沉积正演模拟在准噶尔盆地吉木萨尔凹陷东斜坡二叠系梧桐沟组中的应用

王韬; 李婷; 郭文建; 张宇; 杨彤远; 杨翼波; 张建新

doi:10.3969/j.issn.1006-6535.2021.01.005

特种油气藏 >

2021 , Vol. 28 >Issue 1: 34 - 41

DOI: https://doi.org/10.3969/j.issn.1006-6535.2021.01.005

地质勘探

沉积正演模拟在准噶尔盆地吉木萨尔凹陷东斜坡二叠系梧桐沟组中的应用

王韬 ,
李婷 ,
郭文建 ,
张宇 ,
杨彤远 ,
杨翼波 ,
张建新

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1.中国石油新疆油田分公司,新疆克拉玛依 834000;
2.中国石油长城钻探工程有限公司,辽宁盘锦 120010

王韬(1990—),男,工程师,2012年毕业于中国石油大学(华东)资源勘查专业,2015年毕业于该校地质资源与地质工程专业,获硕士学位,现从事油气资源评价及油气勘探工作。

收稿日期: 2020-05-15

修回日期: 2020-10-23

网络出版日期: 2021-04-27

基金资助

国家油气重大专项“新疆北部深层区域构造格架、沉积演化与有利区带评价”(2017ZX05008006-003-001)、“准噶尔盆地岩性地层油气藏分布规律与目标评价”(2017ZX05001-004)

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Application of Sedimentary Forward Modeling of the Permian Wutonggou Formation in the East Slope of Jimusar Sag, Junggar Basin

Wang Tao ,
Li Ting ,
Guo Wenjian ,
Zhang Yu ,
Yang Tongyuan ,
Yang Yibo ,
Zhang Jianxin

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1. PetroChina Xinjiang Oilfield Company, Karamay, Xinjiang 834000, China;
2. CNPC Great Wall Drilling Company,Panjin, Liaoning 120010,China

Received date: 2020-05-15

Revised date: 2020-10-23

Online published: 2021-04-27

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摘要

针对准噶尔盆地吉木萨尔凹陷东斜坡二叠系梧桐沟组有利沉积相带不明确的问题,综合利用钻井、地震等资料,应用沉积正演模拟方法,再现研究区梧桐沟组沉积演化过程。结果表明:研究区梧桐沟组在先水进再水退背景下发育辫状河三角洲—湖泊沉积体系,物源主要来自古西凸起,三角洲前缘相带及砂体自下而上呈现先退积再进积的叠置关系;近凹陷中心形成岩性圈闭,近凹陷边缘形成断层-岩性圈闭;梧一段顶部和梧二段底部的岩性圈闭有利于稀油油藏成藏。该研究为研究区后期勘探部署及开发调整提供了参考。

关键词： 沉积正演模拟; 沉积演化; 辫状河三角洲; 油气成藏; 梧桐沟组; 准噶尔盆地

本文引用格式

王韬 , 李婷 , 郭文建 , 张宇 , 杨彤远 , 杨翼波 , 张建新 . 沉积正演模拟在准噶尔盆地吉木萨尔凹陷东斜坡二叠系梧桐沟组中的应用[J]. 特种油气藏, 2021 , 28(1) : 34 -41 . DOI: 10.3969/j.issn.1006-6535.2021.01.005

Abstract

In view of the problem of unclear favorable sedimentary facies belts of the Permian Wutonggou Formation in the east slope of Jimusar Sag, Junggar Basin, the sedimentary evolution process of the Permian Wutonggou Formation in the study area was represented with sedimentary forward modeling method based on drilling and seismic data. The results show that braided river deltation-lacustrine sedimentary system was developed in the Wutonggou Formation in the study area under the condition of first water inflow and then water outflow, the provenance mainly came from the Guxi Uplift, and the delta front facies and sand presented a superimposing relationship of first retrogradation and then progradation from bottom to top; lithological traps were formed near the center of the Sag, and fault-lithological traps were formed near the edges of the Sag; lithological traps at the top of the Wutonggou Member 1 and the bottom of the Wutonggou Member 2 were conducive to the formation of light oil reservoirs. This study provides a reference for later exploration deployment and development adjustment in the study area.

Key words： sedimentary forward modeling; sedimentary evolution; braided river delta; hydrocarbon accumulation; Wutonggou Formation; Junggar Basin

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