Research Of Gathering And Transportation Technology On Electricity Heating

The gathering and transportation technology on electricity heating has been developed in recent years, which is a highly new energy saving technology and a new gathering and transportation technique by substituting electricity heating for double pipes mixed into water. Its principle is that the heat energy which is generated by electricity heating belt or tube wrapping the pipeline surface makes the medium inside pipeline heated uniformly by the way of pipeline surface transmitting, which can make the medium reach the temperature requirement of pipeline transporting. Gathering and transportation technology on electricity heating not only can keep oil gathering and transporting production normally and reduce initial investment largely, but also can save energy, protect environment and be easy to do remote control. With the electricity heating technology maturing bit by bit and with the gathering and transportation theory research of electricity heating lucubrating, gathering and transportation on electricity heating will have a wider application.With the research object of gathering and transporting pipelines and ramiform net by electricity heating, this paper studies temperature and pressure fall on gathering and transporting pipelines by electricity heating, and also studies parameter optimizing questions of gathering and transporting net by electricity heating. Firstly, it introduces the technology survey and application status in the oil field of gathering and transportation by electricity heating, then calculates soil temperature field numerically around the gathering and transporting pipelines by electricity heating. With numerically calculating, temperature field around the gathering and transporting pipeline by electricity heating is plotted under steady running. On the basis, axile temperature variety of the gathering and transporting pipeline by electricity heating is analyzed. Ordinary differential equation of axile temperature can be inferred and resolved. Then ramiform gathering and transportation net by electricity heating is optimized and calculated, and the optimizing burying depth, the optimizing pipe radium and economic layer thickness of protecting temperature can be concluded.Lastly, a design and running application program of gathering and transportation net by electricity heating is worked out in Visual Basic tongue. According to the filed practice circs, with the program operating, the total investment of pipe net engineering can save 3.86%, and annual heat expense can reduce 5.87% comparing with optimizing ago. Thereby it can afford certain help for the system optimization design and production management.