Saudi Arabian Oil Company

Nasser AlHareth

Vikrant Bhavanishankar Wagle

Abdullah Saleh Al-Yami

Hussain Albahrani

Ali Safran

Abdulla H Awadh

Saleh A Haidary

Abdulaziz A Ba Hamdan

Zainab Alsaihati

Abdulaziz Ibrahim Alhelal

Abdullah Al-Awadh

Ali Mohammed Alsafran

Antonio A Santagati

Mohammad Al-Alqam

A wellbore servicing fluid comprises an aqueous base fluid, one or more alkali metal or alkali earth metal salts, at least one visocisifier, and a filtration control package. The filtration control package may comprise a carboxylic acid and an ethoxylated alcohol compound. Alternatively, the filtration control package may comprise a polyethylene glycol. The carboxylic acid may have from 8 to 20 carbon atoms. The ethoxylated alcohol compound may have a general formula R&#x2014;(OCHCH)&#x2014;OH, where R is a hydrocarbon having from 10 to 16 atoms and x is an integer from 6 to 9. The ethoxylated alcohol compound may have a hydrophilic-lipophilic balance of from 8.0 to 16.0. The polyethylene glycol may have a mass average molar mass (M) of less than or equal to 1500 daltons.

Enhanced filtration control packages, wellbore servicing fluids utilizing the same, and methods of maintaining the structure of a wellbore

Anti-bit balling drilling fluids and methods of making and using drilling fluids are provided. The anti-bit balling drilling fluid contains water, a clay-based component, and at least one of a surfactant having the formula: R&#x2014;(OCH)&#x2014;OH, where R is a hydrocarbyl group having from 10 to 20 carbon atoms and x is an integer from 1 and 10, or a polyethylene glycol having the formula: H&#x2014;(O&#x2014;CH&#x2014;CH)&#x2014;OH, where n is an integer from 1 to 50. Methods of making and using these drilling fluids are also provided.

Development of anti-bit balling fluids

Cement slurries, cured cements, and methods of making cured cement and methods of using cement slurries are provided. The cement slurries have, among other attributes, increased yield point, reduced density, improved mechanical properties, increased resistance to HS, and may be used, for instance, in the oil and gas drilling industry. The cement slurry comprises cement precursor material, Saudi Arabian volcanic ash, and an aqueous solution. The Saudi Arabian volcanic ash comprises SO, CaO, SiO, AlO, FeO, MgO, and KO and the cement slurry is free of any other SiOadditive.

Cement slurries, cured cement and methods of making and use thereof

According to at least one embodiment of the present description, a cement slurry includes 50% to 90% BWOC of a cement precursor material based on a total weight of the cement slurry; and from 10% to 50% BWOC of a flexible additive based on the total weight of the cement slurry. The flexible additive includes hydrophilic polyolefin fibers or 2,6-di-tert-butyl-p-cresol.

Flexible durable cement

A drilling fluid composition which includes a base fluid, one or more additives, and a viscosifier package. The base fluid is an invert emulsion comprising oil and water. Further, the one or more additives is chosen from an emulsifier, a weighting material, a fluid-loss control additive, or an alkaline compound. The viscosifier package includes a fatty acid having 6 or more carbon atoms and an aliphatic polyester. The drilling fluid composition has a yield point of from 30 lb/100 ftto 100 lb/100 ftand a low shear yield point of from 10 lb/100 ftto 40 lb/100 ft. The associated method of drilling a subterranean well including operating a drill in a wellbore in the presence of the drilling fluid composition is also provided.

Invert emulsion based drilling fluid and methods of using same

A cement slurry includes from 1% to 90% BWOC of a cement precursor material based on the total weight of the cement slurry; and from 1% to 40% BWOC of a swelling additive based on the total weight of the cement slurry. The swelling additive includes at least one micronized rubber, at least one distillate, and at least one solvent-refined heavy paraffinic.

Self-healing durable cement

According to at least one embodiment of the present description, a cement slurry includes 1% to 90% BWOC of a cement precursor material based on the total weight of the cement slurry; and from 1% to 40% BWOC of a swelling additive based on the total weight of the cement slurry. The swelling additive comprises at least one micronized rubber, at least one distillate, and at least one solvent-refined heavy paraffinic.

Anti-bit balling drilling fluids and methods of making and using drilling fluids are provided. The anti-bit balling drilling fluid contains water, a clay-based component, and a polyethylene glycol having the formula: H&#x2014;(O&#x2014;CH&#x2014;CH)&#x2014;OH, where n is an integer from 1 to 50.

Growing community of inventors

Ras Tanura, Saudi Arabia

Nasser AlHareth