| Sulige gas pipeline under the ice blocking state downhole choke position measurement te chnology projects through theoretical studies and actual measurement field tests, carried out th e work to achieve the project’s research goals.In winter, temperatures drop to minus local layer, the gas pipeline is also a corresponding decrease in the temperature, natural gas condenses out more water, some buried relatively shall ow, or particularly low-lying block of ice will form in the pipeline. After the ice blocking gas wells will not work, seriously affecting the natural gas production.The project was first proposed in the domestic application of the principle of the method t o measure the partial pressure of ice blocking the location of natural gas pipeline, has been dec lared a patent. With this technology one operator can complete the determination of a well in just one hour.Divided into the pipeline gas in the pressure tank, will bring out the free water, which can affect measurement accuracy. Reduce the initial pressure in the pipeline, slowing the equilibri um pressure of time can be reduced to bring out the water. Partial pressure found in the bottom of the tank needs to install the drain valve, after each test, the water to be discharged, thus red ucing the measurement error.The partial pressure of the measurement principle of the method can also be used to positi on the marine pipeline hydrate blockage, and any other line is blocked, if there is no pressure i n the line before the measurements needed to raise the pressure within the gas pipeline. In the project proposal, based on the partial pressure measurement technology products, the de termination of ice blocking position, the DC dual-electrode heater plugging, changing the oper ating parameters of winter gas production, increasing pipeline insulation, predict the occurrenc e of ice blocking the formation and conduct systematic research, etc. in-depth problem solving ice block. |
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