自然电位测井

以及应用自然电位测井曲线计算水淹层地层水电阻率。

Use SP log in determination of flooding and how to compute resistivity of formation water in flooded zone are also described .

针对地层水矿化度低、含水饱和度计算困难的含砾疏松砂泥岩储层，自然伽马、自然电位测井无法用于计算泥质含量。

For the sand-shale formation with conglomerates , which has lower formation water salinity and is difficult to calculate water saturation , it is hard to calculate bulk volume fraction of shale with GR and SP Log .

自然电位测井方法以往仅应用于裸眼井中。

SP logging method was only used in the open hole .

自然电位测井在可地浸砂岩型铀矿找矿中的应用

Application of spontaneous potential logging in exploration of sandstone-type uranium

自然电位测井技术在隐蔽油气层识别中的应用

Application of spontaneous potential logging in recognition of blind zone

自然电位测井的数学方法

A Mathematical Method in Electric Logs by the Spontaneous Potential

分形测井解释方法研究应用自然电位测井曲线解释沉积环境

Simple explanation on fractal well - log interpretation

激发极化测井主要和自然电位测井相结合用于评价水淹层。

Polarization and spontaneous well logging are mainly used to evaluate the flooded layer .

从自然电位测井原理出发建立压力解释数学模型；

The pressure interpretation mathematical model is established based on the theory of spontaneous potential logging ;

利用双自然电位测井研究水淹层测井解释

Log Interpretation for Water Flooded Zones Using Dual Spontaneous Potential Log Studies on Self Potential Well Logging

从最初的自然电位测井，发展到了感应测井和阵列感应测井。

Developed from the spontaneous potential logging , induction logging and array induction logging are popular today .

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。

A new spontaneous potential log model for the case when formation resistivity is not piece-wise constant was introduced .

本文主要讨论了在求解自然电位测井的正问题时所用到的一个数值方法。

In this paper , we mainly discuses a numerical method in solving the direct prob-lem of spontaneous potential well-logging .

在此基础上，通过泥浆电阻率的合理选取，可以增强自然电位测井资料对泥质砂岩储层含油性的定性识别能力。

The results show that the influence of oil saturation on the membrane potential of shaly sand is not negligible .

结果表明，水淹层的自然电位测井响应出现了异常。

Experimental results indicate that the response of spontaneous potential logs in watered-out zone is different from that in the zone not watered-out .

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。

We get that the direct problem of spontaneous potential well-logging is an elliptical boundary value problem with jumping condition on the interface .

为此，大庆油区进行了钢套管井井内自然电位测井现场试验。稀土在石油套管钢中的应用研究

So field experiments of borehole SP logging in the steel cased wells are made in Daqing petroliferous area . Application of Rare Earth in Oil Country Tubular Goods

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。

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 .

自然电位测井是测量井中由于地层水矿化度与泥浆滤液矿化度不同所产生的自然电位场的一种测井方法。

Spontaneous potential ( SP ) well logging is one of the oldest well logging , which is very important for lithology recognition , permeability estimation and sediment analysis .

利用多孔介质毛管模型建立了孔隙饱和介质电化学传质动力学理论，推导出泥岩的自然电位测井响应方程。

According to the capillary model of porous media , the theory of electrochemistry transfer dynamics is developed up , and the log response equation for spontaneous potential is deduced .

以大庆油田砂岩渗透性油藏为例，从砂岩油藏自然电位测井原理出发，依据过滤电位形成机理建立了通用的压力解释数学模型，应用测井数据对油层进行孔隙压力解释。

Based on the principle of self potential logging , this paper took the sand reservoir of Daqing oilfield as example and established the mathematical model for pore pressure interpretation .

并针对自然电位测井易受环境影响而降低其使用价值，将泥浆滤液电阻率校正在统一温度下，导出了自然电位的校正公式，提出了对自然电位进行环境校正的方法。

By means of correcting mud filtrate resistivity under unified temperature , the correction formula is derived , and the method to correct SP log is proposed . As a example .

利用自然电位测井资料确定含油气泥质砂岩地层水电阻率时，必须考虑阳离子交换容量和含油气饱和度的影响。

When determining the resistivity of formation water with SP logs , the influences of the hydrocarbon saturation and the changes of the cation exchange capacity of formation should be taken into account .

目前在地下水污染监测中主要的地球物理方法有：大地电磁法、电阻率测井法、自然电位测井法、动态导体充电法探测和地质雷达探测等。

Current in groundwater pollute monitor the main method of geophysics has : magnetotelluric method , resistivity logging method , spontancous-potential log method , dynamic conductor charge a battery method , geologic radar detection .

克拉玛依油田七区的标准测井资料是指使用标准电极系视电阻率测井、自然电位测井和井径测井，以相同的1：500深度比例尺及相同的横向比例进行测井作业所取得的资料。

The information of Normalized Well Log ( NWL ) in the district No. 7 of Karamay Oilfield means the information acquired by normal apparent resistivity log , spontaneous potential log and caliper log with normalized depth scale of 1:500 and calibration scale .

采用概率成像的方法，对地下空间的点状旋度源进行成像，把概率成像、自然电位测井和向量势理论相结合，给出扫描函数，实现了无界均匀空间中自然电位测井的反演。

Probability tomography is used to imagine the point curl sources in the ground space . Combined probability tomography with SP logging data and vector potential theory , scanning function is figured out to inverse the SP data in infinite and uniform space .

新疆塔北低电阻率油气层成因简析及现场录井识别实例自然电位测井是油层水淹后能够有效识别地层混合液电阻率信息的测井方法。

Genesis analysis and on-site mud logging identification examples for low-resistivity oil & gas reservoir of Tabei Area of Xinjiang . SP logging is one of logging methods which van effectively distinguish resistivity of mixed liquid in formation after oil layer being water flooding .

自然电位测井是油层水淹后能够有效识别地层混合液电阻率信息的测井方法。普通稠油水淹层顶部剩余油水平井技术界限研究&以孤岛中二北Ng5为例

SP logging is one of logging methods which van effectively distinguish resistivity of mixed liquid in formation after oil layer being water flooding . Technology limit research on exploiting remaining oil using horizontal well on the top of water-out zone in heavy oil reservoirs

根据自然电位测井数据与地层水矿化度之间的关系，在自然电位层厚校正、泥质校正、温度校正及油气影响校正基础上，可较为精确地确定地层水电阻率。

According to the relation of natural potential logging data and reservoir water salinity , based on the layer thickness emendation , slime emendation , temperature emendation and oil & gas effect emendation of natural potential , formation water electrical resistivity can be confirmed accurately .

本文仅利用视电阻率和自然电位两种测井曲线的形态特征研究如何定量判别鄂尔多斯盆地东北部沉积相问题。

This paper studies how to discriminate quantitatively the sedimentary fades in the northeastern part of the Ordos Basin using only the shape characteristics information of their apparent resistivity log and spontaneous potential log .