Remotely operated ball drop and night cap removal device for wellhead pressure control apparatus

1. A method for conducting intervention operations on a wellbore, comprising:

disposing a combination well intervention apparatus proximate a pressure control apparatus coupled to the wellbore, the combination apparatus comprising at least a pressure control device adapter lockable in the pressure control apparatus and at least one other type of well intervention device coupled to the pressure control device adapter by a frame coupled to and laterally extending from the pressure control device adapter such that the pressure control device adapter and the at least one other type of well intervention apparatus is each selectably disposable over the pressure control apparatus by laterally moving the frame;

moving the frame laterally in a first direction to suspend the pressure control device adapter over the pressure control apparatus and locking the pressure control device adapter in the pressure control apparatus by operating a remotely operable locking device on the pressure control apparatus; and

moving the frame laterally in a different direction than the first direction so that the at least one other type of well intervention device is disposed over the pressure control apparatus.

2. The method of claim 1 further operating the at least one other type of well intervention device when disposed over the pressure control apparatus.

3. The method of claim 1 wherein the at least one other type of well intervention device comprises a remotely operable ball drop apparatus.

4. The method of claim 1 wherein the at least one other type of well intervention device comprises a pressure tight cap insertable into the pressure control apparatus.

5. The method of claim 1 further comprising at least two of another type of well intervention device coupled to the pressure control device adapter.

6. The method of claim 5 wherein the at least two of another type of well intervention device comprises one remotely operable ball drop apparatus and one pressure tight cap insertable into the pressure control apparatus.

7. The method of claim 5 wherein the at least two of another type of well intervention device comprises two remotely operable ball drop apparatus.

8. A device for use with a remotely operable pressure control apparatus, comprising:

a pressure control device adapter having features thereon for releasably locking the pressure control device adapter to the pressure control apparatus; and

at least a first well intervention apparatus and a second well intervention apparatus connected to the pressure control device adapter by a frame laterally extending from the pressure control device adapter, from the at least a first well intervention apparatus and from the second well intervention apparatus such that only a selected one of the first well intervention apparatus, the second well intervention apparatus and the pressure control device adapter is movable over the pressure control apparatus by laterally moving the frame with reference to the pressure control apparatus.

9. The device of claim 8 wherein the first well intervention apparatus and the second well intervention apparatus each comprise one of a first remotely operable ball drop apparatus and a night cap having a remotely operable latch connected to the pressure control device adapter laterally spaced apart therefrom such that the pressure control device adapter and the at least one of a remotely operable ball drop apparatus and a night cap having a remotely operable latch are selectively movable over an upper opening in the pressure control apparatus.

10. The device of claim 9 further comprising a second remotely operable ball drop apparatus connected to the pressure control device adapter.

11. The device of claim 9 wherein the ball drop apparatus comprises a housing having a remotely operable drop ball release device coupled to the housing, the remotely operable drop ball release device arranged to at least partially block the interior of the housing when in a deactivated state and when activated enables a drop ball to pass through the housing.

12. The device of claim 11 wherein the remotely operable drop ball release device comprises a fluid pressure actuated piston and a spring.

13. The device of claim 9 wherein the remotely operable latch on the night cap comprises a fluid pressure actuated piston arranged such that movement of the piston in a cylinder when fluid pressure is applied therein urges locking arms to pivot laterally inwardly so as to enable passage of the locking arms past a locking surface in a night cap adapter.