High load universal joint for downhole rotary steerable drilling tool
US-9500033-B2 · Nov 22, 2016 · US
Rotary steerable drilling apparatus and method
US8967296B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8967296-B2 |
| Application number | US-42114706-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 31, 2006 |
| Priority date | May 31, 2006 |
| Publication date | Mar 3, 2015 |
| Grant date | Mar 3, 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.
The present invention relates to a rotary steerable drilling apparatus which separates the drill string from the bottom hole assembly thereby allowing the biasing means to push the bit in a given direction without having to lift the drill string along with the bottom hole assembly.
First claim
Opening claim text (preview).
What is claimed is: 1. A steerable bottom hole assembly for use in a well bore comprising: a universal joint connectable to a distal end of a drill string to allow the steerable bottom hole assembly to pivot freely at the universal joint without causing bending of the drill string; a control unit; a bias unit; and a drill bit, the control unit and the bias unit being located between the drill bit and the universal joint such that the control unit, the bias unit, and the dr…
Assignees
Inventors
Classifications
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 US8967296B2 cover?
- The present invention relates to a rotary steerable drilling apparatus which separates the drill string from the bottom hole assembly thereby allowing the biasing means to push the bit in a given direction without having to lift the drill string along with the bottom hole assembly.
- Who is the assignee on this patent?
- Downton Geoff, Smith David L, Schlumberger Technology Corp
- What technology area does this patent fall under?
- Primary CPC classification E21B7/067. Mapped technology areas include Fixed Constructions.
- When was this patent published?
- Publication date Tue Mar 03 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).