發(fā)布時(shí)間：2018-02-24 04:23

  本文關(guān)鍵詞： 儲(chǔ)層預(yù)測(cè) 地震反演 元素分析 沉積微相分析　出處：《西南石油大學(xué)》2015年碩士論文　論文類(lèi)型：學(xué)位論文

【摘要】：潿洲6-8油田是南海北部灣盆地海域內(nèi)已實(shí)施開(kāi)發(fā)的海上油田,目前潿洲6-8油田已鉆探WZ6-8-1井、WZ6-8-2井、WZ6-8-3井三口探井,同時(shí)針對(duì)流一段四油組側(cè)鉆WZ6-8-A3H井、WZ6-8-A3H1兩口水平開(kāi)發(fā)井。其中2口水平井均鉆遇多個(gè)孤立巖性砂體,砂體連通性差,油層分布不連續(xù),儲(chǔ)量規(guī)模不大,與鉆前認(rèn)為的砂體、油層連續(xù)分布的認(rèn)識(shí)相差較大。因此,儲(chǔ)層的平面展布特征、橫向連通性及有利儲(chǔ)層分布區(qū)需重新認(rèn)識(shí)和評(píng)價(jià)。目前,該區(qū)鉆后儲(chǔ)層研究工作存在三大難點(diǎn)：1、儲(chǔ)層非均質(zhì)性較強(qiáng),連續(xù)性差；2、儲(chǔ)層邊界波阻抗差異較小,儲(chǔ)層邊界難以界定；3、儲(chǔ)層厚度小,砂體尖滅和泥巖隔層相間,受地震波分辨率影響明顯。 針對(duì)上述問(wèn)題,本文通過(guò)對(duì)研究區(qū)古構(gòu)造、沉積厚度、地震剖面特征分析,結(jié)合砂巖成分、重礦物等其他資料,運(yùn)用儲(chǔ)層精細(xì)對(duì)比、儲(chǔ)層非均質(zhì)性評(píng)價(jià)、儲(chǔ)層砂體預(yù)測(cè)、沉積微相分析等手段,綜合分析得出：潿洲6-8油田流一段四油組砂巖儲(chǔ)層的物源主要來(lái)自北東向兩支曲流河,本次新發(fā)現(xiàn)的南北曲流河水道在河床最深切的部位,砂巖儲(chǔ)集體富集,同時(shí)又位于T8l泥巖、頁(yè)巖及油頁(yè)巖生油層之上,水道頂部被間灣泥巖覆蓋,能形成獨(dú)立的巖性圈閉,可能蘊(yùn)藏油氣形成油氣藏,值得進(jìn)一步盤(pán)活勘探。
[Abstract]:Weizhou 6-8 oilfield is an offshore oil field that has been developed in the Beibu Gulf basin of the South China Sea. At present, Weizhou 6-8 oilfield has drilled three exploration wells of WZ6-8-1 well WZ6-8-2 well and well WZ6-8-3. At the same time, two horizontal development wells WZ6-8-A3H1 were drilled on the side of WZ6-8-A3H well in the fourth oil formation of Liu 1 formation. Among them, two horizontal wells were drilled with several isolated lithologic sand bodies, the sand body connectivity was poor, the reservoir distribution was not continuous, and the reserve scale was not large, which was similar to the sand body considered before drilling. Therefore, the horizontal distribution characteristics, lateral connectivity and favorable reservoir distribution areas need to be re-recognized and evaluated. In this area, there are three major difficulties in reservoir research after drilling: 1, strong heterogeneity of reservoir, poor continuity, small difference in wave impedance of reservoir boundary, difficulty in defining reservoir boundary, small reservoir thickness, sand body pinching and mudstone interphase, etc. It is obviously affected by the resolution of seismic wave. In view of the above problems, through the analysis of paleotectonics, sedimentary thickness, seismic profile characteristics, combined with other data such as sandstone composition, heavy minerals and so on, this paper applies fine correlation of reservoir, evaluation of reservoir heterogeneity, prediction of reservoir sand body, etc. By means of sedimentary microfacies analysis and other means, it is concluded that the source of sandstone reservoir of the fourth formation of Liu 1 formation in Weizhou 6-8 oilfield mainly comes from two meandering rivers in the NNE direction. The newly discovered north-south meandering river channel is in the deepest part of the riverbed. The sandstone reservoir is enriched and located on T8l mudstone, shale and oil shale source rocks, and the top of the channel is covered by interbay mudstone, which can form an independent lithologic trap and may contain oil and gas to form oil and gas reservoirs, which is worthy of further exploration.
【學(xué)位授予單位】：西南石油大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類(lèi)號(hào)】：P618.13

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 齊虹;許輝群;;地震屬性及其在儲(chǔ)層預(yù)測(cè)中的應(yīng)用[J];內(nèi)蒙古石油化工;2008年09期

2 徐濤玉;石學(xué)法;王國(guó)慶;喬淑卿;楊剛;劉升發(fā);王旭晨;趙泉鴻;;Sedimentary facies of the subaqueous Changjiang River delta since the late Pleistocene[J];Chinese Journal of Oceanology and Limnology;2013年05期

3 宗永強(qiáng);;韓江三角洲第四系沉積旋回[J];熱帶地理;1987年02期

4 巢華慶,許運(yùn)新;大慶油田持續(xù)穩(wěn)產(chǎn)的開(kāi)發(fā)技術(shù)[J];石油勘探與開(kāi)發(fā);1997年01期

5 徐英霞,高喜龍,楊鵬飛,黃詠梅;埕島油田館陶組上段油藏地質(zhì)模型[J];石油勘探與開(kāi)發(fā);2000年06期

6 付金華,王懷廠(chǎng),魏新善,秦伯平;榆林大型氣田石英砂巖儲(chǔ)集層特征及成因[J];石油勘探與開(kāi)發(fā);2005年01期

7 張學(xué)芳,董月昌,慎國(guó)強(qiáng),李東波,張春;曲線(xiàn)重構(gòu)技術(shù)在測(cè)井約束反演中的應(yīng)用[J];石油勘探與開(kāi)發(fā);2005年03期

8 張研;張穎;孫夕平;鄭曉東;;地震儲(chǔ)集層預(yù)測(cè)技術(shù)在不同勘探開(kāi)發(fā)階段的應(yīng)用[J];石油勘探與開(kāi)發(fā);2006年01期

9 賈愛(ài)林;郭建林;何東博;;精細(xì)油藏描述技術(shù)與發(fā)展方向[J];石油勘探與開(kāi)發(fā);2007年06期

10 于建國(guó),林春明,王金鐸,郭亞,張明振;曲流河沉積亞相的地震識(shí)別方法[J];石油地球物理勘探;2003年05期

相關(guān)博士學(xué)位論文 前1條

1 余成林;葡萄花油田剩余油形成與分布研究[D];中國(guó)石油大學(xué);2009年

，

本文編號(hào)：1528859