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A Plasma Transmitting Source for Borehole Acoustic Reflection Imaging.

Xiaolong Hao^1,2, Jing Zhou^1,2, Haiyan Shang^1,2

¹Downhole Measurement & Control Research Department, National Engineering Laboratory of Petroleum Drilling Technology, Xi'an Shiyou University, Xi'an 710065, China.

Sensors (Basel, Switzerland)

|October 27, 2022

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A novel plasma source with a parabolic reflector significantly enhances borehole acoustic reflection imaging. This breakthrough increases detection depth to hundreds of meters with high resolution, crucial for oil-gas exploration.

Area of Science:

Geophysics
Reservoir Engineering
Plasma Physics

Background:

Current borehole acoustic reflection imaging has limited detection depth (tens of meters) and resolution.
This restricts its use in characterizing unconventional reservoirs and optimizing drilling paths.

Purpose of the Study:

To introduce and evaluate a plasma source with a parabolic reflector for borehole acoustic reflection imaging.
To enhance detection depth and resolution for geological structure imaging near boreholes.

Main Methods:

Construction of an experimental system to test the plasma source.
Experimental and numerical simulation to analyze acoustic-electrical characteristics and directional radiation.
Assessment of the plasma source's advantages, disadvantages, and feasibility.

Keywords:

acoustic reflection imaging acoustic-electrical characteristics detection depth directional radiation high resolution plasma source

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Main Results:

The plasma source with a parabolic reflector increases detection depth to hundreds of meters.
High-resolution imaging of geological structures near boreholes is achieved.
Improved capabilities for oil-gas exploration and development.

Conclusions:

The plasma-transmitting source is a feasible and effective method for improving borehole acoustic reflection imaging.
This technology is vital for detailed geological characterization and resource exploration.
Further research and development are recommended for source optimization and logging applications.