Hydraulic Circulation Valve for Drill Stem Testing - 105 MPa Working Pressure, 127.5 mm OD, 2312 mm Length
Price:
Negotiable
MOQ:
1 set
Delivery Time:
30-45 days
Brand:
Techcore
Product Description
Hydraulic Circulation Valve for Drill Stem Testing
Product Overview
The Hydraulic Circulation Valve is a specialized tool designed for drill stem testing operations, serving as either a bypass around the packer or as a circulating valve to circulate wells after testing completion.
Key Features & Benefits
- Full-opening bore permits unrestricted passage of wireline tools
- Operation requires no pipe rotation for simplified functionality
- Hydraulic metering system provides controlled 2-3 minute delay in closing
- Latching piston adds downward force during stimulation to maintain valve closure
Operational Mechanism
Bypass ports automatically close when weight is set down and reopen when weight is lifted. The hydraulic metering system ensures proper timing for packer setting or test string insertion before port closure. During stimulation work, the latching mechanism provides additional closure security without requiring torque application.
Technical Specifications
| Specification | 5" Model |
|---|---|
| Outside Diameter (OD) | 127.5 mm |
| Inside Diameter (ID) | 57 mm |
| Length | 2312 mm |
| Working Pressure | 105 MPa |
| Tensile Strength (Yield) | 1459 kN |
| Internal Yield Pressure (Bursting) | 105 MPa |
| External Yield Pressure (Collapse) | 139 MPa |
| Torque Strength | 22 kN·m |
| Service Environment | Mud, Crude Oil, Natural gas NACE MR0175 (>175°F) |
| Service Temperature | -29°C to +204°C |
| End Connections | 3 7/8 CAS, 3 1/2" IF |
Safety Instructions & HSE Compliance
During pressure testing, gradually increase pressure to 20MPa and hold for one minute, then increment by 10MPa with one-minute holds until reaching rating pressure. Always place tools in test pits with protective boards covering pressure test plugs. Maintain safe distance from plugs and joints during testing. Establish isolation zones and restrict access to authorized personnel only.
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Company
Techcore Oil Tools Co.,Ltd,
Location
No.25th Gaoxin6th Road, Xi'an, China
Contact Person
LEE