文23气田CO2泡沫压裂技术先导试验与分析

中原油田文23断块属中等埋深、高丰度、中低产中型气田。该断块为低渗储层、断层多、储层埋藏深、温度高，压裂改造难度大。根据文23气田以往压裂改造的情况，对该断块进行了CO2泡沫压裂工艺技术的专题研究，现场应用3口井，取得了较好的增产效果。文中介绍了文23块CO2泡沫压裂改造的方法和技术，对类似气田的压裂改造有借鉴作用。

The study of Foam Fracturing innovation technology and its Test in wen-23 gasfield

Wen-23 gas-field of Zhongyuan oilfield is mid-deeps ,high abundance , middle - gasfield . This faultage reservoir is a low permeability , lots of faultage, deep burried reservoir and high temperature. Bases on the tprevious wen23 fracturing experiences ,we have carried on Special study based on results in previous fracturing treatment. Through 3 wells application, it achieved good results in increasing production by using these new methods. The paper introduces some methods and technology of foam fracturing innovation in Wen-23 gasfield. We can put these successful experiences into other similar gas reservoir.