A device and method for accurate classification and sampling of laminar structures in continental tight reservoirs

Abstract

The invention relates to a precise classifying and sampling device and device of a continental tight reservoir lamina structure. The device comprises a cutting pedestal system, a laser positioning system, a picture pick-up system, a mechanical arm system and a master control system; the cutting pedestal system is used for clamping a rock sample and providing a cutting sampling space for the rock sample; the laser positioning system is used for sending a laser signal to the cutting pedestal system, establishing a work space plane coordinate system by combining the cutting pedestal system, and positioning the rock sample; the picture pick-up system is used for monitoring a complete image of the working space system and sending the monitored image to the master control system; the master control system sends a sample cutting instruction to the mechanical arm system according to the established working space plane coordinate system, the coordinate value data of the rock sample and the complete image of the working space system; and the mechanical arm is used for cutting and sampling the tight reservoir rock sample. The device disclosed by the invention can be extensively applied to theclassifying and sampling field of the tight reservoir rock.

Description

technical field [0001] The invention relates to a device and method for accurately classifying and sampling laminae structures of continental tight reservoirs, in particular to a device and method for accurately classifying and sampling laminae structures of continental tight reservoirs based on manipulators and laser positioning means, belonging to Characteristic petrological layered structure analysis field. Background technique [0002] The laminar structure of tight reservoirs is a characteristic petrological layered structure in fine-grained sedimentary rocks, which is widely developed in clastic rocks and carbonate rocks. The formation of laminae is mostly controlled by many factors such as the original sedimentary environment, hydrological conditions of the water body, source supply, paleoclimate background, and epigenetic diagenesis. " or "rhythmic" monolayers alternated as typical developmental patterns. [0003] Among clastic rocks, continental tight sandstone an...

AI Technical Summary

Problems solved by technology

This traditional process is difficult to accurately grasp the cutting position, the operation time is low, the sample loss is large, the sampling accuracy is poor, and it often causes the sandy laminae and the argillaceous laminae, and the bright (bright crystal) and dark (mud crystal) laminae cannot be clearly distinguished. Segmentation, resulting in the deviation and even distortion of the observation and characterization of the microstructure between the double laminae and the comprehensive analysis of geochemistry due to sample contamination

In addition, this process requires high proficiency of manual operators, which is easy to cause accidental injury to experimenters

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