Dynamic Analysis Of Shapingchang Carboniferons Gos Reservior Development

Dynamic analysis of gas reservoir is a important content of gas reservoir development and management scientifically, timely and accurately grasp the alternation of gas reservoir development and systematicaly dynamic analysis of gas reservoir development has great significant impact on better developing gas reservoir and improveing development effect of it.Carboniferous gas reservoir of ChuanDong Shapingchang located in Chongqing Municipality. It was producted in1999 and total 20 wells were drilled in December 2009. TD90 was closed presently due to producting water and other wells were producted normally. The cumulative gas production of gas reservoir is 120.55×108m3 and total water production is 5.13×105m3.In this paper,to be aim at the actual situation of a part of wells wich product warter seriously so that it affect the gas reservoir development in Carboniferous gas reservoir of ChuanDong Shapingchang . On the basis of logging,core and data of well test, the geologic feature of the Carboniferous gas reservoir of ChuanDong Shapingchang was research and the height of reservoir has a tendency to be thin from south to north and heterogeneity obviously.The gaps mainly located in the top of Huanglong formation in the vertical and mainly located in the mid-structure in the horizontal.According to well test analysis ,the reservoir of the mid-structure have better permeability than two ends.Then dynamic analysis the gas reservoir systemtly refer to the dynamic document,non-uniform and mechanism of product warter.Present the reservoir pressure have the half of initial formation pressure.The property of reservoir have an important effection to the well's non-uniform flow.The high capacity well main concentrate in the mid-structure which have gap and hole vegetal.As research,the reason of TD90 well product warter is that warter channeling along the gap,and product warter in south thinck as adge warter fingering. By several conventional methods and proposed material balance method based on the characteristics of the gas reservoir to calculate dynamics of the gas reservoir reserve and the dynamic reserve estimation, and comprehensive evaluation, obtained the dynamic reserve of the gas reservoir is 323.10×108m3, to provide a material basis for adjusting the gas reservoir development. Finally, put forward some suggestions for the gas reservoir development by refer to the gas reservoir's the geological and dynamic characteristics.