Paradigm Drilling Services Limited - the development of a novel rotary well tractor capable of operating both within well liners and fresh borehole environments. To extend the reach and effectiveness of ERD wells

储层岩石的水平钻井增加了油气产量，因此变得越来越普遍。技术被用于扩大单个地点的覆盖范围，使传统钻井无法到达的绕过或小型矿床得以进入。大多数井是利用井眼垂直段或近垂直段的管柱的重量来施加将重量施加到钻头上所需的推力。该项目的目标是开发一套旋转动力牵引器，利用管柱旋转和钻井电机提供的动力，作为钻柱或完井管柱的一部分。这种类型的爬行器有多种用途，它可以提供推力或牵引力，以下入长段的套管或尾管，以完成ERD井的完井作业。此外，它们还可以提供牺牲泥浆马达驱动组合，通过长段的套管井、衬管井或裸眼储层，实现智能完井。泥浆润滑轴承在系统中使用，可以应对钻井泥浆和完井液的侵蚀性，但仍然需要有效地运行。这些轴承还需要在高pH值和高温条件下生存，以实现其所需的长寿命。创新与两个关键目标有关；旋转钻井拖拉机的概念从未被探索过，因此是极具创新性的。另一个关键的创新领域是上述轴承的开发，它可以承受高pH值、高温（高达2000摄氏度）、高粘度和来自含有砂砾、沙子和岩石碎屑的钻井泥浆的磨损。对于希望勘探更多偏远油气矿床的生产商来说，主要的好处是。利用现有的地面基础设施，使用旋转拖拉机，将确保碳氢化合物资源能够以经济有效的方式继续开采。用户最终受益

Horizontal drilling of reservoir rock increases oil and gas production and has become morecommon as a result. Techniques are being used to extend the area of coverage that can beachieved from a single location, enabling bypassed or small deposits to be accessed which arebeyond the reach of conventional drilling. Most wells are completed using the weight oftubulars in the vertical or near vertical section of hole to apply the pushing forces required toapply weight to the drill bit. The project aim is to develop a suite of rotationally poweredtractors that operate as a part of a drill string or completion string utilising the power providedby string rotation and a drilling motor. This type of tractor has multiple uses in that it couldprovide thrust or traction forces to deploy long sections of casing or liner for the completionof ERD wells: also, they could provide sacrificial mud motor driven assemblies to pullintelligent well completions through long sections of cased, lined or open hole reservoirformations. Mud lubricated bearings utilised in a system that can cope with the aggressivenature of drilling muds and completion fluids and yet still operate effectively requiredevelopment. These bearings also need to survive in high pH and elevated temperatureconditions to achieve their desired long life. Innovation is associated with the two keyobjectives; the concept of a rotary drilling tractor has never been explored and as such isextremely innovative. The other key area of innovation is the aforementioned bearingdevelopment that can survive high pH, elevated temperature (up to 2000C), high viscosity andwear from the ingress drilling muds containing grit, sand & rock chippings. The main benefitis for producers who wish to explore more remote hydrocarbon deposits. Utilising existing surface infrastructure with the use of rotary tractors will ensure hydrocarbon resources can continue to be extracted in a cost effective manner. Users ultimately benefit