Open hole straddle tool
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 31, 2004
Grant Date -
Jun 19, 2003
app pub date -
Nov 26, 2002
filing date -
Dec 14, 2001
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A straddle packer tool comprises a mandrel and a housing. Spaced packers are carried by the housing. A plurality of bypass ports are arranged in the mandrel and housing for aligning in several positions: a first downhole position for bypassing fluid around the packers and through the mandrel; an intermediate position wherein the bypass ports are misaligned and a first internal pressure actuates the packers to isolate a zone and a second higher internal pressure releases a stop for enabling relative movement to an uphole position wherein the bypasses are misaligned and the mandrel's bore is opened to isolated zone.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully