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Gamma azimuth measuring device and collecting method

An azimuth gamma, measuring device technology, applied in the directions of measuring device, surveying, earthwork drilling and mining, etc., can solve the problems of inability to judge and identify complex formation properties and formation changes, and inability to accurately judge the direction of gamma, so as to improve the The effect of the encounter rate

Active Publication Date: 2017-01-04
上海神开石油测控技术有限公司 +3
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Problems solved by technology

[0002] At present, many manufacturers in the field of oil logging while drilling have launched natural gamma logging devices, but this kind of natural gamma only collects gamma values ​​in all directions in the environment where the sensor is located, and cannot accurately determine the direction of gamma, and cannot judge and identify the properties and changes of complex formations

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  • Gamma azimuth measuring device and collecting method
  • Gamma azimuth measuring device and collecting method

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Embodiment Construction

[0036] Specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0037] Such as figure 1 As shown, it is an embodiment of an azimuth gamma measurement device disclosed in the present invention, the azimuth gamma measurement device includes: a focus gamma sensor 100, a three-axis accelerometer 200, a three-axis fluxgate 300 and a microcontroller 400 . The input terminal of the microcontroller 400 is communicatively connected with the focusing gamma sensor 100 , the three-axis accelerometer 200 and the three-axis fluxgate 300 .

[0038] The input terminal of the microcontroller 400 is connected in communication and receives the posture of the focusing gamma sensor 100 in the formation and the normal direction information of the probe collected by the three-axis accelerometer 200 and the three-axis fluxgate 300, and the gamma collected by the focusing gamma sensor 100 Count value, so as to get the gamma count ...

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Abstract

The invention discloses a gamma azimuth measuring device. The gamma azimuth measuring device comprises a focusing gamma sensor, a triaxial accelerometer, a triaxial fluxgate and a microcontroller, wherein the focusing gamma sensor is used for collecting gamma count values; the triaxial accelerometer and the triaxial fluxgate are used for determining the posture of the focusing gamma sensor in a stratum and the normal direction of a probe correspondingly, and the triaxial directions of the triaxial accelerometer and the triaxial fluxgate are the same; and the input end of the microcontroller is connected in a communication mode and receives the information of the posture of the focusing gamma sensor in the stratum and the normal direction of the probe collected by the triaxial accelerometer and the triaxial fluxgate correspondingly and the gamma count values collected by the focusing gamma sensor, so that the gamma count values of all directions are obtained. According to the gamma azimuth measuring device and the collecting method, gamma rays in all the directions can be continuous measured, the nature of the stratum and the change conditions of the stratum can be judged and identified, gamma data can be collected and resolved to one direction, azimuth measuring of the gamma data can be achieved, and drilling encountering efficiency can be largely improved no matter what posture that the gamma sensor is in and rotates at different rotating speeds.

Description

technical field [0001] The invention relates to the field of petroleum logging while drilling, in particular to an azimuth gamma measurement device and a collection method. Background technique [0002] At present, many manufacturers in the field of oil logging while drilling have launched natural gamma logging devices, but this kind of natural gamma only collects gamma values ​​in all directions in the environment where the sensor is located, and cannot accurately determine the direction of gamma, and cannot judge and identify the properties and changes of complex formations. Contents of the invention [0003] The invention provides an azimuth gamma measuring device and acquisition method, capable of measuring gamma values ​​in various azimuths, capable of judging and identifying the properties and changes of complex formations, and providing an important basis for geosteering operations. [0004] In order to achieve the above object, the present invention provides an az...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B47/00E21B49/00G01V5/12
CPCE21B47/00E21B49/00G01V5/12Y02E30/30
Inventor 陆永钢倪初明
Owner 上海神开石油测控技术有限公司
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