Petroleum drilling stabilizer

The utility model relates to the field of petroleum drilling, in particular to a petroleum drilling stabilizer, and aims to solve the technical problem that a stabilizer in the prior art cannot be in contact with a well wall and cannot play a stabilizing role under the vibration effect generated by drilling at the moment. Comprising a drill rod 1, a body 2, a stabilizing body 3, a drainage piece 4, a liquid distribution opening 5, a pressure chamber 6, a fixing cavity 7 and an auxiliary stabilizing body 8, when the stabilizing body moves to the irregular drilling position, the auxiliary stabilizing body pops up under the pressure effect of drilling fluid to make contact with the hole wall, vibration of the drill rod is relieved, the drilling direction is stabilized, the supporting force of the auxiliary stabilizing body is increased by arranging a spring, and the stabilizing effect is better. 本实用新型涉及一种石油钻井领域，尤其涉及一种石油钻井稳定器，本实用新型为了解决现有技术的稳定器总会有接触不到井壁的情况，此时在钻井产生的震动作用下，稳定器就无法起到稳定作用的技术问题，包括：钻杆1、本体2、稳定体3、引流片4、分液口5、