Biocompatible material and uses thereof
US-9220806-B2 · Dec 29, 2015 · US
Ceramic particles with controlled pore and/or microsphere placement and/or size and method of making same
US10000690B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10000690-B2 |
| Application number | US-201615150097-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 9, 2016 |
| Priority date | Dec 31, 2009 |
| Publication date | Jun 19, 2018 |
| Grant date | Jun 19, 2018 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
The present invention relates to lightweight high strength microsphere containing ceramic particles having controlled microsphere placement and/or size and microsphere morphology, which produces an improved balance of specific gravity and crush strength such that they can be used in applications such as proppants to prop open subterranean formation fractions. Proppant formulations are further disclosed which use one or more microsphere containing ceramic particles of the present invention. Methods to prop open subterranean formation fractions are further disclosed. In addition, other uses for the microsphere containing ceramic particles of the present invention are further disclosed, as well as methods of making the microsphere containing ceramic particles.
First claim
Opening claim text (preview).
What is claimed is: 1. A method for producing proppants, wherein said method comprises filtering by membrane filtration one or more of the starting materials that form said proppant, and then forming a green body from said starting materials that have been filtered by membrane filtration and then sintering said green body to said proppant, wherein said proppant has a specific gravity of from about 1.8 to about 2.25, a microsphere and/or pore total volume of from about 1% to about 10%, a crush strength of from about 10 MPa to about 300 MPa, and a four point bending strength of about 50 MPa to about 400 MPa. 2. The method of claim 1 , wherein said membrane filtration is a cross flow membrane separation. 3. The method of claim 1 , wherein said membrane filtration is a dead end filtration.
Assignees
Inventors
Classifications
Silicon carbides · CPC title
millimeter or submillimeter sized, i.e. larger than 0,1 mm · CPC title
Pressure sintering · CPC title
Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance · CPC title
Total pressure below 1 atmosphere, e.g. vacuum · CPC title
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Frequently asked questions
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- What does patent US10000690B2 cover?
- The present invention relates to lightweight high strength microsphere containing ceramic particles having controlled microsphere placement and/or size and microsphere morphology, which produces an improved balance of specific gravity and crush strength such that they can be used in applications such as proppants to prop open subterranean formation fractions. Proppant formulations are further d…
- Who is the assignee on this patent?
- Halliburton Energy Services Inc
- What technology area does this patent fall under?
- Primary CPC classification C04B38/0054. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jun 19 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).