Schlumberger Technology Corporation

Roger W McBride

Sarmad Adnan

Kambiz A Safinya

A system and method for sensing and determining operating features of coiled tubing (14) that is run in and out of a borehole. The coiled tubing (14) is stored on a reel (10) mounted on a reel frame (13) for transport from one job site to another. A reel database (22) is secured to the reel frame (13) at the first job site for the coiled tubing (14) and remains on the reel frame (13) for transport with the coiled tubing (14) for the entire life of the coiled tubing (14). The system provides for updating of the reel database (22) from sensor interface modules (SIMS 30B-30G) for predetermined operating characteristics of the coiled tubing (14) during operations. The system provides that data from the reel database (22) may be retrieved at a new job site to provide an accurate and current history of the predetermined characteristics of the coiled tubing (14).

Measuring recording and retrieving data on coiled tubing system

A system and method are disclosed for wireless two-way communication in a cased borehole having tubing extending therethrough. A downhole communications subsystem is mounted on the tubing. The downhole subsystem includes a downhole antenna for coupling electromagnetic energy in a TEM mode to and/or from the annulus between the casing and the tubing. The downhole subsystem further includes a downhole transmitter/receiver coupled to the downhole antenna, for coupling signals to and/or from the antenna. An uphole communications subsystem is located at the earth's surface, and includes an uphole antenna for coupling electromagnetic energy in a TEM mode to and/or from the annulus, and an uphole receiver/transmitter coupled to the uphole antenna, for coupling the signals to and/or from the uphole antenna. In accordance with a feature of the invention, the annulus contains a substantially non-conductive fluid (such as diesel, crude oil, or air) in at least the region of the downhole antenna and above.

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Sugar Land, TX, United States of America

Roger W McBride