杏八九区高效井前期利用数值模拟研究
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摘要
随着油田开发的不断深入,产量递减逐年加剧,含水率上升非常明显,多数油田在水驱开发过程中均存在层间非均质性、局部注采不完善及井间滞留等情况,使水驱后仍有大量残余油和剩余油存留于油层中,因此如何找到一种更有效的方法对这部分残余油或剩余油进行进一步的挖潜是各油田亟待解决的问题。
杏八九区在经历了一次、二次、三次采油井网加密调整后,已进入特高含水期开发阶段。本文根据杏八九区井网部署特点和井网演变趋势,详细分析油层动用状况,确定剩余油富集区,采用高效井技术先进行水驱挖潜注采不完善及断层附近等区域剩余油,然后转为三次采油开发,以实现少井高效开发的目的。
本文通过油藏数值模拟方法对杏八九区剩余油分布规律、优化高效井层系组合及射孔方法、完善高效井注采系统方案以及三次采油井网前期利用对后期注聚的影响等进行了研究。研究表明:高效井前期利用+后期注聚的最终采收率为57.43%,比无高效井聚驱最终采收率高约0.11%,增加可采储量为1.3×104t;高效井中特高含水层的补孔时机对后期聚驱采收率有一定影响,而注采调整方案对后期注聚影响甚微。因此,三次采油井网高效井的前期利用是可行的,该研究成果可为油田高效井技术的进一步研究及现场应用提供理论与技术支持。
With the deepening development of oil field, the production decline intensified year by year, water cut increased very significantly, due to interlayer heterogeneity, partial injection-production imperfection and inter-well detention in the most oil-field developments, there were still the massive residual oil and remaining oil surviving in the oil layer after the water flooding, so how to find a more effective method for further redevelopment of this part of the residual oil or remaining oil was the problem that needed to be resolved in oilfield.
Xing eighty-nine area had experienced one, two, three well pattern thickening adjustment stage, entered the Ultra-high Water cut development stage. According to the characteristic of well pattern deployment and the evolutionary trend of well pattern in Xing eight-nine area, this article analyzed the reservoir producing state earnestly, determined the remaining oil enriched zone, water flooding was firstly carried out to exploit the remaining oil by the high effective well technology, then wells used in EOR were exploited, in order to achieve the purpose of less well efficient development. The high effective well technology had obtained the widespread application in the Daqing oil field, and had made the better development progress.
This article researched distribution rules of remaining oil, optimization layer combination of high effective well and casing perforation type, improvement injection-production system of high effective well and prophase using of EOR well pattern on the effects of anaphase injecting polymer through the reservoir numerical simulation method. Results showed that the final recovery efficiency of prophase using of high effective well + EOR was 57.43 percent, higher 0.11 percent than that without prophase using of high effective well and recoverable reserves increased by 1.3×104 tons; different injection-production adjustment programs of high effective well had little effect on EOR, and re-shooting opportunity of ultra-high Water cut layers had certain effect on EOR. So prophase using of high effective well was correct and valuable, provided certain value of the technology reference for further research of high effective well in oil field and later field application.
杏八九区在经历了一次、二次、三次采油井网加密调整后,已进入特高含水期开发阶段。本文根据杏八九区井网部署特点和井网演变趋势,详细分析油层动用状况,确定剩余油富集区,采用高效井技术先进行水驱挖潜注采不完善及断层附近等区域剩余油,然后转为三次采油开发,以实现少井高效开发的目的。
本文通过油藏数值模拟方法对杏八九区剩余油分布规律、优化高效井层系组合及射孔方法、完善高效井注采系统方案以及三次采油井网前期利用对后期注聚的影响等进行了研究。研究表明:高效井前期利用+后期注聚的最终采收率为57.43%,比无高效井聚驱最终采收率高约0.11%,增加可采储量为1.3×104t;高效井中特高含水层的补孔时机对后期聚驱采收率有一定影响,而注采调整方案对后期注聚影响甚微。因此,三次采油井网高效井的前期利用是可行的,该研究成果可为油田高效井技术的进一步研究及现场应用提供理论与技术支持。
With the deepening development of oil field, the production decline intensified year by year, water cut increased very significantly, due to interlayer heterogeneity, partial injection-production imperfection and inter-well detention in the most oil-field developments, there were still the massive residual oil and remaining oil surviving in the oil layer after the water flooding, so how to find a more effective method for further redevelopment of this part of the residual oil or remaining oil was the problem that needed to be resolved in oilfield.
Xing eighty-nine area had experienced one, two, three well pattern thickening adjustment stage, entered the Ultra-high Water cut development stage. According to the characteristic of well pattern deployment and the evolutionary trend of well pattern in Xing eight-nine area, this article analyzed the reservoir producing state earnestly, determined the remaining oil enriched zone, water flooding was firstly carried out to exploit the remaining oil by the high effective well technology, then wells used in EOR were exploited, in order to achieve the purpose of less well efficient development. The high effective well technology had obtained the widespread application in the Daqing oil field, and had made the better development progress.
This article researched distribution rules of remaining oil, optimization layer combination of high effective well and casing perforation type, improvement injection-production system of high effective well and prophase using of EOR well pattern on the effects of anaphase injecting polymer through the reservoir numerical simulation method. Results showed that the final recovery efficiency of prophase using of high effective well + EOR was 57.43 percent, higher 0.11 percent than that without prophase using of high effective well and recoverable reserves increased by 1.3×104 tons; different injection-production adjustment programs of high effective well had little effect on EOR, and re-shooting opportunity of ultra-high Water cut layers had certain effect on EOR. So prophase using of high effective well was correct and valuable, provided certain value of the technology reference for further research of high effective well in oil field and later field application.
引文
[1]赵福麟.油田化学[M].山东东营:石油大学出版社,2000:171.
[2]李懂章.大庆油田之最[M].哈尔滨:黑龙江人民出版社,2006:145.
[3]胡博仲.采油技术问答[M].北京:石油工业出版社,1995:3~4.
[4]佘庆东,刘晶,由辉,等.油田开发中高效井挖潜的方法[J].国外油田工程,2000,(09):4.
[5]王秀兰,刘丽娜,鲁延春,等.储层精细研究在油田开发后期高效井部署中的应用[J].河南石油,2003,17(3):23~25.
[6]程珑,姜学明,庄学斌,等.马厂油田开发后期部署高效井的关键技术[J].断块油气田,2004,11(6):57~58.
[7]万新德,方庆,林立,等.萨尔图油田北三东注采系统调整的实践与认识[J].大庆石油地质与开发,2006,25(1):67~69.
[8]朱水桥,汪玉华,杨丽.砾岩油藏开发中后期调整布高效井技术研究及实践——以克拉玛依七、八区砾岩油藏为例[C].新疆第五届青年学术年会论文集,乌鲁木齐:新疆人民出版社,2004:20~22.
[9]张立秋.南二区东部二类油层上返层系组合优化[J].岩性油气藏,2007,19(4):116-120.
[10]周琦,姜汉桥,陈民锋.严重非均质油藏开发层系组合界限研究[J].西南石油大学学报:自然科学版,2008,30(4):93~97.
[11]邱坤态,卢玉灵,李艳欣,等.双河油田VI油组特高含水开发后期注采调整的做法及效果[J].石油地质与工程,2009,23(2):46~48.
[12]王立军,刘强,王淑红,等.高效井控制因素研究[J].科学技术与工程,2010:10(7):1760~1763.
[13] Mial A D. Reservoir heterogemetities in fluvial sandstones: Lessons from outcrop studies[J]. AAPG Bulletin, 1988, 72(6): 482~697.
[14]韩大匡.深度开发高含水油田提高采收率问题的探讨[J].石油勘探与开发,1995,22(5):47~55.
[15]王淑红,王兆刚,邢瑞华.葡北油田中高含水后期提高采收率技术适应性探讨[J].石油天然气学报,2005,27(1):241~243.
[16]白执松,董福洲.三次采油工程[M].北京:中国科学技术出版社.1997:60~79.
[17]计秉玉,李彦兴.喇萨杏油田高含水期提高采收率的主要技术对策[J].大庆石油地质与开发,2004,23(5):47~53.
[18]张英志.萨北开发区特高含水期层系井网演化趋势研究[J].大庆石油地质与开发,2006,25:4~7.
[19]郑浩,王惠芝,王世民,等.一种研究高含水期剩余油分布规律的油藏工程综合分析方法[J].中国海上油气,2010,22(1):33~36.
[20]丁朝辉.冷43块油藏剩余油分布研究[J].内蒙古石油化工,2008,(12):18-20.
[21]赵筱艳,杜春龙,任战利,等.应用地质-动态分析法预测剩余油分布[J].西北大学学报:自然科学版,2008,38(4):622~626.
[22] Shi Chengfang, Du Qinglong, Zhu Lihong, etal. Research on Remaining Oil Distribution and Further Development Methods for Different Kinds of Oil Layers in Daqing Oilfield at High Water-Cut Stage [J]. SPE 101034.
[23] Laurent Costier, Vitaly G. Mitroshkin, Hermélia Mbadinga Hayes, etal. Locating the Remaining Oil (LTRO) and Delivering Opportunities in a Mature, Declining Oil Field [J]. SPE 140636.
[24]潘举玲,黄尚军,祝杨,等.油藏数值模拟技术现状与发展趋势[J].油气地质与采收率,2002,9(4):69~71.
[25]王雨,宋考平,杨二龙,等.萨中开发区剩余油潜力与动用状况评价方法[J].大庆石油学院学报,2009,33(2):48~52.
[26]刘慧卿.油藏数值模拟方法专题[M].山东东营:石油大学出版社,2001.
[27]魏兆亮,黄尚军.高含水期油藏数值模拟技术和方法[J].西南石油大学学报,2008,30(1):103-105.
[28]韩大匡,陈钦雷,闫存章.油藏数值模拟基础[M].北京:石油工业出版社,1993.
[29]陈兆芳,张建荣,陈月明,等.油藏数值模拟自动历史拟合方法研究及应用[J].石油勘探与开发,2003,(304):82~84.
[30] Yun Ling, Xuri Huang, Xiangyu Guo, etal. Ntegration of 3D Seismic and Reservoir Simulation for Remaining Oil Exploitation in a Heavy Oil Field: A Case Study [J]. SPE 134092.
[31]牛世忠.萨尔图油藏剩余油挖潜技术研究[J].江汉石油学院学报,2004,26(S1):77~78.
[32] K. J. Weber, Hans Dronkert. Screening Criteria to Evaluate the Development Potential of Remaining Oil in Mature Fields [J]. SPE 57873.
[33]王晓丛.鄯善油田水驱剩余油分布规律[D].大庆石油学院,2009.
[34] WalterR. Permeability anisotropy in low permeability formations[C]. SPE 10810.
[35] Gatens JM, LeeW J. The effects of permeability anisotropy on the evaluation and design of hydraulic fracture treatments and well performance [C]. SPE 21501
[36] Larry W L. The origins of anisotropy[J]. Journal of Petro-leum Technology, 1988: 395~396.
[37] Ramey H J. Interference analysis for anisotropic formations a case history[J]. Journal of Petroleum Technolo-gy, 1975: 1290~1298.
[38]何建华,张树林.高含水期微观剩余油分布研究[J].石油天然气学报,2006,28(4):340~344.
[39] Ye Jigen, Li Junshi. Water Flood Regime Study of High Dip Reservoir with Narrow OilZone [J]. SPE 131998.
[40] Jiecheng Cheng, Jianguang wei, Kaoping Song, etal. Study on Remaining Oil Distribution after Polymer Injection [J]. SPE 133808.
[41]綦慧丽.大庆杏南区PI油层组剩余油分布规律研究[D].东北石油大学工程硕士论文,2009.
[42]温静.“双高期”油藏剩余油分布规律及挖潜对策[J].特种油气藏,2004,11(4):50~53.
[43]秦永辉,白钢,李秋菊,等.王102断块剩余油分布规律及挖潜方式研究[J].国外测井技术,2004,19(2):31~34.
[44]张立秋.南二区东部二类油层上返层系组合优化[J].岩性油气藏,2007,19(4):116-120.
[45]周琦,姜汉桥,陈民锋.严重非均质油藏开发层系组合界限研究[J].西南石油大学学报:自然科学版,2008,30(4):93~97.
[46]黄新文,张兴焰,朱学谦,等.文东深层低渗透多油层砂岩油田细分层系开发[J].石油勘探与开发,2003,30(1):84~86.
[47] G. J. Hirasaki. Dependence of Water flood Remaining Oil Saturation on Relative Permeability, Capillary Pressure, and Reservoir Parameters in Mixed-Wet Turbidite Sands [J]. SPE 30763.
[48] Levin Barrios Vera, Ibrahim Al-Qarshubi, Hussain Abdulla Al-Ansi. Assessing Fluid Migration and Quantifying Remaining Oil Saturation in a Mature Carbonate Reservoir: Dukhan Arab D [J]. IPTC 13503.
[49]潘举玲.油藏数值模拟中油水相对渗透率曲线处理方法[J].油气地球物理,2007,5(4):17~19.
[50] C.S. Kabir, B. Izgec. Identification and Characterization of High-Conductive Layers in Waterfloods [J]. SPE 123930.
[51]万新德,方庆,林立,等.萨尔图油田北三东注采系统调整的实践与认识[J].大庆石油地质与开发,2006,25(1):67~69.
[52]陈青,张永兴,敬国超.某油田V上油组注采调整方案[J].成都理工大学学报:自然科学版,2004,31(1):69~72.
[53]周学民,隋新光,刘瑞奇,等.喇、萨、杏油田注采系统调整的研究和探讨[J].大庆石油地质与开发,1991,10(3):1-37.
[54]邱坤态,卢玉灵,李艳欣,等.双河油田VI油组特高含水开发后期注采调整的做法及效果[J].石油地质与工程,2009,23(2):46~48.
[55]李宇征,戴亚权,靳文奇.安塞油田长6油层注采调整技术[J].海洋石油,2003,23(3):55~62.
[2]李懂章.大庆油田之最[M].哈尔滨:黑龙江人民出版社,2006:145.
[3]胡博仲.采油技术问答[M].北京:石油工业出版社,1995:3~4.
[4]佘庆东,刘晶,由辉,等.油田开发中高效井挖潜的方法[J].国外油田工程,2000,(09):4.
[5]王秀兰,刘丽娜,鲁延春,等.储层精细研究在油田开发后期高效井部署中的应用[J].河南石油,2003,17(3):23~25.
[6]程珑,姜学明,庄学斌,等.马厂油田开发后期部署高效井的关键技术[J].断块油气田,2004,11(6):57~58.
[7]万新德,方庆,林立,等.萨尔图油田北三东注采系统调整的实践与认识[J].大庆石油地质与开发,2006,25(1):67~69.
[8]朱水桥,汪玉华,杨丽.砾岩油藏开发中后期调整布高效井技术研究及实践——以克拉玛依七、八区砾岩油藏为例[C].新疆第五届青年学术年会论文集,乌鲁木齐:新疆人民出版社,2004:20~22.
[9]张立秋.南二区东部二类油层上返层系组合优化[J].岩性油气藏,2007,19(4):116-120.
[10]周琦,姜汉桥,陈民锋.严重非均质油藏开发层系组合界限研究[J].西南石油大学学报:自然科学版,2008,30(4):93~97.
[11]邱坤态,卢玉灵,李艳欣,等.双河油田VI油组特高含水开发后期注采调整的做法及效果[J].石油地质与工程,2009,23(2):46~48.
[12]王立军,刘强,王淑红,等.高效井控制因素研究[J].科学技术与工程,2010:10(7):1760~1763.
[13] Mial A D. Reservoir heterogemetities in fluvial sandstones: Lessons from outcrop studies[J]. AAPG Bulletin, 1988, 72(6): 482~697.
[14]韩大匡.深度开发高含水油田提高采收率问题的探讨[J].石油勘探与开发,1995,22(5):47~55.
[15]王淑红,王兆刚,邢瑞华.葡北油田中高含水后期提高采收率技术适应性探讨[J].石油天然气学报,2005,27(1):241~243.
[16]白执松,董福洲.三次采油工程[M].北京:中国科学技术出版社.1997:60~79.
[17]计秉玉,李彦兴.喇萨杏油田高含水期提高采收率的主要技术对策[J].大庆石油地质与开发,2004,23(5):47~53.
[18]张英志.萨北开发区特高含水期层系井网演化趋势研究[J].大庆石油地质与开发,2006,25:4~7.
[19]郑浩,王惠芝,王世民,等.一种研究高含水期剩余油分布规律的油藏工程综合分析方法[J].中国海上油气,2010,22(1):33~36.
[20]丁朝辉.冷43块油藏剩余油分布研究[J].内蒙古石油化工,2008,(12):18-20.
[21]赵筱艳,杜春龙,任战利,等.应用地质-动态分析法预测剩余油分布[J].西北大学学报:自然科学版,2008,38(4):622~626.
[22] Shi Chengfang, Du Qinglong, Zhu Lihong, etal. Research on Remaining Oil Distribution and Further Development Methods for Different Kinds of Oil Layers in Daqing Oilfield at High Water-Cut Stage [J]. SPE 101034.
[23] Laurent Costier, Vitaly G. Mitroshkin, Hermélia Mbadinga Hayes, etal. Locating the Remaining Oil (LTRO) and Delivering Opportunities in a Mature, Declining Oil Field [J]. SPE 140636.
[24]潘举玲,黄尚军,祝杨,等.油藏数值模拟技术现状与发展趋势[J].油气地质与采收率,2002,9(4):69~71.
[25]王雨,宋考平,杨二龙,等.萨中开发区剩余油潜力与动用状况评价方法[J].大庆石油学院学报,2009,33(2):48~52.
[26]刘慧卿.油藏数值模拟方法专题[M].山东东营:石油大学出版社,2001.
[27]魏兆亮,黄尚军.高含水期油藏数值模拟技术和方法[J].西南石油大学学报,2008,30(1):103-105.
[28]韩大匡,陈钦雷,闫存章.油藏数值模拟基础[M].北京:石油工业出版社,1993.
[29]陈兆芳,张建荣,陈月明,等.油藏数值模拟自动历史拟合方法研究及应用[J].石油勘探与开发,2003,(304):82~84.
[30] Yun Ling, Xuri Huang, Xiangyu Guo, etal. Ntegration of 3D Seismic and Reservoir Simulation for Remaining Oil Exploitation in a Heavy Oil Field: A Case Study [J]. SPE 134092.
[31]牛世忠.萨尔图油藏剩余油挖潜技术研究[J].江汉石油学院学报,2004,26(S1):77~78.
[32] K. J. Weber, Hans Dronkert. Screening Criteria to Evaluate the Development Potential of Remaining Oil in Mature Fields [J]. SPE 57873.
[33]王晓丛.鄯善油田水驱剩余油分布规律[D].大庆石油学院,2009.
[34] WalterR. Permeability anisotropy in low permeability formations[C]. SPE 10810.
[35] Gatens JM, LeeW J. The effects of permeability anisotropy on the evaluation and design of hydraulic fracture treatments and well performance [C]. SPE 21501
[36] Larry W L. The origins of anisotropy[J]. Journal of Petro-leum Technology, 1988: 395~396.
[37] Ramey H J. Interference analysis for anisotropic formations a case history[J]. Journal of Petroleum Technolo-gy, 1975: 1290~1298.
[38]何建华,张树林.高含水期微观剩余油分布研究[J].石油天然气学报,2006,28(4):340~344.
[39] Ye Jigen, Li Junshi. Water Flood Regime Study of High Dip Reservoir with Narrow OilZone [J]. SPE 131998.
[40] Jiecheng Cheng, Jianguang wei, Kaoping Song, etal. Study on Remaining Oil Distribution after Polymer Injection [J]. SPE 133808.
[41]綦慧丽.大庆杏南区PI油层组剩余油分布规律研究[D].东北石油大学工程硕士论文,2009.
[42]温静.“双高期”油藏剩余油分布规律及挖潜对策[J].特种油气藏,2004,11(4):50~53.
[43]秦永辉,白钢,李秋菊,等.王102断块剩余油分布规律及挖潜方式研究[J].国外测井技术,2004,19(2):31~34.
[44]张立秋.南二区东部二类油层上返层系组合优化[J].岩性油气藏,2007,19(4):116-120.
[45]周琦,姜汉桥,陈民锋.严重非均质油藏开发层系组合界限研究[J].西南石油大学学报:自然科学版,2008,30(4):93~97.
[46]黄新文,张兴焰,朱学谦,等.文东深层低渗透多油层砂岩油田细分层系开发[J].石油勘探与开发,2003,30(1):84~86.
[47] G. J. Hirasaki. Dependence of Water flood Remaining Oil Saturation on Relative Permeability, Capillary Pressure, and Reservoir Parameters in Mixed-Wet Turbidite Sands [J]. SPE 30763.
[48] Levin Barrios Vera, Ibrahim Al-Qarshubi, Hussain Abdulla Al-Ansi. Assessing Fluid Migration and Quantifying Remaining Oil Saturation in a Mature Carbonate Reservoir: Dukhan Arab D [J]. IPTC 13503.
[49]潘举玲.油藏数值模拟中油水相对渗透率曲线处理方法[J].油气地球物理,2007,5(4):17~19.
[50] C.S. Kabir, B. Izgec. Identification and Characterization of High-Conductive Layers in Waterfloods [J]. SPE 123930.
[51]万新德,方庆,林立,等.萨尔图油田北三东注采系统调整的实践与认识[J].大庆石油地质与开发,2006,25(1):67~69.
[52]陈青,张永兴,敬国超.某油田V上油组注采调整方案[J].成都理工大学学报:自然科学版,2004,31(1):69~72.
[53]周学民,隋新光,刘瑞奇,等.喇、萨、杏油田注采系统调整的研究和探讨[J].大庆石油地质与开发,1991,10(3):1-37.
[54]邱坤态,卢玉灵,李艳欣,等.双河油田VI油组特高含水开发后期注采调整的做法及效果[J].石油地质与工程,2009,23(2):46~48.
[55]李宇征,戴亚权,靳文奇.安塞油田长6油层注采调整技术[J].海洋石油,2003,23(3):55~62.