摘要
新疆塔中地区中上部地层成岩性差、机械钻速快,但易发生钻头泥包、井眼垮塌、缩径等事故。中下部地层灰岩机械钻速低,部分层段有火成岩、沥青砂岩抗研磨性强,易损坏钻头。针对这些技术难点,通过应用精湛的定向技术、长寿命螺杆+高效PDC钻头、优质钻井液、精细控压钻井等钻井提速技术,塔中82-H7井100.22d完钻,二开实钻周期48.8d,在塔中同区块水平井中较好。
In the middle and upper strata of the Tazhong area, the diagenesis of the middle and upper strata in the middle and lower strata is low, and the drilling rate is quick.Asphalt sandstone abrasion resistance, easy to damage the drill.For these technical difficulties, through the application of superb directional technology, long life screw＋high efficiency PDC bit, high-quality drilling fluid, precision pressure drilling drilling and other drilling speed technology, the tower 82-H7 well 100.22d finished drilling, two open drilling cycle 48.8 D, in the tower with the block in the horizontal well is better.
出处
《化工设计通讯》
CAS
2017年第10期220-220,共1页
Chemical Engineering Design Communications
关键词
塔中地区
水平井
精细控压
提速难点
Tazhong area
horizontal well
fine pressure control
speeding difficult
