Water-soluble associative amphoteric polymer as a rheology modifier for subterranean treatments
US-2024199939-A1 · Jun 20, 2024 · US
Cement Set Activators for Set-Delayed Cement Compositions and Associated Methods
US2016280982A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016280982-A1 |
| Application number | US-201615162245-A |
| Country | US |
| Kind code | A1 |
| Filing date | May 23, 2016 |
| Priority date | Mar 9, 2012 |
| Publication date | Sep 29, 2016 |
| Grant date | — |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
Disclosed herein are cement compositions and methods of using set-delayed cement compositions in subterranean formations. In one embodiment, a method of cementing in a subterranean formation is described. The method may comprise providing a set-delayed cement composition comprising water, pumice, hydrated lime, and a set retarder; activating the set-delayed cement composition with a liquid additive to produce an activated cement composition, wherein the liquid additive comprises a monovalent salt, a polyphosphate, a dispersant, and water; and allowing the activated cement composition to set.
First claim
Opening claim text (preview).
What is claimed is: 1 . An activated cement composition comprising: water; pumice; hydrated lime; a set retarder; a monovalent salt; and a polyphosphate. 2 . The composition of claim 1 further comprising a dispersant. 3 . The composition of claim 1 wherein the polyphosphate comprises sodium hexametaphosphate. 4 . The composition of claim 1 wherein the monovalent salt comprises sodium sulfate. 5 . The composition of claim 1 wherein the polyphosphate comprises sodium hexametaphosphate, the monovalent salt comprises sodium sulfate, and wherein the activated cement composition further comprises a polycarboxylated ether dispersant.
Assignees
Inventors
Classifications
for cementing casings into boreholes · CPC title
Plastering the borehole wall; Injecting into the formation · CPC title
for squeeze cementing, e.g. for repairing · CPC title
Retarder inhibited mortars activated by the addition of accelerators or retarder-neutralising agents · CPC title
Microsilica, e.g. colloïdal silica (preparing microsilica slurries or suspensions C04B18/148) · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US2016280982A1 cover?
- Disclosed herein are cement compositions and methods of using set-delayed cement compositions in subterranean formations. In one embodiment, a method of cementing in a subterranean formation is described. The method may comprise providing a set-delayed cement composition comprising water, pumice, hydrated lime, and a set retarder; activating the set-delayed cement composition with a liquid addi…
- Who is the assignee on this patent?
- Halliburton Energy Services Inc
- What technology area does this patent fall under?
- Primary CPC classification C09K8/467. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu Sep 29 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). 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).