本文選題：川西南部 + 雷四段　； 參考：《西南石油大學》2015年碩士論文

【摘要】：本論文以川西南部地區(qū)雷口坡組四段為研究對象,以沉積巖石學、儲層地質學等相關理論為指導,在大量相關文獻資料調研的基礎之上,結合鉆井巖心、鏡下薄片、錄井資料以及各種分析化驗資料,對研究區(qū)雷口坡組四段地層展布、沉積相和成巖作用的類型及特征、儲層特征進行了較為深入的研究,并探討了儲層發(fā)育影響因素,找出有利勘探區(qū)域。 研究表明,川西南部地區(qū)雷口坡組四段可以劃分為雷四3、雷四2、雷四1三個亞段,川西南部地區(qū)雷口坡組四段分布總體穩(wěn)定,受龍門山構造帶、康滇古陸及瀘州—開江古隆起構造抬升、地層沉積和差異剝蝕影響,研究區(qū)中部新津-彭縣-中江-成都-眉山等中心部位沉積最厚,向西北、西南、東南呈環(huán)帶狀逐漸減��；區(qū)內南部雷四2亞段、北部雷四3亞段多被剝蝕。研究區(qū)雷口坡組四段屬陸表海臺地沉積,可細分為局限臺地、開闊臺地、臺內點灘等亞相及云坪、灰云坪、灰坪、膏鹽湖等十余個微相。其中雷四3亞段臺內點灘為最有利于儲層發(fā)育的相帶,次為局限臺地云坪微相。 川西南部地區(qū)雷四段儲集性最好儲集巖為粉晶白云巖,次為顆粒白云巖。主要儲集空間以粒間溶孔為主,主要滲流空間為裂縫,儲層主要分布在邛崍-桑園場-灌口場-霧中山一帶,垂向上由3-7套儲層組成,累計厚度約10～80m,橫向連續(xù)性好。綜合含油氣綜合研究成果認為川西南部地區(qū)龍門山前高家場-霧中山、彭州-大邑等地區(qū)為雷四段最為有利的勘探區(qū)帶。
[Abstract]:In this paper, the fourth member of the Lekoupo formation in the southern part of Sichuan is taken as the research object, the relevant theories such as sedimentary petrology and reservoir geology are taken as the guidance, on the basis of a large number of related literature and data, the drilling core is combined with the thin slice under the mirror. The mud logging data and various analytical and laboratory data are used to study the distribution of strata, the types and characteristics of sedimentary facies and diagenesis, the reservoir characteristics, and the influencing factors of reservoir development in the fourth member of the Leikoupo formation in the study area. Identify favorable exploration areas. The study shows that the fourth member of the Lekoupo formation in the southern part of Sichuan can be divided into three subsections: Lei 43, Lei 42 and Lei 41. The distribution of the fourth member of the Laikoupo formation in the southern part of Sichuan is stable, and is subject to the Longmenshan structural belt. The tectonic uplift, stratigraphic deposition and differential denudation of the ancient uplift and Luzhou-Kaijiang uplift in KangDian ancient land and Luzhou-Kaijiang are the thickest in the central part of the study area, such as Xinjin-Pengxian-Zhongjiang-Chengdu-Meishan, and gradually thinned in the northwest, southwest and southeast of the study area. In the southern part of the area, submember 2 of Lei 4 and submember 3 in the north of the area were mostly denuded. The fourth member of the Leikoupo formation belongs to the continental surface platform and can be subdivided into limited platform, open platform, inner platform and more than ten microfacies, such as Yunping, Limiping, gypsum salt lake and so on. The beach in the platform is the most favorable facies zone for reservoir development, followed by the limited platform Yunping microfacies. The best reservoir rock in the southern part of West Sichuan is powdery dolomite, followed by granular dolomite. The main reservoir space is mainly intergranular solution pore, the main seepage space is fracture, the reservoir is mainly distributed in Qionglai-Sangyuanchang-Irrigation field-Foshan area, and the vertical reservoir consists of 3-7 sets of reservoirs, the accumulative thickness is about 10 ~ 80 m, and the transverse continuity is good. The comprehensive research results show that Gaojiachang-Foshan and Pengzhou-Dayi are the most favorable exploration zones in the south of Sichuan.
【學位授予單位】：西南石油大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：P618.13

【參考文獻】

相關期刊論文 前10條

1 楊長清;劉樹根;曹波;李書兵;李e，

本文編號：1978793