Rock micro-electric scanning imaging system and imaging method

Abstract

An imaging method of rock by micro-electric scanning includes processing sample to be saturated conductive fluid and fixing sample between return polar plate and electrode polar plate, sending out measurement signal by signal generation unit and collecting current data of each electrode by system the displaying said current data after normalization treatment and image reconstruction treatment is carried out on said current data by system. The system used for realizing said method is also disclosed.

Description

technical field [0001] The present invention relates to a rock microelectronic scanning imaging system and imaging method, in particular to a rock microelectric scanning imaging that uses rock samples to provide back calculation basis for real fracture width calculation basis for imaging instruments on the well site in oil and gas exploration Systems and imaging methods. Background technique [0002] In oil and gas exploration, it is necessary to conduct corresponding surveys on the physical and chemical properties of the local geological rock formations, so as to provide sufficient geological data basis for future mining work. [0003] For the research on the distribution of rock fractures in well logging, the full-bore formation micro-resistivity imager (FMI) is usually used to directly survey on the well site. [0004] The key components of the full-bore formation micro-resistivity imager are four pushing arms that are perpendicular to each other and push against the wel...

AI Technical Summary

Problems solved by technology

[0005] The existing full-bore formation micro-resistivity imager has some shortcomings in logging. In its work, it actually measures the distribution of resistivity anomalies in the detection range near the button electrode, not the rock formation on the borehole wall. Therefore, the full-bore formation micro-resistivity imager cannot effectively and accurately obtain the distribution parameters of rock formation fractures

[0006] Because the plates of the full-bore formation micro-resistivity imager have radians, the measured current has a large divergence, and the number of button electrodes on each plate is small, so the full-bore formation micro-resistivity imager Inability to perform relevant measurements in the laboratory on known small-sample models of rocks

Images