Patent
Microprocessor integrated multifunction hoist system controller
Barry J. Nield
- 04 Aug 2004
28
TL;DR: In this article, a multi-function cable hoist system controller monitors a variety of drilling rig HOI functions, including positioning of the HOI, speed/momentum of HOI blocks, and HOI block loading.
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Abstract: The present multi-function cable hoist system controller monitors a variety of drilling rig hoist system functions, including: positioning of the hoist block of the hoist system, speed/momentum of the hoist block, and hoist block loading. The controller can also monitor: cable ton-mile parameters, weight on the drill bit, and drill bit penetration rate. The controller automatically controls operation of the hoist system's drawworks when the system's operation exceeds certain preset and user specified parameters. The controller has a housing containing a microprocessor, supporting circuitry, and input and output systems. An instruction set digitally stored on the microprocessor codes for the functional features of the controller and enables it to process inputs and to generate outputs to accomplish the controller's functions. Device input means and display/alarm means are mounted on the front panel of the housing. A drawworks output communicates drawworks control signals to the hoist system.
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Citations
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Ted Egilsson,Ken Andreasen +1 more
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Ilia Pobedinski,Sanjit Roy,Ferhat Gumus,Koray Kinik,Iain Cook,Lev Ring,Guy F. Feasey +6 more
- 05 Oct 2015
TL;DR: In this paper, a computerized control system performs controlled pressure drilling in a formation with a drilling system according to a plan, and the control system can switch from the operating mode to the simulating mode for simulated interaction with the setup.
25
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Brian David Brookover
- 26 Oct 2007
TL;DR: In this article, an electronic control for automated earth drilling using a pneumatic hammer-operated bit, preliminarily weighs a drill string, and, during drilling, automatically maintains a desired weight on the bit, and also maintains a constant rate of drilling progress.
24
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Multiple sensor for preventing a crown-block incursion on an oil well rig
Frederic M. Newman
- 16 Sep 2004
TL;DR: In this article, a multiple sensor system that prevents crown incursion by a traveling block in an oil rig is presented, which calculates traveling block position, traveling block velocity and weight supported by the traveling block, and uses this information to calculate emergency stopping positions to prevent crown out by the travelling block.
19
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