CAMTOP drop ball circulating sub for oil well drill stem testing. 5 inch, 10,000 psi, drop ball activated, H2S service. NACE MR0175. Quote sales@cposl.com.
CAMTOP Drop Ball Circulating Sub | 5 Inch | 10K PSI | DST Tools
£0.00
Description
CAMTOP Drop Ball Circulating Sub | 5 Inch | 10K PSI | DST Tools
5 inch (127.5 mm)
Product Overview
The CAMTOP Drop Ball Circulating Sub is a type of circulating valve used for oil well drill stem testing operations and fracturing operations.
Manufactured from high-strength alloy steel, this circulating sub is pin-by-box and activated by dropping a chrome steel ball. The ball lands on a sleeve, and as pressure increases, the pins in the sleeve are sheared. This causes the sleeve to move down and expose four ports in the side of the sub, diverting the fluid flow.
The drop ball mechanism provides a simple and reliable method for establishing circulation communication between the work string and the annulus during testing operations.
Product: Drop Ball Circulating Valve / Circulating Sub | Type: APR Tools | Size: 5 inch (127.5 mm) | OD: 127.5 mm (5″) | ID: 57 mm | Length: 827.5 mm (EUE BxP)
Product Image
CAMTOP Drop Ball Circulating Sub — 5 inch, 10,000 psi, alloy steel, drop ball activated circulating valve for drill stem testing
Key Features
- Drop Ball Activation: Activated by dropping a chrome steel ball that lands on a sleeve; pressure increase shears pins to open circulation ports
- Four Circulation Ports: Exposes four ports in the side of the sub to divert fluid flow when activated
- High Pressure Rating: Rated to 10,000 psi (70 MPa) working pressure with 132.3 MPa internal pressure strength
- Pin-by-Box Design: Standard pin-by-box configuration for easy integration into the work string
- H2S Sour Service: Compliant with NACE MR0175 for H2S-containing environments
- Versatile Application: Suitable for both drill stem testing and fracturing operations
- Alloy Steel Construction: Manufactured from high-strength alloy steel for reliable downhole performance
Technical Specifications
| Item | Specification |
|---|---|
| Product | Drop Ball Circulating Valve / Circulating Sub |
| Type | APR Tools |
| Size | 5 inch (127.5 mm) |
| OD | 127.5 mm (5″) |
| ID | 57 mm |
| Length | 827.5 mm (EUE BxP) |
| Working Pressure | 70 MPa (10,000 psi) |
| Tensile Strength | 2142 KN |
| Internal Pressure Strength | 132.3 MPa |
| External Pressure Strength | 142.9 MPa |
| Torque Strength | 61.4 KN.m |
| Working Temperature | -29C to +204C (-20F to +400F) |
| Service | H2S NACE MR0175 (Above 175F) |
| Connection Thread | 3-1/2″ IF BXP, 3-1/2″ EUE BXP |
| Application | Oil Well Downhole Testing Service |
Applications
- Cased hole drill stem testing (DST) operations
- Oil and gas well downhole testing service
- Formation testing and well completion operations
- Perforation and tubing string testing
- Circulation and fluid conditioning during well testing
- Sour-service (H2S) well testing environments
- High-pressure and high-temperature downhole conditions
Ordering Information
When requesting a quote, please specify the following parameters:
- Tool Size / OD: Required outside diameter (e.g., 5″, 3-7/8″)
- Working Pressure: Required pressure rating (5,000 / 10,000 / 15,000 psi)
- Connection Type: IF, EUE, CAS, or custom thread
- Service Environment: Standard or H2S / sour service
- Shear Pin Configuration: Required operating pressure values
- Rupture Disc Pressure Rating: (if applicable)
- Quantity Required: For pricing and delivery schedule
Why Choose CAMTOP
- Specialized manufacturer of oilfield drill stem testing (DST) tools
- High-strength alloy steel and Inconel construction with full material traceability
- Multiple sizes, pressure ratings, and connection types available
- NACE MR0175 compliance for H2S / sour service environments
- API / ISO quality management and inspection procedures
- Application engineering support for DST string integration
- Competitive pricing with fast delivery from China
Contact Us
For pricing, technical support, or to place an order, contact CAMTOP directly:
Email: sales@cposl.com
WhatsApp / Phone: +86 186 2172 3891
Address: Shanghai, China
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