CN212272109U

CN212272109U - Compression type testing sealing device for directional well

Info

Publication number: CN212272109U
Application number: CN202022829570.5U
Authority: CN
Inventors: 王志遵; 于敦源; 许敏; 朱玲
Original assignee: DONGYING MINGDE PETROLEUM TECHNOLOGY CO LTD
Current assignee: DONGYING MINGDE PETROLEUM TECHNOLOGY CO LTD
Priority date: 2020-11-30
Filing date: 2020-11-30
Publication date: 2021-01-01
Anticipated expiration: 2030-11-30

Abstract

The utility model provides a directional well compression type test sealing device, include: a lower rigid body; the top of the lower rigid body is provided with a connecting rigid body in a sliding manner; the top of the connecting rigid body is provided with an upper rigid body in a sliding manner; the bottom of the lower rigid body is fixedly provided with a guide block through welding; the top of the guide block is rotatably provided with a control rod through a hinge; through being provided with down the rigid body, connect the rigid body, go up the rigid body, control lever and guide block, fix this device through control lever control stationary dog, when packing up, can make compression packing element and lower compression packing element retract earlier and then pull out it in the directional well, thereby can avoid going up compression packing element and lower compression packing element and producing the friction with the wall of a well at the in-process of pulling, the problem that leads to the packing element to damage, can increase the life of packing element, can be convenient for install and retrieve this device is quick simultaneously, and the operation is simple, therefore, the clothes hanger is strong in practicability, can accelerate the speed and the efficiency of operation.

Description

Compression type testing sealing device for directional well

Technical Field

The utility model belongs to the technical field of the oil is test in the pit, more specifically says, in particular to directional well compression type test sealing device.

Background

The directional well technology is one of the most advanced drilling technologies in the world petroleum exploration and development field, and is a drilling technology which effectively controls a well track through a special downhole tool, a measuring instrument and a process technology to enable a drill bit to drill to a preset underground target along a specific direction. The adoption of the directional well technology can economically and effectively develop oil gas resources with limited ground and underground conditions, greatly improve the oil gas yield and reduce the drilling cost, is favorable for protecting the natural environment, and has remarkable economic and social benefits. Directional drilling is a method of drilling a well bore to a desired formation along a pre-designed well deviation and azimuth.

A patent, for example, patent No. CN201883995U, which has been searched discloses a directional well compression type test sealing tool, which is applied to testing construction under petroleum well. An annular top sleeve is hung on a step in the central hole of the upper joint, and the upper end of the flow body is connected to the lower end of the annular top sleeve. A transverse stratum pressure guide hole is formed in the middle of the overflowing body; an upper rubber sleeve and an upper rubber sleeve pressing cap are sleeved on the upper part of the formation pressure guide hole and the wall of the overflowing body; the lower part of the stratum pressure guide hole is sleeved with a lower rubber cylinder and a lower rubber cylinder pressure cap on the wall of the overflowing body. The central hole at the upper end of the positioning body is sleeved at the lower end of the fluid. Two symmetrical positioning claws are fixed in the transverse groove of the positioning body through a pin shaft. A positioning claw limiting lock sleeve is arranged in a central hole at the lower part of the positioning body; a compression spring is unlocked in a positioning claw limiting lock sleeve, and a cam is fixed in a strip-shaped window of the positioning body 12 through a pin shaft; the lower part of the positioning body is connected with a guide body. The effect is as follows: the test section can be sealed; the test device can be used for carrying out layered pressure test on the directional well and the large-inclination water injection well.

Based on the above, along with the deepening of oil field development, directional wells and large slopes increase year by year, the outer diameter of a conventional test sealing rubber cylinder is larger than the outer diameter of a rigid body, the rubber cylinder, the sealing element and the rigid body of the tool are in interference fit, when the tool is used for lifting and lowering in the directional wells, the rubber cylinder and the sealing element are seriously worn and cannot be effectively sealed, and the existing sealing tool is inconvenient to operate and has high limitation.

Therefore, in view of the above, research and improvement are made on the existing structure and defects, and a directional well compression type test sealing device is provided, so as to achieve the purpose of higher practical value.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a directional well compression type test sealing device to the deepening along with oil field development that proposes in solving above-mentioned background art, directional well and big inclination increase year by year, the sealed packing element external diameter of conventional test is greater than the rigid body external diameter, the rubberizing section of thick bamboo of instrument, sealing member and rigid body interference fit, when the operation has been played down in directional well, packing element and sealing member wearing and tearing are serious, can not effectively seal, the sealing tool that has now is not convenient for operate moreover, the higher problem of limitation.

The utility model discloses directional well compression type test sealing device's purpose and efficiency are reached by following specific technological means: directional well compression test seal assembly comprising: a lower rigid body; the lower rigid body also comprises a sliding rod; sliding rods are fixedly arranged on two sides of the top of the lower rigid body, and springs are sleeved on the outer sides of the middles of the sliding rods; the top of the lower rigid body is provided with a connecting rigid body in a sliding manner, and both sides of the connecting rigid body are provided with slotted holes; the top of the connecting rigid body is provided with an upper rigid body in a sliding manner, and the middle of the top of the upper rigid body is provided with a slotted hole; the bottom of the lower rigid body is fixedly provided with a guide block through welding, and the bottom of the guide block is of a conical structure; the top of the guide block is rotatably provided with a control rod through hinged connection, and the outer side of the top of the control rod is welded with a rotating wheel.

Furthermore, the lower rigid body also comprises a lower compression rubber cylinder and a fixed claw; slotted holes are formed in two sides of the lower rigid body; the top of the lower rigid body is fixedly provided with a lower compression rubber sleeve which is sleeved outside the slide bar; the slotted holes on two sides of the lower rigid body are internally and rotatably provided with fixed claws, and the inner sides of the fixed claws are integrally provided with gears.

Furthermore, the connecting rigid body also comprises a sleeve and an upper compression rubber cylinder; the top of the slotted hole connected with the two sides of the rigid body is fixedly provided with a sleeve, and the sleeve is sleeved outside the spring of the sliding rod; an upper compression rubber cylinder is fixedly arranged at the top of the connecting rigid body and sleeved outside the sliding rod.

Furthermore, the upper rigid body also comprises an installation screw hole; and mounting screw holes are welded on two sides of the top of the upper rigid body.

Furthermore, the guide block also comprises an outer ratchet wheel and a clamping block; the top of the guide block is fixedly provided with an outer ratchet wheel; the inner side of the outer ratchet wheel is provided with a clamping block through a spring connection.

Furthermore, the control rod also comprises an inner ratchet wheel and an inner rod; the top of the control rod is provided with a slotted hole, and one side of the bottom of the control rod is provided with a slotted hole; the bottom of the outer side of the control rod is integrally provided with a gear which is meshed and connected with the gear on the inner side of the fixed claw; an inner ratchet wheel is integrally arranged on the outer side of the bottom of the control rod, and the inner ratchet wheel is meshed with the outer ratchet wheel; an inner rod is arranged in the groove hole at the top of the control rod in a sliding mode, and the bottom of the inner rod is fixedly connected with the clamping block.

Compared with the prior art, the utility model discloses following beneficial effect has:

through being provided with down the rigid body, connect the rigid body, go up the rigid body, control lever and guide block, fix this device through control lever control stationary dog, can connect the rigid body and extrude last compression packing element and lower compression packing element down through last rigid body cooperation, thereby make its inflation expand and seal the pipe wall, when packing up, can make last compression packing element and lower compression packing element retract earlier and then pull out it in the orientation well, thereby can avoid last compression packing element and lower compression packing element to produce the friction with the wall of a well at the in-process of pulling, lead to the problem of packing element damage, can increase the life of packing element, can be convenient for install and retrieve this device is quick simultaneously, and is easy to operate, therefore, the clothes hanger is strong in practicability, can accelerate the speed and the efficiency of operation.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic sectional view of the temple of the present invention.

Fig. 3 is a schematic sectional structural view of the control rod of the present invention.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1. a lower rigid body; 101. a slide bar; 102. a lower compression rubber cylinder; 103. a fixed jaw; 2. connecting rigid bodies; 201. a sleeve; 202. putting a compression rubber cylinder; 3. an upper rigid body; 301. mounting a screw hole; 4. a guide block; 401. an outer ratchet wheel; 402. a clamping block; 5. a control lever; 501. an inner ratchet wheel; 502. an inner rod.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely 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 thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

as shown in figures 1 to 3:

the utility model provides a directional well compression type test sealing device, include: a lower rigid body 1; the lower rigid body 1 further comprises a sliding rod 101; both sides of the top of the lower rigid body 1 are fixedly provided with slide bars 101, and the outer side of the middle of each slide bar 101 is sleeved with a spring; the top of the lower rigid body 1 is provided with a connecting rigid body 2 in a sliding manner, and both sides of the connecting rigid body 2 are provided with slotted holes; wherein, the connecting rigid body 2 further comprises a sleeve 201 and an upper compression rubber cylinder 202; the top of the slotted hole connected with the two sides of the rigid body 2 is fixedly provided with a sleeve 201, and the sleeve 201 is sleeved outside the spring of the sliding rod 101; an upper compression rubber cylinder 202 is fixedly arranged at the top of the connecting rigid body 2, and the upper compression rubber cylinder 202 is sleeved outside the sliding rod 101; the top of the connecting rigid body 2 is provided with an upper rigid body 3 in a sliding way, and the middle of the top of the upper rigid body 3 is provided with a slotted hole; wherein, the upper rigid body 3 also comprises an installation screw hole 301; mounting screw holes 301 are welded on both sides of the top of the upper rigid body 3; the bottom of the lower rigid body 1 is fixedly provided with a guide block 4 by welding, and the bottom of the guide block 4 is of a conical structure; wherein, the guide block 4 further comprises an outer ratchet wheel 401 and a clamping block 402; the top of the guide block 4 is fixedly provided with an outer ratchet wheel 401; a fixture block 402 is connected and arranged on the inner side of the outer ratchet wheel 401 through a spring; the top of the guide block 4 is rotatably provided with a control rod 5 through hinged connection, and the outer side of the top of the control rod 5 is welded with a rotating wheel.

Wherein, the lower rigid body 1 also comprises a lower compression rubber cylinder 102 and a fixed claw 103; slotted holes are formed in two sides of the lower rigid body 1; the top of the lower rigid body 1 is fixedly provided with a lower compression rubber cylinder 102, and the outer side of the sliding rod 101 is sleeved with the lower compression rubber cylinder 102; the fixing claws 103 are rotatably arranged in the slotted holes at the two sides of the lower rigid body 1, and the inner sides of the fixing claws 103 are integrally provided with gears; by arranging the lower compression rubber cylinder 102, the lower compression rubber cylinder 102 can be expanded outwards by extruding the lower rigid body 1 and the connecting rigid body 2 on the lower compression rubber cylinder 102, so that the inner side of the pipe wall is sealed.

Wherein, the control rod 5 also comprises an inner ratchet 501 and an inner rod 502; the top of the control rod 5 is provided with a slotted hole, and one side of the bottom of the control rod 5 is provided with a slotted hole; the bottom of the outer side of the control rod 5 is integrally provided with a gear which is meshed and connected with the gear on the inner side of the fixed claw 103; an inner ratchet wheel 501 is integrally arranged on the outer side of the bottom of the control rod 5, and the inner ratchet wheel 501 is meshed with the outer ratchet wheel 401; an inner rod 502 is arranged in a groove hole in the top of the control rod 5 in a sliding mode, and the bottom of the inner rod 502 is fixedly connected with the fixture block 402; when the control lever 5 is rotated, the control lever 5 is fixed by the engagement of the inner ratchet 501 and the outer ratchet 401, and the fixing claws 103 can be rotated and spread to both sides while the control lever 5 is rotated.

The specific use mode and function of the embodiment are as follows:

in the utility model, the fixed connecting tools are respectively arranged at the top of the control rod 5 and the inner rod 502 according to the depth of the positioning well, and the mandril is fixedly arranged at the mounting screw hole 301; the device is connected and thrown into a positioning well through a steel wire rope, after the device reaches a sealing section, a control rod 5 is rotated, two groups of fixing claws 103 are driven to rotate towards two sides through gear transmission, the device is fixed, then an ejector rod is jacked to drive an upper rigid body 3 to press downwards along a sliding rod 101, under the action of jacking force, the upper rigid body 3 can press an upper compression rubber cylinder 202 and enable the upper compression rubber cylinder 202 to expand towards the outer side, after the upper compression rubber cylinder 202 expands to a certain amount, the upper rigid body 3 jacks a spring on the outer side of the sliding rod 101 and contacts a sleeve 201 on the top of a connecting rigid body 2, the upper compression rubber cylinder 202 is jacked to synchronously slide along the sliding rod 101 with the connecting rigid body 2, at the moment, the lower compression rubber cylinder 102 can be squeezed and expand towards the outer side through the pressure provided by the connecting rigid body 2, and after the certain expansion amount is reached, the sealing of; after the test is finished, the inner rod 502 is pulled upwards to drive the fixture block 402 to slide upwards, the clamping effect on the inner ratchet wheel 501 is removed, the fixing claw 103 is retracted by rotating the control rod 5 reversely at the moment, then the upper rigid body 3 is pulled upwards, the upper compression rubber cylinder 202 and the lower compression rubber cylinder 102 are retracted after the pressure is removed, and then the device is retracted.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. Directional well compression test sealing device, its characterized in that includes: a lower rigid body (1); the lower rigid body (1) also comprises a sliding rod (101); sliding rods (101) are fixedly arranged on two sides of the top of the lower rigid body (1), and springs are sleeved on the outer sides of the middles of the sliding rods (101); the top of the lower rigid body (1) is provided with a connecting rigid body (2) in a sliding manner, and both sides of the connecting rigid body (2) are provided with slotted holes; the top of the connecting rigid body (2) is provided with an upper rigid body (3) in a sliding manner, and the middle of the top of the upper rigid body (3) is provided with a slotted hole; the bottom of the lower rigid body (1) is fixedly provided with a guide block (4) by welding, and the bottom of the guide block (4) is of a conical structure; the top of the guide block (4) is rotatably provided with a control rod (5) through hinged connection, and the outer side of the top of the control rod (5) is welded with a rotating wheel.

2. The directional well compressive test seal as claimed in claim 1, wherein: the lower rigid body (1) also comprises a lower compression rubber cylinder (102) and a fixed claw (103); slotted holes are formed in the two sides of the lower rigid body (1); the top of the lower rigid body (1) is fixedly provided with a lower compression rubber cylinder (102), and the outer side of the sliding rod (101) is sleeved with the lower compression rubber cylinder (102); the fixing claws (103) are rotationally arranged in the slotted holes at the two sides of the lower rigid body (1), and the inner sides of the fixing claws (103) are integrally provided with gears.

3. The directional well compressive test seal as claimed in claim 1, wherein: the connecting rigid body (2) also comprises a sleeve (201) and an upper compression rubber cylinder (202); the top of the slotted hole at two sides of the connecting rigid body (2) is fixedly provided with a sleeve (201), and the sleeve (201) is sleeved outside the spring of the sliding rod (101); an upper compression rubber cylinder (202) is fixedly arranged at the top of the connecting rigid body (2), and the outer side of the sliding rod (101) is sleeved with the upper compression rubber cylinder (202).

4. The directional well compressive test seal as claimed in claim 1, wherein: the upper rigid body (3) also comprises an installation screw hole (301); mounting screw holes (301) are welded on two sides of the top of the upper rigid body (3).

5. The directional well compressive test seal as claimed in claim 1, wherein: the guide block (4) further comprises an outer ratchet wheel (401) and a clamping block (402); the top of the guide block (4) is fixedly provided with an outer ratchet wheel (401); the inner side of the outer ratchet wheel (401) is provided with a fixture block (402) through a spring connection.

6. The directional well compressive test seal as claimed in claim 1, wherein: the control rod (5) further comprises an inner ratchet wheel (501) and an inner rod (502); the top of the control rod (5) is provided with a slotted hole, and one side of the bottom of the control rod (5) is provided with a slotted hole; the bottom of the outer side of the control rod (5) is integrally provided with a gear which is meshed and connected with the gear on the inner side of the fixed claw (103); an inner ratchet wheel (501) is integrally arranged on the outer side of the bottom of the control rod (5), and the inner ratchet wheel (501) is meshed with the outer ratchet wheel (401); an inner rod (502) is arranged in a groove hole in the top of the control rod (5) in a sliding mode, and the bottom of the inner rod (502) is fixedly connected with the clamping block (402).