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《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

卷:

第28卷

期数:

2006年第01期

页码:

32-36

栏目:

出版日期:

2006-03-15

文章信息/Info

Title:

Diagenetic Facies and Reservoir Capability of p1x 1 Sandstone in Tabamiao Area of Ordos Basin

作者:

王代国¹; 2

1.西北大学地质学系,陕西西安710069;2.中国石化华北分公司勘探开发研究院,河南郑州450006

Author(s):

WANG Dai-guo¹; 2

1. Department of Geology, Northwest University, Xi’an 710069, Shaanxi, China; 2. Research Institute o fExploration and Exploitation, North China branch of SINOPEC, Zhengzhou 450006, Henan, China

关键词:

鄂尔多斯盆地; 塔巴庙区块; 岩性圈闭; 含气性; 成岩作用; 孔隙演化; 成岩相; 有利区

Keywords:

Ordos Basin;  Tabamiao Area;  hydrocarbon content;  lithologic trap;  diagenesis;  pore evolution;  dia- genetic facies;  favorable area

分类号:

P618.130.21

DOI:

-

文献标志码:

A

摘要:

塔巴庙地区下石盒子组盒1段发育了辫状河道相沉积,砂体厚度10～60m,横向上连片,分布较稳定。 勘探证实,盒1段砂岩非均质性较强、含气性呈局部分布、不连片,圈闭类型为岩性圈闭气藏。根据薄片、铸体薄 片、X衍射、扫描电镜及压汞分析等资料对盒1段砂岩进行微观分析,了解其自生矿物类型、成岩作用及成岩序 列、孔隙演化特征和孔隙发育的影响因素,进而分析胶结物组合类型及其对储集性能影响关系。认为以胶结物 主要组合类型进行盒1段砂岩成岩相划分,结合录井油气显示、试气和测井等资料分析各成岩相储集性能、含气 性和测井曲线上反映特征,找出有利的成岩相,以此在平面上预测盒1段砂岩天然气富集有利区,为勘探寻找天 然气富集区提供依据。

Abstract:

The Tabamiao Area grows the braided river facies in p1x1period, in which sandstone thickness is from ten to sixty meters, and distribution has the feature of the stronger heterogeny, the lateral continuity and stabili- ty. Exploration proved it is local and discontinuous for hydrocarbon content distribution of p1x1sandstone and the trap type belongs to the lithologic trap. According to the lab data of thin-section, cast thin-section, X-ray diffrac- tion and injection, p1x1sandstone is known in some hands of self-reproducing mineral type, diagenesis and diage- netic sequence, pore evoluting feature and growing controlled factor. And then analysis is carried out on the main combination type of cement favorably growing pore in relation to which affects reservoir capability of the sand- stone. The diagenetic facies of p1x1sandstone is sorted in terms of the cement combination type, which is analyzed on some sides of reservoir capability, pore growing situation, hydrocarbon content, and log reflection character from log hydrocarbon showings, testing and log data, so the favorable diagenetic facies of p1x1sandstone is found to forecast the favorable accumulation area of p1x1sandstone in the plane and offer the evidence of the proving p1x1 gas accumulation.

参考文献/References:

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备注/Memo

备注/Memo:

[收稿日期]2005-04-14
[基金项目]中国石化股份有限公司“鄂尔多斯盆地塔巴庙地区天然气勘探”项目
[作者简介]王代国(1971-),男,四川广安人,工程师,从事天然气地质研究。

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更新日期/Last Update: 2006-03-20