Insertion sealing equipment and use method

A technology for inserting seals and equipment, which is applied in drilling equipment, sealing/package, earthwork drilling and production, etc. It can solve the problems of reduced sealing effect, difficult operability, and failure of pipe strings, so as to reduce processing technology requirements and improve reliability. Improvement of operability and safety

Pending Publication Date: 2022-03-11
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main problems are as follows: first, the sealing part adopts rubber parts with interference fit with the sealing cylinder, which is easy to wear after a long time in the well, and the sealing effect becomes poor; Part of it is easy to damage the cable sealing joint and the cable itself, causing a short circuit and making the pipe column invalid; third, when the cable passes through the plug-in device as a whole, it is difficult to operate on site, and the cable needs to be cut and the matching connector is added, which increases the risk point of the process technology ; Fourth, when the plug-in cable hole adopts an offset setting, the center line of the plug-in seal is not centered, which reduces the sealing effect

Method used

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  • Insertion sealing equipment and use method
  • Insertion sealing equipment and use method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] see Figure 1 to Figure 2 , the present invention provides a technical solution:

[0043] An insertion sealing device, comprising a sealing seat 3 and a sealing mechanism, the center of the sealing seat is provided with an axial through hole, and the sealing mechanism is set on the outer wall of the sealing seat;

[0044] The sealing mechanism includes an upper sealing unit, a lower sealing unit, and an adjustment ring 8 that are all set on the outside of the sealing seat; the upper sealing unit and the lower sealing unit have the same structure and are arranged symmetrically;

[0045] The inner wall of the adjusting ring is connected with the outer wall of the sealing seat by thread; the upper end surface of the adjusting ring is in contact with the bottom of the upper sealing unit, and the lower end surface of the adjusting ring is in contact with the lower sealing unit;

[0046] The upper sealing unit or the lower sealing unit includes a concave spacer ring 4, a con...

Embodiment 2

[0065] see Figure 1 to Figure 2 , the present invention provides a technical solution:

[0066] An insertion sealing device, comprising a sealing seat 3 and a sealing mechanism, the center of the sealing seat is provided with an axial through hole, and the sealing mechanism is set on the outer wall of the sealing seat;

[0067] The sealing mechanism includes an upper sealing unit, a lower sealing unit, and an adjustment ring 8 that are all set on the outside of the sealing seat; the upper sealing unit and the lower sealing unit have the same structure and are arranged symmetrically;

[0068] The inner wall of the adjusting ring is connected with the outer wall of the sealing seat by thread; the upper end surface of the adjusting ring is in contact with the bottom of the upper sealing unit, and the lower end surface of the adjusting ring is in contact with the lower sealing unit;

[0069] The upper sealing unit or the lower sealing unit includes a concave spacer ring 4, a con...

Embodiment 3

[0076] see Figure 1 to Figure 2 , the present invention provides a technical solution:

[0077] An insertion sealing device, comprising a sealing seat 3 and a sealing mechanism, the center of the sealing seat is provided with an axial through hole, and the sealing mechanism is set on the outer wall of the sealing seat;

[0078] The sealing mechanism includes an upper sealing unit, a lower sealing unit, and an adjustment ring 8 that are all set on the outside of the sealing seat; the upper sealing unit and the lower sealing unit have the same structure and are arranged symmetrically;

[0079] The inner wall of the adjusting ring is connected with the outer wall of the sealing seat by thread; the upper end surface of the adjusting ring is in contact with the bottom of the upper sealing unit, and the lower end surface of the adjusting ring is in contact with the lower sealing unit;

[0080]The upper sealing unit or the lower sealing unit includes a concave spacer ring 4, a conv...

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Abstract

The invention discloses insertion sealing equipment and a using method, the insertion sealing equipment comprises a sealing seat and a sealing mechanism, an axial through hole is formed in the center of the sealing seat, and the sealing mechanism is arranged on the outer wall of the sealing seat in a sleeving mode; the sealing mechanism comprises an upper sealing unit, a lower sealing unit and an adjusting ring which are arranged outside the sealing seat in a sleeving manner; the upper sealing unit and the lower sealing unit are of the same structure and are symmetrically arranged. The inner wall of the adjusting ring is in screwed connection with the outer wall of the sealing seat; the upper end face of the adjusting ring makes contact with the bottom of the upper sealing unit, and the lower end face of the adjusting ring makes contact with the lower sealing unit. The device has the cable penetrating and well washing functions, and the purposes of long-acting sealing, safe tripping-in and convenient use are achieved.

Description

technical field [0001] The invention relates to the technical field of layered sand control and layered water injection, in particular to an insertion sealing device and a usage method. Background technique [0002] At present, in offshore oilfields, intelligent layered sand control and layered water injection strings generally adopt the method of inserting and sealing to achieve layering. Well Intelligent Layered Oil Production String and Its Operation Method" as an example, there are two main functions: one is to cooperate with the sealing nipple (sealing cylinder) to realize the isolation of the layer; the other is the carrier for the cable to pass through. The main problems are as follows: first, the sealing part adopts rubber parts with interference fit with the sealing cylinder, which is easy to wear after a long time in the well, and the sealing effect becomes poor; Part of it is easy to damage the cable sealing joint and the cable itself, causing a short circuit and...

Claims

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Application Information

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IPC IPC(8): E21B33/126E21B21/10E21B17/10E21B17/02E21B43/20E21B43/14E21B21/00
CPCE21B33/126E21B33/1208E21B21/103E21B17/1035E21B17/1085E21B17/02E21B43/20E21B43/14E21B21/00
Inventor 孟勇李永康刘晋伟张卫卫张紫檀郭慧罗杨崔洪辰孙鑫宁黄志宏
Owner CHINA PETROLEUM & CHEM CORP
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