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A system and method for controlling inflow of fluid into a production string. In aspects, the invention provides a downhole sand screen and inflow control device with a gas or water shut-off feature that can be operated mechanically or hydraulically from the surface of the well. The device also pref

A system and method for controlling inflow of fluid into a production string. In aspects, the invention provides a downhole sand screen and inflow control device with a gas or water shut-off feature that can be operated mechanically or hydraulically from the surface of the well. The device also preferably includes a bypass feature that allows the inflow control device to be closed or bypassed via shifting of a sleeve. In embodiments, the flow control device can be adaptive to changes in wellbore conditions such as chemical make-up, fluid density and temperature. Exemplary adaptive inflow control devices include devices configured to control flow in response to changes in gas/oil ratio, water/oil ratio, fluid density and/or the operating temperature of the inflow control device. In other aspects of the present invention, inflow control devices are utilized to control the flow of commingled fluids drained via two or more wellbores.

대표청구항 ▼

What is claimed is: 1. A method of selectively controlling fluid flow in a main wellbore drilled in a formation, comprising: drilling a secondary wellbore adjacent to a main wellbore such that fluid produced from the secondary wellbore commingles with the fluid in the main wellbore, wherein the sec

What is claimed is: 1. A method of selectively controlling fluid flow in a main wellbore drilled in a formation, comprising: drilling a secondary wellbore adjacent to a main wellbore such that fluid produced from the secondary wellbore commingles with the fluid in the main wellbore, wherein the secondary wellbore does not intersect the main wellbore; positioning an in-flow control device in a main wellbore; and controlling the flow of the commingled fluid in the main wellbore with the in-flow control device. 2. The method of claim 1 further comprising positioning a plurality of in-flow control devices along the main wellbore. 3. The method of claim 1 further comprising positioning at least one in-flow control device in the secondary wellbore. 4. The method of claim 1 further comprising configuring the in-flow control device to control flow based on a nature of the commingled fluid. 5. The method of claim 1 further comprising configuring the in-flow control device to control flow based on a water cut of the commingled fluid. 6. The method of claim 1 further comprising configuring the in-flow control device to be sensitive to a density of the commingled fluid. 7. The method of claim 1 wherein the secondary well has a trajectory selected to direct a fluid to the main wellbore. 8. The method of claim 1 further comprising draining a formation using the secondary wellbore. 9. A method of selectively controlling fluid flow in a main wellbore drilled in a formation, comprising: positioning an in-flow control device in a main wellbore, wherein a secondary wellbore that does not intersect the main wellbore produces a fluid that commingles with the fluid in the main wellbore, the in-flow control device being configured to control the flow of the commingled fluid. 10. The method of claim 9 further comprising positioning a plurality of in-flow control devices along the main wellbore. 11. The method of claim 9 further comprising positioning at least one in-flow control device in the secondary wellbore. 12. The method of claim 9 further comprising configuring the in-flow control device to control flow based on a nature of the commingled fluid. 13. The method of claim 9 further comprising configuring the in-flow control device to control flow based on a water cut of the commingled fluid. 14. The method of claim 9 further comprising configuring the in-flow control device to be sensitive to a density of the commingled fluid. 15. The method of claim 9 wherein the secondary well has a trajectory selected to direct a fluid to the main wellbore. 16. The method of claim 9 further comprising draining a formation using the secondary wellbore. 17. A method of selectively controlling fluid flow in a main wellbore, comprising: drilling a secondary wellbore that is adjacent to but does not intersect the main wellbore; producing a fluid from the secondary wellbore that commingles with the fluid in the main wellbore; and controlling the flow of the commingled fluid in the main wellbore with an in-flow control device. 18. The method of claim 17 wherein the in-flow control device is configured to control flow based on a nature of the commingled fluid. 19. The method of claim 17 wherein the in-flow control device is configured to control flow based on a water cut of the commingled fluid. 20. The method of claim 17 wherein the in-flow control device is configured to be sensitive to a density of the commingled fluid. 21. The method of claim 17 wherein the secondary well has a trajectory selected to direct fluid to the main wellbore. 22. The method of claim 17 further comprising draining a formation using the secondary wellbore.