CAJ | 학술논문

四川盆地长宁地区龙马溪组页岩气具有厚度大、有机质含量高、区域构造断裂系统局部发育、工区山地地貌复杂、地表水源分布不均等特点，为进一步提高该地区页岩气开发效率，降低开发成本，开展了工厂化压裂先导性试验，通过该地区前期改造，初步探索形成了集设计、工具、液体、分簇射孔、钻磨“一体化”的页岩气工厂化压裂改造技术。目前完成2个页岩气井组7口井的压裂实践，均获较好测试产量。实践表明，采用水平井丛式井组、工厂化压裂改造可有效地提高页岩气单井产量和开发效率，可为今后山地地区页岩气藏高效、规模开发提供参考。
사천분지장저지구룡마계조혈암기구유후도대、유궤질함량고、구역구조단렬계통국부발육、공구산지지모복잡、지표수원분포불균등특점，위진일보제고해지구혈암기개발효솔，강저개발성본，개전료공엄화압렬선도성시험，통과해지구전기개조，초보탐색형성료집설계、공구、액체、분족사공、찬마“일체화”적혈암기공엄화압렬개조기술。목전완성2개혈암기정조7구정적압렬실천，균획교호측시산량。실천표명，채용수평정총식정조、공엄화압렬개조가유효지제고혈암기단정산량화개발효솔，가위금후산지지구혈암기장고효、규모개발제공삼고。
Shale gas of Longmaxi Formation in Changning region of Sichuan Basin is characterized with large thickness, high organic content, local development of fracture system of regional structure, complex mountain landform of construction site, nonuniform distribution of surface water source, etc. Pilot test for industrial fracturing is developed to further improve shale gas exploitation efifciency and lower exploitation cost for this region. Through early transformation for this region, the shale gas industrial fracturing transformation technology is developed, which integrates design, tool, liquid, clustered perforation and drilling upon preliminary exploration. The fracturing practice has been completed for 7 wells of 2 shale gas well groups, with satisfactory testing output. It is shown from practice that clustered horizontal well group and industrial fracturing transformation can effectively improve single-well output and exploitation efifciency of shale gas, and can provide reference for efifcient and scale exploitation of mountainous region in the future.