摘要
运用声发射凯塞尔效应法,对宝中、宝北三口井4组岩样的地应力进行了测试,并对宝浪油田地应力大小以及最大主应力方向进行了计算和分析。根据破裂理论和大量岩石力学实验以及实测对比结果表明,钻孔崩落的方向与最小水平主应力方向一致,最大水平主应力方向总的趋势是:宝中区块为NE60±5度左右,宝北区块为NE50±10度左右。
Earth stress measurements are performed on 4 groups of rock samples from 3 wells in Baozhong and Bao-bei blocks. The earth stress and the maximum main stress direction in Baolang oilfield are calculated and analyzed. A comparison of the rock mechanics experiment results and the real measurement results shows that the caving direction of drill hole coincides with the minimum horizontal main stress. The maximum horizontal main stress in Baozhong block is approximately NE60° ± 5°, while that in Baobei block is approximately NE50° ± 10°.
出处
《河南石油》
2003年第4期42-44,共3页
Henan Petroleum
关键词
宝浪油田
地应力
主应力
最大主应力方向
Baolang oilfield, earth stress, main stress, direction of maximum main stress
