發(fā)布時(shí)間：2018-07-27 21:15

【摘要】：綜合利用研究區(qū)內(nèi)豐富的巖心、錄井、測(cè)井、構(gòu)造和分析化驗(yàn)資料,依照層序地層學(xué)與應(yīng)用沉積學(xué)理論相結(jié)合的指導(dǎo)思想,通過測(cè)井曲線特征識(shí)別,將一套適用于三角洲沉積體系的地層精細(xì)劃分對(duì)比技術(shù)——“逐級(jí)標(biāo)準(zhǔn)等時(shí)界面逼近旋回對(duì)比”方法應(yīng)用于英坨地區(qū)薩爾圖油層,詳細(xì)劃分為了5個(gè)沉積時(shí)間單元,建立起全區(qū)統(tǒng)一、精細(xì)的地層格架。為摸清研究區(qū)物源方向,依照區(qū)域沉積學(xué)方法以及碎屑重礦物分析方法,分析得出了英坨地區(qū)薩爾圖油層的沉積物物源主要來(lái)自于西部同一時(shí)期的英臺(tái)水系。在建立精細(xì)地層格架、理清物源方向之后,對(duì)英坨地區(qū)沉積相展布進(jìn)行了詳細(xì)分析,提出研究區(qū)薩爾圖油層主要發(fā)育湖相、三角洲前緣亞相和前三角洲相,砂體呈西北-東南向展布,其骨干砂體主要為水下分流河道砂體,局部層位出現(xiàn)河口壩砂體,這構(gòu)成了薩爾圖油層的主要儲(chǔ)層。最后在建立地層格架、明確物源方向及研究區(qū)砂體空間展布規(guī)律的基礎(chǔ)上,充分利用油氣成藏系統(tǒng)等現(xiàn)代地質(zhì)學(xué)新觀點(diǎn)的指導(dǎo)思想,分析區(qū)內(nèi)成藏背景,對(duì)現(xiàn)有已發(fā)現(xiàn)的油氣藏特征及其分布特點(diǎn)進(jìn)行綜合研究,識(shí)別出研究區(qū)薩爾圖油層的油氣藏類型主要為構(gòu)造油藏,局部發(fā)育巖性油藏。從而預(yù)測(cè)松遼盆地南部英坨地區(qū)薩爾圖油層?xùn)|南部為有利成藏區(qū);在此區(qū)域內(nèi)預(yù)測(cè)有利區(qū)塊5塊,并以此研究成果為支撐,指導(dǎo)項(xiàng)目組部署開發(fā)井位。
[Abstract]:Based on the abundant core, logging, structural and analytical laboratory data in the study area, and in accordance with the guiding idea of combining sequence stratigraphy with applied sedimentology theory, the characteristics of logging curves are identified. A set of fine stratigraphic classification and correlation techniques suitable for delta sedimentary systems, "step by step standard isochronous interface approaching cycle correlation" method, are applied to the Saltu reservoir in Yingtuo area, and are divided into five sedimentary time units in detail. Set up the whole area unified, fine stratigraphic framework. In order to find out the direction of provenance in the study area, according to the method of regional sedimentology and clastic heavy mineral analysis, it is concluded that the sediment source of Saltu reservoir in Yingtuo area mainly comes from the Yingtai water system in the same period in the west of China. The distribution of sedimentary facies in Yingtuo area is analyzed in detail after the establishment of fine stratigraphic framework and clear source direction, and the main lacustrine facies, delta front subfacies and pre delta facies are proposed in the study area. The sand body is distributed in the northwest to southeast direction, the main sand body is the underwater distributary channel sand body, and the sand body of estuarine bar appears in the local layer, which constitutes the main reservoir of the Saltu reservoir. Finally, on the basis of establishing stratigraphic framework, defining the direction of material source and spatial distribution of sand bodies in the study area, making full use of the new ideas of modern geology, such as oil and gas accumulation system, to analyze the background of reservoir formation in this area. Based on a comprehensive study of the characteristics and distribution of existing oil and gas reservoirs, it is found that the main types of oil and gas reservoirs in Saartu reservoir are structural reservoirs and locally developed lithologic reservoirs. Thus the southeastern Saltu reservoir in Yingtuo area of southern Songliao Basin is predicted as favorable reservoir forming area and 5 favorable blocks in this area are predicted and the research results are used as the support to guide the project team to deploy the development well site.
【學(xué)位授予單位】：新疆大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：P618.13

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本文編號(hào)：2149156