HPHT Consistometers
Source: OFI Testing Equipment, Inc. (OFITE)
During cementing operations the time required for a cement slurry to set is of primary concern
GENERAL:
During cementing operations the time required for a cement slurry to set is of primary concern. Under an ideal situation, minimal time would be required to successfully pump the slurry which immediately upon placement begins to develop compressive strength. However, if insufficient time is allowed to fully pump the cement, it will be necessary to drill the cement remaining in the casing string. Remedial operations such as this are very costly. Conversely, cements which are successfully placed, but require considerable time to cure consume valuable rig time which is also quite costly. Laboratory tests should be conducted under simulated reservoir conditions to examine the actual thickening time of the slurry. The OFI HPHT Consistometer was specifically engineered to determine the thickening time of well cements under simulated downhole pressures and temperatures.Maximum Operating Temperature of 400° F / 600° F.
Max. Allowable Working Pressure of 25,000 psi / 40,000 psi
Digital Temperature Controller, 1° Resolution
4000 Watt Internal Heater (5000 Watt Available).
Pressure Indicator Resolution is 100 psi and Incorporates High and Low Pressure Alarms.
Slurry Cup Rotational Speed is 150 rpm.
Pressure Generated via an Air Driven Hydraulic Pump - Slurry Cup Constructed of 316 Stainless Steel and Incorporates an Expansion Chamber.
Drive Table is Rotated With a Magnetic Drive.
External Cooling Jacket aids Cooling of Test Cell.
Electronic Timer With Alarm, Elapsed 0.1Minute Resolution
Deadweight Calibration Unit Included.
Temperature, Pressure and Consistency Alarms provide for Automatic Shutdown. Safety Head With Rupture Disk are Provided.
Unit is Fully Capable of Testing Cements in Strict Accordance to the Guidelines as Stated Within API Specification 10.
During cementing operations the time required for a cement slurry to set is of primary concern. Under an ideal situation, minimal time would be required to successfully pump the slurry which immediately upon placement begins to develop compressive strength. However, if insufficient time is allowed to fully pump the cement, it will be necessary to drill the cement remaining in the casing string. Remedial operations such as this are very costly. Conversely, cements which are successfully placed, but require considerable time to cure consume valuable rig time which is also quite costly. Laboratory tests should be conducted under simulated reservoir conditions to examine the actual thickening time of the slurry. The OFI HPHT Consistometer was specifically engineered to determine the thickening time of well cements under simulated downhole pressures and temperatures.
MODEL 100 / 120 FEATURES - SPECIFICATIONS
OFI Testing Equipment, Inc. (OFITE), 1006 West 34th Street, Houston, TX 77018-6321. Tel: 713-880-9885; Fax: 713-880-9886.
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