Abstract: A system and method for determining a partial pressure of hydrogen in a volume. A response is measured of a section of an optical fiber disposed in the volume to a parameter of the volume. A partial pressure of hydrogen in the volume is determined from the response of the optical fiber to the parameter. The presence of hydrogen in the volume is determined from the partial pressure of hydrogen.

Abstract: A spring actuated tool including a functional component, a spring in contact with the functional component, an acoustic sensor disposed in acoustic proximity to the spring, the acoustic sensor monitoring the spring for acoustic signals generated during spring deformation. A spring health monitor for a spring actuated tool including an acoustic sensor in acoustic communication with a spring of the spring actuated tool, the acoustic sensor configured to monitor the spring for acoustic signals generated during spring deformation, a communication arrangement communicatively connecting the sensor to an information destination. A method for managing a tool having an actuation spring, including monitoring sounds emitted from the spring during movement of the spring. A borehole system including a borehole in a subsurface formation, a string in the borehole, a spring actuated tool disposed within or as a part of the string.

Abstract: A through-tubing annular isolation device includes a plurality of building elements tethered sequentially together such that a tubular form is achieved at a second energy condition and a dimensionally smaller form is achieved at a first energy condition. A method for isolating an annular space through-tubing.

Abstract: A through-tubing annular isolation device includes a plurality of building elements tethered sequentially together such that a tubular form is achieved at a second energy condition and a dimensionally smaller form is achieved at a first energy condition. A method for isolating an annular space through-tubing.

Abstract: A spoolable signal conduction and connection line for a downhole environment including a length of signal conduction and connection line suitable for the downhole environment; and one or more connectors depending from the line along a length of the line, the connectors capable of making a signal bearing connection for the downhole environment.

Abstract: A spoolable signal conduction and connection line for a downhole environment including a length of signal conduction and connection line suitable for the downhole environment; and one or more connectors depending from the line along a length of the line, the connectors capable of making a signal bearing connection for the downhole environment.

Abstract: A tape measure comprises a main case having first and second sidewalls and a peripheral wall extending between the sidewalls; a flexible tape blade selectively deployable from the case; the tape blade having a generally curved cross-sectional profile when deployed from the main case and having a generally flat profile when retracted into the main case; a hook attached to a first end of the tape blade so as to be movable a distance along a longitudinal axis of the tape blade; the hook having a first section disposed generally parallel to the longitudinal axis and a second section connected thereto and disposed generally normal to the longitudinal axis, the hook comprising titanium and having a weight factor of not more than about 0.60. The tape blade may advantageously be not more than about 1.10 inch in width and have a standout of at least 9½ feet.

Abstract: Existing wire-line public switched telephone networks and Caller Identification (“CallerID”) systems operated by local telephone companies are utilized to deliver email notification to users via the users'telephone lines. The present invention queries the user's ISP remote server to determine whether any email addressed to the user is received by and/or stored thereon and, if so, causes an associated CallerID server of, for instance, the local telephone company to send an email notification signal in a format compatible with operating CallerID protocols to an email notification device using a public switched telephone network. By transmitting email notification signals over existing telephone lines, the present invention is widely available to users and advantageously eliminates the need for users to maintain a paging or cable service and, perhaps more importantly, does not require the user to maintain an online cable connection, an online Internet connection, or a paging device.