肇州401区块油藏开发地质特征研究
|
摘要
本文在前人对大庆外围葡萄花油藏有关构造、沉积成藏等研究的基础上,总结了葡萄花油藏的基本地质特征及控制因素。以州401区块中已开发的芳169区块沉积微相研究为基础,通过大量的单井分析详细划分了油井产能及产水特征,并结合经典油气成藏理论探讨了控制产能高低和油水分布原因,解释了产水复杂现象。本文所做的研究工作及取得的主要成果有:
1详细分析了芳169区块130余口采油井的生产动态,综合累计产油量和关井时间等因素划分出高产井、中产井、低产井三类。沉积微相分布和高产井分布特征分析认为,研究区内连片大面积分布的远砂坝砂体储层物性好,油气富集程度高,是高产井分布的有利区域。
2芳169区块存在产大水、初期高含水、间歇出水三种类型的产水井。平面上由东西两侧向中心部位构造位置逐渐加深呈三个条带状分布,纵向上产大水的井位于区内中心部位的构造位置最低处,其他两类水井的位置也较低,不产水或较少产水的油井其构造位置相对较高。
3构造位置的高低和储层物性的好坏是控制油水分布的主要因素。整体上符合构造高位置为油,低位置为水的油水分布模式;局部邻近层位或油井之间由于较小的油气成藏动力差别,油水的分布主要受储层物性差异的控制,物性好的地方含油饱和度高,物性差的地方含油饱和度低。
4提出本区产水异常井的地质概念模型,并依据概念模型建立了理想的地质模型进行了数值模拟研究,数值模拟动态与产水异常井的产水动态具有相同的变化趋势;本文提出的概念模型很好的解释了产水异常现象,并且符合本区的地质成藏背景,可以用数值模拟的方法验证,具有较强的合理性。水体地下储层的展布空间有限,生产动态和数值模拟的结果也表明了本区不可能存在影响全区生产的大的边底水。
Based on the studied of structure, sedimentary and accumulation of Putaohua Reservoir in periphery of Daqing Oilfield, this paper concludes accumulation characters and control factors. It classifies the character of oil and water production. On the base of sedimentary facies in Fang169 District which belong to Zhou401, integrating oil and water production character and classicing hydrocarbon accumulation theory it points out that reasons of deliverability and oil/water distribution and explains the complex water production performance. This paper draws these results as below:
1 Detailed analyzing the 130 wells performance in Fang169 District, integrating cumulative oil and closed time, it's identified 3 types of oil well in the light of high, medium, low production. Sedimentary facies distribution and high production wells distribution show that big sheet distal bar sand that have a better physical property and accumulation are high production favor regions.
2 There are large water well, high water cut well in early stage and interval water production well in Fang169 District. In the plain, elevation stepwise declines from west and east to central. In the vertical, big water well is lowest, the other water well is lower and no water cut well is higher.
3 Elevation and reservoir physical property are the key factors that control oil/water distribution. It's fit to the law of "up oil, bottom water" in whole. Reservoir physical property controls the oil/water distribution in partial.
4 It propounds that the reservoir concept model of abnormal well, and processes the numerical simulation study. Numerical simulation results and abnormal well performance are uniform tendency. It applies this model can better explain the abnormal performance. And model is fit to the geology background. Underground aquifer has limited space, numerical simulation results and abnormal well performance also verify that's not exist large edge and bottom water.
1详细分析了芳169区块130余口采油井的生产动态,综合累计产油量和关井时间等因素划分出高产井、中产井、低产井三类。沉积微相分布和高产井分布特征分析认为,研究区内连片大面积分布的远砂坝砂体储层物性好,油气富集程度高,是高产井分布的有利区域。
2芳169区块存在产大水、初期高含水、间歇出水三种类型的产水井。平面上由东西两侧向中心部位构造位置逐渐加深呈三个条带状分布,纵向上产大水的井位于区内中心部位的构造位置最低处,其他两类水井的位置也较低,不产水或较少产水的油井其构造位置相对较高。
3构造位置的高低和储层物性的好坏是控制油水分布的主要因素。整体上符合构造高位置为油,低位置为水的油水分布模式;局部邻近层位或油井之间由于较小的油气成藏动力差别,油水的分布主要受储层物性差异的控制,物性好的地方含油饱和度高,物性差的地方含油饱和度低。
4提出本区产水异常井的地质概念模型,并依据概念模型建立了理想的地质模型进行了数值模拟研究,数值模拟动态与产水异常井的产水动态具有相同的变化趋势;本文提出的概念模型很好的解释了产水异常现象,并且符合本区的地质成藏背景,可以用数值模拟的方法验证,具有较强的合理性。水体地下储层的展布空间有限,生产动态和数值模拟的结果也表明了本区不可能存在影响全区生产的大的边底水。
Based on the studied of structure, sedimentary and accumulation of Putaohua Reservoir in periphery of Daqing Oilfield, this paper concludes accumulation characters and control factors. It classifies the character of oil and water production. On the base of sedimentary facies in Fang169 District which belong to Zhou401, integrating oil and water production character and classicing hydrocarbon accumulation theory it points out that reasons of deliverability and oil/water distribution and explains the complex water production performance. This paper draws these results as below:
1 Detailed analyzing the 130 wells performance in Fang169 District, integrating cumulative oil and closed time, it's identified 3 types of oil well in the light of high, medium, low production. Sedimentary facies distribution and high production wells distribution show that big sheet distal bar sand that have a better physical property and accumulation are high production favor regions.
2 There are large water well, high water cut well in early stage and interval water production well in Fang169 District. In the plain, elevation stepwise declines from west and east to central. In the vertical, big water well is lowest, the other water well is lower and no water cut well is higher.
3 Elevation and reservoir physical property are the key factors that control oil/water distribution. It's fit to the law of "up oil, bottom water" in whole. Reservoir physical property controls the oil/water distribution in partial.
4 It propounds that the reservoir concept model of abnormal well, and processes the numerical simulation study. Numerical simulation results and abnormal well performance are uniform tendency. It applies this model can better explain the abnormal performance. And model is fit to the geology background. Underground aquifer has limited space, numerical simulation results and abnormal well performance also verify that's not exist large edge and bottom water.
引文
[1]赵文智,胡永乐,罗凯.边际油田开发技术现状、挑战与对策[J].石油勘探与开发,2006,33(4):393-398.
[2]胡淑娟,等编泽.边际油田开发战略的重要性和技术的挑战性[J].国外油田工程,2000,42-46.
[3]王玉普,计秉玉,郭万奎.大庆外围特低渗透特低丰度油田开发技术研究[J].石油学报,2006,27(6):70-74.
[4]曾大乾,李淑贞.中国低渗透砂岩储层类型及地质特征[J].石油学报,1994,15(1):38-45.
[5]王永卓,王春瑞,万心一.大庆外围低渗透油田探井与开发井之间产能关系探讨[J].大庆石油地质与开发,1999,18(5):2-4.
[6]巢华庆.大庆低渗透油田开发技术与实践[J].大庆石油地质与开发,2000,19(5):1-3.
[7]赵翰卿,付志国,吕晓光,等.大型河流-三角洲沉积储层精细描述方法[J].石油学报,2000,21(4):109-113.
[8]李道品.低渗透油田开发概论[J].大庆石油地质与开发,1997,16(3):33-37.
[9]李道品.低渗透油田高效开发决策论[M].北京:石油工业出版社,2003.
[10]张英芝、杨铁军、王文昌,等.特低渗透油藏开发技术研究[M].北京:石油工业出版社,2004.
[11]李海燕,彭仕宓.苏里格气田低渗透储层成岩储集相特征[J].石油学报,2007,28(3):100-104.
[12]王道富,李忠兴,赵继勇等.低渗透油藏超前注水理论及其应用[J].石油学报,2007,28(6):78-86.
[13]大庆油田石油地质志编写组.中国石油地质志卷二——大庆油田[M].北京:石油工业出版社,1993.
[14]高瑞祺,蔡希源.松辽盆地油气田形成条件与分布规律[M].北京:石油工业出版社,1997.
[15]李军辉.芳葡96-44井区石油地质综合研究[D].大庆:大庆石油学院,2007.
[16]刘宗堡.宋芳屯凹坡带葡萄花油层油气成藏模式及有力区块预测[D].大庆:大庆石油学院,2007.
[17]Parke A.Dickey.Petroleum Development Geology(Third Edition)[M],PennWell Publishing Company,Tulsa,Oklahoma USA,1986.
[18]李阳,刘建民.油藏开发地质学[M].北京:石油工业出版社,2007.
[19]计乘玉,梁文福.建立油田开发地质学应用分支的构想[J].石油勘探与开发,2006,33(5):606-608.
[20]裘亦楠.石油开发地质方法论(一)[J].石油勘探与开发,1996,23(2):43-47.
[21]裘亦楠.石油开发地质方法论(二)[J].石油勘探与开发,1996,23(3):48-51.
[22]裘亦楠.石油开发地质方法论(二)[J].石油勘探与开发,1996,23(4):42-45.
[23]裘怿楠,贾爱林.储层地质模型10年[J].石油学报,2000,21(4):101-104.
[24]Elise B.Bekele,Mark A.Person,Benjamin J.Rostron,et al.Modeling secondary oil migration with core-scale data:Viking Formation,Alberta basin[J].AAPG,86(1):55-74.
[25]Van De Graft,Ealey.1989.Geological Modeling for Simulation Studies[J].AAPG,73(11):835-856.
[26]Harris D G.The Role of fluid in Reservoir Simulation Studies,Reservoir Characterization-1[M].SPE Reprint Series No.27,1989.
[27]Bliefnick D and Kaldi J G.1996.Pore Geometry:Control on Reservoir Properties,Walker Creek Field,Columbia and Lafayette Counties,Arkansas[J].AAPG,80(7):1027-1044.
[28]Arthur Sailer,Brian Ball,Steve Robertson,et al.Reservoir characteristics of Devonian cherts and their control on oil recovery:Dollarhide field,west Texas[J].AAPG Bulletin,85(1):35-50
[29]金毓孙,等.陆相油藏开发论[M].北京:石油工业出版社,2006.
[30]王寿庆,许先华,何祖荣,等.对三肇凹陷葡萄花油层油藏的再认识[J].石油勘探与开发,2003,(30)6:48-50.
[31]陈立官.油气测井地质[M].成都:成都科技大学出版社,1990.
[32]王允诚.油气储层评价[M].北京:石油工业出版社,1999.
[33]Rob L.Allen.Using Deltaic Models and trophysics of Shales to Find More Permeable Areas in Fields Near the Rockies[R].SPE 23586,2000.
[34]宋子齐,白振强,陈荣环等.陕北斜坡东部低渗透储集层的有利沉积相带[J].新疆石油地质,2004,25(6):588-591.
[35]王友净,林承焰,董春梅,等.乐安油田草4块沙四段储层沉积特征与非均质性研究[J].中国石油大学学报(自然科学版),2007,31(3):7-12.
[36]赵应成,王天琦,田光荣,等.低渗透油田富集区预测技术研究——以松辽盆地扶杨油层为例[J],岩性油气藏,2007,19(1):21-26.
[37]刘勇,金晓辉,孙冬胜.直罗油田储层孔隙结构及对油水分布的控制作用[J].西安石油学院学报,1996,11(3):12-15.
[38]林承焰,谭丽娟,于翠玲.论油气分布的不均一性(Ⅰ)——非均质控油理论的由来[J].岩性油气藏,2007,19(2):16-21.
[39]林承焰,谭丽娟,于翠玲.论油气分布的不均一性(Ⅰ)——非均质控油理论的探讨[J].岩性油气藏,2007,19(3):14-22.
[40]王建民,周卓明.顺宁油田低渗透砂岩储层沉积特征与控油因素[J].石油与天然气地质,2001,22(2):146-149.
[41]何顺利,郑祥克,魏俊之.沉积微相对单井产能的控制作用[J].石油勘探与开发,2002,29(4):72-73.
[42]朱玉双,孙卫,梁小伟,等.丘陵油田陵二西区三间房组油藏注水开发动态特征[J].石油勘探与开发,2004,31(4):116-119.
[43]赵国瑜,宫伟.安塞特低渗油田注水开发效果分析[J].油气采收率技术,1999,6(4):23-28.
[44]金之钧,张一伟,王捷,等.油气成藏机理与分布规律[M].北京:石油工业出版社,2003.
[45]李明诚.石油与天然气运移[M].北京:石油工业出版社,2004.
[46]邱楠生,万晓龙,金之钧等.渗透率级差对透镜状砂体成藏的控制模式[J].石油勘探与开发,2003,30(3):48-51.
[47]曾溅辉,张善文,邱楠生,等.济阳坳陷砂岩透镜体油气藏充满度大小及其主控因素[J].地球科学:中国地质大学学报,2002,27(6):729-732.
[48]计秉玉,战剑飞,苏致新.油井见效时间和见水时间计算公式[J].大庆石油地质与开发,2000,19(5):24-26.
[49]王允诚.油层物理学[M].北京:石油工业出版社,1993.
[50]李兴国.油层微型构造对油井生产的控制作用——以胜坨、孤岛油田为例fJ].石油勘探与开发,1987,2(2),53-59.
[51]李兴国.对微型构造的点滴新认识[J].石油勘探与开发,1995,22(1):64-67.
[52]李杰,隋新光,吴艳菊,等.萨中葡Ⅰ组储层微型构造及其应用[J].大庆石油学院学报,2003,27(1):10-12.
[53]方锡贤,熊玉芹,吉玉香.焉耆盆地低含水油层产生原因及解释方法探讨.大庆石油地质与开发,2007,26(1):61-64.
[54]王庆.大庆油田芳169区块储层分布研究[R].中国华油集团肇州分公司(内部资料),2007.
[55]周继德,陈庭军.油井提液后水量的预测[J].石油钻采工艺,1993,15(3):28-29.
[56]叶鹏,盛国富,王修利,等.多油层油藏渗流理论在油井参数优选中的应用[J].大庆石油地质与开发,2005,24(8):31-32.
[57]唐仁选,谈士海,郎春艳.多油层合采的油井产液及含水特征分析[J].中国海上油气地质,2003,17(2):118-122.
[58]陶国秀.储层非均质性所形成的非常规油藏[J].河南石油,2005,19(5):4-6.
[59]张小莉,查明,王鹏.单砂体高部位油水倒置分布的成因机制[J].沉积学报,2006,24(1):148-152.
[60]张锐锋,党振荣,王健,等.含水油藏的形成、评价和勘探——关于一种可能的新油藏类型的探索[J].石油与大然气地质,2004,25(5):570-576.
[2]胡淑娟,等编泽.边际油田开发战略的重要性和技术的挑战性[J].国外油田工程,2000,42-46.
[3]王玉普,计秉玉,郭万奎.大庆外围特低渗透特低丰度油田开发技术研究[J].石油学报,2006,27(6):70-74.
[4]曾大乾,李淑贞.中国低渗透砂岩储层类型及地质特征[J].石油学报,1994,15(1):38-45.
[5]王永卓,王春瑞,万心一.大庆外围低渗透油田探井与开发井之间产能关系探讨[J].大庆石油地质与开发,1999,18(5):2-4.
[6]巢华庆.大庆低渗透油田开发技术与实践[J].大庆石油地质与开发,2000,19(5):1-3.
[7]赵翰卿,付志国,吕晓光,等.大型河流-三角洲沉积储层精细描述方法[J].石油学报,2000,21(4):109-113.
[8]李道品.低渗透油田开发概论[J].大庆石油地质与开发,1997,16(3):33-37.
[9]李道品.低渗透油田高效开发决策论[M].北京:石油工业出版社,2003.
[10]张英芝、杨铁军、王文昌,等.特低渗透油藏开发技术研究[M].北京:石油工业出版社,2004.
[11]李海燕,彭仕宓.苏里格气田低渗透储层成岩储集相特征[J].石油学报,2007,28(3):100-104.
[12]王道富,李忠兴,赵继勇等.低渗透油藏超前注水理论及其应用[J].石油学报,2007,28(6):78-86.
[13]大庆油田石油地质志编写组.中国石油地质志卷二——大庆油田[M].北京:石油工业出版社,1993.
[14]高瑞祺,蔡希源.松辽盆地油气田形成条件与分布规律[M].北京:石油工业出版社,1997.
[15]李军辉.芳葡96-44井区石油地质综合研究[D].大庆:大庆石油学院,2007.
[16]刘宗堡.宋芳屯凹坡带葡萄花油层油气成藏模式及有力区块预测[D].大庆:大庆石油学院,2007.
[17]Parke A.Dickey.Petroleum Development Geology(Third Edition)[M],PennWell Publishing Company,Tulsa,Oklahoma USA,1986.
[18]李阳,刘建民.油藏开发地质学[M].北京:石油工业出版社,2007.
[19]计乘玉,梁文福.建立油田开发地质学应用分支的构想[J].石油勘探与开发,2006,33(5):606-608.
[20]裘亦楠.石油开发地质方法论(一)[J].石油勘探与开发,1996,23(2):43-47.
[21]裘亦楠.石油开发地质方法论(二)[J].石油勘探与开发,1996,23(3):48-51.
[22]裘亦楠.石油开发地质方法论(二)[J].石油勘探与开发,1996,23(4):42-45.
[23]裘怿楠,贾爱林.储层地质模型10年[J].石油学报,2000,21(4):101-104.
[24]Elise B.Bekele,Mark A.Person,Benjamin J.Rostron,et al.Modeling secondary oil migration with core-scale data:Viking Formation,Alberta basin[J].AAPG,86(1):55-74.
[25]Van De Graft,Ealey.1989.Geological Modeling for Simulation Studies[J].AAPG,73(11):835-856.
[26]Harris D G.The Role of fluid in Reservoir Simulation Studies,Reservoir Characterization-1[M].SPE Reprint Series No.27,1989.
[27]Bliefnick D and Kaldi J G.1996.Pore Geometry:Control on Reservoir Properties,Walker Creek Field,Columbia and Lafayette Counties,Arkansas[J].AAPG,80(7):1027-1044.
[28]Arthur Sailer,Brian Ball,Steve Robertson,et al.Reservoir characteristics of Devonian cherts and their control on oil recovery:Dollarhide field,west Texas[J].AAPG Bulletin,85(1):35-50
[29]金毓孙,等.陆相油藏开发论[M].北京:石油工业出版社,2006.
[30]王寿庆,许先华,何祖荣,等.对三肇凹陷葡萄花油层油藏的再认识[J].石油勘探与开发,2003,(30)6:48-50.
[31]陈立官.油气测井地质[M].成都:成都科技大学出版社,1990.
[32]王允诚.油气储层评价[M].北京:石油工业出版社,1999.
[33]Rob L.Allen.Using Deltaic Models and trophysics of Shales to Find More Permeable Areas in Fields Near the Rockies[R].SPE 23586,2000.
[34]宋子齐,白振强,陈荣环等.陕北斜坡东部低渗透储集层的有利沉积相带[J].新疆石油地质,2004,25(6):588-591.
[35]王友净,林承焰,董春梅,等.乐安油田草4块沙四段储层沉积特征与非均质性研究[J].中国石油大学学报(自然科学版),2007,31(3):7-12.
[36]赵应成,王天琦,田光荣,等.低渗透油田富集区预测技术研究——以松辽盆地扶杨油层为例[J],岩性油气藏,2007,19(1):21-26.
[37]刘勇,金晓辉,孙冬胜.直罗油田储层孔隙结构及对油水分布的控制作用[J].西安石油学院学报,1996,11(3):12-15.
[38]林承焰,谭丽娟,于翠玲.论油气分布的不均一性(Ⅰ)——非均质控油理论的由来[J].岩性油气藏,2007,19(2):16-21.
[39]林承焰,谭丽娟,于翠玲.论油气分布的不均一性(Ⅰ)——非均质控油理论的探讨[J].岩性油气藏,2007,19(3):14-22.
[40]王建民,周卓明.顺宁油田低渗透砂岩储层沉积特征与控油因素[J].石油与天然气地质,2001,22(2):146-149.
[41]何顺利,郑祥克,魏俊之.沉积微相对单井产能的控制作用[J].石油勘探与开发,2002,29(4):72-73.
[42]朱玉双,孙卫,梁小伟,等.丘陵油田陵二西区三间房组油藏注水开发动态特征[J].石油勘探与开发,2004,31(4):116-119.
[43]赵国瑜,宫伟.安塞特低渗油田注水开发效果分析[J].油气采收率技术,1999,6(4):23-28.
[44]金之钧,张一伟,王捷,等.油气成藏机理与分布规律[M].北京:石油工业出版社,2003.
[45]李明诚.石油与天然气运移[M].北京:石油工业出版社,2004.
[46]邱楠生,万晓龙,金之钧等.渗透率级差对透镜状砂体成藏的控制模式[J].石油勘探与开发,2003,30(3):48-51.
[47]曾溅辉,张善文,邱楠生,等.济阳坳陷砂岩透镜体油气藏充满度大小及其主控因素[J].地球科学:中国地质大学学报,2002,27(6):729-732.
[48]计秉玉,战剑飞,苏致新.油井见效时间和见水时间计算公式[J].大庆石油地质与开发,2000,19(5):24-26.
[49]王允诚.油层物理学[M].北京:石油工业出版社,1993.
[50]李兴国.油层微型构造对油井生产的控制作用——以胜坨、孤岛油田为例fJ].石油勘探与开发,1987,2(2),53-59.
[51]李兴国.对微型构造的点滴新认识[J].石油勘探与开发,1995,22(1):64-67.
[52]李杰,隋新光,吴艳菊,等.萨中葡Ⅰ组储层微型构造及其应用[J].大庆石油学院学报,2003,27(1):10-12.
[53]方锡贤,熊玉芹,吉玉香.焉耆盆地低含水油层产生原因及解释方法探讨.大庆石油地质与开发,2007,26(1):61-64.
[54]王庆.大庆油田芳169区块储层分布研究[R].中国华油集团肇州分公司(内部资料),2007.
[55]周继德,陈庭军.油井提液后水量的预测[J].石油钻采工艺,1993,15(3):28-29.
[56]叶鹏,盛国富,王修利,等.多油层油藏渗流理论在油井参数优选中的应用[J].大庆石油地质与开发,2005,24(8):31-32.
[57]唐仁选,谈士海,郎春艳.多油层合采的油井产液及含水特征分析[J].中国海上油气地质,2003,17(2):118-122.
[58]陶国秀.储层非均质性所形成的非常规油藏[J].河南石油,2005,19(5):4-6.
[59]张小莉,查明,王鹏.单砂体高部位油水倒置分布的成因机制[J].沉积学报,2006,24(1):148-152.
[60]张锐锋,党振荣,王健,等.含水油藏的形成、评价和勘探——关于一种可能的新油藏类型的探索[J].石油与大然气地质,2004,25(5):570-576.