PRODUCTION
Separators
Horizontal and vertical designs to separate gas from oil (two-phase) and oil/gas/water (three phase).
Cyclone separators separate liquids and/or solids in a single stage at higher velocities than normal separation equipment. Inlet cyclones work on the principle of enhanced gravity separation by accelerating the incoming stream, then forcing along the vessel wall where solids and/or liquids accumulate and break away.
Stage separation for both high pressure, low pressure, bulk and test measurement.
C5 uses a proprietary inlet device for the effective distribution and momentum dissipation of an incoming multi-phase feed increases separation while eliminating oil carryover.
Perforated & Slotted Baffles designed to evenly disperse fluid, reduce velocity and increase residence time leading to higher performance and decreased foam.
Coalescing Plate Packs / Mesh Pads enhance the settling process considerably by passing the dispersion through a coalescer pack. C5 internals won’t plug by dirty streams containing paraffins and solids.
Vane-type Mist Eliminators force wet gas into tight curves to decrease momentum and increase the coalescence of water droplets. Vanes handle higher liquid loads, allow less typical pressure drop and are less susceptible to fouling than wire mesh pads.
Sand Jet Systems for the effective removal of sediment and sand that can damage valves and plug equipment.
Electrostatic Oil Dehydration
C5PG’s Electrostatic Dehydrators and Treaters effectively provide gas separation, freewater removal and the coalescence of entrained water particles to meet pipeline or custody transfer specifications (<0.5% BS&W)
Units can be designed as heated electrostatic dehydrators (furnished with “U” type firetubes) or stand-alone electrostatic coalescers.
The unit uses high voltage current to create an electrostatic field to accelerate the coalescence of water droplets. Force attraction happens between water droplets, who collide, become larger and eventually gravity settle (Stoke’s Law). A high gradient field between grid plates is for coalescing small micron size water droplets and a lower gradient field from the bottom of the grid plates to the water phase is for coalescing larger micron size water droplets.
Our electrostatic treaters are designed with oil temperature, oil pressure (above bubble point), vapor phase disengagement and turndown or capacity limits to effectively treat crude oil.
Chemical, heat, time and electricity combined to effectively and expertly solve your oil treating worries.
Heater Treaters/Heated Separators
Most applications of crude oil dehydration require two prerequisites: heat and time. C5’s crude oil heater treaters combine both in a single vessel to provide a cost efficient and effective alternative to multiple treating vessels.
A heater treater is essentially a three-phase separator outfitted with an internal heat source to provide warming to the incoming process stream. Settling rate is proportional to the inverse of viscosity. If you can cut the viscosity in half, terminal velocity doubles. Heat effectively reduces oil viscosities and creates an agitated environment where water droplets more easily settle.
Our proprietary equipment has custom internals, can be designed for any flow rate, heat requirement and/or weather conditions (fully enclosed).
Additional accessory items that can be included with our treater packages include, our proprietary inlet diffuser, coalescing media, foam and distribution baffling, sand and sludge removal systems.
C5 personnel has hundreds of field operating heater treaters throughout the world.
Crude Stabilization
C5 stabilizers are used to strip hydrocarbons of light ends via re-boiling of the product. Typically, the liquid stripping process is designed to heat the product to a temperature that vapors are generated, rising through a stripping tower, so that the process liquid becomes stabilized to a prescribed vapor pressure for storage, transport or quality assurance purposes. Intermediate hydrocarbons also stay in the liquid phase resulting in increased liquid volume.
The stabilizer will be operated at as low a pressure as possible to reduce the overall heat duty and temperature. Also, the product is easier to stabilize at lower pressures/temperatures.
Often there is a need to meet a prescribed sales contract requirement or the prevention of vaporization in an atmospheric storage tank. Improperly treated crude oils stabilize in storage tanks (weathering, a huge wellpad problem!), resulting in increased product losses and environmental concerns.
The capital expenditure is increased with the installation of a crude oil/condensate stabilizer, although, for the reduction in operating expenditures, increased volumes and alleviation of environmental issues more than offsets the initial capital outlay. Dead oil is good oil.
Gas Dehydration / Enclosed Combustors / Flares
Glycol Gas Dehydration is a process to remove water vapor from natural gas through an absorption process, with a liquid desiccant, typically triethylene glycol (TEG). When natural gas is compressed or cooled, water vapor can convert to a liquid or solid phase. Liquid water can accelerate corrosion and reduce gas transmission efficiency. Water, in the solid state, forms icy hydrates, which can plug valves, fittings and even gas lines. To prevent these difficulties, some of the water vapor must be removed from the gas stream before it is transported in transmission lines.
C5 offers glycol contactors with high efficiency structured packing and/or bubble cap trays, with large dewpoint depression capabilities.
Standard gas outlet specifications call for a maximum content of 7 lb (H20) per MMscf (gas), with typical pipeline specifications being 4 – 7 lb/MMscf. With unique experience dehydrating even hard to treat scenarios (high gas temperatures and low pressures), C5 stands alone in natural gas dehydration.
C5 also has a full line of emission abatement equipment, including enclosed flares, thermal oxidizers and other BTEX elimination units.
