CN211038621U - Safety releasing device for testing oil and gas well - Google Patents

Abstract

The utility model relates to an oil gas well test technical field, and an oil gas well test safety release device is disclosed, including releasing pole and attach fitting, attach fitting's upper end fixedly connected with cup joints the connecting cylinder outside releasing the pole, the cavity has been seted up in releasing the lower extreme rod wall of pole, the bottom inner wall of cavity rotates through ball bearing and is connected with adjusting screw, adjusting screw's upper end runs through the turning block that stretches out the upper end and the fixedly connected with rectangle structure of releasing the pole through the through-hole, the rod wall threaded connection that adjusting screw is located the cavity has a lift screw, the back of the body both sides all rotate with each other about the lift screw and are connected with many push-and-pull rods, the one end that lift screw was kept away from to the push-pull rod is rotated and is connected with the locating lever of pegging graft at releasing pole corresponding cavity rod. The utility model discloses make whole release connection structure be located the release pole, the influence that can not receive the pit shaft environment causes the release difficulty, can realize the work of freeing fast, convenient to use.

Description

Safety releasing device for testing oil and gas well

Technical Field

The utility model relates to an oil gas well test technical field especially relates to an oil gas well test safety release device.

Background

When petroleum geological exploration is carried out, various testing instruments are usually required to be put into a shaft through a drill rod to test a stratum, and the instruments are taken out of the ground after the testing is finished. Various accidents often occur in the testing process, such as underground falling objects or casing deformation, the instrument can be clamped in a shaft, after the casing is perforated, if sand is produced in a stratum, an underground tool or a testing instrument can be buried by the sand, if the underground tool or the testing instrument cannot be timely and effectively released, the underground instrument is kept in the underground as little as possible, fishing work is very difficult, sometimes, the time of several months is used, a large amount of manpower and material resources are spent, the fishing cannot be carried out, only an oil well is scrapped, and the loss is huge.

The release joint connection structure who uses commonly at present often is external, and this results in connection structure department to be plugged by the grit in the pit shaft easily and leads to the timely release operation not to carry out, can make more instruments bury and cause economic huge loss in the pit shaft, is unfavorable for people's use.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving among the prior art commonly used release joint connection structure often is external, and this results in connection structure department to be plugged by the grit in the pit shaft easily and leads to leading to carrying out timely release operation, can make more instruments bury and cause economic huge loss in the pit shaft, is unfavorable for people's the problem of use, and the oil gas well test safety release device who provides.

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

A safety release device for testing oil and gas wells comprises a release rod and a connecting joint, wherein the upper end of the connecting joint is fixedly connected with a connecting cylinder sleeved outside the release rod, a cavity is arranged in the lower end rod wall of the releasing rod, the inner wall of the bottom of the cavity is rotatably connected with an adjusting screw rod through a ball bearing, the upper end of the adjusting screw rod penetrates through the upper end of the releasing rod through the through hole and is fixedly connected with a rotating block with a rectangular structure, the rod wall of the adjusting screw rod positioned in the cavity is connected with a lifting screw cylinder in a threaded manner, the left and right opposite sides of the lifting screw cylinder are respectively connected with a plurality of push-pull rods in a rotating manner, one end of the push-pull rod, which is far away from the lifting screw cylinder, is rotatably connected with a positioning rod which is movably inserted into the cavity rod wall corresponding to the releasing rod through an insertion hole, the inner wall of the connecting cylinder is provided with a plurality of positioning grooves which are correspondingly inserted with the positioning rods, and the upper end of the releasing rod is connected with a limiting mechanism used for limiting the rotation of the rotating block.

Preferably, the upper end of the connecting cylinder is fixedly connected with an external expanding cover.

Preferably, the release rod and the connecting cylinder are of corresponding rectangular structures.

Preferably, the outer wall of the positioning rod is fixedly wrapped with a layer of damping rubber pad.

Preferably, stop gear includes that two are set up and rotate about changeing the piece symmetry and connect the elastic telescopic rod in the upper end of releasing the pole, two the same clamp plate of elastic telescopic rod's upper end fixedly connected with, the lower extreme fixedly connected with of clamp plate matches the spacing frame of joint with changeing the piece.

Preferably, the surface of the rotating block is coated with a layer of anti-skid and wear-resistant rubber pad.

Compared with the prior art, the utility model provides an oil gas well test safety release device possesses following beneficial effect:

1. The oil and gas well test safety release device is characterized in that the device is fixedly connected to a connecting joint through the connecting cylinder and a release rod through the connecting joint when an instrument needs to be placed at the bottom of a shaft, the connecting cylinder is inserted outside the release rod, a rotating block is rotated and drives an adjusting screw to rotate, the lifting screw cylinder moves downwards under the threaded connection action of the adjusting screw and the lifting screw cylinder, and then a push-pull rod is pushed to push a positioning rod to move outwards and be stably inserted in a positioning groove, so that the stable connection between the release rod and the connecting cylinder can be realized, the instrument can be conveniently placed in the shaft, when an accident needs to be released, the rotating block is rotated reversely, and then the lifting screw cylinder moves upwards to drive the positioning rod to pull out the positioning groove, so that the quick release disassembly between the release rod and the connecting cylinder can be realized, and the whole connecting structure is positioned in the release rod, the device is not affected by the shaft environment to cause difficulty in releasing and is convenient to use.

2. This oil gas well test safety release device, through the stop gear who is equipped with, after the commentaries on classics piece is adjusted, the pull-up clamp plate to the commentaries on classics clamp plate makes spacing frame aim at the commentaries on classics piece, loosens the clamp plate again, and the joint that utilizes elasticity telescopic link's pull-back power to make the spacing frame firm realizes outside the commentaries on classics piece that stabilizes spacingly, can avoid the commentaries on classics piece to take place the self-rotation and influence the problem of the firm connection between connecting cylinder and the release lever.

3. This oil gas well test safety release device through the outer cover that expands that is equipped with, can be convenient for people quick convenient will take off the pole and insert the connecting cylinder in fix a position grafting, convenient to use.

And the part that does not relate to among the device all is the same with prior art or can adopt prior art to realize, the utility model discloses make whole connection structure that takes off be located the pole that takes off, the influence that can not receive the pit shaft environment causes the difficulty of taking off, can realize the work of taking off fast, convenient to use.

Drawings

Fig. 1 is a schematic structural view of a safety release device for testing an oil and gas well, which is provided by the utility model;

Fig. 2 is a schematic structural view of a part a of the safety release device for testing an oil and gas well, which is provided by the utility model;

Fig. 3 is the utility model provides a structural schematic diagram of oil gas well test safety release device B part.

In the figure: the device comprises a release rod 1, a connecting joint 2, a connecting cylinder 3, a cavity 4, an adjusting screw rod 5, a rotating block 6, a lifting screw cylinder 7, a push-pull rod 8, a positioning rod 9, a positioning groove 10, a limiting mechanism 11, an elastic telescopic rod 111, a pressing plate 112, a limiting frame 113 and an external expanding cover 12.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely 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.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-3, a safety releasing device for oil and gas well testing comprises a releasing rod 1 and a connecting joint 2, the upper end of the connecting joint 2 is fixedly connected with a connecting cylinder 3 sleeved outside the releasing rod 1, a cavity 4 is arranged in the lower end rod wall of the releasing rod 1, the inner bottom wall of the cavity 4 is rotatably connected with an adjusting screw 5 through a ball bearing, the upper end of the adjusting screw 5 penetrates through the upper end of the releasing rod 1 through a through hole and is fixedly connected with a rotating block 6 with a rectangular structure, the rod wall of the adjusting screw 5 in the cavity 4 is in threaded connection with a lifting screw cylinder 7, the left and right opposite sides of the lifting screw cylinder 7 are respectively rotatably connected with a plurality of push-pull rods 8, one end of each push-pull rod 8, far away from the lifting screw cylinder 7, is rotatably connected with a positioning rod 9 movably inserted in the rod wall of the releasing rod 1 corresponding to the cavity 4 through an insertion hole, the inner wall of the connecting, the upper end of the releasing rod 1 is connected with a limiting mechanism 11 for limiting the rotation of the rotating block 6.

The upper end fixedly connected with of connecting cylinder 3 expands cover 12 outward, can be convenient for people quick convenient will disengage pole 1 and insert in connecting cylinder 3 and fix a position the grafting, convenient to use.

The release rod 1 and the connecting cylinder 3 are of corresponding rectangular structures, so that the butt joint of the positioning rod 9 and the positioning groove 10 can be more accurate and rapid.

The fixed cladding of the outer wall of locating lever 9 has one deck damping rubber pad for the connection of locating lever 9 and constant head tank 10 is more firm.

The limiting mechanism 11 comprises two elastic telescopic rods 111 which are symmetrically arranged about the rotating block 6 and are rotatably connected to the upper end of the releasing rod 1, the upper ends of the two elastic telescopic rods 111 are fixedly connected with the same pressing plate 112, and the lower end of the pressing plate 112 is fixedly connected with a limiting frame 113 which is clamped with the rotating block 6 in a matching mode.

The surface of the rotating block 6 is coated with a layer of anti-skid and wear-resistant rubber pad.

In the utility model, when in use, the instrument is fixedly connected to the connecting joint 2 through the connecting cylinder 3 and the releasing rod 1 when the instrument is required to be placed at the bottom of the shaft, the instrument is connected to the connecting joint 2 through the connecting joint 2, the connecting cylinder 3 is inserted outside the releasing rod 1, the rotating block 6 is rotated, the rotating block 6 drives the adjusting screw 5 to rotate, the lifting screw 7 is moved downwards by utilizing the threaded connection function of the adjusting screw 5 and the lifting screw 7, and then the push-pull rod 8 is pushed to ensure that the push-pull rod 8 pushes the positioning rod 9 to move outwards and stably insert in the positioning groove 10, so that the stable connection between the releasing rod 1 and the connecting cylinder 3 can be realized, the instrument can be conveniently placed in the shaft, when an accident occurs and the releasing work needs to be carried out, the rotating block 6 is rotated reversely, and then the lifting screw 7 is moved upwards to ensure that the positioning rod 9 is driven to pull out the positioning groove 10, so that the quick releasing and detaching between the releasing rod 1, whole connection structure is located disengagement pole 1, the influence that can not receive the pit shaft environment causes the disengagement difficulty, convenient to use, stop gear 11 through being equipped with, after the commentaries on classics piece 6 is adjusted, go up pull-up clamp plate 112, it makes spacing frame 113 aim at commentaries on classics piece 6 to rotate clamp plate 112 to rotate, loosen clamp plate 112 again, the joint that utilizes elasticity telescopic link 111 to make spacing frame 113 firm realizes outside commentaries on classics piece 6 spacing the firm of commentaries on classics piece 6, can avoid commentaries on classics piece 6 to take place the self-rotation to influence the connecting cylinder 3 and the problem of the firm connection between disengagement pole 1, expand cover 12 through the outer that is equipped with, can be convenient for people quick convenient will disengage pole 1 and insert the connecting cylinder 3 in fix a position the grafting, convenient to use.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (6)

1. The utility model provides an oil gas well test safety release device, includes release rod (1) and attach fitting (2), its characterized in that, the upper end fixedly connected with of attach fitting (2) cup joints connecting cylinder (3) outside release rod (1), cavity (4) have been seted up in the lower extreme rod wall of release rod (1), the bottom inner wall of cavity (4) rotates through ball bearing and is connected with adjusting screw (5), the upper end of adjusting screw (5) runs through the commentaries on classics piece (6) of stretching out upper end and the fixedly connected with rectangle structure of release rod (1) through the through-hole, the rod wall threaded connection that adjusting screw (5) are located cavity (4) has lift screw section of thick bamboo (7), all rotate about lift screw section of thick bamboo (7) mutually the back of the body both sides and be connected with many root circles pole (8), push-and-pull rod (8) keep away from the one end of lift screw section of thick bamboo (7) and rotate and be connected with the deciding of pegging graft corresponding cavity (4) rod wall at release rod (1) The device comprises a position rod (9), a plurality of positioning grooves (10) which are correspondingly inserted with the positioning rod (9) are formed in the inner wall of the connecting cylinder (3), and the upper end of the releasing rod (1) is connected with a limiting mechanism (11) which is used for limiting the rotation of the rotating block (6).

2. An oil and gas well test safety release device as claimed in claim 1, wherein the upper end of the connecting cylinder (3) is fixedly connected with an external expanding cover (12).

3. An oil and gas well test safety release device as claimed in claim 1, characterized in that the release rod (1) and the connecting cylinder (3) are of corresponding rectangular configuration.

4. The oil and gas well test safety release device according to claim 1, wherein the outer wall of the positioning rod (9) is fixedly coated with a layer of damping rubber pad.

5. The oil and gas well test safety release device according to claim 1, wherein the limiting mechanism (11) comprises two elastic telescopic rods (111) which are symmetrically arranged about the rotating block (6) and rotatably connected to the upper end of the release rod (1), the two elastic telescopic rods (111) are fixedly connected with the same pressing plate (112) at the upper end, and the lower end of the pressing plate (112) is fixedly connected with a limiting frame (113) which is in matched clamping connection with the rotating block (6).

6. The oil and gas well test safety release device as claimed in claim 1, wherein the surface of the rotating block (6) is coated with a layer of anti-skid wear-resistant rubber pad.

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