本文選題：敖南地區(qū)　切入點：扶余油層　出處：《成都理工大學(xué)》2015年碩士論文

【摘要】：敖南研究區(qū)位于松遼盆地北部大慶長垣南部,跨齊家古龍凹陷、大慶長垣、三肇凹陷、朝陽溝階地四個二級構(gòu)造帶,該區(qū)生油層為青山口組,研究目的層為扶余油層。前人針對長垣南部各個工區(qū)進行了大量研究,但對整個敖南地區(qū)的研究還缺乏認識,主要是沉積單元劃分和沉積微相展布特征需要進一步明確。就敖南地區(qū)油氣資源豐富,但對沉積微相的研究缺乏系統(tǒng)性認識,本論文對研究區(qū)開展高分辨率層序地層劃分對比和沉積微相的研究,為認識該區(qū)沉積相展布及發(fā)育情況提供了依據(jù),為油氣資源進一步勘探開發(fā)提供理論基礎(chǔ)。在調(diào)研了前人對該區(qū)的研究成果、構(gòu)造演化特征及區(qū)域沉積背景的基礎(chǔ)上,以松遼盆地北部大慶長垣南部敖南地區(qū)扶余油層為研究對象,結(jié)合地震、巖心、錄井、測井等地質(zhì)資料,以高分辨率層序地層學(xué)、測井地質(zhì)學(xué)和沉積學(xué)為指導(dǎo),對研究區(qū)扶余油層的細分對比和沉積微相劃分進行深入細致的研究,明確扶余油層沉積微相發(fā)育平面展布特征及演化規(guī)律。經(jīng)過研究,建立了以高分辨率層序為基礎(chǔ)的扶余油層井震結(jié)合細分對比思路和方法,完善了沉積微相研究方法,研究中完成了六個地震工區(qū)315口井分層對比工作,實現(xiàn)了長垣南部地區(qū)扶余油層從5分到12分整體閉合統(tǒng)一對比分層,為細分沉積微相和認識微相演化規(guī)律奠定了基礎(chǔ)。并得到以下結(jié)論:(1)研究區(qū)發(fā)育5個中期旋回界面,其中FI1、FI3、FII2底為沉積轉(zhuǎn)換面,地震剖面中連續(xù)、弱振幅;FI2、FII1底為湖泛面,地震剖面中連續(xù)、中振幅;12個超短期旋回界面,主要為巖性突變面或洪泛面。(2)研究區(qū)主要發(fā)育曲流河、三角洲前緣和三角洲平原3種沉積亞相,19種沉積微相;發(fā)育塊狀(粉砂質(zhì))泥巖、含鈣(泥質(zhì))粉砂巖、槽狀交錯層理粉砂巖、平行層理細砂巖4種沉積巖相。(3)研究區(qū)FII2和FII1時期以西北部和東北部物源為主,FI3至FI1時期西南部物源逐漸發(fā)育,以較強勢頭向北延伸,北部物源逐漸減弱,FI1時期發(fā)育了東南部物源逐漸發(fā)育�？傮w上來講,葡南西部和新肇工區(qū)以西北部物源沉積為主;葡南東部和空白區(qū)北部以東北部物源沉積為主;敖南大部分、敖9、茂興、葡351工區(qū)以西南部和南部物源為主,敖南東南部受南部及東南部物源控制。研究區(qū)屬多物源沉積體系,發(fā)育西南和西北兩大物源,局部發(fā)育東南和東北物源,呈“南強北弱”趨勢演化。(4)研究區(qū)FI和FII屬于整體持續(xù)性水進沉積體,自下而上經(jīng)歷了河流、三角洲平原、三角洲前緣亞相沉積演化過程。FII2-2至FI3-1時期屬河流相沉積,具“南曲北網(wǎng)”分布特征;在FI2-2時期,南部主要發(fā)育曲流河沉積,北部發(fā)育三角洲平原沉積,沉積水體北深南淺;到FI2-1時期,研究區(qū)主要發(fā)育三角洲平原沉積;FI1-3時期,研究區(qū)北部發(fā)育三角洲前緣沉積,南部發(fā)育三角洲平原沉積;FI1-2至FI1-1時期,研究區(qū)主要發(fā)育三角洲前緣沉積。
[Abstract]:The study area of Aonan is located in the south of Daqing Placanticline in the north of Songliao Basin. It is located in four secondary structural zones, namely, Daqing Placanticline, Sanzhao Sag and Chaoyang Gou terrace. The source bed in this area is Qingshankou formation, and the target layer is Fuyu oil layer.Many researches have been carried out in the south of the Plaganticline, but the study on the whole Aonan area is still lack of understanding, mainly because the division of sedimentary units and the characteristics of sedimentary microfacies distribution need to be further clarified.In view of the rich oil and gas resources in Aonan area, but lack of systematic understanding of sedimentary microfacies, the study of high-resolution sequence stratigraphic division and correlation and sedimentary microfacies is carried out in this paper.It provides a basis for understanding the distribution and development of sedimentary facies in this area and provides a theoretical basis for further exploration and development of oil and gas resources.On the basis of investigation of previous research results, structural evolution characteristics and regional sedimentary background, Fuyu oil layers in the southern Aonan area of Daqing Changyuan in the north of Songliao Basin are taken as the research objects, combined with earthquakes, cores and logging.Under the guidance of high-resolution sequence stratigraphy, logging geology and sedimentology, the subdivision and correlation of Fuyu oil layers and the division of sedimentary microfacies in the study area are studied in detail.The distribution characteristics and evolution law of sedimentary microfacies in Fuyu reservoir are clarified.Based on the high resolution sequence, the well earthquakes and subdivision correlation methods of Fuyu reservoir are established, and the method of sedimentary microfacies research is perfected. In the study, 315 wells in six seismic work areas have been stratified and correlated.The whole closed and unified correlation and stratification of Fuyu oil layers from 5 to 12 points in the southern area of Changyuan has been realized, which lays a foundation for subdividing sedimentary microfacies and understanding the law of microfacies evolution.The following conclusions are obtained: (1) there are five intermediate cycle interfaces developed in the study area, in which the bottom of FI1 / FI3 / FII2 is sedimentary transfer surface, the bottom of seismic profile is continuous, the bottom of weak amplitude FI2 / FII1 is a lake flooding surface, the seismic profile is continuous and medium amplitude, and there are 12 ultra-short term cyclic interfaces.There are 19 kinds of sedimentary microfacies in meandering river, delta front and delta plain, and massive (silty) mudstone with calcium (argillaceous) siltstone.In the FII2 and FII1 periods, the northwestern and northeast provenances mainly developed from FI3 to FI1, and the southwestern provenances developed gradually, and extended northward with a stronger momentum.The southeastern provenance developed in the period of FI 1.In general, the western part of southern Portugal and the Xinzhao area are mainly from the northwest; the eastern part of southern Portugal and the northern part of the blank area are mainly from the northeast; most of the Ao9, Maoxing, and Pu351 working areas are mainly from the southwest and the south.The southeastern part of Aonan is controlled by the south and southeast provenances.The study area belongs to multi-provenance sedimentary system, with two major provenances, southwest and northwest, and southeast and northeast provenances, with a trend of "strong south, strong north and weak".) the study area fi and FII belong to the whole continuous water entering sedimentary body and experience rivers from bottom to top.The sedimentary evolution process of delta front subfacies. FII2-2 to FI3-1 belongs to fluvial facies and has the characteristics of "Nanqu North net" distribution. In FI2-2 period, meandering river deposits are mainly developed in the south and delta plain deposits are developed in the north.During the period of FI2-1, the study area mainly developed delta plain sedimentary FI1-3 period, the northern part of the study area developed delta front sedimentation, and the south developed delta plain sediment from FI1-2 to FI1-1 period.The delta front deposits are mainly developed in the study area.
【學(xué)位授予單位】：成都理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：P618.13

【參考文獻】

相關(guān)期刊論文 前6條

1 倪新鋒;田景春;陳洪德;夏青松;張錦泉;竇偉坦;姚涇利;宋江海;;應(yīng)用測井資料定量識別沉積微相——以鄂爾多斯盆地姬塬-白豹地區(qū)三疊系延長組為例[J];成都理工大學(xué)學(xué)報(自然科學(xué)版);2007年01期

2 舒良樹,慕玉福,王伯長;松遼盆地含油氣地層及其構(gòu)造特征[J];地層學(xué)雜志;2003年04期

3 張爾華,宋永忠,陳樹民,金國平,邱穎;松遼盆地扶楊油層河道砂體地震識別方法[J];大慶石油地質(zhì)與開發(fā);2004年05期

4 畢海龍;李斌;聶萬才;于海濤;;地震沉積學(xué)在下石盒子組河流相層序界面識別中的應(yīng)用[J];石油地球物理勘探;2010年S1期

5 王貴文;張新培;;塔里木盆地塔中地區(qū)志留系測井沉積相研究[J];中國石油大學(xué)學(xué)報(自然科學(xué)版);2006年03期

6 吳富強,劉家鐸,胡雪,吳梁宇;經(jīng)典層序地層學(xué)與高分辨率層序地層學(xué)[J];中國海上油氣.地質(zhì);2001年03期

相關(guān)碩士學(xué)位論文 前1條

1 朱逸青;塔北輪古中平臺地區(qū)石炭系卡拉沙依組沉積相研究[D];西南石油大學(xué);2013年

，

本文編號：1701758