靖安A地区长2低对比度油藏判识研究  

Identification research of Chang 2 low contrast reservoir in Jing’an A area

作　　者：徐宁[1] 苏幽雅[1] 王碧涛[1] 刘玉峰[1] 王云枫[1] XU Ning;SU Youya;WANG Bitao;LIU Yufeng;WANG Yunfeng(Oil Production Plant 3 of PetroChina Changqing Oilfield Company,Yinchuan Ningxia 750006,China)

机构地区：[1]中国石油长庆油田分公司第三采油厂

出　　处：《石油化工应用》2019年第6期96-100,共5页Petrochemical Industry Application

摘　　要：靖安油田中生界中浅层低对比油层分布普遍,电测井以低阻为显著特征,给测井流体识别带来很大困难,随着此类油藏逐步开发,其油层判识及评价建产等问题日益凸显。本文以靖安A地区长2低对比度油藏为研究对象,结合该区油田生产实践,以大量测井、实验分析及试油试采等资料为依据,在对低对比度油藏形成机理、油层岩石物理学成因本质研究的基础上,应用视电阻增大率、地层水矿化度、综合含油指数等方法对低对比度油层进行判识,同时结合该区成藏认识及生产实践对成藏主控因素进行详尽分析,并在油藏研究评价及建产中进行实践应用。Low-contrast reservoirs in Mesozoic and shallow strata are widely distributed in Jing'an oilfield, and low resistivity is the prominent feature of electric logging, which makes it difficult to identify logging fluid. With the gradual development of such reservoirs, the problems of reservoir identification, evaluation and production building become increasingly prominent.This paper takes Chang 2 low contrast reservoir in Jing'an A area as the research object,combines the production practice of the oilfield in this area, based on a large number of logging, experimental analysis and production test data,and on the basis of the formation mechanism of low contrast reservoir and the petrophysical genesis essence of reservoir,applies apparent resistivity increase rate, formation water salinity,comprehensive oil-bearing index and other methods to enter low contrast reservoir.At the same time,combined with the reservoir-forming knowledge and production practice,the main controlling factors of reservoir formation are analyzed in detail,and applied in reservoir research, evaluation and production.

关 键 词：低对比度 油层判识 成藏主控因素 评价建产 

分 类 号：TE122.23[石油与天然气工程—油气勘探]