Solid-core filament-wound composite mandrel
US-10494893-B2 · Dec 3, 2019 · US
Wound composite core for molded components
US10907440B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10907440-B2 |
| Application number | US-201715496920-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 25, 2017 |
| Priority date | Apr 25, 2016 |
| Publication date | Feb 2, 2021 |
| Grant date | Feb 2, 2021 |
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- Title
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Abstract
Official abstract text for this publication.
A component on a composite bridge plug used for plugging a wellbore includes a first member including a wound composite material, and a second member including a molded fiber phenolic composite material. The wound composite material of the first member makes up more than half of a volume of the component. The first member is a convolute-wound core having a cylindrical shape. The second member forms an outer shell that is molded over an outer surface of the first member. The component is a cone of the composite bridge plug.
First claim
Opening claim text (preview).
What is claimed: 1. A component on a composite bridge plug used for plugging a wellbore, the component comprising: a first member comprising a wound composite material; and a second member comprising a molded fiber phenolic composite material, wherein the wound composite material of the first member makes up more than half of a volume of the component, wherein the first member is a convolute-wound core having a cylindrical shape, wherein the second member forms an outer shell that is molded over an outer surface of the first member, and wherein the component is a cone of the composite bridge plug. 2. The component of claim 1 , wherein a final shape of the second member molded over the outer surface of the first member comprises a tapered outside body section that decreases in thickness from a first end towards a second end. 3. A method of forming a component of a composite bridge plug comprising: forming a first composite member by winding a composite material about a winding mandrel in a convolute-wound process to form a convolute-wound core having a cylindrical shape; and forming a second composite member about the convolute-wound core, the second composite member comprising a molded fiber phenolic composite material, wherein forming the second composite member about the convolute-wound core comprises: molding the second composite material onto the first composite member; and fully encapsulating an outer surface of the first composite member by the second composite member, and wherein the convolute-wound core makes up more than half of a volume of the component, wherein the component is a cone of the composite bridge plug. 4. The method of claim 3 , wherein the molding step comprises: positioning the first composite member within a two-piece mold comprising an upper mold and a lower mold; and compressing the upper mold and the lower mold towards each other. 5. The method of claim 3 , wherein a final shape of the second composite member molded onto the convolute wound core of the first composite member comprises a tapered outside body section that decreases in thickness from a first end towards a second end.
Assignees
Inventors
Classifications
Sealing devices, e.g. packaging for pistons or pipe joints · CPC title
incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles {(B29C43/206 takes precedence)} · CPC title
permanent; drillable · CPC title
completely · CPC title
- E21B33/134Primary
Bridging plugs · CPC title
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Frequently asked questions
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- What does patent US10907440B2 cover?
- A component on a composite bridge plug used for plugging a wellbore includes a first member including a wound composite material, and a second member including a molded fiber phenolic composite material. The wound composite material of the first member makes up more than half of a volume of the component. The first member is a convolute-wound core having a cylindrical shape. The second member f…
- Who is the assignee on this patent?
- Schlumberger Technology Corp
- What technology area does this patent fall under?
- Primary CPC classification E21B33/134. Mapped technology areas include Fixed Constructions.
- When was this patent published?
- Publication date Tue Feb 02 2021 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).