Comprehensive Cement Analyzer

• U.S. Patent No.: 10,845,285
  U.S. Patent No.: 11,300,557
  U.S. Patent No.: 11,378,568

---

The Grace Instrument Company M7600 revolutionizes oil field cement testing by completing consistency testing, SGS (Static Gel Strength) testing, filtration, UCA (cement compressive strength), and gas migration testing with one single load of a sample. It reduces the cement testing workload and the testing time tremendously while substantially improving testing accuracy and consistency because the user does not need to prepare multiple batches of the same sample for different tests.

First, cement slurry is prepared according to API-recommended practices and poured into the pressure vessel. Afterwards, a PC is used to select a test sequence that conducts all tests with one single loaded sample; alternatively, you can conduct only one type or a combination of types of tests.

After a test starts, a paddle rotating at programmable speeds (up to 250 RPM) measures slurry consistency and thickening time. At a desired time or consistency value, the paddle speed can be changed to 0.2 deg/min to start an SGS test. Filtration and gas migration tests can be started at a desired time during or after an SGS test. Afterwards, an Ultrasonic Cement Analyzer (cement compressive strength) test is completed. Gas permeability could also be calculated after cement hardens.

All of the above tests are subjected to simulated downhole conditions using automatic pressure and temperature controls. The M7600 can run one test or any combination of tests in a sequence. Results obtained from the M7600 are consistent with current API-compliant testing equipment.