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Downhole gauging device

A technology for downhole measurement and measurement sub-sections, which is applied in the field of oil and gas exploration and can solve the problem of few types of measurement parameters.

Pending Publication Date: 2017-12-08
CHINA UNIV OF PETROLEUM (BEIJING) +1
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Problems solved by technology

[0007] The embodiment of the present invention provides a downhole measurement device to solve the technical problem in the prior art that there are few types of measurement parameters and the measurement is only performed at one point

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Embodiment Construction

[0017] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with the embodiments and accompanying drawings. Here, the exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not to limit the present invention.

[0018] In an embodiment of the present invention, a downhole measurement device is provided, such as figure 1 As shown, the device includes:

[0019] The first measurement sub-joint 100 is used to measure the first engineering parameter near the drill bit downhole, and the first engineering parameter includes vibration engineering parameters and dielectric property engineering parameters;

[0020] The second measuring sub-joint 200 is vertically arranged below the first measuring sub-joint and is closer to the drill bit than the first measuring sub-joint, and is used to measure the second engi...

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Abstract

An embodiment of the invention provides a downhole gauging device. The downhole gauging device comprises a first gauging nipple and a second gauging nipple, wherein the first gauging nipple is used for gauging first engineering parameters for a downhole position near a drill bit, and the first engineering parameters contain vibration type engineering parameters and dielectric property type engineering parameters; the second gauging nipple is vertically arranged below the first gauging nipple, closer to the drill bit than the first gauging nipple and used for gauging second engineering parameters for a downhole position near the drill bit, and the second engineering parameters contain vibration type engineering parameters and dielectric property type engineering parameters; the first engineering parameters and the second engineering parameters are used for recognizing downhole drilling conditions. The same parameter is gauged by the first gauging nipple and the second gauging nipple in different positions, so that double-point gauging of multiple parameters is realized, and the first engineering parameters and the second engineering parameters obtained by gauging can be used for contrastively analyzing and recognizing the downhole drilling conditions.

Description

technical field [0001] The invention relates to the technical field of oil and gas exploration, in particular to a downhole measuring device. Background technique [0002] With the continuous deepening of the exploration and development of international oil and gas resources, global oil and gas exploration is developing in the direction of new strata-deep and ultra-deep layers, new regions-ocean deep water and new types-unconventional oil and gas resources. At the same time, some engineering problems are becoming increasingly prominent when drilling in these deep and complex formations. For example: (1) Safety issues of downhole drilling tools: In deep wells with high temperature and high pressure, the drilling tools are subjected to high load intensity, the downhole drilling pressure and torque are not easy to control, and the drilling tools are more likely to be damaged. (2) Wellbore quality issues: deep formations are mostly gravel layers, carbonate rock layers, and gyps...

Claims

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Application Information

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IPC IPC(8): E21B44/00E21B47/00E21B47/06E21B47/07
CPCE21B44/00E21B47/00E21B47/06E21B47/07
Inventor 柳贡慧李军张涛
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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