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1
US10301877B2
Publication/Patent Number: US10301877B2
Publication date: 2019-05-28
Application number: 15/376,887
Filing date: 2016-12-13
Abstract: A method for directionally drilling a portion of a borehole, comprising utilizing a drilling system associated with a drill string and a drill bit; rotating the drill string and placing an axial load on the drill string causing the drill string to move into compression; and stopping rotation of the drill string and with the drill string in compression, drilling a portion of the portion of the borehole while actively managing a toolface angle of the drill bit. A method for directionally drilling a portion of a borehole, comprising utilizing a drilling system associated with a drill string and a drill bit; rotating the drill string and placing an axial load on the drill string causing the drill string to move into compression; and ...more ...less
2
EP2558748B1
Publication/Patent Number: EP2558748B1
Publication date: 2018-07-25
Application number: 11769220.2
Filing date: 2011-04-14
3
US20180306284A1
Publication/Patent Number: US20180306284A1
Publication date: 2018-10-25
Application number: 16/017,716
Filing date: 2018-06-25
Abstract: A system has a pump with a power input, a power source and a continuously variable transmission (CVT) coupled to the power source and to the power input of the pump. The CVT transmits power from the power source to the pump. The CVT comprises a plurality of planetary members in rolling contact with an inner race and an outer race. A radial distance between the planetary members and a drive-transmitting member corresponds to a transmission ratio of the CVT. A system has a pump with a power input, a power source and a continuously variable transmission (CVT) coupled to the power source and to the power input of the pump. The CVT transmits power from the power source to the pump. The CVT comprises a plurality of planetary members in ...more ...less
4
EP2389527B1
Publication/Patent Number: EP2389527B1
Publication date: 2018-08-08
Application number: 10733805.5
Filing date: 2010-01-20
5
US10006526B2
Publication/Patent Number: US10006526B2
Publication date: 2018-06-26
Application number: 15/256,175
Filing date: 2016-09-02
Abstract: A system has a pump with a power input, a power source and a continuously variable transmission (CVT) coupled to the power source and to the power input of the pump. The CVT transmits power from the power source to the pump. The CVT comprises a plurality of planetary members in rolling contact with an inner race and an outer race. A radial distance between the planetary members and a drive-transmitting member corresponds to a transmission ratio of the CVT. A system has a pump with a power input, a power source and a continuously variable transmission (CVT) coupled to the power source and to the power input of the pump. The CVT transmits power from the power source to the pump. The CVT comprises a plurality of planetary members in ...more ...less
6
US9556678B2
Publication/Patent Number: US9556678B2
Publication date: 2017-01-31
Application number: 13/837,665
Filing date: 2013-03-15
Abstract: A drilling system for directional drilling of a borehole includes a biasing mechanism having a pivot associated with a lower bearing assembly, an offset mechanism associated with an upper radial bearing assembly, and a toolface controller, whereby the angular relationship of a drill bit and its toolface angle may be actively managed. A drilling system for directional drilling of a borehole includes a biasing mechanism having a pivot associated with a lower bearing assembly, an offset mechanism associated with an upper radial bearing assembly, and a toolface controller, whereby the angular relationship of a ...more ...less
7
US20170089142A1
Publication/Patent Number: US20170089142A1
Publication date: 2017-03-30
Application number: 15/376,887
Filing date: 2016-12-13
Abstract: A method for directionally drilling a portion of a borehole, comprising utilizing a drilling system associated with a drill string and a drill bit; rotating the drill string and placing an axial load on the drill string causing the drill string to move into compression; and stopping rotation of the drill string and with the drill string in compression, drilling a portion of the portion of the borehole while actively managing a toolface angle of the drill bit. A method for directionally drilling a portion of a borehole, comprising utilizing a drilling system associated with a drill string and a drill bit; rotating the drill string and placing an axial load on the drill string causing the drill string to move into compression; and ...more ...less
8
EP2197723B1
Publication/Patent Number: EP2197723B1
Publication date: 2016-12-28
Application number: 08788549.7
Filing date: 2008-09-05
9
US9464701B2
Publication/Patent Number: US9464701B2
Publication date: 2016-10-11
Application number: 13/145,863
Filing date: 2010-01-20
Abstract: A system has a pump with a power input, a power source and a continuously variable transmission (CVT) coupled to the power source and to the power input of the pump. The CVT transmits power from the power source to the pump. The CVT comprises a plurality of planetary members in rolling contact with an inner race and an outer race. A radial distance between the planetary members and a drive-transmitting member corresponds to a transmission ratio of the CVT. A system has a pump with a power input, a power source and a continuously variable transmission (CVT) coupled to the power source and to the power input of the pump. The CVT transmits power from the power source to the pump. The CVT comprises a plurality of planetary members in ...more ...less
10
EP2389527A4
Publication/Patent Number: EP2389527A4
Publication date: 2016-09-28
Application number: 10733805
Filing date: 2010-01-20
11
US20160369875A1
Publication/Patent Number: US20160369875A1
Publication date: 2016-12-22
Application number: 15/256,175
Filing date: 2016-09-02
Abstract: A system has a pump with a power input, a power source and a continuously variable transmission (CVT) coupled to the power source and to the power input of the pump. The CVT transmits power from the power source to the pump. The CVT comprises a plurality of planetary members in rolling contact with an inner race and an outer race. A radial distance between the planetary members and a drive-transmitting member corresponds to a transmission ratio of the CVT. A system has a pump with a power input, a power source and a continuously variable transmission (CVT) coupled to the power source and to the power input of the pump. The CVT transmits power from the power source to the pump. The CVT comprises a plurality of planetary members in ...more ...less
12
CA2698708C
Publication/Patent Number: CA2698708C
Publication date: 2015-11-17
Application number: 2698708
Filing date: 2008-09-05
Abstract: A power split device and method is disclosed. The variable ratio power split device
13
EP2855825A2
Publication/Patent Number: EP2855825A2
Publication date: 2015-04-08
Application number: 13714137.0
Filing date: 2013-03-15
14
CA2726969C
Publication/Patent Number: CA2726969C
Publication date: 2014-01-14
Application number: 2726969
Filing date: 2004-04-26
Inventor: Schaaf, Stuart  
Abstract: Systems and methods for drilling a borehole are provided. One system includes a continuously variable transmission. An input shaft of the continuously variable transmission is coupled to a power supply. An output shaft of the continuously variable transmission is coupled to one or more system components such that the continuously variable transmission controls rotation of the one or more system components. One method for drilling a borehole includes supplying power to an input shaft of a continuously variable transmission. The method also includes controlling rotation of one or more system components using the continuously variable transmission during drilling of the borehole. The one or more system components are coupled to an output shaft of the continuously variable transmission. Also provided is a borehole that is drilled by this method. Systems and methods for drilling a borehole are provided. One system includes a continuously variable transmission. An input shaft of the continuously variable transmission is coupled to a power supply. An output shaft of the continuously variable transmission is coupled to one ...more ...less
15
EP2558748A4
Publication/Patent Number: EP2558748A4
Publication date: 2014-04-23
Application number: 11769220
Filing date: 2011-04-14
16
US8639423B2
Publication/Patent Number: US8639423B2
Publication date: 2014-01-28
Application number: 12/718,849
Filing date: 2010-03-05
Abstract: A variable power split device having radially inner and outer races, each comprising at least two axially spaced parts. A plurality of planetary members are arranged for rolling contact between the races and a planet follower carrier engages the planetary members. A first rotatable power element spindle connects with the planet follower to couple power between the planet follower carrier and a first power element. A second rotatable power element spindle connects with the inner race to couple power between the inner race and a second power element. A third rotatable power element spindle connects with the outer race to couple power between the outer race and a third power element. Means for adjusting axial separation adjust separation of the axially spaced parts of at least one of the races to vary a power split ratio between the first, second and third rotatable power element spindles. A variable power split device having radially inner and outer races, each comprising at least two axially spaced parts. A plurality of planetary members are arranged for rolling contact between the races and a planet follower carrier engages the planetary members. A first ...more ...less