Azimuth gamma test system
A testing system, azimuthal gamma technology, applied in surveying, earth-moving drilling, wellbore/well components, etc., can solve problems such as the inability to achieve simulation test calibration
Pending Publication Date: 2022-07-22
北京巨点未来科技有限公司
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Problems solved by technology
At present, azimuth gamma can only be used for calibration of standard wells and inter-calibration between instruments, and cannot realize simulation test calibration
Method used
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[0043] In order to make the purposes, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application.
[0044] With the increasing degree of oilfield exploration and development, oil and gas development has turned to some difficult oil reservoirs. During drilling, directional and horizontal wells replace traditional vertical wells. During the drilling process of the drill bit, it is necessary to know the formation parameters around the drill bit in real time, adjust the wellbore trajectory so that the drill bit can drill in the favorable oil and gas layers as much as possible, and improve the oil and gas recovery and oil and gas production. At present, azimuth gamma can only be used for calibration of standard wells and mutual calibration betwe...
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The embodiment of the invention provides an azimuth gamma test system, which comprises a rotation test device, a servo motor, a sector signal analyzer and an upper computer, and is characterized in that the servo motor is used for driving the rotation test device to rotate in a preset rotation mode; the sector signal analyzer is used for obtaining a reference sector signal and reference counting time according to the coding disc, and obtaining gamma counts detected in each sector in the rotation process of the detected device from the detected device; the upper computer is used for acquiring a reference sector signal, reference counting time and gamma counting from the sector signal analyzer, acquiring sector signals which are generated in a rotation process and are used for representing all sectors and duration of continuous rotation in each sector from the tested device and displaying the sector signals and the duration; and finally, comparing the reference sector signal with the sector signal, and comparing the reference counting time with the duration time, and if the reference sector signal and the sector signal are consistent, determining that the tested device passes verification.
Description
technical field [0001] The embodiments of the present application relate to the technical field of drilling engineering in petroleum, coal mines and geological exploration, and in particular, to an azimuth gamma test system. Background technique [0002] The azimuth gamma measurement while drilling device is an important measuring instrument in the drilling of directional wells and horizontal wells. During the drilling process, the azimuth gamma logging device can identify the formation gamma value of a certain azimuth of the tool while drilling, and quickly and Accurately judge whether the LWD tool is hitting the target layer, grasp the formation information, identify the thin oil layer, and improve the drilling efficiency, so that the engineering and technical personnel can timely understand the changes of the wellbore trajectory and formation information, and make a better evaluation of the formation. The accuracy of the azimuth-while-drilling gamma measurement device wil...
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Login to View More IPC IPC(8): E21B47/00E21B49/00
CPCE21B47/00E21B49/00
Inventor 张卫星刘宇超王政孙苗苗孙兵兵张子孝冯帅董永高
Owner 北京巨点未来科技有限公司