[1]李婷婷,成志剛,石玉江,等.基于地層元素測井資料的隴東長7儲層礦物含量精確計算[J].測井技術,2019,43(03):303-309.[doi:10.16489/j.issn.1004-1338.2019.03.016]
 LI Tingting,CHENG Zhigang,SHI Yujiang,et al.An Accurate Method of Computing the Mineral Content in Longdong Chang 7 Reservoir by Elemental Capture Spectroscopy Logging Data[J].WELL LOGGING TECHNOLOGY,2019,43(03):303-309.[doi:10.16489/j.issn.1004-1338.2019.03.016]
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基于地層元素測井資料的隴東長7儲層礦物含量精確計算()
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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:
303-309
欄目:
解釋評價
出版日期:
2019-08-30

文章信息/Info

Title:
An Accurate Method of Computing the Mineral Content in Longdong Chang 7 Reservoir by Elemental Capture Spectroscopy Logging Data
文章編號:
1004-1338(2019)03-0303-07
作者:
李婷婷1 成志剛1 石玉江2 席輝1 羅少成1 郭笑鍇1
(1.中國石油集團測井有限公司, 陜西 西安 710077; 2.長慶油田勘探開發研究院, 陜西 西安 710018)
Author(s):
LI Tingting1 CHENG Zhigang1 SHI Yujiang2 XI Hui1 LUO Shaocheng1 GUO Xiaokai1
(1. China Petroleum Logging CO. LTD., Xi'an, Shaanxi 710077, China; 2. Research Institute of Exploration and Development, Changqing Oilfield Company, Xi'an, Shaanxi 710018, China)
關鍵詞:
測井解釋 地層元素測井 元素含量 礦物含量 隴東長7儲層
Keywords:
log interpretation elemental capture spectroscopy element content mineral content Longdong Chang 7 reservoir
分類號:
P631.84
DOI:
10.16489/j.issn.1004-1338.2019.03.016
文獻標志碼:
A
摘要:
隴東長7油藏具有儲層致密、巖性復雜、非均質性強等特征,傳統方法難以準確計算礦物含量,容易漏失儲層。利用地層元素測井資料可以建立針對地區地質特點的高精度礦物含量計算模型,從而準確劃分出有效儲層。以鄂爾多斯盆地隴東延長組長7儲層為研究主體,以X衍射數據和地層元素測井數據為基礎,利用地層元素測井資料分別建立元素識別礦物大類、巖石精細礦物計算模型; 在沒有巖心資料的情況下,則采用另一種方法,即在明確了地區礦物大類的基礎上,建立元素含量與主要礦物含量的解釋模型,并通過最優化算法計算出礦物含量。經過巖心資料的驗證,模型計算礦物含量平均絕對誤差為2.75%,平均相對誤差為0.216%,滿足了該區礦物含量精確計算的要求。
Abstract:
Chang 7 reservoir is tight, complex and heterogenous. It is difficult to accurately calculate the mineral content by a traditional method, which often neglects effective reservoir. Elemental capture spectroscopy logging can be used to establish a high-precision mineral content model based on regional geological features, for accurately identifying effective reservoirs. In this paper, taking the Chang 7 reservoir of the Yanchang formation in the Ordos basin as an example, and based on X-ray diffraction and Elemental Capture Spectroscopy logging data, a regional element identification model and a fine mineral calculation model are established. Without core data, another method is used, that is to first establish an interpretation model for estimating element content and primary minerals after understanding regional mineral composition, and then calculate the mineral content by an optimization algorithm. Verification with core data to the mineral content from the models indicates that the average absolute error is 2.75%, and the average relative error is 0.216%. The models are useful in this area.

參考文獻/References:

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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“復雜油氣藏地震預測與測井識別技術研究”(2016E-0503) 第一作者: 李婷婷,女,1986年生,從事測井資料解釋與評價工作。E-mail:[email protected]
更新日期/Last Update: 2019-08-30
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