Patent ID: 7878266

Claim:
An apparatus for measuring forces acting on a tubing string within a wellbore, comprising: a body including a central passage and at least one internal void radially offset from the central passage; first and second end portions extending axially from opposing first and second ends of the body, respectively, wherein each of the first and second end portions includes an internal passage aligned with the central passage of the body, and wherein each of the first and second end portions includes an interface configured to detachably couple to the tubing string for conveyance of the apparatus within the wellbore; a clamp detachably coupled to the second end portion proximate the body; a plurality of first sensors coupled to the clamp and configured to detect strain induced by forces acting on the tubing string; at least one second sensor coupled to the body and configured to detect pressure and temperature within an annulus-shaped region radially interposing the apparatus and the wellbore; a memory device coupled to the body within the at least one internal void and configured to log measurements detected by the first and second sensors; and an electrical power supply coupled to the body within the at least one internal void and configured to provide electrical power to the memory device.