提高复杂断块油藏建模精度的方法与对策
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摘要
复杂断块油藏较常规油藏建模的工作量及难度要大,由于缺乏对建模难点对策的系统剖析与引导,导致地质模型精度较多难以达到开发需求,严重影响了对油藏开发调整的决策。针对复杂断块油藏的地质特点和建模难点,从油藏建模的边界确定、速度模型转换、断层模型、层面模型、相和属性模型算法及约束方法等方面对建模的技术难点进行了剖析,对模拟方法选择、变差函数设置、砂体连通关系有效控制及干层或特低渗层的处理等难题提出了相应的解决对策,并根据不同开发阶段提出了合理的网格精度划分要求,系统提出并总结了各成果模型的验证方法,全面较好地解决了建模过程中的一系列难题,从而有效提高模型精度,为从事油藏地质建模的技术人员提供较好的指导。
The workload and difficulty of modeling complex fault block reservoir is greater than that of conventional reservoir.Due to the lack of systematic analysis and guidance to the countermeasures of difficulties in modeling,the precision of geological models is difficult to meet the development needs,which seriously affects the decision-making of reservoir development adjustment.In view of the geological characteristics and modeling difficulties of complex fault block reservoirs,the authors analyzed the technical difficulties of modeling from the following aspects:boundary determination of reservoir modeling,velocity model transformation,fault model,stratification model,algorithm and constraint method of phase and attribute model and so on.Corresponding countermeasures were put forward for the selection of simulation method,the setting of variation function,the effective control of sand body connectivity and the treatment of dry or ultra-low permeability layers.According to different stages of development,the reasonable requirements of grid accuracy were put forward,and the verification methods of each result model were put forward and summarized systematically.It solves a series of difficult problems in modeling process.Thus,the model accuracy can be improved effectively,and the technical personnel engaged in reservoir geological modeling will be provided with better guidance.
The workload and difficulty of modeling complex fault block reservoir is greater than that of conventional reservoir.Due to the lack of systematic analysis and guidance to the countermeasures of difficulties in modeling,the precision of geological models is difficult to meet the development needs,which seriously affects the decision-making of reservoir development adjustment.In view of the geological characteristics and modeling difficulties of complex fault block reservoirs,the authors analyzed the technical difficulties of modeling from the following aspects:boundary determination of reservoir modeling,velocity model transformation,fault model,stratification model,algorithm and constraint method of phase and attribute model and so on.Corresponding countermeasures were put forward for the selection of simulation method,the setting of variation function,the effective control of sand body connectivity and the treatment of dry or ultra-low permeability layers.According to different stages of development,the reasonable requirements of grid accuracy were put forward,and the verification methods of each result model were put forward and summarized systematically.It solves a series of difficult problems in modeling process.Thus,the model accuracy can be improved effectively,and the technical personnel engaged in reservoir geological modeling will be provided with better guidance.
引文
[1]窦松江,赵郁文,徐芳,等.埕海油田地质建模过程中的难点及对策[J].天然气地球科学,2010,21(4):652-656.
[2]窦松江,孙超囡,贾玉梅,等.滩海油田开发初期的地质建模研究[J].海洋石油,2008,28(1):13-18.
[3]窦松江,赵平起.断层封闭性在油田开发中的应用[J].断块油气田,2010,17(1):28-31.
[4]江艳平,芦凤明,李涛,等.复杂断块油藏地质建模难点及对策[J].断块油气田,2013,20(5):585-588.
[5]王宏,王蓓蕾,王成俊.“两步法”相控随机建模在延长油田储层描述中的应用[J].岩性油气藏,2011,23(4):110-114,132.
[6]李晓锋,彭仕宓,王海江,等.融合地震和测井信息的三角洲沉积微相随机建模研究:以扶余油田二夹五区块为例[J].西安石油大学学报(自然科学版),2008,23(5):37-39,42.
[7]李君君,王志章,张枝焕,等.精细三维地质模型构建[J].新疆石油地质,2011,32(5):484-486.
[8]陈建阳,于兴河,李胜利,等.多地震属性同位协同储集层地质建模方法[J].新疆石油地质,2008,29(1):106-108.
[9]窦松江,孙超囡,张艳君,等.大港油田储集层河道砂体内部构型研究[J].新疆石油地质,2009,30(3):284-286.
[10]白振强,王清华,杜庆龙,等.曲流河砂体三维构型地质建模及数值模拟研究[J].石油学报,2009,30(6):898-902,907.
[11]窦松江,王庆魁,倪金钟,等.大港油田官142断块巨厚砂岩储层流动单元[J].现代地质,2008,22(1):76-80,142.
[12]周游,程时清,张敏.储层建模中变差函数参数的设置[J].西安石油大学学报(自然科学版),2010,25(5):25-27,32.
[13]任殿星,李凡华,李保柱.多条件约束油藏地质建模技术[J].石油勘探与开发,2008,35(2):205-214.
[14]胡水清,韩大匡,夏吉庄.高含水期地震约束储层建模技术[J].石油与天然气地质,2008,29(1):128-134.
[15]赵国良,沈平平,穆龙新,等.薄层碳酸盐岩油藏水平井开发建模策略:以阿曼DL油田为例[J].石油勘探与开发,2009,36(1):91-96.
[16]胡望水,张宇焜,牛世忠,等.相控储层地质建模研究[J].特种油气藏,2010,17(5):37-39.
[2]窦松江,孙超囡,贾玉梅,等.滩海油田开发初期的地质建模研究[J].海洋石油,2008,28(1):13-18.
[3]窦松江,赵平起.断层封闭性在油田开发中的应用[J].断块油气田,2010,17(1):28-31.
[4]江艳平,芦凤明,李涛,等.复杂断块油藏地质建模难点及对策[J].断块油气田,2013,20(5):585-588.
[5]王宏,王蓓蕾,王成俊.“两步法”相控随机建模在延长油田储层描述中的应用[J].岩性油气藏,2011,23(4):110-114,132.
[6]李晓锋,彭仕宓,王海江,等.融合地震和测井信息的三角洲沉积微相随机建模研究:以扶余油田二夹五区块为例[J].西安石油大学学报(自然科学版),2008,23(5):37-39,42.
[7]李君君,王志章,张枝焕,等.精细三维地质模型构建[J].新疆石油地质,2011,32(5):484-486.
[8]陈建阳,于兴河,李胜利,等.多地震属性同位协同储集层地质建模方法[J].新疆石油地质,2008,29(1):106-108.
[9]窦松江,孙超囡,张艳君,等.大港油田储集层河道砂体内部构型研究[J].新疆石油地质,2009,30(3):284-286.
[10]白振强,王清华,杜庆龙,等.曲流河砂体三维构型地质建模及数值模拟研究[J].石油学报,2009,30(6):898-902,907.
[11]窦松江,王庆魁,倪金钟,等.大港油田官142断块巨厚砂岩储层流动单元[J].现代地质,2008,22(1):76-80,142.
[12]周游,程时清,张敏.储层建模中变差函数参数的设置[J].西安石油大学学报(自然科学版),2010,25(5):25-27,32.
[13]任殿星,李凡华,李保柱.多条件约束油藏地质建模技术[J].石油勘探与开发,2008,35(2):205-214.
[14]胡水清,韩大匡,夏吉庄.高含水期地震约束储层建模技术[J].石油与天然气地质,2008,29(1):128-134.
[15]赵国良,沈平平,穆龙新,等.薄层碳酸盐岩油藏水平井开发建模策略:以阿曼DL油田为例[J].石油勘探与开发,2009,36(1):91-96.
[16]胡望水,张宇焜,牛世忠,等.相控储层地质建模研究[J].特种油气藏,2010,17(5):37-39.