Self Calibrating Cycle Open Toe Valve
TCO Self Calibrating Cycle Open Toe Valve eliminates the need for tubing conveyed perforation of the toe stage and enables a full pressure casing test without a time limit. The intervention less activation is controlled by pressure cycles at surface. After a predetermined number of cycles, the valve activates allowing infectivity into the formation.
The self-calibrating feature eliminates the need to change burst values based on depths and pressures. Multiple valves may be placed and opened simultaneously to act as a frac stage or independently to avoid pressuring out due to debris. The toe valves may be used in both cemented and open hole completions.
Technical Specifications
- No time limit on casing pressure test
- Torque through mandrel
- Tested to over 15,000 psi burst at temperature
- Multiple valves can be placed to simulate 1st stage frac clusters
- Redundant opening mechanisms
- Cemented and open hole completions
- Activation with pressure on the casing improves connectivity to payzone compared to opening on release of surface pressure
- independent of TVD or formation pressures
|
Inner Diameter |
Outer Diameter |
Temperature Rating |
Injection Port Flow Area |
Burst/ Collapse |
|---|---|---|---|---|
|
4” |
7” |
350 F |
13.26 in2 |
15,000 psi/ 10,000 psi |
Example activation sequence