BirdDog Version 4.0

BirdDog™ Information Systems is pleased to announce the release of Version 4.0 of Remote Data Retrieval. This newest system, to which you automatically have access when you log into our host site, provides enhanced features that are certain to make you even more productive... such as a more streamlined and intuitive user interface, the ability for end-users to perform ad hoc changes to alarm settings, and layered administration. With layered administration, end-user organizations can assign BirdDog client administrators who, in turn, will be able to add/delete other enterprise users, set each user's rights (from read-only through full editing, including use of Demand Polling), reset user passwords, add/delete Morning Report recipients, and much more.

In addition to the BirdDog Remote Data Retrieval system functional enhancements, we've also deployed new security provisions to further complement our previously implemented use of an HTTPS website to provide full SSL encryption of your sensitive and proprietary information. These enhancements include the use of unique email addresses as User IDs, as well as stronger Password requirements with history restrictions and forced routine changes. As before, with just a single account User ID and Password, your log-in will provide direct access to all BirdDog SaaS (Software-as-a-Service) systems to which you have end-user rights. And as you add or remove systems from your user profile, the single sign-on process will automatically recognize those changes.

BirdDog Security Policy Change Alert

Security Policy Change Alert - For the enhanced security of BirdDog™ Information Systems users, effective November 11, 2013, User IDs will be unique email addresses and account password requirements will be strengthened. New passwords will need to be at least 8 characters in length and contain at least one each of the following characters: uppercase alphabetical; lowercase alphabetical; numeric; and “special” (such as @, &, _, #, etc.). At the appropriate time, you will be prompted during your BirdDog log-in to click on a webpage link that will provide more details and guide you through your password change process.

BirdDog System Support

  • Log-in and system support, including password resets, are available to customers on a 24x7 basis by calling, toll-free, 800-231-9741. During business hours (8:00 a.m. until 5:00 p.m. Central Time, Monday through Friday), your call will be directed to the appropriate technical support or customer service team member.

  • During non-business hours, callers will be presented with a main menu which includes an option to reach system support and, if appropriate, to mark your message as “urgent” for an expedited response. Non-urgent support calls will be returned the next business day.

  • System support requests or questions may also be submitted via e-mail to

Coastal Flow Measurement Companies
Proving the Value of Quality
Service Since 1974


Validating Online Gas Chromatographs
Date: 4/23/2019

Gas chromatographs (GCs) are widely used in the oil and gas industry for determining the component makeup of a gas sample. For high volume or custody transfer stations where an even greater level of precision is necessary, continuous "live" analysis of the flowing gas stream via online GCs is often preferred over spot and composite sampling. However, without a reliable routine for validating the results and preserving accuracy, online GCs can have a negative impact on measurement.
Validation of online GCs typically means verifying that the device is properly calibrated for measuring the molecular content of the gas stream. Generally, there are three steps to ensure that GCs are operating with acceptable accuracy:
  • Monitor and track the GC response factors;
  • Confirm that the calibration standard is representative; and
  • Verify the GC by analyzing the calibration standard. 
Tracking response factors over time aids in identifying GCs in need of recalibration. A change in response factor may require altering a GC’s mechanisms (e.g., valve event timing) to maintain accuracy. GPA-2198, an industry standard, recommends that fidelity plots be used for monitoring response factors.
Confirming that GC calibration standards are representative is also a critical step. Calibration (CAL) standards have a known component mixture that can be analyzed to determine the accuracy of GCs. Initially, a new CAL standard should be verified in accordance with GPA-2198. Afterwards, control charts should be used to ensure that CAL standards are not changing over time. Control charts, like fidelity plots, are covered in GPA-2198. Analyzing CAL standards also helps to affirm that the component concentration data produced by the GC is within the precision limits of GPA-2261, the industry standard for natural gas analysis by chromatography which includes acceptable repeatability and reproducibility criteria.
Best practices generally incorporate comparing spot samples pulled concurrently from the meter tube and at the online GC. For proper sampling, refer to API MPMS 14.1 (Manual of Petroleum Measurement Standards, Chapter 14 — Natural Gas Fluids Measurement, Section 1: Collecting and Handling of Natural Gas Samples for Custody Transfer). It’s also prudent to analyze the data path from the online GC to the flow computer, to verify that the flow computer has been receiving, processing, and logging accurate information from the online GC.
Following these guidelines will help ensure that online GCs are functioning properly and providing the measurement accuracy that’s appropriate for its deployment.
"If I have seen further than others, it is by standing on the shoulders of giants."
~ Sir Isaac Newton, English mathematician, physicist, astronomer, theologian, and author

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Coastal Flow Measurement, Inc.
P.O. Box 58965 , Houston, TX, 77258-8965
Phone: 281.282.0622; Fax: 281.282.0792