Water handling capacity is the constraint that ends the productive life of many fields. As water cut rises, the volume through every part of the water system increases while the residence time available in each vessel falls, and the oil droplets reaching the treatment train become smaller because they have passed through more pumps and chokes. A system that comfortably met discharge specification at thirty percent water cut can fail at eighty percent with no change in equipment. Understanding the sizing basis is what allows an operator to predict when that will happen and to act before production is constrained.

Droplet size governs everything on the oil removal side. Gravity based equipment removes large droplets efficiently and small droplets not at all, hydrocyclones extend the range downward, and flotation and filtration are required for the fine and dispersed fraction. Every pump, valve and choke upstream of the treatment train shears droplets and shifts the distribution downward, which is why the treatment problem is often created in equipment nobody associates with water quality.

Injection introduces a stricter requirement than discharge. Water going into a formation must not plug it, which means solids content, oil content, bacterial activity, oxygen content and scaling tendency all have to be controlled. Injectivity decline caused by particulate plugging, scale precipitation at the mixing front, biofilm growth or formation damage is expensive and often irreversible, and reinstating an injection well is far more costly than treating the water correctly in the first place.

Discharge is a regulated activity. Oil in water limits, monitoring frequency, sampling method, reporting obligation and chemical discharge restrictions vary by jurisdiction, and non-compliance has consequences beyond the technical. Meeting the limit reliably, rather than on average, requires a treatment train with margin and a monitoring programme that identifies drift before it becomes an exceedance.

By the end of this training, participants will be able to:

• Characterise produced water including oil droplet size distribution, solids loading, dissolved species and gas content
• Select treatment technologies appropriate to the water quality, target specification and disposal route
• Size skim vessels, plate coalescers, hydrocyclones, flotation units and filters for a defined duty
• Design a complete produced water treatment train with appropriate staging and margin
• Specify injection water quality requirements and the filtration and deaeration needed to achieve them
• Evaluate injectivity decline mechanisms and design monitoring and remediation strategies
• Design chemical treatment programmes for scale, corrosion, oxygen, bacteria and reverse emulsion control
• Establish monitoring, sampling and reporting programmes appropriate to discharge or injection compliance
• Diagnose treatment performance loss and identify whether the cause is upstream, mechanical, chemical or hydraulic

The training follows the water from the separator outlet through each treatment stage to final disposal, with the removal mechanism, sizing basis and achievable performance established for each technology before it is placed in a train. Droplet size distribution data, separation efficiency curves, hydrocyclone performance data and filtration ratings are used in worked sizing calculations. Injection water quality requirements and injectivity decline behaviour are examined using field data from injection systems. Chemical programme design is developed through treatment objectives, dosage determination and interaction effects, and participants are encouraged to bring water handling or injectivity problems from their own assets for group analysis.

Organisations sending participants to this training will:

• Extend field life by removing water handling constraints on production as water cut rises
• Improve discharge compliance and reduce the risk of regulatory exceedance and associated shutdown
• Preserve injection well availability through better water quality control and injectivity management
• Reduce oil losses to the water system and recover the associated revenue
• Optimise water treatment chemical expenditure through better programme design and monitoring
• Improve the technical quality of water treatment package specification and vendor evaluation

Participants will:

• Size and configure a produced water treatment train for a defined duty and specification
• Understand which technology removes which droplet size and why a train is arranged as it is
• Diagnose water quality failures and trace them to their actual origin, often upstream of the water plant
• Specify and manage injection water quality to protect injectivity
• Design chemical treatment programmes and evaluate vendor performance against them
• Build specialist capability in the stream that dominates facility volume in mature fields

• Facilities, process and production engineers
• Water treatment and water injection engineers
• Production chemists and chemical treatment specialists
• Operations engineers and supervisors responsible for water handling systems
• Reservoir engineers involved in water injection and pressure support
• Environmental and regulatory compliance staff
• Design engineers specifying produced water treatment packages

Upon successful completion of this training course, delegates will be awarded an official Certificate of Completion issued by the Petroleum Engineers Association (PEA), an ISO 9001:2015 certified training organization. The certificate carries 10 Credits and formally records the total learning hours completed.

Each certificate is signed by the Course Facilitator and the CEO of the Petroleum Engineers Association, and serves as verifiable proof of professional training that delegates can present to employers and professional bodies worldwide.