【摘要】：本文在充分調(diào)研整理研究區(qū)前人研究成果以及已有基礎(chǔ)資料的基礎(chǔ)上,對遼東灣坳陷遼西低凸起的油氣輸導(dǎo)體系進行系統(tǒng)分析,并結(jié)合區(qū)內(nèi)油氣藏的類型、分布以及形成過程,建立不同構(gòu)造區(qū)的油氣運聚成藏模式。研究區(qū)烴源條件充足,縱向上發(fā)育兩套儲蓋組合,油氣主要分布在東營組,沙河街組次之,主要發(fā)育與斷層有關(guān)的構(gòu)造油氣藏。該區(qū)斷裂廣泛發(fā)育,遼西1號、遼西2號和遼西3號三條基底大斷裂以及頻繁活動的淺層斷裂,構(gòu)成了研究區(qū)最重要的油氣輸導(dǎo)通道;區(qū)內(nèi)骨架砂體發(fā)育良好,尤其以沙一、沙二段和東二段最為突出,這些砂體總體孔滲性好,具有良好的流體輸導(dǎo)能力和儲集性能�？匕贾鲾鄬优c東營組河流相、三角洲相儲集體的有機結(jié)合,為兩側(cè)生烴凹陷中的油氣向低凸起的運移提供了有利的通道。研究表明,研究區(qū)內(nèi)每個獨立的輸導(dǎo)要素都具有良好的輸導(dǎo)性能,不同輸導(dǎo)要素的組合配置大大提高了其對油氣的輸導(dǎo)能力�？偟膩碚f,研究區(qū)輸導(dǎo)格架以斷層—砂體—不整合面-砂體-斷層-砂體的復(fù)合體系為主。走向近NE的基底大斷裂、東營組的厚層砂巖儲層以及研究區(qū)廣泛發(fā)育的不整合是形成本區(qū)最佳輸導(dǎo)體系配置的基本要素。合理的輸導(dǎo)格架為凹陷中生成的油氣在垂向和側(cè)向運移進而在淺層成藏提供了通道保障,因此使斜坡帶和凸起區(qū)形成了一大批高產(chǎn)油氣田。通過對低凸起上自北向南的JZ20-2、JZ25-1S以及SZ36-1三個主要含油氣構(gòu)造的研究表明,研究區(qū)油氣主要來源于遼中凹陷,且基本上為晚期成藏。由于構(gòu)造背景和沉積條件的差異,以及輸導(dǎo)要素配置的不同,各個油氣區(qū)形成了不同的油氣運聚成藏模式。
[Abstract]:On the basis of thorough investigation and collation of previous research results and existing basic data, this paper makes a systematic analysis of the oil and gas transport systems in the low uplift of the western Liaoning Province in the Liaodong Bay Depression, and combines the types, distribution and formation process of the oil and gas reservoirs in the area. The oil and gas migration and accumulation model of different structural areas is established. In the study area, there are sufficient hydrocarbon source conditions and two sets of reservoir cap assemblages are developed longitudinally. Oil and gas are mainly distributed in Dongying formation, followed by Shahejie formation, and mainly developed structural reservoirs related to faults. The faults of Liaoxi No. 1, No. 2 and No. 3 of Liaoxi, as well as the frequently active shallow faults, form the most important petroleum channel in the study area. The skeleton sand bodies are well developed in the area, especially in the first, second and eastern parts of the sand body. These sand bodies have good overall porosity and permeability, and have good fluid transport capacity and reservoir performance. The organic combination of the main fault of the control depression with the fluvial facies and the delta facies of Dongying formation provides a favorable channel for the migration of oil and gas to the low uplift in the hydrocarbon generating sag on both sides. The results show that each independent transport element in the study area has good transport performance, and the combination of different transport elements greatly improves its ability to transport oil and gas. Generally speaking, the main transport framework in the study area is the composite system of fault-sand body-unconformity surface-sand body-fault-sand body. The strike near the basement of NE, the thick sandstone reservoir of Dongying formation and the widespread unconformity in the study area are the basic elements to form the best transportation system configuration in this area. A reasonable transport grid provides a channel guarantee for the vertical and lateral migration of the oil and gas generated in the sag and then for the formation of shallow reservoirs. Therefore, a large number of high-yielding oil and gas fields have been formed in the slope zone and the uplift area. Through the study of three main oil-bearing structures, JZ20-2,JZ25-1S and SZ36-1, from north to south of the low uplift, it is shown that the oil and gas in the study area mainly originate from the central Liaoning sag and are basically late oil and gas accumulation. Because of the difference of tectonic background, sedimentary conditions and the configuration of transportation elements, different oil and gas migration and accumulation models have been formed in various oil and gas regions.
【學(xué)位授予單位】：中國石油大學(xué)(華東)
【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10條

1 王祥;王應(yīng)斌;呂修祥;范秋海;;渤海海域遼東灣坳陷油氣成藏條件與分布規(guī)律[J];石油與天然氣地質(zhì);2011年03期

2 孟祥宏;王多云;李樹同;趙敏;李晶;張其超;;斷層封閉性研究[J];復(fù)雜油氣藏;2011年01期

3 李濰蓮;劉震;劉俊榜;夏慶龍;周心懷;;遼東灣地區(qū)遼西低凸起油氣田成藏地質(zhì)條件的差異[J];石油與天然氣地質(zhì);2010年05期

4 臧明峰;吳孔友;崔永謙;杜維良;;冀中坳陷潛山油氣藏輸導(dǎo)體系及運移方式[J];特種油氣藏;2009年06期

5 武芳芳;朱光有;張水昌;金強;韓劍發(fā);張斌;;塔里木盆地油氣輸導(dǎo)體系及對油氣成藏的控制作用[J];石油學(xué)報;2009年03期

6 陳歡慶;朱筱敏;張琴;張喜林;張亞雄;李燁;;輸導(dǎo)體系研究進展[J];地質(zhì)論評;2009年02期

7 徐田武;曾濺輝;魏剛;馬中良;孔旭;;遼東灣地區(qū)油氣運移輸導(dǎo)體系特征及意義[J];西南石油大學(xué)學(xué)報(自然科學(xué)版);2008年05期

8 呂延防;沙子萱;付曉飛;付廣;;斷層垂向封閉性定量評價方法及其應(yīng)用[J];石油學(xué)報;2007年05期

9 王永詩;郝雪峰;;濟陽斷陷湖盆輸導(dǎo)體系研究與實踐[J];成都理工大學(xué)學(xué)報(自然科學(xué)版);2007年04期

10 何登發(fā);;不整合面的結(jié)構(gòu)與油氣聚集[J];石油勘探與開發(fā);2007年02期

相關(guān)博士學(xué)位論文 前2條

1 龔德瑜;遼中凹陷油氣成藏規(guī)律研究[D];成都理工大學(xué);2012年

2 張成;渤中地區(qū)典型構(gòu)造油氣運移輸導(dǎo)通道及其成藏模式[D];中國地質(zhì)大學(xué);2006年

，

本文編號：2393598