石油与天然气化工
石油與天然氣化工
석유여천연기화공
CHEMICAL ENGINEERING OF OIL AND GAS
2014年
2期
185-187
,共3页
李芹%雷鑫宇%李文涛%张直建%陈大钧
李芹%雷鑫宇%李文濤%張直建%陳大鈞
리근%뢰흠우%리문도%장직건%진대균
冲洗液%冲洗效率%楔合效应%胶结强度%微观分析
遲洗液%遲洗效率%楔閤效應%膠結彊度%微觀分析
충세액%충세효솔%설합효응%효결강도%미관분석
flushing fluid%washing efficiency%wedge effect%cementing strength%micro anal-y sis
在固井施工中,为了提高水泥环与地层的胶结性,实现有效层间的良好封隔,保证油井的正常生产和后续增产措施的顺利实施,需要提高注水泥浆的各项性能。通过大量室内实验,确定冲洗液的配方;该冲洗液对低固相滤饼的冲洗效率超过80%,且通过微观分析,冲洗液中的活性材料有效地预留在了岩心表面,形成“活性楔子”,有效地提高界面胶结能力。
在固井施工中,為瞭提高水泥環與地層的膠結性,實現有效層間的良好封隔,保證油井的正常生產和後續增產措施的順利實施,需要提高註水泥漿的各項性能。通過大量室內實驗,確定遲洗液的配方;該遲洗液對低固相濾餅的遲洗效率超過80%,且通過微觀分析,遲洗液中的活性材料有效地預留在瞭巖心錶麵,形成“活性楔子”,有效地提高界麵膠結能力。
재고정시공중,위료제고수니배여지층적효결성,실현유효층간적량호봉격,보증유정적정상생산화후속증산조시적순리실시,수요제고주수니장적각항성능。통과대량실내실험,학정충세액적배방;해충세액대저고상려병적충세효솔초과80%,차통과미관분석,충세액중적활성재료유효지예류재료암심표면,형성“활성설자”,유효지제고계면효결능력。
In order to improve the cementation of cement annulus and formation ,realizing ef-fective interlayer good packer ,maintaining the normal production of oil well and the smooth im-plementation of the follow-up measures to increase production ,various properties of slurry need to be improved during cementing . In this article , the flushing fluid formula is determined through a large number of laboratory experiments .The washing efficiency of flushing fluid is more than 80% towards low solid phase mud cake .Moreover ,it is found that the active material of the fluid is effectively reserved on the surface of the core through the micro analysis ,w hich forms some“active wedges” and improves the cementation ability of interface effectively .