A model of logging response of spontaneous potential and induced polarization potential is established.
建立了自然电位和激发极化电位测井响应模型。
The pressure interpretation mathematical model is established based on the theory of spontaneous potential logging;
从自然电位测井原理出发建立压力解释数学模型；
A new spontaneous potential log model for the case when formation resistivity is not piece - wise constant was introduced.
针对非均质地层中电阻率非分块常数，提出一个新的自然电位测井模型。
Acoustic time, spontaneous potential and induction resistivity have a good correlation on the flowing property of the reservoir.
声波时差、自然电位和感应电阻率对储油层的渗流性能有较好的相关性。
The base line of spontaneous potential is uplifted, the differences of microelectrode and acoustic travel time increased, resistivity decreased.
自然电位基线偏移，微电极幅度差和声波时差增大，电阻率降低；
These spontaneous potential (sp) anomalies show elliptical distribution in the map view. The values of the anomalies increase with the water flow.
测量结果表明，在图域内自然电位异常呈现椭圆形分布，随注水流量增大异常值增大。
It noted that the concentration of formation water and the cation exchange capacity are the main factors that influence the spontaneous potential.
证明了地层水浓度、阳离子交换量是影响自然电位大小的主要因素。
Experimental results indicate that the response of spontaneous potential logs in watered-out zone is different from that in the zone not watered-out.
结果表明，水淹层的自然电位测井响应出现了异常。
We get that the direct problem of spontaneous potential well-logging is an elliptical boundary value problem with jumping condition on the interface.
得到了自然电位测井正问题是一个在交界面上有跳跃的椭圆边界值问题。
So, the investigation depth of spontaneous potential logging is the depth of mud invasion, and relation between spontaneous potential and mud invasion depth may be built.
因此，可以得出自然电位测井的探测深度就是泥浆侵入深度，并可建立自然电位与泥浆侵入深度之间的关系。
Strata physical nature is good for geophysical prospecting in lqe coalfield, there are less interference in the area, while the spontaneous potential curve anomalies are clearly reflected.
鱼卡煤田地层物性条件较好，区内干扰较小，自然电位曲线异常反映比较明显。
Spontaneous potential (SP) of a formation has tight relationship with salinity of formation liquid, the salinity of mud filtrate in invaded zone affects SP log considerably.
自然电位与地层流体的矿化度有密切关系，侵入带中泥浆滤液的矿化度对自然电位测井有较大的影响。
Spontaneous potential (SP) of a formation has tight relationship with salinity of formation liquid, the salinity of mud filtrate in invaded zone affects SP log considerably.
自然电位与地层流体的矿化度有密切关系，侵入带中泥浆滤液的矿化度对自然电位测井有较大的影响。
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