Characteristics of petroleum geology of global five deep-water basin belts

doi:10.3969/j.issn.1672-7703.2022.03.002

Abstract

Abstract: Unconventional oil and gas reservoirs are closely related but fundamentally different from conventional oil and gas reservoirs. There are four basic characteristics of unconventional oil and gas play, i.e., unreliability of predicting production performance by offset wells in area without well drilling, repeatability of the statistical distribution of the estimated ultimate recoveries (EURs) from wells, regionality of continuous petroleum system, and non-Darcy dynamics of free hydrocarbons. Therefore, the development of unconventional oil and gas faces greater technical and commercial challenges than that of conventional oil and gas, and the concept of resource and reserve management should be innovated in seven aspects, i.e., value management of reserve assets, classification system with economically recoverable reserves as the core, integrated model in the whole life cycle, fracture-controlled volume and well-controlled reserves, heterogeneity of reservoir physical property and production performance, quantitative risk evaluation, and conservative estimation of economically recoverable reserves. An in-depth study on the characteristics of unconventional oil and gas plays and innovative management of resource and reserve will support to promote the exploration and development of unconventional oil and gas resource and improve resource management system in China.

CLC Number:

TE121

Wang Yongxiang. Characteristics of petroleum geology of global five deep-water basin belts[J]. China Petroleum Exploration, 2022, 27(3): 20-26.

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