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Erlenmeyer Flasks

Eugene Dakin Ph.D., P.Chem

Professional Chemist

Chemical Cylinders

Oilfield Chemistry


 

Recognizing that all visitors to this website are not chemical professionals, the section on Oilfield Basics help beginners to gain an understanding of the industry.  The Oilfield Basics provides an explanation designed for a non-technical audience.

 

A little more in-depth

 

Oilfield Chemistry is a fascinating area that encompasses Heavy oil, Light Oil, Natural Gas, and Water production-treatment-and sales.  Eugene is a member of the North American Corrosion Engineers (NACE) and the Society of Petroleum Engineers (SPE), and informative troubleshooting comments can be viewed in the Technical Interest Groups (TIG's) at http://www.spe.org.

 

Once the hole has been drilled and production starts, production chemicals are used to keep the well flowing.  This can be with the aid of: asphaltene products, paraffin products, anti-scale chemicals, foams, kinetic and mechanical hydrate products, and more. 

 

Corrosion can be a great concern and is controlled by: Anti-corrosion chemicals, biocides, water treatment products, with properly designed pigging programs.  Complete corrosion programs are assembled to limit/prevent corrosion as required by the Energy and Utilities Board (EUB).

 

Separation of natural gas, oil, and water is accomplished by heat and de-emulsifying compounds.  When separating in a treater or separator, usually tests are performed on-site and specific blends are created for each field. 

 

Separation of water/moisture/acid gasses from natural gas is accomplished by dehydration, refrigeration, and sweetening units.

 

Co-mingling of produced water can cause scaling, which is controlled/eliminated by the use of anti-scaling agents.

 

Future areas that will be added to this section are: Natural Gas Dehydration, Natural Gas Sweetening, Downhole Production, Separation, Stimulation, and more.

 

Advanced Chemical Product Areas

 

Paraffin Inhibitors - Prevent further buildup of paraffin molecules on downhole equipment.

 

Paraffin Dispersants - Promotes the breakup and dissolving of paraffins from equipment.

 

Corrosion Inhibitors - Limits or prevents corrosion from occurring. Usually lengthens the lifetime of equipment by a minimum factor of 10.

 

Scale Inhibitors - Prevents further buildup of scale.  This can be present in many forms.  Analysis is required.

 

Gas Hydrate Control - Two various areas of hydrate control exist, 1) mechanical, and 2) kinetic.

 

Scale Removers - Removes scale that has adhered to equipment surfaces.

 

Asphaltene Inhibitors - Prevents the buildup, and lowers the amount of asphaltene buildup.

 

Asphaltene Dispersants - Removes asphaltene buildup quickly, and effectively.

 

Demulsifiers - Effective separation and remove of oil from water, and water from oil.

 

EOR - Chemically induced Enhanced Oil Recovery of petroleum from reservoirs.

 

Reservoir Stimulation - Injection of chemicals to aid in the increased recovery of oil near the well bore.

 

Conventional Sandstone Acidizing - Opening plugged pore spaces and removing scale build-up.

 

 

 

 

Oilfield : A region rich in petroleum deposits.  Usually one that has been brought into production.