Echometer Menu User Menu Search Tech Notes TechNotes offer in-depth information on selected topics Pump Card Shapes Download PDF What downhole problems can be identified by recognizing diagnostic Pump Card shapes? Why is it sometimes difficult to diagnose downhole problems using measured polished rod surface dynamometer cards? Acoustic Survey Analysis Download PDF Does liquid exist above the pump? At what depth is the top of the liquid column? Does the liquid in the casing annulus restrict production from the well? What is the maximum production rate available from the well? What is the casing-head pressure? Does it restrict production? What is the percentage of liquid in the annular fluid column? Is gas flowing up the annulus? At what rate? What is the gas gravity? Are there any restrictions or anomalies in the annulus above the liquid level? Support FAQ Quick Refs How-To's > Tech Notes Maintenance Guides Manuals Repairs Online Seminars Well Analyzer License Utility Gas Separator About Us | Employment | Industry Links | ISO 9001:Certified | Conditions of Use and Legal Notices | Echometer Company 5001 Ditto Lane Wichita Falls, Texas 76302 Phone: (940) 767-4334 FAX: (940) 723-7507 Email: info@echometer.com Terms Of Use Privacy Statement Copyright 2011 by Echometer