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Coupling sensing device for operation under pressure

A technology for pressurized operation and sensing device, which is used in surveying, wellbore/well components, sealing/packaging, etc., can solve the problems of large detection error, high false alarm rate, low reliability, etc. Accuracy rate, accurate detection results, avoid the effect of out-of-center

Pending Publication Date: 2018-06-22
西安宇星石油机械新技术开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The installation of the electromagnetic induction structure is complicated, and it is affected by factors such as the instantaneous instability of the external power supply, oil pollution and metal materials on the work site, resulting in large detection errors and low reliability.
However, due to the misalignment of the wellhead string, the detection results of the axial mechanical sensing type are affected, and the false alarm rate is high.

Method used

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  • Coupling sensing device for operation under pressure
  • Coupling sensing device for operation under pressure
  • Coupling sensing device for operation under pressure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Such as figure 1 , 2 , 3, 4 shows a pressure-operated coupling sensor device, including a main body 1, the two sides of the inner channel of the main body 1 are respectively provided with installation cavities 2, and the installation cavities 2 on both sides are respectively provided with a second A probe assembly 3 and a second probe assembly 5, the heads of the first probe assembly 3 and the second probe assembly 5 respectively extend into the inner channel of the main body 1 and are arranged oppositely; The end of the probe assembly 3 is fixedly connected to the first rotating shaft 4 that passes through the installation cavity 2 on the side of the inner channel of the main body 1, and the end of the second probe assembly 5 is connected to the inner passage of the main body 1. The second rotation shaft 6 in the installation cavity 2 on the other side of the passage is fixedly connected, and the first rotation shaft 4 and the second rotation shaft 6 are respectively ...

Embodiment 2

[0038] On the basis of Example 1, such as Image 6 The first probe assembly 3 includes a fixed end 301, a probe 302 fixed on the fixed end 301, the probe 302 is provided with a mounting base 303, and the mounting base 303 is provided with a compression spring 304, so The middle part of the first rotating shaft 4 passes through the fixed end 301 and is fixedly connected with the fixed end 301;

[0039] The first probe assembly 3 and the second probe assembly 4 are the same;

[0040] Such as Figure 5 The ejector rod mechanism 7 includes a first rotating rod 701, a second rotating rod 702, a first ejector rod 703 and a second ejector rod 704, and the first ejector rod 703 and the second ejector rod 704 are arranged on the top in parallel. on the rod seat 705, and the first push rod 703 and the second push rod 704 are movably connected with the push rod seat 705; the two ends of the first rotating rod 701 are respectively movable with the first push rod 703 and the second push ro...

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PUM

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Abstract

The invention relates to a coupling sensing device for operation under pressure. The coupling sensing device comprises a main body, a first probe assembly and a second probe assembly. The heads of thefirst probe assembly and the second probe assembly extend to an internal channel of the main body and are arranged oppositely. The end of the first probe assembly is fixedly connected with a first rotating shaft, and the end of the second probe assembly is fixedly connected with a second rotating shaft; one end of the first rotating shaft extends out of the main body and is connected with a jacking rod mechanism arranged on one side face of the main body, and the other end of the second rotating shaft extends out of the main body and is connected with a gear mechanism arranged on the other side face of the main body; one end of the second rotating shaft extends out of the main body and is connected with a gear mechanism; and a rotary sensor is fixedly mounted on the jacking rod mechanism.The structure is reasonable, the probe result is accurate, and non-centering of an axial mechanical induction type pipe column is avoided; and misjudgment caused by the influences of instability of an electromagnetic induction type power source and oil stain media on the pipe wall is avoided, the probe accuracy rate is greatly increased, and the working efficiency of operation is improved greatly.

Description

technical field [0001] The invention relates to the technical field of oil and gas field development, in particular to a sensing device for a coupling of a pressure operation. Background technique [0002] When oil wells, water injection wells or gas wells are used for tripping and tripping tubing, under the condition of pressure in the well, it is usually necessary to kill the well or blow out to reduce the pressure first. Because well killing is easy to pollute the formation, blowout will reduce local formation pressure and cause ground pollution. Therefore, the operation measures of not killing the well and not blowout have been paid more and more attention to and promoted by various oil fields. [0003] Snubbing technology refers to a method of forced operation without snubbing and blowout when there is pressure in the well. In the process of workover in the oil field, the blowout preventer must be installed at the wellhead, and the pipe string must be continuously lift...

Claims

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Application Information

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IPC IPC(8): E21B47/09E21B33/06
CPCE21B33/06E21B47/09
Inventor 唐永生张远斌潘艳萍詹益旺雍力戈邢建峰王利娜胡慧婷韩敏韩玮雷宽成李绪宜
Owner 西安宇星石油机械新技术开发有限公司