海相油气地质2018，Vol.23Issue(2)：1-9,9.DOI:10.3969/j.issn.1672-9854.2018.02.001
四川盆地德阳—安岳台内裂陷与震旦系勘探方向
Deyang-Anyue Interplatform Rift in Sichuan Basin and Its Direction of Exploration in Sinian
摘要
Abstract
The essential characteristics of Deyang-Anyue interplatform rift and its formation and evolution are illustrated in the paper. And it is also discussed the controls of Deyang-Anyue interplatform rift on the Sinian reservoir formation. Then four achievements were obtained, as follows:(1)The interplatform rift shows a north-south distribution, and covers an area of 60000km2, with a length of 300km, and a width of 50～230km. Deep-water shale and argillaceous dolomite were deposited in the trough. (2)The interplatform rift forming is closely related to three factors of continent breaking up, faulting and differential sedimentation, and experienced eight tecotinic evolution stages from late Sinian(early deposition of Dengying Fromation) to early Cambrian(middle-late deposition of Qiongzhusi Formation), including four times extensional movement, three times exposure-denudation, and a rapid filed decaying stage. (3)Three sets of source rocks, including three members separately from Dengying Formation, Maidiping Formation and Qiongzhusi Formation, developed in the interplatform rift, where is the hydrocarbon generating center and the hydrocarbon supplying center. Dolomite reservoir of member 2 and member 4 of Dengying Formation developed with large area on both sides of the rift, and the high quality reservoir distributed along interplatform margins. Source rock and reservoir contact laterally. (4)It is put forward that the zones along the both sides of interplatform rift are the most prospective region of Sinian exploration. And the eastern side of it is preferred in recent exploration. It is predicted that Jiulongshan structure in Suining-Jiange area and Yanggaosi structure in Rongchang-Luzhou area should be the next exploration targets.关键词
四川盆地/震旦系/台内裂陷/烃源中心/储层分布/成藏模式/勘探方向Key words
Sinian/Interplatform Rift/Center of source rocks/Reservoir distribution/Accumulation model/Exploration direction/Sichuan Basin分类
能源科技引用本文复制引用
周进高,沈安江,张建勇,郝毅,谷明峰,李文正..四川盆地德阳—安岳台内裂陷与震旦系勘探方向[J].海相油气地质,2018,23(2):1-9,9.基金项目
本文受中国石油勘探与生产分公司重大勘探项目 "四川盆地乐山—龙女寺古隆起震旦系沉积相及储层分布规律研究"(2012ZD01-02-03)、国家科技重大专项"大型油气田及煤层气开发"(2011ZX05004-002)、中国石油集团重大专项"深层油气勘探开发关键技术研究"(2014E-32-02)资助 （2012ZD01-02-03）
