| The Xinjiang oil field corporation constructs two desert oil fields at the end of the century, They are CaiNan oil field and Shi Nan oil field , Going from place to place grit thickness about is 300 meters , The dune that undulates down over the terrain is give priority to , Highly be living between 2-5 0's rice , The petroleum pipeline string in oil field is construct on the basis of the relief , The secret pipes and power lines is get over that much dunes go into crude oil and handle the stop , Oil is living , Gas , Below composite supply of the water situation , Two types of particular appearance of effect petroleum pipeline string failure-free operation happen.On first of all expressing on the dune that old and young undulate the slope length , The inside corruption perforate of pipes and power lines base is very much much , But being living , this kind of appearance seldom happens placid Duan Que of Duan Ji geting off the slope , Etcing the pit that the form expressed to channel groove contour shape corrodes , It is the linear distribution , Adopt to calculate that the drug is increaseed in the stop in order that afterwards guarding against the step etcing at the extremity at tip , Also not not resolving etchs the problem ; Secondly expressing at the transporting which gas the petroleum pipeline string in , The liquid blendes in the supply process , It is taller that the extremity at tip calculates single well of stop and manufacture obstruction , Being close to even to the extent that overtakees the secure operation pressure of low pressure pipes and power lines (1.6MPa), Reach the crude oil yield safely and all creates the harmful effect to the system , Moreover takes constructs the rule that the pipes and power lines flows separately to cut down pressure step queen , It is invalid completely that the field is verified , Yet not resolve the high problem of extremity obstruction .This type of appearance is living , and merely happen at the block in desert in the Xinjiang oil field , And is living to put up putting ino production queen short-term inner place in immediate future creates the grave result .Course is investigated , The phase fruit that the original was acquireed is : Theterrain anthology fiing to cause to undulate is beaten why the artery comes into being a length high frequency on slope and etchs to step-down the multiple track bridging that the invalid reason is "The terrain slugging effect "Action coming into being , "The terrain slugging effect "Either acutely geing up the stopper is the fresh terminology in the heterogeneous fluid medium kinetics , Only point out to create going from place to place Duan Sai who obstructs of Guan Lu to speedup abruptly going from place to placely but takes shape stopper shape and runs the going from place to place process of this simultaneous , The original specially etchs that the mechanism and the action means possess clear-cuter knowledge to such ; At the same time , The terrain is get up the stopper the person who creates intense snaps the stopper runs except for partly is living that specially designated pipeline possess unusual appearance etcing to express , The flow pattern of undulation Guan Lu is living , Run appearance , Is getting near to drop and so on the respect alternation regular pattern also distinct level pipeline, Baseding on , level pipeline is in the wrong according to the base , Being living is takeed below the invalid situation of bridging decompression step , The problem determination means that the original adjust below undulation pipeline this specially designated term intensely snaping the stopper to run has also been carried on field researching initially , Moreover the success implement field verifying . How carry on the design to this type of particular block that havees the representative undulation terrain in the desert oil field in view of the quality , Administration , Tremendous help be able to be supplyd undoubtedly , Avert recommiting the same error in the days to come .Is being baseding on such one kind of knowledge , Th... |
PDF Full Text Request