Exploration and effect of exploration and development integration in unconventional gas of CNOOC

XIE Yuhong1 CAI Dongsheng1 SUN Hansen2

(1.China National Offshore Oil Corporation)
(2.Research Center of China United Coalbed Methane Company)
【Knowledge Link】tight gas; proven reserves

【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;


【Funds】 National Science and Technology Major Project during the 13th Five-Year Plan Period “Coalbed Methane Development Technology and Pilot Test in Eastern Yunnan and Western Guizhou” (2016ZX05044)

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This Article


CN: 11-5215/TE

Vol 25, No. 02, Pages 27-32

March 2020


Article Outline



  • 0 Introduction
  • 1 Progress in unconventional gas development of CNOOC
  • 2 Practice and effect of unconventional gas exploration and development integration
  • 3 System issues faced in the promotion of exploration and development integration
  • 4 Conclusion
  • References