Gas Gathering Systems and Oil Production Facilities by EN-FAB Inc
Gas Gathering Systems and Oil Production Facilities by EN-FAB Inc
EN-FAB Inc delivers gas gathering systems and oil production facilities with expert design, fabrication, and installation to improve efficiency, reliability, and field performance.
Engineering design and fabrication of equipment for onshore and offshore production facilities has been the mainstay of EN-FAB’s business. EN-FAB personnel are particularly adept in design, engineering, and construction of production equipment such as; 2 & 3 phase separators, heater-treaters, desalters, demulsifiers, glycol dehydration units, fuel gas skids, vapor recovery units, etc. Qualified service technicians are available for start-up service and commissioning. This combination of unique abilities has enabled EN-FAB, Inc. to be a leader in supplying Early Production Facilities and Systems.
An early production facility is a complete facility to produce oil and gas and dispose the produced water. This facility is usually located on land, but barge facilities are also common. The size range is usually between 5,000 to 60,000 barrels per day. All the equipment for treating the oil, gas, and water such as separators, heaters, scrubbers, power supplies, lighting, water treatment, etc. is provided as a package. The facility is usually all skid-mounted and is put in place, interconnected, and commissioned by EN-FAB, Inc.
EN-FAB desalters can help prevent expensive shutdowns by providing fast process recovery following upsets and are proven to be ideal for desalting challenging, crude grades.
When crude oil is brought to the surface by whatever means, it contains many undesirable impurities, including salts, suspended solids and water soluble trace metals/slits, iron oxides, sand etc. The EN-FAB desalter provides efficient separation of undesirable impurities, suspended in crude feedstocks.
The salt content in the crude oil varies depending on source of the crude oil. When a mixture from many crude oil sources is processed in refinery, the salt content can vary greatly.
The Purpose of Desalting
- EN-FAB desalters efficiently remove undesirable impurities, especially salts and water, from crude oil prior to distillation.
- Inorganic salts can become decomposed in crude oil preheat exchangers and heaters. As a result, hydrogen chloride gas is formed which condenses to liquid hydrochloric acid at overhead system of the distillation column, damaging expensive internals and downstream equipment.
- Sand or silt can cause significant damage due to abrasion or erosion to pumps, pipelines, etc.
- The calcium naphthanate compound in the crude unit residue stream, if not removed can result in the production of lower grade coke.
- To remove Metals which may poison the Reformer Catalyst.
- To avoid lengthy and expensive plant shut downs and achieve more then average Plant Life.
Free Water Knock out Features
The internal design allows the liquid to flow at an even rate through the vessel and not channel. Free Water Knock Outs are used where the oil and water exist separately are not in an emulsion, and easy to separate.
The degree of separation depends on:
- The available retention time.
- The density differential between the two fluids (larger differential means better separation)
- The operating temperature of the flowing fluids.
- The presence or absence of slugging flow.
- Interfacial area available for separation
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