E21B 47/0175
Cooling arrangements
Official title: {Cooling arrangements}
E21B47/0175 (Cooling arrangements) appears on 166 US grants and 166 published applications in this corpus.
Search patents in E21B- Granted patents
- 166
- Published applications
- 166
- Assignees
- 70
- Inventors
- 363
- Latest grant
- 3 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 4 |
| 2003 | 2 | 3 |
| 2004 | 3 | 3 |
| 2005 | 3 | 9 |
| 2006 | 5 | 13 |
| 2007 | 6 | 3 |
| 2008 | 3 | 6 |
| 2009 | 4 | 3 |
| 2010 | 5 | 7 |
| 2011 | 3 | 16 |
| 2012 | 5 | 7 |
| 2013 | 6 | 10 |
| 2014 | 10 | 10 |
| 2015 | 7 | 5 |
| 2016 | 10 | 12 |
| 2017 | 8 | 6 |
| 2018 | 9 | 8 |
| 2019 | 3 | 12 |
| 2020 | 11 | 6 |
| 2021 | 10 | 3 |
| 2022 | 7 | 3 |
| 2023 | 3 | 3 |
| 2024 | 1 | 6 |
| 2025 | 4 | 4 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Management of drill string temperatures3 Mar 2026US 12,565,822 B1Schlumberger Technology Corporation
- Systems and methods for managing temperatures in wellbores3 Feb 2026US 12,540,530 B2Helmerich & Payne Technologies, LLC
- Systems and methods for downhole power generation9 Dec 2025US 12,492,616 B2Helmerich & Payne Technologies, LLC
- Using fluid pill for heat transfer downhole9 Sep 2025US 12,410,685 B2Halliburton Energy Services.Inc.
- Method for performing Raman spectroscopy within a logging while drilling instrument5 Aug 2025US 12,378,882 B2Schlumberger Technology Corporation
- Temperature management of downhole tools8 Oct 2026US 2026/0309023 A1Eavor Technologies Inc.
- Downhole fluid separation for drilling a well in a hot subterranean zone30 Apr 2026US 2026/0117609 A1Eavor Technologies Inc.
- Active cooling methods and systems for downhole tools26 Mar 2026US 2026/0085606 A1BP Exploration Operating Company Limited
- Systems and methods for downhole power generation5 Mar 2026US 2026/0063017 A1Helmerich & Payne Technologies, LLC
- Using fluid pill for heat transfer downhole4 Dec 2025US 2025/0369311 A1Halliburton Energy Services.Inc.
Most cited
By later US patents
- Electrical submersible pump and methods for enhanced utilization of electrical submersible pumps in the completion and production of wellbores267US 6,167,965 ABaker Hughes Incorporated · 2001
- Measurement of downhole component stress and surface conditions171US 9,057,247 B2Baker Hughes Incorporated · 2015
- Sub-sea pumping system and associated method including pressure compensating arrangement for cooling and lubricating128US 6,059,539 AWestinghouse Government Services Company LLC · 2000
- Sub-sea pumping system and an associated method including pressure compensating arrangement for cooling and lubricating fluid105US 5,795,135 AWestinghouse Electric Corp. · 1998
- Method and device for carrying out interventions in wells where high temperatures prevail101US 5,217,075 AInstitut Francais du Petrole · 1993