Procedure and production pipe for production of oil or gas from an oil or gas reservoir
First Claim
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1. A method of production of oil or gas from a horizontal well defined within an oil or gas reservoir, said method comprising:
- positioning directly within said well a drainage pipe to receive in an interior thereof oil or gas from said reservoir;
dividing said drainage pipe exteriorly thereof into longitudinally separate sections each receiving individually oil or gas pressure from said reservoir;
providing each said separate section with at least one inflow restriction device communicating the exterior of said each section with said interior of said drainage pipe; and
regulating the pressure profile along said drainage pipe by controlling individually the amount of flow of oil or gas from said reservoir through said at least one inflow restriction device of each said section.
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Abstract
A production pipe for production of oil or gas from a well in an oil and/or gas reservoir, or for injection of fluids into a well in an oil and/or gas reservoir, includes a production pipe with a lower drainage pipe. The drainage pipe is divided into sections with one or more inflow restriction devices which control the flow of oil or gas from the reservoir into the drainage pipe on the basis of calculated loss of friction pressure along the drainage pipe, the calculated productivity profile of the reservoir, and the calculated inflow of gas or water.
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Citations
20 Claims
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1. A method of production of oil or gas from a horizontal well defined within an oil or gas reservoir, said method comprising:
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positioning directly within said well a drainage pipe to receive in an interior thereof oil or gas from said reservoir; dividing said drainage pipe exteriorly thereof into longitudinally separate sections each receiving individually oil or gas pressure from said reservoir; providing each said separate section with at least one inflow restriction device communicating the exterior of said each section with said interior of said drainage pipe; and regulating the pressure profile along said drainage pipe by controlling individually the amount of flow of oil or gas from said reservoir through said at least one inflow restriction device of each said section. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A drainage pipe to be positioned directly within a horizontal well defined within an oil or gas reservoir for the production of oil or gas therefrom, said drainage pipe comprising:
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a pipe interior to receive oil or gas to be conveyed to a production pipe; exterior dividers dividing said drainage pipe exteriorly thereof into longitudinally separate sections each to receive individually oil or gas pressure from the reservoir; each said separate section of said drainage pipe having therein at least one regulatable inflow restriction device, extending from the exterior of said each section to said pipe interior, to control the amount of flow of oil or gas from the reservoir through said each section into said pipe interior, and thereby to regulate the pressure profile along said drainage pipe. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification