【作者】 陈明辉；

【导师】 刘吉余；

【作者基本信息】 东北石油大学 ， 矿产普查与勘探， 2012， 硕士

【摘要】 大情字井油田是吉林油田近年来发现的一个以低孔、低渗油气层为代表的以岩性控制为主的复杂油藏。该油田具有超亿吨级储量规模，是吉林油田增储上产的主要“战场”。大情字井油田位于吉林省乾安县境内，北距乾安县城约30km，南距长岭县城约70km。西北部为海坨子油田，东北与乾安油田相接，东南为大老爷府油田。区域构造位置位于松辽盆地南部中央坳陷区长岭凹陷中部，西北为大安－红岗阶地，东部为华字井阶地。油田的油藏地质特征复杂，开发动用难度大，给实物工作量的部署、油藏评价和油田开发带来很大困难。因此需要对大情字井油田油藏特征开展系统、综合研究分析。本文在区域地质规律分析总结的基础上，充分利用地质、地震、测井等学科相结合的综合评价技术，对大情字井地区的典型区块开展油藏特征研究。主要采用构造精细解释技术开展对构造特征研究，编制各含油层系高精度的顶面构造图，有效地识别出一些小断层及微型构造。采用沉积微相技术，开展了大情字井油田泉四段—姚一段各砂组沉积微相完善工作，编制了相应的组沉积微相图，有效预测砂体展布趋势。采用储层预测技术并结合钻井资料，编制各砂组砂体分布图。采用5700测井识别砂岩和油水层，并利用流体识别技术精确划分油水层。最后对各区块内油藏特征如油层分布特征、油水分布规律、油藏类型加以分析，落实有利含油范围，深化油层认识，做到点面结合，为加快油田勘探开发步伐和储量研究提供依据。更多还原

【Abstract】 Daqingzijing oil field has been found out as a complex reservoir in Jilin oil field inrecent years, which is lithology dominated represented for low holes, low permeabilityreservoirs. As the major “battlefield” for Jilin oil field Increasing the production, Daqingzijingoil field has a over100million tons reserve scale.Daqingzijing oil field located in Qianan county of Jilin province, north from Qianancounty is about30km, south from Changling country is about70km. The northwest part of itis Haituozi oil field, the northeast part is connected with Qianan oil field, and the southeastpart is Dalaoyefu oil field. The regional structure located in the middle of Changlingdepression, which lies in the central concave field of southern Songliao basin,Daan—Honggang terrace is in the northwest, and the Huazi terrace lies in the eastern part.it’s difficult for us to develop and put the reservoir into production,because the reservoir havecomplicated geological features,which brings big challenge to allocate practice jobs,evaluatereservoir and exploit oil-field. So carrying out integrated,systematic research for Daqingzioil-field reservoir characteristics is urgently needed.On the basis of the analysis of regional geological rules,this paper make full use of thecomprehensive evaluation technology,which combining geology,sesmic and logging todevelop reservoir characteristics research on the typical block of Daqingzijing area. Mainlyuse fine structure interpretation technology to carry out reseach on the structurecharactertistics,draw up the high-precision top fault and microstructure effectively. Adoptmicrofacies technology to complete quan4member to yao1member located in Daqingzijingarea microfacies job and draw up sand body distribution of each sand set. Use5700loggingseries to identify sandstone and oil-water layers, and take advantage of fluid identification todivide oil-water layers exactly. At last,we analyse oil reservoir distribution characteristics,oiland water distribution,the type of reservoir,and then make sure the favorable oildomain,deppen the cognition of reservoir,try our best to combine a point with an area,andprovide the basis for accelerate oil-field development and reserves research.更多还原