It is important to know the precise position of equipment when testing of the BOP, testing the wellhead, flow testing the well, kick control, well circulation and testing of spool trees between the wellhead and the BOP. Accordingly, there is provided a system for determining the real time position o
It is important to know the precise position of equipment when testing of the BOP, testing the wellhead, flow testing the well, kick control, well circulation and testing of spool trees between the wellhead and the BOP. Accordingly, there is provided a system for determining the real time position of equipment within a bore, the system including a data input means for inputting data concerning the physical characteristics of components which are run into the bore; a sensing means located, in use, within the bore and including a sensor for determining data concerning at least one physical characteristic of the equipment at a given time; a data storage means for recording the inputted data and the determined data; and a comparison means for comparing the input data and the determined data to establish which part of the equipment is being sensed by the sensor.
대표청구항▼
The invention claimed is: 1. A system for determining the real time position of components within a bore, the system comprising: a data sensor for obtaining data concerning the physical characteristics and profile of the components at a first location as the components run in the bore; a sensing ap
The invention claimed is: 1. A system for determining the real time position of components within a bore, the system comprising: a data sensor for obtaining data concerning the physical characteristics and profile of the components at a first location as the components run in the bore; a sensing apparatus located, in use, within the bore and including a bore sensor for determining data concerning at least one physical characteristic or the profile of the components at a given time at a second location; data storage for recording the obtained data and the determined data; and a processor for comparing the obtained data and the determined data to establish which of the components or part thereof is being sensed by the bore sensor at the second location. 2. A system according to claim 1, wherein the data sensor is arranged to accept information including the length, shape and/or diameter(s) of the components run in or out of the bore. 3. A system according to claim 1, wherein the data sensor is arranged to accept information including the distance between any change in diameter on a single component run in the bore. 4. A system according to claim 1, wherein the bore sensor determines the diameter and/or shape of the components at a given time. 5. A system according to claim 1, wherein the sensing apparatus further comprises another sensor for determining the distance between successive changes in diameter of tubular components. 6. A system according to claim 1, wherein the sensing apparatus includes a direction sensor for determining the direction of travel of the components within the bore. 7. A system according to claim 6, wherein the sensing apparatus includes a second bore sensor for determining the diameter of the components. 8. A system according to claim 1, further comprising a distance sensor for determining the distance travelled of equipment run in or out of the bore. 9. A system according to claim 1, wherein the processor is a microprocessor. 10. A system according to claim 1, wherein the bore is a subsea bore and the system further comprises a wellhead, a blow out preventer connected to the wellhead, a riser connecting the BOP with a drill rig, the drill rig including a travelling block/compensator attached to a derrick, draw works and a telescopic joint connecting the riser to the drill rig. 11. A system according to claim 10, further comprising a travel sensor on the telescopic joint for determining the relative movement between the riser and the drilling rig. 12. A system according to claim 10, further comprising a travel sensor for determining the relative movement of the top end of the riser and the rig. 13. A system according to claim 10, wherein the drill rig is located on a vessel and the sensing apparatus further includes: a travel sensor on the telescopic joint to measure the movement between the rig and the riser; a location sensor on the compensator to measure the movement between the component and the vessel; a diameter sensor to measure the diameter of the component; a motion sensor to measure the motion of the component relative to the wellhead; and a surface sensor to measure the length of the components. 14. A system according to claim 10 wherein the data sensor is located adjacent the rig and the sensing apparatus is located adjacent the wellhead. 15. A system according to claim 1, further comprising a visual display for displaying bore information to a user. 16. A system according to claim 1, wherein the bore sensor includes a plurality of emitters emitting flux lines and a plurality of receivers for receiving the flux lines. 17. A system for determining the real time position of components within a bore, the system comprising: a sensor for obtaining data concerning the physical characteristics and profile of the components which are run into the bore at a run-in location; a sensing means located, in use, within the bore and including a bore sensor for determining data concerning at least one physical characteristic or the profile of the components at a given time; a data storage means for recording the obtained data and the determined data; and a comparison means for comparing the obtained data and the determined data to establish which part of the components is being sensed by the bore sensor; and wherein the bore is a subsea bore and the system further comprises a wellhead, a blow out preventer connected to the wellhead, a riser connecting the BOP with a drill rig, the drill rig including a travelling block/compensator attached to a derrick, draw works and a telescopic joint connecting the riser to the drill rig; and wherein the comparison means is arranged to determine the position of the components relative to a fixed point on the seabed. 18. A system determining the real time position of components extending through a telescopic joint and riser from a rig at a sea surface through a wellhead at the sea floor and into a well bore, the system comprising: a distance sensor to determine the distance of travel of the components; a travel sensor on the telescopic joint to measure relative movement between the rig and the riser; a first sensor adjacent the rig to obtain data on the physical characteristics and profile of the components as they are run into the riser; a second sensor adjacent the wellhead to determine data on the physical characteristics and profile of the components as they are run into the well bore; and a processor for comparing data from the sensors to establish which of the components or part thereof is being sensed by the second sensor, wherein a result of the comparison is displayed. 19. The system of claim 18 wherein the first sensor measures the length and diameter of the components. 20. A computer-readable medium containing software that, when executed by a processor, causes the processor to: obtain first data from a first sensor at a first location sensing a component's characteristics; obtain second data from a second sensor at a second location sensing the component's characteristics; compare the first data with the second data to establish the component characteristics at the second location; and store a result of the comparison.
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