UNDERGROUND CABLELESS TEST SYSTEM OF OIL WELL

摘要

An underground cableless test system of an oil well comprises a wireless test device and a self-generating device. The wireless test device comprises an underground tester (2), a sensor group (11) disposed on the underground tester (2), an underground testing end circuit (3) connected with the sensor group (11), and an electromagnetic-wave emitting device (17) connected with the underground testing end circuit (3). The self-generating device comprises: a non-magnetic oil tube (15) connected at an upper end of a non-magnetic support barrel (4), a coil group (6) winding around the non-magnetic oil tube (15) at equal intervals, an electrical energy conversion device (16) connected with the underground testing end circuit (3), the sensor group (11) and the electromagnetic-wave emitting device (17), and a magnetic sucker rod connected with a pumping unit (10) and provided with a sucker rod (14). The underground tester (2) is provided with the sensor group (11), the underground testing end circuit (3) and the electromagnetic-wave emitting device (17), cableless direct reading and testing of underground production data of the pumping unit (10) is implemented, thereby solving problems of high costs and difficult construction in the prior art.