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本文以马岭油田为例研究了压裂裂缝延伸长度的设计方法,当已知压裂层的厚度时,按压裂裂缝长度应保持在透镜体含油范围之内的原则,以透镜体宽度来设计裂缝延伸长度和压裂规模。压裂后的裂缝延伸长度,用典型曲线拟合方法对马岭油田南试验区六口压裂井的压力恢复资料进行了计算,它们的裂缝延伸长度(单翼)17～66.5米,一般均在含油透镜体之内,因此,压裂效果随裂缝长度(压裂规模)的增大而明显地提高。
This paper takes Maling oilfield as an example to study the design method of the fracture length of fracturing. When the thickness of the fracturing layer is known, the principle of the fracture length should be kept within the range of the oil content of the lens body. Design crack extension and fracture size. The fracture extension after fracturing was calculated by using typical curve fitting method. The pressure recovery data of six fracturing wells in the southern pilot area of Maling Oilfield were calculated. Their fracture extensions (single wings) ranged from 17 to 66.5 meters, Within the oleaginous lens body, therefore, the fracturing effect increases significantly with increasing fracture length (fracturing scale).