松遼盆地四站—朝51區(qū)塊扶余油層構(gòu)造及儲層特征研究
發(fā)布時間：2018-11-12 14:22
【摘要】：為提高油氣田開發(fā)效益,為油田下一步的勘探開發(fā)提供理論指導(dǎo),本文采用油氣地質(zhì)綜合研究方法,對四站-朝51區(qū)塊進行精細的構(gòu)造解釋和儲層預(yù)測,并對研究區(qū)的構(gòu)造及儲層特征進行了研究,搞清該區(qū)扶余油層油氣成藏主控因素,最終總結(jié)出成藏模式并預(yù)測有利圈閉。研究表明,斷層在平面上分帶性明顯,基本上可以分為中部和西部兩個條帶,走向主要是近南北向,無論是斷距規(guī)模、延伸長度以及數(shù)量上看,這類斷層為本區(qū)中淺層斷層的主體,在T2層及其以下(T2 T2 y2各層)這類斷層尤為發(fā)育。中部四站構(gòu)造區(qū)斷層較發(fā)育,該區(qū)斷層主要為正斷層,斷層走向以近南北向為主,大體呈平行狀或雁列式分布。從剖面上看,隆起頂部斷層發(fā)育,常形成地塹多級地塹、斷面交接成鹿角狀。西部朝51井區(qū)平面上主要為近南北向和東西向兩組斷層,主要表現(xiàn)為塹壘相間、“X”字型或者“Y”字型,晚期南北向斷層錯斷早期東西向斷層。四站構(gòu)造在扶余油層頂面表現(xiàn)為一個小型的洼中隆起構(gòu)造,一個被斷層切割的復(fù)雜化的不規(guī)則穹隆背斜。通過地震儲層反演,對扶余油層三個砂組的砂巖厚度和有效厚度進行了預(yù)測,結(jié)果表明研究區(qū)扶余油層各砂組的砂巖較發(fā)育,其中扶III組的砂巖分布范圍最大,扶II組的砂巖厚度和有效厚度最大,砂巖厚度最大可達35米。在構(gòu)造和砂體研究的基礎(chǔ)上,我們對研究區(qū)的斷裂對砂體的控制作用進行分析,結(jié)果表明研究區(qū)斷裂對砂體的控制作用主要表現(xiàn)在:1、斷裂交叉部位砂體較發(fā)育;2、斷裂走向改變處砂體較發(fā)育;3、斷裂的上盤相對下盤砂體更發(fā)育。搞清楚了目標(biāo)區(qū)扶余氣層的構(gòu)造特征和儲層特征,特別是主力氣層單砂體的發(fā)育特征,為開展綜合地質(zhì)與氣藏特征研究奠定基礎(chǔ),同時為開發(fā)方案設(shè)計提供盡可能可靠的基礎(chǔ)地質(zhì)資料。
[Abstract]:In order to improve the benefit of oil and gas field development and to provide theoretical guidance for the next exploration and development of oil and gas field, this paper adopts the comprehensive research method of oil and gas geology to carry out fine structural interpretation and reservoir prediction for Block Sizhou-Chao51. The structure and reservoir characteristics of the study area are studied to find out the main controlling factors of oil and gas accumulation in Fuyu reservoir and finally summarize the reservoir forming model and predict the favorable traps. The study shows that the fault has obvious zonation on the plane, which can be basically divided into two zones: central and western. The strike is mainly in the north-south direction, regardless of the scale, the extension length and the quantity of the fault. This kind of fault is the main part of the middle and shallow fault in this area, and it is especially developed in the T 2 layer and below T 2 layer (T 2 T 2y 2 layer). The faults are mainly normal faults in the four stations in the central part of China. The fault strike is mainly in the north-south direction with parallel or echelon distribution. From the section, the top fault of the uplift is developed, often forming graben? Multistage graben, cross section into antler shape. In the west of Chao51 well area, there are mainly two groups of faults in the plane, near north to south and east to west, which mainly show the interphase of graben, "X" or "Y", and the fault of the late south-north direction faults the early east-west fault. The four-station structure on the top of Fuyu reservoir is a small depression uplift structure and a complicated irregular dome anticline cut by fault. Through seismic reservoir inversion, the sandstone thickness and effective thickness of three sand formations in Fuyu reservoir are predicted. The results show that the sandstone of each sand group in Fuyu reservoir is relatively developed, and the sandstone distribution range of Fu III formation is the largest. The sandstone thickness and effective thickness of Fu II formation are the largest and the maximum sandstone thickness can reach 35 meters. Based on the study of structure and sand body, we analyze the controlling effect of fault on sand body in the study area. The results show that the controlling effect of fault on sand body in the study area is as follows: 1, the sand body in the fault cross part is relatively developed; 2, the sand body is more developed where the fault strike changes, and 3, the upper plate of the fault is more developed than the lower plate sand body. The structural and reservoir characteristics of Fuyu gas reservoir in the target area, especially the development characteristics of single sand body in the main gas reservoir, have been clarified, which will lay a foundation for the study of comprehensive geological and gas reservoir characteristics. At the same time, it provides as reliable basic geological data as possible for the development scheme design.
【學(xué)位授予單位】：東北石油大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：P618.13
本文編號：2327363
[Abstract]:In order to improve the benefit of oil and gas field development and to provide theoretical guidance for the next exploration and development of oil and gas field, this paper adopts the comprehensive research method of oil and gas geology to carry out fine structural interpretation and reservoir prediction for Block Sizhou-Chao51. The structure and reservoir characteristics of the study area are studied to find out the main controlling factors of oil and gas accumulation in Fuyu reservoir and finally summarize the reservoir forming model and predict the favorable traps. The study shows that the fault has obvious zonation on the plane, which can be basically divided into two zones: central and western. The strike is mainly in the north-south direction, regardless of the scale, the extension length and the quantity of the fault. This kind of fault is the main part of the middle and shallow fault in this area, and it is especially developed in the T 2 layer and below T 2 layer (T 2 T 2y 2 layer). The faults are mainly normal faults in the four stations in the central part of China. The fault strike is mainly in the north-south direction with parallel or echelon distribution. From the section, the top fault of the uplift is developed, often forming graben? Multistage graben, cross section into antler shape. In the west of Chao51 well area, there are mainly two groups of faults in the plane, near north to south and east to west, which mainly show the interphase of graben, "X" or "Y", and the fault of the late south-north direction faults the early east-west fault. The four-station structure on the top of Fuyu reservoir is a small depression uplift structure and a complicated irregular dome anticline cut by fault. Through seismic reservoir inversion, the sandstone thickness and effective thickness of three sand formations in Fuyu reservoir are predicted. The results show that the sandstone of each sand group in Fuyu reservoir is relatively developed, and the sandstone distribution range of Fu III formation is the largest. The sandstone thickness and effective thickness of Fu II formation are the largest and the maximum sandstone thickness can reach 35 meters. Based on the study of structure and sand body, we analyze the controlling effect of fault on sand body in the study area. The results show that the controlling effect of fault on sand body in the study area is as follows: 1, the sand body in the fault cross part is relatively developed; 2, the sand body is more developed where the fault strike changes, and 3, the upper plate of the fault is more developed than the lower plate sand body. The structural and reservoir characteristics of Fuyu gas reservoir in the target area, especially the development characteristics of single sand body in the main gas reservoir, have been clarified, which will lay a foundation for the study of comprehensive geological and gas reservoir characteristics. At the same time, it provides as reliable basic geological data as possible for the development scheme design.
【學(xué)位授予單位】：東北石油大學(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1條
1 孟鵬,劉立,高玉巧,曲希玉,孫曉明;大港灘海埕北斷階區(qū)沙河街組三段、二段近岸水下扇沉積微相特征[J];世界地質(zhì);2005年01期
，本文編號：2327363
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