E21B 28/00
Vibration generating arrangements for boreholes or wells
Official title: Vibration generating arrangements for boreholes or wells, e.g. for stimulating production ({for fishing for or freeing objects E21B31/005;} for transmitting measuring-signals E21B47/14; for geophysical measurements G01V1/02)
E21B28/00 (Vibration generating arrangements for boreholes or wells) appears on 476 US grants and 453 published applications in this corpus.
Search patents in E21B- Granted patents
- 476
- Published applications
- 453
- Assignees
- 197
- Inventors
- 814
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 4 | 0 |
| 1982 | 4 | 0 |
| 1983 | 5 | 0 |
| 1984 | 6 | 0 |
| 1985 | 4 | 0 |
| 1986 | 2 | 0 |
| 1987 | 6 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 4 | 0 |
| 1994 | 4 | 0 |
| 1995 | 4 | 0 |
| 1996 | 6 | 0 |
| 1997 | 1 | 0 |
| 1998 | 6 | 0 |
| 1999 | 3 | 0 |
| 2000 | 7 | 0 |
| 2001 | 10 | 5 |
| 2002 | 7 | 7 |
| 2003 | 5 | 5 |
| 2004 | 6 | 4 |
| 2005 | 5 | 13 |
| 2006 | 9 | 11 |
| 2007 | 5 | 5 |
| 2008 | 3 | 3 |
| 2009 | 1 | 12 |
| 2010 | 6 | 14 |
| 2011 | 6 | 19 |
| 2012 | 7 | 32 |
| 2013 | 23 | 17 |
| 2014 | 15 | 34 |
| 2015 | 23 | 34 |
| 2016 | 27 | 29 |
| 2017 | 26 | 33 |
| 2018 | 29 | 29 |
| 2019 | 32 | 34 |
| 2020 | 40 | 32 |
| 2021 | 23 | 15 |
| 2022 | 18 | 21 |
| 2023 | 28 | 15 |
| 2024 | 15 | 12 |
| 2025 | 14 | 8 |
| 2026 | 10 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method and tool for cementing wellbore8 Sep 2026US 12,729,599 B2
- Cavitation, dissolver, and sand integration for wellbore descaling25 Aug 2026US 12,716,328 B1Saudi Arabian Oil Company
- Vibratory grouting rod with drilling and vibrating functions and method for using the same16 Jun 2026US 12,655,598 B2
- Enhanced hydrogen generation from sonication of SI+ mixtures for artificial lift16 Jun 2026US 12,655,704 B1Saudi Arabian Oil Company
- Use of high-power ultrasound for improved hole cleaning in drilling operations26 May 2026US 12,637,920 B2Rexonic Ultrasonics AG
- Method and tool for cementing wellbore17 Sep 2026US 2026/0275826 A1Baker Hughes Oilfield Operations LLC
- Method and tool for cementing wellbore13 Aug 2026US 2026/0235012 A1Baker Hughes Oilfield Operations LLC
- Systems and methods for inertial cavitation inception at high static pressures11 Jun 2026US 2026/0160146 A1Aramco Innovations LLC
- Advancing a tubular string in a wellbore7 May 2026US 2026/0125955 A1Thru Tubing Solutions, Inc.
- Advancing a tubular string in a wellbore7 May 2026US 2026/0125956 A1
Most cited
By later US patents
- Method and apparatus for combating encroachment by in situ treated formations344US 4,576,231 ATexaco Inc. · 1986
- Recovery of hydrocarbons from partially exhausted oil wells by mechanical wave heating301US 4,049,053 A1977
- Method and apparatus for subterranean thermal conditioning299US 6,112,808 A2000
- Process to increase petroleum recovery from petroleum reservoirs166US 5,282,508 AEllingsen and Associates A.S. · 1994
- Hydraulic fracturing system and method148US 9,222,346 B12015