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Differential temperature and pressure tester for horizontal well for thermal recovery

A technology for horizontal wells and testers, which is used in wellbore/well components, measurement, earth-moving drilling and production, etc. It can solve the problem of not ensuring uniform steam absorption, liquid production, inefficiency, and inability to fully utilize horizontal well sections in long horizontal sections. And other issues

Inactive Publication Date: 2013-05-01
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology

[0002] With the development of supporting technology for thermal recovery of horizontal wells, the application field and scale of horizontal wells have been continuously expanded, and the application of heavy oil horizontal wells has also changed from scattered to overall. However, the previous tests and experiments have shown that due to the long horizontal The mining technology cannot guarantee uniform steam absorption and liquid production in the long horizontal section, and the horizontal well section cannot be fully developed after multiple rounds of huff and puff. question

Method used

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  • Differential temperature and pressure tester for horizontal well for thermal recovery

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Embodiment Construction

[0015] In order to make the above and other objects, features and advantages of the present invention more comprehensible, preferred embodiments are listed below and described in detail in conjunction with the accompanying drawings.

[0016] Such as figure 1 as shown, figure 1 It is a structural diagram of the thermal recovery horizontal well differential well temperature and well pressure tester of the present invention. The thermal recovery horizontal well differential well temperature and well pressure tester consists of a guide head 1, a first temperature sensor 2, a second temperature sensor 3, an anti-collision spring 4, a pressure sensor probe 5, a tightening nut 6, a sealing copper Pad 7, sensor body seat 8, instrument inner protection cylinder 9, thermos bottle 10, data acquisition circuit 11, instrument outer protection cylinder 12, damping spring 13, plug 14, reducing joint 15 and tubing collar 16.

[0017] The guide head 1 can ensure that the instrument is smooth...

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Abstract

The invention provides a differential temperature and pressure tester for a horizontal well for thermal recovery. A first temperature sensor and a second temperature sensor are arranged at a certain distance for temperature measurement, and a pressure sensor probe is used for measuring pressure; a data acquisition circuit is positioned in a thermos and acquires temperature and pressure data; and the thermos protects the data acquisition circuit against the impact of high temperature, and a protective cylinder in the tester is a protective cylinder of the thermos. The differential temperature and pressure tester for the horizontal well for thermal recovery solves the problems that the uniform vapor suction and liquid production of a long horizontal segment can not be ensured, the horizontal well segment can not be fully utilized after multi-cycle of huff and puff, and many horizontal wells for thermal recovery are inefficient and the like in the prior art are solved, and has the advantages of realization of differential temperature and pressure testing of the horizontal well, high temperature high pressure resistance and reliable and secure testing.

Description

technical field [0001] The invention relates to a profile test device in the development process of the petroleum industry, in particular to a differential well temperature and well pressure tester for a thermal recovery horizontal well. Background technique [0002] With the development of supporting technologies for thermal recovery of horizontal wells, the application fields and scale of horizontal wells have been continuously expanded, and the application of heavy oil horizontal wells has also changed from scattered to overall. The mining technology cannot guarantee uniform steam absorption and liquid production in the long horizontal section, and the horizontal well section cannot be fully developed after multiple rounds of huff and puff. question. In view of this situation, we have invented a new differential well temperature and well pressure tester for thermal recovery horizontal wells. During the steaming process, the steam absorption and fluid production of each ...

Claims

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Application Information

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IPC IPC(8): E21B47/06E21B47/07E21B47/017
Inventor 刘明吴国伟盖平原姜泽菊李友平陈连喜王来胜黄志宏徐建辉安申法戴宇婷
Owner CHINA PETROLEUM & CHEM CORP
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