在地质部物探研究所的配合下,对使用地面地位法测压裂裂缝方位进行了初步探讨。室内模拟实验和现场试验均取得一定成果。实验中,假设地层为一无限大的均匀介质,以两井的套管分别作为供电电极向地层供电,测量电位梯度值,分析、计算处理后可判断压裂裂缝方位及延伸长度。实验证明,该方法简单可靠,成功率较高,可作为认识油田开发情况的新手段进一步深入研究。 With the cooperation of Institute of Geophysical Prospecting, the ground position method was used to measure the fracturing orientation. Indoor simulation experiments and field tests have achieved some results. In the experiment, it is assumed that the formation is an infinite homogeneous medium. The casing of two wells are respectively used as power supply electrodes to supply power to the formation. The potential gradient value is measured. After analysis and calculation, the azimuth and the extension of fracture can be judged. Experiments show that the method is simple and reliable and has a high success rate. It can be further studied as a new means of understanding the development of oilfields.