Product Overview
Our dual action circulation valve is a ball-actuated downhole circulation control tool designed for coiled tubing well intervention, cementing, fracturing and cleanout operations. The valve has two operating modes: when a ball is dropped and seated, applied pressure shifts the valve to open circulation ports that bypass the lower BHA; when required, a second ball or reverse pressure closes the ports and re-establishes normal circulation through the tool string. This dual-action functionality allows operators to establish reverse circulation, spot treatment fluids at specific depths, or isolate the BHA without multiple round trips. Precision machined from high-strength alloy steel with hardened seat and ball sealing surfaces for reliable operation after repeated actuation cycles. Multi-stage sealing ensures positive shut-off in both open and closed positions. NACE MR0175 / ISO 15156 compliant material options available for H₂S and CO₂ service.
Core Features & Benefits
- Ball-actuated open and close mechanism for reliable downhole circulation control
- Dual action mode: opens circulation ports with drop ball, closes with second ball or reverse pressure
- Allows bypass circulation to spot fluids or clean out above BHA without tripping
- Hardened ball seat and sealing surfaces for dependable operation after multiple cycles
- Full bore ID in closed position allows unrestricted passage of wireline tools and balls
- Forged alloy steel body with anti-corrosion surface treatment
- NACE MR0175 / ISO 15156 sour service material options available
- Custom ball sizes, thread connections and pressure ratings available
Technical Specifications
| Model No. | Tool OD | Bore ID | Connection | Length | Ball Size | Max Working Pressure | Operating Temp |
|---|---|---|---|---|---|---|---|
| DCV-150 | 1.687" | 0.625" | 1" AMMT | 18" | 0.500" | 10,000 PSI | 0°F~350°F |
| DCV-175 | 1.750" | 0.750" | 1" AMMT | 20" | 0.625" | 10,000 PSI | 0°F~350°F |
| DCV-200 | 2.250" | 1.000" | 1 1/2" AMMT | 24" | 0.875" | 10,000 PSI | 0°F~350°F |
| DCV-250 | 2.875" | 1.250" | 2 3/8" PAC | 28" | 1.125" | 10,000 PSI | 0°F~350°F |
Note: Custom ball size, thread types and material grades available upon request.
Typical Applications
- Coiled tubing cementing operations requiring bypass circulation above the BHA
- Well cleanout and sand washing with reverse circulation capability
- Acidizing and fracturing operations requiring selective fluid placement
- Plug and packer setting operations with circulation isolation
- Sour well intervention requiring H₂S resistant circulation control
- Deep well workover with multiple treatment fluid spotting stages
Advantages Over Standard Circulation Subs
- Dual-action ball actuation enables both open and close functionality with the same simple ball-drop operation
- Eliminates need for separate circulation sub and closing sub, reducing BHA connection points
- Positive shut-off sealing in both positions prevents unwanted fluid migration
- Full bore ID in normal operating position minimizes flow restriction during pumping
- Field-proven reliability in thousands of coiled tubing intervention jobs worldwide
FAQ
Q: How does the dual action circulation valve work?
A: Dropping a ball and applying pressure opens the circulation ports. A second ball or reverse pressure closes the ports and restores normal circulation.
Q: Can the valve be actuated multiple times in one run?
A: Yes, the valve is designed for multiple open/close cycles within a single trip.
Q: What sizes are available?
A: Standard tool OD from 1.687" to 2.875". Custom sizes and thread connections available.
Q: Is a sour service version available?
A: Yes, NACE MR0175 compliant materials are available for H₂S service.
Get Custom Datasheet & Factory Quote
We manufacture full series downhole circulation tools with rigorous quality control and complete certification. Contact us with your requirements for detailed datasheet and competitive quotation.
