1
Paul W Fischer, David S Pye, Julius P Gallus: Method of conducting drilling operations. Union Oil Company of California, Richard C Hartman, Dean Sandford, John E Vanderburgh, November 2, 1976: US03989632 (22 worldwide citation)

A method for reducing the loss of fluid through the walls of a well penetrating a permeable subterranean formation during completion, workover and other operations. The method provides for the use of a fluid comprising an aqueous dispersion of finely divided, slowly oil-soluble, water-insoluble soli ...


2
Joerg H Meyer, Leslie A Bennett: Method of conducting drilling operations using vertical seismic profiles. Schlumberger Technology Corporation, Steven L Christian, MArtin D Hyden, November 30, 1999: US05995446 (16 worldwide citation)

A method is described for providing improved seismic data to a driller to indicate position and spatial extent of a drilling target which may be up to several hundreds of feet ahead of a drill bit. In one embodiment, the method includes the steps of: survey design and data modeling, and definition o ...


3
Michael S Bittar, Baris Guner, Burkay Donderici, Luis E San Martin: Apparatus and method of landing a well in a target zone. Halliburton Energy Service, July 11, 2017: US09702240 (1 worldwide citation)

Various embodiments include apparatus and methods to land a well in a target zone with minimal or no overshoot of a target zone. The well may be directed to a target in the target zone based on the separation distance between a transmitter sensor (212) and a receiver sensor (214) being sufficiently ...


4
Sunil Kumar, Anthony A DiGiovanni, Danny E Scott, Hendrik John, Othon Monteiro: PDC sensing element fabrication process and tool. Baker Hughes Incorporated, TraskBritt, July 4, 2017: US09695683

A Polycrystalline Diamond Compact (PDC) cutter for a rotary drill bit is provided with an integrated sensor and circuitry for making measurements of a property of a fluid in the borehole and/or an operating condition of the drill bit. A method of manufacture of the PDC cutter and the rotary drill bi ...


5
PDC SENSING ELEMENT FABRICATION PROCESS AND TOOL. October 12, 2017: US20170292376-A1

A Polycrystalline Diamond Compact (PDC) cutter for a rotary drill bit is provided with an integrated sensor and circuitry for making measurements of a property of a fluid in the borehole and/or an operating condition of the drill bit. A method of manufacture of the PDC cutter and the rotary drill bi ...