本文關(guān)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(xué)》2017年碩士論文　論文類型：學(xué)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(gòu)造復(fù)雜,沉積發(fā)育規(guī)律認(rèn)識(shí)不清,為了給該區(qū)天然氣深度挖掘潛力提供技術(shù)支持,本文對(duì)該地區(qū)進(jìn)行相關(guān)的沉積相研究。本文通過分析巖心、錄井、測(cè)井和地震等資料,對(duì)研究區(qū)的地層進(jìn)行了對(duì)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(gè)油層組,沙三上亞段熱河臺(tái)油層分為熱Ⅰ油層組和熱Ⅱ油層組兩個(gè)油層組。通過巖心資料、錄井資料和測(cè)井資料分析,對(duì)研究區(qū)進(jìn)行了沉積構(gòu)造研究�；诒緟^(qū)的沉積背景和沉積特征,在巖心、錄井、測(cè)井資料分析的基礎(chǔ)上,結(jié)合前人的研究,確定了研究區(qū)大凌河油層和熱河臺(tái)油層發(fā)育深水環(huán)境下重力流機(jī)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(jìn)一步將中扇亞相劃分為辮狀主溝道、辮狀溝道側(cè)緣、辮狀溝道間和前緣無水道砂微相。沉積相對(duì)儲(chǔ)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(cè)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(cè)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(hào)：1503868