CN214836252U - Quick ash injection pipe column - Google Patents

Abstract

The utility model relates to the field of oil-water well workover, and provides a quick cement injection pipe column, wherein a steel wire rope is connected with a connector, the connector is connected with the pipe column, a cement discharge cover is arranged at the lower part of the pipe column, a locking groove is arranged on the inner wall of the lower part of the cement discharge cover, the locking groove is matched with a locking cap, the locking cap is connected with an unlocking rod, a compression table B and an impact head are integrally formed at the lower part of the unlocking rod, a fixed sleeve is fixed at the bottom of the pipe column, a through hole and a compression table A are arranged at the middle part of the fixed sleeve, and a spring passes through the unlocking rod; has the advantages that: the utility model is simple and convenient by matching the lock cap with the lock groove and locking the ash discharge cover by the lock cap under the action of the unlocking rod and the spring; when the impact head impacts an object at the ash injection position in the oil well, the unlocking rod moves upwards to separate the locking cap from the locking groove, cement pushes the ash discharge cover open under the action of gravity, the cement easily falls into the oil well casing, the automatic release of the cement is realized, and the side discharge of the pipe column is more reliable and does not affect the reuse of the ash discharge cover.

Description

Quick ash injection pipe column

Technical Field

The utility model belongs to the technical field of oil-water well workover and specifically relates to a annotate grey tubular column fast.

Background

In the process of oil and gas drilling, no matter drilling operation or well completion operation, the operation of cement plug injection is often required, and when some waste wells are backfilled in a certain well section, the waste wells are backfilled in a cement plug injection mode, so that the leakage or collapse accidents of the oil wells are avoided, and cement injection pipe columns are usually used for the cement plug injection.

The existing cement injection pipe column releases cement from the bottom during working, and the condition that the cement circulation is not smooth due to the fact that a release device is covered and blocked by a large amount of cement after being released exists.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a annotate grey tubular column fast for solving the release that exists among the prior art and receiving a large amount of cement after the release and cover shortcomings such as the stifled circumstances that leads to the cement circulation not smooth.

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

a quick ash injection pipe column comprises a steel wire rope, a connector, a pipe column, a connector A, a rotating shaft, a connector B, an ash discharge cover, a lock cap, an unlocking rod, a spring, a sealing ring and a fixing sleeve, wherein the steel wire rope is connected with the top of the connector, the bottom of the connector is connected with the top of the pipe column through threads, the two sides of the outer wall of the lower part of the pipe column are symmetrically welded with the connector A, the connector A is connected with the connector B through the rotating shaft, the connector B is welded on the outer wall of the upper part of the ash discharge cover, a lock groove is integrally formed on the inner wall of the lower part of the ash discharge cover and is matched with the lock cap, a threaded hole is formed in the middle of the bottom of the lock cap, the lock cap is connected with the top of the unlocking rod through threads, a collision head is integrally formed on the bottom of the unlocking rod, a compression table B is arranged on the lower part of the unlocking rod, and the unlocking rod passes through the fixing sleeve, and the unlocking rod and the bottom of the fixed sleeve are provided with sealing rings, the fixed sleeve is fixed at the bottom of the tubular column through threads, the middle part of the fixed sleeve is provided with a through hole, the lower part of the through hole is provided with a compression table A, a spring penetrates through the unlocking rod, and the spring is positioned between the compression table A and the compression table B.

Preferably, the fixing sleeve is a cone.

Preferably, the impact head is a cone.

Preferably, the number of the ash discharge covers is 2.

Preferably, the ash discharge covers are symmetrically distributed on two sides of the outer wall of the pipe column.

Preferably, the sealing ring is O-shaped.

Preferably, the sealing ring is nitrile rubber.

The utility model discloses the beneficial effect who produces does: the utility model is simple and convenient by matching the lock cap with the lock groove and locking the ash discharge cover by the lock cap under the action of the unlocking rod and the spring; when the impact head impacts an object at the ash injection position in the oil well, the unlocking rod moves upwards to separate the locking cap from the locking groove, cement pushes the ash discharge cover open under the action of gravity, the cement easily falls into the oil well casing, the automatic release of the cement is realized, and the side discharge of the pipe column is more reliable and does not affect the reuse of the ash discharge cover.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of the dust discharging cover.

Fig. 3 is a cross-sectional view of the locking cap, retaining sleeve and release lever.

Fig. 4 is a perspective view of the locking cap, securing sleeve and unlocking lever.

Wherein: 1. the device comprises a steel wire rope, 2, connectors, 3, a pipe column, 4, connectors A, 5, a rotating shaft, 6, connectors B, 7, an ash discharge cover, 701, a locking groove, 8, a locking cap, 801, a threaded hole, 9, an unlocking rod, 901, a compression table B, 902, a collision head, 10, a spring, 11, a sealing ring, 12, a fixing sleeve, 1201, a through hole, 1202 and a compression table A.

Detailed Description

In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The present invention will be described in further detail with reference to the accompanying drawings.

A quick ash injection pipe column comprises a steel wire rope 1, a connector 2, a pipe column 3, a connector A4, a rotating shaft 5, a connector B6, an ash discharge cover 7, a lock cap 8, an unlocking rod 9, a spring 10, a sealing ring 11 and a fixing sleeve 12, wherein the steel wire rope 1 is connected with the top of the connector 2, the bottom of the connector 2 is connected with the top of the pipe column 3 through threads, the two sides of the outer wall of the lower part of the pipe column 3 are symmetrically welded with the connector A4, the connector A4 is connected with the connector B6 through the rotating shaft 5, the connector B6 is welded on the outer wall of the upper part of the ash discharge cover 7, the inner wall of the lower part of the ash discharge cover 7 is integrally formed with a lock groove 701, the lock groove 701 is matched with the lock cap 8, a threaded hole 801 is arranged in the middle of the bottom of the lock cap 8, the lock cap 8 is in threaded connection with the top of the unlocking rod 9 through the threaded hole 801, an impact head 902 is integrally formed at the bottom of the unlocking rod 9, the impact head top and a compression table B901 is arranged at the lower part of the unlocking rod 902, the unlocking rod 9 penetrates through the fixing sleeve 12, a sealing ring 11 is arranged at the bottom of the unlocking rod 9 and the fixing sleeve 12, the fixing sleeve 12 is fixed to the bottom of the tubular column 3 through threads, a through hole 1201 is formed in the middle of the fixing sleeve 12, a compression table A1202 is arranged on the lower portion of the through hole 1201, the spring 10 penetrates through the unlocking rod 9, and the spring 10 is located between the compression table A1202 and the compression table B901.

Preferably, said sleeve 12 is conical.

Preferably, the impact head 902 is a cone.

Preferably, the number of the ash discharge covers 7 is 2.

Preferably, the ash discharge covers 7 are symmetrically distributed on two sides of the outer wall of the pipe column 3.

Preferably, the sealing ring 11 is O-shaped.

Preferably, the sealing ring 11 is nitrile rubber.

The utility model discloses during the use, with fixed cover 12 threaded connection in the bottom of tubular column 3, spring 10 is sheathe in to unblock pole 9, later unblock pole 9 passes through fixed cover 12's through-hole 1201 and lock cap 8 threaded connection, spring 10 department is compressing between platform A1202 and compression platform B901 this moment, compression platform A1202 and compression platform B901 exert the effort for spring 10, the reaction force through spring 10 pulls down unblock pole 9, thereby pull down lock cap 8, it is more firm that messenger lock cap 8 and locked groove 701 lock.

Inwards pour into cement from 3 tops of tubular column, later connect connector 2 at 3 tops of tubular column through the screw thread, it is intraductal through wire rope 1 oil drain casing under the whole tubular column 3 to connect, transfer to the notes grey position of oil well design degree of depth, the toper of bottommost unblock lever 9 hits the object of annotating grey position in the oil well, make unblock lever 9 move up, thereby unblock lever 9 drives locking cap 8 and moves up, locking cap 8 breaks away from the locked groove 701 of ash discharge lid 7 inner wall lower part, ash discharge lid 7 under this state is unrestricted, cement in upper portion tubular column 3 backs down ash discharge lid 7 under self action of gravity, cement just flows into in the oil well casing space, whole tubular column 3 lifts simultaneously, avoid ash discharge lid 7 to fall into in the discharged cement.

Because of containing water, oil and graininess other object in the oil well casing, the effect of dustproof sealing ring 11 blocks that the graininess object that contains in the well liquid gets into compression spring 10 when whole tubular column 3 goes into the well, and compression spring 10's effect is more effective lets locking cap 8 tightly press in the locked groove 701 of ash discharge lid 7, avoids transferring the in-process and opens in advance.

The above contents are only for explaining the technical idea of the present invention, and the protection scope of the present invention cannot be limited thereby, and any modification made on the basis of the technical solution according to the technical idea of the present invention all fall within the protection scope of the claims of the present invention.

Claims (7)

1. The utility model provides a annotate grey tubular column fast, includes wire rope, connector, tubular column, connects A, pivot, connects B, ash discharge lid, lock nut, unblock pole, spring, sealing washer and fixed cover, its characterized in that: the steel wire rope is connected with the top of the connector, the bottom of the connector is connected with the top of the pipe column through threads, the two sides of the outer wall of the lower part of the pipe column are symmetrically welded with the connectors A, the connectors A are connected with the connectors B through rotating shafts, the connectors B are welded on the outer wall of the upper part of the ash discharging cover, the inner wall of the lower part of the ash discharging cover is integrally formed with locking grooves, the locking grooves are matched with locking caps, a threaded hole is formed in the middle of the bottom of each locking cap, the locking caps are in threaded connection with the tops of the unlocking rods through the threaded holes, the bottoms of the unlocking rods are integrally formed with striking heads, the tops of the striking heads are provided with compression tables B, the unlocking rods penetrate through the fixing sleeves, sealing rings are arranged at the bottoms of the unlocking rods and the fixing sleeves, the fixing sleeves are fixed at the bottoms of the pipe column through threads, through holes are formed in the middle parts of the fixing sleeves, and the lower parts of the through holes are provided with the compression tables A, the spring passes through the unlocking rod and is positioned between the compression table A and the compression table B.

2. The quick cement injection string according to claim 1, wherein: the fixed sleeve is a cone.

3. The quick cement injection string according to claim 1, wherein: the impact head is a cone.

4. The quick cement injection string according to claim 1, wherein: the number of the ash discharge covers is 2.

5. The quick cement injection string according to claim 1 or 4, wherein: the ash discharge covers are symmetrically distributed on two sides of the outer wall of the pipe column.

6. The quick cement injection string according to claim 1, wherein: the sealing ring is O-shaped.

7. The quick cement injection string according to claim 1 or 6, wherein: the sealing ring is made of nitrile rubber.

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