1958年研制成功的JD-581型多线式自动井下电测仪已历经30个年头了。自从它问世以来,为我国石油工业的发展发挥了特有的作用,它还广泛应用于煤炭、冶金、水电等部门,为寻找地下宝藏立下了汗马功劳。多线电测仪的诞生,为我国地球物理测井史揭开了新的一页。值此纪念多线电测仪诞生30周年之际,回溯一下它的产生过程是很有意义的。1939年,在著名地球物理学家翁文波先生的指导下,我国开始了地球物理测井工 Developed in 1958, JD-581 multi-line automatic underground electrical measuring instrument has gone through 30 years. Since its emergence, it has played a unique role in the development of China’s oil industry. It has also been widely used in coal, metallurgy, hydropower and other departments to make tremendous contributions in the search for underground treasures. The birth of multi-line electrical measuring instrument opened a new page for the history of geophysical logging in our country. On the occasion of the 30th anniversary of the commemoration of the multi-line electrical measuring instrument, it is very meaningful to go back to the process of its production. In 1939, under the guidance of the famous geophysicist Mr. Weng Wenbo, China began geophysical well logging