Frac plug setting method
A downhole tool includes a setting tool having an outer surface, an inner surface defining a passage and a terminal end. An actuator mechanism is arranged in the passage. A setting member is arranged at the terminal end in the passage. The setting member includes a side portion that is angled radially inwardly from a first end portion to a second end portion. A collet member extends over the setting member, and a seal member is operatively connected to the collet member at the second end portion of the setting member.
1. A method of setting a downhole seal comprising:
delivering a fluid force onto a setting member;
urging the setting member into a seal member;
pulling on an outer surface of the seal member with a setting tool; and
shifting the seal member along an angled surface of the setting member.
2. The method of claim 1 , wherein pulling on the outer surface includes applying a tensile force to the setting tool causing the outer surface of the setting tool to expand radially.
3. The method of claim 1 , wherein pulling on the outer surface of the seal member includes pulling on a collet including one or more collet fingers each with a radially inwardly directed member extending into a recess formed on an outer surface of the seal member.
4. The method of claim 3 , further comprising: disconnecting the one or more collet fingers from the seal member.
5. The method of claim 1 , further comprising: flowing a fluid about a plug member arranged in the setting member.
6. The method of claim 5 , wherein flowing the fluid about the plug member includes directing the fluid radially inwardly to a central channel formed in the setting tool.
7. The method of claim 5 , further comprising: dislodging the plug member to cut off flow through the setting member.
8. The method of claim 1 , further comprising: disconnecting the setting tool by breaking a frangible member connecting the setting tool to the seal member.
9. The method of claim 1 , wherein urging the setting member into the seal member includes delivering a metered flow of fluid into a rear portion of the setting member.
10. The method of claim 1 , wherein urging the setting member into the seal member includes delivering a flow of fluid onto a piston arranged adjacent to a rear portion of the setting member.