2.375" Valve
1.75" OD
3.50" Valve
2.50" OD
4.50" Valve
3.50" OD
7.00" Valve
5.00" OD
Universal Drive
High torque.
Equalizing Crossover
Kobe knockout
3.5" Injection Valve
2.5" OD
- Patented Downhole Shut-In Valve (US Patent #7823633)
- Repeatable Open/Close Operation
- 10,000 psi Differential Pressure
- 150°C and 177°C Drive Options
- 2-3/8” to 2-7/8” Valve — 1.135 in² Flow Area
- 3-1/2” and Larger Valve — 2.50 in² Flow Area
A downhole shut-in tool allows the wellbore to be shut in at depth rather than at surface. Shutting in close to the producing formation minimizes wellbore storage effects caused by the volume of production tubing that would otherwise need to be pressurized before formation pressure buildup can be accurately measured.
By reducing these effects, the DataCan Downhole Shut-In Tool enables faster pressure buildup response and improves the quality of pressure transient data. This can reduce test time while providing reservoir engineers with higher-quality data for reservoir evaluation.
Quick Valve Closure
DataCan’s patented valve design provides fast downhole shut-in, minimizing the transition between flowing and shut-in conditions. This produces a cleaner pressure buildup response and helps maximize the quality of the recorded pressure data.
Repeatable Valve Operation
The valve can be reopened and closed as required during a downhole test program. This capability supports applications such as three- and four-point isochronal testing, where multiple drawdown and buildup periods may be required during a single deployment. DataCan’s production and injection valve designs are patented in the United States and Canada.
High Temperature Operation
DataCan’s motor and control system has operated successfully in a producing 151°C gas condensate well, demonstrating the capability of the system in demanding high-temperature environments. Drive options are available for applications requiring operation at temperatures up to 150°C and 177°C.
Shock Resistance
The DataCan Downhole Shut-In Tool is designed for demanding downhole environments. Because shut-in tools are commonly installed below locks or plugs, the valve and drive section are engineered to withstand the mechanical shock and loading associated with deployment and downhole operations.
Drawdown and buildup tests are commonly performed on production and injection wells to evaluate and monitor reservoir performance. A typical test assembly includes a downhole shut-in valve and one or more pressure recording gauges positioned below the valve.
During testing, the formation is allowed to flow for a sufficient period to achieve the desired drawdown. The valve is then closed downhole and the formation pressure is recorded as it builds toward equilibrium. The valve can subsequently be reopened to begin another drawdown period, allowing additional pressure transient data to be collected during the same deployment.
Two common valve sizes are available. A 1.75” OD valve is typically used with 2-3/8” and 2-7/8” tubing, while a 2.5” OD valve is used with 3-1/2” and larger tubing. An important consideration when configuring the downhole assembly is the connection between the valve and the lock mandrel.
A typical assembly consists of the lock mandrel, an equalizing crossover, the DataCan valve, and memory pressure gauges installed below the valve. The connection between the valve and lock mandrel typically incorporates a mechanical equalizing system, such as a sliding sleeve or Kobe knockout configuration. DataCan recommends the Kobe knockout configuration.
The exact size and type of lock mandrel should be identified when configuring the assembly because the mechanical equalizing crossover is matched to the specific lock mandrel. Common lock mandrel styles include Otis and Baker designs, with configurations available for a range of equalizing sub diameters.
DataCan can also manufacture a custom equalizing sub integrated directly into the top of the valve housing. This integrated design simplifies the downhole assembly and eliminates at least one potential leak path compared with a separate crossover arrangement. For this reason, DataCan recommends an integrated mechanical equalizing sub where the application allows.
References:
DataCan Accreditations
Certified to the highest international standards in Quality, Safety, and Environmental Management — our commitment to excellence, in every detail.
ISO 9001:2015
Quality Management Systems
ISO 14001:2015
Environmental Management Systems
ISO 45001:2018
OH&S Management Systems