Oil Production Chemicals

Service offered :

  1. Handling and solving :
    1. Emulsion ProblemCorrosion problem
    2. Waste water problem
    3. Bacteria problem
    4. Scale/fouling problem
    5. Sludge problem
    6. Oxygen content problem
    7. High pour point problem
    8. Salt content problem
    9. H2S content problem
  2. Handling, setting and maintain chemical consumption
  3. Chemical dosage optimization
  4. Chemical performance monitoring


Emulsions are defined as one phase dispersed in another, emulsions are dynamic and they change with changing conditions. The key is always to try to force the emulsion into instability, so that it separates quickly. In oil production there are two types of emulsions.

  • Water in oil emulsions (WIO)
  • Oil in water emulsions (OIW), or reverse emulsions

Oil will easily emulsify with water, when the following conditions are present:

  • Energy – normally pressure drop over the choke or valve and mixing in a high shear pump
  • Emulsifier – normally a chemical component in the oil or other substances such as wax, solids etc.

Separators are designed for separation of oil, gas, and water, but if an emulsion is formed, then the separators will have problems to separate the phases. To help the separation process, we can use the following physical or chemical tools:

Electrical field
Increased flow rate in the separator
Chemicals (emulsion breaker)
Chemicals (flocculants / deoilers)



Corrosion Control

There are several methods used to apply a corrosion inhibitor “downhole” to control either sweet or sour corrosion. These methods fall into two categories depending on the mode of application, either a batch or continuous treatments as follows:

  1. Batch addition methods
    1. Regular tubing “fill & soak”
    2. Corrosion inhibitor squeeze
    3. Periodic “Brush” application on well tubing
    4. Encapsulated for slow release from the “rathole”
    5. Weighted
  2. Continuous Methods
    1. Injection through the annulus either as a liquid
    2. solution or with the lift gas via a mandril valve
    3. Injection via a “ macaroni” string
    4. Injection with the “power fluid” in a hydraulic lift pump

Batch treatments will lay down a relatively thick protective film on the metal surface which is slowly eroded by the shear and flow in the system until the next treatment cycle is due. Continuous treatments lay down and then continuously maintain a thin but complete film of inhibitor molecules which covers and protects the metal surface.


Natural gas is described as a “clean” fuel and production of natural gas normally gives few chemical problems. Gas is produced from gas fields, or it is associated with oil production. The gas will normally be processed in the following way

  • It is separated from liquids at the separator
  • NGL and water is removed using the combined effects of compression and cooling
  • Residual water is removed in a glycol contractor tower. Triethylene glycol is normally used, due to its good adsorption and regeneration qualities

Water connected with gas production may contain salt from the reservoir or it may be condensed water from the cooling and expansion processes


One definition of sour conditions is when the partial pressure of H2S is over 0.3 kPa/0.05 psi or more typically 500 ppm H2S @ 100 psi. On the other hand most pipelines in the North Sea have a limit of 2-3 ppm H2S in the gas. H2S is normally removed by adsorption in amine process, or by the use of non regenerated H2S scavengers. Examples are glyoxal and triazines.

Capability :

  • Bottle test on site
    • Demulsifier / Desalter
    • Water Clarifier
    • Pour Point Depressant
  • Screening product
  • R & D
  • Trouble shooting and problem solving