[1]胡松,徐英華,袁超,等.脈沖中子氯能譜測井的蒙特卡羅模擬研究[J].測井技術,2019,43(03):241-246.[doi:10.16489/j.issn.1004-1338.2019.03.004]
 HU Song,XU Yinghua,YUAN Chao,et al.Monte Carlo Simulation on Logging Response and Controlling Factors of Pulsed Neutron Chlorine Logging[J].WELL LOGGING TECHNOLOGY,2019,43(03):241-246.[doi:10.16489/j.issn.1004-1338.2019.03.004]
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脈沖中子氯能譜測井的蒙特卡羅模擬研究()
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《測井技術》[ISSN:1004-1338/CN:61-1223/TE]

卷:
第43卷
期數:
2019年03期
頁碼:
241-246
欄目:
方法研究
出版日期:
2019-06-30

文章信息/Info

Title:
Monte Carlo Simulation on Logging Response and Controlling Factors of Pulsed Neutron Chlorine Logging
文章編號:
1004-1338(2019)03-0241-06
作者:
胡松1 徐英華2 袁超3 許靜4
(1.中國石化石油勘探開發研究院, 北京 100083; 2.中國石油集團測井有限公司大慶分公司, 黑龍江 大慶 163000; 3.中國石油勘探開發研究院, 北京 100083; 4.中國石油大港油田分公司勘探開發研究院, 天津 300270)
Author(s):
HU Song1 XU Yinghua2 YUAN Chao3 XU Jing4
(1. Research Institute of Petroleum Exploration & Production, SNOPEC, Beijing 100083, China; 2. Daqing Branch of China Petroleum Logging CO. LTD., Daqing, Heilongjiang 163000, China; 3. Research Institute of Petroleum Exploration & Development, PetroChina, Beijing 100083, China; 4. Research Institute of Exploration & Development, PetroChina Dagang Oilfield Company, Tianjin 300270, China)
關鍵詞:
脈沖中子源 氯能譜測井 測井響應 影響因素 蒙特卡羅模擬
Keywords:
pulsed-neutron source chlorine spectrum logging logging response controlling factor Monte Carlo simulation
分類號:
P631.84
DOI:
10.16489/j.issn.1004-1338.2019.03.004
文獻標志碼:
A
摘要:
氯能譜測井是評價地層含油飽和度的有效方法,在高礦化度地層應用效果明顯。傳統氯能譜測井是采用镅鈹中子源,利用蒙特卡羅數值模擬方法開展采用脈沖中子源的氯能譜測井響應及其影響因素研究,驗證脈沖中子氯能譜測井的可行性。研究結果表明,氯能譜與熱中子計數比值隨著含油飽和度的增加呈線性減小趨勢,且孔隙度越大越有利于飽和度評價; 巖性對測井響應影響很大,若地層巖性已知可以消除其影響; 泥質含量的影響很小,泥質含量較小時可以忽略其影響; 地層水礦化度是限制氯能譜測井應用的因素,地層水礦化度大于40 000 mg/L時效果明顯,地層水礦化度越高越有利于含油飽和度的確定; 井眼尺寸越大氯能譜與熱中子計數的比值越小,越不利于含油飽和度的確定; 當井眼中含有礦化水時會使氯能譜與熱中子計數的比值增加,在測井解釋時需要對井眼流體做必要的校正。通過研究,驗證了采用脈沖中子源進行氯能譜測井的可行性。
Abstract:
Chlorine spectrum logging tool is effective to determine oil saturation in a cased well. It is comparable with C/O logging and thermal neutron lifetime logging tools, especially in the formation with high salinity. Traditional chlorine spectrum logging tool uses Am-Be neutron source. In this study, Monte Carlo numerical simulation was carried out on the response and controlling factors of chlorine spectrum logging with pulsed neutron source, to investigate the feasibility of pulsed neutron chlorine spectrum logging. It can be concluded that:the ratio of gamma count in chlorine spectrum range to thermal neutron count decreases linearly with the increase of oil saturation; the higher the porosity, the more beneficial to the determination of oil saturation; lithology has a great effect on logging response, which can be eliminated at known lithology; shale has a slight effect, which can be ignored at low shale content; formation salinity influences chlorine spectrum logging response; when formation salinity is higher than 4%, chlorine spectrum logging works well; and the greater the salinity, the more beneficial to the determination of oil saturation; the larger the borehole, the smaller the ratio of gamma count in chlorine spectrum range to thermal neutron count, the worse to the determination of oil saturation; and the ratio increases if borehole fluid contains saline water, and the effect of borehole fluid should be corrected in log interpretation. The study has proved chlorine spectrum logging based on pulsed-neutron source is feasible.

參考文獻/References:

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備注/Memo

備注/Memo:
基金項目: 中國科學院戰略先導科技專項(A類)“深層儲層巖相測井識別及儲層參數定量評價技術”(XDA14010204-1); 國家科技重大專項“致密復雜碎屑巖儲層測井評價技術研究”(2016ZX05002-005-001); 國家科技重大專項“超深層碳酸鹽巖縫洞性儲層測井精細評價技術”(2017ZX05005005-005) 第一作者: 胡松,男,1985年生,副研究員,從事測井方法理論、解釋及地質應用研究。E-mail:[email protected]
更新日期/Last Update: 2019-08-30
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