초록 ▼

A gravel packing screen with an inflow control device and a bypass. A well screen includes a flow restricting device for restricting inward flow through the screen, and a bypass device for increasing a proportion of the inward flow which passes through the flow restricting device, the bypass device

A gravel packing screen with an inflow control device and a bypass. A well screen includes a flow restricting device for restricting inward flow through the screen, and a bypass device for increasing a proportion of the inward flow which passes through the flow restricting device, the bypass device including a material which swells in response to contact between the material and fluid in a well. A method of gravel packing a well includes installing a screen in the well, the screen including a flow restricting device which restricts flow through the screen, and a bypass device for selectively permitting relatively unrestricted flow through the screen; and actuating the bypass device in response to contact between a material of the bypass device and fluid in the well, thereby increasingly restricting flow through the screen. Flow through the flow restricting device and flow through the bypass device may be in parallel.

대표청구항 ▼

What is claimed is: 1. A method of gravel packing a well, the method comprising the steps of: installing a well screen in the well, the screen including a flow restricting device which restricts flow through the screen, and a bypass device for selectively permitting relatively unrestricted flow thr

What is claimed is: 1. A method of gravel packing a well, the method comprising the steps of: installing a well screen in the well, the screen including a flow restricting device which restricts flow through the screen, and a bypass device for selectively permitting relatively unrestricted flow through the screen; flowing gravel about the screen; and actuating the bypass device in response to contact between a material of the bypass device and fluid in the well, thereby increasingly restricting flow through the screen, and the actuating step further comprising forcing an increased proportion of inward flow through the screen to pass through the flow restricting device. 2. The method of claim 1, wherein the gravel flowing step is performed while the bypass device permits relatively unrestricted flow through the screen. 3. The method of claim 1, wherein the bypass device actuating step is performed after the gravel flowing step. 4. The method of claim 1, wherein the actuating step further comprises swelling the material in response to the contact between the fluid and the material. 5. The method of claim 4, wherein the swelling step further comprises restricting flow through at least one passage with the swollen material. 6. The method of claim 4, wherein the swelling step further comprises displacing a member with the swollen material. 7. A well system, comprising: a well screen including a flow restricting device for restricting flow through the screen, and a bypass device for varying a proportion of the flow which passes through the flow restricting device, the bypass device including a material which swells in response to contact between the material and fluid in the well; and a gravel pack about the screen, wherein the gravel pack is installed about the screen prior to the bypass device increasing the proportion of the flow which passes through the flow restricting device. 8. The well system of claim 7, wherein the bypass device includes at least one passage, the flow through the passage being increasingly restricted when the material swells. 9. The well system of claim 8, wherein the material restricts flow through the passage when the material swells. 10. The well system of claim 8, wherein the material displaces a member to thereby increasingly restrict flow through the passage when the material swells. 11. The well system of claim 8, wherein the bypass device includes a valve, and wherein the material is included in an actuator for the valve. 12. A method of gravel packing a well, the method comprising the steps of: installing a well screen in the well, the screen including a flow restricting device which restricts flow through the screen, and a bypass device for selectively permitting relatively unrestricted flow through the screen, flow through the flow restricting device and flow through the bypass device being in parallel; flowing gravel about the screen; and actuating the bypass device, thereby increasingly restricting flow through the screen, the actuating step further comprising forcing an increased proportion of inward flow through the screen to pass through the flow restricting device. 13. The method of claim 12, wherein the gravel flowing step is performed while the bypass device permits relatively unrestricted flow through the screen. 14. The method of claim 12, wherein the bypass device actuating step is performed after the gravel flowing step. 15. The method of claim 12, wherein the actuating step further comprises swelling a material in response to contact between the material and fluid in the well. 16. The method of claim 15, wherein the swelling step further comprises restricting flow through at least one passage with the swollen material. 17. The method of claim 15, wherein the swelling step further comprises displacing a member with the swollen material.