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Rheomorphic breccia in the middle segment of the pipe, hydrofracturing breccia in the boundary of the pipe and ...

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In the operational aspect, boiling point definition indicates air in the closed balancing pipe is fully discharged; leveling with balancing pipe is a...

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This paper gives some commensurable researches utilizing experiment combining theory. The whole paper consists of the theoretical and experimental researches. The first part consists of the fundamental study of foamed acid, the flowage of foamed acid as a Non-Newton fluid in the pipe and annular pipe, and the technology of acidification using foamed acid; and the experimental study includes the formula experiment of foamed acid, the Rheological behavior of foamed acid, the seepage and divided flow in the corn of foam, and appraisal experiment of foamed acid.

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Sponsored by the Scientific Research Foundation of Harbin Institute of Technology, this dissertation aims to establish microrobot walking in pipe with the diameter of 16mm to 18mm based on abundant of investigation and research work. Different research approaches are implemented, ranging from basis study to unit technology to system. An in-depth research on in-pipe micro locomotive and controller was conducted on the basis of piezoelectric bimorph actuator and the principle of Impact Drive Motion .

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A new anchorage system for girder to obtain pretension stress at section top-edge in middle of span is shown. Based on the research of bi-prestressing beams inside test-room and the test of the prestress bar character, method for calculating the full size gird and choosing section are proposed. A new-style corrugated pipe which is shown in the paper is used, to solve the transformation of compressed thread bar and the contradiction between loss of friction resistance and pumping in pipe.

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It is established a pigging model for the associated gas pipeline, in which instructions have been describe in details about how to compute the pressure in the pigging initial station, the pressure drop along the pipe, and the pressure fall resulted from the friction between the pipeline cleaner and the pipe.

文章建立的油田伴生氣管線清管模型詳細(xì)說(shuō)明了如何計(jì)算清管始發(fā)站輸氣壓力、沿程壓降和清管器與管壁摩擦引起的壓降人人爱人人操人人搞。

In order to improve aspiration-efficiency of the jet aerator, an air-in pipe called inner pipe was set up to add one more aspiration in the aerator muzzle.

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