吐哈油田核磁共振录井影响因素分析及应对方法浅谈

PROBE INTO ANALYSIS OF INFLUENCING FACTORS FO NUCLEAR MAGNETIC RESONANCE LOGGING TECHNOLOGY IN TUHA OILFIELD AND ITS SOLUTION

核磁共振录井分析技术在吐哈油田投入使用以来,应用效果一直较差,为了弄清楚核磁共振物性分析准确性的原因,我们作了一系列基础平行实验,对核磁共振分析参数的准确性、适用性进行深入分析,主要对山前带不同区块、不同岩性的岩屑、岩心样品进行分析、归纳、总结,通过大量实验发现如不同扫描次数、样品浸泡后的放置时间等十大主要因素影响核磁共振录井分析的准确性,并针对存在的各种影响因素,提出了具体的应对方法。

The application effect of Nuclear Magnetic Resonance logging analysis technology has not got into work efficaciously since it was introduced and put into use to Tuha oilfield.In order to make clear the accurate principle of Nuclear Magnetic Resonance physical properties analysis,we have done series of basic parallel experiments to make a further analysis of accuracy and applicability through quite lots of experiments to know the ten key influences of Nuclear Magnetic Resonance analytical accuracy such as different scanning frequency,standing time after sample soaking etc.,especially for a thorough analyzing,concluding and summarizing of different mountain front blocks,different debris and core samples of different lithologic character.In the light of different varieties of influencing factors,specific solutions are put forward.