LNG Capability and Experience

WorleyParsons has a long history of developing and supporting world scale LNG facilities. WorleyParsons’ track record in LNG production extends from opportunity evaluation studies and concept/technology selection, through front end engineering design (FEED), and detailed engineering, procurement and construction management (EPCM) for both greenfield and brownfield LNG developments. Similarly, our experienced teams have played key roles in a variety of LNG terminal/regasification projects including those with novel concepts, such as LNG storage and regasification on the same vessel, regasification on a separate floating facility, and sideby-side LNG transfer from an LNG carrier.
WorleyParsons understands the demands, scale and integration requirements of the LNG industry. Our specific service areas include:
• Receival/slug-catching facilities
• Gas pretreatment (dehydration, carbon dioxide removal, sulphur removal and mercury removal)
• Liquefaction studies
• Utilities
• Storage and loading
• Receival and regasification terminals
• Brownfield projects/modifications
• Operations support
WorleyParsons has also drawn extensively from its strong offshore heritage for the development of innovative offshore LNG concepts for both liquefaction/production and receival/regasification. Our extensive infrastructure track record gives us capability to also meet the infrastructure requirements of LNG facilities, such as jetties, dredging, site preparation, roads, buildings and environmental evaluation and management.
This combined experience, coupled with our strong overall upstream oil and gas design and project execution capability, enables effective outcomes for our customers by producing facilities that are safe, reliable, efficient and cost effective.

28+ LNG projects
LNG projects in 14+ countries

Capability Overview

Greenfield LNG
WorleyParsons’ experience in greenfield LNG developments extends from opportunity evaluation, concept/technology selection, FEED and EPCM, to commissioning, start up and operations support. Along with our joint venture partners we have pioneered
the development of the world’s first moduralized LNG plants including the North West Shelf Phase V Development and the Pluto LNG  project.
Brownfield LNG
Expansion of existing LNG facilities is becoming more prevalent as LNG demand increases. WorleyParsons has extensive experience in plant optimization and brownfield LNG projects including the coordination of expansion projects with existing operations. Our work has covered Australia, Asia, and the Middle East.
Offshore LNG
Offshore projects require many design considerations to be integrated into the
development process, making strong offshore experience a vital success factor.
WorleyParsons’ offshore heritage, coupled with our LNG experience, puts us at the
forefront of developments in offshore LNG. This is exemplified by our key role in the
conceptual engineering phase of what is planned to be the world’s largest offshore
LNG project.
WorleyParsons has the expertise to deliver both small and large LNG terminal/regasification developments and has particular strengths in the application of novel concepts and innovative designs. Our experience in floating production and off loading systems, combined with expertise in pipelines, storage, loading and regasification, makes WorleyParsons a contractor of choice to perform terminal
designs and construction management. 
Mid and Small Scale LNG
Mid and small LNG plants are becoming increasingly prevalent in the industry and are particularly important for monetizing stranded gas, debottlenecking existing facilities and providing the growing transport fuel market. WorleyParsons has a variety of experience in these smaller scale LNG projects including both mid (<2 MTPA) and small (<0.2 MTPA) facilities.
LNG Modularization
WorleyParsons is a recognized global leader in the modularization of process plants, with experience spanning from the North Slope of Alaska to the Caspian region and the remote North West Shelf of Australia. In conjunction with our joint venture partners, we have used this experience to pioneer modularization in LNG plants. LNG modularization has been proven to reduce costs, schedule, industrial relations risks and environmental impacts and is particularly applicable to remote regions and those with high local labor costs.
LNG developments can have considerable infrastructure requirements which often comprise a significant portion of the total capital cost and are usually a schedule constraint and a key environmental risk of a project. WorleyParsons has a large infrastructure group
with a track record in delivering outstanding integrated solutions to onshore and offshore LNG facilities. We can address all the infrastructure needs of a LNG project including geosciences, ports and jetties, dredging, coastal analysis and civil engineering.
Environmental decisions made during all phases of a project are a major determinant of the ultimate business outcome of the project. WorleyParsons’ global team of over 500 professionals in environmental sciences assists customers throughout the project life cycle, from data acquisition, decision making and design through to project implementation, operations and decommissioning.
Local Presence
WorleyParsons has over 32,200 people in offices across 38 countries and this enables us to provide our customers with local presence, local knowledge and
local understanding in virtually all parts of the world where LNG developments are contemplated. Our commitment to local presence enables us to bring this local knowledge and relationships to our customers’ projects often making WorleyParsons the partner of choice for LNG projects.
Select Front-End Services
Select, the specialist front-end division of WorleyParsons
, utilizes extensive experience in total project delivery to aid customers in making the correct decisions during the initial stages of an LNG project in order to lock in the greatest value for the ultimate business outcome. Such decisions can include, technology selection, plant configuration, plant sizing, site selection together with determining the optimal contracting and construction strategies.

Greenfield LNG

WorleyParsons has the ability to integrate multidiscipline engineering, procurement, construction and project management expertise with licensed technology to deliver innovative and cost effective solutions for customers’ LNG facilities. Modern greenfield LNG projects present a myriad of challenges and require many areas of expertise to ensure quality evaluation and execution decisions. WorleyParsons can provide the skills to progress through each phase of a greenfield project from screening studies to construction management and operations support. In the early stages of development, our Select team will assist to identify the critical steps and decision points that will maximise the
value of the project.
WorleyParsons understands what it takes to formulate a successful development and our team of global experts can provide quality assistance in site evaluation and selection, environmental assessment, infrastructure requirements, pipeline design and routing, LNG technology selection and plant design, contracting strategies, procurement strategy, construction methodology, safety considerations and risk analysis. In addition to our experienced personnel, we have various technical and project management tools, in-house knowledge systems and access to state-of-the-art technology to ensure the optimal project execution solution for greenfield LNG projects.

Project: Pluto LNG Development
Customer: Woodside Energy Ltd

Woodside is developing its Pluto offshore gas field through an offshore production
system and an onshore LNG production plant with an initial capacity of five to six
million tonnes per year. WorleyParsons has key roles in the FEED and EPCM joint
ventures executing the offshore platform, onshore plant facilities and associated
site infrastructure and marine facilities. The development scope includes a series
of deepwater subsea wells, tied back by flowlines to a remotely operated platform
which will export the gas to an LNG plant via a subsea trunkline. The onshore
LNG facilities include slug-catchers, gas pre-treatment, liquefaction, fractionation
and storage facilities together with utilities and LNG loading jetty.

Project: Papua New Guinea LNG Project
Customer: InterOil

InterOil identified a project development concept for the commercialization of gas resources within PNG through an LNG export facility. WorleyParsons Select was engaged to determine the technical feasibility of the project, quantify the cost and schedule for the project execution, and provide input for the project economics. WorleyParsons brought a unique blend of LNG, PNG, pipeline and infrastructure experience to the project to address the entire project scope, including elements such as compression stations; onshore, nearshore and offshore pipelines; reception
facilities; LNG facilities and technology selection; LPG facilities infrastructure; and jetty and loading equipment. WorleyParsons’ Select also addressed contracting strategies, major execution risks, construction methodology and project schedule.

Papua New Guinea

Brownfield LNG

WorleyParsons’ extensive plant maintenance and optimization experience provides additional value to customers’ brownfield LNG projects.
Brownfield projects are currently responsible for the majority of new LNG production capacity being developed globally. Existing facility expansions are vital to meet growing LNG demand and are often ‘high value’ developments due to the cost reductions gained from sharing existing infrastructure and utilities.
WorleyParsons has accumulated a wealth of valuable knowledge and experience associated with modifications to existing plants through our numerous brownfield projects in facilities around the world. As a result, WorleyParsons is recognized as a global leader in these asset (Improve) services. We bring experience in LNG capacity expansion projects that varies in scope from debottlenecking through to the addition of additional liquefaction trains and associated facilities including pipelines and receiving facilities, treating and dehydration, fractionation with LPG storage and loading, storage tanks, utilities expansions, loading facilities and additional ship berths.
WorleyParsons’ Improve experience enables us to bring insight to customers’ brownfield LNG projects, including the knowledge that one of the keys to a successful brownfield LNG project is well planned integration with the existing site facilities. Through our experience and specialist tools, each interface with the existing facilities is identified and engineered for timely and successful operation.

Project: Design Engineering Managing Contract
Customer: Brunei LNG

WorleyParsons conducted extensive services for a series of modifications to the Brunei LNG plants to extend the life of the facilities for a further 30 years. The work undertaken included the preparation of screening studies, feasibility studies, basis of design, basic design and engineering packages, detailed design and EPC contract documents. WorleyParsons also managed consultants and supplied specialist personnel on secondments to Brunei LNG, and is currently providing the Integrity and Business Improvement services for the operating asset.

Project: Extended Liquefaction Study
Customer: Woodside Energy Limited

WorleyParsons Select conducted a study to determine the feasibility of operating an existing base load LNG facility in extended end flash mode and reliquefying the increased boil-off gas (BOG), essentially increasing the LNG capacity of the plant by 1 MPTA. The study confirmed that installation of additional BOG compression would increase LNG production and that BOG could be liquefied without further treatment and returned directly to the LNG tanks for loading. The re-liquefaction facility design was based on a single mixed refrigerant process, the most appropriate for 1 MTPA plants. The study also optimized the overall configuration within the constraints of the existing plant and developed layouts and cost estimates to support both the
greenfield portion and the significant brownfield modifications required.

Offshore LNG

WorleyParsons’ strong offshore heritage, along with our LNG development know-how, make us a contractor of choice for offshore LNG projects.
Offshore LNG projects are becoming a reality as a result of technology improvements, increasing LNG demand and increased project scale. WorleyParsons’ combined offshore experience and LNG experience means that we are continuing to play a key role in developing offshore LNG as a viable means to monetizing challenging offshore gas fields. There are several potential advantages of offshore LNG including elimination of expensive pipelines as well as overcoming site and infrastructure development restrictions. In addition, offshore LNG may offer environmental benefits by avoiding sensitive coastal areas.
WorleyParsons can apply relevant experience from engineering design for offshore platforms, topsides equipment and floating production facilities to provide optimized solutions for customers’ offshore LNG production and receival/regasification developments. WorleyParsons has the broad range of expertise and skills to manage the design,construction, installation, hook-up and commissioning considerations to successfully deliver these highly complex projects.
WorleyParsons also has experience in development work on both emerging floating LNG facilities and on offshore LNG projects where fixed substructures are preferred.

Project: Browse LNG Development
Customer: Woodside Energy Ltd

Woodside and its partners have extensive gas reserves in the Browse Basin off Western Australia’s Kimberley coast and is planning on using these as the basis of a new LNG production hub in this region. Woodside has engaged a WorleyParsons Select joint venture to undertake the
conceptual studies required in order to advance the project to Phase 3 (FEED). The initial development concept involves offshore and/or onshore facilities and 1-3 liquefaction trains with capacity to process up to 15 million tonnes of LNG per year.


WorleyParsons provides an innovative approach to LNG terminal developments utilizing our expertise to deliver novel designs. Our regasification know-how, combined with our experience in both onshore and subsea pipelines, floating production, storage and off loading systems, enables WorleyParsons to offer novel approaches to the challenges associated with locating, designing and constructing LNG receiving and regasification terminals. WorleyParsons’ expertise covers all aspects of terminal design to ensure cost effective integrated solutions for our customers including:

• Jetty and berthing design
• Mooring and breasting
• Environmental assessment of the terminal to facilitate approvals
• Safety and emergency procedures

• Analysis of meteorological and ocean data to provide
a safe and effective loading and layout
• Storage options
• Loading design
• Pipelines from regasification to delivery

We have experience in onshore and Floating Storage and Regasification System (FSRU) with FSRU design
features including:

• Side by side LNG transfer in open sea
• LNG carrier manoeuvrability

• LNG spill mitigation design
• Innovative loading arm extensions

Project: Singapore LNG Terminal
Customer: PowerGas

To increase the security of Singapore’s domestic gas supply, PowerGas is constructing the nation’s first LNG regasification terminal on Jurong Island. WorleyParsons is providing the basis of design and front-end engineering design including: the development of the EPC contractor tender documents and wubsequent evaluation and recommendations. WorleyParsons’expertise
in hydrocarbons, power and infrastructure coupled with a 20 year heritage in Singapore, and a global process capability are critical to the success of this important project..

Project: PMC Services for Jiangsu/Dalian/Tangshan LNG ReGasification Terminals
Customer: PetriChina

This project involved establishing a project managemnt framework including an execution plan and associated procedures, for PetroChina to manage the delivery of the three LNG re-gasification projects. The initial configuration of each termial consited of 3.5 million tonnes per annum receiving capacity with two storatge tanks, each of capacity 160,000 cubic metres. The scope also included a detailed peer review of the FEED for the Jiansu terminal to be build on a man made island with
a 2km long jetty and LNG regasification by both Open Rack Vaporiser (ORV) and Submerged Combustion Vaporiser (SCV). The peer review associated with this terminal was conducted to ensure that the engineering met the requirement for a ±10% capital estimate and contain sufficient information for a rapid EPC contract award.

Mid & Small Scale LNG

WorleyParsons is expanding its role in mid and small scale LNG plants by facilitating the development of these smaller scale LNG plants.
Mid scale LNG plants are smaller than base load plants, with capacities ranging from 0.5 to 2 MTPA. These plants are targeted towards monetizing smaller stranded gas fields, debottlenecking base load facilities and as a method to convert waste gas, which would otherwise be flared, into a valuable product stream for existing oil production facilities. Without the economies of scale enjoyed by large base load facilities these mid scale plants have to employ simple, robust, liquefaction cycles whilst still maintaining high thermal efficiencies available via the use of aeroderivative gas turbine drivers. WorleyParsons has experience in designing these plants for both onshore and offshore floating applications as well as in the liquefaction of extended end flash gas to debottleneck base load LNG plants.
Small scale LNG plants, sometimes called peak-shaving plants, are much smaller than base load plants. Such plants are suitable for supporting niche LNG markets which are becoming increasingly important, especially for remote power generation.and in the transportation fuels sector as a substitute for gasoline or diesel.
Small scale LNG plants can be developed to occupy small amounts of space which makes them adaptable for locations close to niche markets. Seasonal demands can require gas to be liquefied and stored for the peak usage season and small LNG plants can provide a buffer to meet this additional demand. We are also ideally placed to provide study phase work and full design, procurement and construction management for both micro and mini LNG facilities for our customers.

Project: PTTEPS LNG Plant
Customer: Thailand PTTEPS

PTTEPS proposed to install an LNG facility for the S1 Production Station in Lankrabrue,  Kampangphet province, Thailand. WorleyParsons Select conducted the feasibility study for a small scale LNG plant to produce vehicle transportation fuel. The project consisted of  pre-treatment, liquefaction, storage and loading systems for road tankers. WorleyParsons
evaluated various liquefaction technologies for plant sizes from 5 - 20 mmscfd of feed gas to determine the most suitable LNG process. The study provided cost estimates, equipment layouts, utility requirements, driver selection and thermal efficiency estimates.

LNG Modularization

WorleyParsons specializes in the evaluation, design and implementation of projects requiring pre-assembled modules for complex process facilities.
Modular solutions within the complex processing industry come into their own when specific project challenges arise, such as:
• Remote and hostile environments
• Minimizing disruption to ongoing plant operations
• Avoiding on-site labor shortage or industrial relations issues
• Improving cost and schedule, when compared to traditional “stick-build” methods by utilizing low cost specialist fabrication yards, such as those found in South East Asia
Beginning with the design of the first pre-assembled modular facilities for the remote North Slope in Alaska, WorleyParsons has gained extensive world wide experience in modularization. WorleyParsons has been involved in over 50 onshore projects in 30 countries that have required modular solutions including the design of more than 1,300 modules with a total weight of over 435,000 tonnes. These modules have ranged in size from 5,000 tonnes to smaller modules.
In parallel, the experience gained within the offshore industry has enabled WorleyParsons to bring major innovations to modularized construction. Whilst all offshore topside design is essentially modularized, it is in the area of the large floatover topsides - weighing up to 22,000 tonnes in a single mega module - that the WorleyParsons reputation has excelled in recent years. The weight and space savings experience inherent in offshore modular design is directly relevant for use in an onshore LNG plant setting.
This modularization skill set was recently employed within the North West Shelf LNG Phase V expansion project and is being used extensively on the Pluto LNG development.

Project: North West Shelf LNG Phase V Expansion Project
Customer: Woodside Energy Ltd

The US$2B LNG expansion of the Karratha Onshore Gas Plant pioneered modularization for LNG plants. It was the first large scale liquefaction plant in the world to be designed and built in pre-assemblied modules and racks. The key components of the facility consisted of more than 70 modules constructed in Batam, Indonesia and shipped to the Australian coastal site on some of the world’s largest heavy transport ships. The tallest and heaviest pre-assembly was 36m high and weighed 2,000 tonnes. WorleyParsons, as part of a joint venture, is providing EPCM
services. The scope includes the design, construction and commissioning of a fifth liquefaction train, together with an additional fractionating unit, acid gas recovery unit, boil-off gas compressor, two new gas turbine power generation units, a second loading berth, a new fuel-gas system compressor and other related facilities.


WorleyParsons’ large Infrastructure division specializes in providing
integrated infrastructure solutions to major energy and resource projects
including LNG developments.
WorleyParsons has an enviable reputation as a provider of quality infrastructure EPCM services to large and small
LNG projects, and is recognized for the integration of port, road/rail and general infrastructure facilities with complex
process plants.
WorleyParsons has specialist expertise in all areas required to address port and plant site requirements, as well as
a deep understanding of the environmental, coastal and geotechnical constraints of the most complex LNG projects.
These capabilities include:
• Master planning: site analysis, optimized infrastructure layouts, utilities, compatible land use
• Geotechnical: engineering geology, geotechnical and hydrogeological engineering
• Marine facilities: wharves, jetties, ports, moorings (including construction/upgrading to allow transport of modules)
• Ocean analysis: dredging, tidal, ocean and metocean analysis
• Civil and structural: buildings and site facilities
• Road infrastructure (including construction/upgrading to allow transport of modules)

Project: The NWSV LPG and LNG Jetties
Customer: Woodside Energy Limited

The North West Shelf Venture’s LPG and LNG berths are located adjacent to NWS LNG production plant and are utilized for the export of LPG and LNG cargos. Safety of the cargo and vessels is a primary requirement, which is heavily dependent upon vessel conditions at the berth and in the channels. WorleyParsons performed a detailed numerical vessel motion and mooring analysis study for these facilities using in-house computer modeling capabilities. The limiting conditions for mooring lines were assessed to determine the maximum allowable cyclonic swell conditions at the berth. Under keel clearances along the shipping channel were also analyzed and
the results formed the basis of port operating procedures.

Project: Gorgon LNG Development
Customer: Chevron

WorleyParsons has been involved in the infrastructure elements of the Gorgon project for both its Barrow Island site and earlier Burrup Peninsula study. WorleyParsons provided civil and marine engineering advice from site selection to preliminary concept definition, including cost estimates and scheduling. WorleyParsons also undertook preliminary nearshore and onshore geotech investigations for the Gorgon project marine facilities and pipeline crossings on Barrow Island - a Class ‘A’ nature reserve - carrying out Karstic hazard and risk assessments of coastal limestones at the proposed plant and port sites and near-shore geotechnical investigations for the LNG export marine facilities and feed gas pipeline shore crossings.


WorleyParsons’ specialist environmental group provides sustainable environmental solutions to engineering challenges for all industry sectors.
Our business has been built on long term relationships, anticipating customer needs and delivery solutions. We are committed to working with our customers to create solutions to meet the green challenge while staying in the black. EcoNomicsTM is our range of tailored, expert services and proprietary technologies that profitably embed environmental, social and financial sustainability into project delivery, across the asset life cycle.
Environmental and Social Impact Assessment
Providing expertise in impact assessment, WorleyParsons addresses social licence, regulatory approvals, shareholder support and sustainability. Through an interdisciplinary process and strong project management, we can assist customers in enhancing corporate relations, managing stakeholder needs, exceeding shareholder expectations and ensuring projects meet the triple bottom line.
Environmental Strategy and Liability
WorleyParsons acknowledges that all environmental decisions are also economic ones. We support customers’ management in choosing the best options on governance, strategy, finance and risk with high-level environmental strategic services.
WorleyParsons provides comprehensive environmental and social input into project design at concept Select, pre-FEED, BOD and FEED stages, helping to assure timely project delivery and streamlined project approval.

Project: Economic Analysis of Environmental Options for Offshore LNG Development
Customer: Woodside Energy Limited

WorleyParsons provided a strategic analysis of the costs and environmental benefits (private and societal) of engineering design options for a major offshore LNG development. The analysis identified the most environmentally and socially beneficial designs and development approaches. The project included a fully integrated environmental analysis at each stage of the engineering design process along with detailed economic analyses to identify the most socially and  environmentally beneficial engineering design approaches for each stage of the project.

Project: Damietta LNG
Customer: Union Fenosa

WorleyParsons carried out comprehensive environmental and social impact assessment studies for Egypt’s first major LNG project located on the Mediterranean Coast. The work included baseline surveys, impact assessment, social consultation and public meetings, and the project was granted full approval by the Egyptian Environmental Affairs Agency. WorleyParsons also provided construction monitoring services and continues to provide comprehensive environmental monitoring services for onshore and offshore ongoing operations including seawater, sea sediment, effluent and groundwater quality monitoring.

Front-End Services


Decisions made during the initial stages of a project have the greatest impact on the ultimate business outcome.
Select is the specialist front-end division of WorleyParsons and is an integral part of the WorleyParsons global hydrocarbons project delivery capability. Utilizing our extensive experience in total project delivery, asset operation and industry best practice, Select
provides pre-FEED (Phase 1 and 2) services to asset owners, operators and investors. The areas of expertise provided by Select include:
Greenfield development: Strategic planning, opportunity evaluation, concept selection and technology selection for major and marginal new field opportunities.
Brownfield optimization: Deliver cost effective increases in production to deliver wholeof-life return from existing facilities.
Strategic advice and financial analysis: Strategic advice to asset owners, banks and governments based on a thorough understanding of the LNG business value chain. We also offer investment advice with accurate and reliable development cost and schedule data.
The early (pre-FEED) stage of any project must provide the key decision support packages needed to decrease risk and provide the economic basis to attain project sanction. For LNG projects this early stage work typically includes:
• Technology selection across a range of possible input feed streams
• Plant throughput sizing and final product specification
• Major optimization initiatives to be pursued through design
• Shipping studies and tank sizing
• Plant site selection and supporting infrastructure requirements
• Risk assessments
• Cost and schedule estimates (including benchmarking with past and present projects)
• Comparison with alternative gas monetization development options
Operating within the prime value-adding end of the project development road map, Select offers the diverse skill set across a range of disciplines required for LNG plant developments.
500+ specialist front-end personnel
Technology Neutral
15+ MTPa LNG plants configured