王龙庄断块精细化三维地质建模
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摘要
随着油田投入生产,许多油田基本上已进入中后期阶段,特点是高含水率、高采出率,开发难度变大,但大量剩余油依然存在于地下,并且分布更加零碎和繁琐,现在油田勘探的主要目的便是为了精确地呈现出剩余油的分布,进而提高采收率。为了实现这个目标,需要开展精细油藏描述,为勘探开发决策提供有力支持。根据王龙庄断块已有的井位、井斜、测井、录井等资料,以储层综合评价为基础,建立了王龙庄断块的三维地质模型,运用了比传统方法更先进的细分层方法进行建模,形成了精细油藏描述的三维可视化,最后对模型中5个主要的含油小层进行储量计算,再与原始测量得到的储量对比。王龙庄断块原始储量为116×104t,拟合储量为121. 11×104t,拟合相对误差4. 2%。计算结果表明,王龙庄断块储量拟合误差在允许范围之内。
As the oilfield was put into production,many oilfields have basically entered the middle and late stages,characterized by high water cut and high recovery rate,and the development difficulty becomes large,but a large amount of remaining oil still exists in the underground,and the distribution was more fragmented and cumbersome. The main purpose of exploration was to accurately presented the distribution of remaining oil and thus enhance oil recovery. In order to achieve this goal,a detailed reservoir description was needed to provide strong support for exploration and development decisions. According to the existing well position,well deviation,logging and logging data of Wanglongzhuang fault block,based on the comprehensive evaluation of reservoir,the 3 D geological model of Wanglongzhuang fault block was established,and the subdivision layer was more advanced than the traditional method. The method was modeled to form a three-dimensional visualization of the fine reservoir description. Finally,the reserves of the five major oil-bearing small layers in the model were calculated and compared with the original measured reserves. The original reserves of Wanglongzhuang fault block were 116 × 104 t,the fitted reserves were 121. 11 × 104 t,and the relative error of fitting was 4. 2%. The calculation results show that the fitting error of the Wanglongzhuang fault block is within the allowable range.
As the oilfield was put into production,many oilfields have basically entered the middle and late stages,characterized by high water cut and high recovery rate,and the development difficulty becomes large,but a large amount of remaining oil still exists in the underground,and the distribution was more fragmented and cumbersome. The main purpose of exploration was to accurately presented the distribution of remaining oil and thus enhance oil recovery. In order to achieve this goal,a detailed reservoir description was needed to provide strong support for exploration and development decisions. According to the existing well position,well deviation,logging and logging data of Wanglongzhuang fault block,based on the comprehensive evaluation of reservoir,the 3 D geological model of Wanglongzhuang fault block was established,and the subdivision layer was more advanced than the traditional method. The method was modeled to form a three-dimensional visualization of the fine reservoir description. Finally,the reserves of the five major oil-bearing small layers in the model were calculated and compared with the original measured reserves. The original reserves of Wanglongzhuang fault block were 116 × 104 t,the fitted reserves were 121. 11 × 104 t,and the relative error of fitting was 4. 2%. The calculation results show that the fitting error of the Wanglongzhuang fault block is within the allowable range.
引文
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[2] Carlson E. Three dimensional conceptual modeling of subsurface structure[J]. ASPRS AGSM,Annual Convention,1987(4):188-200.
[3]明镜.三维地质建模技术研究[J].地理与地理信息科学,2011,27(4):14-18.Ming Jing. Research on 3D geological modeling technology[J]. Geography and Geographic Information Science,2011,27(4):14-18.
[4]杨智敏,葛政俊,郑红.金湖凹陷安乐—王龙庄地区油气成藏条件研究[J].安徽地质,2008,18(3):189-192.Yang Zhimin,Ge Zhengjun,Zheng Hong. Research on hydrocarbon accumulation conditions in the Anle-Wanglongzhuang area,Jinhu sag[J]. Anhui Geology,2008,18(3):189-192.
[5]王磊.渤海湾盆地典型地区储层评价[D].大庆:大庆石油学院,2004.
[6]张婷,徐守余.储层地质建模技术研究与展望[J].长春理工大学学报(高教版),2009,4(4):191-192.Zhang Ting,Xu Shouyu. Research and prospect of reservoir geological modeling technology[J]. Journal of Changchun University of Technology(High Education Edition),2009,4(4):191-192.
[7]胡先莉,薛东剑.序贯模拟方法在储层建模中的应用研究[J].成都理工大学学报(自然科学版),2007,4(6):609-613.Hu Xianli,Xue Dongjian. Application of sequential simulation method in reservoir modeling[J]. Journal of Chengdu University of Technology(Natural Science Edition),2007,4(6):609-613.
[8]王金凯.濮城油田沙二上1油藏层序、沉积相及三维地质建模研究[D].青岛:山东科技大学,2008.
[9]张龙龙,纪仁忠,周新玉,等.大情字井低孔低渗油藏储层建模——以黑71断块为例[J].科技信息,2013(6):164.Zhang Longlong,Ji Renzhong,Zhou Xinyu,et al. Reservoir modeling for low porosity and low permeability reservoirs:taking black71 block as an example[J]. Scientific and Technological Information,2013(6):164.
[10]周金保.沉积微相研究成果在濮城油气田滚动勘探中的应用[J]石油勘探与开发,2004(4):68-70.Zhou Jinbao. Application of sedimentary microfacies in rolling exploration in pucheng oil and gas field[J]. Petroleum Exploration and Development,2004(4):68-70.
[11] Wang Tieguan,Wang Feiyu,Lu Hong,et al. Oil source and entrapment epoch of the Ordovician reservoir in Kongxi burial hill zone,Huanghua depression[J]. Acta Geologica Sinica,2001,75(2):212-219.
[12]宋吉水.陆相储层沉积微相自动识别及建模技术研究[D].杭州:浙江大学,2007.
[13]李雪.高6断块精细油藏描述[D].青岛:中国海洋大学,2011.
[14]王山章.文留油田文25断块精细油藏描述[D].青岛:中国海洋大学,2011.
[15]吴洁.春光油田新近系沙湾组精细地质模型研究[D].青岛:中国海洋大学,2012.