Protect the next stage of your process. Explore water, brine and solvent filtration, understand specialist separation duties, and select around your actual operating conditions.
For oilfield service teams, production facilities, gas plants, refineries and terminals. Explore eight process routes, identify the filtration duty, and review the data needed to select an element.
Refineries • terminals • gas plants • offshore utilities
These original maps show representative process logic, not complete plant designs. Product links identify candidates for evaluation. They do not establish interchangeability, sour-service qualification or approval for the operating envelope.
Well services • workover • gravel-pack fluids
Completion & workover brines
Particles introduced during mixing, storage or recovery can compromise a completion-fluid cleanliness target. Build the filtration train around the brine chemistry and measured solids burden, then protect the fluid after it has been cleaned.
Process map / Completion & workover brinesFollow steps 01–06
01Brine preparationConfirm chemistry and density
02Bulk clarificationWhere incoming loading requires it
03Cartridge polishingSelect the verified retention grade
04Clean-fluid storagePrevent recontamination
05Quality releaseCheck the agreed fluid specification
06Well-service supplyDeliver through the approved system
↳ Recovered fluid follows a separate collection and assessment route before returning to treatment. Do not send unassessed returns directly to the clean tank.
Teal: particle filtration · Funnel: separation or adsorption as labelled · Gold: verification. Conceptual treatment logic; pumps, valves and protective devices are not fully shown. Not an installation drawing.
This is a clear-brine conditioning route, not a drilling-mud treatment recipe. A micron label alone does not demonstrate that a filter meets the well’s cleanliness requirement.
Filtration stages and selection
Stage
Objective
PARSWOOD approach to evaluate
Bulk loading
Avoid exhausting the polishing stage on heavy solids.
Review existing clarification; a press or other bulk-solids unit may be needed before cartridges.
Polishing
Meet the specified particle-removal duty.
Evaluate pleated or high-flow elements after confirming salt composition, density, temperature and seal compatibility.
Release
Confirm cleanliness at the delivery point.
Agree sampling and acceptance methods with the well-service team; monitor pressure difference and fluid quality.
Process information to review
Brine composition and density; additives; initial solids and size distribution; required clarity/particle target; flow; temperature; pressure envelope.
Fluid analysis; retention and flow data for the exact grade; chemical compatibility statement; vessel specification; upstream/downstream sample results.
Start with the linked product specifications. Request missing grade-specific data through the application review; this page does not imply that every document is already available for download.
Onshore production • offshore facilities • water reuse
Produced water & flowback conditioning
Produced water can contain suspended solids and several forms of hydrocarbon contamination. Assign each treatment stage a specific job before selecting a polishing element. Flowback composition can change substantially over a campaign and needs its own sampling plan.
Process map / Produced water & flowback conditioningFollow steps 01–06
01Separated water feedCharacterize the aqueous stream
02Bulk oil / solids removalSelect for the incoming burden
05Water verificationTest against the destination target
06Approved destinationReuse or injection route as designed
↳ Removed oil, solids and rejected water leave through dedicated handling routes. Off-spec water returns to appropriate treatment rather than automatically proceeding to reuse.
Teal: particle filtration · Funnel: separation or adsorption as labelled · Gold: verification. Conceptual treatment logic; pumps, valves and protective devices are not fully shown. Not an installation drawing.
Particle cartridges do not establish removal of dissolved salts or dissolved hydrocarbons. Oil-removal stages and destination-specific treatment remain separate requirements.
Filtration stages and selection
Stage
Objective
PARSWOOD approach to evaluate
Before cartridges
Reduce oil and solids that would overload a fine filter.
Assess the existing separator and any flotation, hydrocyclone or other treatment on its actual performance.
Liquid polishing
Control residual particulate loading.
High-flow, pleated or depth candidates may suit the measured duty; nominal bags may serve a coarse stage.
Destination acceptance
Check the complete water-quality target.
Use representative samples and the site’s acceptance procedure; visual clarity alone is insufficient.
Process information to review
Water analysis; dispersed oil and solids loading; changing feed conditions; salinity; chemicals; temperature; flow; receiving-process limits.
Treatment flow diagram; feed and outlet analyses; grade-specific retention; material limits; trial pressure history and throughput.
Start with the linked product specifications. Request missing grade-specific data through the application review; this page does not imply that every document is already available for download.
Reservoir support • seawater systems • offshore injection
Injection water & sulfate-removal pretreatment
Injection-water quality must be specified for the reservoir and the treatment equipment. On a seawater sulfate-removal route, particle control protects the downstream membrane stage; dissolved-sulfate reduction is a different separation duty.
Process map / Injection water & sulfate-removal pretreatmentFollow steps 01–06
02Primary pretreatmentControl bulk loading as designed
03Guard filtrationMeet the membrane feed requirement
04Sulfate-removal unitMembrane separation where required
05Final conditioningDeoxygenation / chemistry as designed
06Injection systemRelease to the approved water target
↳ Sulfate-removal membranes produce treated water and a separate concentrate stream. The concentrate does not follow the treated-water route to the injection system.
Teal: particle filtration · Funnel: separation or adsorption as labelled · Gold: verification. Conceptual treatment logic; pumps, valves and protective devices are not fully shown. Not an installation drawing.
The map illustrates one seawater route. Fresh-water and produced-water injection can require different trains. Disposable particle cartridges do not remove dissolved sulfate or oxygen.
Filtration stages and selection
Stage
Objective
PARSWOOD approach to evaluate
Guard filtration
Limit particulate challenge to the membrane unit.
Review high-flow or pleated cartridges against the membrane supplier’s feed requirement and the actual pretreatment outlet.
Reservoir protection
Set a defensible cleanliness requirement.
Use formation and injection data; avoid choosing a universal micron grade from a catalogue.
System verification
Check the entire treated-water specification.
Track particle quality alongside sulfate, oxygen and other site-defined criteria.
Membrane feed limits; water analysis; filtration efficiency curve; system drawing; injection-water acceptance specification.
Start with the linked product specifications. Request missing grade-specific data through the application review; this page does not imply that every document is already available for download.
Gas plants • refinery gas treating • acid-gas removal
Amine solvent particle control
Amine treating relies on solvent absorption and regeneration. Fine solids in the circulating solvent can contribute to fouling; hydrocarbon contamination needs a separate assessment. The map below isolates a possible solvent-cleanup branch rather than presenting it as the full gas-treatment train.
Process map / Amine solvent particle controlFollow steps 01–06
01Selected solvent take-offUse the approved rich / lean location
03Adsorption treatmentOnly where the design includes it
04PostfilterRetain shed adsorbent fines
05Solvent condition checkReview solids and chemistry
06Return to amine loopAt the specified connection point
↳ Main process: sour gas contacts lean solvent; rich solvent proceeds to regeneration and lean solvent returns to the contactor. Filtration can be full-flow or a slipstream depending on the plant design.
Teal: particle filtration · Funnel: separation or adsorption as labelled · Gold: verification. Conceptual treatment logic; pumps, valves and protective devices are not fully shown. Not an installation drawing.
Cartridges do not perform acid-gas absorption or remove heat-stable salts by particle retention. Adsorbent treatment and hydrocarbon coalescing are distinct duties; no equivalent adsorbent or coalescer is established here.
Filtration stages and selection
Stage
Objective
PARSWOOD approach to evaluate
Solvent solids
Select for corrosion products and other suspended matter.
A high-flow liquid element is a catalogue-supported candidate; qualify the exact amine chemistry, temperature and construction.
Cleanup branch
Match the installed treatment arrangement.
Confirm whether adsorption is installed and which pre/postfilters it requires; do not add it as a universal prescription.
Acceptance
Separate particle improvement from solvent chemistry.
Compare solids and pressure trends with the plant’s solvent-analysis programme.
Process information to review
Amine type/concentration; rich or lean duty; contaminants; temperature; flow fraction; operating pressure; exact filter and seal details.
Process drawing; solvent analysis; compatibility evidence; element efficiency; adsorbent carryover specification where relevant; trial record.
Start with the linked product specifications. Request missing grade-specific data through the application review; this page does not imply that every document is already available for download.
A glycol dehydration unit transfers water from gas into a circulating liquid and regenerates that liquid. Suspended debris and hydrocarbon contamination call for different controls. Review the liquid-cleanup arrangement separately from the gas-side separators.
Process map / Glycol dehydration solvent cleanupFollow steps 01–06
05PostfiltrationRetain adsorbent fines where needed
06Regeneration routeContinue to the specified equipment
↺ After regeneration and the required cooling/pumping stages, lean glycol returns to the gas contactor. Regeneration overhead and flash streams follow separate plant handling routes.
Teal: particle filtration · Funnel: separation or adsorption as labelled · Gold: verification. Conceptual treatment logic; pumps, valves and protective devices are not fully shown. Not an installation drawing.
Filter location depends on the installed unit. A particle cartridge does not dehydrate the gas; it also does not replace inlet or outlet gas-liquid coalescers.
Filtration stages and selection
Stage
Objective
PARSWOOD approach to evaluate
Liquid solids
Control debris in the glycol circuit.
Investigate a compatible liquid cartridge only after checking actual glycol composition and filtration temperature.
Adsorbent protection
Keep separate treatment functions clear.
Where an adsorbent bed is installed, review its prefilter and fines-retention requirements.
Operational review
Verify the effect in the complete unit.
Track solvent condition, pressure difference and plant performance without assuming a filter change cures every foaming problem.
Process information to review
Glycol type; water content; hydrocarbon contamination; operating temperature at the proposed filter; pressure; viscosity; regeneration arrangement.
Glycol analysis; circuit drawing; exact element temperature/chemical limits; viscosity-adjusted sizing; baseline and trial results.
Start with the linked product specifications. Request missing grade-specific data through the application review; this page does not imply that every document is already available for download.
Before stabilization, suspended solids and entrained salty water can create different fouling problems. Treat particle removal and water-droplet separation as two stages with different performance requirements.
Process map / Condensate & liquid-hydrocarbon conditioningFollow steps 01–06
01Condensate feedAssess solids and water content
02Bulk separationWhere required by the feed
03Particle prefilterProtect downstream separation
04Liquid-liquid coalescerSeparate entrained water
05StabilizationRemove light ends as designed
06Product verificationCheck the required specification
↳ Separated aqueous liquid leaves the coalescer through its dedicated outlet. Stabilizer overhead is a separate stream; neither follows the liquid-product outlet.
Teal: particle filtration · Funnel: separation or adsorption as labelled · Gold: verification. Conceptual treatment logic; pumps, valves and protective devices are not fully shown. Not an installation drawing.
A particle cartridge is not a water coalescer. Coalescing addresses a dispersed liquid phase, not a guarantee of dissolved-water removal or condensate stabilization.
Filtration stages and selection
Stage
Objective
PARSWOOD approach to evaluate
Prefiltration
Reduce solids entering the coalescer.
Review a liquid-particle element against the installed prefilter specification; hydrocarbon compatibility must be documented.
Water separation
Meet a defined entrained-water target.
No verified PARSWOOD liquid-liquid coalescer equivalent is identified from the linked catalogue. Request a separate technical review.
Acceptance
Confirm both separation duties.
Test particulate and water quality independently under representative operating conditions.
No verified catalogue replacement is established for this duty. Send the existing specifications for review.
Documents and trial evidence
Existing filter/coalescer datasheets; full fluid analysis; vessel and material specifications; element drawings; test methods and acceptance criteria.
Start with the linked product specifications. Request missing grade-specific data through the application review; this page does not imply that every document is already available for download.
Gas streams require equipment qualified for gas service. On an adsorbent-dehydration route, upstream liquid removal protects the drying bed and downstream particle filtration intercepts bed dust. Neither function should be specified from a liquid-cartridge micron label.
Process map / Gas treatment & dehydration protectionFollow steps 01–06
01Conditioned gas feedAfter required upstream treatment
02Bulk liquid separationManage the expected liquid burden
03Gas-liquid coalescingControl entrained aerosols
04Adsorbent dehydrationRemove water vapour
05Dry-gas particle filterIntercept adsorbent dust
06Downstream processingVerify the receiving specification
↳ Coalescer drains and the adsorbent regeneration circuit are separate from the dry-gas product route. This map does not show all upstream gas purification or bed-switching equipment.
Teal: particle filtration · Funnel: separation or adsorption as labelled · Gold: verification. Conceptual treatment logic; pumps, valves and protective devices are not fully shown. Not an installation drawing.
No gas coalescer, molecular-sieve medium or dry-gas filter replacement is verified in the linked PARSWOOD range. Fuel-gas and compressor circuits require their own equipment-specific review.
Filtration stages and selection
Stage
Objective
PARSWOOD approach to evaluate
Before the bed
Limit liquid carryover.
Specify gas-liquid separation for gas composition, pressure, flow and aerosol burden.
After the bed
Control entrained adsorbent particles.
Confirm the required dry-gas filter construction, temperature limits and efficiency test.
Replacement review
Preserve the original duty and qualification.
Submit the installed datasheet and process conditions; do not substitute a general liquid element.
Process information to review
Gas composition; operating and upset envelope; liquid/aerosol burden; dew-point requirement; dust load; existing vessel and element specification.
Specialist application review
No verified catalogue replacement is established for this duty. Send the existing specifications for review.
Documents and trial evidence
Gas-service qualification; original equipment drawings; coalescence/retention test evidence; operating envelope; drain and regeneration interfaces.
Start with the linked product specifications. Request missing grade-specific data through the application review; this page does not imply that every document is already available for download.
Refineries • terminals • gas plants • offshore utilities
Process water & utility pretreatment
Utility-water systems support production but have their own water-quality requirements. Select particulate pretreatment around the downstream equipment rather than treating every plant-water circuit as the same application.
Process map / Process water & utility pretreatmentFollow steps 01–06
04Dissolved-species treatmentRO / other treatment as required
05Utility quality checkVerify the receiving-system target
06Dedicated distributionSupply the intended utility
↳ Membrane reject and treatment wastes follow separate handling routes. Cooling-water recirculation and boiler-feed conditioning are separate designs, not interchangeable outlets.
Teal: particle filtration · Funnel: separation or adsorption as labelled · Gold: verification. Conceptual treatment logic; pumps, valves and protective devices are not fully shown. Not an installation drawing.
Cartridges remove particles; they do not soften water, remove all dissolved salts or establish boiler-feed quality. A cooling-water side stream also needs its own flow and chemistry assessment.
Filtration stages and selection
Stage
Objective
PARSWOOD approach to evaluate
Guard duty
Protect downstream treatment from particles.
High-flow, pleated and depth elements are candidates for compatible water feeds.
Sizing
Account for water quality and flow variation.
Compare clean pressure difference, expected loading and terminal limits for the selected element.
Quality verification
Check what the receiving system needs.
Use its water specification; record outlet quality and treatment performance.
Process information to review
Source analysis; downstream equipment; seasonal load; chemical dosing; flow; operating temperature and pressure; available installation space.
Water analysis; downstream feed limits; element efficiency and sizing data; wetted-material list; trial/change-out record.
Start with the linked product specifications. Request missing grade-specific data through the application review; this page does not imply that every document is already available for download.
Rig, compressor and turbine filters need equipment-specific retention, collapse strength, bypass and viscosity data. General process-liquid cartridges are not assumed equivalents.
Refinery & petrochemical feeds
Hot feeds, catalyst protection and reactive chemicals require a separate materials and operating-envelope review. A water-service listing does not establish suitability.
Carbon capture & other solvents
A familiar solvent name does not establish the same contaminant burden or operating conditions. Submit the specific circuit and solvent analysis for evaluation.
Product fit / technical review
PARSWOOD liquid-filtration candidates
Melt-blown PP cartridges
Bulk particulate reduction in compatible aqueous feeds and selected brines.
The published efficiency table lists 85% for 1–5 µm grades and 90% for 10–100 µm grades. These are not absolute barriers. The listing gives a 65°C maximum operating temperature and 2.0 bar maximum differential pressure at 20°C; confirm the selected construction and derating.
The published efficiency varies with grade; this is not an assumed absolute barrier. Confirm chemical and temperature suitability for the actual fluid.
Fine-particle control in compatible water and selected process-liquid circuits.
Published grades span 0.1–50 µm. The listing identifies process-water and plating-chemical applications. Obtain the test method, retention efficiency and pressure/temperature limits for the exact grade.
Request the grade-specific retention test and full construction details. Liquid filtration data do not qualify the element for natural-gas service.
Coarse screening or prefiltration of compatible liquids where a nominal grade meets the duty.
The listing offers PP, PET and nylon media and different seal-ring constructions. Ratings are nominal. Select the material for the actual chemistry and temperature, and verify the supporting basket and seal.
Size 2 dimensions alone do not establish fit: check ring, seal, basket, material and required efficiency. Not a final absolute-retention claim.
Higher-flow liquid particle duties: the listed applications include produced water, injection water and amine sweetening.
The listing includes several formats, nominal/absolute options and different constructions. Select one exact model; confirm dimensions, flow direction, seals and retention data before comparing it with the installed element.
Choose the exact model, retention basis, flow direction and seals. An application listing is not approval for a particular sour-fluid, pressure or temperature envelope.
A vessel selected and documented for the exact liquid circuit.
Confirm vessel materials, pressure/temperature rating, connections, vent/drain arrangement and element retention. Review installation space and safe change-out access.
General catalogue housings are not automatically approved for sour gas, flammable hydrocarbons or high-pressure injection. Confirm the complete vessel design basis.
Record the installed element, fluid composition, actual flow, temperature, operating pressure and pressure difference across the filter. Agree outlet quality and change-out criteria before the trial. Element differential-pressure limits and vessel operating-pressure ratings are different specifications.
