For over 70 years, Chandler Engineering has been the world’s largest supplier of instruments for testing oil, gas and geothermal well cements. From our headquarters in Tulsa, Oklahoma, U.S.A., we design, manufacture, service and support the instruments used for testing per American Petroleum Institute (API) Specification 10 and ISO CD10426. We also provide instruments for API Specification 13 for drilling mud, and API Specification 39 for fracturing fluids. Chandler Engineering is best known in the oilfield Industry as the pioneer in developing and manufacturing oilfield cement test equipment. Virtually every oil well cement testing laboratory has a Chandler Engineering consistometer. Additionally, many other laboratory instruments are manufactured at Chandler’s manufacturing facility. Other types of oilfield laboratory instrumentation designed and manufactured at Chandler include mixers, rheometers, fluid loss cells, corrosion testers and compressive strength testers. Chandler Engineering is also the sole licensed manufacturer of the Ultrasonic Cement Analyzer (UCA). Chandler has taken the technology one step further with the recently developed Static Gel Strength Analyzer (SGSA), an instrument that determines the gel strength building of a cement slurry which is ideally suited for determining potential gas migration problems.