Coalbed methane wells are extracted differently from conventional oil and gas fields,and drainage is often used for gas extraction.In the process of drainage and extraction,the combined influence of single or multiple factors makes the whole system less efficient.In order to improve the energy efficiency of coalbed methane well machine mining system,each influencing factor is studied and analyzed,and its influence law is derived and the system energy saving and consumption reduction measures are summarized to provide technical support for the actual production.This paper analyzes the energy conversion process of CBM system,derives the energy loss in each stage of the energy transfer process,and then analyzes the influence of each stage on the energy efficiency of the system,and summarizes the main influencing factors of the energy efficiency of CBM system,i.e.,five parts,namely,electric motor,mechanical structure,pumping pump,pumping rod,coil box and wellbore,and obtains that the motor loss is the main body of energy loss in the whole system operation process.and that motor loss is the main body of energy loss during the operation of the whole system.
关键词
煤层气井/排水采气/能效/影响因素
Key words
Coalbed methane wells/Drainage gas extraction/Energy efficiencym/Influencing factors
维普
万方数据