基于0.2 m高分辨率測井系列的表外薄差水淹層解釋新技術
發(fā)布時間:2018-04-15 01:34
本文選題:. + m分辨率 ; 參考:《大慶石油地質與開發(fā)》2017年02期
【摘要】:針對高含水油田測井分辨率不足的實際和表外儲層有效解釋方法的缺失,充分利用0.2 m高分辨率測井新系列獨特的技術優(yōu)勢,準確求取薄差層地層水電阻率、含水飽和度、驅油效率等地質參數(shù)。在此基礎上,通過水淹狀態(tài)敏感參數(shù)的優(yōu)選,成功建立起水淹狀態(tài)方程和重心法相結合的水淹判別方法,既準確判斷出遵循"四性關系"的儲層水淹級別,又解決了特征參數(shù)正態(tài)性帶來的矛盾,建立起表外薄差層解釋新方法,填補了表外薄差層有效解釋方法這一空白,形成與新測井技術相配套的水淹層解釋新技術。通過4口取心井資料驗證,薄差層解釋符合率高達87.5%,為特高含水期油田持續(xù)穩(wěn)產提供了有力技術支撐。
[Abstract]:In view of the lack of logging resolution in high water-cut oil fields and the lack of effective interpretation methods for off-surface reservoirs, the authors fully utilize the unique technical advantages of the new series of high-resolution logging at 0.2 m to accurately obtain the formation water resistivity and water saturation of thin and differential formations.Oil displacement efficiency and other geological parameters.On the basis of this, through the optimal selection of sensitive parameters of water-flooded state, a water-flooded discrimination method combining the water-flooded state equation and the barycenter method is established successfully, which can accurately judge the water-flooded level of reservoir following the "four-sex relationship".The contradiction caused by the normality of characteristic parameters is solved, and a new interpretation method of outer thin layer is established, which fills the blank of effective interpretation method of outer thin difference layer, and forms a new interpretation technology of water-flooded zone which is matched with the new logging technology.Through the data verification of 4 coring wells, the interpretation coincidence rate of thin and differential layers is as high as 87.5, which provides a strong technical support for the sustained and stable production of oil fields in the ultra-high water-cut period.
【作者單位】: 大慶油田有限責任公司鉆探工程公司測井公司;
【分類號】:P631.81;TE31
【參考文獻】
相關期刊論文 前10條
1 李漢川;荊萬學;張海寧;姜亦忠;苗清;董建剛;;基于近井壁自然電位的大慶油田水淹儲層地層水電阻率計算方法[J];測井技術;2017年01期
2 張Y鈰,
本文編號:1751950
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