The Development And Application Of Well Underground Water Cut Memory-type Analyzer

With the injection-production well technology is through the study of the well underground oil-water separation of produced fluid, water reinjection directly to infuse isolated layer, separation of oil-water mixture (high oil well liquid are lifting to the ground, in a simultaneous production water injection and oil production process. But in practice, determining the well separator, reasonable length to determine moisture content affect the degree of water injection different length oil-water separator on back, thus further optimization design. Storage type development of underground water cut analyzer, which can realize continuous monitoring of produced liquid in the well separator separation effect of different settling time and injection-production optimization design for the same well, provide powerful data security.Based on the moisture content of the determination of main parameters, working principle, the derivation of the mechanical structure, drive circuit and playback software to carry on the design, through the indoor test and experimental calibration, the calibration accuracy, with adaptability adjustment of the software and the ability to work at the same time, ensure the precision meet the requirements of the moisture content monitoring instrument, its working life to meet the design requirements, meet with the relevant requirement of injection-production well test, finally through the field of practical application, analyzes its application prospect and economic benefit can be achieved.In the test and application stage, with the technology of injection-production well test Wells operation, install the underground storage type water cut analyzer in the injection pump and oil-water separator, the injection of liquid water; Operation again, pull out the string and remove the underground storage type water cut analyzer, playback in underground water for a set period of time.Back to monitor water moisture content through indoor test and inspection, logical function and the storage capacity and accuracy can meet the design requirements completely. The instrument by the interior and water content of the test apparatus in the experimental device measuring range is 50%-100%, flow range 10 m3/d-300 m3/d, accuracy of 2%. Instrument and the well string matching perfectly, for at the injection-production optimization of well with design data provide strong support.