pipe in pipe casing 中文意思是什麼
pipe in pipe casing
解釋
雙層組合套管結構-
Abstract : there is a low - pressure nature gas in the brine well, the casing, well end and pipe are very corrosive because brine is accrued
文摘:鹽井伴生有低壓天然氣，實現加壓采輸后出現氣井套管、井口，輸氣管線被嚴重腐蝕的現狀。 -
( 3 ) the transformation for turbo cycling compressor is designed in both differential pressure seal parts at the inlet and outlet and the connecting construction of the positioning key and turbo cycling compressor casing : replace wave pipe of differential pressure seal parts with asbestos jointing and improve its reliability ; jointing connection of the positioning key and turbo cycling compressor casing has been converted into screw thread connection and avoid the dangers from jointing crack
（ 3 ）從進出口壓差密封部件和定位鍵與外殼間聯接結構兩方面入手，提出了相應的改造方案：將機組進出口壓差的密封部件由波紋管改為石棉填料函，提高了其運行可靠性；將內件周向定位鍵與外殼間的聯接結構由焊接改為螺紋聯接，避免了焊接裂紋引起的安全事故。 -
At present, in casing well logging, ultrasonic imaging well logging tool is mainly used in cement bond appraisal and casing inspection, so as to makes intuitionistic and accurate judgment to the well cementation quality and the casing pipe condition
目前，在套管井測井中，超聲波成像測井儀主要用於水泥膠結評價和套管檢查，以便對固井質量和套管狀況作出直觀準確的判斷。 -
Drilling time will be lasted and lateral force on casing exerted by drill pipe will increase in case of drilling deep well, ultradeep well, high inclined hole, extended reach well and horizontal well, therefore, friction and wear between casing and drill pipe became a severe problem
在深井、超深井、大斜度井、大位移井及水平井中，鉆井時間延長、鉆柱作用在套管上的側向力增高，因此套管和鉆柱的摩擦與磨損問題越來越突出。 -
That causes new problems of construction on making use of or abandon old basis structure. based on the characteristics of the bridge foundation, this paper in detail introduces the design of construction procedures, construction methods and technological process for large temporary structures in foundation construction and driven or pull out steel casing pipe etc, which are seldom meet in common bridge construction. about digging and con struction of foundation piles, dynamic detection method of pile foundation etc. are also introduced and analysized
由於設計的變更，前期已施工的基礎結構與修改後的結構有較大差異，給施工帶來舊基礎利用和廢棄處理等新問題，本文針對該橋的基礎特點，詳細介紹了基礎施工中大型臨時結構、打拔鋼護筒等一般橋梁施工中很少遇到的施工工序的設計、施工和工藝問題，對于基樁的開挖和施工、樁基的動態方法檢測等問題也作了詳細介紹和分析。 -
Thereby, this paper has carried through an in - depth study on wear mechanism between tool joint of drill pipe and casing, problems caused by wear and measures to deal with wear based on researches at home and abroad. the research contents include : in order to reveal mechanism of wear occurred between tool joint and casing, distribution of the contact pressure between the tool joint and casing for different loads was obtained with finite element method. furthermore, the mathematical model of maximum contact pressure and the wear depth on casing was established
所以，本文在國內外研究的基礎上，對鉆桿與套管摩擦磨損的機理、引發的系列問題及其預防措施進行了深入研究，研究內容主要包括：為探討鉆桿接頭與套管摩擦磨損的機理，採用有限元法研究了不同載荷下接頭與套管之間接觸壓力的分佈規律，並建立了最大接觸壓力與磨損量的數學模型。
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