强非均质性砂岩油藏注水开发参数优化分析
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摘要
现阶段关于非均质砂岩油藏开发均衡驱替过程中,划分一套开发层系存在严重层间干扰问题,同时针对注水开发过程中各参数的优选标准均是考虑从获得最大采收率角度出发。针对强非均质砂岩注水开发过程中,对低渗层段进行压裂开发,解决一套开发层系下层间矛盾的问题,同时定义无水期采收率和最终采收率和值这一新标准对各开发参数进行优选,并针对X区块进行论证,对比分析两种评价标准模拟开发40a的全区采油速率,计算求得最终累计将来值。结果显示采用新标准能在初期获得更高大的财务净现值,并且累计将来值更大。通过本文提出的新标准,可以为砂岩油藏注水开发过程中各参数的优选提供一点借鉴的地方。
At present, in the development process of heterogeneous sandstone reservoir, serious inter-layer interference problem exists in a set of development layers is seldom considered. At the same time, the optimization criteria of each parameter in the process of water injection are all considered to obtain the maximum recovery. In the process of water flooding in strong heterogeneous sandstone, the fracture development of low permeability layers has been developed to solve the problem of interlayer contradiction in a set of development strata. In this paper, the new standard of the recovery rate and final recovery and value of the water free period was defined, and the development parameters were selected for the X block, and the comparison and analysis of two kinds of evaluation standards for simulation development of 40 years whole area oil recovery rate were carried out, the final net present value was calculated. The results showed that the new standard got a higher financial net present value in the early stage, and the final financial net present value was greater. The new standard proposed in this paper can provide some reference for the optimization of parameters in the process of water flooding development in sandstone reservoirs.
At present, in the development process of heterogeneous sandstone reservoir, serious inter-layer interference problem exists in a set of development layers is seldom considered. At the same time, the optimization criteria of each parameter in the process of water injection are all considered to obtain the maximum recovery. In the process of water flooding in strong heterogeneous sandstone, the fracture development of low permeability layers has been developed to solve the problem of interlayer contradiction in a set of development strata. In this paper, the new standard of the recovery rate and final recovery and value of the water free period was defined, and the development parameters were selected for the X block, and the comparison and analysis of two kinds of evaluation standards for simulation development of 40 years whole area oil recovery rate were carried out, the final net present value was calculated. The results showed that the new standard got a higher financial net present value in the early stage, and the final financial net present value was greater. The new standard proposed in this paper can provide some reference for the optimization of parameters in the process of water flooding development in sandstone reservoirs.
引文
[1]Muskat M. Physical Principles of Oil Production:Reply to Review[J].Journal of Geology, 1951, 59(5):513-515.
[2]Smith, Charles R. Mechanics of secondary oil recovery[M]. Reinhold Pub. Corp, 1966.
[3]张锐,俞启泰.天然水驱砂岩油藏开发效果分析[J].石油勘探与开发, 1991(3):46-54.
[4]赵长久.用水动力学方法改善水驱开发效果[J].油气地质与采收率, 1996(2):27-33.
[5]张顺,林春明,苏树林,等.提高非均质砂岩油田水驱采收率的新思路[J].石油学报, 2001, 22(4):55-59.
[6]闫范,侯平舒,张士建,等.非均质注水开发油藏提高水驱油效率研究及应用[J].钻采工艺, 2003, 26(6):48-49.
[7]姜必武,牛彦良,欧瑾,等.不稳定注水提高非均质油藏水驱开发效果研究[J].大庆石油地质与开发, 2005, 24(4):45-46.
[8]杨林江,谢勇智,魏然,等.间歇注水在砂岩油藏提高采收率研究及应用[J].内蒙古石油化工, 2012, 38(24).
[9]王丽.储层非均质性描述及对注水开发的影响[J].西部探矿工程,2015, 27(6):72-75.
[10]石秀秀,杨荣荣.改善低渗透碳酸盐岩油藏注水开发效果的技术及应用[J].化工设计通讯, 2017, 43(11).
[11]郭秀文.边底水油藏见水时间及无水期采收率的确定[J].断块油气田, 2003, 10(1):51-52.
[12]张小龙,杨志兴,王群超,等.数值模拟辅助历史拟合新方法研究及应用[J].天然气与石油,2018,36(01):76-80.
[2]Smith, Charles R. Mechanics of secondary oil recovery[M]. Reinhold Pub. Corp, 1966.
[3]张锐,俞启泰.天然水驱砂岩油藏开发效果分析[J].石油勘探与开发, 1991(3):46-54.
[4]赵长久.用水动力学方法改善水驱开发效果[J].油气地质与采收率, 1996(2):27-33.
[5]张顺,林春明,苏树林,等.提高非均质砂岩油田水驱采收率的新思路[J].石油学报, 2001, 22(4):55-59.
[6]闫范,侯平舒,张士建,等.非均质注水开发油藏提高水驱油效率研究及应用[J].钻采工艺, 2003, 26(6):48-49.
[7]姜必武,牛彦良,欧瑾,等.不稳定注水提高非均质油藏水驱开发效果研究[J].大庆石油地质与开发, 2005, 24(4):45-46.
[8]杨林江,谢勇智,魏然,等.间歇注水在砂岩油藏提高采收率研究及应用[J].内蒙古石油化工, 2012, 38(24).
[9]王丽.储层非均质性描述及对注水开发的影响[J].西部探矿工程,2015, 27(6):72-75.
[10]石秀秀,杨荣荣.改善低渗透碳酸盐岩油藏注水开发效果的技术及应用[J].化工设计通讯, 2017, 43(11).
[11]郭秀文.边底水油藏见水时间及无水期采收率的确定[J].断块油气田, 2003, 10(1):51-52.
[12]张小龙,杨志兴,王群超,等.数值模拟辅助历史拟合新方法研究及应用[J].天然气与石油,2018,36(01):76-80.