川中八角场致密砂岩气藏深度压裂的主要做法

Study of Deep Fracturing Technology of Tight-gas-sandstone Reservoir

川中八角场致密砂岩气藏的储量丰富,但此类气藏开采难度大,开发好此类气藏对该区稳定生产有着重要的意义。围绕研究区致密砂岩气藏开发问题,结合国内外研究成果,首先分析了致密砂岩气藏地质特征和开发特征,指出了相应的技术对策;就深度压裂改造技术及其配套技术在川中八角场致密岩气藏中的运用情况进行了归纳、总结。研究证实深度压裂改造技术能有效的提高致密砂岩气藏的单井产量。

Reserves are abundant in tight-gas-sandstone reservoir of Bajiangchang in middle of Sichuan basin, but development of the gas reservoir is difficult. The development of the reservoir has an important significance for production maintenance in this area. Aiming at the development problems of the tight-gas-sandstone reservoir in the study area, geologic characteristics and development characteristics of the tight-gas-sandstone reservoir are analyzed and relevant technology countermeasures are presented based on the research results at home and abroad. The application effects of the deep fracturing stimulation technology and its matching technology in Bajiaochang gas field are summarized. The study proves that the production of single well can be improved effectively by deep fracturing stimulation technology.