公开(公告)号：US20090057545A1

公开(公告)日：2009-03-05

申请号：US11848473

申请日：2007-08-31

Applicant: Richard Saenger ,  Bradley A. Roscoe ,  Zilu Zhou ,  Christian Stoller

Inventor： Richard Saenger ,  Bradley A. Roscoe ,  Zilu Zhou ,  Christian Stoller

IPC: G01V5/10

CPC classification number: G01T3/08 ,  G01V5/04

Abstract: A nuclear tool includes a tool housing; a neutron generator disposed in the tool housing; and a solid-state neutron monitor disposed proximate the neutron generator for monitoring the output of the neutron generator. A method for constructing a nuclear tool includes disposing a neutron generator in a tool housing; and disposing a solid-state neutron monitor proximate the neutron generator for monitoring the output of the neutron generator. A method for logging a formation includes disposing a nuclear tool in a wellbore penetrating the formation, wherein the nuclear tool comprises a neutron generator and a solid-state neutron monitor disposed proximate the neutron generator; generating neutrons from the neutron generator; monitoring neutrons generated by the neutron generator using the solid-state neutron monitor; detecting signals generated from the neutrons traveling in the formation; and correcting the detected signals, based on signal strength detected by the solid-state neutron monitor, to produce corrected signals.

Abstract translation: 核工具包括工具外壳; 设置在工具壳体中的中子发生器; 以及靠近中子发生器设置的用于监测中子发生器的输出的固态中子监视器。 一种用于构造核工具的方法包括将中子发生器设置在工具壳体中; 并在中子发生器附近设置一个固态中子监测器，用于监测中子发生器的输出。 记录地层的方法包括将核工具放置在穿透地层的井眼中，其中所述核工具包括中子发生器和靠近中子发生器设置的固态中子监测器; 从中子发生器产生中子; 使用固态中子监测器监测由中子发生器产生的中子; 检测从地层中行进的中子产生的信号; 并且基于由固态中子监视器检测的信号强度来校正检测信号，以产生校正信号。

公开(公告)号：US07432499B2

公开(公告)日：2008-10-07

申请号：US10547961

申请日：2004-03-03

Applicant: John Edwards ,  Christian Stoller ,  Peter Wraight ,  Roger Griffiths ,  Nicolas Renoux

Inventor： John Edwards ,  Christian Stoller ,  Peter Wraight ,  Roger Griffiths ,  Nicolas Renoux

IPC: G01V5/04 ,  G01V5/06

CPC classification number: E21B47/1015 ,  E21B2021/006

Abstract: The invention relates to methods and apparatus for determining a downhole parameter in an underbalanced drilling environment which include: selectively activating a first fluid flowing from the formation through a wellbore while under balanced drilled; detecting the activated first fluid; and determining a depth at which said fluid enters the wellbore.

Abstract translation: 本发明涉及用于确定欠平衡钻井环境中的井下参数的方法和装置，其包括：在平衡钻探的同时，选择性地激活从地层流过井眼的第一流体; 检测活化的第一流体; 以及确定所述流体进入所述井筒的深度。

公开(公告)号：US07339161B2

公开(公告)日：2008-03-04

申请号：US10906562

申请日：2005-02-24

Applicant: Richard J. Radtke ,  Arlene O. Siefker-Radtke ,  Christian Stoller

Inventor： Richard J. Radtke ,  Arlene O. Siefker-Radtke ,  Christian Stoller

IPC: G01V5/04

CPC classification number: G01V5/101 ,  G01V5/107 ,  G01V5/125

Abstract: Apparatus and method for detecting subsurface radiation phenomena. An elongated support member, adapted for disposal within a wellbore traversing a subsurface formation, includes a recess along its longitudinal axis. A pad is linked to the support member. The pad is configured with a surface correspondingly shaped to fit in juxtaposition with the support member recess. The pad is adapted for movement into and out of the recess such that an exposed surface of the pad can extend away from the support member. The pad also includes one or more radiation detectors and is adapted with shielding material on its sides near the exposed surface to prevent radiation reflected from the recess from reaching the detector(s) from the area near the exposed surface.

Abstract translation: 用于检测地下辐射现象的装置和方法。 适于在穿过地下地层的井筒内处理的细长支撑构件包括沿其纵向轴线的凹部。 衬垫连接到支撑构件。 衬垫被构造成具有相应形状的表面以与支撑构件凹部并置。 衬垫适于移动进入和离开凹部，使得垫的暴露表面可以远离支撑构件延伸。 衬垫还包括一个或多个辐射检测器，并且在其暴露表面附近的侧面上适配屏蔽材料，以防止从凹部反射的辐射从暴露表面附近的区域到达检测器。

公开(公告)号：US07285772B2

公开(公告)日：2007-10-23

申请号：US11127570

申请日：2005-05-12

Applicant: Laurent Labous ,  Christian Stoller

Inventor： Laurent Labous ,  Christian Stoller

IPC: G01V5/12

CPC classification number: G01V5/125 ,  G01V5/107

Abstract: It is described a logging tool 20 for underground formations surrounding a borehole 14, comprising an elongated body 21 along a major axis; a collar 22 disposed peripherally around said body 21 having a collar wall defined by an inner and an outer surface; a radiation emitting source 201 arranged to illuminate the earth formation 16 surrounding the borehole; at least one radiation detector 211 arranged to detect radiation reflected by the earth formation resulting from illumination by the source 201; at least one source collimation—window 202 and one detector collimation window 212 through which the earth formation is illuminated and radiation is detected; and characterized in that it further comprises at least one radiation shield 30 located between said inner collar surface and the outer surface of the tool, said radiation shield positioned so as to eliminate parasitic radiation that has not traversed the outer collar.

Abstract translation: 描述了用于围绕钻孔14的地下地层的测井工具20，其包括沿着长轴的细长主体21; 围绕所述主体21设置的具有由内表面和外表面限定的轴环壁的轴环22; 布置成照射围绕钻孔的地层16的辐射发射源201; 至少一个放射线检测器211被布置成检测由源201照明产生的地球物体反射的辐射; 至少一个源准直窗202和一个检测器准直窗212，地层被照射并通过其检测辐射; 并且其特征在于，它还包括位于所述内套环表面和所述工具的外表面之间的至少一个辐射屏蔽件30，所述辐射屏蔽件被定位成消除未穿过所述外套环的寄生辐射。

公开(公告)号：US20070138399A1

公开(公告)日：2007-06-21

申请号：US11312841

申请日：2005-12-20

Applicant: John Simonetti ,  Joel Groves ,  Wolfgang Ziegler ,  Arthur Liberman ,  Christian Stoller

Inventor： John Simonetti ,  Joel Groves ,  Wolfgang Ziegler ,  Arthur Liberman ,  Christian Stoller

IPC: G01T1/20

CPC classification number: G01T1/28 ,  G01T1/20

Abstract: A radiation detector operating at high temperatures is shown comprising a scintillating material for producing light when excited by incident radiation, a photocathode, and an electron multiplier. The photocathode is deposited directly onto the surface of the scintillating material that is oriented toward the electron multiplier. Depositing the photocathode directly on the surface greatly decreases photon loss which is a problem of prior art systems. In a preferred embodiment, a metal flange is hermetically sealed to the scintillating material and this is fusion welded to the electron multiplier to create a vacuum envelope. This invention is particularly useful in noisy environments such as downhole in a drilling operatio

Abstract translation: 示出了在高温下工作的放射线检测器，其包括用于在被入射辐射激发时产生光的闪烁材料，光电阴极和电子倍增器。 光电阴极直接沉积在朝向电子倍增器的闪烁材料的表面上。 将光电阴极直接沉积在表面上大大降低了光子损失，这是现有技术系统的问题。 在优选实施例中，金属凸缘与闪烁材料气密密封，并且将其熔接到电子倍增器以产生真空外壳。 本发明在诸如钻井作业中的井下的噪声环境中特别有用

公开(公告)号：US07073378B2

公开(公告)日：2006-07-11

申请号：US10636297

申请日：2003-08-07

Applicant: Jan Wouter Smits ,  Christian Stoller ,  Michael Evans ,  Patrick Fisseler ,  Robert Adolph

Inventor： Jan Wouter Smits ,  Christian Stoller ,  Michael Evans ,  Patrick Fisseler ,  Robert Adolph

IPC: G01N23/00

CPC classification number: G01V5/12 ,  G01V5/10

Abstract: An apparatus for measuring characteristics of earth formations surrounding a borehole, comprises a resistivity measurement device having a multiplicity of antennae spaced between each other in a longitudinal direction of the apparatus. A neutron measurement device of the apparatus comprises at least a neutron source and at least a neutron detector, each of the neutron detectors being at a distance from the neutron source in the longitudinal direction of the apparatus. The multiplicity of antennae are interleaved with the neutron measurement device in order to reduce a total length of the apparatus and in order to allow a determined area of the earth formation to be measured simultaneously using the neutron measurement device and the resistivity measurement device.

Abstract translation: 一种用于测量围绕钻孔的地层的特性的装置，包括电阻率测量装置，其具有在装置的纵向方向上彼此间隔开的多个天线。 该装置的中子测量装置至少包括一个中子源和至少一个中子探测器，每个中子探测器与设备纵向方向上的中子源距离一定。 天线的多重性与中子测量装置交错以减少装置的总长度，并且为了允许使用中子测量装置和电阻率测量装置同时测量地层的确定区域。

公开(公告)号：US20050097911A1

公开(公告)日：2005-05-12

申请号：US10710103

申请日：2004-06-18

Applicant: Guillaume Revellat ,  Christian Stoller ,  Robert Adolph ,  Larry Bernard ,  Feng Zhou ,  Stephen Bonner ,  Jean-Michel Hache ,  Ruvinda Gunawardana

Inventor： Guillaume Revellat ,  Christian Stoller ,  Robert Adolph ,  Larry Bernard ,  Feng Zhou ,  Stephen Bonner ,  Jean-Michel Hache ,  Ruvinda Gunawardana

IPC: E21B47/00 ,  F25B9/14 ,  F25B9/00 ,  E21B29/02 ,  E21B43/00 ,  F25D23/12

CPC classification number: F25B9/14 ,  E21B47/011

Abstract: A cooling system for a downhole tool includes an insulating chamber disposed in the tool, wherein the chamber is adapted to house an object to be cooled; a Stirling cooler is disposed in the tool, the cooler has a cold end configured to remove heat from the chamber and a hot end configured to dissipate heat; and an energy source to power the Stirling cooler. A downhole tool includes: a tool body, and a cooling system with an insulating chamber; wherein the chamber is adapted to house an object to be cooled; a Stirling cooler is disposed in the tool, the cooler has a cold end configured to remove heat from the chamber and a hot end configured to dissipate heat; and an energy source to power the Stirling cooler.

Abstract translation: 用于井下工具的冷却系统包括设置在工具中的绝热室，其中所述室适于容纳要冷却的物体; 斯特林冷却器设置在工具中，冷却器具有构造成从腔室移除热量的冷端和被配置为消散热量的热端; 以及为斯特林冷却器供电的能源。 井下工具包括：工具主体和具有绝缘室的冷却系统; 其中所述室适于容纳要冷却的物体; 斯特林冷却器设置在工具中，冷却器具有构造成从腔室移除热量的冷端和被配置为消散热量的热端; 以及为斯特林冷却器供电的能源。

公开(公告)号：US5912460A

公开(公告)日：1999-06-15

申请号：US812801

申请日：1997-03-06

Applicant: Christian Stoller ,  Urmi DasGupta ,  Olivier G. Philip ,  Nihal I. Wijeyesekera ,  Peter D. Wraight

Inventor： Christian Stoller ,  Urmi DasGupta ,  Olivier G. Philip ,  Nihal I. Wijeyesekera ,  Peter D. Wraight

IPC: G01V5/12 ,  G01V5/00

CPC classification number: G01V5/125

Abstract: An advanced method for determining formation density in an array-detector density tool uses three or more detectors to yield an improved accuracy and precision of the formation density measurement even in the presence of a large standoff between the tool and the formation. A more accurate photoelectric factor is determined through a new single detector algorithm. Use of the information on the photoelectric effect and the density from the three detectors allows the measurement of a photoelectric effect compensated for stand off and the photoelectric factor of the mudcake. The use of the multi-detector density answers allows for a consistency check and therefore a much improved quality control of the density measurement.

Abstract translation: 用于确定阵列检测器密度工具中的地层密度的先进方法使用三个或更多个检测器，即使在工具和地层之间存在大的间隙的情况下，也可以提高地层密度测量的精度和精度。 通过新的单个检测器算法确定更准确的光电因子。 使用关于光电效应的信息和来自三个检测器的密度，可以测量补偿的光电效应和泥饼的光电因数。 使用多检测器密度答案允许进行一致性检查，因此可以大大提高密度测量的质量控制。

公开(公告)号：US5369578A

公开(公告)日：1994-11-29

申请号：US64622

申请日：1993-05-20

Applicant: Bradley A. Roscoe ,  Christian Stoller

Inventor： Bradley A. Roscoe ,  Christian Stoller

IPC: G01V5/06 ,  G01V5/10 ,  G06F15/21

CPC classification number: G01V5/101 ,  G01V5/06

Abstract: A method and an apparatus for decomposing a gamma spectrum representative of an unknown material for determining the contribution of each constituent postulated to constitute the material, wherein an energy spectrum of the gamma rays issued from the material is formed, as well as a composite spectrum made up of individual standard spectra of the postulated constituents and comprising elemental yields being representative of the proportion of the corresponding constituents; the best fit between the measured spectrum and the composite spectrum is determined by modifying simultaneously at least one elemental yield and at least one parameter representative of the conditions under which the measured spectrum and the composite spectrum have been obtained. The best fit may be based on any non linear least squares search for a global minimum of X.sup.2 =(S Y-U).sup.T W(S Y-U), where "U" is a matrix representing the measured spectrum, "S" is a matrix representing the composite spectrum, "Y" is a matrix representative of the elemental yields and "W" is a weight matrix. The non linear fitting method used may be e.g. a gradient search or the Marquardt method.

Abstract translation: 一种用于分解表示未知材料的伽马光谱的方法和装置，用于确定假定构成材料的每个组成部分的贡献，其中形成从材料发出的伽马射线的能谱以及形成的复合光谱 假定的成分的单个标准光谱的单位，并且包括代表相应成分的比例的元素产率; 测量光谱和复合光谱之间的最佳拟合通过同时修改至少一个元素产量和至少一个代表所获得的测量光谱和复合光谱条件的参数来确定。 最佳拟合可以基于任何非线性最小二乘搜索全局最小值X2 =（S YU）TW（S YU），其中“U”是表示测量光谱的矩阵，“S”是表示 复合光谱，“Y”是表示元素产量的矩阵，“W”是权重矩阵。 所使用的非线性拟合方法可以是例如。 梯度搜索或Marquardt方法。

公开(公告)号：US5105080A

公开(公告)日：1992-04-14

申请号：US679468

申请日：1991-04-02

Applicant: Christian Stoller ,  Robert A. Adolph

Inventor： Christian Stoller ,  Robert A. Adolph

IPC: G01V5/10

CPC classification number: G01V5/104 ,  G01V5/101

Abstract: A apparatus and an apparatus for determining the respective contributions in spectroscopy measurements of the borehole and the earth formations surrounding the borehole, derived from the detection of gamma rays resulting from the collisions of neutrons with atoms of the formation or the borehole. From gamma rays from a near and far detector, and established, at each depth, responses (e.g. elemental yields) representative of the values of an unknown in the borehole and in the formation. The far detector response is plotted against the near detector response. From the plot and from known conditions of the detection, is derived a closed curve characteristic of the relative contributions of the borehole and the formation in the responses. For each depth, the respective values of the unknown are derived from the position on the plot of the couple of responses for that depth, with respect to the closed curve. For instance, on a plot of C/(C+O) yields, the curve is a parallelogram two concurrent sides of which form a coordinate system; the coordinates of each response corresponds to the values of the unknown respectively for the formation and the borehole.

Abstract translation: 一种装置和装置，用于确定由探测由中子与地层原子或井眼碰撞而产生的伽马射线的钻孔周围的钻孔和地层的光谱测量中的各自贡献。 来自近距离和远距离探测器的伽马射线，并且在每个深度处确定代表井眼和地层中未知物的值的响应（例如元素产量）。 远检测器响应相对于近检测器响应绘制。 从图的情况和已知的检测条件，得出了井眼的相对贡献和响应中的形成的闭合曲线特征。 对于每个深度，未知的相应值来自相对于闭合曲线的该深度的响应对的图上的位置。 例如，在C /（C + O）产量的曲线上，曲线是平行四边形，两个并列的边形成一个坐标系; 每个响应的坐标分别对应于地层和钻孔的未知值。