JP2014527618A - 油田用途のためのシンチレータに基づく中性子検出器 - Google Patents
油田用途のためのシンチレータに基づく中性子検出器 Download PDFInfo
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V5/00—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity
- G01V5/04—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity specially adapted for well-logging
- G01V5/08—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity specially adapted for well-logging using primary nuclear radiation sources or X-rays
- G01V5/10—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity specially adapted for well-logging using primary nuclear radiation sources or X-rays using neutron sources
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T3/00—Measuring neutron radiation
- G01T3/06—Measuring neutron radiation with scintillation detectors
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V5/00—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity
- G01V5/04—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity specially adapted for well-logging
- G01V5/08—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity specially adapted for well-logging using primary nuclear radiation sources or X-rays
- G01V5/10—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity specially adapted for well-logging using primary nuclear radiation sources or X-rays using neutron sources
- G01V5/107—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity specially adapted for well-logging using primary nuclear radiation sources or X-rays using neutron sources and detecting reflected or back-scattered neutrons
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Abstract
Description
さらなる特徴および優位性は、添付図面と合わせて、以下の詳細な説明から容易に明らかになるだろう。
Claims (20)
- 中性子源と、
対象とする地層から受け取られた散乱源中性子と相互作用するように配置されたシンチレータであって、前記シンチレータは前記散乱中性子との相互作用に応答してルミネセンスを放射するように構成され、ユーロピウムをドープしたアルミノフルオリドホスト材料を含む、シンチレータと、
前記シンチレータの検出されたルミネセンスを示す出力信号を提供するように構成されたルミネセンス検出器と、
を備えている、掘削坑検層器具。 - 前記アルミノフルオリドホストがLiCAFを含む、請求項1に記載の掘削坑検層器具。
- 前記散乱中性子が、熱および熱外中性子を含む、請求項1に記載の掘削坑検層器具。
- 前記シンチレータを前記ルミネセンス検出器に連結するための光ガイド
をさらに備えている、請求項1に記載の掘削坑検層器具。 - 中性子源と、
対象とする地層から受け取られた散乱源中性子と相互作用するように配置されたシンチレータであって、前記シンチレータは前記散乱中性子との相互作用に応答してルミネセンスを放射するように構成され、アルミノフルオリドホスト材料を含む、シンチレータと、
前記シンチレータの検出されたルミネセンスを示す出力信号を提供するように構成された、ルミネセンス検出器と、
前記出力信号を受け取り、前記出力信号内のピークの特定に基づいて、ガンマ線から前記散乱中性子を区別するように構成されたプロセッサと、
を備えている、掘削坑検層システム。 - 前記出力信号内の前記ピークが、パルス波形弁別を用いて特定される、請求項5に記載の掘削坑検層システム。
- 前記出力信号内の前記ピークが、弁別器領域を定義することによって特定される、請求項5に記載の掘削坑検層システム。
- 前記出力信号内の前記ピークが、パルス波高弁別を用いて特定される、請求項5に記載の掘削坑検層システム。
- 前記アルミノフルオリドホストが、LiCAFである、請求項5に記載の掘削坑検層システム。
- 前記アルミノフルオリドホストが、活性ドーパントをドープされている、請求項9に記載の掘削坑検層システム。
- 前記アルミノフルオリドホストが、希土類材料をドープされている、請求項10に記載の掘削坑検層システム。
- 前記アルミノフルオリドホストが、ユーロピウムをドープされている、請求項5に記載の掘削坑検層システム。
- 前記アルミノフルオリドホストが、セリウムをドープされている、請求項5に記載の掘削坑検層システム。
- 前記散乱中性子が、熱および熱外中性子である、請求項5に記載の掘削坑検層システム。
- 前記デバイスが、
中性子およびガンマ線との相互作用に応答してルミネセンスを放射するように構成された第1のシンチレータと、
ガンマ線との相互作用に応答してルミネセンスを放射するように構成された第2のシンチレータであって、少なくとも1つの応答パラメータが前記第1のシンチレータと異なる、第2のシンチレータと、
前記第1のシンチレータおよび前記第2のシンチレータの検出されたルミネセンスを示す出力信号を提供するように構成されたルミネセンス検出器と、
(1)前記出力信号を受け取り、前記少なくとも1つの応答パラメータを用いて前記第1のシンチレータによって発せられるルミネセンスと前記第2のシンチレータによって発せられるルミネセンスとを区別し、(2)前記第1のシンチレータによって発せられる前記ルミネセンスから前記第2のシンチレータによって発せられる前記ルミネセンスを減算して、前記第1のシンチレータの中性子応答を特定するように構成されたプロセッサと、
を備える、中性子検出のためのシステム。 - 前記少なくとも1つの応答パラメータが、前記ルミネセンスの波長または前記ルミネセンスの減衰時間のうちの少なくとも1つである、請求項15に記載のシステム。
- 前記第2のシンチレータのガンマ線応答が、ガンマ減算が効果的に行われるように、前記第1のシンチレータのガンマ線応答に類似している、請求項15に記載のシステム。
- 前記第2のシンチレータは中性子に応答しない、請求項15に記載のシステム。
- 前記第1のシンチレータおよび前記第2のシンチレータのうちの少なくとも1つは、セリウムをドープしたアルミノフルオリドホスト材料を含み、前記第1のシンチレータおよび前記第2のシンチレータのうちの少なくとも1つは、ユーロピウムをドープしたアルミノフルオリドホスト材料を含んでいる、請求項15に記載のシステム。
- 前記第2のシンチレータは、前記第1のシンチレータによる中性子相互作用から遮蔽されている、請求項15に記載のシステム。
Applications Claiming Priority (3)
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US201161501248P | 2011-06-26 | 2011-06-26 | |
US61/501,248 | 2011-06-26 | ||
PCT/US2012/044200 WO2013003349A2 (en) | 2011-06-26 | 2012-06-26 | Scintillator-based neutron detector for oilfield applications |
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JP2014527618A true JP2014527618A (ja) | 2014-10-16 |
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US (1) | US9304226B2 (ja) |
EP (1) | EP2699948A2 (ja) |
JP (1) | JP2014527618A (ja) |
WO (1) | WO2013003349A2 (ja) |
Cited By (1)
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KR102327811B1 (ko) * | 2021-07-23 | 2021-11-18 | 주식회사 스탠더드시험연구소 | 중성자 차등 소멸 시간 측정 장치의 멀티플렉서를 이용한 데이터 처리 장치 및 방법 |
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JP6204746B2 (ja) * | 2013-08-20 | 2017-09-27 | 株式会社トクヤマ | 中性子シンチレーター及び中性子検出器 |
SG11201602915SA (en) * | 2013-10-25 | 2016-05-30 | Saint Gobain Ceramics | Scintillator and pulse shape discrimination for use with the scintillator |
WO2015130777A1 (en) * | 2014-02-27 | 2015-09-03 | Saint-Gobain Ceramics & Plastics, Inc. | Radiation detector, processor module, and methods of detecting radiation and well logging |
US9482763B2 (en) | 2014-05-08 | 2016-11-01 | Baker Hughes Incorporated | Neutron and gamma sensitive fiber scintillators |
WO2015171919A1 (en) * | 2014-05-09 | 2015-11-12 | Saint-Gobain Ceramics & Plastics, Inc. | Radiation detection apparatus having a doped scintillator and a pulse shape analysis module and a method of using the same |
CA2968683C (en) | 2015-02-19 | 2019-11-26 | Halliburton Energy Services, Inc. | Gamma detection sensors in a rotary steerable tool |
EP3271550B1 (en) | 2015-03-17 | 2020-12-02 | Halliburton Energy Services, Inc. | Gamma analysis of cement |
WO2017015340A1 (en) * | 2015-07-20 | 2017-01-26 | Pietro Fiorentini Spa | Systems and methods for monitoring changes in a formation while dynamically flowing fluids |
FR3042605B1 (fr) * | 2015-10-20 | 2017-12-15 | Commissariat Energie Atomique | Systeme de detection de neutrons et procede de detection associe |
FR3064949B1 (fr) * | 2017-04-11 | 2021-02-12 | Automotive Exteriors Europe | Ouvrant de vehicule automobile. |
AU2019375967A1 (en) * | 2018-11-06 | 2021-06-03 | Understory, Inc. | Rain sensor |
CN110806599B (zh) * | 2019-12-12 | 2024-07-26 | 中国工程物理研究院激光聚变研究中心 | 脉冲选通式中子探测器及其探测方法 |
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- 2012-06-26 EP EP12743259.9A patent/EP2699948A2/en not_active Withdrawn
- 2012-06-26 US US14/127,898 patent/US9304226B2/en active Active
- 2012-06-26 WO PCT/US2012/044200 patent/WO2013003349A2/en active Application Filing
- 2012-06-26 JP JP2014518914A patent/JP2014527618A/ja active Pending
Patent Citations (4)
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JPH10311882A (ja) * | 1997-03-04 | 1998-11-24 | Anadrill Internatl Sa | 土類層の濃度判別方法 |
JP2002006055A (ja) * | 2000-06-26 | 2002-01-09 | Toshiba Corp | 放射線測定方法および装置 |
WO2009119378A1 (ja) * | 2008-03-24 | 2009-10-01 | 株式会社トクヤマ | 中性子検出用シンチレーターおよび中性子検出装置 |
WO2010135301A2 (en) * | 2009-05-20 | 2010-11-25 | Schlumberger Canada Limited | Scintillators and subterranean detectors |
Cited By (1)
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KR102327811B1 (ko) * | 2021-07-23 | 2021-11-18 | 주식회사 스탠더드시험연구소 | 중성자 차등 소멸 시간 측정 장치의 멀티플렉서를 이용한 데이터 처리 장치 및 방법 |
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WO2013003349A3 (en) | 2013-05-16 |
EP2699948A2 (en) | 2014-02-26 |
US9304226B2 (en) | 2016-04-05 |
US20140124659A1 (en) | 2014-05-08 |
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