测井技术2018，Vol.42Issue(2)：193-199,7.DOI:10.16489/j.issn.1004-1338.2018.02.012
胜利油田上古生界致密砂岩低对比度油藏测井解释模式细分技术
Well Logging Interpretation Model Subdivision Technique for Low Contrast Reservoir of Tight Sand Reservoir of Neopaleozoic in Shengli Oilfield
摘要
Abstract
Neopaleozoic tight sand reservoir in HuaGou area of Shengli oilfield is characterized by strong diagenesis,complex lithology,complex pore space and light oil.It is a typical physical property controlled reservoir.Due to the changes of lithology and the types of reservoir space the ability of resistivity to reflect the fluid properties is w eakened,w hich leads to the low contrast of oil and water layer.In addition,reservoirs with close porosity may have different production, some have high production due to self-blowing,but others need fracturing.So,the huge difference in production capacity has made it difficult to evaluate the reservoir effectiveness.In order to improve the accuracy of logging interpretation, a logging interpretation model subdivision technique is established based on the rock structure of sand body,reservoir space types,oil-gas potential and geochemical properties w hich can divide the reservoir space into three types:fractured reservoir,fracture-pore reservoir and matrix pore reservoir.Meanwhile,based on the evaluation of three kinds of parameters:macro-scale,micro-scale,and seepage,the flow units in the reservoir are subdivided and productivity prediction are made to achieve a fine evaluation of reservoir effectiveness and identification of fluid properties.Significant geological effects have been achieved in more than 10 wells such as well HGX101 by using this technique,w hich provide technical support for the discovery and development of high-quality reserves.关键词
测井解释/低对比度油藏/流动单元/层内细分/储层有效性/流体性质识别/产能预测Key words
log interpretation/low contrast reservoir/flow unit/subdivision model/reservoir ef-fectiveness/identification of fluid properties/productivity prediction分类
天文与地球科学引用本文复制引用
张晋言,刘伟,李绍霞,张文姣,齐国华..胜利油田上古生界致密砂岩低对比度油藏测井解释模式细分技术[J].测井技术,2018,42(2):193-199,7.基金项目
国家重大科技专项地震与井筒精细勘探关键技术(2016ZX05006-002) （2016ZX05006-002）
国家重大科技专项页岩气勘探地球物理技术研究(2017ZX05036-005) （2017ZX05036-005）
