Characteristics of Alluvial Fan in Baikouquan Formation of Wuerhe Oilfield in
详细信息
- 责任者：Gong Qingshun (PetroChina Hangzhou Research Institute of Petroleum Geology ; Hangzhou 310023 ; China) ; Huang Geping
- 刊名：Acta Sedimentologica Sinica
- 出版年：2010
- 卷期：28(6)
- 关键词：油藏 ; oil reservoirs ; 冲积扇 ; alluvial fans ; 准噶尔盆地 ; Junggar Basin
- 页码：p.1135-1144
- 图表：9 illus., 4 tables, 20 refs.
- 分类号：1003
- issnNo：ISSN1000-0550
- isbnNo：CN62-1038/P
摘要
Through the analysis of core, cast thin slice and wireline logging data, a typical retrograding sequence alluvial fan is found in Baikouquan Formation of Wuerhe Oilfield which is located in the Junggar Basin. Mid-fan intrafacies is developed in the lower-middle part of affuvial fan and end-fan intrafacies is developed in the upper part which remark the sedimentary environment that A/S (the ratio of available accommodation and sediment flux rate) increased under a transgression of the lake water body at Early Triassic. After the study, more appraisal wells were designed and drilled according to the distribution of favorable facies, and considerable hydrocarbon output in Baikouquan formation proved the accuracy of the conclusions. The laws summarized in this study will play an important role in the development of the reservoir for other oilfields.