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Патент USA US3100540

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Aug. 13, 1963
w. J. BIELSTEIN
3,100,535
.WIRE LINE CEMENTING TOOL
Filed Dec. 5, 1960
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‘FIG. 2.
FIG.3.
FIG. 4.
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WALTER J. BIELSTEIN,
38
ATTORNEY.
United States Patent 0
1C6
1
3,100,535
Patented Aug. 13, 1963
2
3,100,535
Walter J. Bielstein, Corpus Christi, Tex., assignor, by
WIRE LINE CEMENTING TOOL
mesne assignments, to Jersey Production Research Com
pany, Tulsa, Okla, a corporation of Delaware
Filed Dec. 5, 1960, Ser. No. 73,819
5 Claims. (Cl. 166--162)
This invention relates to well' cementing, and more
In FIGS. 1 and 2 there is illustrated a casing string 5
‘cemented ‘to the walls. of well bore 1 by means of a
cement sheath 3. An elongated mandrel member is
provided including upper mandrel section 13 and lower
mandrel section 31. A ?shing head 7 is provided at the
upper end of upper mandrel section 13 for the purpose of
receiving a wire line pulling tool to pull apparatus out of
the bore of easing 5. Packer sealing elements 19 and 21
are a?ixed to a packer end plate member 15 which in turn
particularly to wire line apparatus for squeeze cementing 10 is fastened ‘to the upper end of mandrel section 13 by
wells in the earth.
means of a pin 16. Similarly, packer sealing elements 35
In well completion operations, it is customary to cement
and 37 ‘are secured to packer end member '33 which is fas
either a casing string or one or more production pipe
strings (?ow tubings) to the earth formations through
tened ‘to lower mandrel member 31 by means of a pin 39.
Ports ‘9 and 41 are provided in mandrel members 13 and
which a borehole has been drilled. The purpose of the 15 31, respectively, immediately ‘above packer end plate mem
cementing operation is to prevent ?uid migration between
production zones when two or more zones are to be pro
ber 15 and immediately below packer end plate member
33. A frangible cylindrical barrel 23 is secured to the
lower end of packer member 15 and to the upper end of
duced through the same borehole, or between the. upper
most production zone and fresh water sands penetrated
packer member 33 so ‘as to surround the portion of the
by the borehole. ‘For any of a number of reasons, there
mandrel members 13 and 31 between the packer end plate
may be an imperfect bond between the cement and the
members Y15 ‘and 33. A slurry 25 of ?uid cement or a
earth formation. For example, the mud or ?lter cake may
hardenable plastic ?lls the space between the frangible
have been imperfectly removed before the cementing op
cylindrical barrel 23 and the mandrel members 13 and 31.
eration, and earth formation ?uids migrating to the well
The telescoping mandrel members‘ 13 and 31 are
bore during production may have at least partially washed 25 adapted to ‘telescope between the least-telescoped posit-ion
away the ?lter cake. When it is suspected that voids exist
illustrated in FIG. 1 in which the apparatus is lowered
between the cement and the surrounding formations, it is
into the well, and the most-telescoped position that will
customary to place a bridging plug in the pipe string,
be assumed when upper packer member 15 abuts against
perforate the pipe string and the surrounding cement‘
the upper end of lower telescoping member 31.
above the bridging plug, and squeeze a quantity of cement 30
The lower end of mandrel member 31 is elongated so
slurry through the new perforations. The cement slurry
as to provide a spacing nipple adapted to abut against a
remaining in the bore of the pipe string may then be
.bull plug or other obstruction in the well pipe to place
lower packer sealing elements 35 and 37 immediately
circulated out of the well by means of a tubing string
lowered within the pipe string. A similar ‘operation may
'below the lowermost perforations 29 in zone 27. In lieu
be conducted to seal 01f perforations to a depleted forma
of the spacingnipple, .a-collar-latching device, such as is
tion preparatory to reperforating at a higher level in a
manufactured by Pressure Services Incorporated of Dallas,
borehole to produce another, formation
Texas, may be used. The frangible barrel 23 may be
formed of thin glass or porcelain. The barrel 23 should
In many locations it is undesirable to circulate out ce
‘be su?iciently‘thin and brittle as to shatter upon applica
ment remaining in the pipe string. Under these circum
t-ion of longitudinal pressure thereto.
stances it becomes desirable to lower the cement into the
A plug 38 is connected to the lower end of mandrel
well on a wire line tool, squeeze the cement through perfo
31 for the purpose of sealing the lower end of the man
rations in the pipe string, and remove the excess cement
from the pipe string along with the ‘tool.
drel so that-upon application of pressure, an area differ
ential in a downward direction will be assured.
tion, there is provided an elongated. mandrel having 45. In operation, the apparatus is inserted into the well
pipe or casing 5 and allowed to fall with or without wire
spaced-apart packer-members ‘thereon, and a frangible
. _ In accordance with the teachings of‘the presentinven
member surrounding the mandrel between the packer
line attached ‘until it is positioned opposite perforations
29 by the spacer nipple extension of mandrel section 31.
While the apparatus is falling in the well, fluid will pass
50
through‘port 41, up the bores of the mandrel members
movable longitudinally of the mandrel responsive to
members and a?ixed to the packer members. 'The ap
paratus is constructed sorthat the packer members are
hydraulic pressure impressedon the‘ upper member. The ‘
31 and 13, a and out upper port 9.
Heavy hydraulic
pressure is thereupon exerted in the bore of Well pipe or
casing 5. "Considerable longitudinal pressure will be ex
ented upon barrel 23 by packer end member 15 and will
‘apparatus is so positioned, and hydrostatic pressure is
applied thereto, the upper member moves downwardly 55 shatter the barrel 23.“ The packer end member 15 and
the upper mandrel member 13 ‘will move downwardly as
relative to the lower member, breaking the frangible
illustrated in FIG. 2, and cement will. be squeezed
annular member and squeezing cement contained in the’
through the perforations 29. If the tool is dropped into
space between the annular member and the‘ mandrel into
the well in lieu of running on a wire line, then wire line
‘ the perforations in the pipe string as the packer members
pulling tool 47 (see FIG. E2) is lowered into the well to
are moved toward a closed-spaced position thereof.
latch on to the ?shing head 7 of upper mandrel member
_ Objects and features of the invention not evident from
13“ to retract the apparatus from the well.‘ When the
the above discussion will become apparent upon considera
cement in the perforationsrlhas set, other well'operations
tion of the following description of the invention when
may be conducted or resumed.
‘taken in connection with the accompanying drawing,
65
FIG. 3‘ illustrates a modi?cation of the invention where
in a plug 42 provided with a ?shing head 43 is placed
FIGS. 1 and 2' illustrate one embodiment of the inven
tion in two operative positions thereof;
at the lower end of the lower mandrel section 31 and is
apparatus is further adapted to be positioned adjacent
preselected perforations in the pipe string. When the
wherein:
‘
p.
‘
FIG. 3 illustrates another embodiment of the inven
tion;
and
._
_
p
FIG. 4 illustrates still another embodiment of the
invention.
7
‘
.
‘
.
affixed thereat by means of a shear pin 45. A suitable
70 wire line. running and pulling tool 49 latches on to the,
?shing ‘head'43.
The apparatus of FIG. 4 differs from the apparatus
3,100,535
d
4
,
a
t
3. Apparatus for squeeze cementing in a Well including
a production pipe string cemented to the sides of a bore
hole and perforated to open up ?uid communication with
a productive earth formation, said apparatus comprising:
illustrated in FIGS. 1 through 3 in that a single mandrel
member 14 is provided vwhich is permanently a?ixed to a
wire line 51. The upper packer end member 15 is sl1d~
ably supported on the mandrel 14 while the lower'packcr
end member 33 is pinned to the mandrel in the same
a tubular mandrel; ?rst and second annular pack-er means
connected to opposite ends of said mandrel and adapted
'to seal against the inner wall of the pipe string; container
means, including a frangible annular outer member,
connected between said ?rst and second packer means
manner as illustrated with respect to FIGS. 1 through 3.
Thus, when heavy hydraulic pressure is exerted on the
upper packer end member 15, the frangible barrel '23
will shatter so that the packer end member ‘15'may slide
downwardly ‘on mandrel 14 to force cement out through 10 around said mandrel and de?ning a closed annular con
tainer for a cementitious fluid; means connected to said
perforations 29. When the squeezing operation is fcom
pleted, the apparatus is pulled out of the pipe string 5
mandrel for positioning the lower packer means at a pre
by means of the wire line 51.
;
determined level in the pipe string; openings in said
The apparatus is quite advantageous in that ‘there is
mandrel ‘above and below said ?rst and second packer
no requirement that the pipe string have a bridging plug 15 means for permitting ?uid communicaton through said
installed therein for remedial cementing» operations.
mandrel between the portion of the Well bore above'the
Furthermore, there is no necessity ‘for lowering a tubing
upper packer means and below the lower packer means;
string into the well for circulating out cement when the
said ?rst and second packer means and said mandrel being
interconnected to permit relative movement between said
the well bore.
20 ?rst and second packer means; and a ?shing head in said
The invention is not necessary to be restricted to ‘the
mandrel at the lower end thereof adapted to be seized
speci?c structural details or arrangement of parts herein
by a wire line retracting tool.
set forth, as various modi?cations thereof may be eifected
4. Apparatus for squeeze cementing in a Well including
without departing from the spirit and scope of the, inven- " a production pipe string cemented to the sides of a bore
tion.
,
v
25 hole and perforated to open up fluid communication with
The objects and features of the invention as well as
a productive earth formation, said apparatus comprising:
the preferred manner of carrying out the invention hav
?rst and second interconnected telescoping tubular mem
‘production pipe string is cemented directly to the walls of
ing been completely described above, what it is desired
bers adapted for limited telescoping movement between
to claim is:
?rst an second telescoping positions thereof; ?rst and '
1., Apparatus for squeeze cementing in a well including 30 second annular packer means connected to opposed ends
a production pipe string cemented to the sides of a bore
of said ?rst ‘and second telescoping members, respec
tively, and adapted to seal against the inner wall of the
hole and perforated to open up ?uid communication with
a productive earth formation, said apparatus comprising:
a tubular mandrel; ?rst and second packer means con
pipe‘ string; means, including a frangible annular outer
member, connected between said ?rst and second‘ packer
nected to said mandrel and longitudinally spaced apart 35 means to hold said telescoping members in said ?rst po
thereon, adapted to seal against the inner wall of'the pipe
string, said ?rst and second packer means and the mandrel
sition thereof and surrounding said telescoping members
to de?ne a closed container for a cementitious ?uid;
being connected together to permit movement of one of
the packer means toward the other packer means to a
close-spaced position thereof; means, including a frangible
and means connected to one of said telescoping members
adapted to connect said telescoping members to a wire
40
annular member, connected between said ?rst and second
packer means and surrounding said mandrel to de?ne with
‘said mandrel a closed container for a cementitious ?uid,
said frangible member being adapted to be shattered when
line; the distance between said ?rst and second’ packer
means, when said telescoping members are fully tele
scoped, being greater than the total interval perforated
in the pipe string so ‘that said ?rst and second packer
means and the telescoping members straddle the per
' said packer means are moved toward each other; and 45 forated interval when the telescoping members are fully V
means connected to said mandrel, adapted to connect said
telescoped.
.
mandrel to a wire line for lowering said mandrel to the
5. Apparatus for squeeze cementing in a Well including
depth of the perforations of the pipe string; the distance
a production pipe'string cemented to the sides of a bore
between said ?rst and second packer means being greater
hole andperforated ‘to open up ?uid communication'with
than the total interval perforated in the pipe string so 50 a productive earth formation, said apparatus compris
that said ?rst and second packer means and said mandrel
ing: first and second interconnected telescoping tubular
straddle the perforated in'terval‘when the packers are in
members adapted for limited telescoping movement be
the close-spaced position thereof.
tween ?rst and second telescoping positions thereof; ?rst
2. Apparatus for squeeze cementing in a well including
and second packer means connected to opposed ends of
‘a production pipe string cemented to the sides of a bore 55 said ?rst and second telescoping members, respectively,
’ hole and perforated to open up ?uid communication with
and adapted to seal against the inner wall of the pipe
t a productive earth f-ormation,ysaid apparatus comprising:
string; means, including a frangible'annular outer mem
a-tu-bular mandrel; ?rst and second annular packer means
ber connected between said ?rst and second packer
connected to opposite ends'o'f said mandrel and adapted
,means to hold said telescoping members in said‘ ?rst '
to seal against the inner wall of ‘the pipe string; con
tainer, means, including a ‘frangible annular outer mem
ber,‘ connected between said pack-er means aroundsaid
mandrel and de?ning a closed annular container for a
position thereof and surrounding said telescoping mem
bers to ‘de?ne a closed container for a cementitious ?uid;
means connected to one of said telescoping members '
adapted to connect said telescoping members to ‘a wire
line; the distance between said ?rst and second packer
cementitious ?uid, said frangible member being adapted
to be shattered when one of said packer means is moved 65 means, when said telescoping members are fully tele
toward theother of said packer means; means connected
scoped, being greater than the total interval perforated in
to said mandrel for positioning the lower packer means
the pipe string so that said ?rst and second packer means
at a predetermined level in the, pipe string; and openings in
said mandrel above and below said annular packer means
and the, telescoping members straddle the perforated in
for permitting'?uid communication through said mandrel 70 terval when the telescoping members are fully telescoped;
and a ?shing head within the'lower of said telescoping’
between the portion ofthe well bore above the upper
tubular members and connected near the lower end there'
packer means and-below the lower packer means; said
?rst and second packer means and said mandrel being a of adapted to receive a wire line retrieving tool‘for re-.
trieving said apparatusfrom the well.
interconnected to permit relative movement between said
?rst and second packer means.
75
(References on following page)
3,100,535
6
5
References Cited in the ?le of this patent
UNITED STATES PATENTS
1,676,785
2,526,021
Lewis _______________ __ July 10, 1928
Fultz ________________ ___ Oct. 17, 1950
5
2,715,943
2,725,940
2,740,478
2,769,498
2,935,133
,
True ________________ __ Aug. 23, 1955
Shidell ________________ __ Dec.
Greene _______________ __ Apr.
Huber ________________ __ Nov.
Eckel ________________ __ May
6,
3,
6,
3,
1955
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1960
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