Y10S 507/925
Completion or workover fluid
Y10S507/925 (Completion or workover fluid) appears on 269 US grants and 58 published applications in this corpus.
Search patents in Y10S- Granted patents
- 269
- Published applications
- 58
- Assignees
- 85
- Inventors
- 403
- Latest grant
- 2 Apr 2019
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 4 | 0 |
| 1978 | 2 | 0 |
| 1979 | 4 | 0 |
| 1980 | 4 | 0 |
| 1981 | 5 | 0 |
| 1982 | 6 | 0 |
| 1983 | 12 | 0 |
| 1984 | 20 | 0 |
| 1985 | 13 | 0 |
| 1986 | 14 | 0 |
| 1987 | 12 | 0 |
| 1988 | 14 | 0 |
| 1989 | 7 | 0 |
| 1990 | 9 | 0 |
| 1991 | 8 | 0 |
| 1992 | 9 | 0 |
| 1993 | 5 | 0 |
| 1994 | 5 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 5 | 0 |
| 1998 | 8 | 0 |
| 1999 | 8 | 0 |
| 2000 | 9 | 0 |
| 2001 | 5 | 3 |
| 2002 | 4 | 6 |
| 2003 | 12 | 6 |
| 2004 | 5 | 8 |
| 2005 | 3 | 5 |
| 2006 | 8 | 7 |
| 2007 | 5 | 2 |
| 2008 | 5 | 7 |
| 2009 | 5 | 2 |
| 2010 | 4 | 4 |
| 2011 | 7 | 5 |
| 2012 | 6 | 2 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 1 | 1 |
| 2016 | 3 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Methods of using invert emulsion fluids with high internal phase concentration2 Apr 2019US 10,246,627 B2M - I L. L. C.
- Method and apparatus for delayed flow or pressure change in wells14 Jun 2016US RE46,028 E1Kureha Corporation
- Application of degradable polymers in sand control29 Mar 2016US RE45,950 E1
- Application of degradable polymers in sand control19 Jan 2016US RE45,849 E1
- Methods of using invert emulsion fluids with high internal phase concentration14 Apr 2015US 9,004,167 B2M - I L. L. C.
- Methods of using invert emulsion fluids with high internal phase concentration2 Jul 2015US 2015/0184062 A1M - I L. L. C.
- Application of Degradable Polymers in Sand Control25 Oct 2012US 2012/0267101 A1
- Methods of using invert emulsion fluids with high internal phase concentration22 Mar 2012US 2012/0067575 A1M - I L. L. C.
- System and method for low damage gravel packing3 Nov 2011US 2011/0265985 A1Schlumberger Technology Corporation
- Polycationic Viscoelastic Compositions4 Aug 2011US 2011/0190530 A1Stepan Company
Most cited
By later US patents
- Hydrated hydroxyethyl cellulose compositions213US 4,496,468 ANL Industries, Inc. · 1985
- Well treatment process210US 4,957,165 AConoco Inc. · 1990
- Composition and placement process for oil field chemicals203US 4,986,354 AConoco Inc. · 1991
- Fluids and techniques for hydrocarbon well completion191US 6,569,814 B1Schlumberger Technology Corporation · 2003
- Aqueous wellbore service fluids166US 4,725,372 AThe Dow Chemical Company · 1988