Method of and apparatus for completing a well
First Claim
Patent Images
1. A completion apparatus for completing a wellbore comprising:
- a downhole barrier tool to alternatively open and close a throughbore of the completion apparatus;
a downhole packer tool to alternatively open and close an annulus defined between the outer surface of the completion apparatus and the inner surface of the wellbore;
a downhole circulation tool to alternatively provide and prevent a fluid circulation route from the throughbore of the completion apparatus to the annulus above the packer tool; and
a downhole signal receiver and processing tool that decodes wireless signals received to operate the downhole barrier tool, the downhole packer tool and the downhole circulation tool;
wherein the circulation tool is located below the signal receiver and processing tool, and both the packer tool and the barrier tool are located below the circulation tool.
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Abstract
A completion apparatus (4) for completing a wellbore comprises a) a tool to alternatively open and close a throughbore (15) of the completion; b) a tool (13) to alternatively open and close an annulus defined between the outer surface of the completion and the inner surface of the wellbore; c) a tool to alternatively provide and prevent a fluid circulation route from the throughbore of the completion to the said annulus (11); and d) at least one signal receiver and processing tool (9) capable of decoding signals received relating to the operation of tools a) to c).
205 Citations
29 Claims
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1. A completion apparatus for completing a wellbore comprising:
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a downhole barrier tool to alternatively open and close a throughbore of the completion apparatus; a downhole packer tool to alternatively open and close an annulus defined between the outer surface of the completion apparatus and the inner surface of the wellbore; a downhole circulation tool to alternatively provide and prevent a fluid circulation route from the throughbore of the completion apparatus to the annulus above the packer tool; and a downhole signal receiver and processing tool that decodes wireless signals received to operate the downhole barrier tool, the downhole packer tool and the downhole circulation tool; wherein the circulation tool is located below the signal receiver and processing tool, and both the packer tool and the barrier tool are located below the circulation tool. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method of completing a wellbore comprising the following steps in turn of:
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i) running in a completion apparatus into the wellbore, the completion apparatus being provided at a lower end of a production tubing which is adapted to selectively contain fluid at pressure, the completion apparatus comprising; a downhole barrier tool to alternatively open and close a throughbore of the completion apparatus; a downhole packer tool to alternatively open and close an annulus defined between an outer surface of the completion apparatus and an inner surface of the wellbore; a downhole circulation tool to alternatively provide and prevent a fluid circulation route from the throughbore of the completion apparatus to the annulus; and a downhole signal receiver and processing tool that decodes wireless signals received relating to the operation of the downhole barrier tool, the downhole packer tool and the downhole circulation tool; ii) operating the downhole barrier tool to close the throughbore of the completion apparatus; iii) increasing a pressure within the production tubing to pressure test the completion apparatus and the production tubing; iv) operating the downhole packer tool to close the annulus; v) operating the downhole circulation tool to provide a fluid circulation route from the throughbore of the completion apparatus to the annulus and circulate a fluid through the production tubing and out into the annulus and back to a surface; vi) operating the downhole circulation tool to prevent the fluid circulation route from the throughbore of the completion apparatus to the annulus such that the fluid is prevented from circulating; and vii) operating the downhole barrier tool to open the throughbore of the completion apparatus. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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Specification