The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 20, 2007

Filed:

Jan. 14, 2004
Applicants:

Ian Alexander Millar, Aberdeen, GB;

Douwe Johannes Runia, Rijswijk, NL;

Paul Neilson Wood, Scotland, GB;

Inventors:

Ian Alexander Millar, Aberdeen, GB;

Douwe Johannes Runia, Rijswijk, NL;

Paul Neilson Wood, Scotland, GB;

Assignee:

Shell Oil Company, Houston, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 47/00 (2006.01); E21B 10/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

A wellstring assembly comprising a tubular first wellstring part with a passageway; a second wellstring part co-operating with the first wellstring part; and a releasable wellstring-interconnecting means for selectively interconnecting the first and second wellstring parts; an auxiliary tool for manipulating the second wellstring part, which auxiliary tool can pass along the passageway in the first wellstring part to the second wellstring part, comprising a tool-connecting means for selectively connecting the auxiliary tool to the second wellstring part, and an operating means for operating the wellstring-interconnecting means.


Find Patent Forward Citations

Loading…