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US 2009/0260814 A1Published application
System and Method to Facilitate Treatement and Sand Control in a Wellbore
OwnerBradley P. Maloneinventor
Life of this patent
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Abstract
A technique provides a multi-stage well treatment system having a plurality of packers and a plurality of flow valves. The multi-stage well treatment system can be moved downhole in a wellbore and actuated to isolate a plurality of sections along the wellbore for treatment. The system and methodology enable treatment, e.g. fracturing, of select sections via the flow valves, while also enabling use of the flow valves to establish a permeable, stabilized pack surrounding each flow valve.
Claims22
A well system, comprising:
- a tubular structure deployed in a wellbore;
- a plurality of packers mounted on the tubular structure and positioned for actuation in an annulus surrounding the tubular structure to divide the wellbore into isolated sections;
- a plurality of flow valves arranged on the tubular structure to provide at least one flow valve in each isolated section to control flow between an interior of the tubular structure and the annulus, wherein the flow valves comprise a ball seat;
- and
- a stabilized filter pack disposed in the annulus at each isolated section, the stabilized filter pack being formed of a resin coated sand.
2 more elements
A method to improve production from a well, comprising:
- forming a tubular structure with a plurality of packers and a plurality of flow valves, the plurality of packers creating sections for isolation along the tubular structure, the plurality of flow valves being placed such that at least one flow valve is in each section between adjacent packers, and wherein the flow valves comprise a ball seat;
- deploying the tubular structure in a wellbore;
- isolating the sections along an annulus surrounding the tubular structure;
- performing a fracturing procedure at each section by delivering a fracturing fluid down through the tubular structure and out through a flow valve at each section;
- and
- using the plurality of flow valves to deliver a proppant to each section to form a permeable, stabilized pack that performs sand control.
3 more elements
A well system, comprising:
- a well string having a multi-stage fracturing system deployed in a wellbore to fracture a plurality of sections along the wellbore, the multi-stage fracturing system having packers that can be actuated to isolate the plurality of sections and flow valves disposed between the packers, and wherein the flow valves comprise a ball seat;
- and
- a permeable, stabilized pack disposed in each of the plurality of sections via the flow valves.
A method, comprising:
- constructing a multi-stage fracturing system having packers and flow valves disposed between the packers to create a plurality of sections, and wherein the flow valves comprise a ball seat;
- deploying the multi-stage fracturing system in a wellbore;
- actuating the packers to isolate the plurality of sections;
- and
- using the flow valves to deliver a fracturing fluid to each section and to deliver a proppant to each section for forming a permeable, stabilized pack in an annulus at each section.
2 more elements
Dependencies are inferred from the claim text.