Voltage controlled hydraulic setting tool
Patent
·
OSTI ID:6180156
A method is described of setting a downhole device comprising steps of: conveying on a wireline a setting tool coupled to a downhole device from a surface into a well hole, the setting tool including an electric motor coupled to a hydraulic pump, the motor running at a speed determined by a signal applied to the motor, the output displacement of the hydraulic pump being determined by the speed of the motor, and the setting tool having a stroke determined by the volume of hydraulic fluid displaced by the hydraulic pump; and actuating the tool to create a desired setting action to set the downhole device in the well, the setting action having a predetermined stroke rate, the step of actuating the tool including a step of sending a predetermined signal for a predetermined time to the motor on the wireline from the surface, the signal operating the motor at a predetermined speed and thereby driving the pump at a predetermined displacement rate.
- Assignee:
- Dresser Industries, Inc., Dallas, TX (United States)
- Patent Number(s):
- A; US 5240077
- Application Number:
- PPN: US 7-900613
- OSTI ID:
- 6180156
- Country of Publication:
- United States
- Language:
- English
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