连续油管技术在页岩气勘探开发中应用前景

Coiled Tubing Technology Prospect in Exploration and Development of Shale Gas

页岩气存在于盆地沉积层中,由于聚集机理特殊,不能用常规方法开采。连续油管技术具有许多优点,已在钻井、压裂、冲砂等领域得到应用。在页岩气开采中采用连续油管技术,即,欠平衡钻井、水平井拖动酸化、压裂等,将使这些能源具有开发价值。美国的开发实践也证明了该技术的可行性,我国应加强连续油管设备研究及在页岩气勘探开发中的应用研究。

Shale gas present in the basin sediments, due to a special gathering mechanism can not be mined by conventional methods. Coiled tubing technology has many advantages, in drilling,fracturing, sand washing and other application fields. Shale gas in the coiled tubing used in mining technology,i, e. , underbalanced drilling, horizontal wells drag acidification, fracturing, etc. , will have a development value of these energy sources. The development of the United States practice has proven the feasibility of the technology ; China should strengthen research and coiled tubing equipment in shale gas exploration and development of applied research.