胜坨油田坨7块东一段稠油油藏综合开发调整研究
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摘要
伴随着东部油区的开发深入,稠油产量越来越受到重视。在诸多稠油油藏类型中,上第三系馆陶组,东营组河流相沉积浅层常规稠油油藏,因其具有埋藏浅,储层物性好,产量高,开发投资低等特点,一直作为胜利油田的主力层系或主力后备接替层投入开发。胜坨油田胜三区坨7块东一段就属于此类油藏,该块于1995年投入开发,采用天然能量生产,开发初期油井产量高,含水低,效益好。经过十余年开发后,该块综合含水达到83.5%,已步入高含水期开发,其各种开发矛盾也日益突出：一是储量动用程度偏低,平面及纵向储量动用不均衡；二是目前仍采用一套层系开发,层问矛盾突出,现有井网无法充分发挥各小层的潜力；三是仍采用天然能量开发,不能满足长期稳产的需求；四是目前该区块已进入高含水期,油井含水高,采出程度低,采收率低,需要进行开发调整优化。为了解决以上开发矛盾,此次从以下几个方面开展了研究工作：开展综合地质研究,对该块构造形态,储层发育,物性,流体性质及油藏类型进行精细描述,对储量规模进行重新评价；在地质研究的基础上,对坨7块前期开发特征,开发效果进行分析评价,找出目前制约开发效果的主要问题,为开发调整设计制定提供依据；最后确定该块综合调整思路,对开发方式,开发层系划分,井网井距及井型进行论证,并对各项开发技术参数进行了计算和优化,最终确定该块的蒸汽吞吐,冷热采结合,定向井和水平井联合布井的综合开发调整方案,并对效果进行了预测和评价。本次研究以油藏地质研究为基础,以开发层系,开发方式,井网井距及各项参数的优化为核心,系统研究了改善坨7块常规稠油油藏高含水期开发效果的技术方法,对于指导坨7块东一段及类似油藏开发,提高此类油藏的采收率具有较大的指导意义。
With the further development of the eastern oil province, Heavy oil production increasing attention. In many types of heavy oil reservoir, the Upper Tertiary Guantao, Dongying fluvial sediments of shallow conventional heavy oil reservoir, because of its shallow, with good reservoir properties, high output, low investment in the development, Shengli Oilfield has served as the main layer system or take over the main floor back into development. Shengli oilfield Sheng Tuo 7 Dongyi section Third District belong to such a reservoir, which invest in developing the block in 1995, the use of natural energy production, the early development of high yield wells, water is low, good benefits. After more than ten years after the development of the block the water cut reached 83.5%, has entered the high water phase of development, the development of its various contradictions have become increasingly prominent:First, the low level of reserves to use, flat and vertical storage use is not balanced; Second, using a layer system is still developing, the obvious contradiction between layers, the existing well network can not give full play to the potential of the small layer; third, still using natural energy development, can not meet the needs of long-term stable; fourth is present, the block has entered the high water cut, oil wells with high water content, low levels of recovery, recovery is low, adjust and optimize the need for development. To solve the above development of contradictions, the following aspects from the research work carried out:to carry out comprehensive geological study of the structural form of the block, reservoir development, physical properties, fluid properties and reservoir analysis of the type detailed description of the scale of the reserves re-evaluation; in geological studies, based on the early development of the Tuo 7 features, analysis and evaluation of development effects, to identify effects of the current major problems restricting the development, design development to provide the basis for development and adjustment; Adjustments to finalize the block thinking on the development, layer system development division, well spacing and type of the argument well, and the development of technical parameters were calculated and optimized, and ultimately determine the block cyclic steam stimulation, hot and cold mining combined, directional well, horizontal well integrated joint cloth adjustment programs well, and the effect was predicted and evaluated. In this study, research-based reservoir geology to develop a layer system, development mode, well spacing and optimized the parameters of the core system to improve the Tuo 7 conventional heavy oil reservoir effect of high water cut stage of technology development method for guiding a Tuo 7 Dongyi section and similar reservoir development, improve the recovery of such reservoirs has great significance.
With the further development of the eastern oil province, Heavy oil production increasing attention. In many types of heavy oil reservoir, the Upper Tertiary Guantao, Dongying fluvial sediments of shallow conventional heavy oil reservoir, because of its shallow, with good reservoir properties, high output, low investment in the development, Shengli Oilfield has served as the main layer system or take over the main floor back into development. Shengli oilfield Sheng Tuo 7 Dongyi section Third District belong to such a reservoir, which invest in developing the block in 1995, the use of natural energy production, the early development of high yield wells, water is low, good benefits. After more than ten years after the development of the block the water cut reached 83.5%, has entered the high water phase of development, the development of its various contradictions have become increasingly prominent:First, the low level of reserves to use, flat and vertical storage use is not balanced; Second, using a layer system is still developing, the obvious contradiction between layers, the existing well network can not give full play to the potential of the small layer; third, still using natural energy development, can not meet the needs of long-term stable; fourth is present, the block has entered the high water cut, oil wells with high water content, low levels of recovery, recovery is low, adjust and optimize the need for development. To solve the above development of contradictions, the following aspects from the research work carried out:to carry out comprehensive geological study of the structural form of the block, reservoir development, physical properties, fluid properties and reservoir analysis of the type detailed description of the scale of the reserves re-evaluation; in geological studies, based on the early development of the Tuo 7 features, analysis and evaluation of development effects, to identify effects of the current major problems restricting the development, design development to provide the basis for development and adjustment; Adjustments to finalize the block thinking on the development, layer system development division, well spacing and type of the argument well, and the development of technical parameters were calculated and optimized, and ultimately determine the block cyclic steam stimulation, hot and cold mining combined, directional well, horizontal well integrated joint cloth adjustment programs well, and the effect was predicted and evaluated. In this study, research-based reservoir geology to develop a layer system, development mode, well spacing and optimized the parameters of the core system to improve the Tuo 7 conventional heavy oil reservoir effect of high water cut stage of technology development method for guiding a Tuo 7 Dongyi section and similar reservoir development, improve the recovery of such reservoirs has great significance.
引文
[1]霍广荣,李献民,张广卿等.胜利油田稠油油藏热力开采技术[M].北京：石油工业出版,1999：5-7.
[2]才汝成,李阳,孙焕泉等.油气藏工程方法与应用[M].东营：石油大学出版社,2002：117-119.
[3]束青林.正韵律厚油层剩余油分布模式及水平井挖潜[J].油气地质与采收率,2004,11(6)：34—38.
[4]刘文章.稠油注蒸汽热采工程[M].北京：石油工业出版社,1998：65-69.
[5]刘建民,束青林,张本华等.孤岛油田河流相厚油层储层构型研究与应用[J].油气地质与采收率,2007,14(6)：1—4.
[6]束青林,张本华,毛卫荣等.孤岛油田特高含水期提高采收率技术措施及效果[J].油气地质与采收率,2009,16(5)：52-55.
[7]徐正顺,王凤兰,张善严等.喇萨杏油田特高含水期开发调整技术[J].大庆石油地质与开发,2007,28(5)：76-81.
[8]Patzek T W. Verification of a complete pore network sim—ulator of drainage and immibition[J]. SPEJ,2001,6(2):144-156.
[9]陈碧钰.油矿地质学[M].北京：石油工业出版社,1987：352-353.
[10]段昌旭,于京秋.孤岛常规稠油油藏(M).北京：石油工业出版社,1997：78-79.
[11]吴逸,万新德,孙力红等.精细地质研究成果在油田特高含水期综合调整中的应用[J].大庆石油地质与开发,2006,25(4)：29-31.
[12]周英杰.胜利油田稠油油藏水平井技术经济政策界限[J].新疆石油地质,2008,1(5)：76-78.
[13]赵辰军.利用水平井技术提高欢西油田稠油储量动用潜力研究[J].石油地质与工程,24(4)： 61-63.
[14]彭彦素.水平井技术在高渗透油藏高含水期挖潜中的应用[J].复杂油气藏,2(3)44-47.
[15]刘春泽,任香,李秀峦等.浅薄层超稠油水平井蒸汽吞吐后转换开发方式研究[J].特种油气藏,2010,17(4)：66-68.
[16]赵澄林,朱筱敏.沉积岩石学[M].北京：石油工业出版社,2001：103-105.
[17]伍友佳.油藏地质学[M].北京：石油工业出版社,2005：112-115.
[18]刘宝君,张锦泉.沉积成岩作用[M].北京：科学出版社,1992：28-31.
[19]罗蛰谭.油层物理学[M].北京：地质出版社,1985：36-39.
[20]LIU Chunze, LIU Yang, LIU Wei. Adaptability analysis on completion methods of horizontal wells in Liaohe Oilfield[J]. Oil Driling&Production Technology,2007,29(1): 15-18.
[21]Mani Vand Mohanty K K. Pore—level network modeling of three—phase capillary pressure and relative perm eability curves[J]. SPEJ,1998,3(3):79-91.
[22]张方礼,赵洪岩.辽河油田稠油油藏注蒸汽开发技术[M].北京：石油工业出版社,2007：85-89.
[23]黄春兰.稠油热采低品位难采储量综合挖潜技术研究[J].石油天然气学报,2010,31(4)： 51-52.
[24]涛平,胡靖邦.石油工程[M].北京：石油工业出版社,2000：128-135.
[25]王新海,黎洪.敏感性稠油油藏注蒸汽开采的数学模型[J].石油天然气学报.2005,27(5)：644～646.
[26]向传刚.PETREL软件在油藏数值模拟研究中的应用[J].内蒙古石油化工,2009,15(8)：8-11.
[27]杨宏伟,吕德灵,高寿涛等.油藏模型网格尺度对油藏模型精度的影响[J].石油天然气学报,2010,32(3)：325-327.
[28]韩大匡,陈钦雷,闫存章等.油藏数值模拟基础[M].北京：石油工业出版社,1993：21-27.
[29]杨小升,喻高明,刘启伟等.古城油田B124复杂断块油藏精细数值模拟[J].内蒙古石油化工,2010,11(6)：123-125.
[30]朱家欢,孙玉国.油藏数值模拟方法研究[J].石油天然气学报,2009,31(3)：260-262
[31]曹志军.油藏数值模拟法预测剩余有分布及调整挖潜措施[J].内江科技,2009,6(5)：96-97.
[32]康兴妹,赵华.油藏数值模拟技术在油藏实际开发中的应用[J].内蒙古石油化工2008,15(6)：36-38.
[33]左悦.难动用薄层稠油油藏水平井开发实践[J].特种油气藏,2005,12(6)：49-50.
[34]张建军.赵宇渊等.不同类型油藏水平井开发适应性分析[J].石油钻采工艺,2009,31(6)： 9-12.
[35]刘尚奇,许心伟.稠油油藏水平井热采应用研究[J].石油勘探与开发,1996,24(2)：65-68.
[36]邵运堂,韩红霞,郝新武等.胜利油田开发技术论文集,北京：石油工业出版社,2004：128-129.
[37]张宇煜.稠油蒸汽吞吐注采参数优化设计[J].石油天然气学报,2009,31(2)：336-338.
[38]吕爱民,姚军,武兵厂等.底水油藏水平井最优垂向位置研究[J].石油钻探技术,2007,35(1)：66-68.
[2]才汝成,李阳,孙焕泉等.油气藏工程方法与应用[M].东营：石油大学出版社,2002：117-119.
[3]束青林.正韵律厚油层剩余油分布模式及水平井挖潜[J].油气地质与采收率,2004,11(6)：34—38.
[4]刘文章.稠油注蒸汽热采工程[M].北京：石油工业出版社,1998：65-69.
[5]刘建民,束青林,张本华等.孤岛油田河流相厚油层储层构型研究与应用[J].油气地质与采收率,2007,14(6)：1—4.
[6]束青林,张本华,毛卫荣等.孤岛油田特高含水期提高采收率技术措施及效果[J].油气地质与采收率,2009,16(5)：52-55.
[7]徐正顺,王凤兰,张善严等.喇萨杏油田特高含水期开发调整技术[J].大庆石油地质与开发,2007,28(5)：76-81.
[8]Patzek T W. Verification of a complete pore network sim—ulator of drainage and immibition[J]. SPEJ,2001,6(2):144-156.
[9]陈碧钰.油矿地质学[M].北京：石油工业出版社,1987：352-353.
[10]段昌旭,于京秋.孤岛常规稠油油藏(M).北京：石油工业出版社,1997：78-79.
[11]吴逸,万新德,孙力红等.精细地质研究成果在油田特高含水期综合调整中的应用[J].大庆石油地质与开发,2006,25(4)：29-31.
[12]周英杰.胜利油田稠油油藏水平井技术经济政策界限[J].新疆石油地质,2008,1(5)：76-78.
[13]赵辰军.利用水平井技术提高欢西油田稠油储量动用潜力研究[J].石油地质与工程,24(4)： 61-63.
[14]彭彦素.水平井技术在高渗透油藏高含水期挖潜中的应用[J].复杂油气藏,2(3)44-47.
[15]刘春泽,任香,李秀峦等.浅薄层超稠油水平井蒸汽吞吐后转换开发方式研究[J].特种油气藏,2010,17(4)：66-68.
[16]赵澄林,朱筱敏.沉积岩石学[M].北京：石油工业出版社,2001：103-105.
[17]伍友佳.油藏地质学[M].北京：石油工业出版社,2005：112-115.
[18]刘宝君,张锦泉.沉积成岩作用[M].北京：科学出版社,1992：28-31.
[19]罗蛰谭.油层物理学[M].北京：地质出版社,1985：36-39.
[20]LIU Chunze, LIU Yang, LIU Wei. Adaptability analysis on completion methods of horizontal wells in Liaohe Oilfield[J]. Oil Driling&Production Technology,2007,29(1): 15-18.
[21]Mani Vand Mohanty K K. Pore—level network modeling of three—phase capillary pressure and relative perm eability curves[J]. SPEJ,1998,3(3):79-91.
[22]张方礼,赵洪岩.辽河油田稠油油藏注蒸汽开发技术[M].北京：石油工业出版社,2007：85-89.
[23]黄春兰.稠油热采低品位难采储量综合挖潜技术研究[J].石油天然气学报,2010,31(4)： 51-52.
[24]涛平,胡靖邦.石油工程[M].北京：石油工业出版社,2000：128-135.
[25]王新海,黎洪.敏感性稠油油藏注蒸汽开采的数学模型[J].石油天然气学报.2005,27(5)：644～646.
[26]向传刚.PETREL软件在油藏数值模拟研究中的应用[J].内蒙古石油化工,2009,15(8)：8-11.
[27]杨宏伟,吕德灵,高寿涛等.油藏模型网格尺度对油藏模型精度的影响[J].石油天然气学报,2010,32(3)：325-327.
[28]韩大匡,陈钦雷,闫存章等.油藏数值模拟基础[M].北京：石油工业出版社,1993：21-27.
[29]杨小升,喻高明,刘启伟等.古城油田B124复杂断块油藏精细数值模拟[J].内蒙古石油化工,2010,11(6)：123-125.
[30]朱家欢,孙玉国.油藏数值模拟方法研究[J].石油天然气学报,2009,31(3)：260-262
[31]曹志军.油藏数值模拟法预测剩余有分布及调整挖潜措施[J].内江科技,2009,6(5)：96-97.
[32]康兴妹,赵华.油藏数值模拟技术在油藏实际开发中的应用[J].内蒙古石油化工2008,15(6)：36-38.
[33]左悦.难动用薄层稠油油藏水平井开发实践[J].特种油气藏,2005,12(6)：49-50.
[34]张建军.赵宇渊等.不同类型油藏水平井开发适应性分析[J].石油钻采工艺,2009,31(6)： 9-12.
[35]刘尚奇,许心伟.稠油油藏水平井热采应用研究[J].石油勘探与开发,1996,24(2)：65-68.
[36]邵运堂,韩红霞,郝新武等.胜利油田开发技术论文集,北京：石油工业出版社,2004：128-129.
[37]张宇煜.稠油蒸汽吞吐注采参数优化设计[J].石油天然气学报,2009,31(2)：336-338.
[38]吕爱民,姚军,武兵厂等.底水油藏水平井最优垂向位置研究[J].石油钻探技术,2007,35(1)：66-68.