摘要
中国页岩气资源丰富,勘探开发前景广阔。通过采用资源类比法预测中国页岩气地质资源量达95.00×10^(12) m^3,技术可采资源量16.30×10^(12) m^3,经济可采资源量12.86×10^(12) m^3。页岩气作为中国国家政策鼓励开发的绿色独立矿种之一,备受社会广泛关注。在国家级页岩气示范区建设的基础上,逐步形成和发展了在页岩气综合地质评价、开发技术优化、水平井优质快速钻井、水平井体积压裂、水平井工厂化作业、高效清洁开采等页岩气勘探开发主体技术,现场应用成效显著。截至2016年底,涪陵页岩气田已生产页岩气50.37×108 m^3,长宁—威远页岩气田生产页岩气23.04×108 m^3,昭通页岩气田生产页岩气约2×108m^3。页岩气的勘探开发正改变中国能源结构,缓解国内天然气供需矛盾,促进中国绿色低碳经济发展。但目前中国页岩气勘探开发才刚刚起步,页岩气的规模效益开发仍面临一系列技术瓶颈需要攻克,针对深层页岩气在评层选区、钻完井工艺、体积压裂改造等勘探开发方面仍需开展技术攻关,从而进一步推动中国页岩气产业蓬勃发展。
In China, the resource of shale gas is abundant and its exploration and development prospect is promising, It is predicted by means of resource analogy method that the geological resources of shale gas are 95x 1012 m3, technically recoverable resources are 16.30~ 1012 m3, and economically recoverable resources are 12.86x 1012 m3 in China. Shale gas, as one of the independent green min- erals whose development is encouraged by national policies, receives extensive concerns from the whole society. In addition to the construction of national shale gas demonstration area, the main technologies for shale gas exploration and development are gradually formed and developed, including comprehensive geological evaluation, development technology optimization, optimized and fast drill- ing of horizontal well, volume fracturing of horizontal well, factory-like operation of horizontal well, and efficient and clean exploita- tion technology. Their field application results are remarkable. By the end of 2016, cumulative shale gas production was 50.37~ 108 m3 in the Fuling Shale Gasfield, 23.04x l0s m3 in the Changning-Weiyuan Shale Gasfield, and 2x 108 m3 in the Zhaotong Shale Gasfield. With the exploration and development of shale gas, the energy structure in China is being changed, the contradiction between domes- tic gas supply and demand is alleviated, and the development of low-carbon green economy in China is promoted. In China, however, shale gas exploration and development is currently at the very beginning stage, and large-scale beneficial shale gas development can- not be realized until a series of technical bottlenecks are broken through. Therefore, it is necessary to carry out technical research on the exploration and development of deep shale gas, e.g., layer assessment and zone selection, drilling and completion technologies, and volume fracturing stimulation, so as to promote the booming of shale gas industry.
作者
岳鹏升
石乔
岳来群
梁英波
Yue Pengsheng Shi Qiao Yue Laiqun Liang Yingbo(China Mining Association, Beijing 100013, China Strategy Research Center of Oil ＆ Gas Resources, Ministry of Land and Resources of the People＇s Republic of China, Beo＇ing 100034, China PetroChina Research Institute of Petroleum Exploration and Development, Beijing 100083, China)
出处
《天然气勘探与开发》
2017年第3期38-44,共7页
Natural Gas Exploration and Development
基金
国家科技重大专项"基础性公益性地质矿产调查"(编号:121201006000160906)
关键词
中国
页岩气
勘探开发
资源
优质快速钻井
体积压裂
评层选区
技术突破
China
Shale gas
Exploration and development
Resources
Optimized and fast drilling
Volume fracturing
Layer assess- ment and zone selection
Technology breakthroughs
