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公开(公告)号：US09939551B2
公开(公告)日：2018-04-10
申请号：US13966111
申请日：2013-08-13
Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
Inventor： Benjamin Levitt , Martin E. Poitzsch , Bradley Albert Roscoe
Abstract: A gravimeter, a gravimeter system, and a method for measuring gravitational acceleration within a borehole are described herein. The gravimeter includes a proof mass that is constrained by springs and an optical interferometer for measuring displacement of the proof mass. The optical interferometer generates a light path from a light source to a reflective surface on the proof mass. Spatial displacement of the proof mass from a reference position to a position of gravitational equilibrium is determined by measuring a change in length of the light path. In turn, gravitational acceleration can be determined from the spatial displacement of the proof mass. A number of such gravimeters can be used in a gravimeter system to make measurements of gravitational acceleration in variety of different directions.
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公开(公告)号：US09035237B2
公开(公告)日：2015-05-19
申请号：US13720975
申请日：2012-12-19
Applicant: Schlumberger Technology Corporation
Inventor： Martin G. Luling , Benjamin Levitt , Martin Poitzsch , Tancredi Botto
Abstract: Systems and methods are provided for determining a property, e.g., density, of a geological formation based on Einstein's theory of gravitation. A gravitational potential difference is determined between two positions of the geological formation by measuring a frequency shift of radiation travelling from a source to an absorber of a differential gravimeter. The differential gravimeter can be a part of a downhole tool. The gravitational potential difference determined can be used to determine the property of the geological formation.
Abstract translation: 提供了基于爱因斯坦引力理论确定地质构造的性质，例如密度的系统和方法。 通过测量从源到差压重力仪的吸收器的辐射的频移，确定地质构造的两个位置之间的重力势差。 差速重力计可以是井下工具的一部分。 确定的重力电位差可用于确定地质构造的性质。
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公开(公告)号：US20130161503A1
公开(公告)日：2013-06-27
申请号：US13720975
申请日：2012-12-19
Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
Inventor： Martin G. Luling , Benjamin Levitt , Martin Poitzsch , Tancredi Botto
IPC: G01V5/12
Abstract: Systems and methods are provided for determining a property, e.g., density, of a geological formation based on Einstein's theory of gravitation. A gravitational potential difference is determined between two positions of the geological formation by measuring a frequency shift of radiation travelling from a source to an absorber of a differential gravimeter. The differential gravimeter can be a part of a downhole tool. The gravitational potential difference determined can be used to determine the property of the geological formation.
Abstract translation: 提供了基于爱因斯坦引力理论确定地质构造的性质，例如密度的系统和方法。 通过测量从源到差压重力仪的吸收器的辐射的频移，确定地质构造的两个位置之间的重力势差。 差速重力计可以是井下工具的一部分。 确定的重力电位差可用于确定地质构造的性质。
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公开(公告)号：US09184019B2
公开(公告)日：2015-11-10
申请号：US13830437
申请日：2013-03-14
Applicant: Schlumberger Technology Corporation
Inventor： Luke Perkins , Benjamin Levitt , Peter Wraight , Arthur D. Liberman
IPC: H01J27/02
CPC classification number: H01J27/024
Abstract: An ion source for use in a radiation generator includes an active cathode configured to emit electrons on a trajectory away from the active cathode, at least some of the electrons as they travel interacting with an ionizable gas to produce ions. In addition, there is at least one extractor downstream of the active cathode having a potential such that the ions are attracted toward the at least one extractor.
Abstract translation: 用于辐射发生器的离子源包括被配置为在远离有源阴极的轨迹上发射电子的活性阴极，当它们与可电离气体相互作用以产生离子时，至少一些电子。 此外，在活性阴极的下游存在至少一个提取器，其具有使得离子被吸引到至少一个提取器的电位。
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公开(公告)号：US10522315B2
公开(公告)日：2019-12-31
申请号：US15698685
申请日：2017-09-08
Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
Inventor： Benjamin Levitt , Brian Munroe
Abstract: An ion generating device including a time-varying electromagnetic power source; and a multi-antenna ion source including a plurality of live antennas electrically coupled to the power source; and a grounded antenna. A neutron generator, including a time-varying electromagnetic power source; a hermetically-sealed tube; a multi-antenna ion source within tube, the multi-antenna ion source including a plurality of live antennas electrically coupled to the time-varying electromagnetic power source; and at most one grounded antenna; an extractor adjacent to an aperture of the multi-antenna ion source; at least one magnet generating a magnetic field substantially parallel to a longitudinal axis of the multi-antenna ion source; a target within the hermetically-sealed tube; and a plurality of electrodes for accelerating and/or decelerating ions toward the target, where the power source operates at a frequency corresponding to a cyclotron frequency defined by a value of the magnetic field within the multi-antenna ion source.
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Patent Agency Ranking
公开(公告)号：US09105436B2
公开(公告)日：2015-08-11
申请号：US13830469
申请日：2013-03-14
Applicant: Schlumberger Technology Corporation
Inventor： Luke Perkins , Benjamin Levitt , Peter Wraight , Arthur D. Liberman
CPC classification number: H01J27/024 , H01J27/205 , H05H6/00
Abstract: A method of generating ions in a radiation generator includes emitting electrons from an active cathode and on a trajectory away from the active cathode, at least some of the electrons as they travel interacting with an ionizable gas to produce ions. The method also includes setting a potential of at least one extractor downstream of the active cathode such that the ions are attracted toward the at least one extractor.
Abstract translation: 在辐射发生器中产生离子的方法包括从活性阴极和远离有源阴极的轨迹发射电子，至少一些电子在它们与可电离气体相互作用以产生离子时。 该方法还包括将活性阴极下游的至少一个提取器的电位设置为使得离子被吸引到至少一个提取器。
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公开(公告)号：US20140263998A1
公开(公告)日：2014-09-18
申请号：US13830469
申请日：2013-03-14
Applicant: Schlumberger Technology Corporation
Inventor： Luke Perkins , Benjamin Levitt , Peter Wraight , Arthur D. Liberman
CPC classification number: H01J27/024 , H01J27/205 , H05H6/00
Abstract: A method of generating ions in a radiation generator includes emitting electrons from an active cathode and on a trajectory away from the active cathode, at least some of the electrons as they travel interacting with an ionizable gas to produce ions. The method also includes setting a potential of at least one extractor downstream of the active cathode such that the ions are attracted toward the at least one extractor.
Abstract translation: 在辐射发生器中产生离子的方法包括从活性阴极和远离有源阴极的轨迹发射电子，至少一些电子在它们与可电离气体相互作用以产生离子时。 该方法还包括将活性阴极下游的至少一个提取器的电位设置为使得离子被吸引到至少一个提取器。
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公开(公告)号：US20140263993A1
公开(公告)日：2014-09-18
申请号：US13830401
申请日：2013-03-14
Applicant: Schlumberger Technology Corporation
Inventor： Luke Perkins , Benjamin Levitt , Peter Wraight , Arthur D. Liberman
CPC classification number: H01J27/205 , G21G4/02 , H01J27/02 , H01J27/08 , H01J27/16
Abstract: An ion source for use in a radiation generator includes a sealed envelope containing an ionizable gas therein. The ion source also includes a RF antenna external to the sealed envelope, the RF antenna to transmit time-varying electromagnetic fields within the sealed envelope for producing ions from the ionizable gas. There is at least one extractor within the sealed envelope having a potential such that the ions are attracted toward the at least one extractor.
Abstract translation: 用于辐射发生器的离子源包括其中含有可电离气体的密封外壳。 离子源还包括在密封外壳外部的RF天线，RF天线用于传输密封外壳内的时变电磁场，用于从可电离气体产生离子。 密封外壳内有至少一个提取器具有使得离子被吸引到至少一个提取器的电位。
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公开(公告)号：US11810763B2
公开(公告)日：2023-11-07
申请号：US17148238
申请日：2021-01-13
Applicant: Schlumberger Technology Corporation
Inventor： Benjamin Levitt , Brian Munroe
IPC: H01J37/32
CPC classification number: H01J37/3222 , H01J2237/047
Abstract: Embodiments presented provide for a distributed ground single antenna ion source used in scientific experimentation.
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公开(公告)号：US20220223376A1
公开(公告)日：2022-07-14
申请号：US17148238
申请日：2021-01-13
Applicant: Schlumberger Technology Corporation
Inventor： Benjamin Levitt , Brian Munroe
IPC: H01J37/32
Abstract: Embodiments presented provide for a distributed ground single antenna ion source used in scientific experimentation
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