Chemical Injection Systems
أنظمة حقن المواد الكيميائية
- Next date
- Available in-house
- Fees from
- —per delegate
- Formats
- In-house training0 sessions
- Duration
- 5 daysCertificate
Overview
Chemical injection systems deliver the inhibitors, demulsifiers, biocides, methanol, glycol and other chemicals that keep wells, flowlines and facilities running. They are small compared with the main process equipment, but when they fail the consequences can be large: hydrate blockages, scale build-up, corrosion damage, off-specification products and unplanned shutdowns. Accurate dosing, reliable pumps, clean and compatible chemicals and good monitoring are all needed. Offshore and in remote fields, where downhole and subsea injection points are hard to reach, a well designed and maintained system is especially valuable.
This course provides a practical understanding of the design, operation and maintenance of chemical injection systems for oil and gas production. Participants learn why each chemical is injected, typical dosing strategies, and the components of injection skids, including storage tanks, pumps, flow control and metering devices, check valves and injection quills. The course covers downhole injection through capillary lines and gas lift mandrels, subsea injection through umbilicals, chemical compatibility and qualification, and the prevention of blockages. It also explains monitoring of dosing rates and residuals, optimisation of chemical consumption, safety in chemical handling and troubleshooting of common system failures.
Objectives
- Explain the purpose of the main production chemicals and their injection points
- Describe the components of chemical injection skids and their functions
- Select and size chemical injection pumps and flow control equipment
- Understand downhole and subsea injection systems and their special risks
- Manage chemical compatibility, qualification and blockage prevention
- Monitor dosing rates and residuals and optimise chemical consumption
- Operate systems safely and troubleshoot common injection failures
Who should attend
Production chemists, production and facilities engineers, instrument and mechanical technicians, operators and maintenance staff.
Training methodology
The course combines technical explanation with practical design and troubleshooting exercises using real system drawings and operating data. Participants calculate dosing rates for different chemicals, size pumps and storage, and review P&IDs of injection skids to identify design weaknesses. Photographs of blocked injection quills, failed pumps and corroded lines help participants recognise common problems. Case studies of hydrate blockages and corrosion failures caused by injection system faults are analysed in groups. Each day ends with a short quiz and discussion of injection issues at participants' own sites.
Programme outline
Day1Production Chemicals and Their Purpose
- Why chemicals are injected in production and the cost of poor injection
- Corrosion inhibitors, scale inhibitors and their typical injection points and rates
- Hydrate inhibitors such as methanol and MEG and their large-volume injection needs
- Demulsifiers, defoamers, wax and asphaltene inhibitors and their use in facilities
- Biocides, oxygen scavengers and H2S scavengers in water and gas systems
- Continuous versus batch treatment and the selection of a dosing strategy
- Practical exercise: identifying chemical injection points on a production facility P&ID
Day2Injection Skid Design and Components
- Chemical storage tanks, bunding, level measurement and safe filling arrangements on site
- Positive displacement injection pumps such as diaphragm and plunger types and their selection
- Pump sizing, pressure ratings and the calculation of required injection rates
- Flow control and metering devices for accurate delivery of small chemical volumes
- Check valves, filters, pulsation dampeners and pressure relief on injection lines
- Injection quills, atomising nozzles and the correct placement of injection points
- Practical exercise: sizing pumps and storage for a multi-chemical injection skid
Day3Downhole and Subsea Injection
- Downhole injection through capillary strings and the protection of wells and completions
- Injection through gas lift mandrels and other completion injection points
- Subsea chemical injection through umbilicals and subsea chemical distribution units
- Umbilical design, chemical cleanliness requirements and the filtration standards that apply
- Blockage risks in long injection lines and methods to prevent and clear blockages
- Chemical qualification tests for downhole and subsea use, including thermal stability
- Practical exercise: reviewing a subsea injection system design for blockage risks
Day4Compatibility, Monitoring and Optimisation
- Chemical compatibility with each other, with process fluids and with materials of construction
- Monitoring injection rates with flow meters, tank drawdown and automated systems
- Residual measurement and other methods to confirm that chemicals are working
- Optimising dosage to reduce chemical cost without increasing operational risk
- Chemical supply logistics, inventory management and the review of supplier performance
- Automation and remote monitoring of injection systems in unmanned facilities
- Practical exercise: analysing dosing and residual data to recommend new injection rates
Day5Safety, Maintenance and Troubleshooting
- Safe handling of production chemicals, safety data sheets and personal protection
- Preventive maintenance of injection pumps, valves, filters and associated instruments
- Common failures: pump loss of prime, blocked quills, leaks and incorrect dosing
- Systematic troubleshooting of injection systems using pressure and flow data
- Lessons from incidents caused by chemical injection system failures in the industry
- Group exercise: troubleshooting an injection system that failed to prevent hydrate blockage
- Final assessment and discussion of injection issues at participants' own facilities
Dates and fees
There are no scheduled dates for this course at the moment. Request it as in-house training, or ask us about the next date.
Certificate
Every delegate who attends the full programme receives a Harfard Technology certificate of completion stating the course title, duration, dates and venue.
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