CAJ | 학술논문

中原油田文濮结合部由于断块多,钻进过程中出水、漏失、后效、“大肚子”井眼等现象严重,固井施工难度大.通过对各断块地层特点进行剖析,制定有效的防漏技术措施,结合分段压稳、局部封堵、全井防窜、环空加回压等措施,优选水泥浆体系,采用紊流加塞流复合顶替技术,较好地解决了文濮结合部固井难题,为今后该地区固井施工提供了技术支撑,并为老区复杂地层固井提供借鉴作用.
중원유전문복결합부유우단괴다,찬진과정중출수、루실、후효、“대두자”정안등현상엄중,고정시공난도대.통과대각단괴지층특점진행부석,제정유효적방루기술조시,결합분단압은、국부봉도、전정방찬、배공가회압등조시,우선수니장체계,채용문류가새류복합정체기술,교호지해결료문복결합부고정난제,위금후해지구고정시공제공료기술지탱,병위로구복잡지층고정제공차감작용.
?Zhongyuan?Oilfield?Wenliu?&Pucheng?joint?region?tectonics?locate?in?eastern?Puyang?topographic?depression.?Since?numerous fault blocks exist in the region, and water emerging, circulation lost and severe kicking happen, cementing operations are facing?big?challenges.?By?serious?analysis?on?each?block?stratum,?and?effective?anti?circulation?loss?technical?measures,?and?combined?with?sectional?pressure?stabilization,?partial?plugging,?overall?anti?channeling,?annular?back?pressure?adding?measures?etc.,?cement?slurry?system?was?optimized.?Taking?turbulence?and?plug?flow?complex?displacing?technology,?the?cementing?difficulties?were?effectively?solved in Wenliu&Pucheng joint region, and it made technical support to the future cementing operations and accumulated experience for?cementing?works?in?similar?complex?regions.