混气压裂技术的应用

Application of Nitrogen Gas Mixing Fracturing Technique

混气压裂是提高三低油藏压裂液的返排和压裂效果的一项新技术。将混气压裂液在高压下挤入地层，可起到隔离、降滤失和助排降压作用，且返排效果明显。经6口井的实例应用证明，该技术具有较好的经济效益和社会效益。

Nitrogen gas mixing fracturing is a new technique to help 'three low (low pressure, low permeability, low production rate) reservoir fracturing fluid flow back and to improve fracturing effect. To squeeze fracturing fluid into formation under high pressure may take effect of isolation,filtration reduction,cleanup support and pressure relief,with evident result of flow back. The field application on six wells indicates that the technique has good economic and social benefits.