CAJ | 학술논문

双河油田上部地层蒙脱石含量高，易水化分散造浆，使用PAC系列或两性离子聚合物钻井液体系，提高抑制性。下部地层因多年分层开采和长期强化注水形成不同的压力层系，进入油层(注水层)前必须调整好钻井液性能，加入屏蔽暂堵材料，密度的确定以地质、工程设计和新钻邻井资科为参考依据，以酸溶性铁矿石粉加重。在钻开每个油层(注水层)和起钻前要进行平衡观察，达到不涌不漏。改进双河油田调整井钻井液技术和钻井工程技术措施后，到2000年2月底共钻井30多口，进尺约60000 m，井涌、井漏和井塌现象明显咸少，提高了钻井速度，减少了环境污染。
쌍하유전상부지층몽탈석함량고，역수화분산조장，사용PAC계렬혹량성리자취합물찬정액체계，제고억제성。하부지층인다년분층개채화장기강화주수형성불동적압력층계，진입유층(주수층)전필수조정호찬정액성능，가입병폐잠도재료，밀도적학정이지질、공정설계화신찬린정자과위삼고의거，이산용성철광석분가중。재찬개매개유층(주수층)화기찬전요진행평형관찰，체도불용불루。개진쌍하유전조정정찬정액기술화찬정공정기술조시후，도2000년2월저공찬정30다구，진척약60000 m，정용、정루화정탑현상명현함소，제고료찬정속도，감소료배경오염。
Drilling problems such as lost circulation and pipesticking occur frequently in Shuanghe area. becauseof its geological condition and long term of enhancedrecovery, which causes complicated undergroundpressure systems. Modified drillmg fluid technologyand optimized drilling techniques are taken to improvethe adjustment well drilling in this area. In the upperformation. PAC or zwitterionic polymer drilling fluidare used to control mud-making tendencies. In thelower formation, proper drilling fluid performancesare obtainced before hitting every pay zone. and at thesame time. closcely watceh any show of kick and lostcirculation. By the end of Feb. 2000. more than 30wells had been drilled with little drilling problem andimproved ROP.