公开(公告)号：US10062467B2

公开(公告)日：2018-08-28

申请号：US15373630

申请日：2016-12-09

Applicant: Schlumberger Technology Corporation

Inventor： Avtandil Tkabladze ,  Justin Dale Mlcak ,  Sicco Beekman ,  Matthieu Simon

IPC: G01V5/12 ,  G21K1/10 ,  G01N23/223 ,  G01V5/08 ,  H01J35/00

CPC classification number: G21K1/10 ,  G01N23/223 ,  G01N2223/20 ,  G01N2223/616 ,  G01V5/08 ,  G01V5/12 ,  H01J35/00 ,  H05G1/02

Abstract: The techniques and device provided herein relate to regulating a source generator in an X-ray based equipment. In particular, an X-ray system is provided that comprises an X-ray generator and a reference detector system that regulates the output of the X-ray generator. The reference detector system comprises a direct channel that allows at least a portion of the photons to directly reach the detector crystal and a plurality of fluorescent channels, such that photon flux entering the reference detector from the fluorescent channels is negligibly impacted by variations of beam spots, shapes and/or positions.

公开(公告)号：US09091777B2

公开(公告)日：2015-07-28

申请号：US14295374

申请日：2014-06-04

Applicant: Schlumberger Technology Corporation

Inventor： Matthieu Simon

IPC: H01J35/02 ,  G01V13/00 ,  G01V5/12 ,  H01J35/14

CPC classification number: G01V5/12 ,  G01V13/00 ,  H01J35/14 ,  H05G1/10 ,  Y10T29/49002

Abstract: A well-logging tool may include a sonde housing and a radiation generator carried by the sonde housing. The radiation generator may include a target carried by the generator housing, a charged particle source carried by the generator housing to direct charged particles at the target, and at least one voltage source coupled to the charged particle source. The at least one voltage source may include a voltage ladder comprising a plurality of voltage multiplication stages coupled to the charged particle source, and an input voltage modulator coupled to the voltage ladder and supplying an amplitude modulated signal thereto. The well-logging tool may further include at least one radiation detector carried by the sonde housing.

Abstract translation: 测井工具可以包括探空仪外壳和由探空仪外壳承载的辐射发生器。 辐射发生器可以包括由发生器壳体承载的靶，由发生器壳体承载的带电粒子源以在靶处引导带电粒子，以及耦合到带电粒子源的至少一个电压源。 所述至少一个电压源可以包括电压梯，所述电压梯包括耦合到所述带电粒子源的多个电压倍增级，以及耦合到所述电压梯并且向其施加幅度调制信号的输入电压调制器。 测井工具还可以包括由探空仪壳体承载的至少一个辐射探测器。

公开(公告)号：US20150179390A1

公开(公告)日：2015-06-25

申请号：US14574309

申请日：2014-12-17

Applicant: Schlumberger Technology Corporation

Inventor： Matthieu Simon ,  Kenneth E. Stephenson

IPC: H01J35/14 ,  H01J35/06

CPC classification number: H01J35/14 ,  H05G1/265 ,  H05G1/30 ,  H05H3/06

Abstract: A radiation generator is provided that includes a target, a cathode to emit electrons in a downstream direction toward the target, a first conductive member downstream of the cathode, and a second conductive member downstream of the cathode. The first and second conductive members have a potential difference with the cathode such that a resultant electric field accelerates the electrons toward the target. A diagnostic current in the second conductive member and a target current in the target may be measured, and an electrical property of the first conductive member may be adjusted based upon the diagnostic current and the target current.

Abstract translation: 提供了一种辐射发生器，其包括靶，在朝向靶的下游方向发射电子的阴极，阴极下游的第一导电构件和阴极下游的第二导电构件。 第一和第二导电构件与阴极具有电位差，使得所得的电场将电子加速朝向目标。 可以测量第二导电构件中的诊断电流和靶中的目标电流，并且可以基于诊断电流和目标电流来调整第一导电构件的电特性。

公开(公告)号：US20140251690A1

公开(公告)日：2014-09-11

申请号：US14281945

申请日：2014-05-20

Applicant: Schlumberger Technology Corporation

Inventor： Matthieu Simon ,  Peter Wraight ,  Christian Stoller ,  Kenneth E. Stephenson ,  Andrew Bazarko

IPC: E21B47/00

CPC classification number: G01V5/125 ,  E21B17/16 ,  E21B47/00 ,  E21B49/00 ,  G01N23/083 ,  G01V5/04 ,  G01V5/12

Abstract: Logging-while-drilling tools incorporating an electronic radiation generator, such as an electronic X-ray generator, and a method for using the same are provided. One example of such a logging-while-drilling tool may include a circumferential drill collar, a chassis disposed radially interior to the drill collar, and an electronic X-ray generator and an X-ray detector disposed within the chassis. The electronic X-ray generator may emit X-rays out of the logging-while-drilling tool into a subterranean formation. The X-ray detector may detect X-rays that return to the logging-while-drilling tool after scattering in the subterranean formation, which may be used to determine a density and/or a lithology of the subterranean formation.

Abstract translation: 提供了包括诸如电子X射线发生器的电子辐射发生器的同时钻孔工具及其使用方法。 这种钻井测井工具的一个例子可以包括圆周钻铤，径向设置在钻铤内部的底盘，以及设置在底盘内的电子X射线发生器和X射线探测器。 电子X射线发生器可以将X射线从测井钻井工具中排出到地层中。 X射线检测器可以检测在地下地层散射之后返回到钻井测井工具的X射线，其可以用于确定地下岩层的密度和/或岩性。