体彩河南11选五走势图:
[1]趙靜,馮春珍,王艷梅,等.核磁共振敏感參數在低對比度油層識別中的應用[J].測井技術,2019,43(03):316-322.[doi:10.16489/j.issn.1004-1338.2019.03.018]
 ZHAO Jing,FENG Chunzhen,WANG Yanmei,et al.Application of Sensitive NMR Parameters in Oil-water Identification of Low-contrast Reservoirs[J].WELL LOGGING TECHNOLOGY,2019,43(03):316-322.[doi:10.16489/j.issn.1004-1338.2019.03.018]
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核磁共振敏感參數在低對比度油層識別中的應用()
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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:
316-322
欄目:
解釋評價
出版日期:
2019-06-30

文章信息/Info

Title:
Application of Sensitive NMR Parameters in Oil-water Identification of Low-contrast Reservoirs
文章編號:
1004-1338(2019)03-0316-07
作者:
趙靜 馮春珍 王艷梅 郭紅梅 王琪 徐磊
(中國石油集團測井有限公司長慶分公司, 陜西 西安 710201)
Author(s):
ZHAO Jing FENG Chunzhen WANG Yanmei GUO Hongmei WAGN Qi XU Lei
(Changqing Branch, China Petroleum Logging CO. LTD., Xi'an, Shaanxi 710201, China)
關鍵詞:
測井解釋 低對比度油層 核磁共振測井 T2譜敏感參數 綜合含油指數 油水識別
Keywords:
log interpretation low-contrast reservoir NMR Logging T2 spectrum sensitive parameter comprehensive oil index oil-water identification
分類號:
P631.84
DOI:
10.16489/j.issn.1004-1338.2019.03.018
文獻標志碼:
A
摘要:
鄂爾多斯盆地姬塬地區延長組長×儲層為低對比度油層,油水關系復雜,礦化度較低且變化大,發育大量高電阻率水層,常規油水識別難,解釋符合率較低。通過儲層特征與油水識別難點分析,在巖石物理實驗的基礎上,明確核磁共振T2譜形態特征的主要影響因素,提出了基于核磁共振T2譜的半幅點偏移量、離散度、右翼展幅、拖尾面積等多個反映流體性質的敏感參數。綜合應用敏感參數加權組合,建立了基于核磁共振敏感參數的油水定量識別標準。應用于20口井,解釋符合率明顯提升,形成了陣列感應+核磁共振測井系列,解決了低對比度油層的識別問題,取得良好地質應用效果。
Abstract:
The low-contrast Chang × reservoir in the Jiyuan area, the Ordos Basin, has complex oil-water relations, low and variable water salinity and many high-resistivity water layers. It is difficult to identify OWC and the logging interpretation coincidence rate is low. In this paper, based on petrophysics experiments, the influencing factors on NMR T2 spectrum morphology are identified, and then sensitive NMR parameters for fluid properties are proposed, such as half-amplitude point offset, dispersion, right wring amplitude and tailing area of NMR T2 Spectra. Finally a quantitative oil-water identification standard is established based on the sensitive parameters. Application in 20 wells proved the coincidence rate improved obviously. It is useful to identify oil layers in low-contrast reservoirs. The geological application is achievable.

參考文獻/References:

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備注/Memo

備注/Memo:
第一作者: 趙靜,女,1974年生,高級工程師,從事測井解釋及研究工作。E-mail:[email protected]
更新日期/Last Update: 2019-08-30