Hydraulically actuated, coiled tubing stimulation system providing 360° reservoir access.
Interra Energy's StrataJet™ multistage system uses pressure activated sleeves that are opened in conjunction with our AccuStim™ coiled tubing straddle packer, which is also used to deliver the stimulation treatment to each stage.
The unique design of the StrataJet system provides operators with a full inside diameter (ID) tool capable of unlimited stages. Once activated, the tool offers 360° reservoir access and 100% flow area in cemented or open hole well environments.
Features and Advantages
- Unlimited stimulation stages
- Unrestricted full ID wellbore
- Provides limitless remediation and restimulation possibilities
- Does not require drill out, saving money
- Pressure-activated sleeves do not require mechanical manipulation by a shifting tool
- Coiled tubing circulation enables ease of wellbore cleanout and movement of tools to next stage
- Phased port configuration provides 360° reservoir access
- 100% flow area reduces friction during stimulation
- Specially designed cement/debris sealing system ensures reliable tool activation
- Can be run in cemented or open hole completion designs
- Does not require pup joints
The StrataJet multistage system is installed as part of the casing string during the completion process. The tools are spaced within the wellbore based on client requirements to effectively target the reservoir.
Interra Energy's AccuStim straddle packer is then deployed on coiled tubing (or jointed pipe) to isolate and stimulate each stage within the wellbore. With the isolation tool positioned across the first StrataJet sleeve, hydraulic pressure applied down the coiled tubing (or jointed pipe) activates the sleeve to open, providing reservoir access.
The stimulation treatment is then pumped through the coiled tubing (or jointed pipe). The process is repeated for subsequent stages to efficiently stimulate the wellbore in a single tool deployment.
Common issues experienced with competing systems
- High water usage
- Associated costs:
- Increased sand production
- Plugging of formation pore throats
- Increased safety risk
- Formation and cementing integrity damage
- Perforating debris
- Additional runs required
- Logistically complex