Abstract
Reducing the drilling preparation time between adjacent wells in deepwater oil and gas blocks can significantly reduce the costs of deepwater oil and gas resource development. Therefore, changing and optimizing the flow of operations between adjacent wells in deepwater drilling is crucial to reduce development costs. This paper proposes a new optimal method for platform navigation between adjacent wells, specifically, a platform of hang-off drilling riser navigation method. The mechanical properties of the suspended riser are analyzed using finite element simulations. Comparing the differences in stress and bending moments using static and dynamic analysis methods, the concept of hang-off drilling riser navigation between adjacent wells is first introduced, and then, a model is developed which takes into account the platform speed and the suspended length, speed, direction, and heading of the riser. The model can be used to design the shortest navigation routes to adjacent wells, significantly reducing the drilling time.
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