發(fā)布時間：2018-05-28 23:20

  本文選題：一棵樹油田 + 小層劃分對比　； 參考：《東北石油大學》2015年碩士論文

【摘要】：一棵樹油田位于吉林省鎮(zhèn)賚縣境內,是1988年開發(fā)的老油田,經過近25年的開發(fā),目前油田已經進入了特高含水開發(fā)期。在開發(fā)過程中出現(xiàn)了采出程度低,采油速度小,開發(fā)效果不好等現(xiàn)象,導致這些現(xiàn)象的原因主要是分層認識不清,油層頂面構造特征認識不清,沉積環(huán)境及砂體分布規(guī)律認識不清等。本論文研究目的是通過對構造和沉積微相特征的研究,對有利區(qū)進行預測,提出擴邊井井位及小層補射孔建議,以完善井網合理性,提高控制儲量。本論文主要針對一棵樹油田薩爾圖油層和高臺子油層地層分層認識不清,油層頂界面構造認識不清,沉積環(huán)境及砂體分布認識不清等問題,應用各種井下的地質測井等資料,以層序地層學理論為指導,采用了標準層控制下相控為基礎的小層對比方法對地層進行精細的劃分與對比。用密井網測井資料及補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子油層的頂面構造圖。通過對一棵樹油田的沉積背景、相標志、等方面的研究結合研究區(qū)的資料分析,確定研究區(qū)儲層的沉積相,即一棵樹油田的薩爾圖、高臺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,分析儲層的沉積演化過程。利用一棵樹油田構造和沉積微相特征及油水分布規(guī)律結合研究區(qū)動態(tài)生產資料,對一棵樹油田進行有利區(qū)預測。通過本論文的研究工作,將一棵樹油田薩爾圖油層劃分為5個小層;將高臺子油層劃分為20個小層。落實薩爾圖油層及高臺子油層的頂面構造。在研究區(qū)范圍內識別出三種沉積微相,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、擴邊井井位建議以及小層補射孔建議。
[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.
【學位授予單位】：東北石油大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：P618.13

【參考文獻】

相關期刊論文 前1條

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

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本文編號：1948583