Affinity gravimeter offers very poor observation data in some oil fields,and themis-ties at intersecting points in final result are often higher than the abnormalrangeabilities which are adopted to detect oil, gas and water.

• 艾菲重力仪在一些油田所测量的实际数据的精度均很差，最终成果在交点上的闭会误差往往大于判断油气水的异常幅值。