本文選題：二氧化碳 + 采油技術(shù)　； 參考：《東北石油大學(xué)》2017年碩士論文

【摘要】：本文以油藏工程為理論依據(jù),以油藏?cái)?shù)值模擬為技術(shù)手段,以高尚堡104塊為研究對象,獲取了該油藏的地質(zhì)數(shù)據(jù),然后根據(jù)地質(zhì)數(shù)據(jù)進(jìn)行了分析,同時(shí)了解了目前在開發(fā)過程中采取過的措施,以及在開采過程中存在的問題,建立地質(zhì)模型,進(jìn)行單井歷史擬合。通過大數(shù)據(jù)模擬,測試了各項(xiàng)參數(shù),結(jié)合實(shí)際工作的情況,設(shè)計(jì)二氧化碳注入方案。通過對研究區(qū)塊地質(zhì)數(shù)據(jù)調(diào)研發(fā)現(xiàn),高104-5區(qū)塊的構(gòu)造呈北西-南東方向展布,主體構(gòu)造又被兩條規(guī)模較大的高柳和高北斷層切割成多個(gè)斷塊,其發(fā)育在高柳斷層上升盤,并以其為邊界的鼻狀構(gòu)造,其地層壓力和地層溫度屬正常溫壓系統(tǒng),并具有邊、底水的塊狀構(gòu)造油藏;通過數(shù)值模擬結(jié)果表明,預(yù)測期內(nèi)平均日產(chǎn)液量總體上隨二氧化碳注入量增大先增大而后略有降低,合理二氧化碳注入量為800t;預(yù)測期內(nèi)平均日產(chǎn)液量總體上隨二氧化碳注入速度增大先升高而后降低,合理二氧化碳注入速度為100t/d;預(yù)測期內(nèi)平均日產(chǎn)液量總體上隨燜井時(shí)間的延長先升高而后降低,合理燜井時(shí)間為30d;預(yù)測期內(nèi)平均日產(chǎn)液量總體上隨周期生產(chǎn)時(shí)間增加而降低,合理周期生產(chǎn)時(shí)間為180d。二氧化碳可以提高單井的采收效率,該工藝為高含水稠油水平井在開發(fā)中期,由于大量含水后,開發(fā)效率明顯降低后的非常有效的措施。為了進(jìn)一步對二氧化碳采油技術(shù)進(jìn)行全面歸納,使該技術(shù)的應(yīng)用更加簡便適用,本文對二氧化碳采油工程設(shè)計(jì)方法進(jìn)行了研究,通過各種評價(jià)和預(yù)測,對多種應(yīng)用方案加以優(yōu)選,以指導(dǎo)該技術(shù)在現(xiàn)場中的應(yīng)用。同時(shí)對二氧化碳驅(qū)油技術(shù)推廣進(jìn)行分析,認(rèn)為二氧化碳增油技術(shù)在冀東油田水平井的成功應(yīng)用,為該技術(shù)在國內(nèi)類似油田的推廣積累了理論與現(xiàn)場經(jīng)驗(yàn)。2011年項(xiàng)目組將這項(xiàng)技術(shù)成功推廣應(yīng)用于金馬油田海26區(qū)塊及沈陽采油廠的邊臺區(qū)塊、沈625塊,其中金馬油田應(yīng)用15井次,沈陽采油廠20井次,均收到了良好的增油控水效果。
[Abstract]:Taking reservoir engineering as theoretical basis, taking reservoir numerical simulation as technical means, taking Noble Fort 104 block as research object, the geological data of this reservoir are obtained, and then analyzed according to geological data. At the same time, the measures taken in the course of development and the problems existing in the process of exploitation are understood, the geological model is established, and the historical fitting of single well is carried out. Through the big data simulation, the parameters are tested, and the CO2 injection scheme is designed according to the actual working conditions. Through the investigation of geological data of the study block, it is found that the structure of Gao104-5 block is distributed in the north-southwest direction, and the main structure has been cut into several fault blocks by two large scale Gaoliu and Gao-Bei faults, which developed in the rising plate of Gaoliu fault. The nose structure with its boundary, the formation pressure and the formation temperature belong to the normal temperature pressure system, and has the edge, the bottom water block structure reservoir, through the numerical simulation results shows, The average daily liquid production increased firstly and then decreased slightly with the increase of carbon dioxide injection, and the reasonable amount of carbon dioxide injection was 800 t, and the average daily liquid yield increased first and then decreased with the increase of carbon dioxide injection rate in the predicted period. The reasonable carbon dioxide injection rate is 100 t / d; the average daily liquid production increases first and then decreases with the prolongation of the braising time, and the reasonable stew time is 30 days, and the average daily fluid production decreases with the increase of the period of production. The reasonable cycle production time is 180 days. Carbon dioxide can improve the recovery efficiency of single well. This process is a very effective measure for high water cut heavy oil horizontal well in the middle stage of development, because of a large amount of water cut, the development efficiency is obviously reduced. In order to sum up the carbon dioxide oil recovery technology and make the application of the technology more simple and applicable, this paper studies the design method of carbon dioxide oil recovery project, and through various evaluation and prediction, A variety of application schemes are selected to guide the application of the technology in the field. At the same time, the popularization of carbon dioxide flooding technology is analyzed, and the successful application of carbon dioxide oil enhancement technology in horizontal wells in Jidong Oilfield is considered. In 2011, the project team successfully applied this technology to Hai26 block of Jinma Oilfield and the Bian Tai Block of Shenyang Oil production Plant, Shen 625 blocks, of which 15 wells were applied in Jinma Oilfield. Shenyang Oil production Plant, 20 wells, all received a good effect of increasing oil and water control.
【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】：2017
【分類號】：TE357.7
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本文編號：2032759