特殊地质地形下定向钻穿江工程设计探讨
|
摘要
以高压天然气管道定向钻穿越浙江衢州常山港和江山港的工程为例,在卵(砾)石地质和起伏地形等影响下,采取了基坑开挖、预设套管、分段接管和钻机调度等一系列有效措施,有效降低了工程风险,完成了管道定向穿越,从而使衢州市天然气利用工程顺利实施。
Taking the directional drilling of high-pressure natural gas pipeline as an example, which goes through Changshan Port and Jiangshan Port in Quzhou City, Zhejiang Province, a series of effective measures such as foundation pit excavation, preset casing, sectional pipe connection and drilling rig dispatch have been adopted under the influence of egg(gravel) geology and undulating terrain. These methods effectively reduce the project risk and complete directional pipeline crossing, thus make the natural gas utilization project carried out smoothly in Quzhou City.
Taking the directional drilling of high-pressure natural gas pipeline as an example, which goes through Changshan Port and Jiangshan Port in Quzhou City, Zhejiang Province, a series of effective measures such as foundation pit excavation, preset casing, sectional pipe connection and drilling rig dispatch have been adopted under the influence of egg(gravel) geology and undulating terrain. These methods effectively reduce the project risk and complete directional pipeline crossing, thus make the natural gas utilization project carried out smoothly in Quzhou City.
引文