close

Вход

Забыли?

вход по аккаунту

?

Патент USA US3054459

код для вставки
Sept. 18, 1962
_ H. B. SCHRAMM ETAL
3,054,449
WELL TOOLS FOR SUBMARINE WELLS
Filed Nov. 4, 1957
2 Sheets-Sheet 1
INVENTORS
Harry B. Schromm
George Max Raulins
John.V. Fredd
BY
'
ATTORNEY
Sept. 18, 1962
H. B. SCHRAMM ETAL
3,054,449
WELL TOOLS FOR SUBMARINE WELLS
Filed Nov. 4, 1957
2 Sheets-Sheet 2
I
58
57
31
/ fl 4
M48)8
37.,
Fig.2
22
H
30
34
32
INVENTORS
.
3,
\‘~‘. 33
2?
F i g. 4
Harry
B. Schromm
George Mox Ruulins
John V. Fredd
ATTORNEY
United States
atent
ire
1
3,054,449
WELL TOOLS FOR SUBMARINE WELLS
Harry B. Schramm, George Max Raulins, and John V.
Fredd, Dallas, Tex., assignors to Otis Engineering Cor
poration, Dallas, Tex., a corporation of Delaware
Filed Nov. 4, 1957, Ser. No. 694,204
23 Claims. (Cl. 166-665)
Patented Sept. 18, 1962
2
recess or groove 16 is formed in the bore ‘17 of the bowl
above the shoulder 15, and a pair of lateral ?ow pipes
or flow wings 13 provide flow connections for external
casing flow lines, the flow wings being spaced above the
locking recess.
The body 11 of the casing hanger is provided with a
downwardly facing external annular shoulder 1? which is
engageable with the support shoulder, and a packing as
This invention is concerned with well tools for sub
sembly 20, shown to be of the V- or chevron-ring type is
marine wells and more particularly with hangers used in
provided on the exterior of the body above the down
wells.
wardly facing shoulder. The packing assembly is retained
In the completion of certain types of wells it is neces
against an upwardly facing shoulder 21 on the body by
sary to support and anchor a string of well pipe inside
means of a tubular lug carrier mandrel 22 threaded on
a larger string of pipe, the usual situation being the sus
the body 11 of the casing hanger.
pension and securing of a string of casing in the upper end 15
The upper part 23 of the bore of the carrier mandrel
of a string of larger pipe such as surface casing.
is relieved to provide an annular space between the inte
An object of the invention is to provide a hanger for
rior of said mandrel and the exterior of the body, and a
suspending and anchoring the upper end of a string of
plurality of locking lugs 24 are mounted in corresponding
Well pipe or casing in a well against upward or downward
radial windows or slots 25 in the mandrel. The lugs pro—
movement therein.
trude inwardly through the slots into the annular space
Another object of the invention is to provide a casing
between the mandrel and the body and are movable later
hanger and a landing bowl therefor, said landing bowl
ally inwardly and outwardly in the slots. Projecting cars
supporting the casing hanger and the attached casing
26 on the ends of the lugs prevent the lugs from moving
string.
An important object of the invention is to provide a
casing hanger and a running tool therefor such that the
hanger can be lowered into the supporting landing bowl
thereby and locked in said bowl, the running tool then
being released from the hanger and withdrawn from the
well.
A further object of the invention is to provide a casing
hanger which effectively and completely seals with the cas
ing bowl but which can be elevated out of sealing posi
tion to permit circulation of cement or other ?uid through
and around the casing string, the hanger then being low
ered into sealing and locked position.
Another object of the invention is to provide a casing
hanger of the type described which, when set and anchored
in position in the supporting bowl, is permanently locked
therein against movement.
Additional objects and advantages of the invention will
be readily apparent from the reading of the following
description of a device constructed in accordance with the
invention, and reference to the accompanying drawings
thereof, wherein:
FIGURES 1 and 1a, taken together, constitute a view,
partly in section and partly in elevation, of a casing hanger
and a casing string attached thereto, the hanger being low
ered by means of a running tool into a supporting bowl
on a string of larger casing;
FIGURES 2 and 2a, taken together, constitute a view
completely outwardly through the slots. When the lugs
' are moved radially inwardly in the slots against the body,
their outer faces are completely retracted and do not pro
ject beyond the outer surface of the mandrel.
A locking sleeve 27 is longitudinally slidably positioned
in the annular space between the upper end of the body
of the hanger and the upper part of the bore of the carrier
mandrel. When the sleeve is in an upper position, FIG
URE 1, in the annular space, its lower end 28 is posi
tioned above the locking lugs and does not interfere with
their lateral inward movement in the slots of the mandrel.
The lower end of the locking sleeve is downwardly and
inwardly beveled for engagement with corresponding
bevels 29 at the inner surfaces of the upper ends of the
lugs so that, when the sleeve moves downwardly, it earns
the lugs outwardly in the slots 25 to projecting positions.
As the sleeve is moved further downwardly within the
annular space, its outer surface engages the inner surfaces
of the lugs and positively holds said lugs in projecting
positions. The locking sleeve is initially held in its upper
position by means of a plurality of frangible screws 30
threaded in suitable bores of the lug carrier mandrel.
A split lock ring 31 having a cross-section roughly trape
zoidal in con?guration is disposed in an annular groove
32 in the outer surface of the casing hanger body 11.
50 The outer face of the lock ring is parallel with the inner
surface of the sleeve and provided with serrations or teeth
33 having downwardly facing abrupt shoulders. The
inner surface 34 of the ring is downwardly and inwardly
similar to FIGURE 1, showing the hanger installed and
locked in the supporting bowl and the running tool actu
beveled, and the groove 32 is correspondingly beveled.
ated for detachment from the hanger and being with 55 The free diameter of the ring is such that it frictionally
drawn from the well;
engages the inner surface of the locking sleeve but, the
FIGURE 3 is a sectional view taken along the line 3--3
upper faces of the teeth being downwardly and outwardly
in FIGURE 1; and,
beveled, the locking sleeve is slidable downwardly on the
FIGURE 4 is an enlarged fragmentary sectional view
lock ring.
of the means for holding an expander sleeve of the hanger 60
The lock ring serves to prevent upward movement of
in place.
the locking sleeve 27 in that, if the locking sleeve begins
Referring now to the drawings, the numeral 10 refers
to move upwardly, the teeth of the lock ring engage the
to a string of well pipe or casing whose upper end is
sleeve and the ring is moved upwardly on the beveled
threaded into the lower end of a tubular body 11 of a cas
surface of the groove 32. The ring is thus cammed out
ing hanger 12. The casing is installed inside a string of 65 wardly into increasingly tighter engagement with the lock
larger diameter well pipe or casing 13 such as surface cas
ing sleeve, which engagement limits or prevents such
ing.
upward movement of the locking sleeve.
A casing bowl 14 is threaded to the upper end of the
The upper end of the locking sleeve projects above the
surface casing string and includes an upwardly facing in~
upper surface of the body when the sleeve is held by the
ternal annular support shoulder 15 near its lower end for
supporting the casing hanger in a manner to be more
fully set forth hereinafter. An internal annular locking
screws 36 in the upper position shown in FIGURE 1.
However, when the sleeve is moved downwardly to its
lower position on the body, FIGURE 2a, its upper sur
3,054,449
.I
3
a
face is in alignment with the upper end of the casing
hanger body 11.
j
sub 38 and is inserted into the housing, the beveled face
49 of the ?ange 42 engaging the keys and positively
A running tool 36 is provided for lowering the casing
hanger and the attached string of casing into the well and
' moving them outwardly into expanded positions in the
locking recess 56 in the hanger. The retainer collar 45
includes a central tubular mandrel 37 which is threadedly
is then attached to the lower end of the mandrel to retain
the mandrel in position in the running tool housing.
The actuating sub 38 is provided with a downwardly.
Secured in the lower end of a tubular actuating sub 38,
the actuating sub being in turn attached to the lower end
of a string of running-in pipe 39. A tubular, housing 40
facing shoulder 57 which engages the upper end of the
is longitudinally slidably positioned on the running tool
mandrel, the upward movement of the housing being
limited by the engagement of an upwardly facing internal
locking sleeve 27 of the hanger when the running tool is
10 installed in the hanger, and the, engagement of the ac
tuating sub with the locking sleeve (when the shearable
annular ?ange 41 of the housing with an external annular
screws 39 are intact) limits downward movement of the
running tool mandrel 37 in the housing and in the hanger.
In use, the running tool is installed in the hanger, the
of the longitudinal dimension of the manderl. A retainer
cap 43 threaded on the lower end of the housing holds a 15 hanger is attached to the upper end of the casing string
10, and the running in pipe 39 is attached to the actuating
set of packing 44, shown to be of the V or chevron ring
sub 33. The casing string is lowered into and through
type, on ‘the lower outer surface of the housing and en
the casing bowl and the surface casing 13 until the shoul
gages a retainer collar 45 threaded to the lower end of the
der..19 of the hanger engages the supporting shoulder 15
mandrel to limit downward movement of the housing on
of the casing bowl to stop the ‘downward movement of
said mandrel.
,
the casing string.
.
A plurality of supporting keys 46 are disposed in cor
If it is then desired to circulate cement into the casing
responding lateral windows 47 in the housing and are
string to cement the casing string in the well, the entire
slidable laterally therein between outer projecting posi
string of casing is elevated somewhat until the packing
tions and inner retracted positions, the outward move
2d of the hanger is ‘disposed above the ?ow wings 18.
ment of the keys being limited by projecting ears 48 on
Cement can then be pumped downwardly through the
the ends of the keys.
running-in pipe, the running tool, the hanger and the
When the housing is in its lower position on the man
casing, the return ?ow around .the casing string proceed
drel, the external ?ange 42 is disposed behind the keys
?ange 42 of the mandrel locatedrapproximately midway
and engages their inner surfaces to hold them in pro
jecting positions. The lower face 49 of the external
?ange is beveled to engage the correspondingly beveled.
inner surfaces 56 at the upper ends of the keys to cam’
ing upwardly around the lower part of the casing hanger
and being conducted outwardly through the ?ow wings
18, the packing 20 sealing with the bore of the casing
bowl above the flow wings to con?ne the ?ow to the ?ow
wings. The packing assembly and the O-ring seal means
54 con?ne the cement within the string of easing.
installed on the mandrel and the mandrel is moved down
After the cement is circulated in as'desired, the hanger
wardly between the keys. When the mandrel is moved 35
is again lowered until it is supported in the casing bowl 14,
downwardly in the housing so that the ?ange 42'on the
the packing 20 sealing with the casing bowl below the ?ow
mandrel engages the ?ange 41 in the housing, the upper
wings. Downward blows are then delivered to the actu
end of the external ?ange 42 is disposed below the sup
the keys outwardly to projecting position as the housing is
ating sub in the well-known manner by means of 'a tele
porting keys so that the keys are no longer held in the
outer projectingpositions but are free to move inwardly: 40 scoping joint or bumper sub (not shown) in the string
of running-in pipe. Theactuating sub moves the locking
sleeve downwardly on the body of the'hanger, the fran
gible screws 30 being sheared by the blows, and the look
of the frustum of a cone is disposed in a ring groove 52
ing sleeve moves the locking lugs 24 outwardly to project
in the outer surface of the mandrel, the'larger diameter
of the ring being uppermost in the groove, and-the ring 45 ing locking positions inthe recess 16 in the casing bowl.
being initially deformed inwardly to be positioned in the
The locking sleeve slides downwardly over the lock ring
31, the serrations of the lock ring engaging the inner sur
bore 53 of the ‘housing.’ When the mandrel is moved
face of the sleeve to'hold the sleeve in looking position
downwardly to its lowermost position in the housing the
against accidental upward movement.
'
snap ring is moved below, the lower end of the housing,
As the actuating sub and the attached mandrel move
and the retainer cap 43, whereupon the ‘upper edge or
downwardly to move the locking lugs of the hanger into
surface of the snap ring moves outwardly to its free
locking positions, the split‘ring’51 moves below the lower
con?guration and engages the lower face of the retainer
cap to hold the mandrel’in its lowermost position in the
end of the housing and moves outwardly below said hous
housing.
ing to prevent upward movement of the mandrel relative
in the housing to retracted positions.
A splitjor snap ring 51 whose free con?guration is that
An O-ring seal means 54 is disposed in an internal 55 to the housing.
.
groove in the ?ange 41 of the housing'and'sealingly‘
engages the outer surface of the mandrel to prevent the
The ?ange 42 of the mandrel is now disposed below the
supporting keys 46 in thehousing and the keys are freed
?ow of ?uids therebetween.
for inward movement to retracted position. Inasmuch ‘as
'
Thus it'is seen that, when the split ring is deformed
the ends of the keys and the ends of the locking recess
so that its upper surface enters the housing, the housing 60 56 are correspondingly beveled, the keys are’ cammed
is movable to its lower position on'the mandrel wherein
inwardly to retracted positions if the running tool is now'
the keys 46 ‘are moved to and held ‘in projecting positions
moved upwardly from the well to remove it fromthe cas
by the ?ange 42 on the mandrel. When the mandrel is
ing hanger of the well. ' '
' . . '
moved downwardly in the housing, the 'keys are freed for
After the running tool is thus removed from the casing
inward movement and the snap ring holds the mandrel in 65 hanger, a smaller string of easing (not shown)‘ such as
the lower position in the housing.
an “oil”string can ‘obviously be installed inside the casing
The running tool is assembled by installing the housing
40 in the body 11 of the casing hanger, the retainer cap
43 engaging an upwardly facing internal annular shoul-'
der 55 of the ‘hanger body'to limit downward movement
of the running tool housing therein. The packing 44 of
the housing seals with the inner surface of the hanger
body and the ‘keys 46 are positioned at the level of an
annular locking recess 56 in the hanger body. The man
string 10 secured to the casing hanger '12, the oil ‘string
being supported and locked in the casing hanger by means
of a similar but smaller 'hanger' for the‘ oil string, the
smaller hanger being supported on the shoulder 55 of the
casing hanger and locked by means of the locking recess
56 in the same manner that the casing hanger 12 is sup
ported and locked in position.
Thus it will be seen that a'casing hanger 12 has been.
drel 37 of the running tool is attached to the actuating‘ 75 shown and described which is readily and positively lockedv
3,054,449
5
in position in a casing bowl on a string of larger or sur
face casing. It will be seen that the hanger is easily set
at a depth remote from the drilling platform. The hanger,
when installed in the casing bowl is locked against move
ment in either direction, and, further, the locking mecha
nism cannot he accidentally loosened.
It will be seen that a running tool for the hanger has
been shown and described whereby the hanger may be
from said upwardly facing stop shoulder therein; a lock
ing key disposed in said window for lateral sliding move
ment therein between an outer projecting position and
an inner retracted position; means on said key engaging
said body to limit outward movement of said key; a lock
ing sleeve on said body slidable longitudinally thereon
between an upper and a lower position, said sleeve being
disposed above said key when said sleeve is in said upper
position; means on said sleeve and said key engaging one
installed and locked in position in the casing bowl, the
running tool then being released from said hanger.
10 another on downward movement of said sleeve on said
body to move said key to projecting position, said sleeve
It will be seen that the running tool seals positively
engaging and holding said key in projecting position when
with the hanger and that the hanger seals with the casing
said sleeve is in said lower position; an external downward
bowl, so that, before the hanger is fully lowered into
ly facing stop shoulder on said body engageable with the
and locked in the bowl, cement or any suitable ?uid may
be circulated downwardly through the casing string to 15 upwardly facing stop shoulder in said bowl to limit down
ward movement of said body in said bowl; said key when
the lower end of the well. It will be seen that, when the
moved to projecting position engaging in said internal
hanger is locked in the casing bowl, the hanger seals with
the bowl to prevent ?ow therebetween.
It will now be further seen that a casing hanger 12'has
annular recess in the bore of said casing bowl, whereby
said body is releasably anchored in place in said bowl;
been illustrated and described which is provided with a 20 means on said body engageable with a well conductor for
support of the same therebelow; said internal stop shoulder
stop means 19 engageable with a stop means 15 of the
and said internal locking shoulder in said body providing
casing bowl 14 for limiting downward movement of the
means for positioning and securing another well tool
casing hanger, and of the casing string 10 which is at
in said body; means on said body and said sleeve releas
tached to the lower end thereof, in a casing string 13 and
that a lock means or locking lugs 24 are receivable in a 25 ably holding said sleeve in said upper position; and means
on said body and said sleeve engaging one another on
locking recess 16 of the casing bowl to prevent longi
downward movement of said sleeve to prevent upward
tudinal movement of the casing hanger 12 in the casing
movement of said sleeve.
bowl when the locking sleeve 27 is moved from the upper
2. A well head assembly comprising in combination:
inoperative position shown in FIGURE 1 to the lower
a tubular landing nipple adapted to be connected to a.
locking or operative position shown in FIGURE 2a. It
well casing, said landing nipple having an upwardly facing
will also be seen that locking means or locking ring 31
stop shoulder and a downwardly facing lock shoulder
is provided on the casing hanger 12 to prevent upward
therein, and a well conductor support means removably
movement of the locking sleeve 27 from the locking or
positioned in said nipple and including: a tubular body
operative position shown in FIGURE 2a whereby once
the locking sleeve 27 has been moved by downward blows 35 having a lateral window therein; an internal upwardly
facing stop shoulder in said tubular body; an internal
to the locking position shown in FIGURE 2a, the casing
hanger is permanently and rigidly secured to the casing
bowl and, therefore, to the casing string 13.
It will further be seen that the running tool 36 has
been provided for the casing hanger 12 which includes a
tubular mandrel 37 and a housing 40 disposed about the
tubular mandrel and having locking means or lugs 46 en
gaged in the recess 56 of the carrier hanger and held in
such casing hanger engaging position when the housing is
downwardly facing lock shoulder in said body and spaced
longitudinally from said upwardly facing stop shoulder
therein; a locking key disposed in said window for lateral
sliding movement therein between an inner retracted posi
tion and an outer projecting position; means on said key
and said body engaging one another to limit outward
movement of said key; a locking sleeve on said body slid
able longitudinally thereon between an upper and a lower
in an operative upper position on the mandrel 37, being 45 position, said sleeve being disposed above said key when
said sleeve is in said upper position to free said key for
held in such operative position by a ?ange 42 of the run
lateral movement; means on said sleeve and said key
ning tool mandrel 37.
engaging one another on downward movement of said
It will be further seen that the locking lugs 46 are free to
sleeve to move said key to projecting position, said sleeve
move inwardly out of engagement with the casing hanger
engaging and holding said key in projecting position when
12 only upon downward movement of the running tool 50 said sleeve is in said lower position; means on said body
tubular mandrel 37 which occurs simultaneously with the
engaging the stop shoulder of said nipple to position said
downward movement of the locking sleeve 27 whereby the
body in said nipple, said key engaging the lock shoulder of
locking of the casing hanger 12 takes place simultaneously
with the release of the running tool from the casing
hanger.
It will be further seen that means, such as the split ring
said nipple when said body is in position in said nipple
55 and said key is moved to projecting position; means on
‘said body sealingly engaging said nipple when said body is
in position in said nipple; said body having means thereon
51, are provided to engage the housing 40 of the running
for providing for connecting a flow conductor thereto
tool after the locking means 46 have been freed for inward
whereby said body may support said ?ow conductor
movement whereby the tubular housing 40 is removed
60 therebelow; an internal upwardly facing stop shoulder in
with the running tool from the casing hanger.
said tubular body; an internal downwardly facing lock
It will also be apparent that the actuating sub 33, the
shoulder in said body and spaced longitudinally therein
tubular mandrel 37 and the running end pipe 39 provide
from said upwardly facing stop shoulder, said stop shoul
a continuous flow passage therethrough whereby the run
der and said lock shoulder in said body providing means
ning tool may move freely through a casing even though
for
releasably positioning and securing another well device
65
the latter is ?lled with ?uids.
in said tubular body.
What is claimed and desired to be secured by Letters
3. A wellhead assembly of the character set forth in
Patent is:
claim 2 having means on said tubular body and said sleeve
1. A well tool including: a tubular casing bowl adapted
releasably holding said sleeve in its upper position on
to be connected to the upper end of a well casing and
said body.
having an internal upwardly facing stop shoulder and an 70
4. A wellhead assembly of the character set forth in
internal annular locking recess formed in its bore; a tubu
lar body removably positioned in said bowl and having a
lateral window therein; an internal upwardly facing stop
shoulder in said tubular body; an internal downwardly
claim 2 and including: means on said body and said sleeve
engaging one another on downward movement of said
sleeve on said body to prevent upward movement of said
sleeve from such lower position holding said key in pro
facing lock shoulder in said body and spaced longitudinally 7 jecting locking position.
3,054,449
7
' 5. In combination, a tubular landing nipple having an
internal upwardly facing stop shoulder and an internal
downwardly facing lock shoulder, an anchoring device
for installation and anchoring in said landing nipple, and
an installing tool for installing said anchoring device in
said nipple, said anchoring device including: a tubular
body having a downwardly facing shoulder engageable
with the stop shoulder of said nipple to limit downward
body; said installing tool includingi a tubular housin‘ghaw
ing a stop shoulder engageable with the stop shoulder in
said body to limit downward movement of said installing.
tool in said anchoring device; a holding means on said
housing and expandable and retractable laterally thereof,
said holding means having an upwardly facing lock shoul
der engageable with the lock shoulder in, said body when
said installing tool is positioned in said nipple and said
movement of said device in said nipple; a locking means
holding means is in said expanded positiromra tubular man
said body, said locking means having an upwardly facing
lock shoulder engageable with the lock shoulder of said
nipple when said anchoring device is positioned in said
nipple and said locking means is in said expanded position;
therein between a lower and an upper position; a project
on said body and e'xpansible and retractable laterally of .10 drel positioned in said housing and slidable longitudinally
ing means on said mandrel engaging and moving said
holding means to expanded position when said mandrel is
moved to said upper position in said housing; a retaining
expander means on said body movable longitudinally 15 means on said mandrel engaging said housing when said
mandrel is moved to said lower position in said housing
to retain said mandrel in said lower position; an actu
pander means engaging and moving said locking means to
ating shoulder 'on said mandrel engaging the expander
expanded position when said expander means is moved to
means when said installing tool is in position in said body
said lower position; means on said body sealingly engaging
and said expander means is in said upper position, said
said nipple when said anchoring device is positioned in
actuating shoulder moving said expander means to said
said nipple; means on said body and said expander means
lower position on said body when said mandrel is moved
releasably holding said expander means in said upper
to said lower position in said housing; sealing means on
position; means on said body engaging and holding said
thereon between an upper and a lower position, said ex
said housing sealingly engaging said body when said hous
expander means in said lower position when said expander
means is moved to said lower position; an upwardly fac 25 ing is in position in said body; and sealing means in said
ing stop shoulder in said body; a downwardly facing lock
shoulder in said body; said installing tool including: a
tubular housing having a stop shoulder engageable with
housing sealingly engaging said mandrel.
7. As a subcombination, an installing tool for installing
an anchoring device, said tool including: a tubular housing
having a lateral window therein; a holding key in said
the stop shoulder in said body to limit downward move
ment of said installing tool in said anchoring device; ‘a 30 window movable laterally therein between an expanded
and a retracted position; a tubular mandrel positioned in
holding means onpsaid housing and expandable and re
said housing and slidable longitudinally therein between
tractable laterally thereof, said holding means having an
upwardly facing lock shoulder engageable with the lock
shoulder in said body when said installing tool is posi
an upper and a lower position; an expanding means on
lower and an upper position; a projecting means on said
to said lower position; .a ‘retaining means on said man
said mandrel engaging and moving said holding key to
tioned in said nipple and said holding means is in said 35 expanded position when said mandrel is in said upper po
sition, said holding key being freed for inward move
expanded position; a tubular mandrel positioned in said
ment to retracted position when said mandrel is moved
housing and slidable longitudinally therein between a
mandrel engaging and moving said holding means to ex
panded position when said mandrel is moved to said upper
position in said housing; a retaining means on said man
' drel vengaging said housing when said mandrel is moved
to said lower position in said housing to retain said man
drel in said lower position; and an actuating shoulder on
said mandrel engaging the expander means when said in 45
stalling tool is in position in said body and said expander
means is in ‘said upper position, said actuating shoulder
moving said expander means to said lower position on said
body when said mandrel is moved to said lower position
in said housing.
50
6. In combination, a tubular landing nipple having an
internal upwardly facing stop shoulder and an internal
drel and said housing engaging one another when said
mandrel is moved to said lower position to hold. said man
drel in said lower position; and an actuating shoulder on
said mandrel engageable with said anchoring device to
actuate said anchoring device when said mandrel isimoved
downwardly in said housing.
8. An anchoring device for use in a landing nipple hav
ing an upwardly facing stop shoulder and a downwardly
facing lock shoulder and ‘a lateral ?ow port, said device in
cluding: a tubular body having a downwardly facing stop
shoulder engageable with the stop shoulder in said nipple
to limit downward movement of said device to anchoring
position in said nipple; a locking means on said body. and
expandable and retractable laterally thereof, said locking
means having an upwardly facing lock shoulder engage
downwardly facing lock shoulder, an anchoring device for
able with the lock shoulder of said nipple when said de
installation and anchoring in said landing nipple, and an
installing tool for installing said anchoring device in said 55 vice is positioned in said nipple and said locking means
is in said expanded position; expander means on said-body
nipple, said anchoring device including: a tubular body
movable longitudinally thereon between _an upper and a
having a downwardly facing shoulder engageable with the’
lower position, said expander means engaging and moving
stop shoulder of said nipple to limit downward‘movement
said locking means to expanded position when said ex
of; said device in said nipple; a locking means on said body
and expansible and retractable laterally of said body, said 60 pander means is movedto said lower position; sealing
means on said body and said nipple sealingly engaging one
locking means having an upwardly facing’ lock shoulder
another below said lateral ?ow '_port to close off ?ow
engageable with the lock shoulder of said nipple when said
, around said anchoring device and through said ?ow port
anchoring’ device is positioned in said nipple and said lock
when said anchoring device is in anchoring position in said
ing means is in said expanded position; expander means
on said body movable longitudinally thereon between an 65 nipple, said sealing means sealingly engaging one another
above said lateral ?ow port'to permit flow around said
upper and a lower position, said expander means engaging
anchoring'device and through said flow port and to close
and moving said locking means to expanded position when
off ?ow past, said anchoring device above said flow. port
said vexpander means is _moved to said lower position;
when said anchoring device is disposed'in said nipple and
means on said body sealingly engaging said nipple when
saidranchoring device is positioned in said nipple; means 70 is elevated from said anchoring position; means on said
body and said expander means releasably holding said ex
on said body and said expander means releasably holding
said expander means in said upper position; means on
said‘ body engaging and holding said expander means in
said’ lower position when said expander means is moved
to said lower position; an upwardly facing stop shoulder
in said body; a downwardly facing lock shoulder in said 75
pander means in said upper position; and means on said
body and said expander means engaging one another to
positively hold said expander means against upward move
ment when said expander means ‘is moved downwardly on
said body.
'
v
3,054,449
.
9
10
,
9. An anchoring device of the character set forth in
claim 8 wherein the body is provided with an internal up
said groove providing means for releasably positioning
and securing another well tool in said tubular body.
wardly facing stop shoulder and a downwardly facing
14. A well tool for use in a landing nipple having an
lock shoulder for securing therein a suitable installing tool.
10. An installing tool of the character set forth in
upwardly facing stop shoulder and a downwardly facing
claim 7 including: a sealing means on the housing seal
ingly engageable with the anchoring device to prevent
lock shoulder therein, said tool including: a tubular body
having a lateral window therein; a locking key disposed
in said window for lateral sliding movement therein be
?ow therebetween, and sealing means in said housing and
tween an inner retracted position and an outer projecting
said mandrel sealingly engaging one another to prevent
position; means on said key and said body engaging one
flow therebetween.
10 another to limit outward movement of said key; a locking
11. A well tool including: a tubular body; a tubular
sleeve on said body slidable longitudinally thereon be
housing having a lateral window therein, the housing
tween an upper and a lower position, said sleeve being
being disposed on said body and annularly spaced there
disposed above said key when said sleeve is in said upper
around; means on said body closing the lower end of the
position to free said key for lateral movement; means on
annular space between said body and said housing; a 15 said sleeve and said key engaging one another on down
locking key disposed in said Window and slidable lateral
ward movement of said sleeve on said body to move said
ly therein between an inner retracted position and an
key to projecting position, said sleeve engaging and hold
outer projecting position; a locking sleeve slidable longi
ing said key in projecting position when said sleeve is in
tudinally in said annular space between an upper and a
said lower position; means on said body engaging the
lower position, said sleeve being disposed above said key 20 stop shoulder of said nipple to position said body in said
when in said upper position to free said key for lateral
nipple, said key engaging the lock shoulder of said nipple
movement; means on said sleeve engaging said key on
to hold the body in the nipple when said body is in posi
downward movement of said sleeve and moving said
tion in said nipple and said key is moved to projecting
key to projecting position; said sleeve engaging and hold
position; means on said body and said sleeve releasably
ing said key in projecting position when said sleeve is 25 holding said sleeve in said upper position; means on said
in said lower position; an internal upwardly facing stop
body and said sleeve engaging one another on downward
shoulder in said tubular body; and an internal down
wardly facing lock shoulder in said tubular body spaced
movement of said sleeve to prevent upward movement of
said sleeve on said body and comprising an external an
nular groove in said body, said groove having an abrupt
from said stop shoulder; said stop shoulder and lock
shoulder in said tubular body providing means for posi 30 upwardly facing lower shoulder and a downwardly and
tioning and securing another well tool in said body.
inwardly tapered upper shoulder; a split locking ring dis
12. A well tool including: a tubular body; a tubular
posed in said groove and having external serrations hav
housing having a lateral window therein, the housing
ing abrupt lower faces and outwardly and downwardly
being disposed on said body and annularly spaced there
tapered upper faces; said groove and said ring being dis
around; means on said body closing the lower end of the
posed within said sleeve; said ring being of an undeformed
annular space between said body and said housing; a
size so as to engage the inner surface of said sleeve; said
locking key disposed in said window and slidable laterally
sleeve being slidable downwardly over said ring but the
therein between an inner retracted position and an outer
serrations of said ring engaging the inner surface of said
projecting position; a locking sleeve slidable longitu
sleeve and gripping said sleeve on upward movement of
dinally in said annular space between an upper and a
said sleeve, said ring being cammed outwardly into ?rm
lower position, said sleeve being disposed above said key
holding engagement with said sleeve by said upper shoul
when in said upper position to free said key for lateral
movement; holding means operatively associated with
said sleeve and said body holding said sleeve against up
der of said groove to prevent further upward movement
of said sleeve and said ring; and means on said body seal
ward movement on said body; an internal upwardly 45
facing stop shoulder in said tubular body; and an internal
ingly engaging said nipple when said body is positioned
therein.
’
15. A well tool including: an outer tubular housing
downwardly facing lock shoulder in said tubular body
spaced longitudinally therein from said stop shoulder;
having an internal annular upwardly facing stop shoulder
space between an upper and a lower position; said sleeve
facing stop shoulder in said housing; laterally movable
in its bore and an internal annular downwardly facing
said stop shoulder and said lock shoulder in said tubular
lock shoulder in said bore spaced longitudinally therein
body providing means for positioning and securing an 50 from said stop shoulder; means providing a lateral ?ow
other well device in said tubular body.
conductor through the wall of said housing from the bore
13. A well tool including: a tubular body; a tubular
thereof to the exterior thereof intermediate the ends of
housing having a lateral window therein and disposed on
said housing and spaced from said stop and lock shoul
said body and annularly spaced therearound; means on
ders, said ?ow conductor providing for conducting ?uids
said body closing the lower end of the annular space be 55 from the bore of said housing to the exterior thereof;
tween said body and said housing; a locking key disposed
a tubular body member insertable in said housing and
in said window and slidable laterally therein between an
having means thereon for connection with a well con
inner retracted position and an outer projecting position;
doctor and having an external annular downwardly facing
a locking sleeve slidable longitudinally in said annular
stop shoulder thereon adapted to engage the upwardly
being disposed above said key when in said upper posi
locking means carried by said body member and movable
tion to free said key for lateral movement; means on said
between an expanded locking position in which said lock
sleeve engaging said key on downward movement of said
ing means engages with said downwardly facing lock
sleeve and moving said key to projecting position; said
shoulder in said housing and an inner retracted position
sleeve engaging and holding said key in projecting posi 65 out of locking engagement therewith; and an expander
tion when said sleeve is in said lower position; means on
member slidable on said body member and movable into
said sleeve and said housing releasably securing said
engagement with said locking means to move said locking
sleeve in said upper position; holding means operatively
means into expanded locking engagement with said hous
associated with said sleeve and said body allowing down
ing lock shoulder.
ward movement of said sleeve with respect to said body
16. A well tool including: an outer tubular housing
and preventing upward movement of said sleeve with
respect to said body; an internal annular upwardly facing
having an internal annular upwardly facing stop shoulder
in its bore and an internal annular downwardly facing
lock shoulder in said bore spaced longitudinally therein
nular groove in said tubular body spaced longitudinally
from said stop shoulder; means providing a lateral ?ow
above said stop shoulder therein; said stop shoulder and 75 conductor from the bore of said housing to the exterior
stop shoulder in said tubular body; and an internal an
3,054,449
12 '
the‘reof‘for conducting ?uids from the interior of the
housing to the exterior thereof, said ?ow conductor being
disposed intermediate the ends of said housing and spaced
from'said stop and lock shoulders; a tubular body mem
ber insertable in said housing and having means thereon
for connection with a well conductor and having an ex
ternal annular downwardly facing stop shoulder thereon
‘adapted to engage the upwardly facing stop shoulder in
said housing; laterally movable locking means carried by
tubular ‘body providing means for positioning and secur
ing another well device‘in said tubular body.
a 20. A well head assembly comprising in combination:
a tubular landing housing adapted to be connected to a
' well casing and having an internal upwardly facing stop
shoulder and an internal downwardly facing lock shoulder
therein, and a well conductor support means removably
positioned in said housing and including: a tubular body
having a lateral window therein; a locking key disposed
said body member and movable between an expanded 10 in said window for lateral movement therein between an
inner retracted position and an outer projecting position;
locking position in which said locking means engages
means on said key and said body engaging one another
with said downwardly facing lock shoulder in said hous
to limit outward movement of said key; a locking sleeve
ing and'an ‘inner retracted position out of locking en
on said body slidable longitudinally thereon between an
gagement therewith; an expander member_slidable on
said body member and movable into engagement with 15' upper and a lower position, said sleeve being disposed
above said key when said sleeve is in said upper position
said locking means to move said locking means into ex
to free said key ‘for lateral movement in said window;
panded locking engagement with said housing lock shoul
means on said sleeve and said key engaging one another
der; and means providing an upwardly facing stop shoul
on downward movement of said sleeve to move said key
der and a downwardly facing lock shoulder in said tubular
to projecting position, said sleeve engaging and holding
body member adapted to position and releasably secure
said key in projecting position when said sleeve is in said
another well tool in said body member.
lower position; means on said body engaging the upwardly
v17. As a sub-combination in a well device: an outer
facing stop shoulder in said landing housing to position
tubular housing having an internal annular upwardly
said body in said landing housing, said key when in pro
facing stop shoulder in its bore and an internal annular
groove formed in the wall of the bore of said housing 25 jecting position engaging the lock shoulder of said land
ing housing to hold said body in place in said landing
and providing van internal annular downwardly facing
housing; seal means on said body engageable with said
lock shoulder in said bore spaced longitudinally therein
landing housing for sealing therebetween to prevent flow
from said stop shoulder; means providing a lateral ?ow
of ?uids therebetween; means on said body adapted to
conductor from the bore to the exterior of said housing
and providing means for conducting ?uids from the bore 30, be connected to a well conductor for supporting the same
therebelow; an internal upwardly facing stop shoulder in
of the housing to the exterior thereof, said ?ow conductor
being disposed intermediate the ends of said housing ‘and
spaced above said stop and lock shoulders; said lateral
said tubular body; an internal downwardly facing lock
shoulder in said body and spaced longitudinally therein
from said stop shoulder, said stop shoulder and said lock
shoulder in said body providing means for releasably
positioning and securing another well tool in said tubular
flow conductor providing means for directing ?uids from
the interior of said housing to the exterior thereof.
18. A well tool including: a tubular body; a tubular
body.
carrier member mounted on the body and having a lateral
a 21. A well tool comprising: a body provided with a
window therein, said carrier member being spaced an
longitudinal ?ow course, said body being adapted to
nularly from said body; a locking key disposed in said
window of said carrier member and slidable laterally 40 support a well conduit from the lower end thereof, said
thereinbetween an inner retracted position and an outer
body having an external downwardly facing shoulder stop
projecting position; a locking sleeve slidable longitudinally
means thereon; a ?rst laterally movable means carried
in said annular space between said carrier member and
said body between an upper and a lower position on said
body; said sleeve being disposed above said key when in
said upper position to free said 'key for lateral movement;
means on said sleeve engaging said key on downward
movement of said sleeve and moving said key to projecting
position; said sleeve engaging and holding said key in
projecting position when said sleeve is in said lower posi
by the body and movable laterally outwardly with respect
to said-body to a projected locking position; a second
means movably mounted on said body for movement
longitudinally of said body into a position engaging said
?rst laterally movable means and moving said ?rst later
ally movable means into projecting position with respect
to saidbody; an upwardly facing stop shoulder in the lon
gitudinal ?ow’ course of the body; and a downwardly
facing lock shoulder in the longitudinal flow course of
tion; an internal upwardly facing stop shoulder in said
said body and spaced longitudinally from said stop shoul
tubular body; and an internal downwardly facing lock
der therein, said stop shoulder and said lock shoulder in
shoulder in said tubular body spaced from .said stop
said ?ow course in said body providing means for releas
shoulder; said stop shoulder and said lock shoulder in said
tubular body providing means for positioning and secur 55 ably positioning and securing another well device in said
flow course of said body.
ing another well tool in said body.
22. A well tool comprising: a body provided with a
19. A well tool including: an elongate tubular body;
longitudinal flow course therethrough open at its upper
a tubular carrier member mounted on the body and hav
end, said body being adapted to support a well conduit
ing a lateral window therein, said carrier member being
from the lower end thereof, said body having an external
spaced annularly from said body; a locking key disposed
downwardly facing shoulder thereon; a ?rst laterally mov
in thetwindow of said body and slidable laterally therein
able means carried by the body and movable laterally
between an inner retracted position and an outer project
outwardly with respect to said body to ‘a projecting ‘posi
ing lposition; va locking sleeve slidable longitudinally in
said annular space between said carrier member and said
body between an upper and ‘a lower position with respect
to said body and said carrier; said sleeve being disposed
above'said key when in said upper position to free said
key for lateral movement; holding means operatively asso
tion thereon; a second means movably mounted on said
body for movement longitudinally of said body into a
position engaging said ?rst laterally movable means and
moving said ?rst laterally movable means into projecting
position; locking means carried by said body engageable
against upward movement on said body; an internal up
wardly facing stop shoulder in said tubular body; and an
with said second means ‘for preventing disengagement of
said second ineans'whereby said locking means holds
said second means in engagement with said ?rst movable
means in position engaging said ?rst movable means to
ciated withrsaid, sleeve and said body holding said sleeve
internal downwardly facing lock shoulder in said tubular
hold said ?rst movable means in projecting position; an
body spaced longitudinally therein from said stop shoul
upwardly'facing stop shoulder in the longitudinal ?ow
der; said stop shoulder and said lock shoulder in said
course of the body; and a downwardly facing lock shoul
3,054,449
13
14
der in the longitudinal ?ow course of said body and
engageable with the wellhead housing to limit downward
movement of said carrier housing and permit downward
spaced longitudinally from the stop shoulder therein, said
stop shoulder and said lock shoulder in said ?ow course
in said body providing means for releasably positioning
and securing another well device in said flow course of
said body.
movement of the elongate member relative to said carrier
housing and said lock means to free said lock means for
inward movement into retracted position; and latch means
23. A running tool for a Well conductor support for
positioning said support in a wellhead housing, said run
ning tool including: an elongate member; a carrier hous
on said elongate member engageable with said carrier
housing for holding said elongate member in a lower
position relative to said carrier housing when said elon
gate member has been moved downwardly to such lower
ing longitudinally slidably mounted on said elongate mem
position.
ber; lock means carried by said carrier housing and mov 10
able laterally thereon between an expanded locking posi
tion wherein said lock means is engageable with the
wellhead housing and a retracted freeing position; said
elongate member having a lock surface engageable with
said lock means for holding said lock means in projecting 15
locking position, said lock surface on said elongate mem
ber being movable out of engagement with said lock
means to free said lock means for inward movement to
retracted position upon downward movement of said 20
elongate member with respect to said lock means; said
carrier housing having external stop means thereon also
References Cited in the ?le of this patent
UNITED STATES PATENTS
1,912,823
Church _______________ __ June 6, 1933
2,409,811 ‘
Taylor et al ___________ __ Oct. 22, 1946
2,577,068
2,698,056
2,862,560
Baker ________________ __ Dec. 4, 1951
Marshall et al _________ __ Dec. 28, 1954
Bostock et a1 ___________ __ Dec. 2, 1958
2,862,564
2,889,886
Bostock ______________ __ Dec. 2, 1958
Gould ________________ __ June 9, 1959
Документ
Категория
Без категории
Просмотров
0
Размер файла
1 406 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа