本文選題：稠油油藏 + 構(gòu)造特征��； 參考：《浙江大學(xué)》2015年碩士論文

【摘要】：本文所要研究的錦99塊杜家臺(tái)油層構(gòu)造位置位于遼河斷陷盆地西部凹陷西斜坡的西南部,北靠千12塊,南鄰錦7塊。為典型的層狀普通稠油,巖性以中細(xì)砂巖為主,砂礫巖與泥巖交互層,是一個(gè)被斷層遮擋的邊底水油藏。自1983年投入開發(fā)以來,由于該油田平面上砂巖連通系數(shù)較低,縱向上非均質(zhì)性突出,單層突進(jìn)現(xiàn)象嚴(yán)重,油層動(dòng)用極為不均。造成了注水見效的高滲透層含水高,產(chǎn)能低；而注水效果差的低滲透層地層壓力低,產(chǎn)液能力低的生產(chǎn)狀況。導(dǎo)致該塊采收率低,產(chǎn)量遞減快。開發(fā)過程中已經(jīng)暴露出明顯的層間矛盾,需要對(duì)油藏加深認(rèn)識(shí),建立精細(xì)的三維地質(zhì)模型,開展剩余油分布規(guī)律研究,提出挖潛措施。本次研究以油藏地質(zhì)研究為基礎(chǔ),從地質(zhì)、測(cè)井、地震多方面入手,開展地層、構(gòu)造、儲(chǔ)層宏觀分布和不同沉積體系研究。在地質(zhì)方面,以沉積學(xué)理論為指導(dǎo),采用“旋回為基礎(chǔ),標(biāo)志層控制,三級(jí)對(duì)比,逐級(jí)細(xì)分”的旋對(duì)比方法,進(jìn)行全區(qū)整體解剖,宏觀控制,以大層的區(qū)域統(tǒng)層、構(gòu)造精細(xì)解釋和儲(chǔ)層分布為主線,建立油田級(jí)油藏主體框架；并根據(jù)巖相、古生物以及電性標(biāo)志,確定了沉積微相類型和發(fā)育特征,進(jìn)行剖面沉積微相研究,分析了沉積微相和砂體分布規(guī)律,結(jié)合儲(chǔ)層測(cè)井二次解釋結(jié)果,建立了儲(chǔ)層、構(gòu)造、沉積相模型。以地質(zhì)模型為基礎(chǔ)開展了全油田規(guī)模的數(shù)值模擬研究,完成了儲(chǔ)量擬合、歷史擬合、搞清了各小層剩余油分布規(guī)律研究,區(qū)塊剩余油分布主要集中在斷層附近、砂巖尖滅帶及井網(wǎng)不完善區(qū)域,以及儲(chǔ)層物性相對(duì)較差以及剩余未射孔區(qū)域。
[Abstract]:The structural location of Dujiatai reservoir in Block Jin99 in this paper is located in the southwest of the west slope of the western depression of the Liaohe fault depression, and lies in the north of Qian12 blocks and the 7 blocks of the Nanjingjin basin. It is a typical stratified common heavy oil with medium and fine sandstone as the main lithology and interbedded between gravel and mudstone. It is an edge and bottom water reservoir blocked by fault. Since it was put into development in 1983, because of the low connectivity coefficient of sandstone in the oil field, the prominent vertical heterogeneity, the serious phenomenon of single layer protruding, and the extremely uneven production of the reservoir. The formation pressure and liquid production capacity of the low permeability layer with poor water injection efficiency are low and the water cut is high and the productivity is low in the high permeability layer with high water injection efficiency. As a result, the block oil recovery is low and the output is decreasing rapidly. The obvious interlayer contradiction has been exposed in the course of development, so it is necessary to deepen the understanding of the reservoir, establish a fine three-dimensional geological model, study the distribution law of remaining oil, and put forward the measures of tapping potential. Based on the study of reservoir geology, the study of stratigraphy, structure, macroscopic distribution of reservoir and different sedimentary systems is carried out from the aspects of geology, logging and earthquake. In geology, guided by sedimentology theory, the whole area is dissected and macroscopically controlled by the rotation contrast method of "cycle as basis, marker layer control, three-level contrast, subdivision". Fine structural interpretation and reservoir distribution are the main lines to establish the main framework of oilfield grade reservoirs, and according to lithofacies, paleontology and electrical indicators, the types and development characteristics of sedimentary microfacies are determined, and the sedimentary microfacies of profile are studied. The distribution law of sedimentary microfacies and sand bodies is analyzed. Combined with the results of reservoir logging secondary interpretation, the reservoir, structure and sedimentary facies models are established. Based on the geological model, the numerical simulation of the whole oilfield scale has been carried out, the reserve fitting and historical fitting have been completed, and the distribution law of remaining oil in each sub-layer has been clarified. The remaining oil distribution in the block is mainly concentrated near the fault. The sandstone pinching zone and well pattern are not perfect, and the reservoir physical property is relatively poor and the remaining unperforated area.
【學(xué)位授予單位】：浙江大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：P618.13

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本文編號(hào)：1896342