石油仪器
石油儀器
석유의기
PETROLEUM INSTRUMENTS
2011年
4期
1-4
,共4页
电流线%离散电位数据%侧向测井%有限元%探测特性
電流線%離散電位數據%側嚮測井%有限元%探測特性
전류선%리산전위수거%측향측정%유한원%탐측특성
current line%discrete potential data%Laterolog%Finite Element Method%investigation characteristics
电流线在直观了解侧向类测井仪器探测特性方面具有重要的作用。研究基于有限元计算离散电位的电流线绘制方法,解决了离散数据电流线绘制中的步长选择、方向抉择、突变处理和终止控制等问题,用MATLAB编写绘图程序。以双侧向测井电流线绘制为例,分析均匀、高侵和低侵、围岩带侵入等地层中的双侧向测井探测特性,验证电流线绘制方法的合理性。该方法可推广应用于其它侧向类测井的电流线绘制与探测特性分析。
電流線在直觀瞭解側嚮類測井儀器探測特性方麵具有重要的作用。研究基于有限元計算離散電位的電流線繪製方法,解決瞭離散數據電流線繪製中的步長選擇、方嚮抉擇、突變處理和終止控製等問題,用MATLAB編寫繪圖程序。以雙側嚮測井電流線繪製為例,分析均勻、高侵和低侵、圍巖帶侵入等地層中的雙側嚮測井探測特性,驗證電流線繪製方法的閤理性。該方法可推廣應用于其它側嚮類測井的電流線繪製與探測特性分析。
전류선재직관료해측향류측정의기탐측특성방면구유중요적작용。연구기우유한원계산리산전위적전류선회제방법,해결료리산수거전류선회제중적보장선택、방향결택、돌변처리화종지공제등문제,용MATLAB편사회도정서。이쌍측향측정전류선회제위례,분석균균、고침화저침、위암대침입등지층중적쌍측향측정탐측특성,험증전류선회제방법적합이성。해방법가추엄응용우기타측향류측정적전류선회제여탐측특성분석。
The current line plays an important role in the directly understanding the characteristics of Laterolog tool.A method of drawing current lines for the discrete potential data based on the Finite Element calculation is studied.It solves a series of key problems,including the selection of step length,the identification of direction,treatment of mutation point and the control of stop.A drawing program is written by MATLAB software.Taking the current line drawing of the dual Laterolog logging as an example,we analyze the tool′s investigation characteristics in the several formations such as homogeneous,low or high invasion,and invasion with shoulder.These results verify the effectiveness of the new method.The method can be applied to the other kinds of Laterolog tools to draw their current lines and analyze their investigation characteristics.
