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Established in 1961, Stratagraph is one of the pioneers in the mud logging industry. For over fifty years we have consistently improved our capabilities to monitor, record, and display drilling functions.



During this time we have logged over six thousand wells in the Gulf of Mexico, on land and abroad. Our experienced mud loggers have a combined knowledge that is unsurpassed.



We also have extensive experience with deep water wells, as well as the difficult Norphlet Formation in Mobile Bay. We have logged hundreds of wells in the Cotton Valley and Hosston formation over the past 20 years, as well as specialized air drilling in coal-bed methane.

Original article by Larry Miller, VP of Exploration & Business Development, Peregrine Petroleum.


   Mud logging services provide detailed information regarding the lithology and fluid content of rock samples circulated to the surface in drilling fluid during the drilling of oil and gas wells. Other measured parameters include rate of penetration, pump rate, pump pressure, weight on bit, strokes per minute, mud weight, mud viscosity, and mud volume. The lithology is interpreted by personnel working in a mobile laboratory at the well site by examining rock cuttings, and the other parameters are measured by equipment on the rig or in the mud-logging unit. In most instances, mud-logging is performed by third parties contracted by the drilling operator.




  • Know your objectives
  • Know the experience of your mud loggers
  • Ensure equipment is functioning properly and calibrated
  • Integrate the data and interpretation



  • Pay for unnecessary services
  • Base your decisions on price alone
  • Disregard the data or recommendations
  • Assume all mud-logging service providers are the same

Dustin Young, Geologist, Goodrich Petroleum Corporation



"I first worked with Stratagraph a little over two years ago. My company was just beginning a new venture, and they provided us with a top caliber mudlogger.


Their work surpassed the standard I anticipated. Stratagraph's loggers are conscientious and engaged on location, which provides me with reliable eyes and ears. We have not only received excellent field service, but we also have found the main office to be very agreeable and flexible to our needs.


Every request we have made to Stratagraph has been fulfilled and in some cases exceeded our expectations. This type of service, both from the office and the field, makes me want to continue using Stratagraph as my mudlogger in the future."



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