Sedimentary mode of shallow lacustr ine delta of large continental basin———An example from Putaohua Formation in nor thern Songliao Basin

  • ZHENG Leiqing
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  • 1. Lanzhou Institute of Geology,Chinese Academy of Sciences,Lanzhou 730000,China; 
    2. Research Institute of Petroleum Exploration & Development-Northwest(NWGI),PetroChina,Lanzhou 730020,China

Online published: 2007-06-15

Abstract

Based on the study of the high resolution sequence stratigraphy of Putaohua Formation referred to the data of core, seismic, well logging and laboratory test, the regional distribution of sedimentary facies and the characteristics of microfacies were discussed. It was presented that Putaohua Formation is shallow lacustrine delta deposit which is mainly composed of delta fore- facies zone and differs from typical delta deposit mode in three aspects, including that: fore delta zone spread over the whole lake basin, being exposed frequently above water level, with deep and semi -deep lacustrine facies relatively undeveloped; distributary channels were sheeted by lake water, and were divided into three types, including poorly sheeted, moderately sheeted and intensely sheeted; being without topset bed, foreset bed and bottomset bed, sedimentary mode of shallow lacustrine delta differs from typical Gilbert delta deposit. The distribution mode of shallow lacustrine delta fore- facies zone was established based on the sedimentary characteristics of different system tracts ( LST, TST, HST) , represented in lobate delta, braided stream delta and branched delta modes respectively.

Cite this article

ZHENG Leiqing . Sedimentary mode of shallow lacustr ine delta of large continental basin———An example from Putaohua Formation in nor thern Songliao Basin[J]. Lithologic Reservoirs, 2007 , 19(2) : 28 -34 . DOI: 10.3969/j.issn.1673-8926.2007.02.005

References

[ 1] 韩晓东, 楼章华, 姚炎明, 等. 松辽盆地浅水湖泊三角洲沉积动力学研究[ J] . 矿物学报, 2000, 20( 3) : 305- 312.
[ 2] 楼章华, 谢鸿森, 蔡希源, 等. 松辽盆地扶杨油层(K1q3+4) 沉积环境[ J] . 石油实验地质, 1997, 19( 1) : 71- 75.
[ 3] 柳成志, 辛仁臣, 王刚. 松辽盆地北部头台地区扶余油层浅水湖泊三角洲沉积特点[ J] . 大庆石油学院学报, 1998, 22( 1) : 68- 70.
[ 4] 吕晓光, 李长山, 蔡希源, 等. 松辽大型浅水三角洲湖盆沉积特征及前缘相储层结构模型[ J] . 沉积学报, 1999, 17( 4) : 572- 578.
[ 5] 卫平生, 潘树新, 王建功, 等. 湖岸线和岩性地层油气藏的关系研究———论“坳陷盆地湖岸线控油”[ J] . 岩性油气藏, 2007, 19( 1) : 27- 31.
[ 6] 刘本培.地史学教程[M] .北京: 地质出版社, 1986: 34- 43.
[ 7] 王建功, 卫平生, 郑浚茂, 等. 挠曲坡折带特征与油气勘探———以松辽盆地南部为例[ J] . 石油学报, 2005, 26( 2) : 1- 5.
[ 8] 王建功, 卫平生, 史永苏, 等. 松辽盆地南部西部斜坡区大规模岩性油气藏和地层超覆油气藏成藏条件[ J] . 中国石油勘探,2003, 8( 3) : 27- 30.
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