Whipstock setting arrangement, method, and system
A whipstock anchor system including a whipstock, an anchor attached to the whipstock, an actuator operably connected to the anchor, and a whipstock support connected by a signal capable line to the actuator, the support including a trigger responsive to a flow rate of fluid past the support. A method for setting a whipstock anchor including running the system to a target depth, flowing fluid to a threshold rate, closing the trigger to complete a circuit, sending a signal with the closed circuit to the actuator, and setting the anchor. A borehole system including a borehole in a subsurface formation, a string in the borehole, a whipstock anchor system disposed within or as a part of the string.
1. A whipstock anchor system comprising:
a whipstock;
an anchor attached to the whipstock;
an actuator operably connected to the anchor; and
a whipstock support connected by a signal capable line to the actuator, the support including a trigger comprising a sensor configured to measure a flow rate of fluid past the support, the trigger, when measuring a threshold flow rate, sending a signal to the actuator.
2. The system as claimed in claim 1 , wherein the support is in weight bearing connection to the whipstock before setting of the anchor.
3. The system as claimed in claim 1 , wherein the signal capable line is an electric line.
4. The system as claimed in claim 1 , wherein the trigger is a movable member disposed in the whipstock support.
5. The system as claimed in claim 4 , wherein the support is a mill.
6. The system as claimed in claim 1 , wherein the trigger is a piston.
7. The system as claimed in claim 1 , wherein responsive to fluid flow rate, the trigger completes a circuit and thereby generates a signal to the actuator.
8. The system as claimed in claim 1 , further including a power source on the support.
9. The system as claimed in claim 8 , wherein the power source is a battery.
10. The system as claimed in claim 1 , wherein the whipstock includes a setting biaser that stores potential energy and that is releasable by the actuator to set the anchor.
11. The system as claimed in claim 10 , wherein the biaser is a spring.
12. A method for setting a whipstock anchor comprising:
running the system as claimed in claim 1 to a target depth;
flowing fluid to a threshold rate;
closing the trigger to complete a circuit;
sending a signal with the closed circuit to the actuator; and
setting the anchor.
13. The method as claimed in claim 12 , wherein the setting the anchor includes releasing stored potential energy with the actuator.
14. The method as claimed in claim 12 , further including kinetically setting the anchor by driving a slip radially outwardly of the whipstock with the released potential energy of a biaser.
15. The method as claimed in claim 12 , wherein the closing the trigger is by moving a member with fluid flowing at the threshold rate.
16. The method as claimed in claim 15 , wherein the member is a piston.
17. The method as claimed in claim 12 , wherein the signal is electric.
18. A borehole system comprising:
a borehole in a subsurface formation;
a string in the borehole;
a whipstock anchor system as claimed in claim 1 disposed within or as a part of the string.
19. A whipstock anchor system comprising:
a whipstock;
an anchor attached to the whipstock;
an actuator operably connected to the anchor; and
a whipstock support connected by a signal capable line to the actuator, the support including a trigger responsive to a flow rate of fluid past the support, the trigger when experiencing a threshold flow rate sending a non-hydraulic signal to the actuator.