Fibrous lost circulation material (LCM)
AssigneeSaudi Arabian Oil Company
InventorsMd Amanullah, Timothy E. Moellendick, Raed Alouhali
Life of this patent
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Abstract
A human hair lost circulation material (LCM) is provided. The human hair LCM includes human hairs obtained from sources of human hair waste such as barber shops, saloons, beauty parlors, and religious sites. The human hair LCM may include human hair having a diameter in the range of about 50 microns to about 150 microns and human hair having a length in the range of 2 millimeters (mm) to about 4 centimeters (cm). Methods of lost circulation control using and formation of a human hair LCM are also provided.
Claims6
A method to control lost circulation in a lost circulation zone in a wellbore, comprising:
- introducing an altered drilling fluid into the wellbore such that the altered drilling fluid contacts the lost circulation zone and reduces a rate of lost circulation into the lost circulation zone, where the altered drilling fluid comprises a drilling fluid and a lost circulation material (LCM), wherein the LCM consists of a plurality of human hairs.
Dependencies are inferred from the claim text.