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1)  deepwater cementing
深水固井
1.
Properties and hydration mechanism of deepwater cementing system
深水固井水泥性能及水化机理
2.
Conventional accelerating agents for deepwater cementing are often inorganic salts,which bring a lot of reaction heat that threats the stability of the hydrate in deepwater.
常规的用于深水固井的水泥浆促凝剂多为无机盐类,给水泥浆带来大量的反应热,威胁到水合物层的稳定性。
2)  deep well cementing
深井固井
3)  deep well
深井,深水井
4)  deep water drilling
深水钻井
1.
Analysis of axial load influence on mechanics characteristic of ocean deep water drilling riser;
轴向载荷对海洋深水钻井隔水管力学特性的影响分析
2.
Achievements on deep water drilling fluid research;
海洋深水钻井钻井液研究进展
3.
As more and more oil and gas resources are discovered in deepwater worldwide,the deep water drilling has become more and more in recent years.
从目前国内外深水钻井实践出发,对深水的钻井设备、定位系统、井身结构设计、双梯度钻井技术、喷射下导管技术、动态压井钻井技术、随钻环空压力监测、钻井液和固井工艺技术和钻井隔水管及防喷器系统等关键技术进行了阐述,对深水的钻井设计和施工进一步向深水钻井领域发展具有重要导向作用。
5)  deepwater drilling
深水钻井
1.
Effect of buoyancy modules on main performances of deepwater drilling riser;
浮力块对深水钻井隔水管主要性能的影响
2.
Mechanical stability analysis of subsea wellhead for deepwater drilling;
深水钻井水下井口力学稳定性分析
3.
Prediction of gas hydrate formation region in the wellbore of deepwater drilling;
深水钻井井筒中天然气水合物生成区域预测
6)  deepwater wells
深水井
1.
The titled LTLD cement slurry is developed for cementing deepwater wells at offshore oil/gas reservoirs and characterized by combinational physical/chemical way of foaming by N_2,that is,double gas filling and the majority of additives used is synthesized specially.
题示低温低密度水泥浆用于海洋油藏深水井固井,填充的惰性气体气泡用物理和化学方法共同产生,所用外加剂大部分是专门研制的。
补充资料:固井


固井
sealing of drop-shaft bottom to rock

  gUJ,ng固井(sealing of drop一shaft bottom to roek)在竖井沉井法掘进中将沉井井筒永久固定的技术。当沉井下沉达到设计深度后,为防止井筒继续下沉或出现位移,需采取加强井壁和土帮的固定措施,以隔离井筒与井外含水层的水力联系,这是沉井施工的最后一道工序。固井采取的主要措施是联接套井与沉井的上口,井筒壁后注浆以增加侧面阻力,砌筑沉井基座以增加正面阻力,最终使井筒保持稳固。 在固井之前,若刃脚坐落的基岩上面无隔水粘土层,则需构筑封底止水垫,以防止井内排水后,发生涌砂冒泥或突水事故。封底后,首先要清除套井与沉井之间的泥浆,然后在其中浇灌片石混凝土,同时将沉井上口的钢筋与套井锁口的钢筋焊接好,并浇灌混凝土,使沉井与套井连成整体。最后,排除井内积水,进行壁后注浆。一般采用分段下行、分段内上行式注浆方法。当采用泥浆护壁减阻时,要先注清水,把泥浆置换出来后,再注水泥浆。井底筑有止水垫时,要进行工作面预注浆。待浆液凝固后,破除封底止水垫,在基岩中砌筑沉井基座。待基座砌好,沉井施工结束,即转入井筒普通法掘进。 (石达民)
  
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