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Well mouth operation visualization device and method

A technology of operation and camera device, which is applied in earth-moving drilling, closed-circuit television system, wellbore/well components, etc., can solve problems such as fish falling into the bottom of the well, underground accidents, etc., and achieve the effect of avoiding underground accidents and clear pictures.

Active Publication Date: 2019-12-20
PETROCHINA CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a visualization device for wellhead operations to solve the problem that in the prior art, during the salvage operation, the fish still in the gas tree may be cut off, and some of the fish may fall into the bottom of the well again. , resulting in serious technical problems in downhole accidents

Method used

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  • Well mouth operation visualization device and method
  • Well mouth operation visualization device and method

Examples

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Embodiment 1

[0049] A wellhead operation visualization device provided by the present invention includes a wellhead camera device 12 installed above the wellhead, and the wellhead camera device 12 at least includes a mounting seat 1, a camera mechanism 2 and a touch screen 3;

[0050] The mounting seat 1 has a hollow channel 4 that runs through from one end to the other end; and the two ends of the mounting seat 1 are respectively provided with an upper joint 5 for connecting with the operating device during wellhead operation and for connecting with the wellhead The lower joint 6 connected to the wellhead device;

[0051] The camera mechanism 2 is movably installed in the mounting seat 1, and the camera mechanism 2 includes at least one camera, the camera extends into the hollow passage 4, and the position of the camera corresponds to the position of the wellhead, the outside of the camera The sleeve is provided with a transparent anti-pressure protective cover 7, which is used to protect...

Embodiment 2

[0076] The present invention provides a method for visualizing wellhead operations, using the above-mentioned device for wellhead operations.

[0077] Such as Figure 7 with Figure 8 As shown, taking steel wire work as an example, it includes the following steps:

[0078] (1) Install the wellhead operation visualization device in the above-mentioned embodiment 1 above the wellhead through the upper joint 5 and the lower joint 6; then carry out the steel wire operation normally, and lift the tool string in place after the steel wire operation;

[0079] When installing the visualization device for wellhead operations, the oil pressure gauge flange of the gas tree needs to be removed first, the oil pipe head 13 of the gas tree is connected to the lower joint 6 by bolts, and the upper working devices such as the blowout preventer 11 are connected to the upper joint 5-phase connection; generally speaking, the entire wellhead camera device 12 is recommended to be installed in the...

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Abstract

The invention provides a well mouth operation visualization device, and solves the technical problem of bad underground accidents caused by falling of part of falling fishes into the well mouth againdue to possible cutting off of the falling fishes still in gas production trees during salvaging in the prior art. The device comprises a well mouth camera device; the well mouth camera device at least comprises a mounting base, a camera mechanism and a touch screen; the mounting base is provided with a hollow channel penetrating from one end to the other end; an upper joint and a lower joint arearranged at the two ends of the mounting base; and the camera mechanism is movably mounted in the mounting base. The device can directly help scene operators judge if tool strings pass through such well mouth devices as gas production trees under the condition of not influencing normal well mouth operation, so that the condition of cutting off of the falling fishes caused by wrong closing of wellmouth valves is totally prevented, and the underground accidents are prevented.

Description

technical field [0001] The invention relates to the field of petroleum and natural gas workover engineering, in particular to a wellhead operation visualization device and method thereof. Background technique [0002] During the whole process of oil and natural gas extraction, downhole operations such as workover, logging, and fishing are usually required. Well workover, well logging, fishing and other processes are all carried out by installing corresponding equipment on wellhead devices such as gas trees. Generally, steel wire operations are mainly used, and cable operations, snubbing operations (snubbing operations), coiled tubing operations, etc. are also included. . The equipment installed on the gas tree for steel wire operation includes blowout preventer, blowout preventer, etc., which are connected to the gas tree with the flange of the oil pressure gauge removed through the conversion flange. After the steel wire operation is completed, the entire tool string will...

Claims

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Application Information

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IPC IPC(8): E21B41/00H04N7/18
CPCE21B41/00H04N7/18
Inventor 唐诗国喻成刚许定江覃芳缪云杨海杨永韬罗伟李辰
Owner PETROCHINA CO LTD
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