Saudi Arabian Oil Company

Saleh A Haidary

Vikrant Bhavanishankar Wagle

Abdullah Saleh Al-Yami

Hussain Albahrani

Ali Safran

Nasser AlHareth

Abdulla H Awadh

Abdulaziz A Ba Hamdan

Ayman Raja Al-Nakhli

Harry Daniel Oduro

Wajdi Mohammed Buhaezah

Rami Adel Sindi

Barite (barium sulfate) scale may be problematic in subterranean formations, wellbores, pipelines, and other locations and may be difficult to remove in many instances. Aqueous fluid compositions effective for removing barite scale may comprise a concentrated mineral acid, a first salt comprising an iodide anion, and a second salt comprising an anion that forms an aqueous-soluble barium salt. One suitable aqueous fluid composition may comprise concentrated hydroiodic acid, an alkali metal iodide, and an alkali metal hypophosphite salt. The aqueous fluid compositions may be used in combination with a second treatment phase comprising a fluid composition comprising at least one acid gas capturing agent. The at least one acid gas capturing agent may comprise a first component reactive toward hydrogen sulfide and an optional second component reactive toward carbon dioxide.

Aqueous fluid compositions and barite scale removal therewith

A system and method for treating lost circulation, including providing a treatment fluid including a polymer and a nitrogen-generating compound through a wellbore into a lost circulation zone in a subterranean formation, generating nitrogen gas in the lost circulation zone by a reaction of the nitrogen-generating compound, generating foam from the nitrogen gas and the treatment fluid in the lost circulation zone to give foamed polymer in the lost circulation zone, and plugging the lost circulation zone with the foamed polymer.

In-situ foamed gel for lost circulation

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

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.

Anti-bit balling drilling fluids, and methods of making and use thereof

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Dhahran, Saudi Arabia

Saleh A Haidary