本文選題：火山巖儲層 + 巖性��； 參考：《東北石油大學》2015年碩士論文

【摘要】：《王府斷陷深層營城組至火石嶺組火山巖儲層微觀特征研究》課題針對研究區(qū)深層火山巖儲層,利用化驗分析資料和礦場鉆井巖心資料,深入探討該地區(qū)火山巖儲層微觀特征,得到如下結論:王府斷陷火山巖儲層主要分布在沙河子底部和火石嶺組。研究區(qū)火山巖巖性復雜,從酸性火山巖到基性火山巖,從火山熔巖到火山碎屑巖、沉火山碎屑巖及火山碎屑沉積巖均有鉆遇。統(tǒng)計表明研究區(qū)火山巖巖性鉆遇最多的是中性火山噴出巖,其次是酸性火山噴出巖,基性火山噴出巖所占比例非常小。研究表明,研究區(qū)火山巖儲集空間可分為三大類:原生孔隙、次生孔隙和裂縫,具體又可分為原生氣孔、顆粒/晶粒間孔、礦物炸裂紋和解理縫隙、基質溶蝕孔、晶內溶蝕孔、晶間微孔、杏仁體內溶蝕孔、構造裂縫、溶蝕縫、原生收縮縫十個亞類�；鹕饺蹘r通常發(fā)育有原生氣孔、基質溶蝕孔、晶內溶蝕孔、晶內微孔隙等,對火山巖儲層物性其主要作用的是原生氣孔和基質溶蝕孔;火山碎屑巖主要儲集空間主要有粒(礫)間孔、基質溶蝕孔、斑晶溶蝕孔等;而裂縫在各種巖性均有發(fā)育。研究區(qū)影響火山巖儲層儲集空間的成巖作用類型可分為揮發(fā)分逸出、壓實壓溶作用、熔蝕作用、壓實膠結作用、交代作用、充填作用、溶蝕溶解作用、脫�；亟Y晶作用等成巖作用。不同成巖作用對火山巖儲層的影響不同,揮發(fā)份逸出、溶蝕溶解作用、脫�；亟Y晶等作用多火山巖儲層儲集能力的改善作用重大,而壓實作用、膠結作用、充填作用等則在很大程度上降低了火山巖儲層儲集能力。
[Abstract]:A study on the microscopic characteristics of volcanic reservoir in deep Yingcheng formation to Huoshiling formation in Wangfu fault depression. Aiming at the deep volcanic rock reservoir in the study area, the microscopic characteristics of volcanic rock reservoir in this area are discussed by means of laboratory analysis data and drilling core data. The conclusions are as follows: the volcanic reservoirs in Wangfu fault depression are mainly distributed in the bottom of Shahezi and the Huoshiling formation. The lithology of volcanic rocks in the study area is complex, ranging from acid volcanic rocks to basic volcanic rocks, from volcanic lava to pyroclastic rocks, submersible pyroclastic rocks and pyroclastic sedimentary rocks. Statistics show that neutral volcanic exhalation is the most common lithologic rock in the study area, followed by acid volcanic exhalation rock, and the percentage of basic volcanic exhalation rock is very small. The results show that the reservoir space of volcanic rocks in the study area can be divided into three categories: primary pore, secondary pore and fracture, and can also be divided into primary pore, particle / grain pore, mineral explosive crack and cleavage, matrix dissolution pore, and inner dissolution pore. Intergranular micropores, amygdaloid dissolution pores, structural cracks, dissolution joints, primary shrinkage joints 10 subtypes. Volcanic lava usually has primary pores, matrix dissolution pores, micropores within crystals and so on. The primary pores and matrix dissolution pores play a major role in the physical properties of volcanic reservoir. The main reservoir spaces of pyroclastic rocks are intergranular (gravel) pores, matrix dissolution pores, porphyry dissolution pores and so on, while fractures are developed in all kinds of lithology. The types of diagenesis affecting the reservoir space of volcanic reservoir in the study area can be divided into volatile escape, compaction, pressure solution, erosion, compaction and cementation, metasomatism, filling and dissolution, Devitrification recrystallization and diagenesis. The effect of different diagenesis on volcanic reservoir is different. Volatile escape, dissolution, debonding recrystallization and so on play an important role in improving the reservoir capacity of multi-volcanic rock reservoir, while compaction and cementation play an important role in improving the reservoir capacity. Filling reduces the reservoir capacity of volcanic reservoir to a great extent.
【學位授予單位】：東北石油大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：P618.13

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