The Technology Research In Raising Injection Profile Accuracy And Promoting The Efficiency Of Testing And Adjusting

In order to improve the accuracy of isotope injection section logging data, utilization, andto further improve testing efficiency of water injection wells, providing reliable oilfieldgeological dynamic development of geological dynamic information. Comparing the test dataon site, researching and analysising the causion of the inconsistent data of isotope injectionsection logging and flow testing. Lead isotope testing data with downhole flow meter testingcause more inconsistent information, no sealing the packer, in charge of channeling, strataMacropore outside, staining, injection pressure are a main reason for inconsistent information,series of flow resistance(choked flow) of testing instruments and test equipment calibrationvalues can also be caused by inconsistent information. In the aspect of the injection sectionlogging order of testing, test instrument calibration, flow measurement and calibration ofcontinuous flow in this paper, improving and optimizing injection profile logging testmethods.The essence of the flow of water injecting wells under leveling for different time iscalculating the water in the shaft by the water flow formation and traffic. In General, after thepressure of water distribution can be thought of the formation pressure of formation flow, theinjection time changes, changing the formation pressure. This change led to changes in themouth before the pressure of water distribution and vertical pipe flows has also changed.Indicating curve technique from water injection well on the model of geometry, establishedby the law of conservation of energy within the shaft model, establishing water distribution atthe tap flow calculation of partial loss, through the establishment of Tsui loss function,combination calculated water mouth in the layer of water injection well, and the technologyimplemented in software. This technical correction Tsui loss function under differentgeological conditions to improve their fitness, Tsui loss of function in the software toestablish an independent database, is applied in different geological conditions, according tothe injection of water temperatures, permeability, porosity, surface factor, the originalformation pressure formation of basic information, such as, establish the appropriate dataconnection in the software, software for calculation. Indicating curve testing technology canbe used effectively to improve testing efficiency, reduced testing time.