The invention relates to a low-permeability gas field gathering and transmitting
system and a gathering and transmitting method of the low-permeability gas field gathering and transmitting
system. The low-permeability gas field gathering and transmitting
system comprises a plurality of gas gathering stations, a plurality of well clusters and a
processing factory, wherein the well clusters are communicated with the gas gathering stations through independent gas production pipelines, the gas gathering stations are communicated to the
processing factory sequentially through gas gathering
branch lines and a gas gathering main line, and a gas gathering system is arranged in the gas gathering stations and sequentially comprises a plurality of gas gathering
station inlet pipelines, a plurality of separators, a compressor and a gas gathering
station outlet pipeline. According to the low-permeability gas field gathering and transmitting system and the gathering and transmitting method of the low-permeability gas field gathering and transmitting system, high-pressure production is performed while the transmitting and
processing requirement is met at the early stage of the well clusters, pressure energy and temperature energy at the early stage of a gas well are fully utilized, the
pipe diameter of a pipeline and the injection amount of
hydrate inhibitors are reduced, low-pressure production is performed at the middle-later stage, concentrated pressurization is performed on the gas gathering stations, concentrated processing is performed in the processing factory, gas
field development ground investment and running cost are reduced, and construction of a gas gathering
pipe network is more reasonable.