柴达木盆地南翼山浅层油藏岩石类型及沉积模式

张长好，郭召杰，崔俊，扈福堂

doi:10.11764/j.issn.1672-1926.2012.05.903

天然气地球科学 >

2012 , Vol. 23 >Issue 5: 903 - 908

DOI: https://doi.org/10.11764/j.issn.1672-1926.2012.05.903

天然气地质学

柴达木盆地南翼山浅层油藏岩石类型及沉积模式

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1.北京大学地球与空间科学学院，北京 100871；2.中国石油青海油田勘探事业部，甘肃敦煌 736202;
3.中国石油青海油田勘探开发研究院，甘肃敦煌 736202;
4.中国石油青海油田钻采工艺研究院，甘肃敦煌 736202

张长好(1977-)，男，河北抚宁人，工程师，在读硕士，主要从事生产管理和随钻地质研究.E-mail:zchqh@petrochina.com.cn.

收稿日期: 2011-11-25

修回日期: 2012-08-09

网络出版日期: 2012-10-10

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Lithotype and Sedimentation Model of Nanyishan Shallow Oil Pools

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1.School of Earth and Space Sciences, Dunhuang 736202, China;3.Research Institute of Exploration and Exploitation,
PetroChina Qinghai Oilfield Company, Dunhuang 736202, China;4.Research Institute of Drilling and Production Technology,
PetroChina Qinghai Oilfield Company, Dunhuang 736202, China

Received date: 2011-11-25

Revised date: 2012-08-09

Online published: 2012-10-10

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摘要

南翼山油田位于柴达木盆地西部北区，是在南北两翼同生断层挟持下形成的同沉积背斜，整体岩性较细，是目前柴达木盆地主要的难采储量分布区。为实现南翼山浅层低孔、低渗油田油藏的有效开发，开展了南翼山地区储层岩石类型及沉积模式研究。在系统总结前人对南翼山浅层油藏岩石类型认识的基础上，通过薄片观察、岩心描述、碳酸盐岩分析资料，综合分析认为南翼山浅层岩性主要以半深湖相泥质纹层与粉砂纹层互层为主，并针对研究区岩性的特殊性,结合南翼山岩石类型的实际情况,建议该区岩石命名采用成分命名原则。

关键词： 柴达木盆地; 南翼山浅油藏; 藻灰岩; 沉积模式

本文引用格式

张长好，郭召杰，崔俊，扈福堂 . 柴达木盆地南翼山浅层油藏岩石类型及沉积模式[J]. 天然气地球科学, 2012 , 23(5) : 903 -908 . DOI: 10.11764/j.issn.1672-1926.2012.05.903

Abstract

Nanyishan shallow oil pool lies in the northern part of western Qaidamu basin,which is one of the important low permeability and low porosity reservoirs of Qinghai Oilfield Company.It is a synsedimentary anticline,which is clamped by syngenetic faults on north and south wings.The researches of lithotype and sedimentation mode are necessary for its efficient exploitation.Based on the previous research and through microscopic observations of plenty of rock slices and carbonate analyses,the paper proves that the lithology of the Nanyishan shallow oil pool formations is interlaced with pelytic and arenaceous laminae deposited in semi-deep lacustrine environment.Due to the particularity of its lithology,the paper recommended a naming system based on rock composition.

Key words： Qaidam basin; Nanyishan shallow pool; Algal limestone; Sedimentation model

参考文献

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