發(fā)布時(shí)間：2018-03-15 21:05

  本文選題：水下分流河道　切入點(diǎn)：辮狀河三角洲　出處：《中國石油勘探》2017年02期 　論文類型：期刊論文

【摘要】：春光區(qū)塊主力生油層沙灣組的沉積相類型一直備受關(guān)注,很多學(xué)者也都做過詳細(xì)的研究與探討,但成果與認(rèn)識存在較大分歧。在野外剖面、鉆井巖心觀察描述的基礎(chǔ)上,結(jié)合巖石顏色、沉積構(gòu)造等相標(biāo)志,認(rèn)為春光區(qū)塊沙灣組為辮狀河三角洲—湖泊沉積體系;根據(jù)已鉆井測井曲線的形態(tài)特征、地震屬性值特征進(jìn)行沉積微相分析,識別并劃分出了辮狀河河道、辮狀河三角洲前緣水下分流河道沉積微相。統(tǒng)計(jì)分析沙灣組主要出油點(diǎn)巖性圈閉發(fā)育特征,發(fā)現(xiàn)辮狀河三角洲前緣水下分流河道砂體是主要的油氣儲(chǔ)集體,發(fā)育辮狀河三角洲前緣水下分流河道砂體儲(chǔ)集—側(cè)向相變封堵沉積模式。在此模式指導(dǎo)下,對研究區(qū)進(jìn)行有利勘探目標(biāo)優(yōu)選,認(rèn)為沙灣組S2砂組在研究區(qū)中西部發(fā)育的辮狀河三角洲前緣水下分流河道沉積為下一步油氣勘探的Ⅰ類目標(biāo)相帶。
[Abstract]:The types of sedimentary facies of Shawan formation, the main oil source formation in Chunguang block, have been paid close attention to, and many scholars have also done detailed research and discussion, but the results and understanding are quite different. On the basis of field profile and core observation and description, Combining the color of rocks and sedimentary structure, it is considered that Shawan formation in Chunguang block is a braided river deltaic lacustrine sedimentary system, and sedimentary microfacies are analyzed according to the morphological characteristics of well logging curves and seismic attributes. The sedimentary microfacies of braided river channel and underwater distributary channel in front of braided river delta are identified and divided. It is found that the sand body of underwater distributary channel in the front edge of braided river delta is the main reservoir of oil and gas, and the reservoir of sand body of underwater distributary channel in the front edge of braided river delta is developed. It is considered that the S 2 sand formation of Shawan formation developed in the central and western part of the study area is the first type of target facies for further oil and gas exploration, and the underwater distributary channel deposits in the front edge of braided river delta are considered as the next type of target facies for oil and gas exploration.
【作者單位】： 無錫工藝職業(yè)技術(shù)學(xué)院機(jī)電工程系;長江大學(xué)地球科學(xué)學(xué)院;中國石油新疆油田公司勘探開發(fā)研究院地球物理研究所;中國石化河南油田分公司工程咨詢有限公司;
【基金】：國家科技重大專項(xiàng)“西非重點(diǎn)區(qū)深水碎屑巖高精度層序地層研究與儲(chǔ)層精細(xì)評價(jià)”(2011ZX05030-003-001) 國家自然科學(xué)基金青年科學(xué)基金項(xiàng)目“黃驊坳陷孔南地區(qū)棗Ⅲ界面的構(gòu)造屬性及其地質(zhì)意義”(41402111)
【分類號】：P618.13

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本文編號：1616804