杜66塊火驅(qū)開發(fā)技術及調(diào)控對策研究
發(fā)布時間：2018-08-30 18:41
【摘要】：在全球經(jīng)濟發(fā)展的大環(huán)境下,對石油的需求量迅速增加,在大規(guī)模對常規(guī)油氣資源開采了很長時間后,人們開始對稠油資源產(chǎn)生了濃厚興趣,因為其有著雄厚的儲量,所以開發(fā)稠油油藏的技術也開始得到重視和關注。遼寧省盤錦市遼河石油勘探局曙光采油廠的杜66塊火驅(qū)井組開發(fā)區(qū)域?qū)儆诔碛屠蠀^(qū),目前已進入吞吐開發(fā)后期,存在生產(chǎn)周期高,地層壓力低,動用程度高,低產(chǎn)低能停產(chǎn)井多等問題,本區(qū)塊的平均吞吐周期是11.72,地層的平均壓力是1.29MPa,只占原始地層壓力10.8MPa的11.9%,地質(zhì)儲量按照平均單位壓降采出只有2.49%。按照原開發(fā)方式采收率僅能達到27.2%。經(jīng)過對國內(nèi)和國外的一些稠油開發(fā)方式、轉(zhuǎn)換的技術方面調(diào)查研究,以及綜合了對油藏適應性評價的基礎上,得出結(jié)論,杜66塊地質(zhì)油藏在后期開發(fā)上應該選擇火驅(qū)開發(fā)方式。本文著重介紹了遼河油田曙光采油廠杜66塊火驅(qū)開發(fā)開展情況,通過對杜66塊油藏類型和地質(zhì)特征、開發(fā)現(xiàn)狀和矛盾,以及火驅(qū)開發(fā)技術的深入研究,摸索出了動態(tài)調(diào)控規(guī)律,合理優(yōu)化了配套措施,制定了相應的調(diào)控對策:通過組合式吞吐引流模式、注采參數(shù)調(diào)整、反向火驅(qū)技術等平面火線控制技術,分層采油測氣管柱、生產(chǎn)井化學調(diào)堵、注氣井分注等縱向動用控制技術,以及優(yōu)化尾氣處理工藝、作業(yè)堵漏、優(yōu)化管柱設計等高尾氣治理手段,大大提高杜66塊稠油油藏的開發(fā)效果,并對研究結(jié)果進行應用。最終通過研究證明,增產(chǎn)效果明顯。井組產(chǎn)量持續(xù)增長,連續(xù)生產(chǎn)井日產(chǎn)油由轉(zhuǎn)驅(qū)前112.3噸上升到451.7噸,增加339.4噸;單井日產(chǎn)明顯上升,區(qū)塊單井日產(chǎn)由0.9t/d提高到2.2t/d;開井率大幅提高,試驗區(qū)17井組油井見效比例達到82%,24井組為72%;50井組為66%;開發(fā)指標明顯改善,火驅(qū)后,先導試驗井組采油速度由0.29%上升至2.2%,擴大試驗區(qū)由0.23%上升至0.82%,預計最終采收率可達到52.2%,高于標定采收率27.2%,提高采收率達25%。
[Abstract]:In the global economic development environment, the demand for oil is increasing rapidly. After a long period of large-scale exploitation of conventional oil and gas resources, people began to have a strong interest in heavy oil resources, because they have strong reserves. Therefore, the development of heavy oil reservoir technology also began to receive attention and attention. The development area of block du 66 fire drive well group in Shuguang Oil production Plant of Liaohe Petroleum Exploration Bureau of Panjin City, Liaoning Province, belongs to the old heavy oil area. It has entered the late stage of huff and puff development, with high production cycle, low formation pressure and high production degree. The average stimulation period of this block is 11.72, the average formation pressure is 1.29 MPA, which only accounts for 11.9% of the original formation pressure (10.8MPa), and the geological reserves are only 2.49% according to the average unit pressure drop. According to the original development mode, the oil recovery can only reach 27.2g. Based on the investigation and study of some heavy oil development methods, conversion technology and reservoir adaptability evaluation at home and abroad, it is concluded that the fire drive development mode should be chosen in the later development of block du 66 geological reservoir. This paper mainly introduces the development of fire drive in block du 66 of Shuguang Oil production Plant in Liaohe Oilfield. Through the deep study of reservoir type and geological characteristics of block du 66, the present situation and contradiction of development, and the development technology of fire drive, the dynamic regulation and control law is found out. The matching measures are optimized reasonably, and the corresponding control countermeasures are worked out, such as the combined huff and puff drainage mode, the adjustment of injection and production parameters, the reverse fire drive technology and other plane fire line control techniques, the stratified oil production pipe string, the chemical plugging of production wells, etc. The development effect of heavy oil reservoir in block du 66 is greatly improved by means of longitudinal production control technology, optimization of tail gas treatment technology, operation plugging, optimization of pipe string design, and application of the research results. Finally, it is proved by the research that the effect of increasing production is obvious. The daily oil production of the continuous production wells increased from 112.3 tons to 451.7 tons, which increased by 339.4 tons, the daily production per well increased obviously, the daily production per well in the block increased from 0.9t/d to 2.2 t / d, and the opening rate increased significantly. In the test area, the ratio of effective oil wells in the 17 well groups reached 82jianzhuan24 well group, 72jiao 50 well group was 66.The development index was obviously improved, and after fire flooding, The oil recovery rate of pilot test well group is increased from 0.29% to 2.2%, and the test area is expanded from 0.23% to 0.822%. It is estimated that the final recovery factor can reach 52.2%, which is higher than the calibrated recovery factor 27.2and the oil recovery rate is increased to 25.2%.
【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】：TE357.44
[Abstract]:In the global economic development environment, the demand for oil is increasing rapidly. After a long period of large-scale exploitation of conventional oil and gas resources, people began to have a strong interest in heavy oil resources, because they have strong reserves. Therefore, the development of heavy oil reservoir technology also began to receive attention and attention. The development area of block du 66 fire drive well group in Shuguang Oil production Plant of Liaohe Petroleum Exploration Bureau of Panjin City, Liaoning Province, belongs to the old heavy oil area. It has entered the late stage of huff and puff development, with high production cycle, low formation pressure and high production degree. The average stimulation period of this block is 11.72, the average formation pressure is 1.29 MPA, which only accounts for 11.9% of the original formation pressure (10.8MPa), and the geological reserves are only 2.49% according to the average unit pressure drop. According to the original development mode, the oil recovery can only reach 27.2g. Based on the investigation and study of some heavy oil development methods, conversion technology and reservoir adaptability evaluation at home and abroad, it is concluded that the fire drive development mode should be chosen in the later development of block du 66 geological reservoir. This paper mainly introduces the development of fire drive in block du 66 of Shuguang Oil production Plant in Liaohe Oilfield. Through the deep study of reservoir type and geological characteristics of block du 66, the present situation and contradiction of development, and the development technology of fire drive, the dynamic regulation and control law is found out. The matching measures are optimized reasonably, and the corresponding control countermeasures are worked out, such as the combined huff and puff drainage mode, the adjustment of injection and production parameters, the reverse fire drive technology and other plane fire line control techniques, the stratified oil production pipe string, the chemical plugging of production wells, etc. The development effect of heavy oil reservoir in block du 66 is greatly improved by means of longitudinal production control technology, optimization of tail gas treatment technology, operation plugging, optimization of pipe string design, and application of the research results. Finally, it is proved by the research that the effect of increasing production is obvious. The daily oil production of the continuous production wells increased from 112.3 tons to 451.7 tons, which increased by 339.4 tons, the daily production per well increased obviously, the daily production per well in the block increased from 0.9t/d to 2.2 t / d, and the opening rate increased significantly. In the test area, the ratio of effective oil wells in the 17 well groups reached 82jianzhuan24 well group, 72jiao 50 well group was 66.The development index was obviously improved, and after fire flooding, The oil recovery rate of pilot test well group is increased from 0.29% to 2.2%, and the test area is expanded from 0.23% to 0.822%. It is estimated that the final recovery factor can reach 52.2%, which is higher than the calibrated recovery factor 27.2and the oil recovery rate is increased to 25.2%.
【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】：TE357.44
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