Intelligent high pressure physical property sampler

Abstract

The invention relates to an underground sampling device, and specifically discloses an intelligent high-pressure physical property sampler, which includes a communication joint, an electronic control cylinder and a sampling cylinder connected to it in sequence, and the electronic control cylinder includes a transmission shaft and a reducer connected to the transmission shaft 1. The motor connected to the reducer is connected to the circuit board and the battery; the transmission shaft is also provided with a lock block; the communication joint is connected to a controller, and the controller is connected to the computer through a USB communication line; The controller includes a control circuit part, a liquid crystal display part, an operation keyboard part, a power supply battery part, and a casing part; the operation keyboard part includes data keys, movement keys, setting keys, mode keys, start keys, and test keys. The invention has the advantages of short sample cylinder, good sealing performance, convenient connection, strong real-time performance, fast processing and analysis of sampling and storage data by computer, and high sampling success rate.

Description

technical field [0001] The invention relates to the technical field of downhole sampling devices, in particular to an intelligent high-pressure physical property sampler. Background technique [0002] With the continuous in-depth development of oilfield development technology, my country's petroleum industry is currently paying more and more attention to the authenticity and reliability of oil and gas samples from exploration and development oil and gas wells. Obtaining first-hand real and effective oil and gas sample data is an important task for contemporary oil workers. Critical. Whether it is in the downhole sampling operation stage or the laboratory sample analysis stage, ensure that the oil and gas samples completely maintain the single-phase, high pressure, and high temperature of the original oil and gas well formation state; ensure that the sample parameters obtained by the test are true and effective downhole parameters are the sampler and its parameters. The ultim...

AI Technical Summary

Problems solved by technology

During the downhole sampling operation of the sampler, the sampling cylinder is always kept open, which cannot guarantee that the sample taken is the sample of the expected target layer, which makes the oil and gas samples distorted; During the replacement process, using mercury or saturated brine to directly contact the oil and gas samples will lead to contamination of the oil and gas samples

[0004] Whether it is sample distortion or sample contamination, the test data deviates from the actual situation, and even draws wrong conclusions, which cannot provide real and effective guidance for oil and gas development, or seriously mislead the formulation of oil and gas development plans

[0005] Although some oil and gas wells currently use volumetric samplers imported from abroad, the sampling control uses a mechanical clock, and the sampling time setting is not accurate enough

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