Slip bowl load transfer system

摘要

A slip bowl load transfer system includes a first slip bowl assembly and a second slip bowl assembly. The first slip bowl assembly, adapted to engage and release a tubular member, includes a first slip bowl coupled to a second slip bowl. In an engaged state, the first slip bowl assembly imparts a compressive force on a portion of the tubular member between the first slip bowl and the second slip bowl. The second slip bowl assembly is adapted to engage and release the tubular member and is aligned with the first slip bowl assembly. When the second slip bowl assembly is engaging the tubular member in a second engaged state, the second slip bowl assembly is prevented from releasing the tubular member if the first slip bowl assembly is not in the engaged state.

主权项

1. A slip bowl load transfer system comprising:
a first slip bowl assembly adapted to engage and release a tubular member and comprising a first slip bowl coupled to a second slip bowl, wherein, in an engaged state, the first slip bowl assembly imparts a compressive force on a portion of the tubular member between the first slip bowl and the second slip bowl; a gap formed between the first slip bowl and the second slip bowl, wherein a sensor detects a change in the gap and wherein the sensor is tripped if the gap is smaller than a predetermined threshold; and a second slip bowl assembly adapted to engage and release the tubular member and that is aligned with the first slip bowl assembly; wherein, when the second slip bowl assembly is engaging the tubular member in a second engaged state, the second slip bowl assembly is prevented from releasing the tubular member if the sensor is tripped; and wherein the engaged state comprises engaging the tubular member with at least a minimum threshold of engaging force, wherein the minimum threshold of engaging force is a force sufficient to bite on the tubular member.