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首页> 外文期刊>Natural Gas Industry B >Theoretical insights, core technologies and practices concerning “volume development” of shale gas in China
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Theoretical insights, core technologies and practices concerning “volume development” of shale gas in China

机译：关于中国页岩气“批量发展”的理论见解，核心技术和实践

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In recent years, major exploration breakthroughs and subsequent booming development of marine shale gas in both Upper Ordovician Wufeng and Lower Silurian Longmaxi Fms in the Sichuan Basin and its periphery highlight the strategic importance for the theoretical innovation and technological advances of gas in China. A number of key theories and technologies, such as continuous hydrocarbon accumulation and horizontal well volume fracturing, and so on, have contributed to the large-scale development of shale gas fields such as Shunan, Fuling, etc., in Sichuan Basin. Based on China's geological conditions, industrial practices and current limitations in executing the full-scale development of shale gas, a new concept called “volume development (VD)” has been proposed. Under the framework of this theory, man-made volumetric fracture network systems are established through the combination of horizontal well drilling and transverse hydraulic fracturing through which gas flow become much more efficient due to the lateral flow superimposed by vertical fracture flow. VD has become a very efficient development model for shale gas because it can make gas in the volume affected by the man-made fracture network system become commercial reserves, and be produced more cost-effectively. VD includes five core technologies, i.e. comprehensive evaluation of “sweet areas”, optimization design of well patterns for volume development, optimization and trajectory design of horizontal well drilling in target window, massive fracturing technology for horizontal wellbores, design of production system and platform-based well factory-like management. The VD theory and technology provides important theoretical basis and technical support not only for the present three-dimensional development of shale gas in Changning, Fuling and other nearby blocks, but for the overall utilization of unconventional oil and gas resources such as continental, transitional shale gas. It is believed that VD will have broad application prospects in shale gas development.
机译：近年来，四川盆地上奥陶凡司和下艾尔氏龙马西FMS的主要勘探突破和海洋页岩气体蓬勃发展及其周边突显了中国天然气理论创新与技术进步的战略重要性。诸如连续的碳氢化合物积累和水平井压裂等许多关键理论和技术，促成了四川盆地等页岩气田的大规模发展，如山南，涪陵等。基于中国的地质条件，工业实践和目前在执行页岩气体的全规模发展时，已经提出了一个名为“批量发展（VD）”的新概念。在该理论的框架下，通过横向井钻孔和横向液压压裂的组合建立了人造的体积裂缝网络系统，通过该横向液压压裂，由于通过垂直裂缝流叠加的横向流动，气流变得更有效。 VD已成为页岩气体的高效开发模型，因为它可以使受人造骨折网络系统影响的体积中的气体成为商业储备，并生产更具成本效益。 VD包括五种核心技术，即对“甜美区域”的综合评价，井模式井模式的优化设计，卧式窗口水平井钻井的优化设计，水平井筒的大规模压裂技术，生产系统和平台设计 - 基于好的工厂的管理。 VD理论和技术不仅为现有的理论基础和技术支持，不仅为现有的大宁，涪陵和其他附近街区的页岩气的三维发展，而且为整体利用大陆，过渡的页岩等非传票和天然气资源气体。据信VD将在页岩气体开发中具有广泛的应用前景。

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