本文選題：松遼盆地 + 溢流相��； 參考：《中國石油大學(xué)(華東)》2015年碩士論文

【摘要】：本論文題目來源于國家973火山巖項(xiàng)目課題《火山巖儲層及其油氣藏識別與評價技術(shù)》�；鹕綆r油氣藏在大慶油田有著巨大的潛力,已經(jīng)成為該探區(qū)巖性氣藏的一個快速增長點(diǎn)。在過去十幾年時間里,徐家圍子斷陷火山巖油氣藏勘探多為尋找構(gòu)造高部位、火山機(jī)構(gòu)明顯地區(qū)。隨著明顯火山機(jī)構(gòu)的逐漸探明、深層天然氣“精細(xì)勘探”思路的轉(zhuǎn)變,同樣具有工業(yè)氣流的溢流相火山巖逐漸成為勘探熱點(diǎn)。如何對遠(yuǎn)離火山口區(qū)且反射特征不典型的溢流相火山巖開展研究,同時識別出溢流相火山巖有利儲層成為火山巖儲層精細(xì)勘探的主要問題。相對比平穩(wěn)沉積的沉積巖地層,深層火山巖具有多級次內(nèi)幕結(jié)構(gòu),地層結(jié)構(gòu)復(fù)雜、多噴發(fā)期次疊置嚴(yán)重、橫向非均質(zhì)性強(qiáng),地震剖面上雜亂斷續(xù)成層性差。針對此問題,本文綜合地質(zhì)、地震、測井等多手段采用組內(nèi)部劃段、段內(nèi)識別火山巖地層、段內(nèi)劃分火山期次、以期次為時間格架精細(xì)剖分火山噴發(fā)巖體的思路對火山巖地層進(jìn)行精細(xì)解釋,剖析火山巖地層的疊置關(guān)系�；鹕綆r相是控制儲層分布范圍,對于火山巖相研究非常重要。本文在單井優(yōu)勢巖相確定基礎(chǔ)上,結(jié)合地震剖面、水平切片以及優(yōu)選出的相干、曲率、均方根振幅等多屬性對各期次火山巖相進(jìn)行識別,逐步劃分為火山通道相、爆發(fā)相、溢流相等三種巖相,為后續(xù)圈定溢流相有利儲層奠定基礎(chǔ)�；鹕綆r地層復(fù)雜內(nèi)幕制約了儲層精細(xì)預(yù)測,針對這一問題本文利用火山噴發(fā)巖體約束疊后反演,開展火山巖儲層疊后預(yù)測,取得較好預(yù)測效果。針對火山巖巖性復(fù)雜的特點(diǎn),開展復(fù)雜巖性的巖石物理敏感參數(shù)分析,將火山巖分為基性、中性和酸性火山巖巖性組,并確定了各火山巖性組儲層的門檻值,以此為指導(dǎo)思路開展疊前彈性反演實(shí)現(xiàn)對火山巖巖性及其對應(yīng)儲層的定量劃分和預(yù)測。最終,綜合儲層物性分析、儲層預(yù)測成果和火山巖相劃分結(jié)果優(yōu)選了溢流相火山巖有利儲層區(qū)帶。雖然溢流相火山巖儲層勘探還處于初步并存在種種困難,但本次研究對推動后續(xù)復(fù)雜溢流相火山巖研究和提高精細(xì)火山巖預(yù)測的勘探精度具有重要的意義。
[Abstract]:The topic of this paper is from the national 973 volcanic rock project, the identification and evaluation technology of volcanic reservoir and its oil and gas reservoir. Volcanic reservoir has great potential in Daqing Oilfield and has become a rapid growth point of lithologic gas reservoir in this exploration area. In the past ten years, the exploration of volcanic oil and gas reservoirs in Xujiaweizi fault depression is mostly to find the high structural position and the obvious volcanic mechanism. With the gradual discovery of obvious volcanic mechanism and the transformation of the idea of "fine exploration" of deep natural gas, the overflow volcanic rock with industrial airflow has gradually become a hot spot of exploration. How to study the overflow facies volcanic rocks which are far away from the crater area and whose reflection characteristics are not typical and at the same time identify that the favorable reservoir of the overflow facies volcanic rocks becomes the main problem of the fine exploration of volcanic rock reservoir. In contrast to the sedimentary strata of stable deposition, the deep volcanic rocks have multistage subinsider structure, complex stratigraphic structure, severe multiple eruptions, strong lateral heterogeneity, and poor stratification on the seismic profile. In order to solve this problem, in this paper, comprehensive geological, seismic, logging and other means are used to segment within the group, in which volcanic strata are identified, and volcanic periods are divided within the section. It is expected that the time frame fine division of volcanic eruptive rock mass can explain the volcanic strata and analyze the superposition of volcanic strata. Volcanic facies control reservoir distribution, and are very important for the study of volcanic facies. Based on the determination of dominant lithofacies of single well, combined with seismic profile, horizontal section and selected coherence, curvature and root mean square amplitude, the subvolcanic facies are identified and divided into volcanic passageway facies and eruptive facies step by step. The spillway is equal to three lithofacies, which lays the foundation for delineating the favorable reservoir of overflow facies. The complicated interior of volcanic strata restricts the fine prediction of reservoir. In view of this problem, the post-stack prediction of volcanic reservoir is carried out by using the constrained post-stack inversion of volcanic eruptive rock mass, and good prediction results are obtained. In view of the complex lithology of volcanic rock, the petrophysical sensitive parameter analysis of complex lithology is carried out, and the volcanic rock is divided into basic, neutral and acidic volcanic lithology groups, and the reservoir threshold value of each volcanic lithologic group is determined. Based on this idea, prestack elastic inversion is used to realize the quantitative division and prediction of volcanic lithology and its corresponding reservoirs. Finally, comprehensive reservoir physical analysis, reservoir prediction results and volcanic facies division results selected overflow facies volcanic rocks favorable reservoir zone. Although the exploration of overflow volcanic rock reservoir is still at a preliminary level and some difficulties exist, this study is of great significance in promoting the further study of complex overflow facies volcanic rock and improving the exploration accuracy of fine volcanic rock prediction.
【學(xué)位授予單位】：中國石油大學(xué)(華東)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：P631.4;P618.13

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