CN212359694U - Sleeve pipe plastic head - Google Patents
Sleeve pipe plastic head Download PDFInfo
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- CN212359694U CN212359694U CN202021540947.9U CN202021540947U CN212359694U CN 212359694 U CN212359694 U CN 212359694U CN 202021540947 U CN202021540947 U CN 202021540947U CN 212359694 U CN212359694 U CN 212359694U
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Abstract
The sleeve shaping head comprises a shaping head rod core; the front end of the shaping head rod core is sleeved with a cylindrical shaping sleeve; the shaping sleeve is formed by combining a multi-petal shaping block; each shaping block is axially limited on the shaping head rod core through a connecting piece; the connector may be broken to release the swage block when the swage unblocks the swage head by pulling it back; one part of the shaping blocks A in the multi-petal shaping blocks are respectively connected with the shaping head rod core through short connecting ropes, and the other part of the shaping blocks B are respectively connected with the shaping head rod core through long connecting ropes, so that when the shaping heads are unlocked, the shaping sleeves are quickly disassembled by generating axial relative displacement among the petal shaping blocks; the part of the disintegrated shaping head arranged outside the shaping head cylinder sleeve is split into a front section, a middle section and a rear section, the front section is a shaping block B connected with the long connecting rope, the middle section is a shaping block A connected with the short connecting rope, and the rear section is a shaping head rod core. The utility model provides a sleeve pipe plastic head plastic is effectual, the undergauge scope is big, the unfreezing ability is strong.
Description
Technical Field
The utility model belongs to deformation sleeve pipe restores the field, specifically, relates to a sleeve pipe plastic head.
Background
In the middle and later stages of development of oil fields, the casing is damaged by deformation and the like due to the comprehensive influence of factors such as engineering technology (water injection, acid fracturing and the like), geological conditions, self materials and the like. The deformation of the casing can cause the results of imperfect injection and production system, great reduction of yield and the like, seriously affect the production of oil fields and cause great economic loss. At present, when a deformed casing is repaired and the existing deformed casing shaper is adopted for shaping, a deformed section of the casing can rebound after a shaping head passes through the deformed section, and the shaping head is easy to clamp.
Disclosure of Invention
The present invention aims to overcome the above disadvantages of the prior art and provide a casing pipe reshaping head with good reshaping effect, large diameter reducing range and strong releasing capacity.
In order to achieve the above object, the utility model adopts the following technical scheme:
the utility model comprises a shaping head rod core; the rear end of the shaping head rod core is connected with a power source which provides power for the shaping head during shaping, and the front end of the shaping head rod core is sleeved with a cylindrical shaping sleeve.
The shaping sleeve is formed by combining a multi-petal shaping block; each shaping block is axially limited on the shaping head rod core through a connecting piece; the connector may be broken to release the swage block when the swage unblocks the swage head by pulling it back; one part of the shaping blocks A in the multi-petal shaping blocks are respectively connected with the shaping head rod core through short connecting ropes, and the other part of the shaping blocks B are respectively connected with the shaping head rod core through long connecting ropes, so that when the shaping heads are unlocked, the shaping sleeves are quickly disassembled by generating axial relative displacement among the petal shaping blocks; the shaping head is split into a front section, a middle section and a rear section after disassembly, the front section is all shaping blocks B connected with the long connecting rope, the middle section is all shaping blocks A connected with the short connecting rope, and the rear section is a shaping head rod core.
One end of the short connecting rope is limited in a limiting groove (T-shaped groove) on the shaping head rod core and can slide along the limiting groove (T-shaped groove), and the other end of the short connecting rope is connected with the shaping block A; one end of the long connecting rope is connected with the shaping head rod core, and the other end of the long connecting rope is connected with the shaping block B; and a wire groove used for accommodating the long connecting rope during assembly is arranged on the shaping block B connected with the long connecting rope.
The shaping head rod core is provided with a convex edge, and the convex edge is provided with an annular limiting groove which is used for clamping the rear end of the shaping block to limit the shaping block; the front end of the shaping block is connected with the front end of the shaping head rod core through a connecting strip which can be broken when the sleeve shaper is pulled backwards to unlock the shaping head.
And lubricating grease is coated on the contact part of the outer wall of the shaping head rod core and the shaping block.
The multi-petal shaping block consists of a 3+ n petal shaping block A and a 3+ n petal shaping block B, and each shaping block A is positioned between the two shaping blocks B; and n is more than or equal to 0.
The cross section of the shaping block A is similar to a rectangle, and the cross section of the shaping block B is similar to a sector; each shaping block A is connected with a shaping head rod core through a short connecting rope; each shaping block B is connected with the shaping head rod core through a long connecting rope.
All the short connecting ropes are shorter than the long connecting ropes, and all the long connecting ropes are longer than the short connecting ropes. All the short connecting ropes can be the same in length or different in length. All the long connecting ropes can be the same in length and can also be different in length.
The short connecting rope is a short steel wire rope; the long connecting rope is a long steel wire rope.
During shaping, if the resilience amount of the deformed part of the sleeve is too large, the shaping head is clamped at the deformed part of the sleeve, the lifting force can be increased, the connecting strip of the shaping head is broken, the shaping head can be disassembled into a front part, a middle part and a rear part (a sector block part, a rectangular block part and a shaping head rod core part respectively, and the rectangular block part and the sector block part are connected with the shaping head rod core through a steel wire rope), the radial size of the shaping head is reduced, the unlocking is realized, and the whole set of tool is smoothly put forward. The outer diameter of the shaping head after disassembly is reduced by more than 30 percent compared with the outer diameter of the shaping head before disassembly, thereby realizing large-amplitude diameter reduction, strong jam releasing capability and good effect. The utility model discloses a plastic cover is cylindric and has complete appearance profile before the disintegration, protective case that can be better in the plastic process, the plastic is accomplished the back, and the cover inside pipe wall is more smooth, and the plastic is effectual. And the shaping head parts (shaping blocks and the like) can not move mutually in the normal shaping and lifting processes, and are only disassembled when being clamped, so that the use is more reliable.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a full sectional view of the present invention.
Fig. 3 is a view from direction a of fig. 2.
Fig. 4 is an enlarged view of a portion B of fig. 2.
Fig. 5 is an enlarged view of a portion C of fig. 2.
Fig. 6 is an enlarged view of a portion D of fig. 2.
Fig. 7 is an enlarged view of a portion E of fig. 2.
Fig. 8 is a schematic structural view of a first embodiment of the shaping head core.
Fig. 9 is a schematic structural view of a second embodiment of the shaping head core.
Fig. 10 is a cross-sectional view of a first embodiment of a shaping head core.
Fig. 11 is a view from direction F of fig. 10.
Fig. 12 is a sectional view taken along line G-G of fig. 10.
Fig. 13 is a perspective view of the fan-shaped block.
Fig. 14 is a schematic structural view of a sector block.
Fig. 15 is a view from direction H of fig. 14.
Fig. 16 is a cross-sectional view taken along line I-I of fig. 14.
Fig. 17 is a perspective view of a rectangular block.
Fig. 18 is a schematic structural view of a rectangular block.
Fig. 19 is a J-view of fig. 18.
Fig. 20 is a cross-sectional view taken along line K-K of fig. 18.
Fig. 21 is a first structural schematic diagram of the shaping head after disassembly.
Fig. 22 is a schematic structural diagram of the disassembled shaping head.
Fig. 23 is a schematic view of a usage state of the present invention.
In the figure, 1, an initiator, 2, a combustion chamber, 3, a hydraulic anchor, 4, a primary cylinder sleeve, 41, a first pressure relief hole, 42, a first exhaust hole, 43, a first step part, 44, a second step part, 5, a backpressure adjusting sleeve, 51, a ring groove, 6, a backpressure rod, 61, a middle air passage, 62, a lateral air passage, 7, a first piston rod, 71, a middle air passage, 72, a lateral air passage, 8, a piston return spring, 9, a second piston rod, 91, a middle air passage, 92, a lateral air passage, 10, a secondary cylinder sleeve, 101, an exhaust hole, 111, a shaping head rod core, 112, a positioning screw, 113, a short aluminum jacket, 114, a long steel wire rope, 115, a fan-shaped block, 116, a long aluminum jacket, 117, a short screw, 118, a fan-shaped block connecting strip, 119, a long screw, 1110, a rectangular block connecting strip, 1111, a rectangular block, 1112, a short steel wire rope, 1113, a set screw, 1114, a convex edge, a limit groove, 1116. t type groove, 1117, wire casing, 12, plastic head cylinder sleeve, 121, exhaust hole, 13, sealed cylinder cap, 14, connector.
Detailed Description
In fig. 1, 2 and 3, the detachable shaping head 11 is mainly composed of a shaping head rod core 111, three fan-shaped blocks 115 and three rectangular blocks 1111. The cross section of the fan-shaped block 115 is fan-shaped like, and the cross section of the rectangular block 1111 is rectangular-like. The rectangular block can offset the normal acting force of the sector block to the rectangular block, reduce the pressure of the rectangular block to the shaping head rod core and enable the shaping head rod core to be more easily drawn out when the clamp is released. The rear ends of the sector block and the rectangular block are assembled in an annular limiting groove in the middle of the shaping head rod core; the front end of the sector block is connected with the front end of the shaping head rod core 111 through a sector block connecting strip 118, one end of the sector block connecting strip is connected to the front end face of the sector block through a short screw 117, and the other end of the sector block connecting strip is connected to the front end face of the shaping head rod core through a long screw 119; the front end of the rectangular block is connected with the front end of the shaping head rod core through a rectangular block connecting strip 1110, one end of the rectangular block connecting strip is connected to the front end face of the rectangular block through a short screw, and the other end of the rectangular block connecting strip is connected to the front end face of the shaping head rod core through a long screw.
The contact surfaces between the sector block and the rectangular block, between the sector block and the shaping head rod core and between the rectangular block and the shaping head rod core need to be ground to improve the surface precision, wipe lubricating grease, reduce the friction coefficient and reduce the friction resistance when the shaping head is disassembled.
In fig. 4 and 5, the long wire rope 114 connects the rear end of the sector block 115 and the front end of the shaping head rod core 111: one end of the long steel wire rope 114 is provided with a short aluminum jacket 113, and the positioning screw 112 compresses the long steel wire rope to block the short aluminum jacket, so that the connection between the long steel wire rope and the sector block is realized; the other end of the long steel wire rope is provided with a long aluminum jacket 116, the long aluminum jacket is provided with a radial hole, a long screw 119 is screwed into the hole of the long aluminum jacket to compress the long steel wire rope and block the short aluminum jacket, so that the connection of the long steel wire rope and the shaping head rod core is realized.
In fig. 6 and 7, a short wire cord 1112 connects the rear end of a rectangular block 1111 to the shaping head core: one end of the short steel wire rope 1112 is provided with a short aluminum jacket 113, and the positioning screw 112 compresses the short steel wire rope to block the short aluminum jacket, so that the short steel wire rope is connected with the rectangular block 1110; the other end of the short steel wire rope provided with the short aluminum jacket is assembled into a T-shaped groove 1116 of the shaping head rod core 111, a set screw 1113 is screwed into the T-shaped groove 1116 to prevent the aluminum jacket from being separated, and the short steel wire rope can move in the groove along with the aluminum jacket to realize the connection of the short steel wire rope and the shaping head rod core.
In fig. 8, the front end of the protruding edge 1114 of the shaping head rod core 111 (embodiment one) has a hexagonal prism structure.
In fig. 9, the front end of the protruding edge 1114 of the shaping head rod core 111 (embodiment two) has a hexagonal frustum-shaped structure with a large rear end and a small front end.
In fig. 10, 11 and 12, the shaping head rod core 111 is provided with a convex edge 1114, and the convex edge 1114 is provided with an annular limiting groove 1115 for clamping with the rear end of the shaping block to limit the shaping block. One end of the short steel wire rope is limited in the T-shaped groove 1116 on the shaping head rod core and can slide along the T-shaped groove 1116, and the other end of the short steel wire rope is connected with the rectangular block.
In fig. 13, 14, 15, 16, the fan-shaped block 115 connected to the long wire rope is provided with a wire slot 1117 for receiving the long wire rope 114 when assembled. The length of the long steel wire rope is larger than that of the sector block wire slot, so that the long steel wire rope is folded and bent to be placed in the wire slot. The sector block 115 has a fan-like cross-section.
In fig. 17, 18, 19 and 20, the rectangular block 1111 has a rectangular-like cross section. The rectangular block can offset the normal acting force of the sector block to the rectangular block, reduce the pressure of the rectangular block to the shaping head rod core and enable the shaping head rod core to be more easily drawn out when the clamp is released.
In fig. 21 and 22, when the detachable shaping head is clamped at the necking position of the sleeve, the lifting force applied to the whole tool can be increased, the fan-shaped block connecting strip and the rectangular block connecting strip are forcibly broken, the detachable shaping head is detached into three parts from back to front, the shaping head rod core 111 is a first part, the three rectangular blocks 1111 form a second part, the first part and the second part are connected by the short steel wire rope 1112, the third part is formed by the three fan-shaped blocks 115, and the first part and the third part are connected by the long steel wire rope 114; the second and third portions are not centrally supported and the radial dimension can be substantially reduced.
In fig. 23, the swage is formed by assembling the swage head with the initiator, hydraulic anchor, and booster mechanism. The rear end of the initiator 1 is in threaded connection with the connector 14, the front end of the initiator 1 is in threaded connection with the combustion chamber 2, the front end of the combustion chamber 2 is in threaded connection with the rear end of the hydraulic anchor 3, and the hydraulic anchor 3 is in threaded connection with the rear end of the primary cylinder sleeve 4; the back pressure adjusting sleeve 5 is positioned in the primary cylinder sleeve 4, the front end of the back pressure adjusting sleeve 5 is in threaded connection with the rear end of the back pressure rod 6, and the front end of the back pressure rod 6 is in threaded connection with the head of the first piston rod 7; the first piston rod 7 is positioned in the first-stage cylinder sleeve 4, a piston return spring 8 is arranged on the first piston rod 7, and the front end of the first piston rod 7 is in threaded connection with the head of the second piston rod 9; the front end of the first-stage cylinder sleeve 4 is in threaded connection with the rear end of the second-stage cylinder sleeve 10; the second piston rod 9 is positioned in the cylinder sleeve 10 of the secondary cylinder, and the front end of the second piston rod 9 is in threaded connection with the head of the shaping head rod core 111; the front end of the secondary cylinder sleeve 10 is in threaded connection with the rear end of the shaping head cylinder sleeve 12; the front end of the shaping head cylinder sleeve 12 is in threaded connection with the sealing cylinder cover 13. Wherein, the first-stage cylinder liner is longest, and the second-stage cylinder liner is as long as the shaping head cylinder liner.
The back pressure rod 6 is provided with a middle air passage 61 for transmitting high-pressure gas generated by the solid propellant forwards, and a lateral air passage 62 for communicating the middle air passage of the back pressure rod with the first-stage cylinder rodless cavity and conducting the high-pressure gas to the first-stage cylinder rodless cavity to push the piston rod I7 to move forwards; the back pressure adjusting sleeve 5 is provided with a flange which is used for being clamped with a first step part 43 in the first-stage cylinder sleeve 4 to limit the back pressure rod 6. The back pressure adjusting sleeve 5 is provided with an annular groove 51 which is convenient to break when the back pressure adjusting sleeve is pressed to reach the design pressure. The depth of the ring groove 51 is set according to the design pressure.
And a second step part 44 for axially limiting the head part of the first piston rod 7 is arranged at the rear part of the first-stage cylinder sleeve 4. And the first piston rod 7 is provided with a middle air passage 71 for transmitting high-pressure gas forwards, and a lateral air passage 72 for communicating the first piston rod middle air passage with the second-stage cylinder rodless cavity and communicating the high-pressure gas to the second-stage rodless cavity to push the second piston rod to move forwards.
The second piston rod 9 is provided with a middle air passage 91 for transmitting high-pressure gas forwards, and a lateral air passage 92 for communicating the second piston rod middle air passage with the rod-free cavity in the shaping head cylinder sleeve and for communicating the high-pressure gas to the rod-free cavity in the shaping head cylinder sleeve to push the shaping head rod core to move forwards.
The first-stage cylinder sleeve 4 is provided with a pressure relief hole 41 and an exhaust hole 42. The secondary cylinder sleeve 10 is provided with an exhaust hole 101. The cylinder liner 12 is provided with a vent hole 121.
The gas pressure that piston rod received transmits back pressure adjusting sleeve 5 through back pressure pole 6 on, receives pulling force increase to the design pulling force when back pressure adjusting sleeve, and back pressure adjusting sleeve will be broken in annular 51 department, and booster mechanism converts gas pressure into the driving force of the plastic head that can disintegrate, and the sleeve pipe plastic begins.
The sealing of the whole set of tools is realized by utilizing an O-shaped sealing ring: between the initiator 1 and the combustion chamber 2; between the hydraulic anchor 3 and the combustion chamber, between the hydraulic anchor 3 and the first-stage cylinder sleeve 4; o-shaped sealing rings are respectively arranged between the head of the first piston rod 7 and the first-stage cylinder sleeve 4, between the first piston rod 7 and the second-stage cylinder sleeve 10, between the head of the second piston rod 9 and the second-stage cylinder sleeve 10, between the head of the shaping head rod core 111 and the shaping head cylinder sleeve 12 and between the sealing cylinder cover 13 and the shaping head rod core 111.
When the utility model is used, solid propellant can be used as a power source; when a well is stuck, the well can be effectively and automatically stuck, and the whole set of tool can be smoothly put forward, and the working principle is as follows:
1. assembling a shaping head with an initiator, a hydraulic anchor and a pressurizing mechanism to form a casing shaper, connecting the shaper to the lowest end of the coiled tubing, and descending the shaper to a deformation part of the underground casing; then, igniting the throwing rod, namely striking the initiator 1 to ignite the solid propellant in the combustion chamber 2 to generate high-energy gas; the high-energy gas reliably presses the fluke of the hydraulic anchor 3 on the wall of the sleeve, the gas pressure is continuously increased, and the back pressure adjusting sleeve is broken; high-energy gas respectively enters the primary cylinder sleeve 4, the secondary cylinder sleeve 10 and the shaping head cylinder sleeve 12 along a central pore passage and a lateral air passage of the back pressure rod 6, the first piston rod 7 and the second piston rod 9, the gas in the cylinders expands to push the piston to move downwards, and the piston drives the shaping head to extrude and expand the deformed part of the sleeve downwards to start sleeve shaping. Taking the case that the sleeve shaper completes 3mm diameter expansion as an example, the outer diameter of the shaping head before disassembly is 110mm, and the outer diameter can be reduced by 35mm after disassembly, thereby realizing diameter reduction by 32%.
2. When taking place the card well, can effectually unfreeze by oneself, propose whole set of instrument smoothly: when the shaping head is clamped, the upward pulling (back pulling) force applied to the sleeve shaper is increased, the fan-shaped block connecting strip and the rectangular block connecting strip are broken by force, the shaping head can be disassembled into a rear part, a middle part and a front part, namely a shaping head rod core part at the rear section, a rectangular block part at the middle section and a fan-shaped block part at the front section in sequence, the radial size of the shaping head is reduced, and the blockage is effectively released.
Claims (6)
1. A cannula sizing head, comprising: comprises a shaping head rod core (111); the front end of the shaping head rod core (111) is sleeved with a cylindrical shaping sleeve;
the shaping sleeve is formed by combining a multi-petal shaping block; each shaping block is axially limited on the shaping head rod core (111) through a connecting piece; the connector can be broken to release the shaping block when the shaping head rod core (111) is pulled backwards to unlock the shaping head;
one part of the shaping blocks A in the multi-petal shaping blocks are respectively connected with the shaping head rod core through short connecting ropes, and the other part of the shaping blocks B are respectively connected with the shaping head rod core through long connecting ropes, so that when the shaping heads are unlocked, the shaping sleeves are quickly disassembled by generating axial relative displacement among the petal shaping blocks;
the shaping head is split into a front section, a middle section and a rear section after disassembly, the front section is all shaping blocks B connected with the long connecting rope, the middle section is all shaping blocks A connected with the short connecting rope, and the rear section is a shaping head rod core (111).
2. The cannula sizing head as recited in claim 1, wherein: one end of the short connecting rope is limited in a limiting groove on the shaping head rod core and can slide along the limiting groove, and the other end of the short connecting rope is connected with the shaping block A;
one end of the long connecting rope is connected with the shaping head rod core, and the other end of the long connecting rope is connected with the shaping block B; a wire groove (1117) used for accommodating the long connecting rope during assembly is arranged on the shaping block B connected with the long connecting rope;
the shaping head rod core (111) is provided with a convex edge (1114), and the convex edge (1114) is provided with an annular limiting groove (1115) which is used for clamping the rear end of the shaping block to limit the shaping block; the front end of the shaping block is connected with the front end of the shaping head rod core (111) through a connecting strip which can be broken when the shaper is pulled backwards to unlock the shaping head.
3. The cannula sizing head as recited in claim 1, wherein: the multi-petal shaping block consists of a 3+ n petal shaping block A and a 3+ n petal shaping block B, and each shaping block A is positioned between the two shaping blocks B; and n is more than or equal to 0.
4. The cannula sizing head as recited in claim 3, wherein: the cross section of the shaping block A is similar to a rectangle, and the cross section of the shaping block B is similar to a sector; each shaping block A is connected with a shaping head rod core through a short connecting rope; each shaping block B is connected with the shaping head rod core through a long connecting rope.
5. The cannula sizing head as in any one of claims 1-4, wherein: all the short connecting ropes are shorter than the long connecting ropes, and all the long connecting ropes are longer than the short connecting ropes.
6. The cannula sizing head as in any one of claims 1-4, wherein: the short connecting rope is a short steel wire rope; the long connecting rope is a long steel wire rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021540947.9U CN212359694U (en) | 2020-07-30 | 2020-07-30 | Sleeve pipe plastic head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021540947.9U CN212359694U (en) | 2020-07-30 | 2020-07-30 | Sleeve pipe plastic head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212359694U true CN212359694U (en) | 2021-01-15 |
Family
ID=74131900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021540947.9U Active CN212359694U (en) | 2020-07-30 | 2020-07-30 | Sleeve pipe plastic head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212359694U (en) |
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2020
- 2020-07-30 CN CN202021540947.9U patent/CN212359694U/en active Active
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