spontaneous potential curve meaning in English

自然电位曲线

The fluid properties and strata pressure have obviousely changed during the high water cut stage , which exert unfavorable influence on determining formation water resistivity based on spontaneous potential curves . from the analysis of the mechanism for forming
针对油田高含水期地层流体性质和地层压力的变化给应用自然电位曲线求取地层水电阻率产生不利影响的实际问题，从自然电位产生的机理出发，研究了应用自然电位曲线求取地层水电阻率的方法。