摘要
非常规天然气是中国天然气的后备资源,提高非常规天然气的勘探开发效果具有重要的战略意义。增产改造技术是非常规天然气开采的关键技术,由于地质条件的复杂性和特殊性,增产改造技术相对落后,严重制约了中国非常规天然气开发的步伐。通过分析中外非常规天然气的勘探开发现状和增产改造技术研究进展,重点探讨了中国非常规天然气增产改造技术的发展历程:在页岩气增产改造技术方面,目前尚处于现场试验阶段,技术还不完善;煤层气增产改造已进行了一系列的研究与现场试验;致密砂岩气增产改造已经形成了较为完善的技术体系。通过分析中外非常规天然气增产改造技术研究现状与存在问题,提出了非常规天然气室内实验、低伤害压裂液技术、水平井分段压裂技术、深层致密气藏改造技术、煤层区块整体压裂改造排采技术和裂缝监测技术是今后攻关的主要方向。
Stimulation technology is the key technology in unconventional gas exploitation, the unconventional gas geological condition is complicated and special, and seriously restricts the development and utilization of unconventional gas, and challenge the backward technology. Chinese unconventional gas stimulation technology development and history is studied in this paper, so far, the study of tight gas sandstone stimulation has formed relatively perfect technology, system; the coal bed methane stimulation has conducted a series of experiments and research; and the shale oil and gas stimulation technology is still in the experimental stage, and this technology is not perfect. Through the analysis of the research present situation of unconventional gas stimulation technology home and abroad, we propose the problem and research direction in the unconventional gas stimulation.
出处
《油气地质与采收率》
CAS
CSCD
北大核心
2013年第2期103-107,118,共5页
Petroleum Geology and Recovery Efficiency
基金
国家"973"计划"中国南方海相页岩气高效开发的基础研究"(2013CB228000)
关键词
非常规天然气
致密砂岩气
煤层气
页岩气
增产改造
unconventional gas
tight sandstone gas
coal bed methane
shale gas
stimulation
