電控分層注聚流量調(diào)節(jié)閥設(shè)計(jì)與結(jié)構(gòu)優(yōu)化

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中圖分類號(hào)：TE952 文獻(xiàn)標(biāo)志碼：A doi：10.3969/j.issn.1001-3482.2025.04.011

Design and Structural Optimization of Electrically Controlled Throttle Valve for StratifiedPolymerInjection

HUANG Yuxuan'，NIU Guifengl，WANG Liu'，MA Haifeng2 （1.Engineering Technology Branch of CNOOC Energy Development Co.， Ltd.，Tianjin 3O0450，China; 2.SchoolofechanicalandElectricalEngineering，SouthwestPetroleum Universityhengdu6o5o，ina）

Abstract：Inviewoftheseriousviscosity loss intheelectricallycontrolledthrottlevalveforstratified polymer injection，as a core component，the throttle valve was taken as the research object，and numerical simulation and structural optimization were carried out. On the basis of an in ?- depthanalysis of the polymer viscosity loss mechanism，the control variable method was adopted to conduct numerical simulation research on diferent spool structures， groove pitches，groove depths，and valve section lengths.The research finds that the throttle valve with an arc shaped spool has a better viscosity retaining efect compared with throttle valves in other shapes.When the groove pitch of the arc ?- shaped spool is 3O mm; the groove depth is3 mm，and the valve section length is 1.O mm，the viscosityretaining performance reaches the optimal state.Moreover，bycarrying out the viscosity loss tests of the polymer injection working barrel，the viscosity-retaining effect after structural optimization is evaluated. The maximum viscosity loss rate measured for the optimized throtle valve is 8.9% ，and the viscosity loss rate has significantly decreased compared with the 12% viscosity loss rate of other oilfields. The decrease in the viscosity lossrate strongly proves the excellent viscosity -retaining effect of the optimized throttle valve in terms of viscosity retention，laying a solid foundation for the overall performance improvement of the stratified polymer injection tool.

Key words： stratified polymer injection; performance optimization; viscosity loss; numerical simulation

目前我國(guó)難以開采的重質(zhì)原油或復(fù)雜油藏較多，傳統(tǒng)的水驅(qū)方法已無(wú)法適應(yīng)提高采收率要求，因此三次采油工藝也逐漸成為油田科技革命的重要環(huán)節(jié)[1-2]。（剩余6850字）