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| 黄骅坳陷古近系沙一段下部碳酸盐岩成岩作用 | |
| 引用本文： | 曾德铭 赵,敏,石,新 王,伟 杜江民 侯,志.黄骅坳陷古近系沙一段下部碳酸盐岩成岩作用[J].中国地质,2010,37(1):110-116. |
| 作者姓名： | 曾德铭 赵 敏 石 新 王 伟 杜江民 侯 志 |
| 作者单位： | 1. 西南石油大学资源与环境学院,四川,成都,610500 2. 大港油田公司,天津,300280 3. 川庆钻探工程公司地质勘探开发研究院,四川,成都,610051 |
| 基金项目： | 西南石油大学校级科技基金(2007XJZ047);;四川省重点学科建设项目(SZD0414)联合资助 |
| 摘 要： | 黄骅坳陷古近系沙河街组沙一段下部发育一套厚20～60m的湖相碳酸盐岩,并在生物灰岩、鲕粒灰(云)岩和泥晶白云岩中显示丰富的油气,具有良好的勘探前景。通过对研究区沙一段下部10余口钻井岩心、薄片的宏观及微观观察,结合地球化学特征,对成岩作用类型及特征进行较详细的研究,探讨了成岩作用与储集空间演化的关系。研究发现区内沙一段下部碳酸盐岩的成岩演化过程复杂,各种成岩作用发育,储层质量的好坏受成岩作用影响明显。压实压溶作用、多期方解石和白云石的胶结作用导致粒间孔、生物体腔孔和格架孔大幅度减少;混合水白云石化作用、同生期-准同生期和埋藏期溶解作用是优质储层形成的关键,形成了大量的晶间孔、晶间溶孔、粒内溶孔、铸模孔、生物体腔孔、粒间溶孔和溶蚀缝,成为现今该层段的主要储集空间。 |
| 关 键 词： | 成岩作用 储层 储集空间 湖相碳酸盐岩 沙一段下部 黄骅坳陷 |
Diagenesis of carbonate rocks in the lower part of 1st Member of Eogene Shahejie Formation in Huanghua depression |
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| ZENG De-ming,ZHAO Min,SHI Xin,WANG Wei,DU Jiang-min,HOU Zhi.Diagenesis of carbonate rocks in the lower part of 1st Member of Eogene Shahejie Formation in Huanghua depression[J].Chinese Geology,2010,37(1):110-116. | |
| Authors: | ZENG De-ming ZHAO Min SHI Xin WANG Wei DU Jiang-min HOU Zhi |
| Institution: | 1.Department of Resource and Environment;Southwest Petroleum University;Chengdu 610500;Sichuan;China;2.Dagang Oilfield Company;Tianjin 300280;3.Geological Exploration and Development Research Institute;Sichuan-Changqing Drilling Engineering Company;Chengdu 610051;China |
| Abstract: | There is a set of lacustrine facies carbonate rocks 20-60m in thickness in the lower part of 1st Member of Eogene Shahejie Formation in the Huanghua depression.There exist rich oil and gas resources in biological limestone,oolitic(dolomite) limestone and micrite dolomite,suggesting good exploration prospects.Through macro-and micro-observation of thin sections and rocks from more than 10 wells in combination with geochemical characteristics,the authors made a detailed investigation into diagenetic types and... |
| Keywords: | diagenesis reservoir reservoir space lacustrine facies carbonate rocks lower part of 1st Member of Shahejie Formation Huanghua depression |
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