Completion fluid for injection into wellbore
AssigneeKing Fahd University of Petroleum and Minerals
InventorsNaji Ali Mohammed Al-Radhi, Mobeen Murtaza, Muhammad Shahzad Kamal, Umer Zahid, Syed Muhammad Shakil Hussain
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Abstract
A method of completing a wellbore in a hydrocarbon-containing subterranean formation includes injecting a completion fluid into the wellbore to form a hydrostatic gradient at a hydrocarbon-producing depth in the wellbore. The completion fluid is an aqueous solution including 10 to 20 w/v % of a dicationic surfactant of Formula (I) having an alkyl linker and a lipophilic tail. The completion fluid reduces a torque of the wellbore by at least 25% at a temperature of at least 150° F.
Claims20
A method of completing a wellbore in a hydrocarbon-containing subterranean formation, comprising:
- injecting a completion fluid into the wellbore to form a hydrostatic gradient at a hydrocarbon-producing depth in the wellbore,
- wherein the completion fluid is an aqueous solution comprising 10 to 20 w/v % of a dicationic surfactant of Formula (I) having an alkyl linker and a lipophilic tail
- where:
- c is from 1 to 20 and represents the alkyl linker,
- X represents an anionic counterion,
- a is from 1 to 20 and represents the lipophilic tail, and
- b is from 1 to 20, and
- wherein the completion fluid reduces a torque of the wellbore by at least 25% at a temperature of 150 to 300° F. at a surfactant loading of 10 wt./vol. % based on the total volume of the completion fluid.
Dependencies are inferred from the claim text.