河间油田东营组开发地质特征及深部调驱研究

发布时间：2018-04-23 18:08

本文选题：河间油田 + 东营组　；参考：《东北石油大学》2017年硕士论文

【摘要】：针对河间油田开发中存在的问题及生产需要,本文对河间地区东营组油藏开发地质特征、水驱开发特征和剩余油分布、前期深部调驱效果评价、深部调驱方案编制、调驱方式及对象优选研究、风险预案及动态检测等方面进行了系统性研究。对该油藏重新进行了三维地震精细解释的基础上,以油藏地质特征和开发矛盾为研究对象,以改善油田开发效果、提高开发效益为目的开展油藏地质特征和深部调驱方案研究工作。1.油藏地质开发特征再认识,通过三维地震精细解释和地层对比工作,编制了油藏单砂体、油砂体和连通图;对地层的构造重新进行了解释,重点研究了油藏构造、局部微构造、断层及裂缝对开发效果及油水运动规律的影响;对储层的沉积特征开展了研究,研究了不同沉积环境中形成的砂体具有不同的储集特征,对油、气的运移、聚集和开发均有不同的影响;总结了地面和地层原油物性、地层水矿化度、二价阳离子浓度等。2.水驱开发特征和剩余油分布规律研究,分析总结油水井开发特征、含水变化规律等,分析地层压力变化。通过数值模拟技术开展储层水驱开发后的剩余油分布研究,明确进一步挖潜剩余油的区域和层位。3.前期深部调驱效果评价,对前期调驱井组效果进行分析,从注入体系、注入量、调驱井注入压力变化、产吸剖面变化,油井见效特征等多个方面评价调驱效果,分析调驱方式对油藏的适应性。4.深部调驱方案编制,在剩余油潜力研究的基础上,选择了适合的调驱井组;砂体分布稳定,注水见效明显;同时开展室内体系评价及配方优选,并根据注入井组的生产状况选择合适的调驱方式,对单井配注进行设计,通过数值模拟研究对水驱历史进行拟和,对调驱注入参数进行优化,最后对方案进行效果预测和技术经济评价。本文研究了河间东营油藏精细地层对比工作,编制了油藏单砂体、油砂体和连通图,为下一步开展深部调驱方案编制提供了基础。论证了河间东营油藏进入开发中后期油井普遍高含水的情况下,采用深部调驱技术来进一步改善开发效果是可行的。通过室内体系盲样评价优选出了适宜油藏的体系配方。完成了深部调驱方案编制,并对效果进行预测,能够取得较好的技术经济效益。本文虽然对河间油田东营组开发特征进行了深入分析,并制定了针对性的深部调驱方案,编制了应急预案,但仍需在实施过程中紧密进行现场跟踪和调整,确保最终实施效果。
[Abstract]:In view of the existing problems and production needs in the development of Hejian Oilfield, this paper deals with the development geological characteristics, water drive development characteristics and remaining oil distribution of Dongying formation reservoir in Hejian area, the evaluation of the effect of deep oil flooding in the early stage, and the compilation of deep flood control scheme. Systematic research on optimal selection, risk plan and dynamic detection is carried out. On the basis of the 3D seismic fine interpretation of the reservoir, the geological characteristics of the reservoir and the development contradiction are taken as the research objects to improve the development effect of the oil field. For the purpose of improving development efficiency, the research work of reservoir geological characteristics and deep prospecting and flooding scheme should be carried out. In recognition of reservoir geological development characteristics, through three dimensional seismic fine interpretation and stratigraphic correlation work, the single sand body, oil sand body and connected map of reservoir are compiled, the structure of formation is reinterpreted, and the reservoir structure and local microstructure are mainly studied. The influence of faults and fractures on the development effect and oil-water movement, the study on the sedimentary characteristics of reservoirs, the study of the different reservoir characteristics of sand bodies formed in different sedimentary environments, the migration of oil and gas, The physical properties of surface and formation crude oil, the salinity of formation water, the concentration of divalent cations, etc. The characteristics of water drive development and the distribution of remaining oil are studied, and the development characteristics and water cut of oil and water wells are analyzed and summarized, and the variation of formation pressure is analyzed. The distribution of remaining oil after reservoir waterflooding was studied by numerical simulation technology, and the area and horizon of remaining oil were determined. In the early stage, the effect of deep control and flooding is evaluated from the aspects of injection system, injection rate, injection pressure change, production and absorption profile change, oil well effect characteristics, etc. Analyze the adaptability of the oil reservoir. 4. On the basis of the study on the potential of remaining oil, a suitable well group is selected, the sand body distribution is stable, the water injection effect is obvious, at the same time, the indoor system evaluation and formula selection are carried out. According to the production condition of injection well group, the appropriate mode of adjusting and flooding is selected, and the single well injection allocation is designed. The history of water flooding is simulated by numerical simulation, and the injection parameters of the injection are optimized. Finally, the effect of the program prediction and technical and economic evaluation. In this paper, the fine stratigraphic correlation of Dongying reservoir in Hejian is studied, and the single sand body, oil sand body and connected map of the reservoir are compiled. It is proved that it is feasible to further improve the development effect by using deep oil displacement technology under the condition that the oil wells generally have high water cut in the middle and late stage of development in the Dongying reservoir of Hejian. The system formula suitable for reservoir was selected by blind evaluation of laboratory system. The deep flood control scheme is worked out and the effect is forecasted, which can obtain better technical and economic benefits. In this paper, though the development characteristics of Dongying formation in Hejian Oilfield are deeply analyzed, and a specific deep exploration and flooding scheme is formulated, and a contingency plan is worked out, it is still necessary to closely track and adjust the field in the course of implementation to ensure the final implementation 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】：TE357;P618.13

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