PULSE Ultrasonic chemical injection metering valves

Insert-retrievable, self-regulating subsea chemical injection metering valves for greater accuracy and reliability in low-dose inhibitor injection and hydrate mitigation Cameron PULSE* ultrasonic chemical injection metering valves (CIMVs) are remotely operated, ROV-retrievable, self-regulating subsea chemical injection metering systems. Self regulation is an integral part of all our CIMV technology and only requires one user-defined input—flow rate— for the system to monitor and control using onboard closed-loop control. At the core of each PULSE CIMV is a nonintrusive line-of-sight ultrasonic...

Low-, medium- and high-flow CIMVs The Cameron PULSE LF low-flow ultrasonic CIMV is designed for longstep-out, deepwater projects with complex system architectures, requiring subsea distributed injection of chemical inhibitors to address flow assurance challenges. It provides greater control and accuracy over the levels of low-dose inhibitors (LDIs) that are added to the flow at lower capex and opex compared with point-to-point injection. The technology uses a precision needle valve to regulate the flow through the system. The needle has an equal-percentage flow curve, providing exceptional control...

PULSE LF Low-Flow Ultrasonic CIMV Designed for injection of LDIs for wax, scale, and corrosion, the PULSE LF CIMV uses a nonintrusive ultrasonic flowmeter and a microneedle and seat throttling valve in closed-loop control. It has been engineered to handle flow rates from 0.07 to 159 galUS/h [0.25 to 600 L/h] and is retrievable by ROV, whether mounted in a horizontal or vertical orientation. Flow measurement At the core of the PULSE LF CIMV is our patented microbore nonintrusive line-of-sight ultrasonic flowmeter. The ultrasonic flowmeter has no moving parts and, unlike the Venturi-type flowmeter,...

PULSE LF CIMV 0.07-159 galUS/h [0.25-600 L/h] Technical Details Model Remotely operated, ROV-retrievable PULSE LF CIMV Application LDIs (corrosion, scale, wax, asphaltene, demulsifiers, etc.) Installation orientation Horizontal or vertical Design life 25 years Failure mode Fail as is; will continue to inject on loss of power or communication Max. differential pressure1 3,500 psi [24.1 MPa] for flow rates < 0.26 galUS/h [1 L/h] Min. differential pressure1 < 50 psi [0.34 MPa] for flow rates up to 26 galUS/h [100 L/h] < 500 psi [3.45 MPa] for flow rates up to 159 galUS/h [600 L/h] Hydraulic connection...

PULSE LF CIMV Typical Configurations Horizontal installation—insert with stab mate electrical connector and receptacle. Vertical installation—insert with stab mate electrical connector and receptacle.

PULSE LF CIMV Insert and Receptacle Features ROV grab handle Receptacle mounting Seven-way stab mate electrical connector Hydraulic coupler (×2) Class 4 ROV interface Lockdown latch Guide pin (×2) Stab mate electrical connector (not part of CIMV scope of supply) Lockdown indication band Lockdown latch guide and slot Protective skirt Receptacle guide funnel Installation and lockdown indication bands Receptacle tray Hydraulic coupler weld tail (×2)

PULSE MF Medium-Flow Ultrasonic CIMV The PULSE MF CIMV is designed for injection of MEG and methanol as part of a subsea hydrate mitigation strategy. It handles the contaminated regenerated MEG stream. At the heart of the PULSE MF and HF CIMVs is our patented nonintrusive line-of-sight ultrasonic flowmeter, developed with our advanced ultrasonic time-of-flight technology. The robust nonintrusive particulate-tolerant nature of the medium- and high-flow CIMVs means that no subsea filtration of the MEG or methanol is required. Flow Ultrasonic signal Ultrasonic transducer Ultrasonic transducer Flow...

PULSE MF CIMV 21-2,906+ galUS/h [80-11,000+ L/h] Technical Details Model Cameron remotely operated, insert-retrievable PULSE MF CIMV Application MEG, regenerated MEG, and methanol dosing Installation orientation Vertical Design life 25 years Failure mode Fail as is; will continue to inject on loss of power or communication Hydraulic connection 1-in [25.4-mm] Hunting RS-16 hydraulic couplers (two off) poppeted or nonpoppeted with weld tails (size and material as per project) Electrical connection Seven-way electrical connector (OneSubsea Diamould, Siemens Tronic, Teledyne ODI, stab and ROV mate...

PULSE MF CIMV Insert and Receptacle Features CIMV insert and receptacle assembly. CIMV receptacle. CIMV insert. Lockdown mechanism Pressure-balanced insert housing Alignment key Stab mate electrical connector

PULSE HF High-Flow Ultrasonic CIMV Developed for the ultrahigh-flow MEG and methanol requirements of large gas projects, and effective during startup and continuous hydrate inhibition, the Cameron PULSE HF CIMV is designed for a flow range of from 42 to 7,000 galUS/h [160 to 26,500 L/h] and tested in excess of 7,925 galUS/h [30,000 L/h]. Even at these ultrahigh design flow rates, the large-diameter nominal throughbore in the PULSE HF CIMV results in average erosion velocities below the API recommendation and, with a tungsten carbide throttling element based on the field-proven MOV choke trim...

PULSE HF CIMV 42-7,000+ galUS/h [160-26,500+ L/h] Technical Details Model Cameron remotely operated, insert-retrievable, PULSE HF CIMV Application MEG, regenerated MEG, and methanol dosing Installation orientation Vertical Design life 25 years Failure mode Fail as is; will continue to inject on loss of power or communication Hydraulic connection 1.45-in [37-mm] nominal throughbore; nonpoppeted couplers with metal-to-metal sealing Electrical connection Seven-way electrical connector (OneSubsea Diamould, Siemens Tronic, Teledyne ODI, stab and ROV mate options) Envelope dimensions Total length Approx....

PULSE HF CIMV Insert and Receptacle Features Alignment indication band Electrical connector (not part of CIMV scope of supply) Guide pin hole Insert alignment key Coupler inlet and outlet Hinged lifting handle Receptacle guide funnel Dog-in-window lockdown Receptacle housing Pressure-balanced insert housing Insert alignment key Insert alignment indication CIMV manifold Receptacle block Protective skirt for connectors Flange connection Receptacle alignment keyway Seven-pin electrical connector Stab coupler inlet and outlet Guide pin Four tapped holes for receptacle mounting