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- Intermediate casing damages not only affect normal drilling and exploration progresses, but also induce wellbore abandoning and huge economic losses. 技術套管損壞不但會影響下一步鉆探工作的順利進行,嚴重的還會導致井眼報廢,造成巨大的經濟損失。
- Because the mud density was reduced too much when drilling the fifth spudding wellbore at one time, the intermediate casing was weared out. 沙84井四開井段鉆遇復雜地層,鉆井周期長,多次起下鉆,造成技術套管磨損。
- Surface tests on three water-jet perforating techniques show that hydraulic perforating can penetrate the casing string and the cement sheave rapidly, and it is able t... 3種水力噴射射孔技術的地面試驗研究表明,水力射孔技術可快速射穿套管和水泥環,能夠滿足油水井射孔需要;現場應用表明,大部分油水井見到了明顯的增產增注效果。
- In the finite element model the gap elements are arranged at the ends of girder element of the tube string to simulate the contact and friction among rod, tube and casing string. 通過構建雙層接觸間隙元,建立有限元分析模型,將油管柱、套管柱和抽油桿柱之間作為一個耦合的整體進行有限元力學分析。
- In the curved interval of horizontal well,great frictional resistance can be imposed on the casing string and result in great bending stress due to the bending of the hole. 套管柱在水平井彎曲段隨井眼彎曲產生較大的彎曲應力和受到較大的摩擦阻力,有可能產生強度破壞、密封失效、穩定性破壞而不能下入。
- The character of the intermediate case structure and load is analyzed in detail. Then the states of stress and strain of 38 aerodynamic load states, 141 maneuvering load states and combined load states are calculated with Finite Element Method. 詳細分析了中介機匣的結構特點和載荷特點,用有限元法分別計算了 38 種氣動載荷狀態、141 種機動載荷狀態以及氣動與機動組合載荷狀態下中介機匣的應力、應變狀態。
- Rotation cementing is one of the most advanced technologies in the world which is to make casing string rotate through turntable in order to improve displacement efficiency and cementing quality. 旋轉固井是目前國際上最先進的固井新工藝之一,在固井施工中,通過轉盤帶動套管串旋轉,提高水泥漿的頂替效率,提高固井質量。
- Intermediate casings are under severe wear in the drilling duration of mega-extended-reach wells. 在超大位移井的鉆進過程中,造斜段的技術套管會發生嚴重的磨損問題。
- The caculations and anolyses of examples show that the application of triaxial stress theory in casing string design can take most factors into consideration and obtain the results with high preci... 給出了應用計算機實現套管柱設計的方法和步驟,并編制了相應的計算軟件,結合具體設計實例,通過計算分析表明,應用三軸強度理論進行套管柱設計具有分析全面、計算精度較高的特點。
- Processing technique of intermediate casing 中介機匣加工工藝
- Casing strings are rotated by torque from wellhead during casing drilling. 套管鉆井中套管管柱的旋轉動力來自井口所施加的扭矩。
- Causes of Intermediate Casing Damage and Treatments in Sha 84 Well 沙84井技術套管破損原因分析及處理
- In that case you'll have to clear yourself. 那樣,你只得自行辯白了。
- The turbulator can be used to improve the centralization of the casing strings, to allow the fluid to form spiral flow, as well as to improve the displacement efficiency. 使用旋流扶正器既可提高套管的居中度,又可對流體進行導流而形成螺旋流,還可以提高環空水泥漿對泥漿的頂替效率。
- In this case, let's start earlier. 既然這樣,我們就早點開始。
- Optimizing Casing String Design under Cost Constraint 成本約束條件下的套管柱優化設計
- Analysis and Countermeasures against Intermediate Casing Damages in Deep Wells 勝利油田深井技術套管損壞原因分析及對策研究
- I've passed the intermediate level exam of Japanese. 我已經通過了日語的中級水平考試。
- Nothing short of this could mend the case. 不這樣就不能挽回局面。
- The Supreme Court gave a fair trial to the case. 最高法院對這一案件作出了公正的審判。