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Model 4268-S Cement Shrinkage Cell

Model 4268 ES Cement Expansion / Shrinkage Cell
A Critical Tool for Oil Well Drilling and Cementing
The expansion or shrinkage of oil well cement during curing can positively or negatively impact the integrity of a completed well. The Model 4268-S Cement Shrinkage Cell is an option for the Model 5265 Static Gel Strength Analyzer (SGSA), Model 4265 Ultrasonic Cement Analyzer (UCA) or Model 4265H UCA. When combined with a precision pressure controller, the system continuously measures the shrinkage of a cement sample under high temperature and high-pressure conditions.

The system measures change in volume of the sample using a diaphragm and displacement piston combined with a precision LVDT. The resulting translation of the piston is scaled in units of milliliters (mL) or percent shrinkage. Test data is presented graphically by the Chandler Engineering Model 5270 Data Acquisition and Control System.

Description
The Model 4268-S Cement Shrinkage Cell makes use of the programmable temperature controller that is a part of an existing Chandler Engineering Ultrasonic Cement Analyzer. Compatibility with Models 4265 UCA, 4265-HT UCA or 5265 SGSA. A Quizix Precision Pump and Software is also required when using the Model 4268-S.

The system is capable of precise pressure control within ± 50 psi necessary for shrinkage measurement. Multiple segment ramps and dwell temperature and pressure schedules may be defined for the sample using the controllers.

  • Specifications +


    Features
    • Continuous Measurement Under HPHT Conditions
    • Cement Sample Isolated From the Pressurizing Media
    • Single Vessel Curing to Preserve Sample Conditions and Testing Integrity
    • Programmable Temperature and Precision Pressure Control
    • Easy to Install and Use in Chandler Engineering Model 4265 UCA; 5265 SGSA and 4265H Horizontal UCA

    Vessel Volume: 200mL
    Measurements: ±20 mL volume change of the cement sample, sample 
    temperature, sample pressure. Piston displacement may reach
    -32 mL for initial sample compression
    LVDT Measurement Range: ±0.500 inches /±12mm
    Maximum Temperature: 400°F / 204°C
    Maximum Pressure: 10,000 psi / 69 MPa

    Utilities
    Power:     85 – 240 VAC, 50 VA or less, 50/60 Hz (LVDT electronics and related data 
    acquisition hardware), refer to power requirements of the specific instrument 
    (Model 5265 SGSA or 4265 UCA)
    Water: Filtered pressurizing water, 20-100 psi / 140-670 kPa
    Coolant: Clean water or Ethylene glycol solution
    Air: Filtered, dry compressed air; 75-125 psi / 520-860 kPa
    Drain: Suitable for hot water

    Manufacturer’s specifications subject to change without notice

  • Brochures +