Schultz; Darcy A.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Schultz; Darcy A..The latest application filed is for "method of isolating open perforations in horizontal wellbores using an ultra lightweight proppant".
- Schultz; Darcy A. - Calgary CA
| Patent | Date |
|---|---|
| Method of isolating open perforations in horizontal wellbores using an ultra lightweight proppant Grant 7,735,556 - Misselbrook , et al. June 15, 2 | 2010-06-15 |
| Method Of Isolating Open Perforations In Horizontal Wellbores Using An Ultra Lightweight Proppant App 20080271889 - Misselbrook; John Gordon ; et al. | 2008-11-06 |
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