Interruptor sub, perforating gun having the same, and method of blocking ballistic transfer
AssigneeBaker Hughes Incorporated
InventorColby Ross
Life of this patent
Estimating the term…
Abstract
An interruption sub for a downhole tool the downhole tool activatable by detonation. The interruption sub includes a barrier movable between a biased closed position and an open position. Preventing ballistic transfer to the downhole tool in the closed position and allowing ballistic transfer to the downhole tool in the open position. A detonation path within the interruption sub, wherein the barrier is hydraulically or electronically movable from the closed position to the open position in response to at least one condition acceptable for ballistic transfer. Also included is a downhole tool activatable by detonation.
Claims22
An interruption sub for a downhole tool, the downhole tool activatable by detonation, the interruption sub comprising:
- a detonation path within the interruption sub;
- a barrier rotatable between a biased closed position and an open position, and preventing ballistic transfer to the downhole tool in the closed position by blocking the detonation path, and allowing ballistic transfer to the downhole tool in the open position by unblocking the detonation path;
- and,
- a longitudinally movable control arm engageable with the barrier, the control arm biased away from a first end of the interruption sub to retain the barrier in the biased closed position;
- wherein the control arm is hydraulically or electromechanically longitudinally activatable to move towards the first end of the interruption sub and towards the barrier to rotate the barrier against its bias to the open position in response to at least one condition acceptable for ballistic transfer.
A downhole tool activatable by detonation, the downhole tool comprising:
- an explosive member;
- a detonation member;
- and,
- an interruption sub disposed between the explosive member and the detonation member, the interruption sub including:
- a detonation path within the interruption sub;
- a barrier rotatable between a biased closed position and an open position, and preventing ballistic transfer to the detonation member in the closed position by blocking the detonation path, and allowing ballistic transfer to the detonation member in the open position by unblocking the detonation path;
- and,
- a longitudinally movable control arm engageable with the barrier, the control arm biased away from a first end of the interruption sub to retain the barrier in the biased closed position;
- wherein the control arm is hydraulically or electromechanically longitudinally activatable to move towards the first end of the interruption sub and towards the barrier to rotate the barrier against its bias to the open position in response to at least one condition acceptable for ballistic transfer.
Dependencies are inferred from the claim text.