Refracturing in a multistring casing with constant entrance hole perforating gun system and method
US-2018106136-A1 · Apr 19, 2018 · US
Assemblies and methods for minimizing pressure-wave damage
US8950487B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8950487-B2 |
| Application number | US-201113312082-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 6, 2011 |
| Priority date | Dec 6, 2011 |
| Publication date | Feb 10, 2015 |
| Grant date | Feb 10, 2015 |
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.
An assembly for minimizing damaging effects of pressure waves on devices in a wellbore. The assembly comprises a dynamic device disposed in the wellbore and generating pressure waves during actuation; a barrier device disposed in the wellbore and presenting an obstacle to the pressure waves generated by the dynamic device; and an occlusion disposed in the wellbore between the dynamic device and the barrier device which reduces the damaging effects of the pressure waves on the barrier device.
First claim
Opening claim text (preview).
What is claimed is: 1. An assembly for minimizing damaging effects of pressure waves in a wellbore, the assembly comprising: a dynamic device disposed in the wellbore and generating pressure waves in the wellbore, wherein the dynamic device comprises a dynamic overbalance device or a dynamic underbalance device; a barrier device disposed in the wellbore and presenting an obstacle to the pressure waves generated by the dynamic device; and an occlusion disposed in the wellbore b…
Assignees
Inventors
Classifications
- E21B43/1195Primary
Fixed Constructions · mapped topic
Fixed Constructions · mapped topic
Patent family
Related publications grouped by family.
External sources
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US8950487B2 cover?
- An assembly for minimizing damaging effects of pressure waves on devices in a wellbore. The assembly comprises a dynamic device disposed in the wellbore and generating pressure waves during actuation; a barrier device disposed in the wellbore and presenting an obstacle to the pressure waves generated by the dynamic device; and an occlusion disposed in the wellbore between the dynamic device and…
- Who is the assignee on this patent?
- Baumann Carlos Erik, Williams Harvey, Behrmann Lawrence A, and 6 more
- What technology area does this patent fall under?
- Primary CPC classification E21B43/1195. Mapped technology areas include Fixed Constructions.
- When was this patent published?
- Publication date Tue Feb 10 2015 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).