Oil well sampling equipment

Abstract

The invention relates to an oil well sampling device, and specifically discloses oil well sampling equipment. The equipment includes a communication joint, and an electronic control cylinder and a sampling cylinder which are connected to the communication joint; the electronic control cylinder includes a transmission shaft, a speed reducer connected to the transmission shaft, a motor connected tothe speed reducer, and a circuit board and a battery which are connected to the motor; the transmission shaft is provided with a lock block; the communication joint is connected to a controller; the controller is connected to a computer through a USB communication line; the controller includes a control circuit part, a liquid crystal display screen part, an operation keyboard part, a power supplybattery part and a shell case part; and the operation keyboard part includes data keys, a movable key, a setting key, a mode key, a starting key and a testing key. The equipment of the device are as follows: the equipment is short in sample cylinder, good in sealing performance, convenient in connection and strong in real-time performance; and sampling storage data can be rapidly processed and analyzed by the computer, so that high sampling success rates can be achieved.

Description

technical field [0001] The invention relates to the technical field of downhole sampling devices, in particular to an oil well sampling device. 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 ultimate goal of experimental sy...

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

Images