drill stem 中文意思是什麼

drill stem 解釋
頓鍛模鉆桿
  • drill : n 1 【軍事】操練，演習；（嚴格而有系統的）盤練，訓練；〈英口〉教官。2 【機械工程】鋼鉆，鉆頭；鉆...
  • stem : STEM ＝Scanning transmission electron microscope 掃描透射式電子顯微鏡。n 1 （草木的）莖，干，梗；...
  1. Field operation shows that, by using the hydrodynamic propulsor, not only the penetration rate is increased, the vibration of the bit and drill stem is reduced as well, thereby the service life of the bit is extended

    1995 - 1998年井下液力推進器在大港油田等地區不同區塊20餘口井上施工的實踐證明，使用這種推進器不但可以提高機械鉆速，而且減輕了鉆頭和鉆桿的振動，進而延長了鉆頭壽命。
  2. Compared with the mud on wall form hole technology, clash stake technology or vibration sink pipe technology used in complex foundation stake forming, it has advantages of no vibration, no pollution, and no noise. in addition, since the concrete pressed into the drill stem sent vibration free concrete to the pump, so it is eas y to ensure the quality of the stake body. compared with the mud on wall and dry work form hole technology, the side obstruction and end obstruction of screw drill press concrete stake have all been accordingly improved, the weight bearing is better, and the transmutation of the complex foundation is less

    其中，螺旋鉆孔壓灌混凝土成樁技術自研製以來，已在多項復合地基工程中進行了應用，較好地解決了軟弱地層成孔困難的問題，適應地質條件范圍廣，成樁速度較快，工期短、工效高；與復合地基成樁時的泥漿護壁成孔工藝、振沖樁工藝或振動沉管工藝施工比較，具有無振動、無污染、無噪音的優點；另外，壓入鉆桿內的混凝土為泵送免振混凝土，因此樁體質量易於保證；與泥漿護壁和干作業成孔工藝相比，螺旋鉆孔壓灌混凝土成樁的側阻和端阻都有相應的提高，樁的承載性能較好，復合地基的變形較小。
  3. Simulation analysis of contact position of drill stem and application of antiwear tool

    鉆柱接觸位置與防磨工具的應用模擬分析
  4. Technology procedure for non - conventional drill stem testing

    非常規地層測試技術規程
  5. Drill - stem subs

    鉆柱轉換接頭
  6. Drill stem tests are taken from some wells almost immediately after drilling and completion operations.

    有些井剛鉆完並進行完井作業后，就立即採取鉆桿測試。
  7. The drill collar is necessary of important drill tool for oil exploration. is main part that make up drill - stem

    鉆鋌是石油鉆采必須的重要鉆具，是構成鉆柱的重要部分。
  8. Petroleum and natural gas industries - rotary drilling equipment - part 1 : rotary drill stem elements iso 10424 - 1 : 2004 ; english version en iso 10424 - 1 : 2004

    石油和天然氣工業.旋轉鉆井設備.第1部分:旋轉鉆桿元
  9. 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。
  10. Petroleum and natural gas industries - rotary drilling equipment - rotary drill stem elements

    石油和天然氣工業.旋轉鉆探設備.旋轉鉆桿構件
  11. Petroleum and natural gas industries - rotary drilling equipment - part 1 : rotary drill stem elements

    石油和天然氣工業.旋轉鉆探設備.第1部分:旋轉鉆桿構件
  12. Pick up drill stem test tool

    提起鉆桿測試工具
  13. Recommended practice for drill stem design and operating limits

    鉆柱設計和操作限度的推薦作法
  14. In production, the technology can provide geologic foundation for objective stratum to take core localization, the drill - stem testing, the well completion work, the well logging interpretation, the well drilling project breakdown processing, and coordinate with other logging methods to carry on the scientific appraisal to the stratum, and has been used widely in exploration and development in jianghan oil region

    在生產實踐中它能夠為目的層取心定位、中途測試、完井作業、測井解釋、處理鉆井工程故障提供地質依據，並與其他錄井方法和測井方法相配合，對地層進行科學化評價，在江漢油區油氣田勘探開發中廣泛運用。
  15. Dynamic simulation of the contact between drill stem and well wall

    鉆柱與井壁接觸的動態模擬分析
  16. Automated centering system for drill stem friction welding machine

    石油鉆桿摩擦焊自動對中系統
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