1
Joseph Varkey, Ravicharan Mydur, Noor Sait, Willem Wijnberg, Sumitra Kunathikom, Monica Darpi: Optical fiber cables for wellbore applications. Schlumberger Technology Corporation, David Cate, Michael Flynn, Jaime Castano, January 29, 2008: US07324730 (78 worldwide citation)

A cable which includes conductor bundles prepared from at least one optical fiber positioned either centrally or helically about the center axis of the bundle, metallic conductors helically positioned around the bundles center axis, and a polymeric insulation material. A method of making a cable inc ...


2
Vladimir Hernandez Solis, Montie W Morrison, Willem A Wijnberg, Sheng Chang, Joseph Varkey: Active cable for wellbore heating and distributed temperature sensing. Schlumberger Technology Corporation, Brandon S Clark, Rodney V Warfford, June 8, 2010: US07730936 (42 worldwide citation)

A heating and distributed-temperature-sensor cable permanently fixed in a wellbore that permits known amounts of heat to be introduced to subsurface formations and improved temperature measurement thereof. The heat is introduced into a target zone of the wellbore by forming the cable in two sections ...


3
Joseph Varkey, Anil Singh, Byong Jun Kim, Vladimir Hernandez, Shannon Nimchan, Dan Tabalan: High strength-to-weight-ratio slickline and multiline cables. Schlumberger Technology Corporation, Michael Flynn, David Cate, Jaime Castano, October 13, 2009: US07603011 (39 worldwide citation)

Slickline cables and methods for preparing such cables are disclosed. A slickline cable includes a pre-manufactured polymer composite rod having a channel therein; an optical fiber disposed in the channel; a fastener securing the optical fiber in the channel, wherein the fastener is selected from th ...


4
Joseph Varkey, Garud Sridhar: Enhanced electrical cables. Schlumberger Technology Corporation, David Cate, Michael Flynn, Jaime Castano, July 22, 2008: US07402753 (37 worldwide citation)

Electrical cables formed from at least one insulated conductor, a layer of inner armor wires disposed adjacent the insulated conductor, and a layer of shaped strength members disposed adjacent the outer periphery of the first layer of armor wires. A polymeric material is disposed in interstitial spa ...


5
Joseph Varkey: Cables with stranded wire strength members. Schlumberger Technology Corporation, David Cate, Jaime Castano, Dale Gaudier, February 5, 2008: US07326854 (34 worldwide citation)

High strength cables formed from strength members. The strength members are formed from bimetallic filament wires which may be encased within a jacket of polymeric material. The bimetallic filament wires wherein the filaments include a high strength core and a corrosion resistant alloy clad forming ...


6
Joseph Varkey, Byong Kim, Garud Sridhar, Noor Sait, Wayne Fulin: Enhanced electrical cables. Schlumburger Technology, David Cate, Tim Curington, Bill Batzer, January 30, 2007: US07170007 (30 worldwide citation)

Wellbore electrical cables according to the invention include at least one insulated conductor, at least one layer of armor wires surrounding the insulated conductor, and a polymeric material disposed in the interstitial spaces formed between armor wires and interstitial spaces formed between the ar ...


7
Joseph Varkey, Garud Sridhar: Enhanced electrical cables. Schlumberger Technology Corporation, Michael L Flynn, David Hofman, Jody Lynn Destefaris, April 20, 2010: US07700880 (19 worldwide citation)

Electrical cables formed from at least one insulated conductor, a layer of inner armor wires disposed adjacent the insulated conductor, and a layer of shaped strength members disposed adjacent the outer periphery of the first layer of armor wires. A polymeric material is disposed in interstitial spa ...


8
Joseph Varkey, Byong Jun Kim, Garud Sridhar, Noor Sait, Wayne Fulin: Enhanced wellbore electrical cables. Schlumberger Technology Corporation, Michael Flynn, David Cate, Jaime Castano, September 8, 2009: US07586042 (17 worldwide citation)

A method of preparing a cable comprises extruding first layer of polymeric material upon at least one insulated conductor; serving a first layer of armor wires upon the polymeric material; softening the polymeric material to partially embed armor wires; extruding a second layer of polymeric material ...


9
Joseph Varkey: Resilient electrical cables. Schlumberger Technology Corporation, Michael Flynn, David Cate, Jaime Castano, December 16, 2008: US07465876 (13 worldwide citation)

The cables include belted insulated conductors, a compression and creep resistant jacket surrounding the insulated conductors, a filler material and compression resistant filler rods placed in interstitial spaces formed between the compression and creep resistant jacket and the insulated conductors, ...


10
Joseph Varkey, Byong Jun Kim, Garud Sridhar, Noor Sait, Wayne Fulin: Enhanced wellbore electrical cables. Schlumberger Technology Corporation, Michael L Flynn, Jody DeStefanis, Charlotte Rutherford, July 24, 2012: US08227697 (9 worldwide citation)

Wellbore electrical cables include at least one insulated conductor, at least one layer of armor wires surrounding the insulated conductor, and a polymeric material disposed in the interstitial spaces formed between armor wires and interstitial spaces formed between the armor wire layer and insulate ...