摘要
页岩气作为一种储存在页岩中的非常规天然气,其巨大的储藏量和可持续性使得其开发成为世界各国关注的能源焦点.利用传统的水力压裂方式形成单一对称双翼裂缝的增产改造技术目前已不能满足页岩气产量的需求.为此,美国提出了改造油气藏体积(Stimulated Reservoir Volume,SRV)的概念,即通过压裂形成复杂裂缝网络,极大地改造储集层有效泄油体积,从而达到提高页岩气产量的目的.对体积压裂原理及工艺技术现状进行了简要的回顾,认为体积压裂是目前页岩气开发最为有效的技术之一,虽然其技术工艺已有一定的进步,但对于体积压裂力学机理仍缺乏深入认识,与之配套的压裂优化设计和施工工艺技术也有待进一步研究和开发,同时给出了下一步体积压裂研究应努力的方向.
As a type of unconventional natural gas stored in the shale,shale gas has become the energy focus of the world because of its huge reserves and sustainability. To solve the problem that conventional single two-winged hydraulic fracturing technology can not meet the needs of the production the concept of the stimulated reservoir volume（ SRV） was proposed in the US. Aiming at forming a complex fracture network,SRV technology enhanced the drainage volume and achieved an increase production of shale gas. The principle and present situation of SRV were reviewed briefly. It is obtained that SRV is one of the most effective technologies in shale gas development.Although the corresponding technology has a certain progress,there is still lack of deep views in the mechanism of SRV,and the relevant fracturing optimization design and implementing technologies also need further research and development. Then,the further research direction for SRV was presented.
出处
《上海工程技术大学学报》
CAS
2015年第1期69-72,共4页
Journal of Shanghai University of Engineering Science
基金
国家自然科学基金资助项目(11472246)
关键词
页岩气
压裂改造
裂缝网络
体积压裂
shale gas
fracturing stimulation
fracture network
stimulated reservoir volume（SRV） fracturing
