公开(公告)号：WO2009032893A1

公开(公告)日：2009-03-12

申请号：PCT/US2008/075206

申请日：2008-09-04

Applicant: KEY ENERGY SERVICES, INC. ,  NEWMAN, Frederic M.

Inventor： NEWMAN, Frederic M.

IPC: B66D1/48

CPC classification number: B66D1/28 ,  B66D1/48

Abstract: A task input is received at a well service rig. The maximum allowable speed is determined for the task. Current block speed inputs are received. The throttle position for the engine controlling the block is evaluated to determine if the block is to be sped up or slowed down. When the throttle position indicates the operator is attempting to speed up the block, the current block speed is compared to the maximum allowable speed and the engine is only allowed to speed up the block up to the maximum allowable speed, at which point the operators control of block speed is limited to reducing block speed. Each task can have multiple maximum allowable speeds, which can vary based on specified conditions. When the hookload is light or the remaining equipment in the well is small, the lock-up feature for the transmission can be disengaged in addition to the block speed governing feature.

Abstract translation: 在井服务钻机上接收任务输入。 确定任务的最大允许速度。 接收当前块速度输入。 评估用于控制块的发动机的节气门位置以确定该块是加速还是减速。 当节气门位置指示操作者正在尝试加速块时，将当前块速度与最大允许速度进行比较，并且仅允许发动机将该块加速到最大允许速度，此时操作员控制 块速度被限制在减少块速度。 每个任务可以具有多个最大允许速度，这可以根据指定的条件而变化。 当吊钩较轻或井中剩余的设备较小时，除了挡块调速功能外，传动装置的锁定功能可以脱开。