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安参1井中生界沉积相及储层特征研究

石油实验地质

2002年 24卷第3期

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Title

THE MESOZOIC DEPOSITIONAL FACIES AND RESERVIOR CHARACTERISTICS OF WELL AN’CAN-1 IN THE HEFEI BASIN

作者

邱连贵辛忠斌徐春华徐佑德

Authors

QIU Lian-gui XIN Zhong-bin XU Chun-hua XU You-de

单位

中国石化, 胜利油田有限公司, 地质科学研究院, 山东, 东营, 275015

Organization

Institute of Geological Sciences, Shengli Oilfield, SINOPEC, Dongying, Shandong 257015, China

摘要

安参1井是胜利油田有限公司在合肥盆地部署的第一口参数井,笔者通过对其目前钻遇的中生代地层的岩石矿物学及地球物理学特征的分析,对其沉积相及储层特征进行了深入研究。研究表明安参1井中生代地层在纵向上自下而上总体表现为进积的沉积特征,即由早侏罗世的湖相沉积—中晚侏罗世的河湖交替相、河流相—早白垩世的河流相。安参1井中生界砂岩储集性能较差,以超低孔、渗为特征,但对储集天然气而言仍可作为有效的储集层。

Abstract

Well An'can-1 is the first stratigraphic well drilled in the Hefei Basin by Shengli Oilfield Co. Ltd. The depositional facies and reservoir characteristics of the Mesozoic were discussed based on the rock mineralogy and geophysical properties of the sequence. It showed a progradation for the Mesozoic sedimentation fron top to bottom with lake deposit in the Early Jurassic to ineterbedded lacustrine and fluvial deposit or fluvial deposit in the Middle and Late Jurassic to fluvial facies in the Early Cretaceous. The reservoirs in the Mesozoic sandstones were poor and were dominated by very low porosity and permeability. They may be effective reservoirs for gas accumulation.

关键词：

沉积相; 储层; 中生界; 安参1井; 合肥盆地;

Keywords:

depositional facies; reservoir; Mesozoic; well An’can-1; the Hefei Basin;

基金项目

DOI

https://doi.org/10.11781/sysydz200203228