CN212359693U

CN212359693U - Sleeve shaper

Info

Publication number: CN212359693U
Application number: CN202021540937.5U
Authority: CN
Inventors: 张小龙; 慕萍; 贾国胜; 徐肇毅; 罗飞; 匡双龙; 王凯旋
Original assignee: Hubei Sanwo Liyuan Aerospace Science And Technology Co ltd
Current assignee: Hubei Sanwo Liyuan Aerospace Science And Technology Co ltd
Priority date: 2020-07-30
Filing date: 2020-07-30
Publication date: 2021-01-15
Anticipated expiration: 2030-07-30

Abstract

The casing shaper comprises a power mechanism, an anchoring mechanism, a pressurizing mechanism and a shaping head which are sequentially connected; the power mechanism comprises an exploder; a solid propellant is arranged in a combustion chamber connected with the detonator; the supercharging mechanism comprises a plurality of supercharging cylinders which are connected in series in sequence. The front section of a shaping head piston rod of the shaping head extends out of the shaping head cylinder sleeve, and a cylindrical shaping sleeve is sleeved on the shaping head piston rod positioned outside the shaping head cylinder sleeve; the shaping sleeve is formed by combining a plurality of shaping blocks, wherein one part of the shaping block A is connected with a shaping head piston rod through a short connecting rope, and the other part of the shaping block B is connected with the shaping head piston rod through a long connecting rope. The part of the disintegrated shaping head outside the cylinder sleeve of the shaping head is split into a front section, a middle section and a rear section so as to reduce the radial size of the shaper: 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 piston rod. The utility model discloses plastic is efficient, the undergauge scope is big, the unfreezing is effectual.

Description

Sleeve shaper

Technical Field

The utility model belongs to deformation sleeve pipe field of restoreing specifically, relates to a sleeve pipe reshaper.

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 deformed casing repair is carried out, the following problems mainly exist by adopting the existing deformed casing shaper: the shaping repair process of hydraulic shaping and mechanical shaping consumes long time, and the shaping efficiency is low; the deformed section of the sleeve can rebound after the shaping head passes through, and the shaping head is easy to clamp; large-scale auxiliary equipment is needed for realizing the shaping of the sleeve; the hydraulic shaper is good in shaping effect, but hydraulic oil is transferred to the hydraulic shaper through an oil pipe by a pump truck, the whole system has a lot of sealing points, leakage needs to be detected step by step until the leakage is eliminated, and the hydraulic shaper can be used, so that the construction success rate is low.

Disclosure of Invention

The present invention aims to overcome the above disadvantages of the prior art and provide a casing shaper with high shaping efficiency, large diameter reduction range and good unfreezing effect.

In order to achieve the above object, the utility model adopts the following technical scheme:

the utility model comprises a power mechanism, an anchoring mechanism, a pressurizing mechanism and a shaping head which are connected in sequence; the power mechanism comprises an initiator; the rear end of the detonator is connected with a connector for connecting with an oil pipe, and the front end of the detonator is connected with an inlet of the combustion chamber; a solid propellant is arranged in the combustion chamber; the anchoring mechanism comprises a hydraulic anchor connected with the outlet of the combustion chamber; the pressurization mechanism comprises a plurality of pressurization cylinders positioned between the hydraulic anchor and the shaping head; the plurality of supercharging cylinders are sequentially connected in series; and the hydraulic anchor is connected with the first supercharging cylinder.

A first piston rod is arranged in the first supercharging cylinder; the back pressure rod is limited in the first supercharging cylinder by the back pressure adjusting sleeve and is close to one end of the hydraulic anchor; the back pressure adjusting sleeve releases the back pressure rod when the back pressure adjusting sleeve is pressed to reach the design pressure so as to transmit the high-energy gas pressure generated by the combustion of the solid propellant to the shaping head through the piston rods of the boosting cylinders. And the last supercharging cylinder is connected with the shaping head cylinder sleeve.

The shaping head comprises a shaping head piston rod connected with a piston rod of the last booster cylinder; the rear section of the shaping head piston rod is arranged in the shaping head cylinder sleeve, and the front section of the shaping head piston rod passes through the sealing cylinder cover at the front end of the shaping head cylinder sleeve and extends out of the shaping head cylinder sleeve.

A shaping head piston rod positioned outside the shaping head cylinder sleeve 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 a shaping head piston rod 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 multi-petal shaping blocks A are respectively connected with a shaping head piston rod through short connecting ropes, and the other part of the multi-petal shaping blocks B are respectively connected with the shaping head piston rod through long connecting ropes, so that when the shaping head is unlocked, the shaping blocks generate axial relative displacement between the petal shaping blocks, and the shaping sleeve is rapidly disassembled; 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 provided with all shaping blocks B connected with the long connecting rope, the middle section is provided with all shaping blocks A connected with the short connecting rope, and the rear section is provided with a shaping head piston rod.

One end of the short connecting rope is limited in a limiting groove (T-shaped groove) on the piston rod of the shaping head 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 piston rod, 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 piston rod 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 a shaping head piston rod 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 piston rod 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 piston rod through a short connecting rope; each shaping block B is connected with a shaping head piston rod 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.

The back pressure rod is provided with a middle air passage for transmitting high-pressure gas generated by the solid propellant forwards, and a lateral air passage for communicating the middle air passage of the back pressure rod with the first rodless cavity of the booster cylinder and conducting the high-pressure gas to the first rodless cavity of the booster cylinder so as to push the piston rod to move forwards; the back pressure adjusting sleeve is provided with a flange which is used for being clamped with the first step part in the first supercharging cylinder to limit the back pressure rod.

The back pressure adjusting sleeve is provided with a ring groove which is convenient to break when the back pressure adjusting sleeve is pressed to reach the design pressure; the depth of the ring groove is set according to the design pressure.

A second step part for axially limiting the head part of the first piston rod is arranged at the rear part of the cylinder sleeve of the first booster cylinder; a sealing element is arranged between the head of the piston rod and the inner wall of the cylinder sleeve of the first booster cylinder; a piston return spring is sleeved outside the first piston rod; the rear end of the piston return spring abuts against the head of one piston rod, and the front end of the piston return spring abuts against the rear end of the adjacent supercharging cylinder; the first piston rod is provided with a middle air passage for transmitting high-pressure gas forwards, and a lateral air passage for communicating the middle air passage of the first piston rod with a rodless cavity of an adjacent booster cylinder and conducting the high-pressure gas to the rodless cavity of the adjacent booster cylinder so as to push the piston rod of the adjacent booster cylinder to move forwards; a first pressure relief hole for pressure relief of the rodless cavity of the first booster cylinder is formed in the middle of the cylinder sleeve of the first booster cylinder; and the front end of the cylinder sleeve of the first supercharging cylinder is provided with a first exhaust hole for throttling and buffering.

The rear part of the cylinder sleeve of the last booster cylinder is provided with a step part for axially limiting the head part of the piston rod of the last booster cylinder; a sealing element is arranged between the head of the piston rod of the last booster cylinder and the inner wall of the cylinder sleeve of the last booster cylinder; the front end of the cylinder sleeve of the last supercharging cylinder is provided with an exhaust hole for throttling and buffering; and a middle air passage for transmitting high-pressure gas forwards is arranged on the piston rod of the last booster cylinder, and a lateral air passage for communicating the middle air passage of the piston rod of the last booster cylinder with the rodless cavity in the shaping head cylinder sleeve and for communicating the high-pressure gas to the rodless cavity in the shaping head cylinder sleeve so as to push the shaping head piston rod to move forwards is arranged on the piston rod of the last booster cylinder.

The rear end of the shaping head cylinder sleeve is provided with a step part for axially limiting the head part of the shaping head piston rod; a sealing element is arranged between the head of the shaping head piston rod and the inner wall of the shaping head cylinder sleeve; and the front end of the shaping head cylinder sleeve is provided with an exhaust hole for throttling and buffering.

The number of the supercharging cylinders is two; the first supercharging cylinder is a primary cylinder, and the last supercharging cylinder is a secondary cylinder.

The utility model discloses an exploder and combustion chamber provide power for the complete sets of instrument, and exploder, hydraulic anchor are market and directly buy. The back pressure adjusting sleeve is provided with a weak part, gas pressure borne by the piston rod is transmitted to the back pressure adjusting sleeve through the back pressure rod, and when the back pressure adjusting sleeve bears tension force and is increased to designed tension force, the weak part of the back pressure adjusting sleeve is broken.

The utility model adopts the solid propellant as the power source for driving, the solid propellant can generate enough power by combustion, simultaneously, the shaping speed is also improved, and the shaping efficiency is high; the initiator is used for igniting the propellant to generate high-temperature and high-pressure gas, the high-pressure gas tightly presses the hydraulic anchor fluke on the wall of the sleeve to provide support for subsequent shaping, and then the high-pressure gas enters the pressurization mechanism to enable the piston to generate enough thrust to drive the collapsible shaping head to extrude and expand through the deformed part of the sleeve. The booster mechanism utilizes the three-stage piston to increase the gas pressure, can improve the power from 200kN to more than 600kN and output, and transmits to the shaping head. If the resilience amount of the deformed part of the sleeve is too large, the reshaping head of the reshaping head can increase the lifting force when being clamped at the deformed part of the sleeve, the connecting strip of the reshaping head is broken by pulling, the reshaping head is disassembled into three parts from back to front, namely a reshaping head piston rod part, a rectangular block part and a sector block part, the rectangular block part and the sector block part are respectively connected with the reshaping head piston rod part through a steel wire rope, the radial size of the reshaping head is reduced, and the unlocking is realized.

The solid propellant can be ignited by striking the firing pin of the initiator through the throwing rod, the solid propellant is combusted to generate power, the shaping head is pushed to rapidly pass through the deformed part of the sleeve, the sleeve shaping is realized, the operation is simple, the shaping repair efficiency is improved, and large auxiliary equipment is not needed. When the shaping head of the shaper is clamped, the shaping head can be disassembled into three parts, namely a front part, a middle part and a rear part, the radial size of the shaping head is reduced, and the whole set of tools can be 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 and strong jam releasing capability. The utility model discloses a shaping cover is cylindric and has complete appearance profile before the disintegration, and 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 shaping head parts 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 full sectional view of a shaper.

Fig. 2 is a schematic structural diagram of the shaping head.

Fig. 3 is a full sectional view of the shaping head.

Fig. 4 is a view taken along direction a of fig. 3.

Fig. 5 is an enlarged view of a portion B of fig. 3.

Fig. 6 is an enlarged view of a portion C of fig. 3.

Fig. 7 is an enlarged view of a portion D of fig. 3.

Fig. 8 is an enlarged view of a portion E of fig. 3.

Fig. 9 is a schematic structural diagram of a shaping head piston rod according to a first embodiment.

Fig. 10 is a schematic structural view of a piston rod of a shaping head in a second embodiment.

Fig. 11 is a cross-sectional view of a first embodiment of a piston rod of a shaping head.

Fig. 12 is a view from direction F of fig. 11.

Fig. 13 is a sectional view taken along line G-G of fig. 11.

Fig. 14 is a perspective view of the sector block.

Fig. 15 is a schematic structural view of a fan-shaped block.

Fig. 16 is a view from direction H of fig. 15.

Fig. 17 is a sectional view taken along line I-I of fig. 15.

Fig. 18 is a perspective view of a rectangular block.

Fig. 19 is a schematic structural view of a rectangular block.

Fig. 20 is a view from direction J of fig. 19.

Fig. 21 is a cross-sectional view taken along line K-K of fig. 19.

Fig. 22 is a first structural schematic diagram of the shaping head after disassembly.

Fig. 23 is a schematic structural diagram of the disassembled shaping head.

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 piston rod, 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, 1115 edge, Annular spacing groove, 1116, T type groove, 1117, wire casing, 12, plastic first cylinder liner, 121, exhaust hole, 13, sealed cylinder cap, 14, connector.

Detailed Description

In fig. 1, the rear end of an initiator 1 is in threaded connection with a connector 14, the front end of the initiator 1 is in threaded connection with a combustion chamber 2, the front end of the combustion chamber 2 is in threaded connection with the rear end of a hydraulic anchor 3, and the hydraulic anchor 3 is in threaded connection with the rear end of a first-stage 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 piston rod 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 middle air passage of the second piston rod with a rodless cavity in the cylinder sleeve of the shaping head and for communicating the high-pressure gas to the rodless cavity in the cylinder sleeve of the shaping head so as to push the piston rod of the shaping head 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 piston rod 111 and the shaping head cylinder sleeve 12 and between the sealing cylinder cover 13 and the shaping head piston rod 111.

In fig. 2, 3 and 4, the detachable shaping head 11 is mainly composed of a shaping head piston rod 111, three sector 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, so that the pressure of the rectangular block to the shaping head piston rod is reduced, and the shaping head piston rod is easier to pull 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 piston rod; the front end of the sector block is connected with the front end of the shaping head piston rod 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 piston rod through a long screw 119; the front end of the rectangular block is connected with the front end of the shaping head piston rod 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 piston rod through a long screw.

The contact surfaces between the sector block and the rectangular block, between the sector block and the shaping head piston rod and between the rectangular block and the shaping head piston rod 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. 5 and 6, the long wire rope 114 connects the rear end of the sector block 115 and the front end of the shaping head piston rod 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 piston rod is realized.

In fig. 7 and 8, the short steel wire rope 1112 is connected with the rear end of the rectangular block 1111 and the shaping head piston rod: 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 piston rod 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 piston rod.

In fig. 9, the shaping head piston rod 111 (embodiment one) is located outside the shaping head cylinder casing 12 and has a hexagonal prism structure.

In fig. 10, the shaping head piston rod 111 (second embodiment) has a hexagonal frustum-shaped structure (as shown in fig. 10) with a large rear end and a small front end.

In fig. 11, 12 and 13, the shaping head piston rod 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 piston rod of the reshaping head 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. 14, 15, 16 and 17, 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. 18, 19, 20 and 21, 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, so that the pressure of the rectangular block to the shaping head piston rod is reduced, and the shaping head piston rod is easier to pull out when the clamp is released.

In fig. 22 and 23, 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 piston rod 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.

The utility model adopts solid propellant as power source, the shaping efficiency is high; 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. connecting a casing shaper to the lowest end of the coiled tubing, and descending the casing shaper to the 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 (complete set of tool) is increased, the sector block connecting strip and the rectangular block connecting strip are broken by force, the detachable shaping head is disassembled into a rear part, a middle part and a front part, namely a shaping head piston rod part at the rear section, a rectangular block part at the middle section and a sector block part at the front section, the radial size of the shaper is reduced, and the blockage is effectively released.

Claims

1. A swage device characterized by: comprises a power mechanism, an anchoring mechanism, a pressurizing mechanism and a shaping head which are connected in sequence;

the power mechanism comprises an initiator (1); the rear end of the detonator (1) is connected with a connector (14) used for being connected with an oil pipe, and the front end of the detonator (1) is connected with an inlet of the combustion chamber (2); the combustion chamber (2) is internally provided with a solid propellant;

the anchoring mechanism comprises a hydraulic anchor (3) connected with the outlet of the combustion chamber (2);

the pressurization mechanism comprises a plurality of pressurization cylinders positioned between the hydraulic anchor (3) and the shaping head; the plurality of supercharging cylinders are sequentially connected in series; the hydraulic anchor (3) is connected with the first supercharging cylinder;

a first piston rod (7) is arranged in the first supercharging cylinder; the back pressure rod (6) is limited at one end, close to the hydraulic anchor (3), in the first pressurizing cylinder through the back pressure adjusting sleeve (5); the backpressure adjusting sleeve (5) releases a backpressure rod (6) when the backpressure adjusting sleeve is pressed to reach the design pressure so as to transmit the high-energy gas pressure generated by the combustion of the solid propellant to the shaping head through the piston rod of each pressurizing cylinder;

the last supercharging cylinder is connected with a shaping head cylinder sleeve (12);

the shaping head comprises a shaping head piston rod (111) connected with the piston rod of the last booster cylinder; the rear section of the shaping head piston rod (111) is arranged in the shaping head cylinder sleeve (12), and the front section of the shaping head piston rod (111) passes through a sealing cylinder cover (13) at the front end of the shaping head cylinder sleeve (12) and extends out of the shaping head cylinder sleeve (12);

a shaping head piston rod (111) positioned outside the shaping head cylinder sleeve (12) 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 a shaping head piston rod (111) 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 multi-petal shaping blocks A are respectively connected with a shaping head piston rod through short connecting ropes, and the other part of the multi-petal shaping blocks B are respectively connected with the shaping head piston rod through long connecting ropes, so that when the shaping head is unlocked, the shaping blocks generate axial relative displacement between the petal shaping blocks, and the shaping sleeve is rapidly disassembled;

the part of the disintegrated shaping head arranged outside the shaping head cylinder sleeve (12) is split into a front section, a middle section and a rear section, the front section is provided with all shaping blocks B connected with the long connecting rope, the middle section is provided with all shaping blocks A connected with the short connecting rope, and the rear section is provided with a shaping head piston rod (111).

2. The swage shaper of claim 1, wherein: one end of the short connecting rope is limited in a limiting groove on the shaping head piston rod 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 piston rod, 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;

a convex edge (1114) is arranged on the shaping head piston rod (111), and an annular limiting groove (1115) which is used for clamping the rear end of the shaping block to limit the shaping block is arranged on the convex edge (1114); the front end of the shaping block is connected with the front end of a shaping head piston rod (111) through a connecting strip which can be broken when the sleeve shaper is pulled backwards to unlock the shaping head.

3. The swage shaper of 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 shaper of 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 piston rod through a short connecting rope; each shaping block B is connected with a shaping head piston rod through a long connecting rope.

5. The swage shaper of claim 1, wherein: 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 a first rodless cavity of the booster cylinder and conducting the high-pressure gas to the first rodless cavity of the booster cylinder so as to push the piston rod I (7) to move forwards; and a flange used for being clamped with the first step part (43) in the first supercharging cylinder to limit the back pressure rod (6) is arranged on the back pressure adjusting sleeve (5).

6. The swage shaper of claim 1, wherein: the back pressure adjusting sleeve (5) is provided with a ring 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.

7. The swage shaper of claim 1, wherein: 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 cylinder sleeve of the first booster cylinder;

a sealing element is arranged between the head of the first piston rod (7) and the inner wall of the cylinder sleeve of the first booster cylinder;

a piston return spring (8) is sleeved outside the first piston rod (7); the rear end of the piston return spring (8) abuts against the head of the first piston rod (7), and the front end of the piston return spring (8) abuts against the rear end of the adjacent supercharging cylinder;

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 middle air passage of the first piston rod with a rodless cavity of an adjacent booster cylinder and conducting the high-pressure gas to the rodless cavity of the adjacent booster cylinder so as to push the piston rod of the adjacent booster cylinder to move forwards;

a first pressure relief hole (41) for pressure relief of the rodless cavity of the first booster cylinder is formed in the middle of the cylinder sleeve of the first booster cylinder; and the front end of the cylinder sleeve of the first supercharging cylinder is provided with a first exhaust hole (42) for throttling and buffering.

8. The swage shaper of claim 1, wherein: the rear part of the cylinder sleeve of the last booster cylinder is provided with a step part for axially limiting the head part of the piston rod of the last booster cylinder;

a sealing element is arranged between the head of the piston rod of the last booster cylinder and the inner wall of the cylinder sleeve of the last booster cylinder;

the front end of the cylinder sleeve of the last supercharging cylinder is provided with an exhaust hole (101) for throttling and buffering;

and a middle air passage (91) for transmitting high-pressure gas forwards is arranged on the piston rod of the last booster cylinder, and a lateral air passage (92) for communicating the middle air passage of the piston rod of the last booster cylinder with the rodless cavity in the cylinder sleeve of the shaping head and for communicating the high-pressure gas to the rodless cavity in the cylinder sleeve of the shaping head so as to push the piston rod of the shaping head to move forwards is arranged on the piston rod of the last booster cylinder.

9. The swage shaper of claim 1, wherein: the rear end of the shaping head cylinder sleeve (12) is provided with a step part for axially limiting the head part of the shaping head piston rod; a sealing element is arranged between the head part of the shaping head piston rod (111) and the inner wall of the shaping head cylinder sleeve (12); and the front end of the shaping head cylinder sleeve (12) is provided with an exhaust hole (121) for throttling and buffering.

10. The swage shaper of claim 1, wherein: the number of the supercharging cylinders is two; the first supercharging cylinder is a primary cylinder, and the last supercharging cylinder is a secondary cylinder.