-
公开(公告)号：AU5751401A
公开(公告)日：2001-11-20
申请号：AU5751401
申请日：2001-05-03
Applicant: BAKER HUGHES INC
Inventor： BESSER GORDON L , KNOX DICK LEE , RIDER JERALD R , TOOMEY DAN D
Abstract: A three phase power cable is employed to transmit data encoded in a phase-to-phase manner within a high frequency carrier signal transmitted simultaneously with power transmitted from surface equipment to downhole components. The high frequency carrier signal is transmitted on all conductors of the power cable, with the signal carried on at least two phases or conductors modulated between the two conductors to encode data between the two phases. Any modulation technique may be employed. Multiple phase-to-phase signals may be encoded and transmitted between different pairs of the power cable conductors, or the same data may be encoded and transmitted in multiple phase-to-phase signals in either a single-ended or differential manner. The high frequency carrier may be employed to transmit data from sensors downhole to the surface equipment, control signals from the surface equipment to the downhole components, or both.
-
Patent Agency Ranking
公开(公告)号：CA2356798A1
公开(公告)日：2002-03-07
申请号：CA2356798
申请日：2001-09-06
Applicant: BAKER HUGHES INC
Inventor： KNOX DICK LEE
Abstract: A submersible pump motor has rotor sections spaced apart from each other wi th bearings located between. The bearings support the shaft of the rotor within a stator. The bearing is stationary and has a cavity in its outer periphery. A metallic coiled member is positioned along the circumference of the bearing, and rests in the cavit y on the outside diameter of the bearing. The coiled member engages the bearing and the inner wall of the stator to prevent rotation of the bearing.
-
公开(公告)号：GB2290686B
公开(公告)日：1999-06-02
申请号：GB9512190
申请日：1995-06-15
Applicant: BAKER HUGHES INC
Inventor： BESSER GORDON LEE , DAVIS CECIL GLYNN , TICKELL JNR EDWARD BRYANT , KNOX DICK LEE , MARTIN JNR JOHN DEE
Abstract: The present invention impresses the data on the power signal by utilizing a saturable core reactor. The saturable core reactor uses two cores. Each core has both load windings and control windings. The control windings are selectively energized to alter an electrical characteristic of the current passing through the load windings. The saturable core reactor is designed with cores made of a highly magnetically permeable material so that the cores are easily saturated. The cyclical saturation of the cores achieved by the load current, and the selective saturation of the cores achieved by selectively applying a control current, results in "deformations" being selectively formed at the zero crossings of the load current waveform. These "deformations" can be selectively formed on the power signal to represent a binary data stream. Once the series of "deformations" is impressed onto the power signal, the "deformations" are communicated from one point on the power cable to another point on the power cable together with the power signal. The "deformations" are then read and transformed into a binary data stream. Thus, the power cable is converted from a mere power cable to a power cable capable of transmitting both power and data simultaneously.
-
公开(公告)号：CA2151646A1
公开(公告)日：1995-12-18
申请号：CA2151646
申请日：1995-06-13
Applicant: BAKER HUGHES INC
Inventor： BESSER GORDON LEE , DAVIS CECIL GLYNN , TICKELL EDWARD BRYANT JR , KNOX DICK LEE , MARTIN JOHN DEE JR
Abstract: The present invention impresses the data on the power signal by utilizing a saturable core reactor. The saturable core reactor uses two cores. Each core has both load windings and control windings. The control windings are selectively energized to alter an electrical characteristic of the current passing through the load windings. The saturable core reactor is designed with cores made of a highly magnetically permeable material so that the cores are easily saturated. The cyclical saturation of the cores achieved by the load current and the selective saturation of the cores achieved by selectively applying a control current results in "deformations" being selectively formed at the zero crossings of the load current waveform. These "deformations" can be selectively formed on the power signal to represent a binary data stream. Once the series of "deformations" is impressed onto the power signal the "deformations" are communicated from one point on the power cable to another point on the power cable together with the power signal. The "deformations" are then read and transformed into a binary data stream. Thus, the power cable is converted from a mere power cable to a power cable capable of transmitting both power and data simultaneously.
-
公开(公告)号：CA2408593A1
公开(公告)日：2001-11-15
申请号：CA2408593
申请日：2001-05-03
Applicant: BAKER HUGHES INC
Inventor： KNOX DICK LEE , BESSER GORDON L , TOOMEY DAN D , RIDER JERALD R
Abstract: A three phase power cable is employed to transmit data encoded in a phase-to-phase manner within a high frequency carrier signal transmitted simultaneously with power transmitted from surface equipment to downhole components. The high frequency carrier signal is transmitted on all conductors of the power cable, with the signal carried on at least two phases or conductors modulated between the two conductors to encode data between the two phases. Any modulation technique may be employed. Multiple phase-to-phase signals may be encoded and transmitted between different pairs of the power cable conductors, or the same data may be encoded and transmitted in multiple phase-to-phase signals in either a single-ended or differential manner. The high frequency carrier may be employed to transmit data from sensors downhole to the surface equipment, control signals from the surface equipment to the downhole components, or both.
-
公开(公告)号：GB2290686A
公开(公告)日：1996-01-03
申请号：GB9512190
申请日：1995-06-15
Applicant: BAKER HUGHES INC
Inventor： BESSER GORDON LEE , DAVIS CECIL GLYNN , TICKELL JNR EDWARD BRYANT , KNOX DICK LEE , MARTIN JNR JOHN DEE
Abstract: The present invention impresses the data on the power signal by utilizing a saturable core reactor. The saturable core reactor uses two cores. Each core has both load windings 23, 25 and control windings 27, 29. The control windings 27, 29 are selectively energized to alter an electrical characteristic of the current passing through the load windings. The saturable core reactor is designed with cores made of a highly magnetically permeable material 50 that the cores are easily saturated. The cyclical saturation of the cores achieved by the load current, and the selective saturation of the cores achieved by selectively applying a D.C. control current, results in "deformations" being selectively formed at the zero crossings of the load current waveform. These "deformations can be selectively formed on the power signal to represent a binary data stream. Once the series of "deformations" is impressed onto the power signal, the "deformations" are communicated from one point on the power cable to another point on the power cable together with the power signal. The "deformations" are then read and transformed into a binary data stream. Thus, the power cable is converted from a mere power cable to a power cable capable of transmitting both power and data simultaneously. The invention is useful for the transmission of data regarding temperature, pressure, pump operation in an oil or gas wellbore over a power cable to the surface. Construction of the core with the load and control windings thereon is also described (Figs. 5A, 5D not shown).
-
-
-
-
-
Search Results
6
records
(took 0.021 seconds)
