低孔渗储层流体快速识别方法研究及应用  

Research on rapid fluid identification technology in low porosity and permeability reservoirs

作　　者：翟亮 魏杰瑞 Zhai Liang;Wei Jierui(China Oilfield Services Limited,Langfang Hebei 065201)

机构地区：[1]中海油田服务股份有限公司,河北廊坊065201

出　　处：《石化技术》2022年第2期176-177,共2页Petrochemical Industry Technology

摘　　要：本文通过分析目标区域内的常规测井、录井、气测等资料,在此基础上,以低孔渗储层岩性和油气水分布特征为研究出发点,结合测井物理原理与海上勘探井场时间紧的特点,研究低孔、低渗储层现场快速直观的测井定性解释方法。通过气测数据,建立了三角形气体组分图版,若呈现正三角形则为气层,反之则为油层;通过电阻率反演,考虑到井眼扩径会影响反演的准确性,需要结合钻井相关数据来进一步提高解释精度,以此帮助现场确定油气水层的划分。This paper collects the conventional logging,logging,gas logging and other data in the target area.In view of the characteristics of tight field time,a fast and intuitive logging qualitative interpretation method in low-porosity and low-permeability reservoirs is studied.Through the gas logging data,a triangular gas composition chart is established,if it is a regular triangle,it is a gas layer,otherwise it is an oil layer;by establishing the resistivity inversion process,more accurate data is obtained,which provides a basis for judging oil and gas water layers.Analysis of the acoustic wave data shows that the change of the sound velocity of the water-bearing rock is not obvious with the increase of the gas-bearing saturation.It presents an apparent mirror relationship.

关 键 词：低渗储层 流体识别 气测录井 电阻率反演 

分 类 号：P631.81[天文地球—地质矿产勘探] TE151[天文地球—地质学] TE142[石油与天然气工程—油气勘探]