E21B 7/10
Correction of deflected boreholes
E21B7/10 (Correction of deflected boreholes) appears on 170 US grants and 160 published applications in this corpus.
Search patents in E21B- Granted patents
- 170
- Published applications
- 160
- Assignees
- 59
- Inventors
- 342
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 5 | 0 |
| 1986 | 4 | 0 |
| 1987 | 1 | 0 |
| 1988 | 4 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 5 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 1 |
| 2002 | 1 | 0 |
| 2003 | 1 | 1 |
| 2004 | 0 | 1 |
| 2005 | 2 | 3 |
| 2006 | 2 | 1 |
| 2007 | 4 | 4 |
| 2008 | 2 | 2 |
| 2009 | 3 | 3 |
| 2010 | 2 | 5 |
| 2011 | 3 | 3 |
| 2012 | 3 | 3 |
| 2013 | 3 | 6 |
| 2014 | 2 | 10 |
| 2015 | 1 | 9 |
| 2016 | 14 | 16 |
| 2017 | 5 | 8 |
| 2018 | 4 | 1 |
| 2019 | 9 | 16 |
| 2020 | 13 | 15 |
| 2021 | 18 | 12 |
| 2022 | 8 | 11 |
| 2023 | 6 | 5 |
| 2024 | 8 | 5 |
| 2025 | 10 | 14 |
| 2026 | 10 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Three-dimensional inversion of multi-component electromagnetic measurements using a fast proxy model25 Aug 2026US 12,716,347 B2Halliburton Energy Services.Inc.
- Systems and methods for drilling using tool face values predicted with a multiple-input-single output (miso) model23 Jun 2026US 12,662,883 B2Helmerich & Payne Technologies, LLC
- Automated control of trajectory of downhole drilling9 Jun 2026US 12,650,068 B2Schlumberger Technology Corporation
- Advanced inground operations, system and associated apparatus26 May 2026US 12,637,940 B2Merlin Technology, Inc.
- Methods for predicting and adapting to high frequency torsional oscillation5 May 2026US 12,618,317 B2Schlumberger Technology Corporation
- Methods for predicting and adapting to high frequency torsional oscillation10 Sep 2026US 2026/0266169 A1Schlumberger Technology Corporation
- Downhole closed-loop anti-tilting tool20 Aug 2026US 2026/0243133 A1China National Petroleum Corporation
- Wellbore drill deviation handling6 Aug 2026US 2026/0226821 A1Schlumberger Technology Corporation
- System and method for drilling event detection16 Jul 2026US 2026/0201795 A1Motive Drilling Technologies, Inc.
- Method for intervening on a ground drilling apparatus; device functionally connected to a ground drilling apparatus; computer-readable storage medium and ground drilling apparatus25 Jun 2026US 2026/0176962 A1TRACTO-TECHNIK GmbH & Co. KG
Most cited
By later US patents
- Automatic path generation and correction system109US 7,000,710 B1The Charles Machine Works, Inc. · 2006
- Wellbore milling guide and method90US 5,727,629 AWeatherford/Lamb, Inc. · 1998
- Control method for use with a steerable drilling system89US 7,136,795 B2Schlumberger Technology Corporation · 2006
- Drill bits with predictable walk tendencies69US 5,937,958 ASmith International, Inc. · 1999
- Control method for use with a steerable drilling system64US 6,601,658 B1Schlumberger WCP LTD · 2003