Abstract: A downhole tool disposed in a drillstring includes a bypass valve unit including at least one bypass port, wherein the bypass port is configured to control fluid flow from a central bore of the drillstring to a wellbore annulus, and an activation sub having a frangible obstruction disposed in a central bore thereof and configured to prevent fluid flow to an anchor downhole during a circulation mode, wherein the frangible obstruction is configured to break at a specified fluid pressure in the central bore to allow fluid communication to below.
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| # | Name | Date |
|---|---|---|
| 1 | 10405-DELNP-2011-AbandonedLetter.pdf | 2018-08-23 |
| 1 | 10405-DELNP-2011-Correspondence others-(05-01-2012).pdf | 2012-01-05 |
| 2 | 10405-DELNP-2011-Assignment-(05-01-2012).pdf | 2012-01-05 |
| 2 | 10405-DELNP-2011-FER.pdf | 2017-12-14 |
| 3 | Other Patent Document [30-05-2016(online)].pdf | 2016-05-30 |
| 3 | 10405-delnp-2011-Form-18-(06-01-2012).pdf | 2012-01-06 |
| 4 | 10405-DELNP-2011-Correspondence-Others-(31-03-2014).pdf | 2014-03-31 |
| 4 | 10405-delnp-2011-Correspondence others-(06-01-2012).pdf | 2012-01-06 |
| 5 | 10405-delnp-2011-Form-3-(15-05-2012).pdf | 2012-05-15 |
| 5 | 10405-delnp-2011-Abstract.pdf | 2012-07-27 |
| 6 | 10405-delnp-2011-Correspondence Others-(15-05-2012).pdf | 2012-05-15 |
| 6 | 10405-delnp-2011-Claims.pdf | 2012-07-27 |
| 7 | Abstract.jpg | 2012-07-27 |
| 7 | 10405-delnp-2011-Correspondence Others.pdf | 2012-07-27 |
| 8 | 10405-delnp-2011-GPA.pdf | 2012-07-27 |
| 8 | 10405-delnp-2011-Description (Complete).pdf | 2012-07-27 |
| 9 | 10405-delnp-2011-Drawings.pdf | 2012-07-27 |
| 9 | 10405-delnp-2011-Form-5.pdf | 2012-07-27 |
| 10 | 10405-delnp-2011-Form-1.pdf | 2012-07-27 |
| 10 | 10405-delnp-2011-Form-3.pdf | 2012-07-27 |
| 11 | 10405-delnp-2011-Form-2.pdf | 2012-07-27 |
| 12 | 10405-delnp-2011-Form-1.pdf | 2012-07-27 |
| 12 | 10405-delnp-2011-Form-3.pdf | 2012-07-27 |
| 13 | 10405-delnp-2011-Drawings.pdf | 2012-07-27 |
| 13 | 10405-delnp-2011-Form-5.pdf | 2012-07-27 |
| 14 | 10405-delnp-2011-Description (Complete).pdf | 2012-07-27 |
| 14 | 10405-delnp-2011-GPA.pdf | 2012-07-27 |
| 15 | 10405-delnp-2011-Correspondence Others.pdf | 2012-07-27 |
| 15 | Abstract.jpg | 2012-07-27 |
| 16 | 10405-delnp-2011-Claims.pdf | 2012-07-27 |
| 16 | 10405-delnp-2011-Correspondence Others-(15-05-2012).pdf | 2012-05-15 |
| 17 | 10405-delnp-2011-Abstract.pdf | 2012-07-27 |
| 17 | 10405-delnp-2011-Form-3-(15-05-2012).pdf | 2012-05-15 |
| 18 | 10405-delnp-2011-Correspondence others-(06-01-2012).pdf | 2012-01-06 |
| 18 | 10405-DELNP-2011-Correspondence-Others-(31-03-2014).pdf | 2014-03-31 |
| 19 | Other Patent Document [30-05-2016(online)].pdf | 2016-05-30 |
| 19 | 10405-delnp-2011-Form-18-(06-01-2012).pdf | 2012-01-06 |
| 20 | 10405-DELNP-2011-FER.pdf | 2017-12-14 |
| 20 | 10405-DELNP-2011-Assignment-(05-01-2012).pdf | 2012-01-05 |
| 21 | 10405-DELNP-2011-Correspondence others-(05-01-2012).pdf | 2012-01-05 |
| 21 | 10405-DELNP-2011-AbandonedLetter.pdf | 2018-08-23 |
| 1 | SEARCHSTRATEGY2_11-07-2017.pdf |