Erosion reduction in subterranean wells
US-9476286-B2 · Oct 25, 2016 · US
Manufactured ported mandrel and method for making same
US9868258B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9868258-B2 |
| Application number | US-201414487709-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 16, 2014 |
| Priority date | Sep 16, 2014 |
| Publication date | Jan 16, 2018 |
| Grant date | Jan 16, 2018 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A ported mandrel additively manufactured with at least two different materials. A unitary ported mandrel includes a mandrel body of a base material; one or more ports including an erosion resistant material; and one or more return pathways. A method for making a unitary ported mandrel for a downhole fracturing operation.
First claim
Opening claim text (preview).
What is claimed is: 1. A unitary single piece ported mandrel comprising: a mandrel body of a base material, the mandrel body including one of a box thread and a pin thread: one or more ports including an erosion resistant material providing a fluid pathway from an inside diameter of the mandrel to an area around an outside diameter of the mandrel; and one or more return pathways arranged helically about the mandrel and enclosed within a wall thickness of the mandrel and configured to move fluid longitudinally of the mandrel to adjacent structure. 2. The unitary ported mandrel as claimed in claim 1 wherein the one or more ports is greater than one and the ports are arranged helically with respect to a longitudinal axis of the mandrel body. 3. The unitary ported mandrel as claimed in claim 1 wherein the one or more ports are coated with the erosion resistant material. 4. The unitary ported mandrel as claimed in claim 1 wherein the erosion resistant material is carbide. 5. The unitary ported mandrel as claimed in claim 1 wherein the base material is carbon steel. 6. A method for making a unitary ported mandrel as claimed in claim 1 , comprising: determining a layout of the ports, the return pathways and areas requiring erosion resistance; inputting the foregoing into a computer controller for an additive manufacturing device; and forming the ported mandrel. 7. A method for making a unitary ported mandrel as claimed in claim 1 , comprising: positioning a layer of material according to a programmed configuration of the unitary ported mandrel; positioning another layer of material at least partially in contact with the layer of material; repeating the positioning of a layer and positioning of another layer including positioning layers of erosion resistant material in selected locations until the unitary ported mandrel is complete.
Assignees
Inventors
Classifications
reinforcing fractures by propping · CPC title
Surface or curve machining, making three-dimensional [3D] objects, e.g. desktop manufacturing · CPC title
for controlling or regulating additive manufacturing processes · CPC title
- B29C67/0088Primary
Operations & Transport · mapped topic
- B29C64/386Primary
Data acquisition or data processing for additive manufacturing · CPC title
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9868258B2 cover?
- A ported mandrel additively manufactured with at least two different materials. A unitary ported mandrel includes a mandrel body of a base material; one or more ports including an erosion resistant material; and one or more return pathways. A method for making a unitary ported mandrel for a downhole fracturing operation.
- Who is the assignee on this patent?
- Silva Zachary S, Baker Hughes A Ge Co Llc
- What technology area does this patent fall under?
- Primary CPC classification B29C67/0088. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Jan 16 2018 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 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).