摘要
对低压低渗气层进行压裂改造是必须的 ,常规水力压裂改造后液体返排速度慢、程度低的问题是客观存在的 ,由此而引起的二次污染是影响工艺效果的主要因素。用液态CO2 与水基压裂液的混合液作为新的压裂液 ,不会使压裂工艺水平降低 。
It is necessary to reform the low presure, low gas permiability beds in development of oil gas. When the conventional method of hydrofracturing is used, liquid redrainage is low both in speed and in cmpleteness. Furthermore, the secondary pollution thus resultsd is a major factor affecting the techoloigcal process. A new hydrofracturing liquid can be produced by mixing liquidus CO 2with water based liquids, and the new product solved the above mentioned problems to a high extent.
出处
《西安工程学院学报》
2001年第4期37-40,共4页
Journal of Xi'an Engineering University
关键词
低压气层改造
油气开发
液态二氧化碳
压裂液
Peformation of low presure gas bed
Application of CO 2
Determination of quantity
