Set of tools type OT6 for cutting a rat hole in casing
APPLICATION:
The set is designed to mill a rat hole in casing and side tracking. A rig rotor or a power swiwel is used as a gear.
CONSTRUCTION:
A set consists of:
1. Whipstock with hydraulic packer is designed for deviation the cutting tools from axis of the main well bore during cutting a rat hole in casing. The whipstock construction allows when it's necessary to pull the whipstock out of the hole.
2. Starting mill is designed to cut a rat hole in casing and side tracking.
3. Watermelon mill is designed to widen walls in cut rat hole.
4. Flexible sub is designed to connect watermelon mill with assembly.
5. Retrieving hook is designed to pull the whipstock out of hole.
Features of the set:
- Setting on hydraulic packer, set with two mills.
- Orientation with GYRO or MWD.
- The mechanical anchor provides max tightness of the whipstock to the casing wall.
- Retrievable and Non-retrievable variants are available.
