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CN-122014137-A - Grinding and flushing integrated tool for casing mud line suspension system-temporary well abandoning cap

CN122014137ACN 122014137 ACN122014137 ACN 122014137ACN-122014137-A

Abstract

The invention discloses a grinding and flushing integrated tool for a casing mud line suspension system-temporary well abandon cap, which relates to the technical field of grinding and flushing and comprises a casing suspension system, a drill rod arranged on the casing suspension system, cutting teeth arranged on the drill rod, a high-pressure flushing hole formed in the drill rod, a stabilizing device arranged on the casing suspension system and comprising a stabilizing mechanism and a protecting mechanism, wherein the stabilizing mechanism comprises an electric telescopic rod arranged on the casing suspension system, a connecting plate fixedly arranged on the output end of the electric telescopic rod and a centering block fixedly arranged on the connecting plate, and the integral grinding and flushing integrated tool is positioned in the central position to be aligned with the temporary well abandon cap by moving the centering block and contacting with a well wall, so that the grinding accuracy of the cutting teeth and the well abandon cap are ensured.

Inventors

  • WU QINGHUA
  • YU XIAOTAO
  • ZHANG ZHIQIANG
  • WANG TAO
  • Fan Zaichao
  • LUO TIANFA

Assignees

  • 威飞海洋装备制造有限公司

Dates

Publication Date
20260512
Application Date
20260414

Claims (10)

  1. 1. The grinding and flushing integrated tool for the casing mud line suspension system-temporary well abandon cap comprises a casing suspension system (1), a drill rod (2) arranged on the casing suspension system (1), cutting teeth (3) arranged on the drill rod (2) and a high-pressure flushing hole (4) formed on the drill rod (2), and is characterized by further comprising a stabilizing device arranged on the casing suspension system (1); The stabilizing device comprises a stabilizing mechanism used for stabilizing the whole work when the well abandoning cap is subjected to grinding and flushing operation and a protecting mechanism used for protecting the stabilizing mechanism when the well abandoning cap is subjected to grinding and flushing operation; the stabilizing mechanism comprises an electric telescopic rod (5) arranged on the casing suspension system (1), a connecting plate (6) fixedly arranged at the output end of the electric telescopic rod (5) and a centralizing block (7) fixedly arranged on the connecting plate (6).
  2. 2. The integrated grinding and flushing tool for a casing mud line suspension system-temporary well abandonment cap according to claim 1, wherein the protection mechanism comprises a bottom plate (8) fixedly mounted on the casing suspension system (1), a guard plate (9) fixedly mounted on the bottom plate (8), a long rod (10) fixedly mounted on the bottom plate (8), a sealing plate (11) slidingly mounted on the circumferential surface of the long rod (10), a first inclined surface plate (12) fixedly mounted on the centralizing block (7) and a first inclined surface block (13) fixedly mounted on the sealing plate (11).
  3. 3. The integrated grinding and flushing tool for a casing mud line suspension system-temporary well abandoning cap according to claim 2, wherein the surfaces of the inclined surface plate I (12) and the inclined surface block I (13) which are contacted with each other are all inclined surfaces, the sealing plate (11) is contacted with the guard plate (9), and a spring I is arranged between the sealing plate (11) and the bottom plate (8).
  4. 4. The integrated grinding and flushing tool for a casing mud line suspension system-temporary disposal well cap according to claim 1, further comprising a drain device mounted on the casing suspension system (1); the discharging device comprises a discharging mechanism for discharging redundant water after finishing the grinding and flushing operation of the waste well cap and a resetting mechanism for pushing the discharging mechanism to reset after finishing the operation.
  5. 5. The integrated grinding and flushing tool for a casing mud line suspension system-temporary disposal cap according to claim 4, wherein the discharging mechanism comprises a connecting rod (141) fixedly installed on a closing plate (11), a second inclined plate (142) fixedly installed on the connecting rod (141), a swivel (143) rotatably installed on a bottom plate (8), a small circular plate (144) fixedly installed on the swivel (143), a vertical rod (145) fixedly installed on the swivel (143), and a third inclined plate (146) fixedly installed on the vertical rod (145).
  6. 6. The integrated grinding and flushing tool for a casing mud line suspension system-temporary disposal cap according to claim 5, wherein the reset mechanism comprises two partition plates (147) fixedly mounted on a bottom plate (8), a fixed rod (148) fixedly mounted between the two partition plates (147), a sliding plate (149) slidingly mounted on the circumferential surface of the fixed rod (148), a push rod (1410) fixedly mounted on the sliding plate (149), and a contact plate (1411) fixedly mounted on the push rod (1410).
  7. 7. The integrated grinding and flushing tool for a casing mud line suspension system-temporary well abandoning cap according to claim 6, wherein the contact plate (1411) is contacted with a third inclined plate (146), the surfaces of the second inclined plate (142) and the third inclined plate (146) contacted with each other are inclined surfaces, the bottom plate (8) is provided with a discharge hole, and a second spring is arranged between the sliding plate (149) and the separation plate (147).
  8. 8. The integrated grinding and flushing tool for a casing mud line suspension system-temporary well abandonment cap according to claim 1, wherein the integrated grinding and flushing tool for a casing mud line suspension system-temporary well abandonment cap further comprises an anti-blocking device mounted on the casing suspension system (1); The anti-blocking device is used for preventing the discharging mechanism from being blocked by other impurities when the discharging mechanism works, so that the discharging is not smooth.
  9. 9. The integrated grinding and flushing tool for a casing mud line suspension system-temporary well abandonment cap according to claim 8, wherein the anti-blocking device comprises a fixed plate (151) fixedly installed on the casing suspension system (1), an elastic telescopic rod (152) fixedly installed on the fixed plate (151), a circular plate (153) fixedly installed on the movable end of the elastic telescopic rod (152), a thin rod (154) fixedly installed on the circular plate (153), a bevel rod (155) fixedly installed on a swivel (143), a fixed block (156) fixedly installed on the circular plate (153) and a bevel block II (157) fixedly installed on the fixed block (156).
  10. 10. The integrated grinding and flushing tool for a casing mud line suspension system-temporary well abandoning cap according to claim 9, wherein the surfaces of the inclined surface rod (155) and the inclined surface block II (157) which are close to each other are all inclined surfaces, the size of the thin rod (154) is smaller than that of a discharge hole formed in the bottom plate (8), and the thin rod (154) is not contacted with the discharge hole.

Description

Grinding and flushing integrated tool for casing mud line suspension system-temporary well abandoning cap Technical Field The invention relates to the technical field of grinding and flushing, in particular to a grinding and flushing integrated tool for a casing mud line suspension system-temporary well abandoning cap. Background The utility model provides an interim abandon well cap grinding and washing integrated instrument, is the special instrument in pit that is specially designed for interim abandon well cap clearance, repair, integrates grinding and high pressure washing function, and one trip is bored and is accomplished surface remediation, debris clearance, piece and return the row, avoids taking off the drill for a plurality of times. Patent publication number CN206174924U relates to grinding and flushing technical field, including high-efficient rotatory washing head, ball seat nipple joint, load display joint, examine seal nipple joint four parts, there is the liquid runner in whole tubular column inside, high-efficient rotatory washing head designs has radial, axial, different orientation's such as slant nozzle, washes sand control tubular column inner wall and bottom impurity under the effect of high-pressure flushing fluid, examine seal nipple joint middle part and have two pressure testing holes. The integrated tool for flushing and seal checking can achieve integrated operation of flushing and seal checking, saves time effect, is simpler in determination of a target seal cylinder and more reliable in seal checking result through positioning of a load display joint, can rapidly check whether the integrated tool fails or not through secondary pressure test of a perfect seal cylinder in a well in the operation process of seal checking operation of a plurality of seal cylinders of a single well, rapidly judges the condition of the downhole tool, does not need to take out the tool to check the pressure test of the tool on the ground, is simple in integral operation, is safe and reliable, improves time effect of operation, and saves operation cost. According to the scheme, the target sealing cylinder is simpler to determine and the sealing inspection result is more reliable through positioning of the load display joint, in the operation process of sealing inspection operation of a plurality of sealing cylinders of a single well, whether the integrated tool fails or not can be rapidly inspected through secondary pressure test of the perfect sealing cylinder in the well, the condition of the tool in the well is rapidly judged, the tool does not need to be started to inspect the pressure test of the tool on the ground, the whole operation is simple, safety and reliability are realized, the operation time is improved, the operation cost is saved, but the problem that the whole device is difficult to stabilize in the operation process and offset vibration is easy to generate in the operation process exists in the scheme. Disclosure of Invention Aiming at the defects of the prior art, the invention provides a grinding and flushing integrated tool for a casing mud line suspension system-temporary well abandoning cap, which solves the problems in the prior art. The integrated grinding and flushing tool for the casing mud line suspension system-temporary abandoned well cap comprises a casing suspension system, a drill pipe arranged on the casing suspension system, cutting teeth arranged on the drill pipe, and a high-pressure flushing hole formed on the drill pipe, and further comprises a stabilizing device arranged on the casing suspension system; The stabilizing device comprises a stabilizing mechanism used for stabilizing the whole work when the well abandoning cap is subjected to grinding and flushing operation and a protecting mechanism used for protecting the stabilizing mechanism when the well abandoning cap is subjected to grinding and flushing operation; The stabilizing mechanism comprises an electric telescopic rod arranged on the sleeve suspension system, a connecting plate fixedly arranged on the output end of the electric telescopic rod and a righting block fixedly arranged on the connecting plate, and the electric telescopic rod is synchronously started when the sleeve suspension system drives the integral grinding and flushing integrated tool to start to descend into the well and is about to contact with the temporary abandoned well cap, so that the electric telescopic rod pushes the connecting plate to start to move in the well wall direction, the connecting plate drives the righting block to start to move in the same direction when moving, and the righting block moves to contact with the well wall to position the integral grinding and flushing integrated tool at the center position and align with the temporary abandoned well cap. The protection mechanism comprises a bottom plate fixedly arranged on the casing suspension system, a guard plate fixedly arranged on the bottom plate, a long ro