E21B 47/0025
Generating an image of the borehole wall using down-hole measurements
Official title: {generating an image of the borehole wall using down-hole measurements, e.g. acoustic or electric}
E21B47/0025 (Generating an image of the borehole wall using down-hole measurements) appears on 357 US grants and 442 published applications in this corpus.
Search patents in E21B- Granted patents
- 357
- Published applications
- 442
- Assignees
- 123
- Inventors
- 927
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 6 | 0 |
| 1988 | 4 | 0 |
| 1989 | 7 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 1 |
| 2004 | 0 | 4 |
| 2005 | 1 | 3 |
| 2006 | 3 | 5 |
| 2007 | 4 | 3 |
| 2008 | 1 | 1 |
| 2009 | 2 | 2 |
| 2010 | 2 | 6 |
| 2011 | 2 | 2 |
| 2012 | 6 | 10 |
| 2013 | 1 | 2 |
| 2014 | 3 | 6 |
| 2015 | 4 | 9 |
| 2016 | 4 | 18 |
| 2017 | 13 | 27 |
| 2018 | 12 | 23 |
| 2019 | 29 | 22 |
| 2020 | 18 | 19 |
| 2021 | 19 | 68 |
| 2022 | 43 | 56 |
| 2023 | 45 | 43 |
| 2024 | 48 | 36 |
| 2025 | 32 | 35 |
| 2026 | 21 | 40 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System and method for untethered multifinger imaging of a wellbore inner wall29 Sep 2026US 12,747,662 B2Saudi Arabian Oil Company
- Learning hydrocarbon distribution from seismic image29 Sep 2026US 12,748,229 B2Landmark Graphics Corporation
- Advanced optical imaging of tubulars15 Sep 2026US 12,735,976 B2DarkVision Technologies Inc.
- Methods and systems for determining well shut-in pressures of oil and gas well drilling15 Sep 2026US 12,735,982 B2Southwest Petroleum University
- Identifying unconformities in subsurface formations1 Sep 2026US 12,724,171 B2Saudi Arabian Oil Company
- Calibration methods for oil based mud imager tools17 Sep 2026US 2026/0275856 A1Halliburton Energy Services.Inc.
- Video camera-based noise and signal separation for mud pulse telemetry10 Sep 2026US 2026/0266172 A1Halliburton Energy Services.Inc.
- Systems and methods for generating synthetic fracture images of subsurface layers for drilling wells6 Aug 2026US 2026/0226822 A1Saudi Arabian Oil Company
- Downhole tubular inspection using partial-saturation eddy currents30 Jul 2026US 2026/0218601 A1Halliburton Energy Services.Inc.
- Method and apparatus for making imaging measurements of a formation core30 Jul 2026US 2026/0219413 A1Halliburton Energy Services.Inc.
Most cited
By later US patents
- Logging while drilling borehole imaging and dipmeter device292US 5,899,958 AHalliburton Energy Services.Inc. · 1999
- Downhole tools using artificial intelligence based control225US 5,947,213 AIntelligent Inspection Corporation · 1999
- Downhole tools using artificial intelligence based control170US 6,026,911 AIntelligent Inspection Corporation · 2000
- Method and apparatus for producing an image log of a wall of a borehole penetrating an earth formation101US 4,567,759 ASchlumberger Technology Corporation · 1986
- Method and apparatus for creating an image of an earth borehole or a well casing80US 5,987,385 ADresser Industries, Inc. · 1999