China is one of the pioneering countries in discovering and using oil andgas.The first gas field(Ziliujing gas field)in the world

for example

was developed in China.In the Western Zhou Dynasty of our country(from the 11th century B.C.to the 771 B.C.)

oil and gas seepage——“firein swamp”was discovered.In ancient China

oil was called“oil in firewell”

“well-oil”

“fire oil”

“surphur oil”

“realgar oil”

“fierce-fire oil”

“naphtha”

“mud oil”

“crude oil”

“earth wax”

“stone lacquer”

“oil-water”

“paraffin”etc.;and gas was called“fire in well”

“well-fire”

“coal gas”

“fire dragon”

“fire spring”etc.Historic literature indicates that a lot of oil and gas shows weredistributed in 23 provinces

municipalities and autonomous regions of thepresent administrative division:1.Beijing

2.Shanghai

3.Tianjin

4.Sha-anxi

5.Sichuan

6.Hebei

7.Shanxi

8.Shandong

9.Anhui

10.Zhejiang

11.Jiangxi

12.Fujian

13.Taiwan

14.Guangdong

15.Guangxi

16.Hunan

17.Hubei

18.Henan

19.Yunnan

20.Xinjiang

21.Gansu

22.Liaoning

and 23.Heilongjiang.