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Test device for downhole tool and test system for downhole tool

A technology of downhole tools and test equipment, which is applied in the directions of wellbore/well components, measurement, sealing/isolation, etc., and can solve the problems that are not suitable for downhole tool action tests, etc.

Active Publication Date: 2020-01-07
PETROCHINA CO LTD
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  • Abstract
  • Description
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Problems solved by technology

[0004] In order to meet the high-temperature simulation test requirements of downhole tools with lifting and lowering actions, Chinese patent ZL201220740708.7, entitled "Oilfield downhole tool test wellhead device", discloses a test device, but this device is not suitable for action tests of downhole tools

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  • Test device for downhole tool and test system for downhole tool
  • Test device for downhole tool and test system for downhole tool
  • Test device for downhole tool and test system for downhole tool

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Embodiment Construction

[0041] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0042] refer to figure 1 As shown, the embodiment of the present application discloses a test device for a downhole tool 38 , including an external mechanism and a central rod 10 . The central rod 10 passes through the external mechanism. The central rod 10 can move vertically relative to the external mechanism. A first chamber 27 is formed between the central rod 10 and the external mechanism. The lower part of the central rod 10 is used for connecting with a downhole tool 38 . The lower part of the central rod 10 is provided with a second chamber 28 capable of acting on the downhole tool 38 by the fluid flowing into it. The external mechani...

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Abstract

The invention discloses a test device for an underground tool and a test system for the underground tool. The test device for the underground tool comprises an external mechanism and a center rod, wherein the center rod penetrates into the external mechanism; the center rod can move along a vertical direction of the external mechanism; a first chamber is formed between the center rod and the external mechanism; a first opening which is communicated with the first chamber is formed in the external mechanism; a second chamber is arranged on the center rod; the upper part of the second chamber is sealed; the lower part of the second chamber of the center rod is opened; the lower part of the center rod is used for connecting the underground tool; and a second opening for communicating the first chamber and the second chamber is formed in the center rod. With such a structure, the underground tool can be tested under more underground conditions.

Description

technical field [0001] The invention relates to the field of oil and gas field exploitation, in particular to a test device for downhole tools and a test system for downhole tools. Background technique [0002] In the field of petroleum production, especially in the exploitation of heavy oil, high-temperature-resistant downhole tools are indispensable in the supporting technologies of steam huff and puff, steam flooding, SAGD, combustion of oil layers, and steam injection-assisted thermal recovery, and their quality directly affects The success or failure of heavy oil development process measures. In recent years, there are more and more types of downhole tools used in various oil fields, and the requirements are getting higher and higher, especially for downhole tools that are resistant to high temperatures and have lifting and lowering actions. [0003] At present, the medium heating and circulation system of the indoor high-temperature simulation test system and the well...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B47/00E21B33/10
CPCE21B33/10E21B47/00
Inventor 田播源曹建王淑陈平庞晓坤
Owner PETROCHINA CO LTD
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