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US 10,369,724 B2Granted
Method of making spheroidal particles
AssigneeSchlumberger Technology Corporation
InventorsJose Alberto Ortega Andrade, Jiangshui Huang, Bernhard Rudolf Lungwitz
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Abstract
A method for forming spheroidal particles including inducing flow of a slurry of particles and a reactant through one or more orifices, detaching an amount of the slurry from the slurry flow following exit from the one or more orifices, the detached amount forming a slurry body, forming the slurry body into a spheroidal shape, contacting the spheroidally shaped slurry body with a coagulation solution to form a stabilized spheroidal particle and drying and/or sintering the stabilized spheroidal particle.
Claims15
A method, comprising:
- inducing flow of a slurry of treatment fluid comprised of particles and a reactant through one or more orifices of a container that received the slurry;
- applying vibration to the one or more orifices to detach an amount of the slurry from the slurry flow exiting the one or more orifices, the detached amount forming a slurry body having a spheroidal shape;
- contacting the spheroidally shaped slurry body with a coagulation solution to form a stabilized oblate or prolate spheroidal particle in a solid or a semi-solid form, wherein a slurry viscosity is adjusted to form the oblate or prolate spheroidal particle;
- and
- drying and/or sintering the stabilized oblate spheroidal particle to form an anti-flowback additive.
2 more elements
A method, comprising:
- inducing flow of a slurry comprised of particles and a reactant through an orifice of a container that received the slurry;
- applying vibration to the orifice to detach an amount of the slurry from the slurry flow exiting the orifice, the detached amount forming a slurry body having a spheroidal shape;
- contacting the spheroidal shaped slurry body with the coagulation solution to form an oblate or prolate spheroidal particle, wherein a slurry viscosity is adjusted to form the oblate or prolate spheroidal particle;
- adding a plurality of the oblate or prolate spheroidal particles to a carrier solvent, thereby forming a treatment fluid;
- and
- using the plurality of the oblate or prolate spheroidal particles as an anti-flowback additive.
3 more elements
Dependencies are inferred from the claim text.