塔里木盆地哈拉哈塘地区东河砂岩段成岩作用及对孔渗影响

doi:10.11764/j.issn.1672-1926.2018.10.022

天然气地球科学

塔里木盆地哈拉哈塘地区东河砂岩段成岩作用及对孔渗影响

陈秀艳，贾进华，崔文娟，张立平，周波，申银民，陈延贵

1.中国石油勘探开发研究院，北京 100083；2.中国地质图书馆，北京 100083； 3.中国石油塔里木油田公司勘探开发研究院，新疆库尔勒 841000

收稿日期:2018-03-02 修回日期:2018-10-23 出版日期:2019-01-10
作者简介:陈秀艳(1979-)，女，黑龙江哈尔滨人，工程师，博士，主要从事层序地层学及沉积储层研究.E-mail：：chenxiuyan1004@petrochina.com.cn.
基金资助:
国家科技重大专项“岩性地层油气藏成藏规律、关键技术及目标评价”(编号：2011ZX05001)资助.

Diagenesis and its effect on pore and permeability of Donghe sandstone in Hanilcatam area，Tarim Basin

Chen Xiu-yan，Jia Jin-hua，Cui Wen-juan，Zhang Li-ping，Zhou Bo，Shen Yin-min，Chen Yan-gui

1.Research Institute of Petroleum Exploration & Development，PetroChina，Beijing 100083，China;
2.China Geological Library，Beijing 100083，China;
3.Research Institute of Exploration and Development，PetroChina Tarim Oilfield Company，Korla 841000，China

Received:2018-03-02 Revised:2018-10-23 Online:2019-01-10

摘要/Abstract

摘要： 通过岩心观察、薄片鉴定、扫描电镜、铸体薄片、阴极发光及物性资料分析，对塔里木盆地哈拉哈塘地区东河砂岩段深埋优质储层的成岩作用、孔隙成因及对孔渗影响进行研究。结果表明，东河砂岩处于中成岩A2—B期，碳酸盐胶结物的胶结作用及溶蚀作用是重要的成岩事件。早期碳酸盐胶结作用、低的地温梯度和短期的深埋藏能够增强储层抗压实能力，保留更多原生孔隙；而晚期碳酸盐胶结能够填充有机酸溶解颗粒产生的粒间溶孔和粒内溶孔，同时晚期碳酸盐胶结物再溶蚀又能够形成次生孔隙。在纵向上及平面上碳酸盐胶结物含量与储层孔隙度和渗透率为负相关关系，据此可对储层物性进行预测和评价。

关键词: 东河砂岩, 成岩作用, 胶结作用, 溶蚀作用, 碳酸盐胶结物

Abstract: Based on the analyses of core observation，thin slice identification，scanning electron microscope，cast thin slice，cathodoluminescence and physical property data，the diagenesis，pore formation and its effect on pore and permeability of Donghe sandstone，deep buried high quality reservoir in Hanilcatam area of Tarim Basin are studied.Donghe sandstone is in the stage of the middle diagenesis A2-B.The cementation and dissolution of carbonate cements are important diagenetic events.Carbonate cementation of early diagenesis，low geothermal gradient and short term deep burial can enhance the anti-compacting capacity of the reservoir，which is good for keeping more primary pores.The carbonate cementation of later diagenesis can fill in intergranular pores and intragranular pores produced by organic acid dissolving particles，and the later dissolution of carbonate cements can also form secondary pores.The content of carbonate cement is negatively correlated with the porosity and permeability of the reservoir vertically and in the plane，so using the content of carbonate cement can predict and evaluate the physical property of the reservoir.

Key words: Donghe sandstone, Diagenesis, Cementation, Dissolution, Carbonate cement

中图分类号:

TE122.2+3

陈秀艳, 贾进华, 崔文娟, 张立平, 周波, 申银民, 陈延贵. 塔里木盆地哈拉哈塘地区东河砂岩段成岩作用及对孔渗影响[J]. 天然气地球科学, 2019, 30(1): 51–61.

Chen Xiu-yan, Jia Jin-hua, Cui Wen-juan, Zhang Li-ping, Zhou Bo, Shen Yin-min, Chen Yan-gui. Diagenesis and its effect on pore and permeability of Donghe sandstone in Hanilcatam area，Tarim Basin[J]. Natural Gas Geoscience, 2019, 30(1): 51–61.

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