华庆油田里98区长8油藏数值模拟研究  

Research of numerical simulation of Chang8 reservoir in Li98 area of Huaqing Oilfield

作　　者：王明瑜 崔争攀 宋芳新 郑亚军 焦义垒 李跃 WANG MingYu;CUI ZhengPan;SONG FangXin;ZHANG YaJun;JIAO YiLei;LI Yue(No.10 Oil Recovery Plant of PetroChina Changqing Oilfield Company)

机构地区：[1]中国石油长庆油田分公司第十采油厂

出　　处：《低渗透油气田》2018年第1期45-49,共5页

摘　　要：为深入研究华庆油田里98区当前剩余油分布情况，预测今后开发调整的措施，采用数值模拟方法对里98井区进行研究。结合生产动态特征，从油藏的油、气、水等系统和油藏渗流规律考虑，选择黑油模型进行拟合。为了使模型能体现油藏的非均质性、流体的分布状态，使模拟结果能充分体现沉积微相、微构造等各种地质因素和注采井网调整，各种开发因素对地下油水运动、油水分布的控制和影响，对模型网格进行了细分，基本上可以反映油藏储层物性及流体的运动变化规律，模型体现了地质认识的结果，精确度较高。生产历史拟合过程中采用定产液量拟合，经过拟合，全区的含水拟合率较高，地层压力的拟合值与历年所测地层压力变化趋势一致，单井的拟合率也比较好，说明模型可以反映出油藏的渗流规律，可以用来预测油藏的剩余油变化及分布规律。In order to further study the current distribution of the remaining oil in the Well Li-98 district of Huaqing （Huachi- Qingcheng） Oilfield and predict the measures of future development and adjustment, a numerical simulation method was used to study the Well Li-98 area. Combined with characteristics of the production performance, the black oil model was selected to fit them, in terms of the oil-gas-water system of the reservoir and the law of the percolation in the reservoirs. In order to enable the model to embody the heterogeneity of the reservoir and the distribution of the fluid, the model grids are subdivided so as to enable the simulation results to fully reflect the sedimentary microfacies, microstructural and other geological factors, the injector-and-producer pattern adjustment, and the influence and control of various development factors on the underground oil and/or water movement, oil and/or water distribution. It can basically reflect the physical properties of reservoirs and the movement law of fluids. The model embodies the results of geological understanding, with high accuracy. The fitting process of the production history adopts a set production of fluid fitting. After fitting, the fitting rate of water cut in the whole area is high, and the fitting value of formation pressure is consistent with the variation trend of measured formation pressure over the years. The fitting rates of individual wells are also good. All these illustrate that the model can reflect the percolation law in the reservoirs, and can be used to predict the residual oil changes and distribution law in the reservoirs.

关 键 词：华庆油田 长8油藏 数值模拟 黑油模型 

分 类 号：TE319[石油与天然气工程—油气田开发工程]