Methods of making and using cement coated substrate
US-9896903-B2 · Feb 20, 2018 · US
Loss circulation compositions (LCM) having Portland cement clinker
US10450497B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10450497-B2 |
| Application number | US-201916440585-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 13, 2019 |
| Priority date | Jul 20, 2017 |
| Publication date | Oct 22, 2019 |
| Grant date | Oct 22, 2019 |
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- Title
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Abstract
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Portland cement clinker LCMs that include Portland cement clinker to mitigate or prevent lost circulation in a well are provided. A Portland cement clinker LCM may include Portland cement clinker, Portland cement, a carrier fluid, and an inorganic consolidation activator. Another Portland cement clinker LCM may include Portland cement clinker and a crosslinked fluid, such as a polyuronide crosslinked via calcium ions or a polysaccharide crosslinked via divinyl sulfone. Yet another Portland cement clinker LCM may include Portland cement clinker and polymer fibers or particulate glass. Methods of lost circulation control using a Portland cement clinker LCM are also provided.
First claim
Opening claim text (preview).
What is claimed is: 1. A lost circulation material (LCM) composition, comprising: Portland cement clinker, wherein the Portland cement clinker consists of non-hydraulic, non-cementiceous unground Portland cement clinker particles; cement, wherein the cement comprises API Class G cement; and a carrier fluid. 2. The LCM composition of claim 1 , wherein the Portland cement clinker comprises ASTM International Type I cement clinker, ASTM International Type V cement clinker, API Class A cement clinker, or API Class G cement clinker. 3. The LCM composition of claim 1 , wherein the weight ratio of carrier fluid to cement clinker is 1:1. 4. The LCM composition of claim 1 , wherein the weight ratio of cement clinker to cement is in the range of 60:40 to 90:10.
Assignees
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Classifications
Cross-linked polymers · CPC title
Fiber-containing well treatment fluids · CPC title
- C04B28/04Primary
Portland cements · CPC title
Aluminous cements (monolithic refractories or refractory mortars C04B35/66) · CPC title
Polysaccharides or derivatives thereof · CPC title
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- What does patent US10450497B2 cover?
- Portland cement clinker LCMs that include Portland cement clinker to mitigate or prevent lost circulation in a well are provided. A Portland cement clinker LCM may include Portland cement clinker, Portland cement, a carrier fluid, and an inorganic consolidation activator. Another Portland cement clinker LCM may include Portland cement clinker and a crosslinked fluid, such as a polyuronide cross…
- Who is the assignee on this patent?
- Saudi Arabian Oil Co
- What technology area does this patent fall under?
- Primary CPC classification C04B28/04. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Oct 22 2019 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 12 related publications on this page (citations in our corpus or others sharing the same primary CPC).