Well Effusion Visualization Of Experimental Research

Gas reservoirs can produce water and condensate liquids by gas production. The liquids which could not be promptly discharge timely, can accumulate in the bottom of gas well, and then creates the gas well suspension product. Gas Well how to continuous removal liquid is very important to gas well. Experimental study by established visible experimental bench, uses the compressed air and the water, simulates the gas well fluids continuously removal and load up. Experimental study test parameters includes: wellhead pressure, wellhead temperature, injected gas volumes and liquid volumes, and uses the modernized technology methods (high resolution digital camera, 7.0×10~6 pixel) catches drops actual shape in high-velocity gas. Later we could explore that results match to the Turner module together, by the calculation and contrast analysis to other models which used. In the paper period, completed another experiment the flow rate being zero which particularity in two-phase flow. Author observed its flow pattern and proposed a new mathematical computation model of this physical model.Paper finished works as flows:(1) Uses atomization short festival and liquid film short festival as examples pour into experimental bench, and the compressed air as phase medium, Consideration actual gas wells situation; Uses Lucite achievement to the goal of visible experimental; some advanced instruments used in the experimental bench, such as: pressure transfer, pressure difference transfer, flow meter, microwave liquid level instrument and numerical temperature thermometer. Thus, develops set of visible gas wells in this bench to accumulate the fluid loading up (height is 16m, drift diameter is 40mm).(2) Experiment tests the each dynamics parameter in loading up and continuous removal by contrast analysis through change liquid injection method (drops and film). Photograph actual drop model and analysis results in order to match actual phenomenon.(3)On the different position condition, experiments take the water as the liquid phase to research phenomenon of flow rate being zero. Paper proposed this two-phase flow pattern and hydrodynamics new model. This model computation holdup, this computed result matches to actual instances.(4) Take Zhongyuan Oilfield, Changqing gas field and gas wells in West Sichuan gas field actual production data as examples, with the Turner model, its agreement is better. Meanwhile, Papers takes seven well of western Sichuan gas filed in order to use important parameters for sensitivity analysis to obtain effusion understanding of gas well load up.Research results of this paper is not only supervise to field use continuously removal math model but also useful to optimize allocation, forecast loading up and calculate restore production by gas lift.