Well Completions in Challenging Environment

Operators are completing wells in increasingly challenging environments where equipment are subject to extreme pressures, temperatures, and mechanical loading. It is critical to ensure that equipment can withstand these conditions through validation testing.

API Specification 14A (2015) Annex J provides a methodology by which manufacturers/end users may verify that the Subsurface Safety Valve (SSSV) hydro mechanical system functions properly at all anticipated in service loading conditions (the Rated Performance Envelope).

Annex H of the standard (Verification and Validation Requirements for High-pressure, High-temperature Environment) requires performance of the Combined Loads Operational Test at maximum rated operating temperature, i.e.b350°F (176.7°C) and higher.

Combined Loading Testing of HPHT SSSVs at Operational Conditions

C-FER Technologies has developed in-house equipment and expertise to perform Combined Loads Operational Testing for high-pressure high-temperature (HPHT) SSSVs:


  • Up to 400°F (204.4°C)¹; and
  • Feedback controlled internal vessel temperature distribution.

External Pressure

  • 15,000 psi (103.4 MPa) liquid at max temperature¹
  • 12 inch (304.8 mm) internal diameter x 132 inch (3.35 m) long vessel enclosures

Internal Pressure

  • 30,000+ psi (206.8 MPa) liquid
  • 20,000 psi (138 MPa) gas (N2)

Control Line Pressure

  • 20,000 psi (138 MPa)¹

Axial Load

  • Vertical or horizontal load frame configuration
  • Tension of up to 3,400,000 lbf (15 MN)¹
  • Compression of up to 3,400,000 lbf (15 MN)¹

Bending Load²

  • Up to 20,000 kip-ft (27 MN-m)

Remote Monitoring

  • Client facing test panel displays test data via secure server for real-time review
    • Control Line Pressure Trace
    • Axial Load
    • Internal Pressure
    • External Pressure
    • Temperature

¹Greater temperature, pressure, and axial/bending loads possible in certain configurations. Please contact C-FER Technologies for more information.
²Supplementary test fixtures required for application of bending loads.


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