E21B 43/2408
Sagd in combination with other methods
Official title: {SAGD in combination with other methods}
E21B43/2408 (Sagd in combination with other methods) appears on 299 US grants and 364 published applications in this corpus.
Search patents in E21B- Granted patents
- 299
- Published applications
- 364
- Assignees
- 117
- Inventors
- 497
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 3 | 6 |
| 2004 | 2 | 0 |
| 2005 | 0 | 4 |
| 2006 | 6 | 5 |
| 2007 | 0 | 8 |
| 2008 | 5 | 3 |
| 2009 | 4 | 13 |
| 2010 | 5 | 14 |
| 2011 | 6 | 28 |
| 2012 | 10 | 23 |
| 2013 | 15 | 33 |
| 2014 | 23 | 51 |
| 2015 | 27 | 41 |
| 2016 | 23 | 17 |
| 2017 | 26 | 18 |
| 2018 | 22 | 24 |
| 2019 | 17 | 22 |
| 2020 | 27 | 13 |
| 2021 | 21 | 11 |
| 2022 | 9 | 13 |
| 2023 | 14 | 6 |
| 2024 | 10 | 5 |
| 2025 | 6 | 4 |
| 2026 | 5 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Methods of forming and maintaining conductive propped fractures in SAGD and geothermal well applications28 Jul 2026US 12,692,777 B2Halliburton Energy Services.Inc.
- Tubular for downhole use2 Jun 2026US 12,644,367 B2Pro-Pipe Service & Sales Ltd.
- Microbially enhanced thermal oil recovery26 May 2026US 12,637,932 B29668241 Canada Inc.
- Late life steam drive and gas strategy17 Feb 2026US 12,553,322 B2ConocoPhillips Company
- Iron oxide for in-situ oil upgrading via deasphalting3 Feb 2026US 12,540,537 B2Cenovus Energy Inc.
- Microbially enhanced thermal oil recovery3 Sep 2026US 2026/0258720 A19668241 Canada Inc.
- Methods of forming and maintaining conductive propped fractures in sagd and geothermal well applications28 May 2026US 2026/0146523 A1Halliburton Energy Services.Inc.
- Oil Production System and Method28 Aug 2025US 2025/0270911 A1
- End-of-life recovery of mobilized hydrocarbons7 Aug 2025US 2025/0250889 A1Cenovus Energy Inc.
- Microbially enhanced thermal oil recovery10 Apr 2025US 2025/0116179 A19668241 Canada Inc.
Most cited
By later US patents
- Insulated and/or concentric coiled tubing429US 6,015,015 ABJ Services Company, U.S.A. · 2000
- Method and apparatus for producing hydrocarbon bearing deposits in formations having shale layers360US 5,046,559 AShell Oil Company · 1991
- In situ thermal processing of a tar sands formation266US 7,066,254 B2Shell Oil Company · 2006
- Method for continuously producing viscous hydrocarbons by gravity drainage while injecting heated fluids205US 4,344,485 AExxon Production Research Company · 1982
- Loop systems and methods of using the same for conveying and distributing thermal energy into a wellbore157US 7,147,057 B2Halliburton Energy Services.Inc. · 2006