期刊
PETROLEUM EXPLORATION AND DEVELOPMENT
卷 49, 期 1, 页码 191-199出版社
KEAI PUBLISHING LTD
DOI: 10.1016/S1876-3804(22)60015-6
关键词
shale oil and gas; horizontal well fracturing; fracturing equipment; fracturing parameter; three-dimensional de-velopment; intelligent fracturing
资金
- National Science and Technology Major Project [2016ZX05023]
This article systematically summarizes the horizontal well fracturing technology for shale oil and gas reservoirs abroad since the 13th Five-Year Plan, and elaborates on new features in 3D development of stacked shale reservoirs, small well spacing and dense well pattern, horizontal well re-fracturing, fracturing parameters optimization and cost control. Based on the requirements for horizontal well fracturing technology in China, the technological progress in multi-fracture propagation simulation, horizontal well frac-design, electric-drive fracturing equipment, soluble tools and low-cost downhole materials, and factory-like operation are summarized. The article also suggests strengthening research and development in seven aspects for the 14th Five-Year Plan.
By systematically summarizing horizontal well fracturing technology abroad for shale oil and gas reservoirs since the 13th Five-Year Plan, this article elaborates new horizontal well fracturing features in 3D development of stacked shale reservoirs, small well spacing and dense well pattern, horizontal well re-fracturing, fracturing parameters optimization and cost control. In light of requirements on horizontal well fracturing technology in China, we have summarized the technological progress in simulation of multi-fracture propagation, horizontal well frac-design, electric-drive fracturing equipment, soluble tools and low-cost downhole materials and factory-like operation. On this basis, combined with the demand analysis of horizontal well fracturing technology in the 14th Five-Year Plan for unconventional shale oil and gas, we suggest strengthening the research and development in the following 7 aspects: (1) geology-engineering integration; (2) basic theory and design optimization of fracturing for shale oil and gas reservoirs; (3) development of high-power electric-drive fracturing equipment; (4) fracturing tool and supporting equipment for long horizontal section; (5) horizontal well flexible-sidetracking drilling technology for tapping remaining oil; (6) post-frac workover technology for long horizontal well; (7) intelligent fracturing technology.
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