Rig Floor

Rig floor
The trend toward mechanized drilling systems began almost 2 decades ago, and new technologies are continuously being developed. The goal is an increase in safety for rig floor personnel and improvements in overall operational efficiency. Increased mechanization has driven both the implementation of new technology and the adaptation of existing equipment, helping the industry achieve safety and productivity goals that historically have not been possible.
Traditional casing or tubing running involves one crew member, the stabber, working thirty feet above the rig floor, secured to the rig only by a safety cable. The stabber's work is the most physically demanding and potentially dangerous job in the casing crew.
In the 1990s, several attempts were made to develop tools to remove human error from difficult makeup process with special pipe, but not necessarily with the intent to improve personnel safety or efficiency. In 1996, a system was introduced that allows stabberless running of casing and tubing strings. The system mainly consists of a hydraulically activated remote controlled arm that is mounted in the derrick and a remotely controlled set of a spider an elevator equipped with interlock and sensor systems. This system not only eliminates the job function of the stabber but it also allows much more precise alignment of the connection through position feedback and position memory control by the electronic control system. This minimizes delays because of cross-threading or damaged connections caused by out-of-center alignment of the joint to be stabbed.
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