Well logging detector device

A geophone and well logging technology, which is applied to seismology for well logging records, wellbore/well components, seismic signal receivers, etc. It can solve problems such as inconvenient operation and inability to automatically complete the retracting action of the arm , to achieve a good pushing effect, easy to fold and use in the next construction, and a simple structure

Inactive Publication Date: 2009-09-30
WEIHAI SUNFULL GEOPHYSICAL EXPLORATION EQUIP
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

This structure can only complete the pop-up action, and cannot automatically complete the arm retraction action. When the arm is not required to be ope

Method used

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Embodiment Construction

[0011] from figure 1 , figure 2 It can be seen from the figure that a well logging detector device of the present invention has a main body 17 of a cylindrical structure, and a counterweight 15 and a signal receiving device 14 are installed in the lower part in sequence. The end of the counterweight body 15 is streamlined, and the overall weight can be increased by changing its length. The effect is to facilitate the sinking of the main body of the well logging detector device to the bottom of the well logging in a muddy environment. The inside of the signal receiving device 14 is sealed with three geophones distributed in a Cartesian coordinate system to form a three-component geophone for receiving seismic signals from multiple directions, and a signal transmission cable 1 is connected along the main body 17 and the metal hose 3. The inner wall is connected to seismic instruments on the ground.

[0012] The main body 17 of the present invention is equipped with 3 parts of...

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Abstract

The invention relates to a well logging detector device, which comprises a main body internally provided with a cylindrical structure, a weight body, a signal receiving device, a push-support device , a lift-pull device and a metal hose, wherein the signal receiving device is internally sealed with three detectors which are connected with a seismic apparatus on the ground by a cable along the main body and the inner wall of the metal hose; the push-support device is formed by a double-action circular cylinder, a supporting arm and a four-link mechanism; the link mechanism comprises a piston rod, a push rod, a supporting arm fixed block and a rotary block; a wire rope of the lift-pull device is fixed on a mandrel of the main body; and the metal hose is connected with an upper end cover of the main body. The push-support device adopts a mechanical push arm mode, has the characteristics of simple structure, convenient operation and accurate push-support position, and is convenient to gather and use in next construction. The well logging detector device is suitable for well logging and wave detection of oil seismic exploration, geological mining, constructional engineering, and the like.

Description

technical field [0001] The invention relates to a seismic detection device, in particular to a logging detection device. Background technique [0002] We know that geophones are an essential tool for geological exploration in petroleum and coal industries. A geophone generally includes a geophone core, a protective shell, a transmission cable, etc., and the geophone core is installed and fixed in the protective shell as a sensor. In use, in order to obtain accurate and clear signals and parameter values, it is generally required that the geophone and the ground to be tested or the wall of the hole be in close contact and the pushing position is accurate. Whether the signal receiving unit equipped with a geophone core and used to pick up seismic signals can be well coupled with the underground rock formation directly determines the correctness of the seismic signal. Only the geophone core can correctly pick up the seismic signal. The relevant analysis instrument can play a ...

Claims

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Application Information

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IPC IPC(8): G01V1/18G01V1/40E21B49/00
Inventor 颜永安孙中心申恒广刘杰烈赵冰星学奎胡立新张栋宋智勇杨德宽
Owner WEIHAI SUNFULL GEOPHYSICAL EXPLORATION EQUIP
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