问题:顶部驱动主要有那三个部分组成导轨滑道架总成、()、钻杆上卸扣总成...
Friday, September 16, 2022
问题:金刚石是迄今人类在地球上发现的()的矿物。A、最硬B、最贵C、最美丽D、最抗砸...
Sunday, March 24, 2024
问题:单吸单级卧式离心泵在石油矿场主要用于()或作为砂泵、灌注泵。...
Friday, September 16, 2022
Friday, September 16, 2022
问题:中国石化HSE目标之一是通过对员工进行宣传教育和培训,不断促进提...
Monday, September 12, 2022
问题:钻进过程中,钻压的调整及钻具的送进主要是由()控制的。...
Friday, September 16, 2022
问题:金属密封的优点:更适合于硫化氢环境,密封性能好、寿命长;缺点:安...
Friday, September 16, 2022
Monday, September 12, 2022
问题:工业用火现场条件发生变化或中途停工()及以上,应再次对现场安全措...
Monday, September 12, 2022
Sunday, September 11, 2022
Friday, September 16, 2022
Monday, September 12, 2022
问题:在井斜较大、缩径的井段,应缓慢下入,若遇阻应先开泵循环,并用低钻...
Friday, September 16, 2022
问题:下油层套管时,操作气葫芦人员在()时,气葫芦绳子容易挂开吊卡活门...
Friday, September 16, 2022
Monday, September 12, 2022
Friday, September 16, 2022
Monday, September 12, 2022
问题:高岭石的永久负电荷最多,伊利石的永久负电荷最少,蒙脱石居中。...
Sunday, February 5, 2023
Monday, September 12, 2022
问题:ZJ-45钻机的转盘固定均用()只M48的调节丝杠,在4个方向上对称找正和顶紧。A、4B、8C、12D、16...
Friday, April 18, 2025