川东南地区页岩气常压储层措施工艺技术探讨

Discussion on Process Technology of Shale Gas Normal Pressure Reservoir Measures in Southeast Sichuan

川东南地区页岩气常压储层整体资源可观,具有极大的开发价值。结合区块地质特点以及常压储层主要面临的改造难题,提出了以提高裂缝复杂程度,保证改造强度为目标的主体改造思路,从压裂机理出发,对常压储层的压裂设计参数、压裂工艺参数、压裂入井材料等三个方面进行优化。现场实施工艺成功,同时取得了较好的测试效果。文中提出的常压储层的工艺思路及对策可为今后页岩气常压储层的改造提供技术借鉴。

The shale gas normal pressure reservoirs in the southeastern Sichuan Province have considerable overall resources with great development value. Combining with the geological characteristics of the block and the major transformation problems encountered in the normal pressure reservoirs, the main idea of improving the complexity of the fracture and ensuring the strength of the transformation was proposed. Based on the fracturing mechanism the aspects of fracturing design parameters, fracturing process parameters, and fracturing into well materials of the normal pressure reservoir were optimized. The on-site implementation process was successful and at the same time achieved good test results. The process ideas and counter measures of the normal pressure reservoirs proposed in the paper can provide technical references for the future reconstruction of shale gas normal pressure reservoirs.