[1]宿鶴松,孫建孟,劉行軍,等.白于山區塊特低滲透率水淹層測井精細評價研究[J].測井技術,2020,(04):391-397.[doi:10.16489/j.issn.1004-1338.2020.04.015]
 SU Hesong,SUN Jianmeng,LIU Xingjun,et al.Evaluation of Water-Flooded Zone to Ultra-Low Permeability Reservoir in Baiyushan Block[J].WELL LOGGING TECHNOLOGY,2020,(04):391-397.[doi:10.16489/j.issn.1004-1338.2020.04.015]
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白于山區塊特低滲透率水淹層測井精細評價研究()
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《測井技術》[ISSN:1004-1338/CN:61-1223/TE]

卷:
期數:
2020年04期
頁碼:
391-397
欄目:
解釋評價
出版日期:
2020-08-30

文章信息/Info

Title:
Evaluation of Water-Flooded Zone to Ultra-Low Permeability Reservoir in Baiyushan Block
文章編號:
1004-1338(2020)04-0391-07
作者:
宿鶴松1 孫建孟1 劉行軍2 文曉峰2 曹孟鑫2 趙建鵬3 羅紅1
(1.中國石油大學(華東)地球科學與技術學院, 山東 青島 266580; 2.中國石油集團測井 有限公司長慶分公司, 陜西 西安 710065; 3.西安石油大學, 陜西 西安 710065)
Author(s):
SU Hesong1 SUN Jianmeng1 LIU Xingjun2 WEN Xiaofeng2 CAO Mengxin2 ZHAO Jianpeng3 LUO Hong1
(1. China University of Petroleum, Qingdao, Shandong 266580, China; 2. Changqing Branch, China Petroleum Logging CO. LTD., Xi'an, Shaanxi 710065, China; 3. Xi'an Shiyou University, Xi'an, Shaanxi 710065, China)
關鍵詞:
特低滲透率儲層 水淹機理 測井響應 解釋模型 白于山區塊
Keywords:
ultra-low permeability reservoir water-flooded mechanism logging response interpretation model Baiyushan block
分類號:
P631.84
DOI:
10.16489/j.issn.1004-1338.2020.04.015
文獻標志碼:
A
摘要:
X區塊百口泉組砂礫巖儲層常規測井資料受儲層鈣質含量影響而導致測井巖性識別精度低。以歸位后巖心分析的鈣質含量數據為基礎,分析鈣質含量對儲層電阻率、密度值的影響。運用歸一化處理分析深側向電阻率與體積密度比值和鈣質含量與孔隙度比值之間的關系,建立儲層鈣質含量計算模型,采用電阻率對數增大率法消除鈣質含量對儲層電阻率的影響; 選取對巖性較為敏感的電阻率、密度、伽馬等曲線,運用C4.5決策樹算法建立決策樹巖性識別模型,對實際資料進行判別分析。結果表明,所建立的決策樹模型能夠較好地識別研究區儲層巖性,識別結果與巖心描述吻合度達到83%以上
Abstract:
In order to qualitatively identify and quantitatively evaluate ultra-low permeability water-flooded layer in Baiyushan block, a log interpretation model is established. According to the characteristics that the resistivity of ultra-low permeability layer changes with the increase of water saturation, four methods are adopted to identify water-flooded layers, which are natural potential curve change method, new and old well resistivity comparison method, resistivity reconstruction method and resistivity differential ratio method. The ratio of difference between measured resistivity and reconstructed resistivity saturated with oil and water is used to establish a freshwater water-flooded grade division cross chart, which improves the accuracy of logging curve identification of water-flooded layers. In terms of quantitative evaluation, the applicability about the mixed fluid of variable magnification material balance method is verified through experiments, the three-parameter combined quantitative iteration method is used to solve the water saturation, water production rate and resistivity of mixed formation water, which can adapt to the calculation of three parameters in different water-flooding stages. Compared with the actual analysis data, the coincidence rate between the water-flooding level and the actual analysis by using the parameter calculation results is above 90%, thus improving the accuracy of quantitative evaluation of water-flooded layers

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備注/Memo

備注/Memo:
(修改回稿日期: 2020-05-25 本文編輯 杜雪威) 基金項目: 國家科技重大專項“大型油氣田及煤層氣開發”(2016ZX05050); 國家自然科學基金面上項目(41574122) 第一作者: 宿鶴松,男,1993年生,碩士研究生,從事測井解釋與方法等方面應用研究。E-mail:[email protected]
更新日期/Last Update: 2020-08-25
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