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US 12,624,274 B2Granted
Lost circulation compositions comprising red mud
AssigneeSaudi Arabian Oil Company
InventorsKhawlah Alanqari, Abdullah Al-Yami, Mohammad Alharthi
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Abstract
The invention is directed to lost circulation material (LCM) compositions capable of forming geopolymers, said LCM compositions comprising red mud, a silica source, a developed alkaline activator (DAA), and an aqueous source, and methods and systems related thereto for treating a lost circulation zone within a subterranean formation using the LCM compositions which form said geopolymers therein so as to at least partially prevent lost circulation.
Claims17
A method comprising:
- providing a lost circulation material (LCM) composition comprising:
- a red mud;
- a silica source comprising silicon dioxide (SiO2);
- a developed alkaline activator (DAA), wherein the DAA comprises a sodium silicate ((SiO2)n:Na2O) and sodium hydroxide (NaOH);
- and
- an aqueous source;
- wherein the red mud comprises a sodium content in an amount in the range of about 20 wt. % to about 40 wt. % based on total weight of the red mud;
- placing the LCM composition in a lost circulation zone in a subterranean formation;
- and
- allowing the LCM composition to set to form a geopolymer in the lost circulation zone so as to at least partially prevent lost circulation.
7 more elements
A system comprising:
- a tubular extending into a wellbore in a subterranean formation;
- and
- a pump fluidly coupled to the tubular,
- wherein the pump is configured to convey a lost circulation material (LCM) composition into the wellbore via the tubular at a pressure sufficient for the LCM composition to penetrate a lost circulation zone of the subterranean formation, the LCM composition comprising:
- a red mud;
- a silica source comprising silicon dioxide (SiO2);
- a developed alkaline activator (DAA), wherein the DAA comprises a sodium silicate ((SiO2)n:Na2O) and sodium hydroxide (NaOH);
- and
- an aqueous source;
- and
- wherein the red mud comprises a sodium content in an amount in the range of about 20 wt. % to about 40 wt. % based on total weight of the red mud.
8 more elements
Dependencies are inferred from the claim text.