Skoflo_chemical Injection Metering Valve (presentation 04.08.17) 6r533j

Presentation at Prcoess and Piping Department 04.08.2017

Chemical Injection Metering Valve Training May 2017

SkoFlo.com Phone: +1-425-485-7816

Who we are and what we do for you.

Maximize your ability to control and conserve your chemicals.

Help our clients protect the environment

Maintain your profits through line protection and performance.

Business Profile  Based in Seattle, WA  Chemical Injection Rate     

Controllers Since 1989 Over 23,000 SkoFlo Valves Pressure Independent Chemical Regulation Surface and Subsea Applications Complete Design, Manufacturing and Test Facilities ISO 9001-2008 certified

Milestone Timeline

Core Competencies  Engineering.  Experience. SkoFlo pioneered Distributed Chemical    

Injection Systems. Focus. Chemical injection is all we do. Integrated. Design, manufacturing and testing work closely in one facility. Proven. Surface and Subsea: we prove it topside. Follow up. Superior aftermarket service and .

Machining Capabilities • World Class Machining • 6 Mori Seiki CNC Horizontal Milling Machines • 2 9-Axis CNC Turning Centers • 3 5-Axis Vertical Milling Centers • 3 CNC Turning Centers • 1 EB Welding Machine • 1 “Sinker” CNC EDM Machine

Test Capabilities • • • •

Shock & Vibration Hyperbaric Testing: 3,000 m (10,000 ft) Hydrostatic Testing: 1550 bar (22.5 kpsi) Flow Testing: 15000 LPH (66 GPM) • Environmental Test: -18 to 70°C (0 to 158°F)

Inspection Capabilities • Industry leading inspection • CNC Programmable CMM Machine • Positive Material Identification (PMI)

The SkoFlo Product Line

Subsea Products

Surface Products

Surface Products

Surface SF-Series CIMV • • • • • •

SF-5000C Maximum Pressure of 5,000 PSI Turndown Ratio of 10:1 Flow range of (0.1 GPD) 0.38 LPD to (750 GPD) 2840 LPD Min DP required to ensure Performance 200 PSI Process Connections are 1/4” NPT

• • • • • •

SF-10000D & SF-10000DRS* Maximum Pressure of 10,000 PSI Turndown Ratio of 10:1 Flow range of (0.1 GPD) 0.38 LPD to (2000 GPD) 7570 LPD Min DP required to ensure Performance 200 PSI Process Connections are 3/8” AEMP

• • • • • •

SF-15000CRS* Maximum Pressure of 15,000 PSI Turndown Ratio of 10:1 Flow range of (0.1 GPD) 0.38 LPD to (2000 GPD) 7570 LPD Min DP required to ensure Performance 200 PSI Process Connections are 3/8” AEMP

• •

* Retainer (RS) on cup seals & seat to protect from reverse flow * DRS & CRS series is designed for actuator use

Surface High Turndown CIMV HTD-5000A* & HTD-10000A** Maximum Pressure of 5,000 PSI & 10,000 PSI Turndown Ratio of 500:1 & 100:1 Min DP required to ensure Performance 300 PSI

Flow range #1 – 0.6 GPD to 300 GPD Flow range #2 - 1 GPD to 500 GPD Flow range #3 - 15 GPD to 1500 GPD Flow range #4 - 20 GPD to 2000 GPD Variable flow throttling orifice for higher turn down Design avoids tortious path orifice & hence handles debris better HTD series is designed for electric actuator use Elastomer Materials: Viton-Chemraz-EPDM Retainer (RS) on cup seals & seat to protect from reverse flow * Process Connections are 1/4” NPT ** Process Connections are 3/8” AEMP

NMFE Surface CIMV •

Maximum Pressure of 10,000 PSI & 15,000 PSI

• • • •

Turndown Ratio of 48:1 Min DP required to ensure Performance 500 PSI Flow range - 0.25 - 12 US GPM (56.78 - 2725 L/Hr) Standard Process Connections are 3/4” AEMP

•

Variable flow throttling orifice for higher turn down Design avoids tortious path orifice & hence handles debris better NMFE series is designed for electric actuator use Elastomer Materials: Viton-Chemraz-EPDM Gray Lock Hubs are available as option

• • • •

Back Pressure Regulator (BPR) • BPRs spill off excess fluid that subsea or surface CIMVs do not flow. • As pressure rises in the discharge line, the BPR will maintain pressure levels at set point while allowing the unused fluid to return to the tank. • Designed to allow chemicals to flow back to tank continuously and ensure enough pressure to drive all CIMVs in the Chemical Injection System. • To ensure pressure build up in the pump discharge line feeding the CIMVs, pump output must be adjusted to 10% or 15% greater than expected injection flow rates.

Back Pressure Regulator (BPR) ISOLATION VALVE

BPR

PRV

PUMP(S) FLOW METER

FILTER FILTER

ISOLATION VALVE CHEMICAL TO PROCESS

PULSATION DAMPER

CHECK VALVE

CIMV

Back Pressure Regulator (BPR) • Single Stage BPR • BPR5000D, BPR10000C & BPR15000B

• Multi-stage BPR • BPR5000MFA, BPR10000MFB & BPR15000MFC

SkoFlo: Surface Track Record • Installed Applications: • FPSOs & Platforms • Chemical Injection Skids • Chemical Injection s • Significant Surface CIMV Projects supplied: • North America (Prudhoe Bay, Thunder Horse, Atlantis, Jack St Malo, Tahiti, Heidi & Hondo) • Brazil (Pre-salt) • North Sea (Merlin, Gyda, Bleo Holm, Clyde, Forties) • Africa (Tweneboa, Egina) • Asia (Azeri, Ghawar, Karachaganak, Balikpapan) • Australia (Ichthys, Pyrenees, Julimar)

Chemical Injection Basics

Chemical Injection Systems -Basics What are our objectives? 1.

Pipeline Integrity a. Prevent pipeline and equipment degradation due to corrosion

2.

Flow Assurance a. Maintain optimal flow with minimal management (lowest cost)

3.

Achieve 1 & 2 above at Lowest Long-Term Operating Cost a. Injection flow rate accuracy for precise chemical dosing (What are the consequences of overdosing? Under dosing?)

Chemical Injection Systems -Basics Pipeline Integrity Catastrophic Pipeline Failure

Deep pitting along pipeline - typical of corrosion

Chemical Injection Systems -Basics Flow Assurance Hydrate Slug

Scale Deposits

Chemical Injection Systems -Basics Types of Systems • Single Injection Point Systems - One Pump required for each injection point

• Distributed Chemical (Multiple) Injection Point Systems • Operated with a single “duty” pump and one standby pump

Topside Single Injection Point System - One pump required for each injection point

Topside Multi-Injection Point System - Entire system run from one “duty” pump and with one “standby” pump

Multiple Injection Point System BACK PRESSURE REGULATOR

ISOLATION VALVE

FILTER

PUMP(S)

PRV

FLOW METER FILTER

ISOLATION VALVE

CHEMICAL TO PROCESS

PULSATION DAMPER CHECK VALVE

CHEMICAL INJECTION VALVE

CIMV Technologies

CIMV Technologies • Goal of a good chemical injection valve • Maintain constant flow rate

• Challenges of chemical injection 1. 2.

Debris and filming: very low flow rate, high pressure drops, results in control surfaces that are essentially touching, typically less than 20 micron. Varying pressures: increasing the pressure drop across a valve will result in an increased flow rate. • Upstream pressure increases and the flow of chemical injected into the flow line increases, resulting in over-dosing. • Downstream pressure increases and the flow of chemical injected into the flow line decreases, resulting in under-dosing.

Pressure Independence Delivers Precise Flow Minimum ΔP to “Drive” Valve

FLOW (Li/day)

Standard Valve

ΔP ACROSS VALVE

Summary

 WORLD LEADER IN CHEMICAL INJECTION TECHNOLOGY  Pressure independent design is simple and accurate. It just works better  Over 20,000 valves in service worldwide.

Reliable service record since 1988 28 YEARS EXPERIENCE Repeat customers Flow Ranges from 4 liters/day to 11,200 liters /hour Pressure rating to 10,000 psi.  SkoFlo is the preferred chemical injection valve for both surface and subsea, It’s the best choice for your applications as well.