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US 10,519,357 B2Granted
Flaky date fruit cap for moderate to severe loss control
AssigneeSaudi Arabian Oil Company
InventorMd Amanullah
Life of this patent
Estimating the term…
Abstract
A lost circulation material (LCM) having date fruit caps is provided. The date fruit cap LCM includes date fruit caps from a date tree. The date fruit caps have multiple flakes (for example, three flakes) attached at one end to an end cap and free at the other end. The date fruit caps may be obtained from the waste product of date tree and date fruit processing. The date fruit cap LCM may be added to a drilling fluid (for example, a drilling mud) to mitigate or prevent such lost circulation in a well. Methods of lost circulation control with the date fruit cap LCM are also provided.
Claims2
An altered drilling fluid, comprising:
- a drilling fluid, wherein the drilling fluid comprises a bentonite mud comprising water, bentonite, caustic soda, and soda ash;
- and
- a lost circulation material (LCM), wherein the LCM consists of a plurality of whole date fruit caps, wherein the whole date fruit caps comprise a concentration of at least 20 pounds-per-barrel, wherein each of the plurality of date fruit caps has a diameter in the range of 7 millimeters (mm) to 8 mm and each of the plurality of date fruit caps comprises three flakes, wherein each of the plurality of date fruit caps has a surface area in the range of 38 mm2 to 50 mm2 when the flakes are spread.
Dependencies are inferred from the claim text.