Exploration and effect of exploration and development integration in unconventional gas of CNOOC
(2.Research Center of China United Coalbed Methane Company)
【Abstract】The shale oil and gas revolution in the United States has brought about the rapid development of unconventional oil and gas industry. China National Offshore Oil Corporation (hereinafter referred to as CNOOC) follows the trend and actively opens up the unconventional oil and gas business. After acquiring China United Coalbed Methane Company, CNOOC was faced with a series of challenges in unconventional gas development. For coalbed methane, resource grade is poor; reserve abundance is low; production scale is small; and capacity of productivity construction is poor. For tight gas, the reserves are present but the production is low. Combined with the characteristics of coalbed methane and tight gas reservoirs and the technical requirements of exploration and development, through the management innovation of exploration and development integration, CNOOC has explored the path to achieve commercial development of unconventional gas and achieved preliminary results. Through the innovation of management mode and system construction, the rhythm and effect of unconventional gas exploration and development have been obtained, which realizes the goal of exploration and drilling, pipeline construction, pilot production, and gas sales in the same year, and greatly shortens the production cycle. It not only improves the exploration quality and investment efficiency but also avoids the risk of direct large-scale development and accelerates the pace of increasing reserves and production. It is hoped that through the exploration and demonstration from a single project and its corresponding system reform and innovation, the healthy and orderly development of the unconventional gas industry will be promoted in China.
【Keywords】 CNOOC; unconventional gas; reserves and production; investment benefits; innovation of management system;
 BP. BP statistical review of world energy [EB/OL]. [2016-11-20]. http://www.bp.com/content/dam/bp-country/zh_cn/publications/stasreview2016/bp%20stats%20review_Chinese version report. PDF (in Chinese).
 Annual Energy Outlook 2018. https://www.eia.gov/outlooks/aeo/pdf/AEO2018.pdf.
 Yang Lei, Jin Zhijun. Global shale oil development and prospects [J]. China Petroleum Exploration, 2019, 24(5): 553–559 (in Chinese).
 Dow W G. Application of oil correlation and source rock data to exploration in Williston basin (abs.) [J]. AAPG Bulletin. 1972, 56: 615.
 Jia Chengzao, Zheng Ming, Zhang Yongfeng. The important theories issues of unconventional petroleum geology [J]. Acta Petrolei Sineca, 2014, 35(1): 1–10 (in Chinese).
 Jia Chengzao. The discussion on the unconventional Petroleum geology’s breakthrough & significances to classic petroleum geology [J]. Petroleum Exploration and Development, 2017, 44(1): 1–10 (in Chinese).
 Zou Caineng. Unconventional petroleum geology [M]. Beijing: Geological Publishing House, 2011 (in Chinese).
 Zou Caineng, Zhai Guangming, Zhang Guangya, Wang Hongjun, Zhang Guosheng, Li Jianzhong, et al. The formation & distribution, resources potential and prospect of the global petroleum and unconventional petroleum [J]. Petroleum Exploration and Development, 2015, 42(1): 13–25 (in Chinese).
 Sun Zandong, Jia Chengzao, Li Xiangfang. The Unconventional oil & gas Exploration and Development [M]. Beijing: Petroleum Industry Press, 2011 (in Chinese).
 Xie Yuhong. New progress and prospect of oil and gas exploration of China National Offshore Oil Corporation [J]. China Petroleum Exploration, 2018, 23(1): 26–35 (in Chinese).
 Fu Jinhua, Fan Liyong, Liu Xinshe, Hu Xinyou, Li Jihong, Ji Haikun, et al. New progresses, prospects and countermeasures of natural gas exploration in the Ordos Basin [J]. China Petroleum Exploration, 2019, 24(4): 418–430 (in Chinese).
 Li Guoxin, Wang Feng, Pi Xuejun, Liu He. Optimized application of geologic-engineer integration data of unconventional oil & gas reservoirs [J]. China Petroleum Exploration, 2019, 24(2): 147–152 (in Chinese).
 Hu Wenrui. Geology-engineering integration-a necessary way to realize profitable exploration and development of complex reservoirs [J]. China Petroleum Exploration, 2017, 22(1):1–5 (in Chinese).
 Zhang Kang, Jiao Yang. Deepening the exploration-development integration to provide effective reserves for development [J]. China Petroleum Exploration, 2018, 23(2):76–82 (in Chinese).
 The Oil & gas Strategy Study Centre. Ministry of natural resources, the study of mineral resources management [M]. Beijing: Geological Publishing House, 2019 (in Chinese).
 Guo Jiaofeng, Wang Jie, Meng Fanda. Promoting the high-quality development of China’s shale oil upstream industry by following international first-class standard [J]. China Petroleum Exploration, 2019, 24(5): 547–552 (in Chinese).