利用相渗曲线判断低渗油田水淹级别——以丘陵油田三间房组油藏为例
|
摘要
低渗油田无因次采液指数和采油指数的变化特征与高渗油田相比有很大差别,因此,高渗油田水淹层的界定标准不能应用于低渗油田,否则,将影响到不同级别水淹层产能预测和合理挖潜措施的制定。为了减少水淹级别与含水开发阶段因划分界限不同而产生相互交错,使不同类型油藏或同一油藏不同储集层之间具有可对比性,提出了按含水开发阶段进行水淹级别划分,并利用相渗曲线建立了水淹级别识别、产能预测和剩余油潜力评价等方法。经丘陵油田实际应用,不同水淹层试油产水率与预测结果一致,可为其他油田提供借鉴。
Low permeability oilfield's dimensionless fluid productivity and productivity indexes variation characteristics have very big dif-ference compared with high permeability oilfield,so high permeability oilfield water flooded layer's defined standards cannot be applied tolow permeability oil field. Otherwise,it will affect the productivity prediction of different levels of water flooded layers and the develop-ment of reasonable measures for tapping potential. In order to reduce the mutual crisscross between water flooded level and water-cut devel-opment stage with different boundaries,and make different types of reservoirs or the same reservoir be comparative between them,this pa-per proposes methods for determination of water flooded level limit in terms of the water-cut development stage,identification of the flood-ed levels,prediction of productivity and evaluation of remaining oil potentials by means of relative permeability curves. The case study in-dicates that by different water flooded layers testing,the water production rate is consistent with the prediction results,being worthy of ref-erence for other oilfields.
Low permeability oilfield's dimensionless fluid productivity and productivity indexes variation characteristics have very big dif-ference compared with high permeability oilfield,so high permeability oilfield water flooded layer's defined standards cannot be applied tolow permeability oil field. Otherwise,it will affect the productivity prediction of different levels of water flooded layers and the develop-ment of reasonable measures for tapping potential. In order to reduce the mutual crisscross between water flooded level and water-cut devel-opment stage with different boundaries,and make different types of reservoirs or the same reservoir be comparative between them,this pa-per proposes methods for determination of water flooded level limit in terms of the water-cut development stage,identification of the flood-ed levels,prediction of productivity and evaluation of remaining oil potentials by means of relative permeability curves. The case study in-dicates that by different water flooded layers testing,the water production rate is consistent with the prediction results,being worthy of ref-erence for other oilfields.
引文
[1]刘吉余,徐浩,刘曼玉.根据相渗曲线研究不同砂体水淹层解释标准方法[J].西部探矿工程,2010,22(2):64-65.Liu Jiyu,Xu Hao,Liu Manyu.A standard method for interpretation of water flooded layers in different sand bodies by using relative permeability curves[J].West-China Exploration Engineering,2010,22(2):64-65.
[2]刘志远,郭惠霞,李风铃,等.利用饱和度图版定量评价水淹层[J].测井技术,2006,30(2):142-143.Liu Zhiyuan,Guo Huixia,Li Fengling,et al.Assessment of flooded strata by using crossplot of water saturation[J].Well Logging Tech-nology,2006,30(2):142-143.
[3]刘萍,郝以岭,唐荣,等.岔河集砂岩油田水淹层剩余油饱和度计算方法研究[J].测井技术,2006,30(4):306-309.Liu Ping,Hao Yiling,Tang Rong,et al.Remaining oil saturation cal-culation method for water flooded zones in Chaheji sandstone oilfield[J].Well Logging Technology,2006,30(4):306-309.
[4]丁一,张占松,袁伟,等.M地区水淹层含水饱和度的计算[J].山东理工大学学报:自然科学版,2014,28(2):44-48.Ding Yi,Zhang Zhansong,Yuan Wei,et al.The calculation of water saturation in water flooded layer on M region[J].Journal of Shandong University of Technology:Natural Science Edition,2014,28(2):44-48.
[5]王庚阳,刘明新,宋振宇,等.利用常规测井确定油田开发期储层剩余油分布[J].石油学报,1992,13(4):60-66.Wang Gengyang,Liu Mingxin,Song Zhenyu,et al.The determination of the distribution of remaining oil in a developed reservoir bymeans of conventional log technique in an oilfield[J].Acta PetroleiSinica,1992,13(4):60-66.
[6]刘世华,谷建伟,杨仁锋.高含水期油藏特有水驱渗流规律研究[J].水动力学研究与进展,2011,26(6):660-666.Liu Shihua,Gu Jianwei,Yang Renfeng.Peculiar water-flooding lawduring high water-cut stage in oilfield[J].Chinese Journal of Hydro-dynamics,2011,26(6):660-666.
[7]高文君,姚江荣,公学成,等.水驱油田油水相对渗透率曲线研究[J].新疆石油地质,2014,31(6):629-631.Gao Wenjun,Yao Jiangrong,Gong Xuecheng,et al.Study on the oil-water relative permeability curve in water flooding oil-fields[J].Xin-jiang Petroleum Geology,2014,31(6):629-631.
[8]高文君,李宁,侯程程,等.2种无因次采液指数与含水率关系式的建立及优选[J].新疆石油地质,2015,36(1):70-74.Gao Wenjun,Li Ning,Hou Chengcheng,et al.Establishment and op-timization of two dimensionless liquid production index and watercut relationships[J].Xinjiang Petroleum Geology,2015,36(1):70-74.
[9]Welge H J.A simplified method for computing oil recovery by gasor water drive[J].Trans.,AIME,1952,195:91-98.
[10]陈元千.水驱曲线关系式的推导[J].石油学报,1985,6(2):69-78.Chen Yuanqian.Derivation of relationships of water drive curve[J].Acta Petrolei Sinica,1985,6(2):69-78.
[11]高文君,徐君.常用水驱特征曲线理论研究[J].石油学报,1995,34(3):89-92.Gao Wenjun,Xu Jun.Theoretical study on common water-drivecharacteristic curves[J].Acta Petrolei Sinica,2007,28(3):89-92.
[12]姚江源,何伶,方鑫鑫,等.淡水水淹过程中自然电位基线偏移随含水率变化规律[J].地质科技情报,2014,33(2):192-195.Yao Jiangyuan,He Ling,Fang Xinxin,et al.Relationship betweenspontaneous potential baseline shift and water cut in freshwaterflooding process[J].Geological Science and Technology Informa-tion,2014,33(2):192-195.
[13]王娜,句振伟,王汉军,等.水淹层测井评测方法在鄯善油田二次开发中的应用[J].工程地球物理学报,2013,10(1):35-40.Wang Na,Ju Zhenwei,Wang Hanjun,et al.Application of researchon logging identification methods in water-flooded zone[J].Chi-nese Journal of Engineering Geophysics,2013,10(1):35-40.
[14]韩清忠,雍世和.用常规电阻率测井资料确定水淹层的剩余油饱和度[J].测井技术,1996,20(5):351-355.Han Qingzhong,Yong Shihe.Determining oil saturation of floodedstrata from conventional resistivity logging[J].Well Logging Tech-nology,1996,20(5):351-355.
[15]陈存元,张豆娟.测井解释小层含水饱和度算法研究[J].石油天然气学报(江汉石油学院学报),2006,28(6):88-90.Chen Cunyuan,Zhang Doujuan.Calculation of subzone water satu-ration by logging interpretation[J].Journal of Oil and Gas Technol-ogy(Journal of Jianghan Petroleum Institute),2006,28(6):88-90.
[16]谭锋奇,李洪奇,孟照旭,等.含油饱和度恢复法定量评价砾岩油藏水淹层[J].西南石油大学学报:自然科学版,2010,32(4):92-98.Tan Fengqi,Li Hongqi,Meng Zhaoxu,et al.Quantitative evalua-tion of conglomerate reservoir water flooded layers by oil saturationrestoration methods[J].Journal of Southwest Petroleum University:Science&Technology Edition,2010,32(4):92-98.
[2]刘志远,郭惠霞,李风铃,等.利用饱和度图版定量评价水淹层[J].测井技术,2006,30(2):142-143.Liu Zhiyuan,Guo Huixia,Li Fengling,et al.Assessment of flooded strata by using crossplot of water saturation[J].Well Logging Tech-nology,2006,30(2):142-143.
[3]刘萍,郝以岭,唐荣,等.岔河集砂岩油田水淹层剩余油饱和度计算方法研究[J].测井技术,2006,30(4):306-309.Liu Ping,Hao Yiling,Tang Rong,et al.Remaining oil saturation cal-culation method for water flooded zones in Chaheji sandstone oilfield[J].Well Logging Technology,2006,30(4):306-309.
[4]丁一,张占松,袁伟,等.M地区水淹层含水饱和度的计算[J].山东理工大学学报:自然科学版,2014,28(2):44-48.Ding Yi,Zhang Zhansong,Yuan Wei,et al.The calculation of water saturation in water flooded layer on M region[J].Journal of Shandong University of Technology:Natural Science Edition,2014,28(2):44-48.
[5]王庚阳,刘明新,宋振宇,等.利用常规测井确定油田开发期储层剩余油分布[J].石油学报,1992,13(4):60-66.Wang Gengyang,Liu Mingxin,Song Zhenyu,et al.The determination of the distribution of remaining oil in a developed reservoir bymeans of conventional log technique in an oilfield[J].Acta PetroleiSinica,1992,13(4):60-66.
[6]刘世华,谷建伟,杨仁锋.高含水期油藏特有水驱渗流规律研究[J].水动力学研究与进展,2011,26(6):660-666.Liu Shihua,Gu Jianwei,Yang Renfeng.Peculiar water-flooding lawduring high water-cut stage in oilfield[J].Chinese Journal of Hydro-dynamics,2011,26(6):660-666.
[7]高文君,姚江荣,公学成,等.水驱油田油水相对渗透率曲线研究[J].新疆石油地质,2014,31(6):629-631.Gao Wenjun,Yao Jiangrong,Gong Xuecheng,et al.Study on the oil-water relative permeability curve in water flooding oil-fields[J].Xin-jiang Petroleum Geology,2014,31(6):629-631.
[8]高文君,李宁,侯程程,等.2种无因次采液指数与含水率关系式的建立及优选[J].新疆石油地质,2015,36(1):70-74.Gao Wenjun,Li Ning,Hou Chengcheng,et al.Establishment and op-timization of two dimensionless liquid production index and watercut relationships[J].Xinjiang Petroleum Geology,2015,36(1):70-74.
[9]Welge H J.A simplified method for computing oil recovery by gasor water drive[J].Trans.,AIME,1952,195:91-98.
[10]陈元千.水驱曲线关系式的推导[J].石油学报,1985,6(2):69-78.Chen Yuanqian.Derivation of relationships of water drive curve[J].Acta Petrolei Sinica,1985,6(2):69-78.
[11]高文君,徐君.常用水驱特征曲线理论研究[J].石油学报,1995,34(3):89-92.Gao Wenjun,Xu Jun.Theoretical study on common water-drivecharacteristic curves[J].Acta Petrolei Sinica,2007,28(3):89-92.
[12]姚江源,何伶,方鑫鑫,等.淡水水淹过程中自然电位基线偏移随含水率变化规律[J].地质科技情报,2014,33(2):192-195.Yao Jiangyuan,He Ling,Fang Xinxin,et al.Relationship betweenspontaneous potential baseline shift and water cut in freshwaterflooding process[J].Geological Science and Technology Informa-tion,2014,33(2):192-195.
[13]王娜,句振伟,王汉军,等.水淹层测井评测方法在鄯善油田二次开发中的应用[J].工程地球物理学报,2013,10(1):35-40.Wang Na,Ju Zhenwei,Wang Hanjun,et al.Application of researchon logging identification methods in water-flooded zone[J].Chi-nese Journal of Engineering Geophysics,2013,10(1):35-40.
[14]韩清忠,雍世和.用常规电阻率测井资料确定水淹层的剩余油饱和度[J].测井技术,1996,20(5):351-355.Han Qingzhong,Yong Shihe.Determining oil saturation of floodedstrata from conventional resistivity logging[J].Well Logging Tech-nology,1996,20(5):351-355.
[15]陈存元,张豆娟.测井解释小层含水饱和度算法研究[J].石油天然气学报(江汉石油学院学报),2006,28(6):88-90.Chen Cunyuan,Zhang Doujuan.Calculation of subzone water satu-ration by logging interpretation[J].Journal of Oil and Gas Technol-ogy(Journal of Jianghan Petroleum Institute),2006,28(6):88-90.
[16]谭锋奇,李洪奇,孟照旭,等.含油饱和度恢复法定量评价砾岩油藏水淹层[J].西南石油大学学报:自然科学版,2010,32(4):92-98.Tan Fengqi,Li Hongqi,Meng Zhaoxu,et al.Quantitative evalua-tion of conglomerate reservoir water flooded layers by oil saturationrestoration methods[J].Journal of Southwest Petroleum University:Science&Technology Edition,2010,32(4):92-98.