Drilling system and method of operating a drilling system
First Claim
1. A drilling system for drilling a subterranean well bore, the system comprising:
- a controller; and
at least two sets of field devices comprising a first set of field devices and a second set of field devices, each of the at least two sets of field devices being configured to measure a physical characteristic of the drilling system and to transmit to the controller signals representing a measured value of the physical characteristic,wherein,the controller is programmed to use a first set of algorithms to process the signals received from the first set of field devices to determine if the measured values represented by the signals indicate that there might have been an influx of formation fluid into the subterranean well bore,the controller is programmed to use a second set of algorithms to process the signals received from the second set of field devices to determine if the measured values represented by the signals indicate that there might have been an influx of formation fluid into the subterranean well bore,each of the at least two sets of field devices comprises at least one field device, andwherein the controller is further programmed,to assign a numerical importance level to each of the at least one field device,to use the numerical importance level of each of the at least one field device in each of the first set of field devices or in the second set of field devices to assign a safety score for each of the first set of field devices or the second set of field devices, andto subtract from the safety score the numerical importance level of any of the at least one field device determined to be faulty.
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Accused Products
Abstract
A drilling system for drilling a subterranean well bore includes a controller and a first and a second set of field devices. Each of the first and second set of field devices measure a physical characteristic of the drilling system and to transmit to the controller signals representing a measured value of the physical characteristic. The controller is programmed to use a first set of algorithms to process the signals received from the first set of field devices to determine if the measured values represented by the signals indicate that there might have been an influx of formation fluid into the subterranean well bore, and a second set of algorithms to process the signals received from the second set of field devices to determine if the measured values represented by the signals indicate that there might have been an influx of formation fluid into the subterranean well bore.
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Citations
21 Claims
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1. A drilling system for drilling a subterranean well bore, the system comprising:
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a controller; and at least two sets of field devices comprising a first set of field devices and a second set of field devices, each of the at least two sets of field devices being configured to measure a physical characteristic of the drilling system and to transmit to the controller signals representing a measured value of the physical characteristic, wherein, the controller is programmed to use a first set of algorithms to process the signals received from the first set of field devices to determine if the measured values represented by the signals indicate that there might have been an influx of formation fluid into the subterranean well bore, the controller is programmed to use a second set of algorithms to process the signals received from the second set of field devices to determine if the measured values represented by the signals indicate that there might have been an influx of formation fluid into the subterranean well bore, each of the at least two sets of field devices comprises at least one field device, and wherein the controller is further programmed, to assign a numerical importance level to each of the at least one field device, to use the numerical importance level of each of the at least one field device in each of the first set of field devices or in the second set of field devices to assign a safety score for each of the first set of field devices or the second set of field devices, and to subtract from the safety score the numerical importance level of any of the at least one field device determined to be faulty. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A controller for controlling a drilling system for drilling a subterranean well bore, the controller being programmed to,
process signals received from at least two sets of field devices comprising a first set of field devices and a second set of field devices, each of at least one two sets of field devices being operable to measure a physical characteristic of the drilling system and to transmit to the controller signals representing a measured value of the physical characteristic, each of the at least two sets of field devices comprising at least one field device, to use a first set of algorithms to process the signals received from the first set of field devices to determine if the measured values represented by the signals indicate that there might have been an influx of formation fluid into the subterranean well bore, to use a second set of algorithms to process the signals received from the second set of field devices to determine if the measured values represented by the signals indicate that there might have been an influx of formation fluid into the subterranean well bore, to assign a numerical importance level to each of the at least one field device, to use the numerical importance level of each of the at least one field device in each of the first set of field devices or in the second set of field devices to assign a safety score for each of the first set of field devices or the second set of field devices, and to subtract from the safety score the numerical importance level of any of the at least one field device determined to be faulty.
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13. A system for drilling a subterranean well bore, the system comprising:
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a controller; at least one drilling control device; and at least one field device; wherein, the controller is connected to the at least one drilling control device so that the controller controls a drilling by effecting an operation of the at least one drilling control device, the controller is connected to the at least one field device, the at least one field device is configured to measure a physical characteristic of the system and to transmit to the controller signals representing a measured value of the physical characteristic, the controller is programmed to process the signals received from the at least one field device and to determine if the measured value represented by the signals indicate that there might have been an influx of formation fluid into the subterranean well bore, the at least one field device is provided in each of at least three sets of field devices comprising a first set of field devices, a second set of field devices, and a third set of field devices, and the controller is further programmed, to use a first set of algorithms to process the signals received from the first set of field devices to determine if the measured values represented by the signals indicate that there might have been an influx of formation fluid into the subterranean well bore, to use a second set of algorithms to process the signals received from the second set of field devices device to determine if the measured values represented by the signals indicate that there might have been an influx of formation fluid into the subterranean well bore, and to use a third set of algorithms to process the signals received from the third set of field devices to determine if the measured values represented by the signals indicate that there might have been an influx of formation fluid into the subterranean well bore. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21)
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Specification