Ball-Drop Cemented Initiation Sub

Overview

Tartan’s Ball-Drop Cemented Initiation Sub (Ball-Drop CIS) is a modification of Tartan’s successful patented Cemented Initiation Sub. The Ball-Drop CIS incorporates a ball seat just above the standard BurstPoint™ ports. After the cement job is complete and communication is re-established, the ball seat gives the customer the ability to test the liner pressure integrity by dropping a dissolvable ball from surface.

Application

• Simple, reliable and rugged design for cemented liner installations
• Provides ability to pressure test the liner prior to stimulation operations
• Eliminates coiled tubing and perforating costs for first stage initiation in plug-and-perf operations
• Can also be used as a flow path to initiate Tartan’s cemented MultiFrac™ or EnerFrac™ ball-drop systems
• Can pump full stimulation treatment through BurstPoint ports for first stage stimulation after ball dissolves

Features and benefits

• Provides increased operational efficiency resulting in reduced costs
• BurstPoint ports within the CIS can be sized to control the stimulation fluid rate
• Full drift inside diameter (ID) – no drill out required
• No special cementing procedures required
• Surface pressure indication is an accurate monitor of BurstPoint port opening
• Industry-proven dissolvable ball

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