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Flow of Polymer Solution Through Zonal Injection Allocation of Cylindrical Cavity with Nozzle and Jet Target

Author: SongXingLiang
Tutor: CuiHaiQing；PeiXiaoHan
School: Daqing Petroleum Institute
Course: Oil and Gas Field Development Project
Keywords: Polymer solution The nozzle - jet target Stratified injection allocation Criterion equation Pressure drop Viscosity loss Multiple linear regression
CLC: TE357.46
Type: Master's thesis
Year: 2006
Downloads: 67
Quote: 1
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Abstract


Polymer flooding is one of the measures of the high water content of the Daqing Oilfield late to maintain the sustainable development of oilfield technology . Daqing oilfield reservoir heterogeneity is generally more serious , polymer flooding process using the stratified injection allocation technology to solve by the general injection layer caused conflicts . Dispensing technology polymer injection , due to the different strata injection allocation requirements , the need to use stratified injection allocation parameters to adjust the flow of the injected polymer solution . To solve this problem , a new type of layered cylindrical chamber with nozzle - jet target injection allocation came into being. Cylindrical chamber with nozzle - jet target stratified injection allocation by adjusting the diameter of the nozzle and the target distance to change the pressure drop and viscosity loss of polymer solution flows through this injection allocation , to comply with the requirements of the injection allocation . In this paper, can be regarded as a power law fluid polymer solution in a cylindrical chamber with a nozzle - jet target layered with injector flow , the diameter of the nozzle and the target distance changes influence of the pressure drop , flow rate and viscosity loss were studied. Based on the theory of dimensional analysis , the polymer solution can be regarded as a power law fluid through the indoor simulation experiments , were measured with a nozzle flow - the target cylinder chamber stratified jet injection allocation criterion equation ; polymer solution in a cylindrical chamber with a nozzle - jet target different nozzle diameters and different target from the case layered with the injector flow parameters ; preparation of a multiple linear regression using the least squares method and Gaussian elimination principle procedures; using multiple linear regression procedures for regression analysis , regression formula for the pressure drop of polymer solution flow in a cylindrical chamber with a nozzle - jet target stratified injection allocation and viscosity loss regression formula ; by regression the formulas were drawn and the pressure drop and flow rate , standoff distance and nozzle diameter curve , the curve of viscosity loss rate and flow rate, standoff distance and nozzle diameter , and the variation of the pressure drop curve the viscosity loss rate curve analysis . Stratified injection allocation the research cylindrical chamber with nozzle - jet target geometry and flow parameters optimized design has theoretical significance .

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CLC: > Industrial Technology > Oil and gas industry > Oil and gas development and mining > Production Engineering > Enhanced oil recovery and maintain reservoir pressure (secondary and tertiary oil recovery ) > Thermal, miscible , Chemical Oil Recovery (EOR EOR ) > Chemical flooding
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