E21B 43/114
Perforators using direct fluid action on the wall to be perforated
Official title: Perforators using direct fluid action {on the wall to be perforated}, e.g. abrasive jets
E21B43/114 (Perforators using direct fluid action on the wall to be perforated) appears on 318 US grants and 329 published applications in this corpus.
Search patents in E21B- Granted patents
- 318
- Published applications
- 329
- Assignees
- 115
- Inventors
- 582
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 3 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 8 | 0 |
| 1995 | 4 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 5 | 0 |
| 1999 | 1 | 0 |
| 2000 | 4 | 0 |
| 2001 | 0 | 1 |
| 2002 | 2 | 0 |
| 2003 | 2 | 3 |
| 2004 | 1 | 0 |
| 2005 | 1 | 8 |
| 2006 | 3 | 14 |
| 2007 | 6 | 10 |
| 2008 | 7 | 16 |
| 2009 | 9 | 9 |
| 2010 | 7 | 11 |
| 2011 | 8 | 11 |
| 2012 | 9 | 16 |
| 2013 | 6 | 15 |
| 2014 | 15 | 26 |
| 2015 | 13 | 27 |
| 2016 | 25 | 32 |
| 2017 | 25 | 25 |
| 2018 | 22 | 19 |
| 2019 | 23 | 18 |
| 2020 | 22 | 11 |
| 2021 | 20 | 19 |
| 2022 | 13 | 11 |
| 2023 | 11 | 6 |
| 2024 | 7 | 7 |
| 2025 | 11 | 9 |
| 2026 | 5 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Rear-mounted double-channel abrasive jet cutting device15 Sep 2026US 12,735,960 B2CCTEG Chongqing Research Institute Co., Ltd.
- Perforator tool8 Sep 2026US 12,729,609 B2Wildcat Oil Tools, LLC
- Coiled tubing systems and methods for geothermal wells30 Jun 2026US 12,669,020 B2Schlumberger Technology Corporation
- Perforating tool with a hydraulically actuated assembly23 Jun 2026US 12,662,914 B2Saudi Arabian Oil Company
- Detonation module12 May 2026US 12,624,618 B2Schlumberger Technology Corporation
- Perforating tool with a hydraulically actuated assembly24 Sep 2026US 2026/0286813 A1Saudi Arabian Oil Company
- Systems and methods for minimizing effects of near-wellbore stresses and stress variations on formation rock in-situ stress testing16 Jul 2026US 2026/0201799 A1Schlumberger Technology Corporation
- Perforator tool4 Jun 2026US 2026/0153017 A1Wildcat Oil Tools, LLC
- Rear-mounted double-channel abrasive jet cutting device29 Jan 2026US 2026/0028900 A1CCTEG Chongqing Research Institute Co., Ltd.
- Method of well decommissioning in through-tubing applications8 Jan 2026US 2026/0009309 A1Schlumberger Technology Corporation
Most cited
By later US patents
- Well completions with expandable casing portions297US 5,396,957 AHalliburton Company · 1995
- Well completions with expandable casing portions290US 5,325,923 AHalliburton Company · 1994
- Subterranean formation fracturing methods268US 5,765,642 AHalliburton Energy Services.Inc. · 1998
- Coplanar angular jetting head for well perforating206US 5,499,678 AHalliburton Company · 1996
- Well completions using casing valves191US 4,949,788 AHalliburton Company · 1990