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一、概况: 在四川钻探裂缝性油气藏时,一般采用泥浆进行钻井。由于泥浆性能不良和泥浆在井筒里形成液柱压力等原因,严重地影响了对油气层的开发,特别是在刚打开气层时,如果用重泥浆压住往下打,就有可能堵死油气层“缝缝洞洞”,影响油气的产量,甚至使油气被压死,这种情况对中低压油气层特别显著。若用轻质洗井液打井,则在遇到高压油气层时又压不住,导致强烈井喷的发生,引起火灾,造成阶级兄弟的伤亡事故和国家财产的严重损失。因此,为了多快好省地发展我国石油工业,彻底暴露和解放油,气层,增加油气产量,我局从1965年开始,集中了部份工人、工程技术人员、领导干部组成三
First, an overview: Drilling fractured reservoirs in Sichuan, the general use of mud drilling. Due to poor mud performance and mud pressure in the wellbore to form liquid column pressure and other reasons, has seriously affected the development of oil and gas layers, especially in the just open the gas layer, if pressed with heavy mud down to fight, it may block Oil and gas “seam cracks” affect the oil and gas production, and even oil and gas were crushed to death, this situation is particularly significant for the low-pressure reservoirs. If light wells are used to drill wells, they will not hold down when encountering high-pressure oil and gas reservoirs, resulting in a strong blowout that will cause a fire and cause fatal class deaths and serious losses to state property. Therefore, in order to develop China’s oil industry more quickly and economically, thoroughly expose and liberate oil and gas layers and increase oil and gas production, our bureau started from 1965 and focused on the composition of some workers, engineers, technicians and leading cadres