China has already established a diversified investment and exploration landscape for shale gas.
Release time:
2015-06-15
Source:
The China Geological Survey held a symposium on the survey and evaluation of shale gas resources and released the "China Shale Gas Resource Survey Report." 2014 ). Reporters learned that China’s shale gas exploration and development companies have taken the lead in achieving breakthroughs in shale gas exploration in the Sichuan Basin, where the first large-scale shale gas field with proven reserves of 100 billion cubic meters has been identified. Exploration and development technologies have largely been localized, and the industry is now entering the initial stage of large-scale development.
The results of the nationwide survey and evaluation of shale gas resource potential and the selection of favorable areas, organized by the Ministry of Natural Resources, show that China’s geological shale gas resources amount to... 134 Trillion cubic meters, recoverable resource volume 25 Trillion cubic meters. As of 2014 Year-end, cumulative investment 230 hundreds of millions of yuan, achieving significant breakthroughs in Fuling, Chongqing; Changning, Sichuan; Weiyuan, and other areas, and securing nearly tertiary geological reserves of shale gas. 5000 hundred million cubic meters, including proven geological reserves 1067.5 Hundred million cubic meters, built production capacity 32 Hundred million cubic meters / Year, cumulative shale gas production 15 Hundred million cubic meters ( 2014 Annual shale gas production 13 billion cubic meters).
The report points out that China boasts enormous shale gas resource potential, with its recoverable reserves ranking among the highest in the world. Significant breakthroughs have been achieved in exploration and development, and core technologies and equipment have largely been localized. A diversified investment landscape for shale gas exploration has now taken shape. However, at the same time, challenges remain, including an unclear understanding of enrichment patterns, insufficient large-scale exploration efforts, ongoing need to overcome key technological hurdles, and the need for further refinement of oversight mechanisms. Currently, the Ministry of Natural Resources is actively promoting the development of technical standards for shale gas exploration and development, and a preliminary technical standard system has already been established. In the practical implementation of shale gas development, oil companies have drawn upon existing national, industry, and enterprise standards to formulate over a hundred technical specifications and standards covering drilling operations, gas production engineering, health, safety, and environmental protection.
The report points out that China started relatively late in research on shale gas drilling and completion technologies, but has made rapid progress. Currently, China has essentially achieved domestic production of shale gas exploration and development technologies and equipment. The cost of horizontal wells continues to decline, and the construction cycle is steadily shortening. Through technology introduction, digestion, absorption, and focused攻关 efforts, China has basically mastered key shale gas exploration and development technologies—including geophysical exploration, drilling, well completion, fracturing, and well testing. 3500 Proficient in shallow horizontal well drilling and staged fracturing operations, capable of handling up to [number] stages in horizontal well staged fracturing. 22 Section, long-reaching 2130 Mi's capabilities: a self-developed, mobile drilling rig, 3000 fracturing trucks and other equipment, as well as shale gas “ Dessert ” The predictive software has achieved better application results in exploration and development. The completion cycle for horizontal wells has been reduced from... 150 The sky decreases to 70 Sky, shortest 46 Heaven, the per-well cost of horizontal wells from 1 From 100 million yuan to 5000 Ten thousand yuan~ 7000 Ten thousand yuan.
At the symposium, Zhai Gangyi, deputy director of the Oil and Gas Resources Survey Center of the China Geological Survey, told a reporter from the China Mining News that the China Geological Survey attaches great importance to studying the environmental impacts of shale gas exploration and development. 2014 The year saw the launch of public-interest scientific research projects in the industry. “ Study on Environmental Impact Factors in Shale Gas Exploration and Development ” in the Qaidam Basin, Chaiye 1 Environmental impact factors for shale gas exploration and development are being studied at the well fracturing and gas testing site as well as at the Chongqing Fuling Shale Gas Exploration and Demonstration Base. 2015 This year, hydrogeological surveys and groundwater monitoring will be conducted, with a particular focus on the Fuling shale gas demonstration zone in Chongqing. Groundwater and surface water sampling and dynamic monitoring will be carried out to investigate and evaluate the current status of water environmental quality, assess the degree of water resource security, and preliminarily explore an indicator system for evaluating the impact of shale gas exploration and development on the water environment. Meanwhile, in recent years, the China Geological Survey has completed a new round of national groundwater resource assessments and studies on northern regions. 11 A survey of groundwater resources and associated environmental issues in plain basins. These findings can provide nationwide background information on environmental geology and groundwater resources, serving as a basis for environmental assessments related to shale gas development.