Receiving device suitable for while-drilling orientation acoustic logging
A receiving device and azimuth technology, which is applied in the directions of surveying, earthwork drilling, wellbore/well components, etc., can solve the problems of reduced reliability, large volume, complex structure, etc., and achieve the effect of improving reliability
Active Publication Date: 2017-05-10
INST OF GEOLOGY & GEOPHYSICS CHINESE ACAD OF SCI
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Problems solved by technology
However, the volume of the hydraulic package is large after completion, and usually can only be directly installed in the electronic warehouse or the internal framework.
As a result, the water hole space inside the drill collar is occupied, resulting in a complex structure and reduced reliability
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Embodiment 1
[0036] A receiving device for azimuth acoustic logging while drilling is mainly composed of a caliper measurement system while drilling and an azimuth acoustic wave receiving system while drilling. Such as figure 1 As shown, the receiving device mainly includes: a drill collar body 1, a circuit installation framework 8, a caliper measurement system while drilling and an azimuth acoustic wave receiving system while drilling. The circuit installation framework 8 is located inside the drill collar body 1;
[0037] The azimuth acoustic wave receiving system while drilling includes a receiving transducer 6, a sealed connector 7, a pre-processing circuit module 9 and a first receiving signal processing circuit 10-1 for processing transducer signals, and the receiving transducer 6 The sealed connector 7 is electrically connected to the pre-processing circuit module 9, and the pre-processing circuit module 9 is electrically connected to the first received signal processing circuit 10-...
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The invention belongs to the field of while-drilling logging measuring devices, and particularly relates to a receiving device suitable for while-drilling orientation acoustic logging. The receiving device comprises a drill collar body, a circuit mounting framework, a receiving transducer, a sealing connector, a preprocessing circuit module, a first signal receiving and processing circuit used for processing a transducer signal, a distance detection sensor, at least one inserting assembly, an electric connector, and a second signal receiving and processing circuit used for processing a distance detection sensor signal. The circuit mounting framework is located in and connected with the drill collar body. By adoption of the receiving device, a while-drilling hole diameter measuring system and a while-drilling orientation acoustic receiving system are integrated into one drill collar, and through modularized encapsulation of the acoustic transducer and the ultrasonic distance detection sensor, and the sealing structure design, and the acoustic transducer and the ultrasonic distance detection sensor are isolated from high pressure mud.
Description
technical field [0001] The invention belongs to the field of logging-while-drilling measuring devices, and in particular relates to a receiving device suitable for azimuth acoustic logging while drilling. Background technique [0002] With the continuous expansion of oil and gas field drilling scale and the development of science and technology. In particular, the rapid development of logging-while-drilling technology urgently requires the current advanced science and technology to play an important role in oil and gas field exploitation. Azimuth acoustic logging while drilling is one of the methods of logging while drilling. Acoustic logging while drilling realizes acoustic logging while drilling. Compared with wireline logging, the data obtained by acoustic logging while drilling is less affected by drilling fluid invasion, and can more effectively detect the lithology and physical properties of the wellbore formation and reservoir parameters. Formation compressional an...
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IPC IPC(8): E21B47/14
CPCE21B47/14E21B47/017E21B47/085E21B47/08
Inventor 郑健底青云陈文轩张文秀孙云涛杨永友
Owner INST OF GEOLOGY & GEOPHYSICS CHINESE ACAD OF SCI