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A New Seismic Device for Petroleum Measurement While Drilling

A technology of measurement-while-drilling and wave-detection devices, which can be used in measurement devices, seismology, and geophysical measurements. It can solve the problems of unfavorable and efficient measurement of sweeping seismic signals, insufficient resolution of seismic signals, and small dynamic response range of seismic wave measurement. , to achieve the effect of large dynamic response range, wide application range and high resolution

Active Publication Date: 2019-01-22
BC P INC CHINA NAT PETROLEUM CORP +2
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AI Technical Summary

Problems solved by technology

[0002] The coil and MEMS accelerometer design of traditional geophones have a small dynamic response range for seismic wave measurement and insufficient resolution of seismic signals, which is not conducive to efficient measurement of frequency-swept seismic signals excited by ground-based frequency-swept sources and propagated downhole along the formation

Method used

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  • A New Seismic Device for Petroleum Measurement While Drilling
  • A New Seismic Device for Petroleum Measurement While Drilling
  • A New Seismic Device for Petroleum Measurement While Drilling

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Embodiment Construction

[0035] see figure 1 , shows the novel petroleum measurement-while-drilling geophone device of the present invention.

[0036] The novel petroleum measurement-while-drilling geophone device includes a drill collar mounting body 1, a hydraulic pushing system and a signal detection system arranged on the drill collar mounting body 1, and the hydraulic pushing system includes a hydraulic pushing mechanism 10 and at least one Hydraulic pushing block, the hydraulic pushing mechanism 10 is connected to the hydraulic pushing block to realize the pressure or separation of the hydraulic pushing block against the well wall and / or formation, and the hydraulic pushing block is provided with a wave detector to Seismic waves are detected.

[0037] see figure 1 , the hydraulic pressure pushing block can include a first hydraulic pushing block 11, a second hydraulic pushing block 12 and a third hydraulic pushing block 13, and respectively include a wave detector to provide support for the X ...

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Abstract

Provided is a novel petroleum measurement-while-drilling seismometer, which comprises a drill collar installation body, a hydraulic pusher system and a signal detection system, wherein the hydraulic pusher system and the signal detection system are arranged in the drill collar installation body. The hydraulic pusher system comprises a hydraulic pusher mechanism and at least one hydraulic pusher block. Each hydraulic pusher block is provided with a wave detector for detecting seismic waves. The wave detector comprises a metal housing, a quartz crystal sheet and an excitation source circuit board. The quartz crystal sheet is arranged in the rigid metal housing; and one side of the metal housing is provided with the excitation source circuit board, which is connected to the quartz crystal sheet through two coaxial cables and can provide frequency-variable frequency sweep alternating electric signals to the quartz crystal sheet to enable the quartz crystal sheet to vibrate under different frequencies. The novel petroleum measurement-while-drilling seismometer is large in dynamic response range for seismic wave measurement and high in seismic signal resolution, and facilitates efficiently measuring sweep frequency seismic signals triggered by a ground sweep frequency earthquake source and transmitted down to the hole along the stratum.

Description

technical field [0001] The invention relates to the technical field of petroleum measurement-while-drilling seismic measurement, in particular to a novel petroleum measurement-while-drilling seismic detection device. Background technique [0002] The design of the coil and MEMS accelerometer of the traditional geophone has a small dynamic response range for seismic wave measurement, and the resolution of the seismic signal is not enough, which is not conducive to the efficient measurement of the frequency-sweep seismic signal excited by the ground-sweep source and propagated downhole along the formation. [0003] For this reason, the designer of the present invention, in view of the above-mentioned defects, through painstaking research and design, integrated long-term experience and achievements in related industries for many years, researched and designed a novel oil measurement while drilling geophone device, to overcome the above-mentioned defects. Contents of the invent...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V1/18
CPCG01V1/181
Inventor 贾衡天艾维平高文凯张连成张磊曹冲范锦辉
Owner BC P INC CHINA NAT PETROLEUM CORP
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