Abstract:

Use radon measurement to explore oil and gas, one have to improve the sampling device and test conditions.The added sealing rubber ring in the improved sampler could not only act as a sealing but also locate casing pipe;the inprovement of test conditions include prolonging the sampling time and increasing well-hole depth from 35 cm to 155 cm. The improved device was used to test Wen-31 oil pool,the counting rate was more than 80 pulse/min. The cyclic anomaly was clearly reflected in plan,and negative anomaly was also measured.

Key words: ²¹⁸Po, radon measurement, improvement, Wen-31 oil pool