本文選題：疊合盆地　切入點：埃迪卡拉系　出處：《成都理工大學(xué)學(xué)報(自然科學(xué)版)》2017年03期 　論文類型：期刊論文

【摘要】：四川疊合盆地震旦系(埃迪卡拉系)燈影組是目前中國最古老的油氣產(chǎn)層,勘探歷史超過50年。其有效烴源巖主要是下寒武統(tǒng)筇竹寺組,儲集層主要為燈影組微生物白云巖與受桐灣運動影響形成的風(fēng)化殼儲集層,直接蓋層為筇竹寺組泥巖;生儲蓋組合從層位上來講主要是上(新)生下(老)儲頂蓋型,從空間分布來講主要是旁生側(cè)儲頂蓋型。其油氣成藏過程為"四中心"(生烴中心、生氣中心、儲氣中心和保氣中心)耦合,生烴中心生成的油氣運移至古構(gòu)造形成古油藏(生氣中心),古油藏內(nèi)石油深埋裂解形成古氣藏(儲氣中心),受盆地內(nèi)晚期快速隆升和盆緣造山帶影響,燈影組古氣藏內(nèi)的天然氣沿?zé)粲敖M頂不整合面再次發(fā)生長距離運移調(diào)整成藏或破壞,形成現(xiàn)今天然氣藏(保氣中心)。燈影組天然氣成藏或破壞有5種模式,即高石梯型、威遠(yuǎn)型、通南巴型、焦石壩型和丁山-林灘場型。四川疊合盆地震旦系燈影組的長期勘探和深入研究揭示出疊合盆地古老深層碳酸鹽巖油氣成藏特征是:(1)烴源巖生物類型低等化和有機質(zhì)高演化;(2)儲集層成巖強度大、演化時間長,趨于致密化,上覆負(fù)荷作用可能導(dǎo)致深層儲集層質(zhì)量變差;(3)油氣成藏過程具烴態(tài)(固、液、氣)轉(zhuǎn)變和多階段性,油氣分布具有突出的差異性和多因素聯(lián)控;(4)油氣形成和保存的關(guān)鍵因素是烴源充足、保存條件佳和構(gòu)造穩(wěn)定。
[Abstract]:The Dengying formation of the Sinian (Edikala system) in the superimposed basin of Sichuan Province is the oldest oil and gas producer in China at present and has a history of exploration for more than 50 years. Its effective source rock is mainly the Lower Cambrian Qiongzhusi formation. The reservoir is mainly composed of microbial dolomite of Dengying formation and weathered crust reservoir influenced by Tongwan movement, and the direct caprock is mudstone of Qiongzhusi formation. In terms of spatial distribution, it is mainly a side side reservoir cap type. The process of oil and gas accumulation is coupled with "four centers" (hydrocarbon generation center, gas generation center, gas storage center and gas preservation center). Oil and gas migration from hydrocarbon generation center to paleotectonics formed paleoreservoirs (gas generation center, oil deep burying and cracking in paleo-reservoir), which were influenced by rapid uplift in the late stage of basin and basin margin orogenic belt. The natural gas in the Dengying formation paleogas reservoir reoccurs long distance migration to form or destroy along the top unconformity surface of the Dengying formation, forming the present natural gas reservoir. There are five types of gas accumulation or destruction in the Dengying formation, that is, the high stone ladder type. Weiyuan type, Tongnanba type, Jiaoshiba type and Dingshan-Lintan field type. Long-term exploration and in-depth study of the Dengying formation of the Sinian system in the Sichuan superimposed basin reveals that the hydrocarbon accumulation characteristics of the ancient deep carbonate rocks in the superimposed basin are the low biotypes of the source rocks. The diagenetic strength of the reservoir is large. The evolution time is long and tends to be densified. Overloading may lead to poor quality of deep reservoir and the formation process of oil and gas has hydrocarbon state (solid, liquid, gas) transition and multi-stage. The key factors of hydrocarbon formation and preservation are sufficient hydrocarbon source, good preservation conditions and stable structure.
【作者單位】： 油氣藏地質(zhì)及開發(fā)工程國家重點實驗室(成都理工大學(xué));
【基金】：國家科技重大專項(2017ZX05005003-007) 國家重點基礎(chǔ)研究發(fā)展計劃“973”項目(2012CB214805)
【分類號】：P618.13

【相似文獻】

相關(guān)期刊論文 前10條

1 陳孝紅,王傳尚,陳立德;峽東宜昌四溪震旦系燈影組多重地層劃分[J];華南地質(zhì)與礦產(chǎn);2001年03期

2 薛耀松,唐天福,俞從流;中國南方上震旦統(tǒng)燈影組中的古喀斯特洞穴磷塊巖[J];沉積學(xué)報;1992年03期

3 劉早學(xué);張焱林;陳鐵龍;周向輝;;湘鄂西壺瓶山—走馬地區(qū)燈影組儲層特征[J];地質(zhì)通報;2012年11期

4 劉懷仁;劉明星;胡登新;付強;;川西南上震旦統(tǒng)燈影組沉積期的暴露標(biāo)志及其意義[J];巖相古地理;1991年05期

5 李勁楓;楊宏偉;;江山震旦系燈影組地質(zhì)特征分析[J];硅谷;2013年08期

6 劉懷仁 ,劉明星;川西南上震旦統(tǒng)燈影組的研究取得重要進展[J];四川地質(zhì)學(xué)報;1991年04期

7 劉新民;郭戰(zhàn)峰;付宜興;李志祥;;神農(nóng)架地區(qū)燈影組儲層成巖作用研究[J];資源環(huán)境與工程;2007年03期

8 王鵬萬;陳子p，

本文編號：1613294