CN217999543U - Setting device of offshore oilfield cable-passing packer - Google Patents
Setting device of offshore oilfield cable-passing packer Download PDFInfo
- Publication number
- CN217999543U CN217999543U CN202222231137.0U CN202222231137U CN217999543U CN 217999543 U CN217999543 U CN 217999543U CN 202222231137 U CN202222231137 U CN 202222231137U CN 217999543 U CN217999543 U CN 217999543U
- Authority
- CN
- China
- Prior art keywords
- ball
- joint
- wall
- catcher
- seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The utility model relates to a setting device of a cable packer used in offshore oil field, which comprises a sleeve and an oil pipe, wherein a ball catcher is arranged on a well mouth, a safety valve, a cable packer, a full-bore setting ball seat, a circulating sliding sleeve and a Y joint are sequentially arranged on the oil pipe from top to bottom, one end of the bottom of the Y joint is connected with a perforated pipe, and the other end of the bottom of the Y joint is connected with an electric pump; the ball catcher comprises a ball catcher upper joint, a ball catcher outer cylinder and a ball catcher lower joint which are sequentially connected from top to bottom, an overflowing baffle is arranged at the bottom of the ball catcher upper joint, and a one-way interception component is arranged in the ball catcher outer cylinder at the top of the ball catcher lower joint; the full-bore seat sealing ball seat comprises a ball seat upper joint and a ball seat lower joint, an elastic sealing assembly is arranged in the ball seat upper joint, and a plurality of shearing pins are arranged between the elastic sealing assembly and the inner wall of the ball seat upper joint; and the setting ball is thrown into the elastic sealing assembly of the full-bore setting ball seat from the wellhead. The utility model discloses can be high-efficient, convenient realization offshore oil field cross setting of cable packer.
Description
Technical Field
The utility model relates to an oil recovery engineering's technical field especially relates to a marine oil field crosses setting device of cable packer.
Background
In the production operation of offshore oil fields, the cable-passing packer is a common downhole tool and has a wide application range. At present, the cable crossing packer of the offshore oilfield is mainly realized by a setting packer through throwing and fishing steel wires, and the setting step is as follows: after the cable-passing packer is put in place, the packer is delivered to a position of the landing nipple below the cable-passing packer by a steel wire and a delivery tool, an oil pipe channel is blocked, and then the steel wire and the delivery tool are lifted out; pressing the oil pipe at the wellhead, and setting a production packer; the steel wire carries the fishing tool to go into the well, and the blanking plug is fished out of the shaft, so that the whole well can normally produce.
Rely on the steel wire to throw and drag for blanking plug and sit and seal cable packer, have following problem: 1. the delivery and fishing of the blanking plug are realized by steel wire operation, thereby increasing additional operation cost; 2. when the steel wire works, the wellhead operation space is occupied, and due to the shortage of the space of the offshore oil platform, other operations cannot be carried out while the steel wire works are carried out, and the platform operation window is occupied. 3. In order to ensure effective matching with the blanking plug, a 1-2mm step must exist in the landing nipple, so that the tubular column has necking to a certain degree, and the productivity of the whole well is influenced.
In offshore oil fields, the over-cable packer is widely applied, the problems are small, but the accumulated amount of the over-cable packer still has great influence, especially the occupation of an operation window brings heavy production burden to an operation company.
Disclosure of Invention
The utility model discloses aim at solving prior art's not enough, and provide a marine oil field crosses setting device of cable packer.
The utility model discloses a realize above-mentioned purpose, adopt following technical scheme:
a setting device of an offshore oilfield cable passing packer comprises a casing and an oil pipe arranged in the casing, wherein a ball catcher is installed on a wellhead at the top of the casing, a safety valve, the cable passing packer, a full-bore setting ball seat, a circulating sliding sleeve and a Y joint are sequentially installed on the oil pipe from top to bottom, one end of the bottom of the Y joint is connected with a perforated pipe, and the other end of the bottom of the Y joint is connected with an electric pump;
the ball catcher comprises a ball catcher upper joint, a ball catcher outer cylinder and a ball catcher lower joint which are sequentially connected from top to bottom, an overflowing baffle is arranged at the bottom of the ball catcher upper joint, and a one-way interception component is arranged in the ball catcher outer cylinder at the top of the ball catcher lower joint;
the full-bore seat sealing ball seat comprises an upper ball seat joint and a lower ball seat joint which are connected up and down, an elastic sealing assembly is arranged in the upper ball seat joint, and a plurality of shearing pins are circumferentially arranged between the lower end of the outer side wall of the elastic sealing assembly and the inner wall of the upper ball seat joint;
and the setting ball is thrown into the elastic sealing assembly of the full-bore setting ball seat from the wellhead.
The one-way interception component comprises a valve seat arranged at the top of the lower connector of the ball catcher, an elastic separation blade is arranged in the valve seat inner wall and provided with a mounting groove, the mounting groove is internally provided with an elastic separation blade through a pin shaft, one end of the elastic separation blade extends into the inner cavity of the lower connector of the ball catcher, the pin shaft is provided with a V-shaped torsion spring, and one end of the V-shaped torsion spring is abutted against the inner wall of the mounting groove.
The overflowing baffle is provided with a plurality of overflowing holes.
The inner cavity of the outer barrel of the ball catcher forms a ball storage cabin between the overflowing baffle and the one-way interception component.
The lower end of the inner wall of the upper joint of the ball catcher is provided with an annular mounting groove, and the overflowing baffle is clamped in the annular mounting groove.
An upper sealing ring is arranged between the outer wall of the upper joint of the ball catcher and the inner wall of the outer cylinder of the ball catcher, and a lower sealing ring is arranged between the outer wall of the lower joint of the ball catcher and the inner wall of the outer cylinder of the ball catcher.
The elastic sealing assembly comprises a ring cylinder, a plurality of elastic sealing claws are arranged on the circumference of the top of the ring cylinder, a vertical groove is reserved between every two adjacent elastic sealing claws, elastic shoulders are arranged at the upper ends of the elastic sealing claws, the shearing pin is arranged between the outer wall of the ring cylinder and the inner wall of the upper joint of the ball seat, the elastic shoulders are tightly attached to the inner wall of the upper joint of the ball seat after being tightened, an annular groove is formed in the upper part of the inner wall of the upper joint of the ball seat and below the elastic shoulders, and a positioning shoulder for bearing the bottom of the ring cylinder is arranged inside the lower joint of the ball seat.
And a sealing ring is arranged between the outer wall of the upper joint of the ball seat and the inner wall of the lower joint of the ball seat.
The ball catcher is in threaded connection with the wellhead, and the wellhead is in threaded connection with the oil pipe.
The beneficial effects of the utility model are that: the utility model discloses set and seal cable packer need not the steel wire operation, through throwing into the setting ball pump and sending to full latus rectum setting ball seat position, beat and set and seal; the setting ball is taken out without depending on steel wire operation, the setting ball is taken out through reverse circulation operation and is captured by a ball catcher at a well mouth, and the pressing setting and the reverse circulation well washing belong to necessary operation steps, so that the additional steel wire operation is not needed, the operation cost and time are reduced, and the well mouth is not occupied; the inner diameter of the full-bore setting plug after setting is automatically expanded, the sealing surface of the ball seat disappears, the full bore is formed in the whole tool, and reducing and throttling cannot be generated; the elastic blocking piece, the pin shaft and the V-shaped torsion spring inside the ball catcher jointly form a one-way movement mechanism, the seat sealing ball is backwashed to a well mouth and is automatically captured, and the seat sealing ball cannot flow back to a shaft due to the fact that backwashing operation is stopped.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a schematic view of the ball trap;
FIG. 3 is a schematic view of a full bore seating ball seat;
FIG. 4 is a schematic view of the construction of the elastomeric seal assembly;
in the figure: 1-a ball catcher; 2-well head; 3-oil pipe; 4-safety valve; 5-cable-through packer; 6-a full-bore setting ball seat; 7-circulating the sliding sleeve; an 8-Y linker; 9-a perforated pipe; 10-an electric pump; 11-setting a ball; 12-a sleeve;
101-ball catcher upper joint; 102-a ball trap outer cylinder; 103-ball catcher lower joint; 104-an overflow baffle; 105-a valve seat; 106-mounting grooves; 107-pin shaft; 108-an elastic baffle; 109-V-shaped torsion spring; 1010-an overflow hole; 1011-ball storage cabin; 1012-upper sealing ring; 1013-lower sealing ring;
601-ball seat top connection; 602-a ball seat lower joint; 603-a resilient seal assembly; 604-shear pins; 605-an annular groove; 606-a positioning shoulder; 607-a sealing ring;
6031-ring cylinder; 6032-resilient sealing jaws; 6033-vertical groove; 6034-elastic shoulder;
the following detailed description will be made in conjunction with embodiments of the present invention with reference to the accompanying drawings.
Detailed Description
The invention will be further described with reference to the following drawings and examples:
as shown in fig. 1 to 4, the setting device for the cable-passing packer of the offshore oilfield comprises a casing 12 and an oil pipe 3 arranged in the casing 12, wherein a ball trap 1 is installed on a wellhead 2 at the top of the casing 12, a safety valve 4, a cable-passing packer 5, a full-diameter seat sealing ball seat 6, a circulating sliding sleeve 7 and a Y joint 8 are sequentially installed on the oil pipe 3 from top to bottom, one end of the bottom of the Y joint 8 is connected with a perforated pipe 9, and the other end of the bottom of the Y joint 8 is connected with an electric pump 10;
the ball catcher 1 comprises a ball catcher upper joint 101, a ball catcher outer cylinder 102 and a ball catcher lower joint 103 which are sequentially connected from top to bottom, an overflowing baffle plate 104 is arranged at the bottom of the ball catcher upper joint 101, and a one-way interception component is arranged in the ball catcher outer cylinder 102 at the top of the ball catcher lower joint 103;
the full-bore setting ball seat 6 comprises an upper ball seat joint 601 and a lower ball seat joint 602 which are connected up and down, an elastic sealing component 603 is arranged in the upper ball seat joint 601, and a plurality of shear pins 604 are circumferentially arranged between the lower end of the outer side wall of the elastic sealing component 603 and the inner wall of the upper ball seat joint 601;
also included is a setting ball 11 launched from the wellhead 2 into a resilient seal assembly 603 of a full bore setting ball seat 6.
The average density of the setting ball 11 is 1.0g/cm 3 ～3.0g/cm 3 Including but not limited to PTFE, PEEK, resin, etc.
The setting method of the cable passing packer 5 comprises the following steps: directly delivering a setting ball 11 from a wellhead 2, pumping the setting ball 11 to the position of a full-bore setting ball seat 6, matching with the full-bore setting ball seat to plug a central channel of an oil pipe 3, and pressing a setting cable packer 5 through the oil pipe 3 at the wellhead; the flushing operation with clean water driven through the casing 12 displaces the setting ball 11 back out of the wellbore.
The one-way interception component comprises a valve seat 105 arranged at the top of the ball catcher lower joint 103, the inner wall of the valve seat 105 is provided with a mounting groove 106, an elastic blocking piece 108 is arranged in the mounting groove 106 through a pin shaft 107, one end of the elastic blocking piece 108 extends into the inner cavity of the ball catcher lower joint 103, the pin shaft 107 is provided with a V-shaped torsion spring 109, and one end of the V-shaped torsion spring 109 abuts against the inner wall of the mounting groove 106.
The elastic baffle plate 108 is connected with the valve seat 105 through a pin 107 and is pressed by a V-shaped torsion spring 109 to form a one-way movement mechanism. When the external force is applied upwards, the elastic blocking piece 108 can compress the V-shaped torsion spring 109 to rotate upwards, after the external force disappears, the elastic blocking piece 108 returns to a normal position under the pushing of the V-shaped torsion spring 109, and when the external force is applied downwards, the elastic blocking piece 108 is blocked by the valve seat 105 and cannot turn downwards.
The flow-passing baffle 104 is provided with a plurality of flow-passing holes 1010.
The inner cavity of the outer cylinder 102 of the ball catcher forms a ball storage cabin 1011 between the overflowing baffle 104 and the one-way interception component.
The lower end of the inner wall of the upper joint 101 of the ball catcher is provided with an annular mounting groove, and the overflowing baffle plate 104 is clamped in the annular mounting groove.
An upper sealing ring 1012 is arranged between the outer wall of the ball catcher upper joint 101 and the inner wall of the ball catcher outer cylinder 102, and a lower sealing ring 1013 is arranged between the outer wall of the ball catcher lower joint 103 and the inner wall of the ball catcher outer cylinder 102.
Under normal conditions, the elastic sealing claw 6032 is tightened and then inserted into the upper joint 601, at the moment, the vertical groove 6033 on the elastic sealing claw 6032 is closed, and the elastic shoulder 6034 is tightly attached to the inner wall of the upper joint 601 and is closed to form a complete circular ball seat. The flexible sealing jaw 6032 is naturally in an expanded state with the flexible shoulder 6034, and only when constrained by the inner wall of the upper connector 601 will the flexible sealing jaw close to form a complete circular ball seat. After the setting operation is finished, the pressure is continuously applied, the shearing pin 604 is broken, the elastic shoulder 6034 leaves the inner wall of the upper joint 601 and enters the annular groove 605, and the elastic sealing claw 6032 is in an expansion state after losing the constraint of the inner wall of the upper joint 601, so that the full drift diameter is realized.
A sealing ring 607 is arranged between the outer wall of the ball seat upper connector 601 and the inner wall of the ball seat lower connector 602.
The ball catcher 1 is in threaded connection with the well head 2, and the well head 2 is in threaded connection with the oil pipe 3.
The utility model discloses an operation flow does:
setting operation: when setting, directly delivering a light setting ball 11 at the wellhead 2, pumping the setting ball 11 to the position of the full-bore setting ball seat 6 and matching with the full-bore setting ball seat to plug the central passage of the oil pipe 3; a cable packer 5 is pressed and set on a well mouth 2 through an oil pipe 3; after setting operation is completed, the pump pressure is increased by 500psi to continue to be pressed, so that the shear pin 604 of the full-bore setting ball seat 6 is cut off, the elastic sealing claw 6032 expands in the radial direction to form a full bore, and the setting ball 11 falls into the well.
Ball fetching operation (reverse circulation): clean water is pumped in a sleeve 12, reverse circulation well washing operation is started, the density of the setting ball 11 is low, the setting ball 11 moves from bottom to top to a well mouth 2 under the pushing of well washing liquid, the well mouth 2 is captured by the ball capturing device 1, a one-way migration mechanism is arranged inside the ball capturing device 1, the setting ball 11 pushes an elastic baffle piece 108 under the action of the well washing liquid, the elastic baffle piece 108 compresses a V-shaped torsion spring 109 to rotate upwards to open a channel, the setting ball 11 smoothly enters a ball storage cabin 1011 and continues to move upwards under the pushing of liquid until the position of an overflowing baffle 104, the liquid flows out from an overflowing hole 1010, and the setting ball 11 is blocked by the overflowing baffle 104. When the well washing operation is stopped, the elastic blocking piece 108 rotates and returns in the opposite direction under the pushing of the V-shaped torsion spring 109 and is clamped by the valve seat 105, the returning elastic blocking piece 108 blocks the returning of the setting ball 11, the setting ball 11 is trapped in the ball storage cabin 1011, and the setting ball 11 cannot flow back to the well bore.
The utility model has the advantages of it is following:
the setting cable packer 5 does not need steel wire operation, and is pumped to the position of a full-bore setting ball seat 6 by throwing a setting ball 11 to perform setting; the seat sealing ball 11 is taken out without depending on steel wire operation, the seat sealing ball 11 is taken out through reverse circulation operation and is captured by the ball catcher 1 of the well mouth 2, the pressing seat sealing and the reverse circulation well washing all belong to necessary operation steps, the steel wire operation is not required to be additionally added, the operation cost and time are reduced, and the well mouth is not required to be occupied.
The inner diameter of the full-bore setting plug after setting is automatically expanded, the sealing surface of the ball seat disappears, the full bore is formed inside the whole tool, and the reducing and throttling cannot be generated.
The elastic baffle 108, the pin 107 and the V-shaped torsion spring 109 in the ball catcher 1 form a one-way movement mechanism together, the setting ball 11 is backwashed until the well head 2 is automatically captured, and the setting ball cannot flow back into a shaft because of the stop of backwashing operation.
The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above embodiments, and various improvements made by the method concept and technical solution of the present invention or directly applied to other occasions without improvement are all within the protection scope of the present invention.
Claims (9)
1. A setting device of an offshore oilfield cable passing packer is characterized by comprising a sleeve (12) and an oil pipe (3) arranged in the sleeve (12), wherein a ball catching device (1) is installed on a wellhead (2) at the top of the sleeve (12), a safety valve (4), the cable passing packer (5), a full-bore seat sealing ball seat (6), a circulating sliding sleeve (7) and a Y joint (8) are sequentially installed on the oil pipe (3) from top to bottom, one end of the bottom of the Y joint (8) is connected with a perforated pipe (9), and the other end of the bottom of the Y joint (8) is connected with an electric pump (10);
the ball catcher (1) comprises a ball catcher upper joint (101), a ball catcher outer cylinder (102) and a ball catcher lower joint (103) which are sequentially connected from top to bottom, wherein an overflowing baffle (104) is installed at the bottom of the ball catcher upper joint (101), and a one-way interception component is arranged in the ball catcher outer cylinder (102) at the top of the ball catcher lower joint (103);
the full-bore setting ball seat (6) comprises an upper ball seat joint (601) and a lower ball seat joint (602) which are connected up and down, an elastic sealing component (603) is arranged in the upper ball seat joint (601), and a plurality of shear pins (604) are circumferentially arranged between the lower end of the outer side wall of the elastic sealing component (603) and the inner wall of the upper ball seat joint (601);
the well is characterized by further comprising a setting ball (11) thrown into an elastic sealing assembly (603) of the full-bore setting ball seat (6) from the well head (2).
2. The setting device of the offshore oilfield cable-passing packer according to claim 1, wherein the one-way interception component comprises a valve seat (105) arranged at the top of the ball catcher lower joint (103), an installation groove (106) is formed in the inner wall of the valve seat (105), an elastic blocking piece (108) is installed in the installation groove (106) through a pin shaft (107), one end of the elastic blocking piece (108) extends into an inner cavity of the ball catcher lower joint (103), a V-shaped torsion spring (109) is arranged on the pin shaft (107), and one end of the V-shaped torsion spring (109) abuts against the inner wall of the installation groove (106).
3. The setting device of the offshore oilfield cable passing packer as defined by claim 2, wherein the flow-passing baffle (104) is provided with a plurality of flow-passing holes (1010).
4. The setting device for the offshore oilfield over-cable packer as recited in claim 3, wherein the inner cavity of the ball trap outer cylinder (102) forms a ball storage chamber (1011) between the overflow baffle (104) and the one-way interception component.
5. The setting device for the over-cable packer in the offshore oilfield according to claim 4, wherein an annular mounting groove is formed in the lower end of the inner wall of the ball catcher upper joint (101), and the overflowing baffle plate (104) is clamped in the annular mounting groove.
6. The setting device for the offshore oilfield wireline packer as recited in claim 5, wherein an upper seal ring (1012) is disposed between an outer wall of the ball catcher upper joint (101) and an inner wall of the ball catcher outer cylinder (102), and a lower seal ring (1013) is disposed between an outer wall of the ball catcher lower joint (103) and the inner wall of the ball catcher outer cylinder (102).
7. The setting device of the offshore oilfield wireline packer according to claim 1, wherein the elastic sealing assembly (603) comprises a ring barrel (6031), a plurality of elastic sealing claws (6032) are arranged on the circumference of the top of the ring barrel (6031), vertical grooves (6033) are reserved between every two adjacent elastic sealing claws (6032), elastic shoulders (6034) are arranged at the upper ends of the elastic sealing claws (6032), the shearing pins (604) are arranged between the outer wall of the ring barrel (6031) and the inner wall of the ball seat upper joint (601), the elastic shoulders (6034) are tightly attached to the inner wall of the ball seat upper joint (601) after being tightened, annular grooves (605) are arranged above the shearing shoulders (604) on the inner wall of the ball seat upper joint (601), and positioning shoulders (606) for bottom connection of the ring barrel (6031) are arranged inside the ball seat lower joint (602).
8. The setting device of the offshore oilfield cable packer as claimed in claim 7, wherein a sealing ring (607) is arranged between the outer wall of the ball seat upper joint (601) and the inner wall of the ball seat lower joint (602).
9. The setting device of the offshore oilfield cable-passing packer as defined by claim 8, wherein the ball catcher (1) is in threaded connection with the wellhead (2), and the wellhead (2) is in threaded connection with the tubing (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222231137.0U CN217999543U (en) | 2022-08-24 | 2022-08-24 | Setting device of offshore oilfield cable-passing packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222231137.0U CN217999543U (en) | 2022-08-24 | 2022-08-24 | Setting device of offshore oilfield cable-passing packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217999543U true CN217999543U (en) | 2022-12-09 |
Family
ID=84325709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222231137.0U Active CN217999543U (en) | 2022-08-24 | 2022-08-24 | Setting device of offshore oilfield cable-passing packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217999543U (en) |
-
2022
- 2022-08-24 CN CN202222231137.0U patent/CN217999543U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6050340A (en) | Downhole pump installation/removal system and method | |
| US4738599A (en) | Well pump | |
| US6155792A (en) | Wireline retrievable oilwell pumping system | |
| CN107893644B (en) | Underground hydraulic control device | |
| CN103388469A (en) | Filling tool | |
| CN210087290U (en) | Packer for closed pipe column | |
| CN109267978B (en) | Separate injection pipe column | |
| CN111594094B (en) | Penetrate stifled two-way shut-in well device of joint action | |
| CN217999543U (en) | Setting device of offshore oilfield cable-passing packer | |
| CN116816308A (en) | Oil-free pipe paraffin removal lifting device for small-bore shale oil well | |
| US11041365B2 (en) | Annular controlled safety valve system and method | |
| RU2290489C2 (en) | Mechanical packer for well with one or several formations (variants) | |
| CN217925812U (en) | Horizontal well sectional profile control pipe column system and sectional plugging assembly thereof | |
| CN102628348B (en) | Tubular tubing float valve | |
| CN209780833U (en) | Separate and adopt packer | |
| CN112282709B (en) | Capturing device and capturing method for pump core of jet pump | |
| CN116964295A (en) | Cable plugging system | |
| CN111119793B (en) | Water-gas alternative injection pipe column and operation method | |
| CN209908452U (en) | Separate and adopt packer | |
| CN208816087U (en) | A kind of Operating Pressure blowout prevention valve | |
| RU72715U1 (en) | DEVICE FOR CEMENTING A TAIL IN A WELL | |
| RU2810782C1 (en) | Check valve | |
| CN111927391B (en) | Safety valve used in oil pipe and working method thereof | |
| CN109578256B (en) | Sand-proof oil pump | |
| CN211524789U (en) | Two-stage three-section water injection string operating under pressure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |