CAJ | 학술논문

低阻环带是可动用油气显示的有力证据，也是判断油气层，尤其是低电阻率油气层的有效手段。从油水两相渗流方程出发，推导出了油、水相在泥浆侵入过程中的渗流推进速度，分析了低阻环带的形成过程。高频感应仪器能同时测量5条电阻率曲线，从曲线之间的关系能看出低阻环带有3种表现形式，分别是R07最低、R10最低、R14最低，通过这3种形式可以分析低阻环带的形成过程和储层特性。分别给出了低阻环带3种形式的实例及高频感应处理结果，结果显示，根据高频感应测井能直观探测出低阻环带的特性，可快速地判断储层为油层、水层和油水同层。
저조배대시가동용유기현시적유력증거，야시판단유기층，우기시저전조솔유기층적유효수단。종유수량상삼류방정출발，추도출료유、수상재니장침입과정중적삼류추진속도，분석료저조배대적형성과정。고빈감응의기능동시측량5조전조솔곡선，종곡선지간적관계능간출저조배대유3충표현형식，분별시R07최저、R10최저、R14최저，통과저3충형식가이분석저조배대적형성과정화저층특성。분별급출료저조배대3충형식적실례급고빈감응처리결과，결과현시，근거고빈감응측정능직관탐측출저조배대적특성，가쾌속지판단저층위유층、수층화유수동층。
The low-resistivity annulus is the strong evidence of available oil and gas,and the effective means of judgement of oil and gas layer,especially the low resistivity oil and gas layer. Based on the flow equations of oil and water two phases,the seepage driving velocity is derived during mud filtrate invaded formation,and the process of forming low-resistivity annulus was analyzed. The high frequency induction log can get five resistivity curves at one time. From the reaction of the curves,we can see there are three manifestations for low-resistivity annulus and they are R07 the lowest,R10 the lowest,R11 the lowest, respectively. The paper analyzed the formation process of low-resistivity annulus and reservoir characteristics through the three manifestations. Some examples of the three manifestations of low-resistivity annulus and the process result from high frequency induction log were presented,the results shows that we can quickly tell the reservoir is oil layer,water layer or oil-water layer.