南堡油田地质录井方法识别油气水层研究

发布时间：2018-01-09 22:12

本文关键词：南堡油田地质录井方法识别油气水层研究　出处：《东北石油大学》2017年硕士论文　论文类型：学位论文

【摘要】：至上世纪90年代开始,南堡5号构造陆续钻探了一批井,除一两口井试油达到工业油气流外,其它井效果均不理想。目前,该构造勘探程度相对较低,对油气成藏机理和规律认识尚不够清晰,尤其是对于判断油气水层的四性规律认识不清,导致一些有工业价值的油气层被漏判或误判。本文结合录井新技术,对该构造老资料重新进行复查、建立了多套解释图版、发现了数套显示和储层,形成了一套适合该地区的录井技术储层评价方法,并且在整个南堡油田进行推广应用,效果良好。通过对新发现油气层进行试油,得到了良好的工业油气流,为南堡油田油藏认识和后期勘探开发提供了有力的技术支持。采用钻时分析、岩屑分析、皮克斯勒气测图版分析、气测曲线幅差形态法分析、地质分析、岩石热解分析、湿度比-烃斜率分析、净水压力气测值恢复与钻时结合分析,评价了研究区轻质油藏、低阻油藏油气显示,为油气层解释评价提供依据。采用XRF元素分析,岩石宏观特征、镜下微观特征和原子吸收光谱结合分析(针对南堡油田沙河街组一段玄武岩与砂岩混合储层,采用自然光下宏观观察岩石特征并描述其特性,采取显微镜下对岩石薄片进行观察和鉴定,依据组成岩石矿物成分的各种元素具有特殊吸收光谱的特性,利用原子吸收法测定岩石矿物中Si、Ca、Mg、Sl等元素的含量对岩石进行描述,综合上述方法判别储层岩性),录井与测井曲线响应特征分析的方法,建立了南堡油田岩性鉴别标准。通过南堡油田已钻井数据研究及岩心库实物观察,取样分析。建立了南堡油田“湿度比-烃斜率”解释方法,行业内首次在南堡油田应用解决了轻质油藏解释难的技术瓶颈。利用湿度比、特征组分比建立油层、油水同层、水层的解释评价标准,解决了南堡油田轻质油油藏、低阻油藏油气水解释评价技术难题。
[Abstract]:Since 90s of the last century, a lot of wells have been drilled in Nanbao No. 5 structure. Except for one or two wells, the effect of other wells is not satisfactory except for one or two wells. At present, the exploration degree of this structure is relatively low. The understanding of oil and gas accumulation mechanism and law is not clear enough, especially for judging the four characteristics of oil, gas and water reservoir, which results in some oil and gas reservoirs with industrial value being missed or misjudged. This paper combines with new logging technology. The old data of the structure were rechecked, several sets of interpretation plates were established, several sets of display and reservoir were found, and a set of mud logging technology reservoir evaluation methods suitable for this area was formed. And in the whole Nanbao oil field spread and application, the effect is good. Through testing the newly discovered oil and gas reservoir, a good industrial oil flow is obtained. It provides powerful technical support for the understanding of the reservoir in Nanbao Oilfield and later exploration and development. It adopts drilling time analysis, cuttings analysis, Picksler gas mapping plate analysis, gas logging curve amplitude-difference shape analysis and geological analysis. Rock pyrolysis analysis, humidity-ratio hydrocarbon slope analysis, water purification pressure gas recovery and drilling time analysis combined to evaluate the study area of light reservoirs, low-resistivity reservoirs oil and gas display. This paper provides the basis for the interpretation and evaluation of oil and gas reservoir. Using XRF element analysis, the macroscopic characteristics of rock are obtained. Microcosmic characteristics and Atomic absorption Spectroscopy combined Analysis (for basalt and sandstone mixed reservoir in Shahejie formation, Nanbao Oilfield, the characteristics of rock were observed and described under natural light. The thin rock slices were observed and identified under microscope. According to the special absorption spectra of various elements that make up the mineral components of rocks, the Si-CaAg-mg in rock minerals was determined by atomic absorption spectrometry. The contents of SL and other elements describe the rocks, synthesizing the above methods to identify the reservoir lithology, logging and logging curve response characteristics analysis method. The lithology identification standard of Nanbao oilfield is established. The interpretation method of "humidity ratio-hydrocarbon slope" is established through the study of drilling data and physical observation of core reservoir in Nanbao Oilfield. The technology bottleneck of light reservoir interpretation is solved for the first time in Nanbao Oilfield. The interpretation and evaluation criteria of oil layer, oil water layer and water layer are established by using humidity ratio and characteristic component ratio. The technical problems of oil-gas and water interpretation and evaluation in light oil reservoirs and low resistivity reservoirs in Nanpu Oilfield are solved.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TE142

【相似文献】