Alderley PWT Brochure

7/22/2019 Alderley PWT Brochure

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Produced Water

Treatment SystemsSolutions to meet the most stringent produced water requirements

Shaping the future of produced water solutions



Produced Water Treatment SolutionsSolutions to meet the most stringent produced water requirements

We have total focus on integrating systems to meet the

PRIMARY

TREATMENT

SECONDARY

TREATMENT

TERTIARY

TREATMENT

Well head

Desanding

Separators

Desanding

Hydrocyclone

Liquid

Hydrocyclone

Degasser/

Flotation

Tertiary

Treatment

Solids

Cleaning

P r o d u c t i o n

F l u i d s

l

ALDERLEY

METERING

SYSTEMS

g

e

Clean Water out

The increasing water cut, normally

resulting from the age of the assets,can have a signicant effect on thehydrocarbon process train; together with

a detriment to the environment if it is

discharged prior to suitable processing.

No single piece of equipment can

tackle the complex process of treatingproduced water to meet increasingly

stringent regulations for discharge or

reuse.

At Alderley, we have a long experience

in the management and processingof produced water, together with

handling some of the more difcultapplications. We can offer you advice

and guidance through a range of

services and technologies to ensure

you meet production and producedwater treatment goals. We provide the

complete solution, from stand-alone or

fully integrated, skid mounted produced

water treatment systems covering

Primary, Secondary and Tertiary

Treatment processes.

Installation and delivery is implemented

in-house, including all design

project management, engineering,

procurement, construction installationand commissioning.

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However stringent your produced water treatment requirements, we can design and supply a system that meets your needs,surpasses environmental constraints while maximising the income from the oil/gas eld assets.

• Vast experience in offshore, onshore and FPSO applications

• Highly efcient compact solutions• Guaranteed to meet your compliance levels

• Full range of solutions covering all areas of produced water treatment processes



Primary TreatmentWorldwide experience in delivering the solution you need on time and on budget

emands of the oil, gas and petrochemical industries

Customer/Contractor Project Description

Saudi Arabian

Oil Company

Snamprogetti

Khurais Central Processing

Facility, Saudi Arabia

8 off compact otation units in 4 parallel streams. Each stream comprises

2 CFUs in series to treat 225000 bwpd. The system is designed to achieveless than 10ppm oil-in-water at the outlet. Vessels were manufactured fromlow temperature carbon steel with glass ake lining.

AOIC (operated by BP

Exploration)

Halliburton Internation

Inc.

Azeri, Chirag, DeepwaterGunashli (ACG) Phase 3 -

DUQ platform, Azerbaijan

Produced water treatment modile comprising 5 off AP20 deoilinghydrocyclone vessels, 3 off AP50 desanding hydrocyclone vessels and 1 offdegasser vessel. The package outlet specication is 29mg/l oil-in-water and

98% removal of sand particles above 50 microns. The hydrocyclones were

manufactured from duplex stainless steel and the degasser from carbonsteel with glass ake lining.

Murphy Sabah Oil

Co. Ltd/MDFT (SBM &

MISC)

Kikeh FPSO, Malaysia 2 off AP20 deoiling hydrocyclones designed to treat 151000 bwpd to

meet the discharge requirement of 20ppm oil-in-water. Vessels weremanufactured red from carbon steel with glass ake lining.

BP/Aker Solutions Skarv and Indun FieldsFPSO project, Northern

North Sea, Norway

Produced water treatment package consisting of 2 off AP20 deoilinghydrocyclone vessels, 1 off compact otation unit and 1 off oil adsorption

media unit. The target outlet oil-in-water concentration is 5 ppm

downstream of adsorption media. All vessels were manufactured from

duplex stainless steel.

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3

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4

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The primary treatment of producedwater in itself involves multiple

technologies – from upstream

sand removal utilising solid/liquid

hydrocyclones at wellhead conditionsthrough multi-phase separators and

collection vessels to further solid/liquidand liquid/liquid hydrocyclones.

At Alderley we have a proven track

record of delivering solutions that meet

or exceed your expectations on every

level – from performance to timescale tobudget.

• Upstream sand removal • Separators/collection vessels • Deoiling hydrocyclones • Desanding hydrocyclones •

A world of experience

Extensive, global references lists are available covering all technologies and applications to demonstrate our capability and

delivery. Please see below for examples of just a few of the projects we have delivered.



Ultimate Efciency Desanding HydrocyclonesProduced water desanding with exceptional performance

We have total focus on integrating systems to meet the

Solid/Liquid Hydrocyclone

Operation

A desanding hydrocyclone uses the rapid

increase in rotational velocity to createcentrifugal acceleration of the uid. This

forces the solids towards the outside

of the hydrocyclone liner, before they

are dropped into the vessel where they

are accumulated. Discharge of solids

from the accumulator can be manual or

automatic to suit your application needs.

Whether you are removing solids from

production uids to protect downstream

equipment or treating produced water

for discharge or re-injection, ourdesanding hydrocyclones use the latest

technology to meet the most diverse of

requirements.

Considering throughput, pressure drop,reliability and the efciency of solids

removal are all important factors when

specifying a hydrocyclone, the Alderley

desanding hydrocyclone is designed to

tolerate higher pressure drops and pass

higher ow rates to bring highly efcientsolids removal – all in the most compact

of vessels.

AP-50 desanding cyclones

• High efciency design (removal down

to 10 microns)• High online turndown (>5:1)• Compact vessel ideal for offshore

applications

• High erosion resistance

(manufactured from high purity

alumina)• Individually removable or cartridge

design

• Continuous or batch sand removal

• Easy integration with solids clean-up

and disposal systems

• Low maintenance

3 x 50% desanding hydrocyclones with internal accumulators



Highest Performing Deoiling Hydrocyclone A liquid/liquid hydrocyclone that reduces oil-in-water levels to less than half that of some hydrocyclone

designs

emands of the oil, gas and petrochemical industr ies

Deoiling Hydrocyclone

Alderley’s industry leading AP-20

deoiling hydrocyclone reduces outlet

levels of oil-in-water to less than

half that of other hydrocyclones.

Designed and manufactured in-houseit has been eld proven and is used

extensively both onshore and offshore.

With high efciency, high online

turndown and high erosion resistance,this hydrocyclone offers a cost-

effective, proven solution that is

regularly utilised in new projects

and for retrotting old systems. The

liner can be tted to existing vessels

without the need for removal of thevessel or any hot work. It is unaffected

by motion and suitable for vertical and

horizontal vessels.

We have a range of eld evaluation

units that shall demonstrate the AP-20’s superior performance.

From a single skid mounted

hydrocyclone vessel to a fully

integrated package with our deoilingand polishing equipment. Alderley

has demonstrated track record

of delivering total solutions to the

customer needs.

Liquid/Liquid Hydrocyclone Theory

Produced water is channelled into the hydrocyclone head tangentally to the wall.

The multiple tangential inlet design combined with a tapering internal geometry

creates an accelerating vortex in the uid as it ows through. Because of the

difference in density between the oil and water, the induced centrifugal forcepushes the oil into a central core. Careful differential pressure control is used to

remove the oily core in a countercurrent ow.

• Low investment and running costs

• Ideal for retrotting/upgrading

existing produced water treatment

systems

• Compact and efcient

• High turndown

• High erosion resistance

• Low fouling

Oily water

reject Inlet

Clean water

outlet

Hydrocyclone Package


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Secondary Treatment for Produced Water Efcient complementary technologies to further reduce oil-in-water levels

At Alderley we have vast experiencein complete produced water treatment

solutions to meet even the most

demanding requirements. Secondary

treatment conditions produced waterand solids in preparation for discharge

or further polishing. Hydrocyclonesprovide excellent removal of sand

and free oils in water but the latest,

stringent regulations often require

complementary technologies to

reduce the levels of oil and other

contaminants further.

Alderley’s IGF and CFU systems may

also be used as the primary stage of

treatment where low pressure drop

combined with efcient oil removal is

required.

Alderley can provide a range of

secondary separation processes

along with project management and

customer support to deliver a fully-integrated package on time and on

budget.

Solids Cleaning

Solids recovered from a separator or hydrocyclone, are cleaned to stringent

environmental standards prior to disposal. The system recirculates the sand

from the accumulator vessel multiple times to attain the desired oil-on-sandconcentration. A guaranteed level of oil on the solids can thus be achieved.

Alderley’s solids treatment system design is such that it can be incorporated as

necessary in the overall produced water treatment package to meet your project

requirements for solids disposal.

Induced Gas Flotation (IGF)

We provide two and four cell Induced Gas Flotation (IGF) systems to meet the

performance requirements of your application. Our IGF works by recycling gas

bubbles into the produced water. These bubbles adhere to solids and oil within

the produced water and cause them to oat to the top of the vessel where they

are skimmed off. The IGF vessels operate a controlled residence time system foreach cell to maximise the efciency of the system.

Chemicals may also be added to the system to improve the adherence of

particles and break down emulsions. We will advise on the necessity for the use

of chemicals during our detailed design service to you.

Degassers

Typically used downstream of hydrocyclones, the Alderley degasser design can

halve the outlet oil-in-water levels. Alderley can design and supply a degasser to

t your process requirements and needs. Produced water degassers are typically

operated at close to atmospheric pressure, the produced water entering the

vessels ‘de-gasses‘ liberating millions of tiny gas bubbles that adhere to residualoil requirements and ensure maximum hydrocable recovery.

Compact Flotation Units (CFU)

Alderley’s CFU utilises our proprietary swirl device hydrocyclone, resulting in a

‘soft spin’ cyclone. Our design has been optimised to maximise oil recovery while

minimising the use of oatation gas. With our multi step pressure drop inlet wemaximise the efciency while reducing chemical usage.

We are world experts in

meeting even the most

demanding of produced

water treatment

requirements.

Hydraulic induced gas

oatation unit 1 x 4 cell mechanical induced gas oatation vessel


http://slidepdf.com/reader/full/alderley-pwt-brochure 7/8emands of the oil, gas and petrochemical industries

Tertiary Produced Water TreatmentWhere stringent standards are required for reinjection or environmental discharge

Nutshell Filters

Alderley’s range of polishing ltersusing nutshell media are typically

used onshore to remove the nal free

oil and suspended solids entrained inthe produced water.

Our superior design of media

management minimises backwash

duration while stimulating media

attrition typically caused by othermechanical machinery.

Adsorption Fil ters

Our advanced adsorption lters utilise

a range of cartridges and bulk media

to treat dissolved oils and organicssuch as BTEX (Benzene, toluene,

Ethyl Benzene and Xylene) as well

as free oil to achieve the highest

environmental standard required.

Cartridge Filters

Alderley’s cartridge based technologies

cover both particulate and oil removal

for polishing prior to water injection.

Based around a range of bothcartridge and inline proprietary

designs our coalescing technology are

used to maximise and enhance the

performance of traditional separation

equipment, or the stand polishingstage or simply as a guard lter to

protect downstream equipment.

Alderley provide a range of polishingtechnologies including nutshell media

lters, cartridge lters and adsorption

lters. These systems remove the

very ne suspended solids and oildroplets, and the adsorption lters

treat dissolved oils and organics suchas BTEX (Benzene, Toluene, Ethyl

Benzene and Xylene).

Supplied as either stand-alone or fully

integrated skid-mounted systems,

these units can be manufactured at anumber of international locations within

Alderley’s global fabrication network,

as appropriate to the project build

location and schedule needs.

Nutshell lter vessel

Oil adsorption media vessel


http://slidepdf.com/reader/full/alderley-pwt-brochure 8/8Solutions to meet the most str ingent produced water requirements

A total focus on the needs of the oil and gas industry

Contact us for your metering, hydraulic control systems and produced water treatment needs

www.alderley.com

Produced Water Treatment Systems Brochure Rev. 3

Registered Ofce Alder ley plc

Alderley House Arnolds Field Estate

The Downs, Wickwar

Gloucestershire, UKGL12 8JDTel: +44 (0) 1454 294556

Alder ley FZE

Dubai, UAE

Tel: +971 4804 2777

Alder ley ICDDammam, Saudi ArabiaTel: +966 1 3810 0262

[email protected]

Regional Facilities Alder ley Process Technologies

Wickwar, UKTel: +44 (0) 1454 294556

Aberdeen, UKTel: +44 (0) 1224 300451

Alder ley East Asia

SingaporeTel: +65 6408 0151

Documents

Alderley PWT Brochure