高狗腿度定向钻井技术的应用

High Dogleg Directional Drilling Technics Application

海上油田开发大多通过建立导管架或者水下井口进行钻采作业,有些导管架或水下井口建在油藏上方,导致平台正下方油藏开采难度较大。对轨迹设计进行了详细分析与总结,结合当下先进的定向钻井仪器与技术,制定了高狗腿度定向钻井技术方案,该方案既满足了工程施工要求,也满足了地质油藏要求,对开发平台下方油藏尤其是埋藏深度浅的油藏开发具有重要意义。

Most offshore oilfield developments are carried out through the establishment of jackets or subsea wellheads. Some jackets or subsea wellheads are built above the reservoir, making it difficult to mine the reservoir directly below the platform. The trajectory design was analyzed and summarized in detail. Combined with the current advanced directional drilling instruments and techniques, a high-legged directional drilling technical scheme was developed. This solution not only satisfies the engineering construction requirements, but also meets the requirements of geological reservoirs. Reservoirs under the platform, especially those with shallow depth of burial, are of great significance.