CAJ | 학술논문

分段完井已逐渐成为水平井、大斜度井储层保护、控水及分段改造的主要手段。基于膨胀橡胶的遇油遇水膨胀封隔器是分段完井的关键工具。系统总结了此类封隔器的技术特征与应用特性，进行了胀封机理、影响因素研究，给出了胀封后主要技术指标及5种结构类型遇油膨胀封隔器的技术特点。研究结果表明，酸、碱、盐溶液对于已膨胀橡胶影响幅度小于10%，遇油膨胀封隔器具有结构简单、操作方便、坐封可靠、多次膨胀及永久膨胀等明显技术优势。阿姆河气田BP101D井是一口高温、高压、高含硫大斜度井，预测产量超过110×104 m3/d，底部完井工艺设计采用遇油膨胀封隔器与增产滑套为核心工具的永久分段完井管柱组合，储层的成功分段为后期的找堵水、定点有效控水、分段改造提供了技术窗口，为高产气井可持续高效采气提供了技术支持和保障。
분단완정이축점성위수평정、대사도정저층보호、공수급분단개조적주요수단。기우팽창상효적우유우수팽창봉격기시분단완정적관건공구。계통총결료차류봉격기적기술특정여응용특성，진행료창봉궤리、영향인소연구，급출료창봉후주요기술지표급5충결구류형우유팽창봉격기적기술특점。연구결과표명，산、감、염용액대우이팽창상효영향폭도소우10%，우유팽창봉격기구유결구간단、조작방편、좌봉가고、다차팽창급영구팽창등명현기술우세。아모하기전BP101D정시일구고온、고압、고함류대사도정，예측산량초과110×104 m3/d，저부완정공예설계채용우유팽창봉격기여증산활투위핵심공구적영구분단완정관주조합，저층적성공분단위후기적조도수、정점유효공수、분단개조제공료기술창구，위고산기정가지속고효채기제공료기술지지화보장。
The segregated completion technique has been the main method to protect the reservoir of highly-deviated/horizontal wells, control water and perform staged stimulation. The oil/water swelling packer which is based on swelling rubber is the key tool for segregated completion technology. This paper summarizes the technical and application feature systematically, studies the swelling seal-ing mechanism and inlfuence factors have been carried on research and providing the main technical indicators after packer swelling and technical features of ifve types of swelling packers. The results show that the inlfuence of acid, alkali and salt on the swelling rubber are less than 10%and the oil swelling packer has the outstanding technical advantages of easy operation, reliable setting, multi-expansion and permanent expansion. For the application in BP101D, a highly deviated/high temperature, high pressure, high sulfur well in Amu Darya Gas Field, it is predicted that the yield is more than 110×104 m3/d. The bottom well completion technology use permanently-seg-regated completion string which takes the oil swelling packer and sliding sleeve as core tools. The successful segmentation of reservoir provides a technical window for future water blocking, effective water control at ifxed point and staged stimulation, and the technical support and guarantee for continuous production of high-yield gas.