COQA Logo

Crude Oil Quality Association

August, 2002
The Crude Oil Quality Association
Recent Accomplishments and Ongoing Projects

  • The Light Louisiana Sweet common stream on the Capline transportation system has specifications encompassing API gravity, sulfur, vanadium and nickel, microcarbon residue and distillation points.
  • A survey on crude oil quality was commissioned and received responses from companies accounting for over half of the U.S. domestic refining capacity. That survey indicated that the majority of refiners believe crude oil quality is extremely or very important to their business and will become even more so in upcoming years.
  • Considerable analysis has been done on the West Texas/New Mexico Sweet and West Texas/New Mexico Sour common streams on the Basin pipeline system. Recommendations on specifications for these two crudes have been established. Again, the parameters suggested encompass much more than sulfur and gravity. These parameters are being presented to all parties in the mid-continent area to ensure widespread cooperation and acceptance.
  • A position paper on water measurement was authored , widely disseminated and is now posted on coqa-inc.org
  • A task force was established to facilitate implementation of best water measurement practices in the industry
  • The COQA survey on the effects of additives on refining and pipeline operations found that communication between refiners, pipes, and producers can mitigate many problems, many refineries share the same issues and that health, safety and environmental matters are of primary concern.
  • The COQA provides ongoing forum for producer/refiner issues such as the use of methanol as a hydrate inhibitor in crude oil production
  • Basin Pipeline has instituted gravity and sulfur specifications, using the COQA as a forum for support and acceptance
  • The COQA is actively pursuing support form basin connecting carriers for implementation of those specifications throughout the entire Mid-Continent system.
  • The COQA is garnering advocates for expanded parameters on the Basin system.
  • The COQA disbanded its Crude Oil Round Robin after three successful years. Participants were urged to continue crude quality control with the ASTM CrossCheck, established in September, 2000.
  • coqa-inc.org contains a full membership list, index of prior discussions, historical minutes, up to date information on upcoming meetings and our mission statement. There is also a methodology to post current quality questions and issues.
  • We established a forum to discuss crude oil quality and the necessity of contractually requiring specifications.

September, 2001
Crude Oil Quality Association
Recent Accomplishments and Ongoing Projects

  • Position paper on water measurement
  • Survey on the effects of additives on refining and pipeline operations
  • Provided ongoing forum for the use of methanol as a hydrate inhibitor in crude oil production
  • Basin Pipeline has instituted gravity and sulfur specifications, using the COQA as a forum for support and acceptance
  • The COQA disbanded its Crude Oil Round Robin after three successful years. Participants were urged to continue crude quality control with the ASTM Cross Check, established in September, 2000.
  • coqa-inc.org contains a full membership list, index of prior discussions, historical minutes, up to date information on upcoming meetings and our mission statement.

    April, 1999
    Crude Oil Quality Association
    Five Year Review
  • The Crude Oil Quality Association has played an active role in maintaining the integrity of the domestic crude oil supply for five years now. We have 75 member companies representing all areas of the oil industry including refiners, pipelines, supporting entities such as laboratories and inspectors, and other industry organizations. Many of our pipeline members are active, committed participants proving that awareness of quality concerns has spread well beyond the refinery gate. We meet approximately three times per year to exchange ideas and pass along quality information.

    The COQA has sponsored several successful endeavors in keeping with our Mission Statement:

    • The Light Louisiana Sweet common stream on the Capline transportation system has specifications encompassing API gravity, sulfur, vanadium and nickel, microcarbon residue and distillation points. To the best of our knowledge, this is the first time common stream crude oil specifications have ever embraced parameters in addition to sulfur and gravity. An enforcement policy is in place to ensure the LLS specifications are met.
    • Considerable analysis has been done on the West Texas/New Mexico Sweet and West Texas/New Mexico Sour common streams on the Basin pipeline system. Recommendations on specifications for these two crudes have been established. Again, the parameters suggested encompass much more than sulfur and gravity. These parameters are being presented to all parties in the mid-continent area to ensure widespread cooperation and acceptance.
    • A Laboratory Round Robin for crude oil was established under the auspices of the COQA and attracts over 40 responders each quarter. The Round Robin Subcommittee provides a forum for assessing new technology.
    • A Water Measurement Discussion Group was initiated to explore issues such as differing test methodologies and varying test accuracy. This discussion group is working on a position paper for our members that will outline the test methods and evaluate the ramifications of each.
    • A survey on crude oil quality was commissioned and received responses from companies accounting for over half of the U.S. domestic refining capacity. That survey indicated that the majority of refiners believe crude oil quality is extremely or very important to their business and will become even more so in the next five years.