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为了探测石油和天然气,自从1977年以来,在电法方面进行了广泛的研究,提出了各自的有意义的结果,但其中有些是和石油工业界人士最近的调查结果不一致的。在逆掩断层带,帕拉道克斯盆地,温德河盆地,波德河盆地,盆地和山脉区,丹佛盆地和得克萨斯狭长地带等地区条件下所作的种种调查,得出了下列结果:所测得的真正的激发极化异常还不到我们在已知油气田上调查总数的30％,明显的视电阻率异常则占不到实例总数的60％。然而,如果从野外测量结果的总体中将激发极化和均匀大地的理论响应消除后,将测得的谱的剩余部分称作剩余电磁或REM资料,则它在92％的调查地区中给出了真实的与油气相关的异常。REM的穿透深度正比于趋肤深度,而视电阻率和激发极化法的穿透深度则决定于标准的电流传导深度,电子计算机数字模拟和野外测量结果都指示REM的最大有效穿透深度是偶极距的四倍到六倍。在犹他州圣胡安县,位于帕拉道克斯断层和褶皱区中的里斯本油田证明了是一个油气异常的好例子。生油层的平均深度是8500英尺,上覆的帕拉道克斯盐岩的厚度在3000到7000英尺之间变化,形成了一个特别有趣的探测目标。调查的结果同在其它油田上收集到的资料一致,即激发极化的资料是没有说服力的,电阻率资料显示了良好的异常,REM资料显示了与油气的
In order to detect oil and natural gas, extensive studies have been conducted on electricity law since 1977, with their own meaningful results, but some of them are inconsistent with the findings of the most recent survey by oil industry people. Various surveys conducted in areas such as the Tectonic Belt, the Palados Basin, the Wind River Basin, the Pod River Basin, the Basin and Range, the Denver Basin and the Texas Strip have the following results: The true anomalous excitation polarization is less than 30% of the total number of our surveys on known oil and gas fields. The apparent apparent resistivity anomaly does not account for 60% of the total number of cases. However, the remainder of the measured spectrum is referred to as residual EM or REM data after 92% of the surveyed areas are given if the theoretical responses of the excited polarization and the uniform ground are eliminated from the population of field measurements The real oil and gas-related anomalies. The penetration depth of REM is proportional to the skin depth, and the apparent depth of penetration and depth of apparent resistivity and polarization are determined by the standard depth of current conduction. Both the computer numerical simulation and the field measurements indicate the maximum effective penetration depth of REM Diphthong four times to six times. In San Juan County, Utah, the Lisbon oilfield in the fault and fold zone of the Pradaxis proves to be a good example of a hydrocarbon anomaly. The average depth of the pay zone is 8,500 feet, and the thickness of the overlying Palados salt rock varies between 3,000 and 7,000 feet, creating a particularly interesting exploration target. The results of the survey are consistent with the data collected on other fields, that is, the data that excites polarization is inconclusive, the resistivity data show good anomalies, and the REM data show a correlation with hydrocarbon