The axisymmertyical hyperbola function mathematical formulation of pressure fall-off curves is given by analysing the pattern of the generous pressure fall-off curves of the injection wells. 通过对注水井压降曲线形态的分析,提出了压降曲线的等轴双曲函数的数学表达式。
The flow pattern, flow direction and slope of tube have been considered in the formula used for calculating the holding liquid rate and friction coefficient of the two-phase flow and it is applicable to pressure calculation of two-phase flow in directional wells ( also vertical wells). 所采用的两相流持液率和摩阻系数计算公式考虑了流型、流向和管子斜度,适用于定向井(包括垂直井)气液两相流压力计算。
For super heavy oil reservoir of Feng-cheng, combined pattern of vertical and horizontal wells is available. foe length of horizontal interval should be 200~ 300 m in bottom of the reservoir; 对凤城超稠油油藏.宜采取直井与水平井组合方式布井.水平井水平段长度应在200~300m之间,水平井位于油层底部;
This paper provides an efficient algorithm for the computation of the transient pressure responses of an inclined multiwell system, in which the inclination angle, changeable production rate, pattern arrangement, and number of wells can all be arbitrary. The algorithm is verified by example computation. 本文对于任意倾斜角度、任意变化产量、任意排列形式的任意多口斜井的多井系统的压力响应提出了一种有效算法,并且通过计算实例进行了验证。
The future potential of the reservoir development has been analyzed from three aspects, namely, well pattern infilling adjustment, restoring the production performance of flank high water-cut wells by sidetracking and oil and water stimulation measures. 从加密调整、侧钻井恢复边部高含水井产能、油水井增产措施等三个方面分析了油藏今后的开发潜力;
The article establishes a fuzzy decision pattern of multilayer and multi-objective system, and chooses the optimal observation well in the pumping test of disturbed wells and the optimal pumping well in the pumping test of single wells by this system quantitatively. 该文通过建立多层次多目标系统模糊决策模型,分别定量的优选了干扰井群抽水试验的最佳观测孔和单井抽水试验的最佳抽水试验单井;
Geologic characteristics of complicated fault-block oil reservoir in Wenzhong area are introduced. Application and effect of some technologies of double target directional well, sidetracking, updating water injector, well pattern recombination, adjusting displacement by profile control of water injection wells are discussed. 介绍了文中复杂断块油藏的地质特征,论述了双靶定向井、侧钻井、注水井更新、井冈重组、注水井调驱等工艺在文中油田的应用及效果。
Severe heterogeneity of oil-bearing formations, low perfecting degree of well pattern and interlayer interference cause the non-equilibrium of reservoir pressure and restrict the production potential of oil and water wells. 由于油层非均质性严重、注采井网完善程度低、层间干扰等原因,造成油藏压力不均衡,制约了油水井生产潜力的发挥。
Method Steam injection development and well pattern of horizontal wells were studied by using numerical simulation. 方法利用数值模拟方法,对水平井注蒸汽的开发、布井方式等进行研究。
Quantitative optimization of the intermittent production pattern of low producing oil wells and its applications 低产油井间开模式定量优化及应用
The vadose theory, including conformal mapping, mirror image and superposition principle are used to derive the formulae for calculating the productivity of combined well pattern of horizontal and vertical wells, the formulae are proven and contrasted by electric simulation experiment based on the well pattern. 研究运用保角变换法、镜像反映和势叠加原理等渗流力学理论推导水平井直井联合井网产能公式,采用电模拟实验手段针对所建立的井网产能公式进行了验证、对比。
Study on numerical modelling of combinational well pattern of horizontal and vertical wells in heavy oil reservoir 稠油油藏水平井与直井组合布井方式数模式研究
The well testing data from development wells vary seriously and the pattern of pressure derivative curve changes quickly, that makes the well testing data interpretation of development wells more complicated and more difficult. 开发井的试井资料变异严重,压力导数曲线形态变化快,使得开发试井资料解释工作更加复杂,难度更大。
This paper analyzes current states of inspecting wells, current management and maintenance, points out their existent problems, and finally puts forward a new pattern of inspecting wells management and maintenance which suits new situations. 针对当前太原市检查井的管理与维护现状,指出了检查井管理和维护方面存在的问题,提出了新形势下检查井管理与维护的新模式。
This paper presents a powerful algorithm to calculate the transient pressure responses of an inclined multi-well system, in which the inclination angle, changeable production rate, pattern arrangement, and number of wells can all be arbitrary. 对于斜井多井系统的瞬时压力响应提出了一种有效的算法。该算法适用于任何倾斜角度、任意变化产率、任意排列方式和任意多口井。