Characteristics and Controlling Factors of Fractures in Igneous Rock Reservoirs
详细信息
- 责任者：Wang Jinghong (State Key Laboratory of Enhanced Oil Recovery ; Beijing 100083 ; China) ; Zou Caineng
- 刊名：Petroleum Exploration and Development
- 出版年：2011
- 卷期：38(6)
- 关键词：火成岩油气藏 ; igneous reservoir ; 裂缝性油气藏 ; fractured reservoir ; 新疆 ; Xinjiang
- 页码：p.708-715
- 图表：10 illus., 20 refs.
- 分类号：1003
- issnNo：ISSN1000-0747
- isbnNo：CN11-2360/TE
摘要
Based on the updated exploration and research achievements, this paper studies the types and controlling factors of the fractures in Carboniferous igneous rocks of Northern Xinjiang, and their influences on the high-quality reservoir and high production of oil and gas. Fractures with different occurrences (oblique fracture, net fracture, horizontal fracture and vertical fracture) and geneses (autoclasic fracture, contraction fracture, dissolved fracture, joint fracture and structural fracture) were developed in igneous rocks. Various lithologic igneous rocks undergoing intense tectonic movement and long-time weathering developed fractures and favorable volcanic reservoirs that were concentrated in the area no more than 3 km away from the main fault zone. The closer to the fault the well is located, the easier it gains high and stable production of oil and gas.