二氧化碳泡沫压裂效果评价  

The Evaluation of the Carbon Dioxide Foam Fracturing.

作　　者：李全[1] 权咏梅[1] 黄显辉[1] 

机构地区：[1]大庆油田试油试采公司

出　　处：《油气井测试》2003年第6期21-23,共3页Well Testing

摘　　要：为评价二氧化碳泡沫压裂效果,指导压裂优化设计,提高选井、选层的成功率,从二氧化碳相态变化和增能原理出发,全面分析了二氧化碳压裂返排速度、压力降落特点及增产效果,认为二氧化碳泡沫压裂返排速度快,放喷为排液主要阶段;排液求产过程中地层压降小,地层能量损失少;给出了二氧化碳泡沫压裂适用的储层条件。In order to evaluate the carbon dioxide foam fracturing, optimize the fracturing design, and improve the success ratio to choose wells and layers, based on the analyzing the change of carbon dioxide phase state and the principle of its energisation, The paper has completely analyzed the flowback velocity of carbon dioxide fracturing, the pressure drawdown characteristics and the effect of increasing production. The result shows that the velocity of carbon dioxide foam fracturing flow-back is so fast that the boosting is the primary phase of flowback and the pressure drawdown of boosting output is so small that the energy of formation losing fewer. The paper has given the applied condition of the carbon dioxide foam fracturing.

关 键 词：二氧化碳 泡沫压裂 压裂效果 评价 返出排量 储层 

分 类 号：TE357.29[石油与天然气工程—油气田开发工程]