Key Technology for Leak Prevention of Igneous Rocks in a Certain Oilfield in Bo Zhong

Abstract

A certain oilfield in Bozhong has experienced multiple volcanic eruptions, with developed fractures in igneous rocks and frequent drilling leaks; In the early stage, 7 out of 8 exploration wells experienced 23 leaks, resulting in losses of over 24 million yuan. In response to the high risk of leaks in the igneous rock development area of this block, based on the concept of geological engineering integration, an innovative key technology for preventing leaks in igneous rocks in a certain oilfield in Bozhong was proposed, with "pre drilling prevention, monitoring while drilling, and rapid plugging" as the core. Through 30 on-site construction operations, a new operational approach was provided for the problem of leaks in igneous rock formations, effectively reducing drilling risks and costs.