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CN-121701152-B - Hydraulic detonation device for oil pipe conveying perforation

CN121701152BCN 121701152 BCN121701152 BCN 121701152BCN-121701152-B

Abstract

The invention discloses a hydraulic detonation device for oil pipe conveying perforation, relates to the technical field of drilling perforation, and aims to solve the technical problem of low functionality of the hydraulic detonation device for oil pipe conveying perforation. According to the invention, the piston ring is lowered by hydraulic pressure, so that the rotary ring pipe rotates, the air pressure of the lower separation cavity is reduced until the air pressure is equal to the hydraulic pressure of the upper separation cavity, the rotation angle of the rotary ring pipe is regulated, the rotary locking module provides additional limit for the hydraulic detonation module in an initial state, and a mechanism for triggering and releasing the rod body is combined, so that a secondary safety is formed, the rotary locking module is triggered to act by falling of the rod body, the locking of the rotary ring pipe and the release of the additional limit for the hydraulic detonation module are synchronously realized, the premature explosion risk caused by underground complex working conditions is effectively prevented, and the high-efficiency, accurate and safe operation requirements are met.

Inventors

  • ZHANG NANNAN
  • YU DEMING
  • LI CHANGQING

Assignees

  • 大庆金祥寓科技有限公司

Dates

Publication Date
20260505
Application Date
20260213

Claims (9)

  1. 1. A hydraulic detonation device for tubing conveyed perforation, comprising: an oil pipe mechanism (1); The connecting module (2) comprises a column body (21) arranged at the bottom end of the oil pipe mechanism (1), a sliding cavity (22) is formed in the column body (21), and a plurality of through holes (24) communicated with the sliding cavity (22) are formed in the top end of the column body (21); The two ends of the column body (21) are provided with rotary holes (23) communicated with the sliding cavity (22), and the surface of the rotary hole (23) at the top end is provided with a plurality of clamping grooves (26) in an annular equidistant structure; The hydraulic rotating module (3) comprises a rotating ring pipe (31) and a piston ring (33), wherein the rotating ring pipe (31) is arranged on the sliding cavity (22), the piston ring (33) is arranged in the sliding cavity (22) in a sliding manner, and the inner surface of the piston ring (33) is movably connected with the rotating ring pipe (31); a top sliding groove (311) is formed in the top end of the rotary ring pipe (31), and an outer sliding groove (312) communicated with the top sliding groove (311) is formed in the outer surface of the top of the rotary ring pipe (31); The lower separation cavity enclosed by the bottom end of the piston ring (33), the sliding cavity (22) and the rotary ring pipe (31) is filled with gas, and the piston ring (33) slides along the sliding cavity (22) under the action of hydraulic pressure and drives the rotary ring pipe (31) to rotate; The rotary locking module (4) is arranged on the rotary ring pipe (31); The rotary locking module (4) comprises a clamping sliding block (41), an inserting sliding plate (43) and a top sliding block (44), wherein the clamping sliding block (41) is arranged on the outer sliding groove (312) in a sliding mode, a plurality of clamping protrusions (40) are uniformly and fixedly arranged on the outer surface of the clamping sliding block (41), the clamping protrusions (40) are matched with the clamping grooves (26) in a clamping mode, the clamping sliding block (41) is elastically connected with the outer sliding groove (312) through at least one spring (42), the inserting sliding plate (43) is arranged on the outer sliding groove (312) in a sliding mode and fixedly connected with the clamping sliding block (41), the top sliding block (44) is arranged on the top sliding groove (311) in a sliding mode, and the top sliding block (44) penetrates out of the top sliding groove (311) and is fixedly provided with a guide block (45); the lower joint (5) is arranged at the bottom end of the connecting module (2) and is fixedly connected with the rotary ring pipe (31); The hydraulic detonation module (6) is arranged in the rotary ring pipe (31); Wherein the rotary locking module (4) provides additional limit for the hydraulic detonation module (6) in an initial state; The detonator (7) is fixedly arranged on the lower joint (5); the perforating gun (8) is connected to the lower joint (5) in a threaded manner; The rod body (9) can be thrown down along the oil pipe mechanism (1), and the rod body (9) can trigger the rotary locking module (4) to act when falling so as to lock the rotary ring pipe (31) and synchronously release the additional limit of the hydraulic detonation module (6).
  2. 2. The hydraulic detonation device for oil pipe conveying perforation according to claim 1, wherein the oil pipe mechanism (1) comprises a branch pipe A (11) and a plurality of branch pipes B (12), the branch pipe A (11) is in threaded fit with the branch pipes B (12), any two branch pipes B (12) are in threaded fit, a threaded groove (13) is formed in the surface of the branch pipe A (11) at the top end, a rod throwing through groove (14) is formed in the bottom of the threaded groove (13), and a sleeve (15) is connected to the threaded groove (13) in a threaded mode.
  3. 3. The hydraulic detonation device for oil pipe conveying perforation according to claim 2, wherein an upper threaded pipe (25) is fixedly arranged at the top end of the cylinder (21), and the upper threaded pipe (25) is in threaded fit with the bottom end of the branched pipe B (12).
  4. 4. The hydraulic detonation device for oil pipe conveying perforation according to claim 1, wherein two ends of the rotary ring pipe (31) are respectively connected with two rotary holes (23) in a rotating mode, a plurality of threaded guide grooves (32) are formed in the surface of the rotary ring pipe (31) in an annular equidistant structure, a plurality of threaded protrusions (34) are fixedly arranged on the inner surface of the piston ring (33) in an annular equidistant structure, and the plurality of threaded protrusions (34) are respectively and movably connected with the plurality of threaded guide grooves (32).
  5. 5. The hydraulic detonation device for oil pipe conveying perforation according to claim 1, wherein an inner surface of the top of the rotary collar (31) is provided with an inner chute (313) communicated with the outer chute (312).
  6. 6. The hydraulic detonation device for oil pipe conveying perforation according to claim 1, wherein the lower joint (5) comprises a connecting ring block (51), the connecting ring block (51) is arranged at the bottom end of the cylinder (21), the bottom end of the rotary ring pipe (31) penetrates out of the rotary hole (23) at the bottom end and is fixedly connected with the connecting ring block (51), the detonator (7) is fixedly arranged on the inner surface of the connecting ring block (51), a lower threaded pipe (52) is fixedly arranged at the bottom end of the connecting ring block (51), the perforating gun (8) is in threaded connection with the lower threaded pipe (52), and the bottom end of the detonator (7) is connected with a detonating cord of the perforating gun (8).
  7. 7. The hydraulic detonation device for oil pipe conveying perforation according to claim 1, wherein the hydraulic detonation module (6) comprises an inner piston (61) and a firing pin (63), the inner piston (61) is movably arranged in the rotary ring pipe (31), the inner piston (61) and the rotary ring pipe (31) are fixedly connected through a shearing pin (62), and the firing pin (63) is fixedly arranged at the bottom end of the inner piston (61).
  8. 8. The hydraulic detonation device for oil pipe conveying perforation according to claim 7, wherein a spherical groove (611) is formed in the top end of the inner piston (61), a plurality of slots (612) are formed in the surface of the inner piston (61) in an annular equidistant structure, and a plurality of plugging sliding plates (43) are respectively plugged and matched with a plurality of the slots (612).
  9. 9. The hydraulic detonation device for oil pipe conveying perforation according to claim 2, wherein a plurality of guide blocks (45) are movably matched with the rod body (9), the rod body (9) comprises column blocks (91) matched with the tube cavities of the branch tubes B (12), two ends of each column block (91) are of spherical structures, a plurality of vertical holes A (92) are formed in each column block (91) in an annular equidistant structure, a guide shaft (93) is fixedly arranged at the bottom end of the rod body (9), vertical holes B (94) are formed in the guide shaft (93), and the vertical holes B (94) extend into the column blocks (91) and are communicated with the top ends of the column blocks (91).

Description

Hydraulic detonation device for oil pipe conveying perforation Technical Field The invention relates to the technical field of drilling perforation, in particular to a hydraulic detonation device for oil pipe conveying perforation. Background The core of the oil pipe conveying perforation technology is that the perforation gun string is conveyed to a target stratum through an oil pipe, and the perforation charges are excited through a detonation device to form a pore canal which communicates a shaft and the stratum, and the hydraulic detonation device has become one of the main technologies in the field because of the relatively safe operation and higher reliability. The traditional hydraulic detonation device for pipe conveying perforation is characterized in that a ground pump truck applies hydraulic pressure through a tubing string, when the pressure reaches a preset value, a shearing pin in the device is sheared, the firing pin is released to strike a detonator, and then the perforating gun is detonated, along with the development of complex working conditions such as deep, ultra-deep and large-displacement horizontal wells and the like in a drilling process, the inherent functional short plates are increasingly prominent, the requirements of high-efficiency, accurate and safe operation are difficult to meet, key functions such as perforation azimuth adjustment, mechanical locking and safe explosion prevention are mainly separated from each other, effective linkage is lacked, the operation flow is complicated, the cooperativity is poor, the operation efficiency and the system safety are difficult to consider while the operation precision is ensured, and the whole functionality is seriously insufficient. In view of this, we propose a hydraulic detonation device for tubing conveyed perforations. Disclosure of Invention The invention aims to provide a hydraulic detonation device for oil pipe conveying perforation, which aims to solve the technical problem of low functionality of the hydraulic detonation device for oil pipe conveying perforation. In order to solve the technical problems, the hydraulic detonation device for oil pipe conveying perforation comprises an oil pipe mechanism, a connecting module, a hydraulic rotating module, a rotary locking module, a lower connector, a hydraulic detonation module, a detonator, a perforating gun and a rod body, wherein the connecting module comprises a cylinder arranged at the bottom end of the oil pipe mechanism, a sliding cavity is formed in the cylinder, a plurality of through holes communicated with the sliding cavity are formed in the top end of the cylinder in an annular equidistant structure, the hydraulic rotating module comprises a rotary ring pipe and a piston ring, the rotary ring pipe is arranged on the sliding cavity, the piston ring is slidably arranged in the sliding cavity, the inner surface of the piston ring is movably connected with the rotary ring pipe, the bottom end of the piston ring, the sliding cavity and a lower separation cavity formed by the clearance of the rotary ring pipe are filled with gas, the piston ring slides along the sliding cavity and drives the rotary ring pipe to rotate under the hydraulic action force, the rotary locking module is arranged on the rotary ring pipe, the lower connector is arranged at the bottom end of the connecting module and is fixedly connected with the rotary ring pipe, the hydraulic detonation module is arranged in the rotary ring pipe, the rotary locking module is in the rotary ring pipe, and the rotary ring pipe is fixedly connected with the rotary ring pipe in a mode, and the rotary locking module is fixedly connected with the rotary ring pipe when the rotary locking module is in a position-locking mode, and the rotary ring pipe is connected with the rotary ring pipe body. According to the hydraulic oil pipe device, through the cooperation of the oil pipe mechanism, the connecting module and the hydraulic rotating module, liquid is input to the oil pipe mechanism through the perforating pump truck, the piston ring is lowered by hydraulic pressure, the rotating ring pipe rotates, the lower separation cavity is enabled to be reduced in air pressure until the air pressure is equal to the hydraulic pressure of the upper separation cavity, the rotating angle of the rotating ring pipe is adjusted through the hydraulic pressure of the oil pipe mechanism controlled by the perforating pump truck, the problems that a ground rotating pipe column is required, the operation is complicated and the precision is insufficient in the prior art are solved, the locking of the rotating ring pipe and the additional limiting of the hydraulic detonating module are synchronously realized through the action of the rod body falling, the structural linkage is reliable, the perforating orientation is ensured to be fixed, the operation flow is simplified, the operation efficiency and the safety are improved, the secondary safety