Produced hydrocarbons during a DST can be classed as proven reserves and added to reserve reports. Our DST report is a critical method of establishing reservoir characteristics, including:
Just as we tailor our services on your requirements and objectives, we also offer a range of standard and value-added reporting, including:
Applying our expertise and experience in testing, Northstar interprets the test data -- including Horner extrapolations and derivative plots -- and presents the results in an easy-to-read format. This service is especially useful to exploration firms with start-up operations that require additional guidance in determining their reservoir characteristics, and is provided at the conclusion of every drillstem test. Northstar Report! includes:
Northstar Analysis! is an advanced report that comprehensively examines factors beyond the scope of the Northstar Report!, such as skin damage, permeability, and anticipated production rates. Northstar Analysis! is available with all drillstem tests at no additional fee upon request.
Closed chamber testing enables the calculation of inflow fluid volume as a function of time by monitoring surface pressure. It also allows the measurement of the smallest flow rates with pinpoint accuracy, with flow rate and pressure data are calculated to 1 kPa.
These tests are conducted with the tool string in the hole and the surface valve closed to create a closed chamber of known volume. By eliminating flaring, a closed chamber test offers the additional benefits of added data security, minimized environmental impact, and safety.
To expedite the analysis process, Northstar offers a sampler drainage service. This includes the opening and draining of the sampler and delivery to a lab of the client's choice. This is an optional, additional service.