Fpso process flow diagram

FPSO is a floating vessel located near an offshore oil fieldwhere oil is processed and stored until it can be transferred to a tanker for transporting and additional refining.

FPSO / FLNG Gas Processing

The use of FPSOs means that a tanker needn't sit idle while a production facility produces enough oil to fill it. Today, there are about such vessels operating worldwide.

FPSOs have also become more popular in the oil industry because of their lower cost relative to traditional offshore oil platforms.

This amount does not include well completion costs, ongoing facility production maintenance costs, and platform decommissioning costs the cost of removing the platform at the end of its useful life.

fpso process flow diagram

Oil companies are attracted to FPSOs because of the terms of their use. Often, FPSOs are leased by oil producers. This has two advantages. First, oil companies have greater flexibility to manage fixed production assets depending on market conditions.

If needed, companies can take on or offload FPSOs to meet changing production needs. This is more difficult with fixed assets that take time to build and finance. Second, oil companies can better manage their balance sheets with leases. Leasing allows companies to use infrastructure without increasing debt or leverage. In contrast, if a company needed to self-finance an FPSO instead of leasing it, this would be done by increasing on-balance sheet debt, which can adversely affect a company's financial metrics and ratios.

FPSO / FLNG Gas Processing

Finally, FPSOs are suitable for a wide range of water depths, environmental conditions and can be designed with the capability of staying on location for continuous operations for 20 years or longer.

This greater flexibility and versatility makes FPSOs the preferred offshore production method in the oil industry today. Company Profiles. Your Money. Personal Finance. Your Practice. Popular Courses.The swivel transfers the oil and gas from the reservoir via the anchored part of the turret which is stationary to the ship side of the turret which rotates with the FPSO.

The turret and swivel allows deployment of the FPSO to locations with severe weather, and ensures safe operation in the most demanding conditions. The flare tower has a key safety function to safely burn and dispose of gas from the process plant in case of process upsets or in case the gas in the process facilities must be released for other reasons. The flare tower is connected to the FPSO flare system, which collects all relief and gas vents from the process facilities.

Flaring of gas is normally limited by using the gas for fuel, gas export or reinjection. When the gas is separated from the oil it must be compressed and processed to be used as fuel, exported or reinjected into the reservoir. The pressure of the gas is increased in the gas compressor in order to export or reinject the gas. Normally the process includes the treatment of the gas to remove water and liquid hydrocarbons, giving a clean hydrocarbon gas that can be exported, reinjected or partly used as fuel to power the FPSO.

The main process plant on the FPSO is the separation facilities, where the raw well stream from the reservoir is split into stabilized crude oil, hydrocarbon gas and produced water.

The oil is heated to boil off excess gas and remove water, thus making the oil stable for storage. Residual oil is removed from the produced water before overboard disposal or reinjection to the reservoir.

The most common processing is done via gravity separation in large pressure vessels, taking advantage of the difference in density between oil, gas and water. The stabilized oil is then stored onboard the FPSO. Processing of oil requires large amounts of heat to increase the temperature of the well stream sufficiently to enable processing in the Process plant. This heat is supplied via the heating medium system, normally operating with a closed loop of pressurized, heated fresh water, or in some cases steam.

The heat is most commonly generated from the hot exhaust coming from gas turbines via large heat exchangers called waste heat recovery units. In some cases supplementary heat is also produced via fired boilers. Large amounts of power is needed to operate the FPSO, and since operation is normally done in remote areas this power must be generated on board the FPSO.

There are two main forms of power generation, either by gas turbine generators or by steam driven generators.

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The power generation is fuelled by hydrocarbon gas from the process facilities on board the FPSO, with diesel as backup fuel. Smaller diesel generators located in the hull supply essential and emergency power if the main power generation is not available, to ensure safe operation of the FPSO.Floating Production Storage and Offloading vessels, or FPSOs, are offshore production facilities that house both processing equipment and storage for produced hydrocarbons.

The basic design of most FPSOs encompasses a ship-shaped vessel, with processing equipment, or topsides, aboard the vessel's deck and hydrocarbon storage below in the double hull. After processing, an FPSO stores oil or gas before offloading periodically to shuttle tankers or transmitting processed petroleum via pipelines.

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Moored in place by various mooring systems, FPSOs are effective development solutions for both deepwater and ultra-deepwater fields.

A central mooring system allows the vessel to rotate freely to best respond to weather conditions, or weathervane, while spread-mooring systems anchor the vessel from various locations on the seafloor. Usually tied to multiple subsea wells, FPSOs gather hydrocarbons from subsea production wells through a series of in-field pipelines.

Once tapped by subsea wells, hydrocarbons are transmitted through flowlines to risers, which transport the oil and gas from the seafloor to the vessel's turret and then to the FPSO on the water's surface.

The processing equipment aboard the FPSO is similar to what would be found atop a production platform. Usually built in modules, FPSO production equipment can consist of water separation, gas treatment, oil processing, water injection and gas compression, among others.

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Hydrocarbons are then transferred to the vessel's double-hull for storage. Crude oil that is stored onboard is frequently transferred to shuttle tankers or ocean barges going ashore, via a loading hose. Loading oil from the stern of the FPSO to the bow of the shuttle tanker is known as tandem loading.

While gas is many times transferred to shore via pipeline or re-injected into the field to boost production. Permanently moored, FPSOs are viable development solutions for a number of different offshore field situations.

Because FPSOs can be disconnected from their moorings, these offshore production vessels are optimal for areas that experience adverse weather conditions, such as cyclones and hurricanes. Additionally, because FPSOs can be moved, they are a more economical solution for more marginal fields, in that the vessel can be moved to another development and redeployed once the original field has been depleted.

Also, FPSOs are an optimal choice for development when there are no existing pipelines or infrastructure to transfer production to shore. Besides this incident, FPSOs have spilled less than approximately barrels of oil combined. This Azurite FDPSO incorporates deepwater drilling equipment that will help to develop the field and can be removed and reused after all the Azurite production wells have been drilled.

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We provide high-calibre, professional training to the oil, gas and renewables industries. Learn More. NACE International With programs developed, peer reviewed, and taught by industry experts, NACE provides corrosion control training and certification to help students launch a career, broaden their expertise, and provide greater industry recognition and credibility. Wild Well Control Backed by a heritage of more than 40 years of well control experience, the Wild Well University Well Control Training Program delivers action-oriented curricula designed to challenge students in both individual and team performance scenarios.Natural gas production is increasing worldwide since natural gas is gaining market share as source of power.

Many gas fields have been discovered in deep sea areas. Several floating production and storage FPSO units are under construction or in planning phase.

During natural gas production process the gas must be treated to meet the specifications of marketable natural gas. Sour gases such as CO 2 and H 2 S are re-injected by gas injection compressors at high pressures.

Natural gas is fed to the on board power plant by fuel gas compressor solutions. Burckhardt Compression offers its compressor solutions as complete turn-key installations, engineered packages or bare shaft compressors.

Our in-house competence includes compressor design and sizing, pulsation and vibration studies, plant engineering, instrumentation and PLC programming. As a compressor OEM with more than years of experience we have been setting standards for leading valves and sealing technology.

This results in maximized uptime of the gas processing plants and maximized gas production. Depending on the size of the tanks, the load level of the liquefied natural gas LNGthe ambient temperature and the quality of the LNG tank insulation the amount of BOG per hour changes.

Typically the BOG can be fed to different processes:. Between the compressor stages gas side streams to feed e. Re-liquefaction, auxiliary engines or other processes allow multi-purpose compression and eliminate individual compressor equipment per process. Typically the BOG can be fed to different processes: Re-liquefaction Fuel gas supply for auxiliary equipment. This technology eliminates the need for gas pre-warming or compressor pre-cooling.It is informative that we read blog post very carefully.

I am already done it and find that this post is really amazing. Pages Home. FPSOs are preferred in frontier offshore regions as they are easy to install, and do not require a local pipeline infrastructure to export oil. When a tanker is chosen to transport the oil, it is necessary to accumulate oil in some form of storage tank such that the oil tanker is not continuously occupied during oil production, and is only needed once sufficient oil has been produced to fill the tanker.

At this point the transport tanker connects to the stern of the storage unit and offloads oil. Today, there are two main types of FPSOs, those built converting an existing oil tanker, and those that are purpose-built.

The FPSO design will depend on the area of operation. In benign waters the FPSO may have a simple box shape or it may be a converted tanker. Generally but not always the production lines risers are connected to a major component of the vessel, called a Turret, which allows the vessel to rotate in order to head into the wind and reduce environmental forces on the moorings.

In relatively calm waters, such as in West Africa, turrets can be located externally to the ship structure, hanging off the bow of the FPSO. For harsher environments like the North Sea, the turret is generally located internally.

How Do FPSOs Work ?

The turrets, mooring lines and risers can be designed to be permanently connected i. As continuous flaring is discouraged or disallowed in many areas of the world, the excess gas is generally exported through subsea pipelines. Floating production, storage and offloading vessels are particularly effective in remote or deepwater locations where seabed pipelines are not cost effective.

FPSOs eliminate the need to lay expensive long-distance pipelines from the processing facility to an onshore terminal. This can provide an economically attractive solution for smaller oil fields which can be exhausted in a few years and do not justify the expense of installing a pipeline. Furthermore, once the field is depleted, the FPSO can be moved to a new location.

The turret sinks beneath the waves and can be reconnected later. Article from Wikipedia, the free encyclopedia. Contact us:. Disclaimer "All images are sourced from the internet and are in the public domain. We claim no credit for any images or videos featured on this site unless otherwise noted.

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We are not responsible for content on any external website, and a link to such site does not signify endorsement. Information on this site may contain errors or inaccuracies; the site's proprietors do not make warranty as to the correctness or reliability of the site's content. Richard Paryor 12 July at Newer Post Older Post Home. Subscribe to: Post Comments Atom. FPSO Diagram. FSO Unit. LNG floating storage and regasification unit.The image below is a schematic flow diagram of a typical oil refinery that depicts the various unit processes and the flow of intermediate product streams that occurs between the inlet crude oil feedstock and the final end products.

The diagram depicts only one of the literally hundreds of different oil refinery configurations. The diagram also does not include any of the usual refinery facilities providing utilities such as steam, cooling water, and electric power as well as storage tanks for crude oil feedstock and for intermediate products and end products. There are many process configurations other than that depicted above. For example, the vacuum distillation unit may also produce fractions that can be refined into endproducts such as: spindle oil used in the textile industry, light machinery oil, motor oil, and steam cylinder oil.

As another example, the vacuum residue may be processed in a coker unit to produce petroleum coke. Linkedin Twitter Facebook Skype. Flow diagram of typical refinery. Schematic flow diagram of a typical oil refinery.From Wikimedia Commons, the free media repository.

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fpso process flow diagram

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fpso process flow diagram

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