E21B 47/10
Locating fluid leaks, intrusions or movements
E21B47/10 (Locating fluid leaks, intrusions or movements) appears on 3,118 US grants and 3,219 published applications in this corpus.
Search patents in E21B- Granted patents
- 3,118
- Published applications
- 3,219
- Assignees
- 811
- Inventors
- 5,806
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 22 | 0 |
| 1978 | 18 | 0 |
| 1979 | 17 | 0 |
| 1980 | 17 | 0 |
| 1981 | 18 | 0 |
| 1982 | 15 | 0 |
| 1983 | 14 | 0 |
| 1984 | 28 | 0 |
| 1985 | 23 | 0 |
| 1986 | 20 | 0 |
| 1987 | 18 | 0 |
| 1988 | 25 | 0 |
| 1989 | 33 | 0 |
| 1990 | 23 | 0 |
| 1991 | 31 | 0 |
| 1992 | 29 | 0 |
| 1993 | 28 | 0 |
| 1994 | 21 | 0 |
| 1995 | 15 | 0 |
| 1996 | 15 | 0 |
| 1997 | 18 | 0 |
| 1998 | 18 | 0 |
| 1999 | 30 | 0 |
| 2000 | 19 | 0 |
| 2001 | 28 | 12 |
| 2002 | 30 | 27 |
| 2003 | 23 | 30 |
| 2004 | 30 | 46 |
| 2005 | 23 | 25 |
| 2006 | 25 | 35 |
| 2007 | 24 | 42 |
| 2008 | 29 | 42 |
| 2009 | 32 | 57 |
| 2010 | 44 | 79 |
| 2011 | 42 | 102 |
| 2012 | 70 | 102 |
| 2013 | 63 | 122 |
| 2014 | 78 | 157 |
| 2015 | 86 | 162 |
| 2016 | 106 | 181 |
| 2017 | 135 | 197 |
| 2018 | 147 | 205 |
| 2019 | 219 | 259 |
| 2020 | 210 | 208 |
| 2021 | 227 | 240 |
| 2022 | 199 | 198 |
| 2023 | 224 | 223 |
| 2024 | 201 | 200 |
| 2025 | 195 | 179 |
| 2026 | 105 | 89 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Testing augmenation scheme by stipulating multi-phase flow meter (MFPM) engineering enhancement methodology “tassmeem”6 Oct 2026US 12,754,060 B2Saudi Arabian Oil Company
- Subsea pumping and booster system22 Sep 2026US 12,742,373 B2Baker Hughes Energy Technology UK Limited
- Method of using tracer compositions having a degradable polymer and a detectable component for tracing gas flow in a hydrocarbon reservoir22 Sep 2026US 12,742,383 B2Saudi Arabian Oil Company
- Automated method for optimizing adjustment factors of flow models15 Sep 2026US 12,736,712 B2Petroleo Brasileiro S.A. - Petrobras
- Fluid diverter8 Sep 2026US 12,729,622 B2Sentinel Subsea Ltd
- Integrated Multi-Physics Sensing for Real-Time Look-Ahead While Drilling8 Oct 2026US 2026/0309025 A1
- Method Of Abating Carbon Dioxide And Hydrogen Sulfide1 Oct 2026US 2026/0295509 A1Barnard College
- Real-time evaluation of perforation cluster efficiency in hydraulic fracturing wells using relative resistance1 Oct 2026US 2026/0298077 A1Halliburton Energy Services.Inc.
- Downhole flow monitoring and evaluation using distributed acoustic sensing and acoustic noise logging1 Oct 2026US 2026/0298078 A1Halliburton Energy Services.Inc.
- Optimizing co2 geosequestration with responsive tracers24 Sep 2026US 2026/0286812 A1Saudi Arabian Oil Company
Most cited
By later US patents
- Controlling hydrocarbon production609US 10,677,035 B2Saudi Arabian Oil Company · 2020
- Drilling systems with sensors for determining properties of drilling fluid downhole402US 6,176,323 B1Baker Hughes Incorporated · 2001
- Systems and methods for electromagnetic waterfront surveillance in a vicinity of an oil well347US 11,035,972 B2Saudi Arabian Oil Company · 2021
- Well control systems employing downhole network334US 5,959,547 ABaker Hughes Incorporated · 1999
- Method and system for monitoring smart structures utilizing distributed optical sensors332US 6,913,079 B22005