本文關鍵詞： 遼河油田 沙三中上亞段 湖底扇 沉積相　出處：《東北石油大學》2017年碩士論文　論文類型：學位論文

【摘要】：錦31-錦146井區(qū)位于遼河坳陷西部凹陷的歡西油田南部,該區(qū)構造復雜,沉積發(fā)育規(guī)律認識不清,為了給該區(qū)天然氣深度挖掘潛力提供技術支持,本文對該地區(qū)進行相關的沉積相研究。本文通過分析巖心、錄井、測井和地震等資料,對研究區(qū)的地層進行了對比與劃分,將目的層的沙三中亞段大凌河油層劃分為大Ⅰ油層組、大Ⅱ油層組和大Ⅲ油層組三個油層組,沙三上亞段熱河臺油層分為熱Ⅰ油層組和熱Ⅱ油層組兩個油層組。通過巖心資料、錄井資料和測井資料分析,對研究區(qū)進行了沉積構造研究�；诒緟^(qū)的沉積背景和沉積特征,在巖心、錄井、測井資料分析的基礎上,結合前人的研究,確定了研究區(qū)大凌河油層和熱河臺油層發(fā)育深水環(huán)境下重力流機制形成的湖底扇沉積。本區(qū)發(fā)育的湖底扇沉積主要為中扇亞相和外扇亞相。其中,可進一步將中扇亞相劃分為辮狀主溝道、辮狀溝道側緣、辮狀溝道間和前緣無水道砂微相。沉積相對儲層的物性和含油氣性有一定影響,研究表明,辮狀主溝道和辮狀溝道側緣微相孔隙度和滲透率較高,油、氣層也主要分布在辮狀主溝道和辮狀溝道側緣微相。
[Abstract]:The Jin31-Jin146 well area is located in the south of Huanxi Oilfield in the western depression of Liaohe Depression. The structure of this area is complex and the rules of sedimentary development are not clear. In order to provide technical support for the mining potential of natural gas depth in this area, In this paper, the relevant sedimentary facies in this area are studied. By analyzing the core, logging, logging and seismic data, the strata in the study area are compared and divided. The Dalinghe reservoir in the middle part of Sha 3 in the target layer is divided into three formations: Da-I reservoir, Da-II reservoir and Da-鈪，

本文編號：1503868