[1]喻益明.一種基于溴化鑭晶體的伽馬能譜采集系統設計[J].石油管材與儀器,2020,6(03):18-21.[doi:10.19459/j.cnki.61-1500/te.2020.03.005]
 YU Yiming.Design of Gamma Energy Spectrum Acquisition System Based on Lanthanum Bromide Crystal[J].Petroleum Tubular Goods & Instruments,2020,6(03):18-21.[doi:10.19459/j.cnki.61-1500/te.2020.03.005]
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一種基于溴化鑭晶體的伽馬能譜采集系統設計
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《石油管材與儀器》[ISSN:2096-0077/CN:61-1500/TE]

卷:
6
期數:
2020年03期
頁碼:
18-21
欄目:
開發設計
出版日期:
2020-06-20

文章信息/Info

Title:
Design of Gamma Energy Spectrum Acquisition System Based on Lanthanum Bromide Crystal
文章編號:
2096-0077(2020)03--0018-04
作者:
喻益明
大慶油田有限責任公司測試技術服務分公司 黑龍江 大慶 163153
Author(s):
YU Yiming
Logging and Testing Services Company, Daqing Oilfield Co.Ltd.,Daqing,Heilongjiang 163153,China
關鍵詞:
分辨率溴化鑭晶體脈沖幅度分析
Keywords:
resolution lanthanum bromide crystal pulse amplitude analysis
分類號:
P631.8
DOI:
10.19459/j.cnki.61-1500/te.2020.03.005
文獻標志碼:
A
摘要:
為了提高脈沖中子全譜測井的統計精度,設計了一種基于溴化鑭晶體的高效伽馬能譜采集系統。對探測器原始信號進行前置放大、極零相消、S-K濾波成形、增益調節等電路調理,用較少的濾波成形級數得到準高斯波形;通過高速數字化多道脈沖幅度分析電路對數據快速處理,能夠采集到分辨率更高的能譜曲線,F場試驗結果表明,使用溴化鑭探測器的高效脈沖中子全譜測井儀分辨率更高,含油飽和度解釋結果與取心結果一致,剩余油解釋結果精度更精確。
Abstract:
In order to improve the statistical accuracy of pulsed neutron fullspectrum logging, an efficient gamma energy spectrum acquisition system based on lanthanum bromide crystals was designed. After the original signal of the detector was conditioned with preamplifier, polezero cancellation, SK filter forming and gain adjustment, etc., quasiGaussian waveforms were obtained with less filtering shaping stages. Through quick processing to the data using highspeed digital multichannel pulse amplitude analysis circuit, higherresolution energy spectrum curve was collected. The field test results show that the highefficiency pulsed neutron full spectrum logging tool using a lanthanum bromide detector has advantages in that the resolution is higher, the interpretation result of oil saturation is consistent with the coring result, and the interpretation accuracy of remaining oil is more accurate.

參考文獻/References:

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[5] 張堅鋒,于其蛟,郭紅旗,等. 雙源通用式地層元素測井儀的研究與設計[J]. 石油管材與儀器,2016, 2(6): 16-18,22.

備注/Memo

備注/Memo:
基金項目:中國石油天然氣股份有限公司重大科技專項“大慶油氣持續有效發展關鍵技術研究與應用”(項目編號:2016E-0210) 第一作者簡介:喻益明,男,1981年生,工程師,2005年畢業于大慶石油學院石油工程專業,現從事測井儀器研發工作。E-mail:[email protected]
更新日期/Last Update: 2020-06-25
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