Stroker device
This inventions relates to a stroker device ( 1 ) for use in a borehole ( 2 ) in the ground. The stroker ( 1 ) comprises at least an actuator ( 6 ) arranged for displacing a tool ( 10 ) in a longitudinal direction of the borehole ( 2 ) and grippers ( 26 ) arranged to anchor the stroker ( 1 ) to the wall ( 36 ) of the borehole ( 2 ), alternatively to a pipe wall. The stroker ( 1 ) is provided with driving wheels ( 34 ) or driving belts for propulsion.
1. A system for deploying a stroker device for use in a borehole, the system comprising:
actuator means for displacing a tool in a longitudinal direction of the borehole;
gripping means for preventing displacement of the stroker device relative to a wall of the borehole;
propulsion means for driving the stroker device to an operation location, the propulsion means being mutually rotated approximately 90 degrees about the longitudinal axis of the stroker device;
hydraulic pressure fluid means for commonly supplying hydraulic pressure fluid to the actuator means, the gripper means and the propulsion means;
control means for commonly controlling at least the gripping means and the propulsion means simultaneously; and
power means for commonly supplying power to at least the gripping means and the propulsion means.
2. The stroker device according to claim 1 wherein displacement of the stroker device to the operation location does not require connecting a wireline tractor to the stroker device.
3. The stroker device according to claim 1 wherein the propulsion means for driving the stroker device includes driving wheels.
4. The stroker device according to claim 1 wherein the propulsion means for driving the stroker device includes driving belts.
5. A method of deploying a stroker device for use in a borehole, the method comprising the steps of:
displacing a tool in a longitudinal direction of the borehole using actuator means; for displacing the tool;
using gripper means for preventing displacement of the stroker device relative to a wall of the borehole;
using propulsion means for driving the stroker device to an operation location, the propulsion means being mutually rotated approximately 90 degrees about the longitudinal axis of the stroker device;
using hydraulic means for commonly supplying hydraulic pressure fluid to the actuator means, the gripping means and the propulsion means;
using control means for commonly controlling at least the gripping means and the propulsion means simultaneously; and
using power means for commonly supplying power to at least the gripping means and the propulsion means.
6. A method according to claim 5 wherein displacement of the stroker device to the operation location does not require connecting a wireline tractor to the stroker device.
7. The stroker device according to claim 5 wherein the propulsion means for driving the stroker device includes driving wheels.
8. The stroker device according to claim 5 wherein the propulsion means for driving the stroker device includes driving belts.