川西及邻区蓬莱镇组沉积层序特征及有利储集相带预测

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基金项目: 西南石油局重点项目

SEDIMENTARY SEQUENCE CHARACTERISTICS AND FAVORABLE RESERVOIR FACIES—TRACT PREDICTION FOR THE PENGLAIZHEN FORMATION OF WEST SICHUAN AND ADJACENT AREAS

1.
Research Institute of Southwest Petroleum Bureau, CNSPC, Chengdu, Sichuan 610081 China
2. No.2 Geological Party of Southwest Petroleum Bureau, CNSPC, Chengdu, Sichuan 610081

摘要: 川西及邻区蓬苹镇组厚950～1600余米,属侏罗纪湖盆萎缩期的沉积。据层序界面及最大水进面联合标定,划分出Ⅲ₃和Ⅲ₄两套沉积层序。通过沉积基准面旋回分析,论述了蓬莱镇组沉积相类型及时空展布特征,预测了有利相带,并对有利油气富集区块进行了划分。
- 层序 /
- 有利相带 /
- 油气富集区块 /
- 川西及邻区 /
- 蓬莱镇组
Abstract: The Penglaizhen Formation in West Sichuan and adjacent areas is thick over 950-1600m,which was deposited during the wilting period of the Jurassic lake basins.Based on the combined demarcation of sequence interfaces and maximum transgressive interfaces,Ⅲ₃ and Ⅲ₄ two sets of sedimentary sequences are classified.By analyzing on the cycles of sedimentary base levels,the sedimentary facies types and apace-time distributive characteristics of the Penglaizhen Formation are discussed,the favorable facies tracts are predicted,and the favorable hydrocarbon-enriched blocks are classified.
- sequences /
- favorable facies tracts /
- hydrocarbon-enriched blocks /
- the Penglaizhen Formation /
- West Sichuan and adjacent areas

[1]	刘宝君等.层序地层学的研究与应用.成都:四川科学出版社,1994
[2]	郝子文等.四川省区域地质志.北京:地质出版社,1982