C601X块剩余油分布规律及挖潜部署方案研究
发布时间：2018-10-23 17:22
【摘要】：剩余油研究是油田开发中后期油藏管理的主要任务,是实现“控水稳油”开发战略的重要手段,随着勘探难度和成本的增加,提高原油采收率就显得更加迫切和重要,众多油田开发实践表明,水驱原油采收率一般只有30%左右,还有三分之二的剩余石油储量仍然残留在地下,因此准确地评价剩余油饱和度对油田开发中后期调整挖潜及三次采油方案的实施至关重要,剩余油及挖潜技术研究应用技术前景广阔。本文根据C601x块生产动态数据、测试分析资料,结合前期精细油藏描述研究成果基础上从目前开发层系、井网、井距适应性评价、细分开发层系研究、井网重组研究三个方面开展分析研究。在完善地质模型的基础上,应用相控建模技术建立研究区重点块数值模型。利用动态分析法和数值模拟法深入研究层内、层间及平面剩余油分布规律,建立不同沉积特征剩余油分布模式,以地质划分的基本单元,从水淹级别、剩余油饱和度、剩余可采储量丰度等几个方面定性、定量描述剩余油分布,总结剩余油分布规律,深入分析影响剩余油分布的主要因素,确定剩余油富集区域。开展细分层系、注采井网重组、局部水平井挖潜为主要内容的二次开发调整研究,并比对技术及经济指标提出区块二次开发部署建议,指导区块新井部署,以提高区块储量动用程度,改善区块开发效果。
[Abstract]:The research of remaining oil is the main task of reservoir management in the middle and late stage of oilfield development and an important means to realize the development strategy of "controlling water and stabilizing oil". With the increase of exploration difficulty and cost, it becomes more urgent and important to improve oil recovery. Many oilfield development practices show that the oil recovery rate of water drive crude oil is generally only about 30%, and 2/3 of the remaining oil reserves remain underground. Therefore, accurate evaluation of residual oil saturation is of great importance to the implementation of adjustment and tertiary oil recovery in the middle and late stage of oilfield development, and the research and application of remaining oil and potential tapping technology have broad prospects. Based on the production dynamic data of C601x block, the test and analysis data, combined with the previous fine reservoir description research results, this paper studies the adaptability evaluation of the present development layer, well pattern, well spacing, and the subdivision development layer system. Well pattern reorganization research carried out three aspects of analysis and research. Based on the improvement of geological model, the numerical model of key blocks in the study area is established by using phase control modeling technology. Using dynamic analysis method and numerical simulation method, the distribution law of residual oil in layer, interlayer and plane is deeply studied, and the distribution model of residual oil with different sedimentary characteristics is established. According to the basic units of geological division, the remaining oil saturation is obtained from the water flooding level and the saturation of residual oil. The remaining oil distribution is described quantitatively, the distribution law of remaining oil is summarized, the main factors affecting the remaining oil distribution are analyzed in depth, and the remaining oil enrichment area is determined. Carry out the secondary development adjustment research of subdivision layer system, injection-production pattern recombination, local horizontal well tapping as the main content, and compare the technical and economic indexes to put forward the suggestion of block secondary development deployment, and guide the new well deployment of block. In order to improve the level of block reserves production, improve the block development effect.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TE327
，
本文编号：2289952
[Abstract]:The research of remaining oil is the main task of reservoir management in the middle and late stage of oilfield development and an important means to realize the development strategy of "controlling water and stabilizing oil". With the increase of exploration difficulty and cost, it becomes more urgent and important to improve oil recovery. Many oilfield development practices show that the oil recovery rate of water drive crude oil is generally only about 30%, and 2/3 of the remaining oil reserves remain underground. Therefore, accurate evaluation of residual oil saturation is of great importance to the implementation of adjustment and tertiary oil recovery in the middle and late stage of oilfield development, and the research and application of remaining oil and potential tapping technology have broad prospects. Based on the production dynamic data of C601x block, the test and analysis data, combined with the previous fine reservoir description research results, this paper studies the adaptability evaluation of the present development layer, well pattern, well spacing, and the subdivision development layer system. Well pattern reorganization research carried out three aspects of analysis and research. Based on the improvement of geological model, the numerical model of key blocks in the study area is established by using phase control modeling technology. Using dynamic analysis method and numerical simulation method, the distribution law of residual oil in layer, interlayer and plane is deeply studied, and the distribution model of residual oil with different sedimentary characteristics is established. According to the basic units of geological division, the remaining oil saturation is obtained from the water flooding level and the saturation of residual oil. The remaining oil distribution is described quantitatively, the distribution law of remaining oil is summarized, the main factors affecting the remaining oil distribution are analyzed in depth, and the remaining oil enrichment area is determined. Carry out the secondary development adjustment research of subdivision layer system, injection-production pattern recombination, local horizontal well tapping as the main content, and compare the technical and economic indexes to put forward the suggestion of block secondary development deployment, and guide the new well deployment of block. In order to improve the level of block reserves production, improve the block development effect.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TE327
，
本文编号：2289952
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