本文選題：一棵樹油田 + 小層劃分對(duì)比��； 參考：《東北石油大學(xué)》2015年碩士論文

【摘要】：一棵樹油田位于吉林省鎮(zhèn)賚縣境內(nèi),是1988年開發(fā)的老油田,經(jīng)過(guò)近25年的開發(fā),目前油田已經(jīng)進(jìn)入了特高含水開發(fā)期。在開發(fā)過(guò)程中出現(xiàn)了采出程度低,采油速度小,開發(fā)效果不好等現(xiàn)象,導(dǎo)致這些現(xiàn)象的原因主要是分層認(rèn)識(shí)不清,油層頂面構(gòu)造特征認(rèn)識(shí)不清,沉積環(huán)境及砂體分布規(guī)律認(rèn)識(shí)不清等。本論文研究目的是通過(guò)對(duì)構(gòu)造和沉積微相特征的研究,對(duì)有利區(qū)進(jìn)行預(yù)測(cè),提出擴(kuò)邊井井位及小層補(bǔ)射孔建議,以完善井網(wǎng)合理性,提高控制儲(chǔ)量。本論文主要針對(duì)一棵樹油田薩爾圖油層和高臺(tái)子油層地層分層認(rèn)識(shí)不清,油層頂界面構(gòu)造認(rèn)識(shí)不清,沉積環(huán)境及砂體分布認(rèn)識(shí)不清等問(wèn)題,應(yīng)用各種井下的地質(zhì)測(cè)井等資料,以層序地層學(xué)理論為指導(dǎo),采用了標(biāo)準(zhǔn)層控制下相控為基礎(chǔ)的小層對(duì)比方法對(duì)地層進(jìn)行精細(xì)的劃分與對(duì)比。用密井網(wǎng)測(cè)井資料及補(bǔ)射孔資料綜合地震資料解釋成果,得到一棵樹油田薩爾圖油層和高臺(tái)子油層的頂面構(gòu)造圖。通過(guò)對(duì)一棵樹油田的沉積背景、相標(biāo)志、等方面的研究結(jié)合研究區(qū)的資料分析,確定研究區(qū)儲(chǔ)層的沉積相,即一棵樹油田的薩爾圖、高臺(tái)子油層為扇三角洲前緣亞相沉積,研究一棵樹油田的沉積微相平面及空間的展布特征,分析儲(chǔ)層的沉積演化過(guò)程。利用一棵樹油田構(gòu)造和沉積微相特征及油水分布規(guī)律結(jié)合研究區(qū)動(dòng)態(tài)生產(chǎn)資料,對(duì)一棵樹油田進(jìn)行有利區(qū)預(yù)測(cè)。通過(guò)本論文的研究工作,將一棵樹油田薩爾圖油層劃分為5個(gè)小層;將高臺(tái)子油層劃分為20個(gè)小層。落實(shí)薩爾圖油層及高臺(tái)子油層的頂面構(gòu)造。在研究區(qū)范圍內(nèi)識(shí)別出三種沉積微相,即水下分流河道、水下溢岸薄層砂及水下支流間灣。提出了加密井、擴(kuò)邊井井位建議以及小層補(bǔ)射孔建議。
[Abstract]:Yigeshu Oilfield, located in Zhenlai County, Jilin Province, is an old oil field developed in 1988. After nearly 25 years of development, the oilfield has entered the stage of super high water cut development. In the process of development, some phenomena such as low recovery degree, low oil recovery rate and poor development effect have occurred. The main causes of these phenomena are that the recognition of stratification is not clear, and the structural characteristics of the top surface of oil reservoir are not clear. The sedimentary environment and the distribution of sand bodies are not well understood. The purpose of this paper is to predict the favorable area by studying the characteristics of structure and sedimentary microfacies, and to put forward the suggestion of expanding the well position and small layer to make up the perforation, so as to improve the rationality of well pattern and increase the controlled reserves. In this paper, aiming at the problems of unclear stratigraphic recognition of Saltu and Gaotaizi reservoirs, unclear understanding of the top interface structure of reservoir, and unclear understanding of sedimentary environment and sand body distribution, various downhole geological logging data are applied in this paper. Based on the theory of sequence stratigraphy, the fine division and correlation of stratigraphy are carried out by using the method of stratigraphic correlation based on facies control under the control of standard layers. Based on the comprehensive seismic interpretation results of dense well pattern logging data and supplementary perforation data, a top structure map of Saltu and Gaotaizi reservoirs in Gaoshu Oilfield is obtained. Based on the study of the sedimentary background, facies markers, and other aspects of the oil field, combined with the analysis of the data in the study area, the sedimentary facies of the reservoir in the study area were determined, that is, the Saltu of the Yakusu Oilfield, the Gaotaizi reservoir being subfacies of the fan delta front. The distribution characteristics of sedimentary microfacies plane and space are studied and the sedimentary evolution process of the reservoir is analyzed. Based on the characteristics of structure and sedimentary microfacies and the distribution of oil and water in Yigeshu Oilfield, the favorable area of Yigeshu Oilfield is predicted by combining the dynamic data of production in the study area. Through the research work in this paper, the Saartu reservoir in Yigeshu Oilfield is divided into 5 sublayers, and the Gaotaizi reservoir is divided into 20 sub-layers. Implement the top structure of Saltu reservoir and Gaotaizi reservoir. Three kinds of sedimentary microfacies were identified in the study area, namely, the underwater distributary channel, the underwater overflowing bank thin sand and the underwater tributary bay. The suggestions of infill well, extended well position and small layer perforation are put forward.
【學(xué)位授予單位】：東北石油大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：P618.13

【參考文獻(xiàn)】

相關(guān)期刊論文 前1條

1 付志方,王煥弟,邢衛(wèi)新,胡云亭;層序地層學(xué)研究現(xiàn)狀及進(jìn)展[J];勘探地球物理進(jìn)展;2005年05期

，

本文編號(hào)：1948583