WEAKPOINT COUPLING OF SELECTIVELY ADJUSTABLE LOAD BEARING CAPACITY

摘要

A coupling to serve as a logging head or other downhole weakpoint assembly. The coupling is configured with a variety of internal tensile members. The individual members and load bearing capacities of each may be selectively engaged in a variety of combinations so as to provide a host of different load bearing capacities to the weakpoint coupling. Such selectable engagement is achieved through the dialing of a key by the user without the need to add or remove any load bearing features from the coupling. Thus, the user-friendly nature of the coupling is enhanced and the possibility of the user leaving behind supplemental load bearing tensile members for change-out is eliminated.