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- Meanwhile,the downhole motor and MWD are not affected and wellbore trajectory can be controlled because of the continuous fluid phase flow throughout the bore hole. 同时由于从井口到井底始终存在着连续的液相流,常规井下动力钻具和随钻仪器的性能不受影响,可以进行正常的井眼轨迹控制。
- At the same deviation, the big WOB can be applied to increase the penetration rate in the straight hole. 在防斜效果不变的情况下,可采用较大钻压钻进,大大提高了直井段的机械钻速。
- Moreover, regarding to reducing the longitudinal vibration of bottom string in straight hole, there is the problem of optimization grouping between WOB and rotary speed. 另外,在减小直井底部钻柱纵向振动的问题上存在钻压与转速的优化组合。
- Capability of produce: injection rubber by import machine, milling rotor by abroad system, complete motor test system, downhole motor assembly and adjust. 工艺:进口设备注胶,国外系统铣转子,马达整机实验台,自动化钻具组装调试。
- The paper presents the calculation method of build-up rate of downhole motor with two bent subs in drilling short-radius horizontal wells, based on finite element reiteration. 提出了以有限元动坐标迭代法为基础的短半径水平并双弯马达造斜率的计算方法,并给出了大曲率井眼中钻头侧向力的二重非线性数值解。
- Location and spacing of sucker rod centralizers in straight holes. 直井抽油杆柱扶正器安装位置及安装间距。
- The extension drill rod which can be used for higher capacity drill,the drill hole can be extended to sezeral meetrs, when drilling the straight hole,the core lifter can help coring. 选用加长钻杆于较大能力的钻机,可将钻孔延深至数米,钻垂直孔时,可采用取芯器配合取芯。
- In the straight hole,the complex metallic ion polymer drilling fluid system was used.The drilling fluid filtrate was controlled well,and the formation hydrating and swelling were prevented. 该井直井段采用复合金属离子聚合物钻井液体系,较好地控制了钻井液滤失量,减少了滤液渗入地层,防止了地层水化膨胀。
- DPMA-1 can also be used to monitor the changes in the temperature and pressure of drilling fluid, so as help to judge the working condition of the downhole motor, and drilling fluid circulation resistance , etc. 该仪器在检测井斜的同时 ,还可监视钻井液温度、压力的变化 ,由此判断井底机具的工况、钻井液循环时的沿程阻力等。
- According to the experimental device designed on the basis of the principle of similitude, the longitudinal vibration characteristics of bottom string in straight hole were investigated. 摘要为了了解直井眼中底部钻柱的纵向振动特性,利用根据相似理论设计出的钻柱动力学模拟试验装置,对不同参数组合下的钟摆钻具组合纵向振动特性进行了模拟实验研究。
- A series of advanced technologies are applied,e.g.,DC electric rig,stepless speed regulation pump and top drive system,steerable drilling system,powerful downhole motor,and advanced drill bit. 该井采用了直流电动钻机、无级调速泵及顶部驱动装置、导向钻井系统、大功率优质马达、优质钻头等一系列先进工艺,经科学论证与施工,取得了满意的效果。
- All third party equipment, such as downhole motors, MWD, stabilisers, drilling jars, must have detailed fishing diagram available. 第三方的钻具如井下马达、MWD、扶正器、震击器必须有详细的打捞图。
- His strength in a crisis is an ace in the hole. 临危不惧是他的看家本领。
- Evaluation of formation drill-ability anisotropy has important effect for preventing deviation of straight holes and planning drilling trajectories of directional wells. 地层可钻性各向异性评价在直井防斜以及定向井井眼轨迹控制中具有重要的意义。
- Keep straight on until you get to the church. 一直朝前走就走到教堂了。
- It's three blocks straight ahead. 一直往前走过三个街区就是。
- He chiseled a hole in the door to fit a new lock. 他在门上凿了个孔,以便装一把新锁。
- She gave it to me straight from the shoulder. 她坦诚地批评我。
- The bird picked a hole in the ice with its beak. 那鸟在冰上啄出了一个洞。
- The child has picked a hole in his new jumper. 孩子的新毛衣上勾了一个洞。