1
Lerner Daniel, Masak Peter: Measurement while drilling tool.. Anadrill Int, Schlumberger Services Petrol, November 8, 1995: EP0681090-A2 (37 worldwide citation)

An integrated modulator and turbine-generator includes a turbine impeller which is directly coupled by a drive shaft to a modulator rotor downstream from the impeller. The modulator rotor is further coupled by a drive shaft and a gear train to a three phase alternator downstream of the modulator rot ...


2
Kosmala Alexandre, Malone David, Masak Peter: Mud pump noise cancellation system.. Anadrill Int, Schlumberger Services Petrol, April 7, 1993: EP0535729-A2 (3 worldwide citation)

Methods for recovering a LWD or MWD data signal in the presence of mud pump noise are provided and generally comprise calibrating the drilling mud pressure as a function of the mud pump piston position, and then tracking the piston position during transmission of the LWD or MWD data signal and using ...


3
Masak Peter C, Malone David L: Inverse vertical seismic profiling. Anadrill Int, Schlumberger Services Petrol, September 17, 1997: EP0795764-A2 (3 worldwide citation)

A reverse VSP system is provided and uses a frequency-controllable modulator of an MWD tool as a downhole seismic source. The modulator has a rotor and stator arranged to provide substantially sinusoidal outputs, and is controlled to provide a "Vibroseis"-type frequency sweep (preferably from 1 Hz t ...


4
Prammer Manfred G, Dudley James H, Masak Peter, Goodman George D, Morys Marian, Jones Dale A, Bartel Roger P, Chen Kang David C, Larronde Michael L, Rodney Paul F, Smaardyk John E: Method and apparatus for nuclear magnetic resonance measuring while drilling. Numar, December 6, 2000: EP1057047-A1 (2 worldwide citation)

A NMR measurement-while-drilling tool has a permanent magnet (12) with a magnetic field direction substantially perpendicular to the axis of the borehole (36), a steel collar (10) of a non-magnetic material surrounding the magnet, antenna (14) positioned outside the collar, and a soft magnetic mater ...


5
Prammer Manfred G, Masak Peter: Temperature compensated magnetic circuit. Halliburton Energy Serv, September 17, 2003: EP1344090-A1 (1 worldwide citation)

An apparatus is disclosed for generating a magnetic field of high field strength, spatial uniformity and minimal drift of magnetic field intensity over a temperature range of about 0 DEG C. to 175 DEG C. This apparatus may be used in a standard modular logging tool for direct downhole NMR measuremen ...


6
Kusko David, Masak Peter: Mesure en cours de forage de pulseur bidirectionnel fonctionnant dans un canal decoulement quasi laminaire annulaire, Measurement while drilling bi-directional pulser operating in a near laminar annular flow channel. Kusko David, Masak Peter, Kusko David, Masak Peter, Borden Ladner Gervais, May 3, 2011: CA2609922 (1 worldwide citation)

A device, method, and system for creating a pressure pulse from drilling fluid within a drill string in a down hole drill collar for enabling measurement-while drilling. The device and system are designed such that primarily laminar flow exists in the area surrounding the pulser apparatus. The metho ...


7
Prammer Manfred G, Bouton John C, Masak Peter: Magnetic resonance fluid analysis apparatus and method. Halliburton Energy Serv, March 3, 2004: EP1393096-A1

Apparatus (1, 3) and method for providing in-situ data of formation fluids at true reservoir conditions. The apparatus has NMR chamber of the flow-through type, so it is no longer necessary to divert a sample for the basic NMR analysis or transfer it uphole for laboratory analysis. The apparatus is ...


8
Lerner Daniel, Masak Peter: Turbogenerateur et modulateur integre adapte a un appareil de mesure en cours de forage, Integrated modulator and turbine-generator for a measurement while drilling tool. Schlumberger Canada, Schlumberger Canada, SMART & BIGGAR, November 27, 2007: CA2147592

An integrated modulator and turbine-generator includes a turbine impeller which is directly coupled by a drive shaft to a modulator rotor downstream from the impeller. The modulator rotor is further coupled by a drive shaft and a gear train to a three phase alternator downstream of the modulator rot ...


9
Masak Peter C, Malone David L: Systeme de mesure de profil sismique vertical inverse faisant appel a un outil de mesure pendant le forage en tant que source sismique, Inverse vertical seismic profiling using a measurement while drilling tool as a seismic source. Schlumberger Canada, Schlumberger Canada, SMART & BIGGAR, June 11, 2002: CA2198533

A reverse VSP system is provided and uses a frequency-controllable modulator of an MWD tool as a downhole seismic source. The modulator has a rotor and stator arra nged to provide substantially sinusoidal outputs, and is controlled to provide a "Vibros eis"-type frequency sweep (preferably from 1 Hz ...


10
Haverstock Wayne, Krywchuk David, Masak Peter: Support pour tige de pompe sur forage hors verticale, Pump jack for slant wells. Universal, JOHNSON ERNEST PETER, March 4, 1986: CA1201327

"PUMP JACK FOR SLANT WELLS" ABSTRACT OF THE DISCLOSURE The pump jack is of conventional API front-mounted geometryClass III configuration, but is provided with an angularly disposed walkingbeam, so as to be able to pump a slant rod string. To incorporateversatility into the unit so that a single mod ...