Latching Assembly for Wellbore Logging Tools and Method of Use

摘要

A latching assembly for wellbore logging tools includes a bottom hole assembly to be disposed on a distal end of a drill string. The bottom hole assembly includes a landing sub (310) having a bore with a latching mechanism that includes latch jaws (321) and bias springs (323). The latch jaws can receive a landing shoulder (215). The biasing spring has a closing arm (352) and an opening arm (354) to respectively close and open the latch jaws. The bottom hole assembly includes a tool string (200) that includes the landing shoulder for engaging with the latch jaw of the landing sub, the biasing spring, and a logging assembly that includes at least one logging tool for obtaining and storing data about at least one geologic formation penetrated by the wellbore.

主权项

1. A wellbore logging assembly comprising:
a logging tool string including a logging assembly having at least one logging tool operable to obtain and store data regarding at least one geologic formation penetrated by the wellbore; a landing sub having a longitudinal bore therethrough, said longitudinal bore having an interior sidewall, said landing sub having a latching mechanism disposed in the longitudinal bore, said latching mechanism including:
at least one latch jaw coupled to a biasing spring, said biasing spring pivotably mounted to a latching jaw housing, said latch jaw movable radially inward away from the interior sidewall of the landing sub, said latch jaw having a latch face configured to engage a landing shoulder of the logging tool string, andwherein the at least one biasing spring includes a closing arm and an opening arm.