drilling under pressure 中文意思是什麼
drilling under pressure
解釋
回壓鉆進-
The engineering drilling machine of kp2200 type is double layers bottom plate, and drives through hydraulic pressure, upper plate can move fore and aft on the lower plate, the drill power leans back under the action of oil cylinder, the lower plate can put the drilling tool within 2. 5 meters into well hole without moving, it is convenient and reliable, and ensures construction quality
Kp2200型工程鉆機為雙層底盤，通過液壓驅動，上盤可在下盤上前後移動，鉆塔在油缸的作用下後仰，下盤不動即可把2 . 2米以內的鉆具放入井孔內，方便可靠，保證施工質量。 -
Under balance pressure drilling technology and coalbed gas development
欠平衡鉆井技術與煤層氣開發 -
This paper introduces the development situation, basic concepts and mathematical model of bottomhole pressure about under - balanced drilling technology
較詳細地論述了欠平衡鉆井技術的發展概況，基本概念和井底壓力的數學模型。 -
Under the function of big pressure and dynamic load, the grains may be moved which may cause the soil body distortion. at present, the relatively ripe methods of drill in gravel layer are mostly double - wall drill pipe reverse circulation drilling, auger stem breast wall drilling and down - the - hole hammer follow down drilling
論文根據jsl ? 30型礫石鉆機潛孔錘同心跟管鉆具結構，採用程序計算得到了鉆桿內各深度處壓力分佈、鉆頭壓力降、環形空間壓力分佈及空氣流速分佈。 -
The dada acquisition and pressure survey methods during under - balanced drilling are researched, which provide the foundation for obtaining training samples for neural network
研究了欠平衡鉆井數據採集和壓力測量方法，為神經網路獲取訓練樣本奠定了基礎。 -
This product is under pressure, small bending radius, the anti - fatigue properties of strong, long life and other characteristics, widely used in metallurgical casting side, oil drilling, engineering machinery, and various types of hydraulic mining extraction machinery
本產品具有承受壓力高、彎曲半徑小、抗疲勞性能強、使用壽命長等特點，廣泛應用於冶金邊鑄、石油鉆探、工程機械、礦山採掘及各類液壓機械等。 -
The prediction of bottomhole pressure is very important during petroleum exploring and drilling. it can provide the support and guarantee for the safe and effective performance of under - balanced drilling
在石油勘探及鉆井過程中，對井底壓力預測顯得十分重要，它可為欠平衡鉆井的安全和有效實施提供保證。 -
On the basis of above work, the neural network model of bottomhole pressure during under - balanced drilling is established, including determining network structure by using empirical method, adjusting the network weight using study algorithm
在此基礎上，建立了欠平衡鉆井井底壓力的神經網路模型，包括用經驗方法確定網路結構，用學習演算法調整網路的權值。 -
Utilize energy method to research crook problem of drilling rod under pressure and act on together, having studied the crooked influence to the drilling rod of torsion emphatically, the theory analyses found that axial load, hole vertex angle and torque are important factors of influence drilling rod crook
利用能量方法研究了壓力和扭矩共同作用下鉆桿的彎曲問題，著重研究了扭矩對鉆桿彎曲的影響，理論分析發現，軸向載荷，鉆孔頂角和扭矩是影響鉆桿彎曲的重要因素。 -
In chapter six, based on the preceding chapters " research, the practicality of the full scale dr i 11 ing simulating test device has been tested by the debugging and the performance test. under simulating drilling conditions, the rock mechanical properties and the bits " dynamical tests are analyzed and set forth specifically. at the same time the effect of bottom pressure difference on the oil field exploration and development has been discussed
第六章在前述分析研究的基礎上，通過對模擬裝置的系統調試及性能測試，驗證了全尺寸鉆井模擬裝置的實用性，在鉆井模擬條件下對巖石的機械性質、牙輪鉆頭動態測試給予了具體的分析闡述，同時還分析探討了井底壓差對油田勘探開發的影illb ，並且為宋深101井的實際施工作業提供了非常有價值的指導參數。
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