Method for well production
Patent
·
OSTI ID:6939387
This patent describes the method for operating a well installation having a control valve regulating the flow of fluid hydrocarbon from a well tubing string to a sales line which is selectively actuated between an on-state and an off-state, and wherein a plunger is located within the the tubing string of the well for movement between a lower region and a wellhead sensing position, it comprises: assigning first values; assigning second values; assigning a predetermined value for the time interval of the on-state; assigning a predetermined value for time interval of the off-state; actuating the control value to transition from an off-state to an on-state; then detecting the arrival of the plunger at the wellhead prior to expiration of the predetermined value for the time interval of the on-state, and determining the time elapsed from the actuation; determining the presence of any coincidence of the time elapsed from the actuation of the control valve with the assigned second values; then increasing the predetermined value for the time interval of the off-state by a predetermined first time increment when a the coincidence with the assigned second value is present; and terminating the the on-state in response to the plunger detection, and actuating the control valve to transition from the on-state to the next off-state in response to the termination of the on-state.
- Assignee:
- Delaware Capital Formation, Inc., Wilmington, DE (United States)
- Patent Number(s):
- US 5146991; A
- Application Number:
- PPN: US 7-684162
- OSTI ID:
- 6939387
- Country of Publication:
- United States
- Language:
- English
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