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Device for measuring and sampling fluid pressure in exploration stratum

A technology of fluid pressure and sampling device, which is applied in measurement, wellbore/well components, earthwork drilling and production, etc. It can solve problems such as easy to get stuck, large diameter of short joint, etc.

Active Publication Date: 2016-11-23
王少斌
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the pup joints with the same function in the market have a relatively large diameter, basically 120mm or more, and this kind of pup joints with a larger diameter are currently used When there are oil wells with small diameters, it is easy to get stuck during downhole operations
At present, there is still no suitable device in the domestic market that can complete the formation pressure measurement and sampling of small diameter oil wells with high quality

Method used

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  • Device for measuring and sampling fluid pressure in exploration stratum
  • Device for measuring and sampling fluid pressure in exploration stratum
  • Device for measuring and sampling fluid pressure in exploration stratum

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Embodiment Construction

[0028] In order to better understand the purpose, structural features and functions of the present invention, the structure, working process and functions of the preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0029] Figure 1A It is a general integration diagram of a specific embodiment of the measurement and sampling device for the internal fluid pressure of the exploration formation described in the present invention, Figure 1B for Figure 1A The left view of the total integration diagram shown, Figure 1C for Figure 1A Right side view of the total integration plot shown. Such as Figures 1A-1C As shown, this embodiment includes an upper joint assembly TA, an integrated oil circuit control valve seat TB, an integrated pump valve seat TC, an integrated sample control valve seat TD, and a sample valve control assembly TE, which are sequentially arranged on the main body. , and the lower join...

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Abstract

The invention provides a device for measuring and sampling fluid pressure in an exploration stratum, comprising an upper connector component sub TA, an integrated oil circuit control valve seat sub TB, an integrated pump valve seat sub TC, an integrated sample control valve seat sub TD, a sample valve control assembly sub TE and a lower connector assembly sub TF that are arranged sequentially, wherein oil circuit connector quick components, sample connector quick components and electrical connectors among the subs are all precisely and stably butted together; by using the device for measuring and sampling stratum pressure, it is possible to use the device in oil wells with small diameter, and the device is rarely jammed at downhole.

Description

technical field [0001] The invention relates to a petroleum prospecting device, in particular to a measuring and sampling device for fluid pressure inside an exploration formation in a small-diameter oil well. Background technique [0002] In the process of oil extraction, it is necessary to measure the fluid pressure inside the formation, so as to accurately determine the position of the oil layer, and then facilitate oil extraction. In addition, in the process of oil extraction, it is necessary to take a part of the bottom layer samples from the oil well for laboratory analysis. [0003] At present, the pup joints with the same function on the market have a relatively large diameter, basically 120mm or more, and when this kind of pup joint with a larger diameter is used in an existing oil well with a smaller diameter, it is easy to operate in the downhole operation. In case of card. At present, there is still no suitable device capable of high-quality formation pressure ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B47/06E21B49/08
CPCE21B47/06E21B49/083
Inventor 王少斌
Owner 王少斌
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