为了提高松辽盆地南部凹陷深层天然气储层的压裂改造程度,利用主压裂施工前活性水和冻胶的两个小型压裂测试,对压裂压力进行分析来取得裂缝有关参数,如:裂缝延伸压力、闭合压力、闭合时间、压裂液滤失系数、液体效率等,为制定和修改主压裂设计、指导施工及效果评价提供依据。 In order to improve the fracturing degree of deep natural gas reservoirs in the southern depression of Songliao Basin, the fracture pressure was analyzed by using two small fracturing tests of active water and gel before main fracturing to obtain the relevant parameters of fractures, such as: Crack extension pressure, closing pressure, closing time, fluid loss coefficient of fracturing fluid and liquid efficiency, which can provide the basis for formulating and modifying the design of main fracturing, guiding the construction and evaluating the effect.