歡D塊興隆臺油層精細(xì)油藏描述及二次開發(fā)研究
發(fā)布時間：2018-12-07 10:53
【摘要】：歡D塊構(gòu)造上位于遼河斷陷西部凹陷西斜坡南端上傾部位,主要開發(fā)目的層為興隆臺油層,油層埋深600~860m,含油面積3.45km2,屬于普通稠油藏的范疇,蒸汽吞吐采油具有普通稠油藏的一般開采特點(diǎn),由于受到邊底水的作用,形成了邊底水普通稠油藏的蒸汽吞吐開采特點(diǎn)。歡D塊經(jīng)歷了多年開發(fā),蒸汽吞吐開采階段已進(jìn)入落幕階段,區(qū)塊開發(fā)矛盾日益突出,吞吐后期開發(fā)效果差,轉(zhuǎn)換開發(fā)方式勢在必行。本文對歡D塊進(jìn)行了油藏精細(xì)地質(zhì)研究,從地層特征、精細(xì)構(gòu)造、沉積特征、儲層特征、油藏特征、流體性質(zhì)以及油層壓力溫度等方面進(jìn)行了分析。本文進(jìn)行了歡D塊油藏工程分析。以歡D塊興隆臺油層為目標(biāo)區(qū)塊,從動靜態(tài)資料入手,對蒸汽吞吐的油藏動用狀況、剩余油分布以及水淹狀況分布進(jìn)行了綜合評價,從平面上看,水淹主要發(fā)生在西塊和東塊,從目前水淹區(qū)的水侵形式來看,區(qū)塊水淹以管外竄槽導(dǎo)致頂水下竄為主,其次是受底水上竄。在區(qū)塊開發(fā)的中、后期,在中塊的部分邊部井出現(xiàn)邊水以“舌進(jìn)”的形式順著河道向中部推進(jìn)的現(xiàn)象。有效厚度大、原始儲量大的中部和北部區(qū)域等主力區(qū)塊,剩余儲量依然豐富;東南部邊水區(qū)域油層較薄,剩余油相對分布也較少;油藏西北部斷塊區(qū)域剩余油較豐富,有一定的開發(fā)價值。進(jìn)一步明確油藏吞吐存在的問題以及潛力。本文進(jìn)行了歡D塊二次開發(fā)可行性研究。在對稠油油藏吞吐末期轉(zhuǎn)換開發(fā)方式進(jìn)行調(diào)研的基礎(chǔ)上,根據(jù)油藏實(shí)際情況,結(jié)合目前在歡D東塊實(shí)施一注多采蒸汽驅(qū)先導(dǎo)試驗(yàn)效果分析,對SAGD、火驅(qū)及蒸汽驅(qū)等各種轉(zhuǎn)換開發(fā)方式進(jìn)行可行性研究,認(rèn)為蒸汽驅(qū)目前油藏適應(yīng)性較強(qiáng),并開展了油藏工程優(yōu)化設(shè)計(jì)研究,確定了油藏工程設(shè)計(jì)要點(diǎn)。最終確定歡D塊興隆臺油層部署70×70m反九點(diǎn)蒸汽驅(qū)開發(fā)井組共計(jì)20個。確定轉(zhuǎn)驅(qū)順序首先選擇油藏條件相對較好、井網(wǎng)完善程度較高、井況較好、地面工程工作量小的區(qū)域優(yōu)先轉(zhuǎn)驅(qū)。根據(jù)先導(dǎo)試驗(yàn)區(qū)情況逐步推廣擴(kuò)大實(shí)驗(yàn)井區(qū),預(yù)測先導(dǎo)試驗(yàn)蒸汽驅(qū)井組一年見效,蒸汽驅(qū)6年,間歇汽驅(qū)1年,熱水驅(qū)1年,累注汽量87×104t,累產(chǎn)油25.2×104t。
[Abstract]:Block Huan D is located in the southern tip of the western slope of the western depression of Liaohe fault depression. The main development target layer is Xinglongtai oil layer. The buried depth of the reservoir is 600 ~ 860m, and the oil-bearing area is 3.45km2, which belongs to the category of ordinary heavy oil reservoir. Steam huff and puff oil production has the general characteristics of heavy oil reservoir. Because of the action of the side and bottom water, the steam huff and puff characteristics of the common heavy oil reservoir with edge and bottom water are formed. Huan-D block has experienced many years of development, steam huff and puff mining stage has entered into the curtain stage, the block development contradiction is increasingly prominent, the development effect is poor in the later stage of huff and puff, it is imperative to change the development mode. In this paper, the reservoir fine geology of Huan D block is studied, and the stratigraphic characteristics, fine structure, sedimentary characteristics, reservoir characteristics, fluid properties and reservoir pressure temperature are analyzed. In this paper, reservoir engineering analysis of Huan D block is carried out. Taking the Xinglongtai reservoir of Huan D block as the target block and starting with the dynamic and static data, the production status, remaining oil distribution and waterflooding distribution of the steam huff and puff reservoir are comprehensively evaluated. From the plane point of view, the flooding occurs mainly in the west block and the eastern block. From the view of the current water invasion pattern in the flooded area, the water flooding in the block is mainly caused by the channeling channel outside the pipe, followed by the channeling on the top of the bottom water. In the middle and late stage of block development, in the middle part of the block, the edge water in the middle part of the block is pushed forward along the middle part of the channel in the form of "tongue entering". The remaining reserves are still abundant in the main blocks such as the central and northern regions with large effective thickness and large original reserves, the oil layers in the southeastern waterfront region are thin, and the relative distribution of remaining oil is relatively small. The remaining oil in the fault block area of northwestern oil reservoir is abundant and has certain development value. The problems and potential of reservoir huff and puff are further clarified. In this paper, the feasibility of secondary development of Huan D block is studied. On the basis of investigation and research on the transforming development mode of heavy oil reservoir at the end of huff and puff, according to the actual situation of the reservoir, combined with the analysis of the pilot test effect of steam drive with one injection and multiple production in Huan D East Block at present, the SAGD, is analyzed. The feasibility study of various conversion development methods, such as fire drive and steam drive, is carried out, and the adaptability of steam flooding is considered to be strong at present. The optimization design of reservoir engineering is studied, and the key points of reservoir engineering design are determined. A total of 20 units of 70 脳 70 m reverse nine-point steam drive development wells were determined in Xinglongtai reservoir of Huan D block. In order to determine the sequence of transfer, the first choice is that the reservoir condition is relatively good, the well pattern is perfect, the well condition is better, and the work load of surface engineering is small. According to the conditions of pilot test area, the experimental well area is gradually expanded, and it is predicted that the pilot test steam flooding group will be effective in one year, steam drive 6 years, intermittent steam drive 1 year, hot water flooding 1 year, cumulative steam injection 87 脳 10 4 t, cumulative oil 25.2 脳 10 4 t.
【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】：TE34;P618.13
本文編號：2367086
[Abstract]:Block Huan D is located in the southern tip of the western slope of the western depression of Liaohe fault depression. The main development target layer is Xinglongtai oil layer. The buried depth of the reservoir is 600 ~ 860m, and the oil-bearing area is 3.45km2, which belongs to the category of ordinary heavy oil reservoir. Steam huff and puff oil production has the general characteristics of heavy oil reservoir. Because of the action of the side and bottom water, the steam huff and puff characteristics of the common heavy oil reservoir with edge and bottom water are formed. Huan-D block has experienced many years of development, steam huff and puff mining stage has entered into the curtain stage, the block development contradiction is increasingly prominent, the development effect is poor in the later stage of huff and puff, it is imperative to change the development mode. In this paper, the reservoir fine geology of Huan D block is studied, and the stratigraphic characteristics, fine structure, sedimentary characteristics, reservoir characteristics, fluid properties and reservoir pressure temperature are analyzed. In this paper, reservoir engineering analysis of Huan D block is carried out. Taking the Xinglongtai reservoir of Huan D block as the target block and starting with the dynamic and static data, the production status, remaining oil distribution and waterflooding distribution of the steam huff and puff reservoir are comprehensively evaluated. From the plane point of view, the flooding occurs mainly in the west block and the eastern block. From the view of the current water invasion pattern in the flooded area, the water flooding in the block is mainly caused by the channeling channel outside the pipe, followed by the channeling on the top of the bottom water. In the middle and late stage of block development, in the middle part of the block, the edge water in the middle part of the block is pushed forward along the middle part of the channel in the form of "tongue entering". The remaining reserves are still abundant in the main blocks such as the central and northern regions with large effective thickness and large original reserves, the oil layers in the southeastern waterfront region are thin, and the relative distribution of remaining oil is relatively small. The remaining oil in the fault block area of northwestern oil reservoir is abundant and has certain development value. The problems and potential of reservoir huff and puff are further clarified. In this paper, the feasibility of secondary development of Huan D block is studied. On the basis of investigation and research on the transforming development mode of heavy oil reservoir at the end of huff and puff, according to the actual situation of the reservoir, combined with the analysis of the pilot test effect of steam drive with one injection and multiple production in Huan D East Block at present, the SAGD, is analyzed. The feasibility study of various conversion development methods, such as fire drive and steam drive, is carried out, and the adaptability of steam flooding is considered to be strong at present. The optimization design of reservoir engineering is studied, and the key points of reservoir engineering design are determined. A total of 20 units of 70 脳 70 m reverse nine-point steam drive development wells were determined in Xinglongtai reservoir of Huan D block. In order to determine the sequence of transfer, the first choice is that the reservoir condition is relatively good, the well pattern is perfect, the well condition is better, and the work load of surface engineering is small. According to the conditions of pilot test area, the experimental well area is gradually expanded, and it is predicted that the pilot test steam flooding group will be effective in one year, steam drive 6 years, intermittent steam drive 1 year, hot water flooding 1 year, cumulative steam injection 87 脳 10 4 t, cumulative oil 25.2 脳 10 4 t.
【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】：TE34;P618.13
【參考文獻(xiàn)】
相關(guān)期刊論文 前1條
1 王勝利;田世澄;蔣有蘭;;論精細(xì)油藏描述[J];特種油氣藏;2010年04期
，本文編號：2367086
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