Terris F Walker, Age 7514330 Spyglen Ln, Cypress, TX 77429

8561707, Oct 22, 2013

Mar 8, 2011

13/042761

Hyun Woo Jin - Easton PA, US
Srinivasan Rajagopalan - Easton PA, US
Adnan Ozekcin - Bethlehem PA, US
Mehmet Deniz Ertas - Bethlehem PA, US
Bo Zhao - Houston TX, US
Jeffrey Roberts Bailey - Houston TX, US
Terris Field Walker - Cypress TX, US

ExxonMobil Research and Engineering Company - Annandale NJ

E21B 17/10

166380, 1662424, 166902

Provided are drill stem assemblies with ultra-low friction coatings for subterraneous drilling operations. In one form, the coated drill stem assemblies for subterraneous rotary drilling operations include a body assembly with an exposed outer surface including a drill string coupled to a bottom hole assembly, a coiled tubing coupled to a bottom hole assembly, or a casing string coupled to a bottom hole assembly and an ultra-low friction coating on at least a portion of the exposed outer surface of the body assembly, hardbanding on at least a portion of the exposed outer surface of the body assembly, an ultra-low friction coating on at least a portion of the hardbanding, wherein the ultra-low friction coating comprises one or more ultra-low friction layers, and one or more buttering layers interposed between the hardbanding and the ultra-low friction coating. The coated drill stem assemblies disclosed herein provide for reduced friction, vibration (stick-slip and torsional), abrasion, and wear during straight hole or directional drilling to allow for improved rates of penetration and enable ultra-extended reach drilling with existing top drives.

8590627, Nov 26, 2013

Feb 22, 2011

13/032032

Hyun Woo Jin - Easton PA, US
Srinivasan Rajagopalan - Easton PA, US
Adnan Ozekcin - Bethlehem PA, US
Mehmet Deniz Ertas - Bethlehem PA, US
Bo Zhao - Houston TX, US
Jeffrey Roberts Bailey - Houston TX, US
Terris Field Walker - Cypress TX, US

ExxonMobil Research and Engineering Company - Annandale NJ

E21B 17/10

166380, 1662424, 166902

Provided are coated sleeved oil and gas well production devices and methods of making and using such coated sleeved devices. In one form, the coated sleeved oil and gas well production device includes one or more cylindrical bodies, one or more sleeves proximal to the outer diameter or inner diameter of the one or more cylindrical bodies, hardbanding on at least a portion of the exposed outer surface, exposed inner surface, or a combination of both exposed outer or inner surface of the one or more sleeves, and a coating on at least a portion of the inner sleeve surface, the outer sleeve surface, or a combination thereof of the one or more sleeves. The coating includes one or more ultra-low friction layers, and one or more buttering layers interposed between the hardbanding and the ultra-low friction coating. The coated sleeved oil and gas well production devices may provide for reduced friction, wear, erosion, corrosion, and deposits for well construction, completion and production of oil and gas.

8602113, Dec 10, 2013

Mar 30, 2011

13/075677

Hyun Woo Jin - Easton PA, US
Srinivasan Rajagopalan - Easton PA, US
Adnan Ozekcin - Bethlehem PA, US
Mehmet Deniz Ertas - Bethlehem PA, US
Bo Zhao - Houston TX, US
Jeffrey Roberts Bailey - Houston TX, US
Terris Field Walker - Cypress TX, US

ExxonMobil Research and Engineering Company - Annandale NJ

E21B 17/10

166380, 1662424, 166902

Provided are coated oil and gas well production devices and methods of making and using such coated devices. In one form, the coated device includes one or more cylindrical bodies, hardbanding on at least a portion of the exposed outer surface, exposed inner surface, or a combination of both exposed outer or inner surface of the one or more cylindrical bodies, and a coating on at least a portion of the inner surface, the outer surface, or a combination thereof of the one or more cylindrical bodies. The coating includes one or more ultra-low friction layers, and one or more buttering layers interposed between the hardbanding and the ultra-low friction coating. The coated oil and gas well production devices may provide for reduced friction, wear, erosion, corrosion, and deposits for well construction, completion and production of oil and gas.

4596662, Jun 24, 1986

Jun 13, 1984

6/620214

Terris F. Walker - Houston TX
Jacob E. Strassner - Houston TX

Dresser Industries, Inc. - Dallas TX

C09K 702
E21B 4300

252 85C

This invention provides an additive composition for use for example in drilling, completion and workover fluids that minimizes production formation damage by increasing well clean up efficiency and aids in recovering oil held in place by dynamic capillary forces between oil, water and injected fluids, driving down the water saturation of the formation resulting in an increase in permeability to oil and resulting production. These additives, found to be especially useful in 38% calcium chloride workover and completion fluids, are also effective in 25 and 10% sodium chloride workover and completion fluids, as well as other brines, including bromides. The additives of this invention, when added to fluid workover and completion fluids, in addition to reducing interfacial tension in production formations to minimize water blocks resulting from use of workover and completion fluids, and compatability with brines, also promote water wetting, demulsification and are thermally stable over a useful range. These novel additives contain three essential ingredients, a diester monosulfosuccinate, a polypropoxylated quaternary ammonium chloride, and a sodium alkylaryl polyether sulfate.