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1. 发明申请

WO2012050725A2 SOURCELESS DOWNHOLE X-RAY TOOL 审中-公开
标题翻译： SOURCELESS井下X射线工具
公开(公告)号：WO2012050725A2
公开(公告)日：2012-04-19
申请号：PCT/US2011/051669
申请日：2011-09-15
申请人： SCHLUMBERGER TECHNOLOGY CORPORATION , SERVICES PETROLIERS SCHLUMBERGER , SCHLUMBERGER HOLDINGS LIMITED , SCHLUMBERGER TECHNOLOGY B.V. , PRAD RESEARCH AND DEVELOPMENT LIMITED , SIMON, Matthieu , STEPHENSON, Kenneth
发明人： SIMON, Matthieu , STEPHENSON, Kenneth
IPC分类号： E21B49/08 , G01V5/12 , H01J35/00
CPC分类号： G01V5/125 , G01T1/40
摘要： Systems, methods, and devices relating to a sourceless X-ray downhole tool are provided. By way of example, such a downhole tool may include an X-ray generator, an X-ray detector, and data processing circuitry. The X-ray generator may emit some X-rays out of the downhole tool and some X-rays internally through the downhole tool. The X-ray detector may detect some of the X-rays that return to the downhole tool, as well as some of the X-rays that pass internally through the downhole tool. The data processing circuitry may gain-stabilize the X-ray detector based at least in part on the X-rays that passed internally through the downhole tool and were detected by the X-ray detector.
摘要翻译：提供了与无源X射线井下工具相关的系统，方法和设备。作为示例，这样的井下工具可以包括X射线发生器，X射线探测器和数据处理电路。 X射线发生器可以从井下工具发出一些X射线并且通过井下工具在内部发射一些X射线。 X射线探测器可以探测返回到井下工具的一些X射线以及通过井下工具内部通过的一些X射线。数据处理电路可以至少部分地基于内部通过井下工具并由X射线探测器检测到的X射线来增益稳定X射线探测器。

2. 发明申请

WO2012064797A2 NEUTRON-GAMMA DENSITY THROUGH NORMALIZED INELASTIC RATIO 审中-公开
标题翻译：通过正则化的INELASTIC比率的中子 - 伽玛密度
公开(公告)号：WO2012064797A2
公开(公告)日：2012-05-18
申请号：PCT/US2011/059858
申请日：2011-11-09
申请人： SCHLUMBERGER CANADA LIMITED , SERVICES PETROLIERS SCHLUMBERGER , SCHLUMBERGER HOLDINGS LIMITED , SCHLUMBERGER TECHNOLOGY B.V. , PRAD RESEARCH AND DEVELOPMENT LIMITED , TKABLADZE, Avto , EVANS, Michael , STEPHENSON, Kenneth
发明人： TKABLADZE, Avto , EVANS, Michael , STEPHENSON, Kenneth
IPC分类号： G01V5/14 , G21G4/02 , G01T3/00
CPC分类号： G01V5/108 , G01V5/104 , G01V5/105 , G01V5/107
摘要： Systems, methods, and devices for determining neutron-gamma density (NGD) measurement of a subterranean formation that is accurate in both liquid- and gas-filled formations are provided. For example, a downhole tool for obtaining such an NGD measurement may include a neutron generator, neutron detector, two gamma-ray detectors, and data processing circuitry. Neutron generator may emit neutrons into a formation, causing a fast neutron cloud to form. Neutron detector may detect a count of neutrons representing the extent of the neutron cloud. Gamma-ray detectors may detect counts of inelastic gamma-rays caused by neutrons that inelastically scatter off the formation. Since the extent of the fast neutron cloud may vary depending on whether the formation is liquid- or gas-filled, data processing circuitry may determine the density of the formation based at least in part on the counts of inelastic gamma-rays normalized to the count of neutrons.
摘要翻译：提供了用于确定在液体和气体填充地层中准确的地下地层的中子 - 伽马密度（NGD）测量的系统，方法和装置。例如，用于获得这样的NGD测量的井下工具可以包括中子发生器，中子探测器，两个γ射线检测器和数据处理电路。中子发生器可以将中子发射到地层中，形成快中子云。中子检测器可以检测代表中子云范围的中子数。伽马射线探测器可以检测由不规则地离开地层的中子引起的非弹性γ射线的计数。由于快中子云的程度可以根据地层是液态的还是气体填充而变化，数据处理电路可以至少部分地基于归一化到计数的非弹性γ射线的计数来确定地层的密度的中子。

3. 发明申请

WO2004059125A1 MEASURING MUD FLOW VELOCITY USING PULSED NEUTRONS 审中-公开
标题翻译：使用脉冲中子测量泥浆流速度
公开(公告)号：WO2004059125A1
公开(公告)日：2004-07-15
申请号：PCT/EP2003/013142
申请日：2003-11-21
申请人： SERVICES PETROLIERS SCHLUMBERGER , SCHLUMBERGER TECHNOLOGY B.V. , SCHLUMBERGER HOLDINGS LIMITED , SCHLUMBERGER CANADA LIMITED , PETROLEUM RESEARCH AND DEVELOPMENT N.V. , SCHLUMBERGER OVERSEAS S.A. , SCHLUMBERGER OILFIELD ASSISTANCE LIMITED , SCHLUMBERGER SURENCO S.A. , SCHLUMBERGER SERVICES LIMITED , SCHLUMBERGER SEACO INC. , WRAIGHT, Peter , GRIFFITHS, Roger , STEPHENSON, Kenneth
发明人： WRAIGHT, Peter , GRIFFITHS, Roger , STEPHENSON, Kenneth
IPC分类号： E21B47/00
CPC分类号： E21B47/1015 , E21B47/0003 , E21B47/082
摘要： The invention relates to methods and apparatus for determining downhole mud flow rates and other downhole parameters. A method for determining a downhole parameter includes operating a pulsed neutron generator (6), pulsing the pulsed neutron generator (6) off, detecting a substantially unactivated drilling fluid slug at a known distance (d) from the pulsed neutron generator (6), and determining a time-of-flight (t) for the unactivated drilling fluid slug to travel from the pulsed neutron generator (6) to a detection point.
摘要翻译：本发明涉及用于确定井下泥浆流量和其它井下参数的方法和装置。一种用于确定井下参数的方法包括操作脉冲中子发生器（6），使脉冲中子发生器（6）脉冲关闭，在与脉冲中子发生器（6）已知距离（d）处检测基本上未激活的钻井液段，以及确定未激活的钻井液段从脉冲中子发生器（6）行进到检测点的飞行时间（t）。

4. 发明公开

EP2649474A2 NEUTRON-GAMMA DENSITY THROUGH NORMALIZED INELASTIC RATIO 审中-公开
标题翻译：中华人民共和国爱尔兰正义主义者解放阵线VERHÄLTNIS
公开(公告)号：EP2649474A2
公开(公告)日：2013-10-16
申请号：EP11839181.2
申请日：2011-11-09
申请人： Services Pétroliers Schlumberger , Schlumberger Holdings Limited , Schlumberger Technology B.V. , PRAD Research and Development Limited
发明人： TKABLADZE, Avto , EVANS, Michael , STEPHENSON, Kenneth
IPC分类号： G01V5/14 , G21G4/02 , G01T3/00
CPC分类号： G01V5/108 , G01V5/104 , G01V5/105 , G01V5/107
摘要： Systems, methods, and devices for determining neutron-gamma density (NGD) measurement of a subterranean formation that is accurate in both liquid- and gas-filled formations are provided. For example, a downhole tool for obtaining such an NGD measurement may include a neutron generator, neutron detector, two gamma-ray detectors, and data processing circuitry. Neutron generator may emit neutrons into a formation, causing a fast neutron cloud to form. Neutron detector may detect a count of neutrons representing the extent of the neutron cloud. Gamma-ray detectors may detect counts of inelastic gamma-rays caused by neutrons that inelastically scatter off the formation. Since the extent of the fast neutron cloud may vary depending on whether the formation is liquid- or gas-filled, data processing circuitry may determine the density of the formation based at least in part on the counts of inelastic gamma-rays normalized to the count of neutrons.
摘要翻译：提供了用于确定在液体和气体填充的地层中准确的地下地层的中子 - 伽马密度（NGD）测量的系统，方法和装置。例如，用于获得这样的NGD测量的井下工具可以包括中子发生器，中子检测器，两个伽马射线检测器和数据处理电路。中子发生器可以将中子发射到地层中，形成快中子云。中子检测器可以检测代表中子云范围的中子数。伽马射线检测器可以检测由非弹性地离开地层的中子引起的非弹性γ射线的计数。由于快中子云的程度可以根据地层是液体填充还是填充气体而变化，所以数据处理电路可以至少部分地基于归一化为非均匀性的非弹性γ射线的计数来确定地层的密度计数中子。

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