id	keyword
esrj-91149	gas
esrj-91149	source
esrj-91149	sichuan
esrj-91149	permian
esrj-91149	belt
esrj-91149	middle
esrj-91149	basin
esrj-91149	formation
esrj-91149	northwest
esrj-91149	oil
esrj-91149	reservoir
esrj-91149	rocks
esrj-91149	accumulation
esrj-91149	middle permian