Online monitoring and cleaning system for oil-water well operation and online monitoring method thereof

Abstract

The invention discloses an online monitoring and cleaning system for oil-water well operation. The online monitoring and cleaning system for oil-water well operation comprises a cleaning system and amonitoring system. The cleaning system comprises a heat exchange main unit, a water supplement pump, a recovery pump, a recovery tank sewage pump, a flushing pump, a vacuum superconducting heating furnace, a water supplement tank, a recovery tank, a distribution box, a flushing nano-hose, a drainage pup joint, a winder and a cleaner. The monitoring system comprises a total magnetic flux detectionsystem and a leakage magnetic flux detection system. After an oil pipe is cleaned, the magnetic flux detection systems are used for monitoring the pipe wall of the oil pipe, the total magnetic flux detection system adopts a measuring coil to measure the area change of the cross section of the oil pipe passing through the total magnetic flux detection system, and detected signals are subjected to data processing and defect analysis.

Description

technical field [0001] The invention relates to the technical field of oil and water wells, in particular to an online monitoring and cleaning system for oil and water well operations and an online monitoring method thereof. Background technique [0002] In the process of oil well operation, how to achieve clean, efficient and safe operation is a difficult problem that has plagued oilfield production in recent years, and it is also an urgent problem to be solved in environmental protection. At present, in the process of oil well operation, there are three traditional methods of cleaning tubing and rods: [0003] ① Lift the sucker rod and tubing out of the wellhead respectively, place them on the pipe bridge, and perform high-temperature flushing with a steam gun. The dirty oil and sewage produced by the flushing are scattered on the well site, producing a large amount of dirty oil, sewage and sludge, which seriously pollutes the environment. [0004] ② After the sucker rod ...

AI Technical Summary

Problems solved by technology

This method not only consumes high energy and easily causes pollution, but also increases the safety risks in the transportation and loading and unloading process

[0005] ③Using the backwashing method to inject hot water from the casing and return from the oil pipe, the water consumption per well is 40-70 tons, which wastes water and fuel, and more importantly, pollutes the oil layer and affects crude oil production

The traditional signal processing method is no longer suitable for the development of contemporary non-destructive testing technology. The introduction of modern signal processing technology to deal with the confidence of defects in the signal can effectively dig out the rich information contained in the detection signal, and exchange the maximum benefit at a lower cost.

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