查询词典 drilling

It is considered that fatigue crack is early produced on drill pipes, because the vibration load of drilling tools in air drilling is more severe than in mud drilling. Fatigue cracks easily occur under alternating vibration. Because the current wellhead detecting instruments can not be used to reflect the change of pump pressure produced after drill pipe piercement timely and accurately, effective measures can not be taken in time to prevent the expansion of fatigue cracks. As a result, drill pipe fracture accidents occur.

失效分析表明，钻杆属于早期疲劳断裂，断裂主要原因是在空气钻井过程中钻具受到的震动载荷远大于钻井液钻井过程中的震动载荷，在交变的震动载荷作用下，钻具容易产生疲劳裂纹；由于现有的井口检测仪表不能精确及时反映钻杆刺穿之后产生的泵压变化，无法及时采取预防措施，疲劳裂纹不断扩展，最终导致了钻杆断裂失效。

Underbalanced drilling ; horizontal well ; low density drilling fluid ; rotary geosteering ; casing valve ; PDC bit ; multilateral well ; EM-MWD ; water-in-oil drilling fluid

欠平衡；水平井；钻井液；套管阀； PDC钻头；分支井；电磁波随钻地质导向

Affiliated companies, mainly engaged in machine tool and machine tool attachment and sale of products, main products have Evertop Series multi-axis drilling, EVERTOP gantry drilling machine and special drilling machine series, GLODEN GOOSE drill chucks, tap chucks series.

本公司属台湾鑫长虹实业有限公司的下属公司，主要从事机床及机床附件产品的生产及销售，主要产品有EVERTOP多轴钻孔器系列，EVERTOP龙门钻床及专用钻孔机系列，GLODEN GOOSE钻夹头，丝锥夹头系列。

Jiangsu, Hangzhou office's main agent Evertop Series multi-axis drilling, EVERTOP gantry drilling machine and special drilling machine series, GLODEN GOOSE drill chucks, tap chucks series.

杭州贝克机械有限公司江苏办事处主要代理EVERTOP多轴钻孔器系列，EVERTOP龙门钻床及专用钻孔机系列，GLODEN GOOSE钻夹头，丝锥夹头系列。

According to the main equipment of Wei 12-1 workover rig and drilling basis data of adjustment well, the hook load and torque of drill string are found out and a new drilling string is presented by using the torque and drag analysis model and calculating software, on which depend to calculate and evaluate the capacity of main drilling equipment of Wei 12-1 workover rig , such as derrick, drawworks, and rotary table, as well as hoisting equipment (traveling block, hook and swivel) and drill line etc.

根据涠12－1修井机主要配套设备和钻调整井的钻井基础数据，运用钻柱摩阻的计算模型，对侧钻过程中钻柱的摩阻/扭矩进行分析计算，提出新的钻具组合，计算大钩载荷及扭矩载荷，并根据计算出的大钩载荷及扭矩载荷，对平台修井机主要钻井设备井架、绞车、转盘、提升设备、钻井大绳等的承载能力进行分析计算，得出分析研究结论，并提出改造的具体思路及相关配套技术的实施方案。

Through studying mechanism of drilling string failure in the action of interaction of cyclicstresses and corrosion, we find fracture source is accord with pitting corrosion inside surface ofdrilling string, crack from pitting corrosion lead to drilling string failure, the process of drillingstring failure is new drilling string → corrosion pit forming and crack initiation → corrosionfatigue crack propagation→piercement or fracture.

通过研究在钻柱交变应力和腐蚀的交互作用下的机理发现，腐蚀疲劳裂纹源与钻杆内壁蚀坑对应，蚀坑萌生裂纹造成钻柱失效，钻柱腐蚀疲劳破坏过程归结为：新钻杆—蚀坑形成及裂纹萌生—裂纹扩展—刺穿和断裂。

The Company was founded in 1996, is in the original Tengzhou first machine tool works formed the basis of restructuring, is a company specializing in the production of milling, drilling, drilling and milling, radial drilling, shearing machine, bending machine of the modern enterprise.

本公司成立于1996年，是在原滕州第一机床厂基础上改制而成的，是一家专业生产铣、钻、钻铣、摇臂钻、剪板机、折弯机的现代化企业。

A ground system was designed to separate drilling cuttings from gas in gas drilling. The system is composed of two-stage series-wound cyclone separators and two filters. The high-cost drilling gas purified by this system can be recovered and recycled.

根据气体钻井的特点，设计了由两级串联的旋风分离器与两台过滤器组成的气体钻井地面分离系统，对成本较高的气体钻井介质进行回收和循环利用。

In order to safe and fast drilling in creeping salt bed in S84 Well, some technological practices were adopted, such as unsaturated salt water drilling fluid system, measurement technique of formation creeping rate and homoion effect technique, which can solve some problems during drilling operations in creeping salt beds.

S8 4井在钻进过程中遇到塑性蠕动非常严重的盐膏层，为安全快速钻进，采取了应用欠饱和盐水钻井液体系、地层蠕动速率测定技术、同离子效应技术等工艺措施，较好地解决了该井盐膏层钻井存在的一些问题，为日后钻穿盐膏层提供了借

The company has strong product development strength, internal combustion series of rock-drilling machine, electric drilling machine, pneumatic rock drill, electric rock drilling, rice and wheat combine harvesters and so is my company's independent development.

公司有较强的产品研发实力，系列内燃凿岩机、电动凿岩机、气动凿岩机、电动岩石钻、稻麦联合收割机等均是我公司自主开发的。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷