Petroleum Exploration History and Enlightenment in Pearl River Mouth Basin

doi:10.7657/XJPG20210311

Abstract

Abstract:

Oil and gas exploration in the Pearl River Mouth basin has been going on more than 40 years. Considering the changes of exploration strategy and geological understanding, exploration workload, breakthrough and reserve growth, the exploration process can be divided into three stages: (1) Early exploration stage (1974-1984) aiming at large structures in the uplift belt; (2) Anticline exploration stage (1985-1999) focusing on middle and shallow layers in the hydrocarbon-rich sags; and (3) Composite exploration stage (since 2000) paying same attention to oil and gas, deep-water regions and deep layers. A number of innovative geological understandings, theories and technologies have been formed through exploration practices, such as differential hydrocarbon enrichment and composite accumulation theory, the late-stage hydrocarbon accumulation pattern with multi-source hydrocarbon generation and complex transformation, the recognition of deep-water fan in lowstand system tract, the comprehensive evaluation system of “source-migration-accumulation” and the reservoir forming pattern of “near-source hydrocarbon supply with multiple migration networks”. These understandings have enriched the oil and gas exploration theories, and led to continuous breakthroughs of oil and gas exploration in the Pearl River Mouth basin.

Key words: Pearl River Mouth basin, exploration history, exploration enlightenment, geological understanding, hydrocarbon accumulation model

CLC Number:

TE132

ZHANG Wenzhao, ZHANG Houhe, LI Chunrong, YAN Han, LI Fanyi, HAO Jing. Petroleum Exploration History and Enlightenment in Pearl River Mouth Basin[J]. Xinjiang Petroleum Geology, 2021, 42(3): 346-352.

Figures/Tables 5

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