CN207813557U - A kind of water plugging of horizontal well tubing string - Google Patents
A kind of water plugging of horizontal well tubing string Download PDFInfo
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- CN207813557U CN207813557U CN201721798315.0U CN201721798315U CN207813557U CN 207813557 U CN207813557 U CN 207813557U CN 201721798315 U CN201721798315 U CN 201721798315U CN 207813557 U CN207813557 U CN 207813557U
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Abstract
The utility model belongs to Water in Water Shutoff in Oil Field technical field of tools, and in particular to a kind of water plugging of horizontal well tubing string.A kind of water plugging of horizontal well tubing string is suitable for oil field pumping well, including packer, support valve and horizontal well ball seat, the lower part of valve and oil well pump is supported to connect, and support valve connects packer by oil pipe, and packer connects horizontal well ball seat by oil pipe.The utility model uses bicone bidirectionally anchoring, packer lower cone back off structure to solve the problems, such as that lower cone uses active mechanical power off card.
Description
Technical field
The utility model belongs to Water in Water Shutoff in Oil Field technical field of tools, and in particular to a kind of water plugging of horizontal well tubing string.
Background technology
In field of oil field oil extraction, with the need of horizontal well technology increasingly improved with China's expanding economy to petroleum resources
Ask sharp increase, the proportion of horizontal well quantity and horizontal well production all will be in very fast ascendant trend.Currently, being deposited during horizontal well development
It is aqueous after water breakthrough to rise fast, oil-producing and decline fast problem, it is such as unable to accurate judgement water-yielding stratum section, adopts an effective measure and is blocked up
Water, moisture content will rise always, or even loss reserves.And water plugging string is since there are complicated for operation, numbers for reasons in structure now
According to obscuring, the problem of pulling difficulty influences oil recovery efficiency.
Invention content
The purpose of this utility model is that providing a kind of performance stabilization, processing, group for problems of the prior art
It is small to fill difficulty, is mainly used for the water plugging of horizontal well tubing string of separate zone water shutoff.
The technical solution of the utility model is：
A kind of water plugging of horizontal well tubing string is suitable for oil field pumping well, including packer, support valve and horizontal well ball seat, branch
The lower part for supportting valve and oil well pump connects, and support valve connects packer by oil pipe, and packer connects horizontal well ball seat by oil pipe.
The packer includes top connection, and top connection is connect with deblocking pull rod screw, and is connect simultaneously with connector sleeve, even
It is provided in female connector and sets shear pin, set shear pin and be deep into top connection, connector sleeve is located at the outside of deblocking pull rod, and connector sleeve is logical
Lock tube connection upper piston cylinder is crossed, internal thread is provided on lock tube, upper piston cylinder connects lower piston cylinder, and it is total that lower piston cylinder connects packing element
At packing element assembly connects pressure cap, and pressure cap connects slips by upper cone, and the other end of slips is connect with lower cone, and lower cone is logical
Cross the connection lower contact of fluting tapered end holding screw；The deblocking pull rod is connect by pressure ring with upper piston, pressure ring and upper piston
Junction is provided with wedging ring, closing piece and lock ring, and setting external screw thread is connect with the screw-internal thread fit on lock tube on lock ring, upper piston
On be provided with deblocking shear pin, deblocking shear pin is extend into deblocking pull rod, and upper piston connects lower piston, and upper piston is drawn with deblocking simultaneously
Bar connects, and lower piston connects central tube, and center bottom of the tube is connect with lower contact.
The support valve includes supporting rod, and support valve top connection is equipped with outside supporting rod, supports valve top connection outer shroud
It is cased with outer barrel, support valve top connection is tightly connected with outer barrel, and junction first half sealing lower half has the gap, and sealing position
It is provided with inlet opening, shear pin is set on outer barrel, shear pin extend into the sealing of support valve top connection and outer barrel junction, and outer barrel is another
One end setting support valve lower contact, lower contact upper end and outer barrel form step, and the supporting rod is connect with piston, piston and
Spring is arranged in they sup-port valve lower contact, and the support valve top connection lower end heads on piston setting, the piston
It is connect with outer barrel, piston is connect by the way that snap ring is arranged with outer barrel；
The horizontal well ball seat includes main body, and body interior is in hollow setting, and fuse is provided in the space in main body
And baffle, fuse one end head on body interior one end, one end of baffle heads on the other end of body interior, between baffle and fuse
It is provided with spring and valve ball, spring is arranged on baffle on one side, and spring another side heads on valve ball and fixes valve ball, is arranged on baffle
There is liquid channel.
Specifically, the top connection is fixed with deblocking pull rod by tapered end holding screw of slotting, and it is close by O-ring seals
Envelope.
Specifically, being provided with slip sleeve on the slips, slips is internally provided with slips compression spring.
Specifically, the packing element assembly includes that packing element and middle packing element, end packing element is held to be located at the both ends of middle packing element, packing element is held
With setting spacer ring among middle packing element.
Specifically, being provided with outer tube between the packing element assembly and central tube, outer tube one end heads on lower piston cylinder, another
End sticks pressure cap and is connect simultaneously with upper cone, and outer tube is sealed with lower piston cylinder by O-ring seals.
Specifically, the supporting rod is provided with supporting rod pressure cap with piston junction, supporting rod pressure cap is bored by slotting
End holding screw is fixedly connected with the piston.
Specifically, the support valve top connection lower end is provided with shear pin, shear pin is extend into piston.
Specifically, being sealed by O-ring seals between the support valve top connection and piston, lead between outer barrel and piston
O-ring seals sealing is crossed, is sealed by O-ring seals between outer barrel and support valve lower contact.
Specifically, the baffle is connect with main body screw, the fuse and main body are connected by shear pin 57.
Specifically, being sealed by O-ring seals between the fuse and main body.
The utility model is mainly made of packer, the support downhole tools such as valve and horizontal well ball seat, passes through each tool
Assemble can be formed seal up adopt down, seal under adopt, seal it is intermediate adopt both ends, intermediate diversified forms are adopted at envelope both ends, be suitable for straight well, tiltedly
The techniques such as well, water plugging of horizontal well.The bicone slips that the packer used in tubing string provided by the utility model uses is two-way
Anchoring, packer lower cone back off structure solve the problems, such as that lower cone uses active mechanical power off card；Performance is stablized, lock ring
With lock tube using processing, the small single side screw thread of assembling difficulty, form single side stepping retaining mechanism, improve packer it is setting,
Sealing reliability, the packer are mainly used for the DP technologies requirement such as straight well, inclined shaft, directional well, horizontal well, especially suitable for
It multilayer system, high pressure, small interlayer well and is difficult to set the techniques such as formation testing by layer, oil recovery, water detection, the water blockoff of well with conventional tool.This
The support valve that utility model is provided is mainly used for the water plugging strings such as straight well, inclined shaft, directional well, horizontal well, mating with packer
It uses, which closes dependable performance, and support can verify that the sealing performance of packer when closing.The utility model is carried
The horizontal well ball seat of confession is mainly used for the water plugging strings such as straight well, inclined shaft, directional well, horizontal well, is matched with packer.
Description of the drawings
Fig. 1 is the packer construction schematic diagram of the utility model；
Fig. 2 is the utility model support valve arrangement schematic diagram；
Fig. 3 is the structural schematic diagram of the utility model horizontal well ball seat.
1 top connection, 2O shape sealing rings, 3 fluting tapered end holding screws, 4 set shear pin, 5 lock tubes, 6 deblocking pull rods, living on 7
Plug tube, 8 lock rings, 9 deblocking shear pins, 10 O-ring seals, 11 upper pistons, 12 O shape sealing rings, 13 O-ring seals, 14 times work
Packing element, 21 outer tubes, 22 pressure caps, 23 in plug tube, 15 lower pistons, 16 O-ring seals, 17 central tubes, 18 end packing elements, 19 spacer rings, 20
Tapered end of slotting holding screw, 24 upper cones, 25 slip sleeves, 26 pins, 27 slips, 28 slips compression springs, 29 lower cones, 30 fluting cones
Hold holding screw, 31 O-ring seals, 32 lower contacts, 33 connector sleeves, 34 pressure rings, 35 wedging rings, 36 closing pieces, the sealing of 37 O shapes
Circle, 38 supporting rods, 39 support valve top connections, 40 supporting rod pressure caps, 41 fluting tapered end holding screws, 42 O-ring seals, 43 are lived
Plug, 44 outer barrels, 45 shear pins, 46 O-ring seals, 47 snap rings, 48 support valve lower contacts, 49 springs, 50 O-ring seals, 51 masters
Body, 52 baffles, 53 springs, 54 valve balls, 55 O-ring seals, 56 fuses, 57 shear pins.
Specific implementation mode
A kind of water plugging of horizontal well tubing string is suitable for oil field pumping well, including packer, support valve and horizontal well ball seat, such as
Fig. 1 show packer construction schematic diagram, if Fig. 2 is support valve arrangement schematic diagram, as Fig. 3 show horizontal well ball socket structure
Schematic diagram.The lower part of valve and oil well pump is supported to connect, support valve connects packer by oil pipe, and packer connects water by oil pipe
Horizontal well ball seat.
The packer includes top connection 1, and top connection 1 is threadedly coupled with deblocking pull rod 6, and is connected simultaneously with connector sleeve 33
It connects, the top connection 1 is fixed with deblocking pull rod 6 by tapered end holding screw 3 of slotting, and is sealed by O-ring seals 2, is connected
It is provided on set 33 and sets shear pin 4, set shear pin 4 and be deep into top connection 1, connector sleeve 33 is located at the outside of deblocking pull rod 6, even
Female connector 33 connects upper piston cylinder 7 by lock tube 5, and internal thread is provided on lock tube 5, and upper piston cylinder 7 connects lower piston cylinder 14, lower work
Plug tube 14 connects packing element assembly, and the packing element assembly includes that end packing element 18 and middle packing element 20, end packing element 18 are located at middle packing element 20
Both ends, hold and spacer ring 19 be set among packing element 18 and middle packing element 20.Packing element assembly connects pressure cap 22, and pressure cap 22 passes through upper cone 24
Slips 27 is connected, the other end of slips 27 connect with lower cone 29, is provided with slip sleeve 25 on the slips 27, in slips 27
Portion is provided with slips compression spring 28.Lower cone 29 connects lower contact 32 by tapered end holding screw 30 of slotting；The deblocking pull rod 6
It is connect with upper piston 11 by pressure ring 34, upper piston 11, which is located in upper piston cylinder 7, to be sealed between it by O-ring seals 12, is pressed
Ring 34 is provided with wedging ring 35, closing piece 36 and lock ring 8 with 11 junction of upper piston, is arranged on external screw thread and lock tube 5 on lock ring 8
Screw-internal thread fit connection, deblocking shear pin 9 is provided on upper piston 11, deblocking shear pin 9 is extend into deblocking pull rod 6, upper piston
11 connection lower pistons 15, upper piston 11 connect with deblocking pull rod 6 sealed among it by O-ring seals 10 simultaneously, lower piston 15
Have O-ring seals 13 between top and upper piston cylinder 7, lower piston 15 connects central tube 17, central tube 17 and lower piston cylinder 14 it
Between be equipped with O-ring seals 16, outer tube 21 is provided between the packing element assembly and central tube 17,21 one end of outer tube heads on lower work
Plug tube 14, the other end stick pressure cap 22 and are connect simultaneously with upper cone 24, pass through tapered end of slotting between pressure cap 22 and upper cone 24
Holding screw 23 is fixedly connected, and outer tube 21 is sealed with lower piston cylinder 14 by O-ring seals 37,17 bottom of central tube and lower contact
32 connect and are sealed by O-ring seals 31.
The support valve includes supporting rod 38, and support valve top connection 39 is equipped with outside supporting rod 38, supports and is connect on valve
First 39 outer shroud is cased with outer barrel 44, and support valve top connection 39 is tightly connected with outer barrel 44, and junction first half sealing lower half has
Gap, and sealing position is provided with inlet opening, and shear pin is arranged on outer barrel 44, shear pin extend into support valve top connection 39 and outer barrel 44
The sealing of junction, 44 other end of outer barrel setting support valve lower contact 48,48 upper end of lower contact forms step with outer barrel 44,
The supporting rod 38 is connect with piston 43, and 39 lower end of support valve top connection is provided with shear pin 45, and shear pin 45 is extend into
In piston 43.Spring 49 is arranged with they sup-port valve lower contact 48 in piston 43, and 39 lower end of support valve top connection heads on
Piston 43 is arranged, and the supporting rod 38 is provided with supporting rod pressure cap 40 with 43 junction of piston, and supporting rod pressure cap 40 is by opening
Slot tapered end holding screw 41 is fixedly connected with piston 43.43 lower end of piston is connect with outer barrel 44, and piston 43 passes through setting
Snap ring 47 is connect with outer barrel 44, is sealed by O-ring seals 42 between the support valve top connection 39 and piston 43, outer barrel 44
It is sealed by O-ring seals 46 between piston 43, it is close by O-ring seals 50 between outer barrel 44 and support valve lower contact 48
Envelope.
The horizontal well ball seat includes main body 51, and 51 inside of main body is in hollow setting, is arranged in the space in main body 51
There are fuse 56 and baffle 52, the baffle 52 to be threadedly coupled with main body 51, the fuse 56 passes through shear pin with main body 51
57 connections.It is sealed by O-ring seals 55 between the fuse 56 and main body 51.56 one end of fuse heads on 51 inside one of main body
End, one end of baffle 52 head on the other end inside main body 51, spring 53 and valve ball 54 are provided between baffle 52 and fuse 56,
Spring 53 is arranged on one side on baffle 52, and 53 another side of spring heads on valve ball 54 and fixes valve ball 54, is provided on baffle 52
Liquid channel.
It is supported when being gone into the well using the utility model below valve connection oil well pump standing valve, supporting rod 38 jacks up standing valve
Steel ball, the shear pin on outer barrel 44 is disconnected, and the inlet opening feed liquor of support valve top connection 39 and 44 junction of outer barrel, hydraulic pressure makes supporting rod
38 and 43 downlink of piston, shear pin 45 is disconnected, and the compression of spring 49 makes snap ring 47 be engaged with the step in lower contact 48, sets completion；
By packer down toward projected depth when packer setting, the liquid feeding pressure out of oil pipe, hydraulic pressure makes upper piston 11 and lower work
15 downlinks are filled in, 5 downlink of lock tube is pushed to compress packing element assembly, slips 37 stretches out anchor sleeve, and lock tube 5 moves downward, and lock ring 8 is not
Movement, it is locked with lock ring 8 when lock tube 5 moves at lock ring 8, lock tube 5 is locked with lock ring 8, and packing element assembly cannot bullet
It returns, forms sealing oil sets annular space, complete to set；
When suppressing work in horizontal well, valve ball 54 makes to form sealing space in horizontal well ball seat with fuse 56, can make oil pipe
Disadvantage pressure ensures setting for upper packer；When building the pressure to certain value, shear pin 57 is cut, under main body 53, valve ball 54, fuse 56
Row, horizontal well ball seat channel are opened.Spring 53 plays fixed function to valve ball 54, ensures that horizontal well ball seat is applied in horizontal well.
After the completion of packer setting, annular space is suppressed, 38 downlink of piston driving supporting rod, standing valve return.
Connector 1 is put on when deblocking packer, deblocking pull rod 6 is driven to move, cuts deblocking shear pin 9 so that deblocking pull rod 6
Relative displacement is generated with upper piston 11；Closing piece 36 unlocks, while the retaining mechanism lock ring 8 of packer is detached with lock tube 5, packer
Realize deblocking.The deblocking load of this structure packer is small, and multistage can realize the gradually deblocking of packer when using.
Finally it should be noted that:Above example is only to illustrate the technical solution of the utility model rather than limits it
System；Although the utility model is described in detail with reference to preferred embodiment, those of ordinary skill in the art should
Understand：It can still modify to specific embodiment of the present utility model or some technical characteristics are equally replaced
It changes；Without departing from the spirit of technical solutions of the utility model, should all cover in the claimed technical solution of the utility model
In range.
Claims (10)
1. a kind of water plugging of horizontal well tubing string is suitable for oil field pumping well, including packer, support valve and horizontal well ball seat, support
The lower part of valve and oil well pump connects, and support valve connects packer by oil pipe, and packer connects horizontal well ball seat by oil pipe,
It is characterized in that,
The packer includes top connection (1), and top connection (1) is threadedly coupled with deblocking pull rod (6), and simultaneously and connector sleeve
(33) it connects, is provided on connector sleeve (33) and sets shear pin (4), set shear pin (4) and be deep into top connection (1), connector sleeve
(33) it is located at the outside of deblocking pull rod (6), connector sleeve (33) connects upper piston cylinder (7) by lock tube (5), and lock tube is arranged on (5)
There are internal thread, upper piston cylinder (7) to connect lower piston cylinder (14), lower piston cylinder (14) connects packing element assembly, packing element assembly connection pressure
Cap (22), pressure cap (22) connect slips (27) by upper cone (24), and the other end of slips (27) is connect with lower cone (29), under
Cone (29) connects lower contact (32) by tapered end holding screw (30) of slotting；The deblocking pull rod (6) passes through pressure ring (34)
It is connect with upper piston (11), pressure ring (34) is provided with wedging ring (35), closing piece (36) and lock ring with upper piston (11) junction
(8), external screw thread is arranged on lock ring (8) to connect with the screw-internal thread fit on lock tube (5), upper piston is provided with deblocking shear pin on (11)
(9), deblocking shear pin (9) is extend into deblocking pull rod (6), and upper piston (11) connects lower piston (15), upper piston (11) and meanwhile with
It unseals pull rod (6) to connect, lower piston (15) connects central tube (17), and central tube (17) bottom is connect with lower contact (32)；
The support valve includes supporting rod (38), and support valve top connection (39) is equipped with outside supporting rod (38), is supported on valve
Connector (39) outer shroud is cased with outer barrel (44), and support valve top connection (39) is tightly connected with outer barrel (44), and the junction first half is close
Envelope lower half has the gap, and sealing position is provided with inlet opening, and shear pin is arranged on outer barrel (44), and shear pin extend on support valve and connects
The sealing of head (39) and outer barrel (44) junction, outer barrel (44) other end setting support valve lower contact (48), the support
Bar (38) is connect with piston (43), piston (43) and they sup-port valve lower contact (48) setting spring (49), lower contact (48)
Upper end forms step with outer barrel (44), and described top connection of support valve (39) lower end heads on piston (43) setting, the work
Plug (43) lower end is connect with outer barrel (44), and piston (43) is connect by the way that snap ring (47) is arranged with outer barrel (44)；
The horizontal well ball seat includes main body (51), is in hollow setting inside main body (51), is set in the space in main body (51)
It is equipped with fuse (56) and baffle (52), fuse (56) one end heads on the internal one end of main body (51), and one end of baffle (52) heads on master
The internal other end of body (51), is provided with spring (53) and valve ball (54), spring (53) one between baffle (52) and fuse (56)
Side is arranged on baffle (52), and spring (53) another side heads on valve ball (54) and fixes valve ball (54), and baffle is provided on (52)
Cross liquid channel.
2. water plugging of horizontal well tubing string according to claim 1, which is characterized in that the top connection (1) is logical with deblocking pull rod (6)
It is fixed to cross fluting tapered end holding screw (3), and seal by O-ring seals (2).
3. water plugging of horizontal well tubing string according to claim 1, which is characterized in that be provided with slip sleeve on the slips (27)
(25), slips (27) is internally provided with slips compression spring (28).
4. water plugging of horizontal well tubing string according to claim 1, which is characterized in that the packing element assembly includes end packing element (18)
Be located at the both ends of middle packing element (20) with middle packing element (20), end packing element (18), end packing element (18) and middle packing element (20) centre be arranged every
Ring (19).
5. water plugging of horizontal well tubing string according to claim 1, which is characterized in that the packing element assembly and central tube (17) it
Between be provided with outer tube (21), outer tube (21) one end heads on lower piston cylinder (14), and the other end sticks pressure cap (22) and simultaneously and epicone
Body (24) connects, and outer tube (21) is sealed with lower piston cylinder (14) by O-ring seals (37).
6. water plugging of horizontal well tubing string according to claim 1, which is characterized in that the supporting rod (38) connects with piston (43)
The place of connecing is provided with supporting rod pressure cap (40), and supporting rod pressure cap (40) is fixed with piston (43) by tapered end holding screw (41) of slotting
Connection.
7. water plugging of horizontal well tubing string according to claim 1, which is characterized in that described top connection of support valve (39) lower end is set
It is equipped with shear pin (45), shear pin (45) is extend into piston (43).
8. water plugging of horizontal well tubing string according to claim 1, which is characterized in that the support valve top connection (39) and piston
(43) it is sealed, is sealed by O-ring seals (46) between outer barrel (44) and piston (43), outside by O-ring seals (42) between
It is sealed by O-ring seals (50) between cylinder (44) and support valve lower contact (48).
9. water plugging of horizontal well tubing string according to claim 1, which is characterized in that the baffle (52) and main body (51) screw thread
Connection, the fuse (56) are connect with main body (51) by shear pin (57).
10. water plugging of horizontal well tubing string according to claim 1, which is characterized in that the fuse (56) and main body (51) it
Between pass through O-ring seals (55) seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721798315.0U CN207813557U (en) | 2017-12-21 | 2017-12-21 | A kind of water plugging of horizontal well tubing string |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721798315.0U CN207813557U (en) | 2017-12-21 | 2017-12-21 | A kind of water plugging of horizontal well tubing string |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207813557U true CN207813557U (en) | 2018-09-04 |
Family
ID=63333081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721798315.0U Active CN207813557U (en) | 2017-12-21 | 2017-12-21 | A kind of water plugging of horizontal well tubing string |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207813557U (en) |
-
2017
- 2017-12-21 CN CN201721798315.0U patent/CN207813557U/en active Active
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