四川盆地龍崗地區(qū)中三疊統(tǒng)雷四~3亞段儲層特征及控制因素
發(fā)布時間：2018-07-25 11:04
【摘要】：對川東北龍崗地區(qū)中三疊統(tǒng)雷口坡組雷四3亞段儲層的研究,有助于認識受雷口坡組頂部不整合面風(fēng)化殼影響的儲層特征,并可通過對比,分析該區(qū)域不整合面對四川盆地雷口坡組頂部儲層的影響范圍與程度。根據(jù)巖心觀察與描述、薄片鑒定、陰極發(fā)光實驗、鍶同位素測試、碳氧同位素測試,結(jié)合測井與儲層物性等資料,本文論述了川東北龍崗地區(qū)雷四3亞段儲層特征及控制因素;同時,簡要探討了四川盆地其他地區(qū)雷四3亞段的儲層特征及控制因素。結(jié)果表明,川東北龍崗地區(qū)雷四3亞段儲層的巖性主要為膏溶角礫狀白云巖與顆粒白云巖,儲層物性總體較差,儲集空間主要為膏溶鑄�？�、顆粒間(內(nèi))溶孔及晶間(溶)孔,儲層控制因素主要為局限-蒸發(fā)臺地相和臺地內(nèi)局部微地貌高地顆粒巖的沉積作用、印支期構(gòu)造運動抬升后的表生巖溶作用與充填作用。在緊鄰龍崗的元壩地區(qū),雷四段儲層具有與龍崗地區(qū)相似的特征與控制因素;在川西坳陷中段與川西南地區(qū),雷四段頂部印支期不整合面巖溶作用減弱,儲層分別受控于臺地邊緣微生物礁灘相與海平面升降控制的顆粒灘相沉積作用。
[Abstract]:The study on the reservoir of the Leikoupo formation in the middle Triassic of Longgang area in northeastern Sichuan is helpful to understand the reservoir characteristics affected by the weathering crust at the top of the Leikoupo formation, and can be compared with each other. The influence range and extent of the regional unconformity on the top reservoir of the Leikoupo formation in Sichuan Basin are analyzed. On the basis of core observation and description, sheet identification, cathodoluminescence experiment, strontium isotope test, carbon and oxygen isotope test, well logging and reservoir physical properties, this paper discusses the reservoir characteristics and controlling factors of submember 3 of Lei 4 in Longgang area, northeast Sichuan. At the same time, the reservoir characteristics and controlling factors of Lei 4 3 in other areas of Sichuan Basin are briefly discussed. The results show that the lithology of the Lai4 3 submember reservoir in Longgang area, northeast Sichuan Province, is mainly composed of gypsum breccia dolomite and granular dolomite, and the reservoir physical properties are generally poor, and the reservoir space is mainly gypsum cast mold pore. The main controlling factors of intergranular and intergranular pores are the deposition of confined evaporative platform facies and local microgeomorphologic highland granulites in the platform, and the supergene karstification and filling after the uplift of the Indosinian tectonic movement. In the Yuanba area, adjacent to Longgang, the reservoir of the fourth member of Lei has similar characteristics and controlling factors as that of the area of Longgang, while in the middle section of the western Sichuan depression and southwest of Sichuan, the karstification of the Indosinian unconformity surface at the top of the fourth member of the Lei fourth member weakens. The reservoir is controlled by microorganism reef facies and granular beach facies controlled by sea level rise and fall respectively.
【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】：2017
【分類號】：P618.13
[Abstract]:The study on the reservoir of the Leikoupo formation in the middle Triassic of Longgang area in northeastern Sichuan is helpful to understand the reservoir characteristics affected by the weathering crust at the top of the Leikoupo formation, and can be compared with each other. The influence range and extent of the regional unconformity on the top reservoir of the Leikoupo formation in Sichuan Basin are analyzed. On the basis of core observation and description, sheet identification, cathodoluminescence experiment, strontium isotope test, carbon and oxygen isotope test, well logging and reservoir physical properties, this paper discusses the reservoir characteristics and controlling factors of submember 3 of Lei 4 in Longgang area, northeast Sichuan. At the same time, the reservoir characteristics and controlling factors of Lei 4 3 in other areas of Sichuan Basin are briefly discussed. The results show that the lithology of the Lai4 3 submember reservoir in Longgang area, northeast Sichuan Province, is mainly composed of gypsum breccia dolomite and granular dolomite, and the reservoir physical properties are generally poor, and the reservoir space is mainly gypsum cast mold pore. The main controlling factors of intergranular and intergranular pores are the deposition of confined evaporative platform facies and local microgeomorphologic highland granulites in the platform, and the supergene karstification and filling after the uplift of the Indosinian tectonic movement. In the Yuanba area, adjacent to Longgang, the reservoir of the fourth member of Lei has similar characteristics and controlling factors as that of the area of Longgang, while in the middle section of the western Sichuan depression and southwest of Sichuan, the karstification of the Indosinian unconformity surface at the top of the fourth member of the Lei fourth member weakens. The reservoir is controlled by microorganism reef facies and granular beach facies controlled by sea level rise and fall respectively.
【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】：2017
【分類號】：P618.13
【參考文獻】
相關(guān)期刊論文 前10條
1 龍翼;劉樹根;宋金民;孫瑋;林彤;余永強;;龍崗地區(qū)中三疊統(tǒng)雷四~3亞段儲層特征及控制因素[J];巖性油氣藏;2016年06期
2 楊克明;;四川盆地西部中三疊統(tǒng)雷口坡組烴源巖生烴潛力分析[J];石油實驗地質(zhì);2016年03期
3 李書兵;許國明;宋曉波;;川西龍門山前構(gòu)造帶彭州雷口坡組大型氣田的形成條件[J];中國石油勘探;2016年03期
4 謝剛平;;川西坳陷中三疊統(tǒng)雷口坡組四段氣藏氣源分析[J];石油實驗地質(zhì);2015年04期
5 甯o，
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