琼东南盆地陵水凹陷储层物性特征对比分析  

Comparative analysis of reservoir physical properties in Lingshui Sag,Qiongdongnan Basin

作　　者：郑磊 闫琢玉 李冬林 张东峰 张丽霞 Zheng Lei;Yan Zhuoyu;Li Donglin;Zhang Dongfeng;Zhang Lixia(CNOOC EnerTech-Drilling&Production Co.,Guangdong Zhanjiang 524057)

机构地区：[1]中海油能源发展股份有限公司工程技术湛江分公司,广东湛江524057

出　　处：《石化技术》2021年第8期135-136,148,共3页Petrochemical Industry Technology

摘　　要：琼东南盆地陵水凹陷作为万亿大气区重要勘探区域,随着“状元”井测试成功获得高产油气流,储层物性研究是该领域油气勘探关键。针对现状和难点,充分利用钻井岩屑、壁芯分析测试资料,对“榜眼”井岩石学特征、成岩作用、储层物性、影响因素进行综合研究。结果表明:黄流组砂体以极细与细粒占优,梅山组砂体粒级范围从粉砂至粗粒分布广。虽然梅山组埋深比黄流组深300m,但两层位压实强调系数相近,推断梅山组超压有抵御压实,保护孔隙的作用。该项研究成果对该区具有重要指导意义。Lingshui Sag of Qiongdongnan Basin is an important exploration area of one hundred million atmosphere.With the successful test of“Zhuangyuan”well to obtain high-yielding oil flow,the study of reservoir physical property is the key to oil and gas exploration in this field.In view of the present situation and difficulties,the petrological characteristics,diagenesis,reservoir physical properties and influencing factors of the“second hole”well are comprehensively studied by making full use of the data of drilling cutts and wall core analysis.The results show that the sandbodies of Huangliu Formation are dominated by very fine and fine grains,and the sand size of Meishan Formation is widely distributed from silt to coarse grains.Although the buried depth of Meishan Formation is 300m deeper than that of Huangliu Formation,the compaction stress coefficient of the two layers is similar,so it can be inferred that the overpressure of Meishan Formation can resist compaction and protect pores.This research result has important guiding significance to this area.

关 键 词：岩石学特征 成岩作用 储层物性 影响因素 

分 类 号：P618.13[天文地球—矿床学]