Flaky Date Fruit Qulansuwa (CAP) for Moderate to Severe Loss Control
AssigneeSaudi Arabian Oil Company
InventorMd Amanullah
Life of this patent
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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.
Claims31
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, wherein the altered drilling fluid comprises a drilling fluid and a lost circulation material (LCM), wherein the LCM comprises a plurality of date fruit caps.
An altered drilling fluid, comprising:
- a drilling fluid;
- and
- a lost circulation material (LCM), wherein the LCM comprises a plurality of date fruit caps.
A method of forming an altered drilling fluid, comprising:
- separating a plurality of date fruit caps from date fruits;
- isolating each of plurality of the date fruit caps from spikelets coupled to each date fruit cap to form a lost circulation material (LCM) comprising the plurality of date fruit caps;
- and
- adding the LCM to a drilling fluid to create an altered drilling fluid.
A lost circulation material (LCM) composition, the composition comprising:
- a plurality of date fruit caps produced from date fruits, wherein each of plurality of the date fruit caps are isolated from spikelets coupled to each date fruit cap and a respective date fruit to form the LCM composition.
Dependencies are inferred from the claim text.