江汉油区水平井开发设计原则与方法

从基本地质油藏条件出发．以江汉油区为实例总结了边水油藏、低渗油藏和裂缝性油藏等不同油藏类型的水平井水平段方位和长度的设计原则。水平井水平段的方位由储层方向性决定，而水平段长度设计并非越长越好，应在满足水平井设计产能和经济投入允许的范围内以获得更高的储层钻遇率为目标进行设计；老区水平井水平段方位设计还需要考虑与现有井网的位置关系。在水平井单井优化设计过程中需要考虑储层方向性、油藏含油面积、老井网单井控制面积、与现有注采井网位置关系等地质和开发因素。以江汉油区广1区潜1^31（2）边水油藏为例运用数值模拟方法进行了水平段方位设计和长度优选。

The Design Principles and Methods of Horizontal Well Development in Jianghan Oilfiled

The design principles and methods of horizontal well development of several reservoir types concerning the geological and reservoir conditions were proposed. The mentioned reservoirs with low permeability reservoirs, edge reservoirs, fractured reservoirs, etc. The position of horizontal well decided by the direction characteristics of the reservoirs, and the length was not the longer the better, it should meet the level of productivity and economic inputs permitted. The design in a developed reservoir needed to consider the position and the location relationship of the existed well pattern and the horizontal well. It took the reservoir geography and development dynamic factors such as reservoir directional characteristics, reservoir area, production-injection well pattern control area, new reservoir development design into consideration. Horizontal well direction and length design are proposed in an edge water reservoir of Jianghan Oilfield by using numerical simulation.