Dual cycle tool that can be configured for forward or reverse circulation
Dual Short Circulating Valve


The Dual Shot Circulating Valve is an annular rupture disc controlled Circulation Valve.

Forward circulation mode allows the tubing string to be displaced into the annulus by a lighter fluid creating a desired under-balance, or accurately spotting an acid pill. A check valve mechanism prevents back flow from the annulus.

The reverse circulation mode allows annular fluid to be pumped into the tubing string, and a check valve prevents back flow from the tubing. This mode has applications for auto-filling the string during run-in-hole with a ball valve as the tubing pressure test valve; and, as an emergency kill valve below the test valve. The first rupture disc cycle enables the tool’s function, and the second rupture disc cycle locks the tool for the remainder of the test.

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  • Drill stem testing
  • Tubing-conveyed while underbalanced


  • Fluid spotting
  • Well kill
  • Tubing pressure testing
  • Can be run in reverse or forward circulation

Competitor Comparable Tools

Competitor/Tool Name Model
Schlumberger Annulus Reclosable Circulating Valve ARCV-FEA
Schlumberger Slim ARCV-FEB

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