發(fā)布時間：2018-05-18 06:40

  本文選題：杏十區(qū) + 斷點��； 參考：《東北石油大學(xué)》2017年碩士論文

【摘要】：以往針對斷層邊部剩余油研究多從儲層非均質(zhì)性、微幅度構(gòu)造、開發(fā)動用狀況等角度分析,而忽視斷裂幾何學(xué)、斷裂結(jié)構(gòu)對剩余油分布的控制。為此,深入開展井震結(jié)合構(gòu)造解釋的工作,開展研究區(qū)斷層精細(xì)解釋以及附近微幅度構(gòu)造的精細(xì)識別刻畫,提高斷層刻畫的精度,對剩余油的挖潛工作具有重要的指導(dǎo)意義。本次研究對杏十區(qū)的區(qū)域構(gòu)造特征及幾何運動學(xué)特征進(jìn)行了分析,詳細(xì)厘定斷裂活動期次,系統(tǒng)剖析斷裂形成演化歷史。并且應(yīng)用井震結(jié)合與地震層位解釋技術(shù)對斷點進(jìn)行了核查及研究了斷點的分布特征、規(guī)律,發(fā)現(xiàn)存在單斷層一井多斷的井震矛盾。針對這種矛盾我們應(yīng)用斷裂分段生長理論對斷裂進(jìn)行重新解釋�；�于對國內(nèi)外斷裂研究調(diào)研和區(qū)內(nèi)測井和地震資料實際,通過大量的解釋工作,提出了“斷裂生長演化機(jī)制指導(dǎo),測井地震約束”的單期次斷裂刻畫的方法。并以此方法對整個杏十區(qū)斷層進(jìn)行了重新識別,提高了斷層的刻畫精度,為指導(dǎo)挖掘斷層邊部剩余潛力提供堅實的地質(zhì)依據(jù)。在本次研究中取得的具體成果及認(rèn)識如下:(1)區(qū)域經(jīng)歷三期構(gòu)造運動,各條斷層均存在不同程度的同生現(xiàn)象,表明薩葡油層斷裂具有多期活動特征;(2)進(jìn)行斷點核實與分布特征分析,精細(xì)解釋斷層附近地震層位和斷層主體斷面,為后續(xù)工作打下堅實基礎(chǔ);(3)弄清了大斷裂生長演化成因及機(jī)制,大斷裂具有“平面分段生長,垂向分期演化”的特點;(4)斷裂生長演化機(jī)制指導(dǎo),測井地震資料約束,形成一套大斷層單期識別方法,一井多斷斷點的歸屬更加合理;(5)在精細(xì)斷層解釋的基礎(chǔ)上,基于斷層生長機(jī)制建立斷層邊部微構(gòu)造識別方法和標(biāo)準(zhǔn),定量刻畫微構(gòu)造分布范圍;(6)綜合分析構(gòu)造、注采關(guān)系和潛力砂體,優(yōu)選優(yōu)選出44個有利目標(biāo)區(qū),其中12個一類有利區(qū)、11個二類有利區(qū)和21個三類有利區(qū)。
[Abstract]:In the past, most of the researches on residual oil along the fault edge were based on reservoir heterogeneity, micro-structure, exploitation and production conditions, but the fault geometry and the control of fault structure on the distribution of remaining oil were ignored. Therefore, it is of great significance to carry out the work of combining well and earthquake with structural interpretation, fine interpretation of faults and fine identification and characterization of nearby micro-amplitude structures in the study area, so as to improve the accuracy of fault characterization, which is of great significance for the work of tapping potential of remaining oil. In this study, the regional tectonic characteristics and geometric kinematics characteristics of Xingshi area were analyzed, and the fault active periods were determined in detail, and the evolution history of fault formation was systematically analyzed. In addition, the well shock combined with seismic horizon interpretation technique is used to check the fracture point and study the distribution characteristics and regularity of the fracture point. It is found that there is a conflict of well earthquakes with multiple faults in a single fault well. In view of this contradiction, we reinterpret the fracture by using the theory of segmental growth of fracture. Based on the investigation of fault at home and abroad and the practice of well logging and seismic data in the area, a method of single-stage fault characterization is put forward, which is guided by the mechanism of fault growth and evolution, and restricted by logging earthquakes through a great deal of interpretation work. By this method, the fault in Xingshi area is rerecognized, the accuracy of fault description is improved, and a solid geological basis is provided for guiding the excavation of residual potential along the fault edge. The concrete results and understandings in this study are as follows: 1) the region experienced three stages of tectonic movement, and each fault has different degrees of syngenesis. The results show that the fault of Sapu reservoir has multi-stage active characteristics, such as verification of fault point and analysis of distribution characteristics, and fine interpretation of seismic horizon and main fault section near the fault. In order to lay a solid foundation for the following work, the causes and mechanism of the growth and evolution of the large faults are clarified. The large faults have the characteristics of "plane subsection growth, vertical phased evolution". The fault growth and evolution mechanism is guided by the well logging seismic data constraints. A set of single phase identification methods for large faults is formed, and the attribution of multiple fault points in a well is more reasonable. On the basis of fine interpretation of faults, a method and standard for identification of microstructures along the fault edge are established based on fault growth mechanism. A quantitative description of the distribution range of microtectonics is presented. The comprehensive analysis of the structure, injection-production relationship and potential sand bodies shows that 44 favorable target areas have been selected, of which 12 are favorable areas, 11 are favorable zones of second class and 21 are favorable areas of three types.
【學(xué)位授予單位】：東北石油大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：P618.13

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本文編號：1904822