E21B 43/267
Reinforcing fractures by propping
Official title: reinforcing fractures by propping
E21B43/267 (Reinforcing fractures by propping) appears on 2,359 US grants and 2,653 published applications in this corpus.
Search patents in E21B- Granted patents
- 2,359
- Published applications
- 2,653
- Assignees
- 592
- Inventors
- 3,606
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 7 | 0 |
| 1978 | 5 | 0 |
| 1979 | 5 | 0 |
| 1980 | 5 | 0 |
| 1981 | 3 | 0 |
| 1982 | 4 | 0 |
| 1983 | 8 | 0 |
| 1984 | 14 | 0 |
| 1985 | 11 | 0 |
| 1986 | 14 | 0 |
| 1987 | 21 | 0 |
| 1988 | 10 | 0 |
| 1989 | 16 | 0 |
| 1990 | 17 | 0 |
| 1991 | 18 | 0 |
| 1992 | 10 | 0 |
| 1993 | 13 | 0 |
| 1994 | 16 | 0 |
| 1995 | 19 | 0 |
| 1996 | 25 | 0 |
| 1997 | 12 | 0 |
| 1998 | 12 | 0 |
| 1999 | 22 | 0 |
| 2000 | 14 | 0 |
| 2001 | 12 | 4 |
| 2002 | 14 | 9 |
| 2003 | 11 | 21 |
| 2004 | 15 | 22 |
| 2005 | 16 | 23 |
| 2006 | 15 | 24 |
| 2007 | 18 | 33 |
| 2008 | 16 | 45 |
| 2009 | 19 | 39 |
| 2010 | 40 | 46 |
| 2011 | 35 | 57 |
| 2012 | 32 | 63 |
| 2013 | 39 | 101 |
| 2014 | 61 | 149 |
| 2015 | 71 | 152 |
| 2016 | 94 | 275 |
| 2017 | 130 | 248 |
| 2018 | 207 | 280 |
| 2019 | 213 | 213 |
| 2020 | 199 | 168 |
| 2021 | 194 | 186 |
| 2022 | 187 | 136 |
| 2023 | 158 | 105 |
| 2024 | 106 | 100 |
| 2025 | 83 | 89 |
| 2026 | 67 | 65 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Surface treatment compositions used for carbon sequestration, hydraulic fracturing and increasing oil production from a subterranean formation, and method of hydraulic fracturing29 Sep 2026US 12,747,386 B2Aculon, Inc.
- Reverse emulsion for hydraulic fracturing22 Sep 2026US 12,742,112 B2Snf Group
- Method for processing sampled proppant during hydraulic fracturing22 Sep 2026US 12,742,385 B2Gti Energy
- Method for hydraulic fracturing of conventional and unconventional reservoirs by introducing energized fluid8 Sep 2026US 12,729,617 B2Schlumberger Technology Corporation
- Fuel, communications, and power connection systems and related methods1 Sep 2026US 12,723,942 B2BJ Energy Solutions, LLC
- Methods and systems for performing hydraulic fracturing operations8 Oct 2026US 2026/0309013 A1ExxonMobil Technology and Engineering Company
- Hydraulic fracturing method using lightweight proppant particles to reduce erosion and improve conductivity8 Oct 2026US 2026/0309016 A1ExxonMobil Technology and Engineering Company
- Fuel, communications, and power connection systems and related methods8 Oct 2026US 2026/0309574 A1BJ Energy Solutions, LLC
- Low-frequency strain data recorded with distributed acoustic sensing (das) for hydraulic fracturing monitoring8 Oct 2026US 2026/0309887 A1Schlumberger Technology Corporation
- Particulate compositions for iron sulfide remediation1 Oct 2026US 2026/0297419 A1ChampionX LLC
Most cited
By later US patents
- Method of pumping an oilfield fluid and split stream oilfield pumping systems475US 7,845,413 B2Schlumberger Technology Corporation · 2010
- Control of particulate flowback in subterranean wells379US 5,330,005 ADowell Schlumberger Incorporated · 1994
- Control of particulate flowback in subterranean wells372US 5,501,275 ADowell, a division of Schlumberger Technology Corporation · 1996
- Control of particulate flowback in subterranean wells358US 5,439,055 ADowell, a division of Schlumberger Technology Corporation · 1995
- Mobile, modular, electrically powered system for use in fracturing underground formations358US 9,103,193 B2Evolution Well Services, LLC · 2015