Techcore Oil Tools Co.,Ltd,
                                                                                                           
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12 Years
Since 2014
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5-inch Lock Open Tester Valve with 105 MPa Working Pressure for H2S Well Testing and Perforating Operations

Price Negotiable
Price: Negotiable
MOQ: 1 set
Delivery Time: 30-45 days
Brand: Techcore
Product Description
Lock Open Tester Valve Overview
The Lock Open Tester Valve is a full bore tester valve operated by annulus pressure control. Designed for cased hole testing and perforating operations, this valve enables multiple cycles while maintaining full annulus pressure balance. The valve remains securely closed during tripping operations.
Technical Specifications
Tool Size (in) OD (mm) ID (mm) Working Pressure (MPa) Service Environment Working Temperature Connection
5" 127.5 57 105 Mud, Crude Oil, Natural gas with H2S and acid -29°C to +204°C EUE IF CAS
Applications
• Alloy steel construction for standard well testing operations, compliant with NACE MR0175 for H2S environments above 175°F
• Inconel steel construction for full H2S well testing operations
• Tubing perforating operations
• Well flow testing operations
Operation Principle
The lock open tester valve features a spring-loaded normally closed ball valve design. Spring force maintains the closed position, while applied annulus pressure opens and locks the valve open. Upon pressure release, the ball valve closes automatically. Hydrostatic pressure fluid is contained behind a nitrogen chamber, compressing nitrogen to match hydrostatic pressure. This balanced pressure system operates through upper and lower pistons with equal cross-sectional areas, ensuring valve stability.
Quality Assurance
Techcore maintains complete traceability for all drill stem testing tools and DST components from raw materials to finished products, meeting both onshore and offshore industry standards. All raw materials undergo third-party testing by SGS laboratories, ensuring material quality and component traceability.
Tool Applications
Drill stem testing tools are deployed in cased hole, open hole, and slim hole environments. Primary DST tool strings include RTTS packer, circulating valve, safety joint, select tester valve, omni valve, hydraulic jar, shock absorber, RD safety circulating valve, high pressure retrievable packer with bypass, IPO valve, and tubing string test valve.
Drill stem testing tools and DST components for oil well operations SGS testing and quality control process for DST tool components
We approach every client inquiry with meticulous attention to technical specifications and understanding of operational urgency. Contact us for detailed product information and technical support.

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Company Techcore Oil Tools Co.,Ltd,
Location No.25th Gaoxin6th Road, Xi'an, China
Contact Person LEE

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