论文部分内容阅读
通过对水平井开发凝析气藏中油气储层特征、非均质性、凝析油含量等的适应性分析,并通过具体的实践了解到,水平井要实现小压差下的大流量生产,可通过改变油气藏中的流动条件实现。同时也降低了边底水锥进速度。在具体的开发过程中较小的生产压差能延缓油气储层反凝析,导致储层包括更多的重成分,减低了油气储层气田露点的提高速度,从而有效地抑制了反凝析,提高了凝析油的采收效率。由于水平单井的控制储量较大,水平井中的较长的水平段扩大了井筒与储层的接触面,从而有效提高了水平井的产生,提高了凝析油以及凝析气的生产效率,凝析气藏开发中水平井具有较大的开发潜力。
Through the analysis of the adaptability of oil and gas reservoir characteristics, heterogeneity and condensate oil content in developing condensate gas reservoirs in horizontal wells, it is learned through concrete practice that the horizontal well should realize large flow production under small pressure drop , Can be achieved by changing the flow conditions in the reservoir. While also reducing the edge of the water cone speed. In the specific development process, the smaller production pressure can delay the retrograde condensate reservoir, resulting in the reservoir containing more heavy components, reducing the rate of increase of the dew point of the oil and gas fields, thus effectively inhibiting the retrograde condensate , Improve the condensate recovery efficiency. Due to the large controlled reserves of horizontal single well, the longer horizontal section in horizontal well enlarges the contact surface between wellbore and reservoir, thereby effectively raising the production of horizontal well and improving the production efficiency of condensate and condensate gas, Horizontal wells in the development of condensate gas reservoirs have great potential for development.