E21B 21/066
With further treatment of the solids
Official title: {with further treatment of the solids, e.g. for disposal}
E21B21/066 (With further treatment of the solids) appears on 336 US grants and 308 published applications in this corpus.
Search patents in E21B- Granted patents
- 336
- Published applications
- 308
- Assignees
- 166
- Inventors
- 608
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 6 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 4 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 5 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 7 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 6 | 0 |
| 1997 | 2 | 0 |
| 1998 | 9 | 0 |
| 1999 | 7 | 0 |
| 2000 | 8 | 0 |
| 2001 | 12 | 1 |
| 2002 | 6 | 5 |
| 2003 | 7 | 11 |
| 2004 | 6 | 9 |
| 2005 | 5 | 9 |
| 2006 | 6 | 8 |
| 2007 | 6 | 14 |
| 2008 | 7 | 17 |
| 2009 | 7 | 10 |
| 2010 | 14 | 16 |
| 2011 | 10 | 8 |
| 2012 | 12 | 17 |
| 2013 | 7 | 11 |
| 2014 | 10 | 16 |
| 2015 | 13 | 16 |
| 2016 | 10 | 15 |
| 2017 | 10 | 20 |
| 2018 | 9 | 18 |
| 2019 | 12 | 14 |
| 2020 | 18 | 22 |
| 2021 | 21 | 12 |
| 2022 | 6 | 11 |
| 2023 | 18 | 11 |
| 2024 | 15 | 7 |
| 2025 | 6 | 3 |
| 2026 | 4 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Evaluating hydrocarbon exploration and recovery operations fluids based on carbon footprint14 Jul 2026US 12,682,358 B2
- System and method for removing drilling fluid from drill cuttings using direct heat12 May 2026US 12,623,162 B2Elavo Energy Solutions Ltd.
- Drill cuttings composite core manufacturing method and apparatus5 May 2026US 12,618,299 B1Imperative Chemical Partners Inc.
- Dynamic balancing of well construction and well operations planning and rig equipment total cost of ownership24 Mar 2026US 12,586,023 B2Schlumberger Technology Corporation
- Cuttings imaging for determining geological properties27 May 2025US 12,315,137 B2Schlumberger Technology Corporation
- System and method for removing drilling fluid from drill cuttings using direct heat13 Aug 2026US 2026/0233121 A1Elavo Energy Solutions Ltd.
- Cuttings treatment using chemically enhanced cavitation6 Aug 2026US 2026/0226806 A1Schlumberger Technology Corporation
- Solids treatment using fluidized bed process16 Jul 2026US 2026/0201761 A1Schlumberger Technology Corporation
- Sand and gas quantification and automated control of flowback operations9 Jul 2026US 2026/0193950 A1FMC Technologies, Inc.
- Method and system for managing drilling waste21 May 2026US 2026/0139190 A1Baker Hughes Oilfield Operations LLC
Most cited
By later US patents
- Cuttings injection system and method216US 6,321,860 B12001
- Solvent soaps and methods employing same152US 5,723,423 AUnion Oil Company of California, dba UNOCAL · 1998
- Disposal and reclamation of drilling wastes139US 4,942,929 AAtlantic Richfield Company · 1990
- Drilling fluid remediation system113US 5,570,749 AOnsite Technology, L.L.C. · 1996
- Apparatus for washing drill cuttings103US 4,546,783 AFlo Trend Shares, Inc. · 1985