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Патент USA US3043630

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July 10, 1962
A. L. GEORGE ET AL
3,043,619
GUIDE FOR OIL WELL PIPE
Original Filed Dec. 10, 1957
34/1
William 0. Lamb
30
282628
30
Albert L. George
INVENTORS
States Ptent'
ice .
0
Patented July 10,1962
2
‘i .
tached to an elevator will greatly lower the center of
gravity of the same and thereby render it easier to stab
3,043,619
GUIDE FOR 01L WELL PIPE
Albert L. George, Lafayette, La., and William C. Lamb,
R0. Box 411, Lafayette, La.;_said‘Aihert L. George
assignor to said William C. Lamb
Continuation of abandoned application VSer. No. 701,745,
Dec. 10, 1957. This applicationMay 23, 1960, Ser.
No. 30,990
.
4 Claims.
3,043,619
a section of pipe with the elevator.
_
ment thereofv will enable access to be had laterally to the
bore within the device and to the pipe being gripped by
the
(Cl. 294-—86) '
’_
Yet another object of the invention is to provide a
device in accordance with the preceding object which by
means of a removable circumferentially extending seg
elevator.
‘
'
I
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_
These together with other objects and advantages which
This invention comprises a novel and useful pipe eleva
tor‘ stabbing or guide device and more particularly per
will become subsequently apparent reside in the details of
tains to a means to facilitate the guiding of a pipe elevator
panying drawings forming a part hereof, wherein like
upon successive sections of pipe for the purpose of inst-all
construction and operation as more fully hereinafter de
scribed and claimed, reference being had to the accom
numerals refer to like parts throughout, and in which:
ing the sections in or removing them from a well bore.
FIGURE 1 is a bottom plan view of the present inven
During the process of drilling or completing a well, of
tion showing the stabbing device mounted upon the bottom
the type employed for producing oil or gas from a produc
end of an elevator;
tive formation, it is necessary to frequently install or re
FIGURE 2 is a view in ‘vertical longitudinal section
move successive sections of pipe in a well, such as a drill
string, a production tubing’, or a casing for wells being 20 taken substantially upon the plane indicated by the sec
tion line 2—-2 of FIGURE 1, parts of the device being
completed or to facilitate further drilling operations. It
shown in section and the elevator being shown in elevaé
is common practice to hoist each successive section of
tion
therein, the section of the pipe being stabbed'being
pipe into a vertical position by means of a ?exible line,
shown in full lines in illustration of the manner in which
one end of which is attached to a traveling block assembly
the device stabs the pipe with the elevator and in dotted
and the other end is attached to a tool known as an ele 25
‘lines
showing the position of the pipe after the ‘same
va-tor which is adapted to ?rmly clamp or grip the upper
section of the pipe for raising or'lowering'the same. The
vertical section of pipe so gripped, is lowered into align
ment with the string ‘of pipe already disposed in a‘ well
has ‘been stabbed by the elevator and gripping by the
same;
>
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FIGURE 3 is‘ a fragmentary view in vertical central
section taken on an enlarged scale substantially upon the
30
bore and is screwed, welded or otherwise attached to the
plane indicated by the section line »3~—3 of FIGURE 2,
previous upper section of pipe of the string, and which
a part of the lower end of the elevator jaws being shown
latter is held by a gripping mechanism at the ?oor level of
in elevation therein; and
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the drilling well. When the section of pipe being installed
FIGURE 4 is an elevation view taken from the left
has been properly attached onto the previous section, the
?exible line with the elevator is lowered onto the upper 35 end of FIGURE 3 and showing the removable segment
of the attachment in accordance with this invention. ’
end of the last section of pipe ‘so attached, the elevator is
Indicated generally by the numeral 10‘ in the accom
then caused to grip the pipe, the gripping mechanism at
panying drawings is a conventional'forrn of pipe elevator,
the floor level of the drilling rig is‘ released and the sec
commonly employed for Well drilling operations,- which
tion of pipe being installed is lowered with the string of
pipe to which it has now been attached into the well bore 40 may be either of the movable jaw type or of the solid ring
type ‘as desired. Secured to and depending from the lower
until the top of this section is‘at about the ?oor levelI
portion of the elevator 10 is the stabbing device desigé
The gripping mechanism at the ?oor level is then again
nated generally by the numeral 12 and forming thelsub
engaged to hold the pipe, the elevator grip is released,
ject
matter of the present invention. The stabbing device
‘and the operation is repeated with each successive sec 45 comprises
a body having a flat plate-like upper flange 14
tion of pipe being installed in the well bore. ‘
which may be suitably apertured to receive bolts 16 or
The present invention pertains particularly to the stab
the like whereby the stabbing device may be removably
bing of a section of pipe into an elevator as'the elevator
secured to the bottom surface of the elevator 10.- Alterna
is lowered onto the pipe. This operation as heretobefore
tively, any other desired fastening means may-be employed
practiced requiresthat -a man on the derrick ?oor or on
for removably securing the stabbing device to the elevator,
a stabbingyboard move the elevator laterally until the pipe
. and in some instances the stabbing device maybe integral
opening in the elevator is directly in vertical alignment
ly formed with the elevator.
» 1
with the pipe, a driller or hoist operator then lowering the
In ‘any event, the stabbing device in addition to the
elevator on to the pipe before the swinging momentum
laterally projecting ‘upper ?ange 14 by which the same is
of the assembly causes the elevator to move out of such 55
alignment. This operation ‘obviously-requires much eifort, I mounted upon the elevator, includes a central opening 18
which is adapted to be aligned with the opening through
demands a great skill and very’ close coordination between
the elevator which receives a pipe section 20, and the
the drill and the derrick man, occasions very exacting‘and
opening 18 is of at least diameterequal to thatlextend
fatiguing work of the derrick man, ‘is usually- time-con
suming and is a fruitful source of accidents in the event 60 ing through the elevator for receiving the pipev section 20.
It is therefore the main objective of the presentinven
The body below the mounting ?ange 14 is provided
with a preferably conical downwardly and outwardly
in accordance with the foregoing object which when at
elevator is lowered will guide the pipe into the opening
of carelessness.‘
.
a
>
»
>
.
?aring skirt 22, the inner surface of the skirt having a
tion to provide a device which will enable alignment of
an elevator with a vertical section of pipe to be engaged ' conical guide surface 24 which at its upper end merges
~
by the latter with a minimum of effort and time being 65 into the opening 18.
It will be observed that the lowereedge of the skirt 22
required and with ahmaximum of safety for the drilling
has its outside diameter somewhat less than that of the
crew.
mounting plate 14, and the internal diameter of the guide
A further object of the invention is to provide an at
surface 24 at its lower end'is su?iciently greater than
tachment which may be applied to conventional elevators
that of the opening 18 to permit the elevator to be-moved
' and will greatly facilitate the ease and certainty with which
70 considerably off-center wtih respect to the pipe section 20,
the elevator may be stabbed on to a section of pipe. ' '
asindicated in ‘full lines in FIGURE 2, and yet. as the
Another object of the invention is to provide a device
3,043,619
3
18 of the stabbing device and thus into the opening in
the elevator for gripping engagement by the latter.
It is an important feature of this invention to provide
a stabbing device of sufficient weight so that when the
same is mountedv upon the lower end of the elevator, it
will appreciably lower the center of gravity of the com
bined elevator and stabbing device until the center of
gravity is adjacent or even below the bottom surface of
the elevator itself.
This lowering of the center of grav
ity prevents possible tilting or swinging of the elevator
from a truly vertical positon ‘as the same is lowered by
its supporting means upon the section to be gripped there
vby, thereby increasing the certainty and facilitating the
4
a stabbing device for securing adjacent said pipe receiv~
, ing opening to guide pipe into said opening so that it may
be engaged by the elevator for raising and lowering com
prising, a body, said body having a downwardly extending
skirt, said skirt de?ning an opening at its lower edge, a
laterally projecting annular ?ange on said body forming
a mounting means for removably ‘securing said body to '
the underside of said elevator to align said opening in
said skirt with said elevator pipe receiving opening, a
downwardly ?aring surface on said skirt, said surface ex
tending from said lower skirt edge and merging at its
upper end toward said elevator pipe receiving opening to
form a guide surface to guide pipe into said aligned ele
vator pipe receiving opening, and means whereby pipe
‘properiattachment of the elevator upon the upper end of
the pipe section 20.
15 and said body may be moved radially of each other to
In certain situations and conditions of use, it may be
disengage said body and the pipe, said means comprising
undesirable or impractical to place the elevator and stab
a portion extending around a part of the circumference
bing device-above the upper end of a pipe section 20.
of and substantially the vertical length of said body, dc;
In order to speci?cally adapt the device for operation
tachable means for securing said portion in position on
under such conditions, there is provided a radially remov
the underside of said elevator and in circumferential
able’ circumferentially extending segment 26 which ex
alignment with said body whereby said guide surface ex
tends part of the total circumferential extent of the stab
bing device and which extends the entire vertical length,
of the stabbing device and extends radially inwardly to
the opening 18 thereof. Obviously, when the segment 26
is removed an axially extending radially disposed slot is
provided through the stabbing device whereby ready ac
cess may be had to the pipe 20 for moving the stabbing
device laterally thereof to position the pipe within the
tends 360“ on said skirt, said detachable means also func
tioning to ‘accommodate removal of said portion whereby
said body is radially removable from about the pipe.
2. A pipe gripping and lifting tool comprising in com?
bination a pipe elevator and a pipe stabber mounted
thereon, said pipe elevator having a pipe receiving axial
opening therethrough and pipe gripping jaws disposed
in said opening, said stabber comprising a body having
stabbing device or to remove the stabbing device ‘from a 30 an axial pipe receiving opening therethrough registering
pipe;',or to obtain access to the pipe on the lower end of
with said opening in said elevator, said body including
the elevator for various purposes.
a mounting'means for securing the body to the underside
' The removable secti-oncomprises a pair of substantially
of said elevator, the underside of said body having a coni
parallel radially projecting axially extending mounting
cally downwardly opening, upwardly converging guide
?anges 28 which are received between and which are 35 surface merging with said body ‘opening, and means
adapted to be' secured to ‘corresponding mounting ?anges
30 carried by the body of the stabbing device on opposite
sides of the radial notch therein, while removable fasten
ing bolts 32 extend through these ?anges for detachably
whereby pipe and said body may be moved radiallyv of
each other to disengage said body and the pipe, said means
comprising a portion extending around a part of the cir
cumference of and substantially the vertical length of said
securing the removable section to the body of the stab 40 body, ‘detachable means for securing said portion in posi
tion on the underside of said elevator and in circumferen
The removable section has an apertured lug or web 34
tial alignment with said body whereby said guide surface
projecting radially therefrom and extending axially there
extends 360°, said detachable means also functioning to
' of between the mounting ?anges 28 and received in the
accommodate removal of said portion whereby said body
45
space between the mounting ?ange 14 and the skirt 22
is radially removable from about the pipe.
‘ bing device.
.and which constitutes a handle for removal of the seg
ment. 26.. .In addition, the body of the device has a plu
rality of rod-like members 36 extending ‘across the space
between the mounting ?ange 14 and the skirt 22 to com
3. A pipe elevator stabbing device for securing adja
cent the pipe receiving opening in a pipe elevator to guide
pipe into the pipe receiving opening so that it may be
engaged by the elevator for raising and lowering compris~
prise safety handles to- assist in manipulating the de 50 ing, a body, said body having an opening therein, said
body including a laterally projecting annular ‘?ange form
As will be, readily understood, in some instances, it
ing a mounting means for securing said body to the under
may be desired to omitthe removable segment 26 in
side of the elevator to align said opening in said body
order to provide a simpler and less expensive construction
with the elevator pipe receiving opening, said body hav
55
of the device. However, the form of device illustrated
ing a downwardly extending skirt, said skirt de?ning an
contains a removable segment which will not onlynper
opening at its lower edge, an inner surface on said skirt
form all of the functions of a non-segmented stabbing
extending from said lower skirt edge and merging at its
device, but‘ also will permit lateral positioning of the de
upper end with said body opening to form a guide surface
vice upon or removal of the device from a pipe section
to guide pipe into said body opening and aligned elevator
60
as hereinbefore set forth.
.
pipe opening, and means whereby pipe and said body may
This is a continuation of our prior copending applica
be, moved radially, of ‘each other to disengage said body
tion bearing Serial No. 701,745, ?led December 10, 1957,
and the pipe, said means comprising a portion extending
‘ vice 30.
now ‘abandoned.
,
around a part of the circumference of and substantially the
Theforegoingis considered as illustrative only of the
vertical length of said body, detachable means for secur
65
principles of ‘the invention. Further, since numerous
ing said portion in position on the underside of the ele
'modi?cations and changes will readily occur to those
skilled in the art, it is not desired to limit the invention
to the exact construction and operation shown and de
vator'and in circumferential alignment with ‘said body
whereby said guide surface extends 360” on ‘said skirt,
said detachable meansv also functioning to accommodate
scribed, and accordingly all suitable modi?cations and
equivalents may be resorted to, falling within the scope 70 removal of said portion whereby said body is radially re
movable from about the pipe.
of the invention as claimed. i
What is claimed is:
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l. A combination pipe elevator and stabbing device
for raising and lowering a pipe comprising, an elevator
having a pipe receiving opening extending therethrough,
4. A pipe elevator stabbing device for securing adja
cent the pipe receiving opening in a pipe elevator to '
guide pipe into the pipe receiving opening so that it may
be engaged by the elevator for raising and lowering com
3,043,619
5
.
prising, a body, said body having an opening therein,
said body including a laterally projecting ?ange forming
from about the pipe.
a mounting means for securing said body to the under
References Cited in the ?le of this patent
side of said elevator to align said opening in said body
‘ UNITED STATES PATENTS
with the elevator pipe receiving opening, said body having
a downwardly extending skirt, said skirt de?ningan open
ing at its lower edge, an inner surface on said skirt extend~
ing ‘from said lower skirt edge and merging at its upper
end with said body opening to form a guide surface to
guide pipe into said body opening and aligned elevator
10
pipe opening, means forming a handle on said body for
manually manipulating the pipe elevator stabbing device,
and means whereby pipe and said body may be moved
radially of each other to disengage said body and the
pipe, said means comprising a portion extending around 15
a part of the circumference of and substantially the verti
6
of said portion whereby said body is radially removable
656,555
Lewis _______________ _'_ Aug. 21, 1900
1,305,438
1,351,744
1,599,067
Braun ________________ __ June 3, 1919
1,601,369‘
1,664,461
1,780,017
1,920,617
‘2,519,285
2,561,692
2,661,979
2,852,301
cal length of said body, detachable means for securing
said portion in position on the underside of said elevator
and in circumferential alignment with said body Where
by said guide surface extends 360° on said skirt, said de 20' 264,930
tachable means also functioning to accommodate removal
Dailey _______________ __‘Sept. 7, 1920
Segelhorst _____________ __ Sept. 7,
Montgomery __________ __ Sept. 28,
Montgomery __________ __ Apr. 3,
Iurey ________________ __ Oct. 28,
Young et a1 ____________ __ Aug. 1,
Rhoads ______________ __ Aug. 15,
Fitch ________________ __ July 24,
1926
1926
1928
1930
1933
1950
1951
‘Stone ________________ __ Dec. 8, 1953
Gentry ____ ___ ________ __ Sept. 16, 19518
FOREIGN PATENTS
Germany ______________ __ Oct. 1, 1913
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