Environment Friendly Base Fluid to Replace the Toxic Mineral Oil-Based Base Fluids
AssigneeSaudi Arabian Oil Company
InventorMd. Amanullah
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Abstract
Processes for producing alkyl esters useful as base fluids in oil-based mud compositions. The alkyl esters are produced from raw material waste oil that include vegetable oil. The raw material waste oil can be obtained from the food industry, such as from food chains. The raw material waste oil is purified by removing impurities from it. The raw material waste oil is then esterified with an alcohol in the presence of a catalyst. The resulting alkyl ester products are then separated from triglycerides. The alkyl ester products are then washed and dried.
Claims28
A process for producing alkyl esters useful as a base fluid in oil-based mud compositions, the process comprising the steps of:
- a. esterifying a raw material waste oil comprising fatty acids with a short chain alcohol in the presence of a catalyst to produce alkyl ester products and triglycerides;
- b. separating alkyl ester products and triglycerides;
- c. washing the alkyl ester products;
- and
- d. heating the alkyl ester products to remove any residual water or the short chain alcohol, the alkyl ester products being useful as the base fluid in oil-based mud compositions.
A process for producing alkyl esters useful as a base fluid in oil-based mud compositions, the process comprising the steps of:
- a. removing impurities from a raw material waste oil comprising fatty acids;
- b. esterifying the raw material waste oil with a short chain alcohol in the presence of a catalyst to produce alkyl ester products and triglycerides;
- c. separating alkyl ester products and triglycerides;
- d. washing the alkyl ester products;
- and
- e. heating the alkyl ester products to remove any residual water or the short chain alcohol, the alkyl ester products being useful as the base fluid in oil-based mud compositions.
A process for producing alkyl esters useful as a base fluid in oil-based mud compositions, the process comprising the steps of:
- a. removing impurities from a raw material waste oil comprising fatty acids, the raw material waste oil comprising waste vegetable oil;
- b. esterifying the raw material waste oil with methanol in the presence of sodium hydroxide to produce alkyl ester products and triglycerides;
- c. separating alkyl ester products and triglycerides;
- d. washing the alkyl ester products;
- and
- e. heating the alkyl ester products to remove any residual water or the short chain alcohol, the alkyl ester products being useful as the base fluid in oil-based mud compositions.
Dependencies are inferred from the claim text.