四川盆地香溪群有水气藏天然气储量计算方法

Reserves Estimate of Water- Bearing Gas Reservoir in Xiangx iGroup, Sichuan Basin

( 1 成都理工大学 油气藏地质及开发工程国家重点实验室, 四川成都610059; 2 长庆油田分公司第一采油厂, 陕西延安716000 )

 State Key Laboratory of Oil and
Gas Reservo ir Geology and Exploitation, Chengdu
University of Technology, Chengdu 610059, China

Gas w e lls of thew ate r- bearing gas reservoirs in Xiangx i
G roup o f S ichuan basin are universally producing w ater and
are even subm erged in w ater, wh ich results in production
d ifficu lties and low deg ree o f explo itation. The pape r used the
m ater ia l ba lancem ethod, w hich ism ore con fo rm ab le w ith the
lim ited wa ter vo lum e character istics in th is area, to ca lcu la te
the gas reserves in order to he ighten the exp lo ita tion potentia l
o f every gas w e ll of producing w ater. The vo lum e o f wa ter
flow ed is om itted in size. The ca lcu la ting result d isplay s that
the gas reserve is large, and that som e gas w e lls produc ing
w ater and subm erged in w ater m aybe have a large potentia l
and that the gas seg regated by w ater can be produced whenthe reservo irw ate r is explo ited.