C09K 2208/10
Nanoparticle-containing well treatment fluids
C09K2208/10 (Nanoparticle-containing well treatment fluids) appears on 909 US grants and 1,155 published applications in this corpus.
Search patents in C09K- Granted patents
- 909
- Published applications
- 1,155
- Assignees
- 253
- Inventors
- 1,738
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2003 | 0 | 1 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 2 | 1 |
| 2007 | 1 | 4 |
| 2008 | 0 | 9 |
| 2009 | 1 | 18 |
| 2010 | 8 | 18 |
| 2011 | 6 | 14 |
| 2012 | 14 | 34 |
| 2013 | 20 | 42 |
| 2014 | 20 | 37 |
| 2015 | 26 | 67 |
| 2016 | 26 | 71 |
| 2017 | 42 | 84 |
| 2018 | 65 | 89 |
| 2019 | 90 | 105 |
| 2020 | 93 | 126 |
| 2021 | 112 | 95 |
| 2022 | 97 | 69 |
| 2023 | 102 | 91 |
| 2024 | 77 | 76 |
| 2025 | 75 | 64 |
| 2026 | 32 | 38 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Surface-modified nanoparticle compositions and related applications in subterranean hydrocarbon recovery15 Sep 2026US 12,735,626 B2
- Methods for enhancing the permeability of reactive rock reservoirs25 Aug 2026US 12,716,340 B2Saudi Arabian Oil Company
- System and method for leak prevention18 Aug 2026US 12,709,959 B2Schlumberger Technology Corporation
- Modified multi-walled carbon nanotubes including multi-walled carbon nanotubes and carboxylate moieties and related methods21 Jul 2026US 12,686,616 B2King Fahd University of Petroleum and Minerals
- Hydrate decomposition inhibiting composition, coupling enhanced solid hydrate, and method for improving solid hydrate storage and transportation stability30 Jun 2026US 12,668,734 B2China Petroleum & Chemical Corporation
- Providing selective dissolvable coatings on a multi-shell core system for inflow control devices1 Oct 2026US 2026/0297418 A1Saudi Arabian Oil Company
- Process for preparing an oil-well cement slurry24 Sep 2026US 2026/0286209 A1Oil and Natural Gas Corporation Limited
- High temperature gravel packing fluid system17 Sep 2026US 2026/0275185 A1Schlumberger Technology Corporation
- Lignin-based compositions and related methods10 Sep 2026US 2026/0265600 A1LignoSol IP Limited
- Methods and compositions for squeeze life enhancement10 Sep 2026US 2026/0265601 A1ChampionX LLC
Most cited
By later US patents
- Well treatment composition and methods utilizing nano-particles149US 7,559,369 B2Halliubrton Energy Services, Inc. · 2009
- Methods for controlling the fluid loss properties of viscoelastic surfactant based fluids127US 7,081,439 B2Schlumberger Technology Corporation · 2006
- Cement compositions comprising latex and a nano-particle and associated methods121US 7,784,542 B2Halliburton Energy Services.Inc. · 2010
- Nanofluids and methods of use for drilling and completion fluids104US 8,822,386 B2Baker Hughes Incorporated · 2014
- Stabilizing emulsified acids for carbonate acidizing90US 8,403,051 B2Baker Hughes Incorporated · 2013