本文選題：杏樹崗一~三區(qū)西部 + 薩爾圖油層組��； 參考：《東北石油大學》2017年碩士論文

【摘要】：大慶油田杏樹崗地區(qū)非主力油層已進入開發(fā)后期,為配合杏一~三區(qū)西部非主力油層三次采油規(guī)劃設計,需要對非主力油層進行精細解剖研究。而關于研究區(qū)內三角洲前緣亞相砂體沉積模式、前緣亞相儲層河道砂體與河道邊部砂體井間連通模式的研究還有所欠缺。本文利用測井資料、取心井巖心資料等多種數(shù)據,在密井網區(qū)的基礎上精細解剖不同環(huán)境與類型下的儲層,明確地下砂體空間分布規(guī)律。通過時間單元劃分與對比技術建立杏樹崗一~三區(qū)西部2567口井49個時間單元的等時地層格架。分析取心井沉積微相特征,明確研究區(qū)內共有三角洲1相、1亞相、6微相,再根據不同沉積微相類型及特征建立測井相模式。在前期工作的基礎上逐井逐層開展平面沉積微相精細識別工作,繪制了49張沉積微相圖。在明確了各個沉積時間單元沉積微相砂體的展布規(guī)律后,開展沉積環(huán)境演化規(guī)律研究工作與儲層砂體沉積模式分析工作。明確薩Ⅱ—薩Ⅲ沉積環(huán)境演化規(guī)律即整體為湖泛擴大,沉積環(huán)境由三角洲內前緣亞相向前三角洲亞相過渡,共識別出研究區(qū)內水下分流河道砂體主要有2種分布模式,水下薄層砂體主要有3種分布模式,建立研究區(qū)儲層砂體4種沉積模式。識別出井間砂體垂向疊置模式3種,平面接觸模式8種,空間匹配模式3種。在此基礎上針對非主力層內6個重點時間單元,分析砂體與井網間不同匹配模式分布規(guī)律,給出下一步注采井網調整區(qū)域。為該研究區(qū)非主力油層的進一步開發(fā)提供地質基礎。
[Abstract]:The non-main reservoirs in Xingshugang area of Daqing Oilfield have entered the late stage of development. In order to cooperate with the planning and design of the tertiary production of non-main oil reservoirs in the western part of Xingyi ~ III area, it is necessary to carry out detailed anatomical research on the non-main reservoirs. However, the study on the sedimentary model of delta front subfacies sand body and the model of well communication between channel sand body and channel edge sand body in front subfacies reservoir is still lacking. In this paper, by using logging data and core data of core wells, the reservoir under different environments and types is carefully dissected on the basis of dense well pattern, and the spatial distribution law of underground sand body is determined. The isochronous stratigraphic framework of 49 time units of 2567 wells in the west of Xingshugang area 1 ~ 3 is established by time unit division and correlation technique. Based on the analysis of sedimentary microfacies in core wells, it is clear that there are 1 and 1 subfacies and 6 microfacies in delta in the study area, and then the logging facies model is established according to different sedimentary microfacies types and characteristics. On the basis of previous work, fine identification of planar sedimentary microfacies is carried out, and 49 sedimentary microfacies diagrams are drawn. After the distribution of sedimentary microfacies sand bodies in each sedimentary time unit has been clarified, the study of sedimentary environment evolution law and the analysis of sedimentary model of reservoir sand bodies have been carried out. It is clear that the evolution law of the sedimentary environment of sa 鈪，

本文編號：2038069