E21B 33/1246
Inflated by down-hole pumping means operated by a pipe string
Official title: {inflated by down-hole pumping means operated by a pipe string}
E21B33/1246 (Inflated by down-hole pumping means operated by a pipe string) appears on 49 US grants and 24 published applications in this corpus.
Search patents in E21B- Granted patents
- 49
- Published applications
- 24
- Assignees
- 18
- Inventors
- 95
- Latest grant
- 4 Mar 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 4 | 0 |
| 1983 | 6 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 4 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 1 |
| 2002 | 0 | 1 |
| 2003 | 1 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 1 | 3 |
| 2009 | 0 | 0 |
| 2010 | 1 | 1 |
| 2011 | 1 | 1 |
| 2012 | 1 | 1 |
| 2013 | 0 | 2 |
| 2014 | 1 | 0 |
| 2015 | 2 | 0 |
| 2016 | 1 | 1 |
| 2017 | 0 | 1 |
| 2018 | 0 | 1 |
| 2019 | 1 | 6 |
| 2020 | 2 | 0 |
| 2021 | 5 | 1 |
| 2022 | 0 | 2 |
| 2023 | 4 | 0 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Isolation device with multiple pressure stages to isolate well interval4 Mar 2025US 12,241,332 B1Halliburton Energy Services.Inc.
- Resettable packer system for pumping operations26 Dec 2023US 11,851,974 B1Saudi Arabian Oil Company
- Modular pressure cylinder for a downhole tool9 May 2023US 11,643,900 B2Exacta-Frac Energy Services, Inc.
- Method and apparatus for a joint-locking plug21 Mar 2023US 11,608,704 B2Solgix, Inc
- Methods for deployment of expandable packers through slim production tubing28 Feb 2023US 11,591,880 B2Saudi Arabian Oil Company
- Downhole packer assembly12 Mar 2026US 2026/0071512 A1Welltec A/S
- Method and apparatus for a joint-locking plug27 Oct 2022US 2022/0341282 A1Solgix, Inc
- Methods for deployment of expandable packers through slim production tubing3 Feb 2022US 2022/0034187 A1Saudi Arabian Oil Company
- Modular pressure cylinder for a downhole tool24 Jun 2021US 2021/0189831 A1Exacta-Frac Energy Services, Inc.
- Inflatable Downhole Packer Tool24 Oct 2019US 2019/0323317 A1Schlumberger Technology Corporation
Most cited
By later US patents
- Expandable packer isolation system111US 6,725,934 B2Baker Hughes Incorporated · 2004
- Integrated permeability measurement and resistivity imaging tool105US 5,335,542 ASchlumberger Technology Corporation · 1994
- Borehole tool, procedures, and interpretation for making permeability measurements of subsurface formations104US 5,269,180 ASchlumberger Technology Corporation · 1993
- Early evaluation system81US 5,540,280 AHalliburton Company · 1996
- Method and apparatus for controlling fluid flow within wellbore with selectively set and unset packer assembly77US 6,257,338 B1Halliburton Energy Services.Inc. · 2001