气田防支撑剂回流压裂液快速返排的研究

The research on proppant fracturing fluid back

苏里格气田属于典型的"三低"气田,决定了自然投产后单井产量总体偏低。理论和实践都证明通过适度规模的压裂改造,可以显著提高开采效果。由于压裂井均有一个压后排液的过程,排液速度过快或不控制放喷均会造成支撑剂回流,从而影响储层压裂改造的效果。因此,掌握压裂后防支撑剂回流压裂液快速返排技术是提高改造效果的重要环节。

Sulige gas field is typical of the ＂three low＂ gas field, after the decision of the natural production of single well production is low in general. Theory and practice have proved that the adoption of an appropriate scale fracturing,can significantly improve the mining results. Well as a result of fracturing fluid has a pressure at the back of the process fluid does not control the speed of release is too fast or spray may cause proppant to return, thus affecting the effectiveness of reservoir fracturing. Therefore,the master defense fracturing proppant fracturing fluid to return back to Pal rapid transformation of the effect of technology is to improve an important link.