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US 11,441,388 B2Granted
Methods and systems for a flow activated annulus choke device
AssigneeSharp-Rock Technologies, Inc.
InventorHong Wang
Life of this patent
Estimating the term…
Abstract
Systems and methods for a flow activated choke device that is activated by the choke device directly interacting with the flow of fluid in an upstream direction. More specifically, a choke device formed of chain like materials that is configured to be extended in a first mode and compacted in a second mode, wherein the choke device moves from the first mode to the second mode responsive to an upward fluid flow rate being greater than a flow rate threshold.
Claims14
A system with a choke device, the system comprising:
- a wellbore;
- a drill string positioned within the wellbore;
- an annulus between the wellbore and the drill string;
- a stopper positioned between the drill string and the wellbore, the stopper being configured to reduce a space of the annulus;
- a blocking element with a proximal end and a distal end, the proximal end of the blocking element being coupled with a lower surface of the stopper, the distal end being configured to move towards the stopper based on a fluid flow rate in a first direction within the annulus being greater than a fluid flow rate threshold and the fluid directly interacting with the blocking element to move the distal end of the blocking element, wherein the first direction is towards a surface of the wellbore, wherein the blocking element includes a plurality of links, wherein the plurality of links are elongated when the fluid flow rate is less than the fluid flow rate threshold, and the plurality of links are accumulated at the stopper when the fluid flow rate is greater than the fluid flow rate threshold, wherein the blocking element of accumulated plurality of links is porous.
2 more elements
A system with a choke device, the system comprising:
- a wellbore;
- a drill string positioned within the wellbore;
- an annulus between the wellbore and the drill string;
- a stopper positioned between the drill string and the wellbore, the stopper being configured to reduce a space of the annulus;
- a blocking element with a proximal end and a distal end, the proximal end of the blocking element being coupled with a lower surface of the stopper, the distal end being configured to move towards the stopper based on a fluid flow rate in a first direction within the annulus being greater than a fluid flow rate threshold and the fluid directly interacting with the blocking element to move the distal end of the blocking element, wherein the first direction is towards a surface of the wellbore, wherein the blocking element includes a plurality of links, wherein the distal end the plurality of links configured to move along a linear path.
2 more elements
A method associated with a choke device, the method comprising:
- positioning a drill string within a wellbore, wherein an annulus is formed between the wellbore and the drill string;
- positioning a stopper between the drill string and the wellbore, the stopper reducing a space of the annulus;
- coupling a proximal end of a blocking element with a lower surface of the stopper;
- increasing a fluid flow rate within the annulus to be above a fluid flow rate, wherein the fluid flow rate is in a first direction, the first direction is towards a surface of the wellbore;
- moving a distal end of the blocking element towards the stopper based on the fluid flow rate in the first direction being greater than a fluid flow rate threshold, wherein the fluid directly interacts with the blocking element to move the distal end of the blocking element, wherein the blocking element includes a plurality of links;
- elongating the plurality of links when the fluid flow rate is less than the fluid flow rate threshold;
- and
- accumulating the plurality of links at the stopper when the fluid flow rate is greater than the fluid flow rate threshold, wherein the blocking element of accumulated plurality of links is porous.
5 more elements
Dependencies are inferred from the claim text.