深层低渗稠油径向钻孔储层敏感参数研究

Research on Reservoir Sensitive Parameters of Radial Drilling for Deep and Low-permeability Heavy Oil Reservoir

深层低渗稠油油藏具有地质条件复杂、储量丰度低、经济效益差等特点,采用常规稠油热采或冷采工艺均无法实现有效动用,考虑径向钻孔技术具有定层位、定方位、定深度等技术优势,建立基于径向钻孔方式下的数值模拟模型,开展储层敏感参数间相互关系研究,最终建立径向钻孔模型下的开发技术界限筛选图版,为后期能否顺利实施径向钻孔提供合理筛选标准。

Deep and low-permeability heavy oil reservoir has characteristics with complicated geological conditions,low reserves abundance and economic benefit,conventional heavy oil thermal or cold production technology unable to achieve effective development. Considering that radial drilling technique has the technical advantages like fixing a certain layer,certain diection and certain depth,a numerical simulation model based on the radial drilling way is made to study on the relationship between different reservoirsensitive parameters. Finally,a technical limits screening plate based on the radial drilling model is made to give a reasonable screening criteria for smooth implementation of radial drilling in the laterstage.