System and methods using fiber optics in coiled tubing
First Claim
1. A method of treating a subterranean formation intersected by a wellbore comprising the steps of:
- deploying a fiber optic tether into a coiled tubing;
deploying the coiled tubing into the wellbore;
performing a well treatment operation;
measuring a property in the wellbore; and
using the fiber optic tether to convey the measured property.
1 Assignment
0 Petitions
Accused Products
Abstract
Apparatus having a fiber optic tether disposed in coiled tubing for communicating information between downhole tools and sensors and surface equipment and methods of operating such equipment. Wellbore operations performed using the fiber optic enabled coiled tubing apparatus includes transmitting control signals from the surface equipment to the downhole equipment over the fiber optic tether, transmitting information gathered from at least one downhole sensor to the surface equipment over the fiber optic tether, or collecting information by measuring an optical property observed on the fiber optic tether. The downhole tools or sensors connected to the fiber optic tether may either include devices that manipulate or respond to optical signal directly or tools or sensors that operate according to conventional principles.
199 Citations
45 Claims
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1. A method of treating a subterranean formation intersected by a wellbore comprising the steps of:
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deploying a fiber optic tether into a coiled tubing;
deploying the coiled tubing into the wellbore;
performing a well treatment operation;
measuring a property in the wellbore; and
using the fiber optic tether to convey the measured property. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method of performing an operation in a subterranean wellbore comprising:
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deploying a fiber optic tether into a coiled tubing;
deploying the coiled tubing into the wellbore; and
performing at least one process step selected from transmitting control signals from a control system over the fiber optic tether to borehole equipment connected to the coiled tubing;
transmitting information from borehole equipment to a control system over the fiber optic tether;
transmitting a property measured by the fiber optic tether to a control system via the fiber optic tether. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27)
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28. An apparatus for performing an operation in a wellbore, comprising:
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coiled tubing adapted to be disposed in a wellbore;
surface control equipment;
at least one wellbore device connected to the coiled tubing;
a fiber optic tether installed in the coiled tubing and connected to each of the wellbore device and the surface control equipment, the fiber optic tether comprising at least one optical fiber whereby optical signals may be transmitted a) from the at least one wellbore device to the surface control equipment, b) from the surface control equipment to the at least one wellbore device, or c) from the at least one wellbore device to the surface control equipment and from the surface control equipment to the at least one wellbore device. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
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39. A method of determining a property in a wellbore comprising the steps of:
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deploying a fiber optic tether into a coiled tubing;
deploying a measurement tool into a wellbore on the coiled tubing;
measuring a property using the measurement tool; and
using the fiber optic tether to convey the measured property. - View Dependent Claims (40, 41, 42, 43, 44)
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45. A method of working in a wellbore comprising the steps of:
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deploying a fiber optic tether into a coiled tubing;
deploying the coiled tubing into the well; and
performing an operation;
wherein the operation is controlled by signals transmitted over the fiber optic tether.
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Specification