A dynamic parameter measurement pup joint, energy-saving oil recovery system and method

Abstract

The invention provides a dynamic parameter measurement nipple, an energy-saving oil extraction system and method. The dynamic parameter measurement nipple comprises a nipple housing, a measuring cabin and an annular liquid flow channel, wherein two ends of the nipple housing are opened; the measuring cabin is sealed and fixed in the nipple housing via a supporting element; the measuring cabin is formed by a measuring cabin liquid inlet, a measuring cabin liquid outlet, a sensor and a measurement module; the annular liquid flow channel is arranged between the nipple housing and the measuring cabin; produced liquid of a production layer flows into the measuring cabin via the measuring cabin liquid inlet; the produced liquid flows into the annular liquid flow channel via the measuring cabin liquid outlet after passing through the sensor, the measuring module; the produced liquid flows out of the dynamic parameter measurement nipple via the openings; and produced liquid parameter of the production layer can be collected by the sensor and the measuring module. By the use of the dynamic parameter measurement nipple, the energy-saving oil extraction system and the method, oil well monitoring result precision and credibility are improved; long term dynamic monitoring and intelligent plugging functions can be achieved for the oil well; and energy waste can be avoided and effect of energy conservation and consumption reduction can be realized.

Description

technical field [0001] The invention relates to the technical field of oil field development, in particular to a dynamic parameter measuring pup joint, an energy-saving oil production system and a method. Background technique [0002] In the process of oilfield exploitation, with the extension of development time, the output of crude oil will continue to decline. Since most of the oil wells are exploited by water injection or polymer injection, the water content of the oil well production fluid is very high. The surface engineering facilities of the oil field need to separate the large amount of water contained in the produced liquid, and then re-inject it into the formation to increase the pressure of the formation, so that the less and less oil in the formation can be displaced. [0003] After long-term exploitation, the liquid produced in the formation is no longer a liquid with a uniform mixture of oil and water, that is, it does not belong to the depolarized distributi...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of energy waste during oil production caused by the water cut measurement error of conventional methods, and realize energy-saving oil production, the present invention provides a dynamic parameter measurement nipple for oil well layer monitoring and oil layer opening and closing control. The dynamic parameter measurement Short sections include:

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