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摘要:煤层气公司创新压裂工艺助力高效稳产
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中国石油网消息:8月30日,从煤层气公司获悉,该公司吉深2-10井台成功开展活化基质压裂工艺现场试验,井台3口单井投产后,前3个月日均产气量较首月提升36%,增产成效显著。 China Oil News: On August 30th, the Coalbed Methane Company informed that their Ji Shen 2-10 well platform successfully conducted a field trial of the activated matrix fracturing process. After the three single wells at the platform were put into production, the average daily gas production in the first three months increased by 36% compared to the first month, demonstrating remarkable production gains. 在此之前,大水漫灌式压裂工艺适配性不足,极易造成储层改造失衡问题,出现高应力区改造不彻底、低应力区裂缝无序扩张等情况,进而引发井间窜扰、储层资源动用不充分等诸多问题。 Prior to this, the water-flooded fracturing technology was not well-suited and was prone to causing imbalance in reservoir modification. It led to situations such as incomplete modification in high-stress areas and disorderly expansion of fractures in low-stress areas, which in turn resulted in issues like inter-well migration and insufficient utilization of reservoir resources. 为此,煤层气公司技术人员以渗吸置换核心理论为技术支撑,创新确立“开启割理、连通微孔、激活基质、促进解吸”的全新技术理念,迭代打造出以限流调控、动态暂堵、粗砂改造为核心的成套专属压裂工艺。该工艺颠覆了传统单一向外造缝的改造逻辑,精准优化施工参数、把控施工能量,将改造能量精准聚焦于储层内部,实现裂缝网络可控延伸、储层全方位均衡改造。 Therefore, the technical personnel of the coalbed methane company used the theory of percolation and replacement as the technical support, innovatively established a new technical concept of "opening fractures, connecting micropores, activating the matrix, and promoting desorption", and iteratively developed a complete set of exclusive fracturing technology centered on flow rate control, dynamic temporary blocking, and coarse sand modification. This technology overturned the traditional single logic of creating fractures outward, precisely optimized the construction parameters and controlled the construction energy, focused the transformation energy precisely on the reservoir interior, and achieved controllable extension of the fracture network and balanced overall transformation of the reservoir. 据微地震监测数据验证,新工艺可实现裂缝有序延展,大幅提高缝网致密程度,能够针对井场不同储层区域实施差异化精准改造,显著提高压裂施工精度与煤层气资源动用率。此次工艺创新,推动深层煤层气开发模式向“精准滴灌、精优调控、精耕丰产”转型升级,为深层煤层气规模化、高效化开发筑牢技术根基。 According to the verification of micro-earthquake monitoring data, this new process can enable orderly extension of fractures, significantly increase the density of the fracture network, and be capable of implementing differentiated and precise modifications for different reservoir areas in the well site. It can also significantly improve the accuracy of fracturing operations and the utilization rate of coalbed methane resources. This technological innovation has promoted the transformation of the deep coalbed methane development model towards "precise irrigation, precise regulation, and intensive production", laying a solid technical foundation for the large-scale and efficient development of deep coalbed methane. |
















