海洋地质前沿2024，Vol.40Issue(6)：84-92,9.DOI:10.16028/j.1009-2722.2024.050
波斯湾盆地碳酸盐岩缓坡储层发育模式与分布规律
Development and distribution of carbonate ramp reservoir in the Persian Gulf Basin
摘要
Abstract
On the basis of regional study,combined with drilling,logging,and seismic profiling,the develop-ment and distribution of the Upper Cretaceous carbonate ramp reservoir in the Persian Gulf Basin were studied,and the depositional pattern,favorable reservoir development facies,and distribution control factors were clarified.The Upper Cretaceous carbonate ramp sediments could be divided into inner ramp,middle ramp,and outer ramp;and the inner ramp could be sub-divided into the sedimentary microfacies of Sabha,tidal flat,lagoon,tidal shoal,shoal,and intershoal.The shoal facies and tidal shoal facies are favorable for reservoir development.The identific-ation and prediction of shoal bodies are very important for oil and gas exploration in the area.The shoal lithofa-cies are mainly bioclastic limestone and the tidal shoal lithofacies are mainly bioclastic dolomite.In seismic pro-files,the shoal body is lenticular in shape,and the seismic reflections have a certain clinoform structure and gener-ally have weak amplitudes.The logging pattern of the shoal body is characterized by"three high and two low",namely,high acoustic time difference,high neutron,and high porosity or permeability;and low gamma and low density.In the Persian Gulf Basin,the palaeogeomorphic high formed by extrusion in the Late Cretaceous con-trolled the distribution characteristics and development degree of reservoir.This study provided a good reference for the exploration onto carbonate oil and gas to clarify the development and distribution of the reservoir in shoal and tidal shoal facies.关键词
波斯湾盆地/碳酸盐岩缓坡/浅滩/沉积模式/主控因素Key words
Persian Gulf Basin/carbonate ramp/shoal/depositional model/main controlling factors分类
海洋科学引用本文复制引用
刘小龙,程涛,苗顺德,张鑫,郭志峰,柳万春..波斯湾盆地碳酸盐岩缓坡储层发育模式与分布规律[J].海洋地质前沿,2024,40(6):84-92,9.基金项目
中国海洋石油集团有限公司"十四五"重大科技项目"海外油气勘探开发关键技术"(KJGG2021-0901) （KJGG2021-0901）
