论文部分内容阅读
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。目的提高超稠油油藏水平井开发效果。结果影响水平井开发的敏感性参数为水平段长度、水平渗透率、垂向渗透率、原油粘度、隔夹层等：在参考直井平面上波及半径为30m的基础上，选择平行水平井中间夹3口直井的布井方式为最佳方式；应采用先蒸汽吞吐后蒸汽驱开发，且在蒸汽驱过程中注入井打开油层中、上部．水平井位于油层中、下部，可以取得较好的开发效果。结论在水平井方案设计时，要考虑其敏感性因素；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；宜采用间隙蒸汽驱的开发方式。
Methods The numerical simulation method is used to study the development of steam injection in horizontal wells and well drilling methods. Objective To improve the development effect of horizontal wells in extra heavy oil reservoirs. Results The sensitivity parameters affecting the development of horizontal wells are horizontal section length, horizontal permeability, vertical permeability, crude oil viscosity, intercalation and so on. Based on the radius of 30 m on the reference vertical well plane, Orifice wells are the best way to wells; steam steam flooding should be used after the first steam huff and puff, and in the steam flooding process, the injection well opens the upper part of the reservoir. Horizontal wells located in the lower part of the reservoir, you can get a better development results. Conclusions In horizontal well plan design, the sensitivity factor should be considered. For Fengcheng super heavy oil reservoir. Should take the combination of vertical wells and horizontal wells cloth. The horizontal section of the horizontal well should be between 200m and 300m, and the horizontal well should be located at the bottom of the reservoir. The development of interstitial steam flooding should be adopted.