Classification and Reservoir-controlling Factors of Water-dissolved Gas in Eastern Chaidamu Basin
Received date: 2008-09-05
Revised date: 2008-10-28
Online published: 2008-12-10
Water-dissolved gas is a kind of unconventional gas. To further analyze the economic value of water-dissolved gas in the Quaternary of the Sanhu of Chaidamu Basin, the authors preliminarily study the classification of water-dissolved gas according to the change of gas/water ratio and after quantitatively processing the gas bearing saturation using the gas bearing saturation model derived by conductivity expression in a gas bearing shaly sandstone dual porosity model along with referencing practical test results. Water dissolved gas can be divided into four types. It is of economic value when, according to the static economic evaluation, the gas/water ratio is more than 20 m3/m3 under the present economic and technological conditions. The reservoir formation of water-dissolved gas with high GWR are controlled and influenced by structural trap, development degree of gentle slope belts, steep slope zone etc.
ZHANG Feng-min ;WEI Guo-qi ; LI Jian ; GUO Jin-hua ;HU Guo-yi ;SHI Qiang . Classification and Reservoir-controlling Factors of Water-dissolved Gas in Eastern Chaidamu Basin[J]. Natural Gas Geoscience, 2008 , 19(06) : 882 -887 . DOI: 10.11764/j.issn.1672-1926.2008.06.882
[1]杨申镳,张肖兰.水溶性天然气勘探与开发[M].北京:石油大学出版社,1996.
[2]张子枢.水溶气浅论[J].天然气地球科学,1995,6(5):29-34.
[3]武晓春,庞雄奇,于兴河,等.水溶气资源富集的主控因素及其评价方法探讨[J].天然气地球科学,2003,14(6):416-421.
[4]金之钧,张明利,汤良杰,等.柴达木中新生代盆地演化及其控油气作用[J].石油与天然气地质,2004,25(6):603-608.
[5]张一伟,党玉琪,熊继辉,等.柴达木盆地油气勘探论文集[M].北京:石油工业出版社,2004.
[6]党玉琪,张道伟,徐子远,等.柴达木盆地三湖地区第四系沉积相与生物气成藏[J].古地理学报,2004,6(1):110-119.
/
〈 |
|
〉 |