This paper tries to make research on reservoir characteristics and controlling factors of the Zhangjiashan gas pool on the western climb of the Ziliujing anticline in order to make an approach to distribution regulation of gas and water in the gas pool and to searching for new gas pools.
Reservoir characteristics of the reefs in the Yuexi-4 well are thoroughly tested, whose average porosity is 26.1% and average permeability is 97.2×10~-3 μm~2. The organic reefs show distinct characteristics of seismic response and well logs, so the reefs may be identified and predicted according to their geophysical characteristics.
The research of reservoir characteristics indicate that the T_1j~2_2 reservoir's pore spaces were dominated by intercrystalline pores and corrosion pores, there have 1 ~2 high porosity section by corrasion in Mainan structure, the porosity is 6~16%,and in this area reservoirs mainly belong to type Ⅱ and typeⅢ, the reservoir type was defined as fracture-pore type. and the reservoir physical property were primarily dominated by sedimentary fades、 corrosion and dolomization.
Modern fine reservoir description is an important technical method to increase oil recovery efficiency,it can be applied to stratigraphic division and correlation,reservoir characteristics,oil-gas-water distribution,sedimentary microfacies researches and geological reserves calculation in petroleum and so on,by using 3-D dimension seismic,drilling and coring,well logging,exploiting etc.
By analyzing the photos of scanning electron microscopy and thin section,intrusive mercury curve and materials of porosity and permeability,the reservoir characteristics of bioclast limestone member are discussed,which include petrologic feature,pore structure,reservoir space and reservoir properties of matter.
The pressure and flow rate recorded from two tested zones were used to obtain the reservoir characteristics and the well productivity.
This expression shows that underproduction is a function of the royalty rate used and certain reservoir characteristics that can be easily estimated from publicly available data.
These statistical distributions have been constructed so that one has available an historical database for use in assessing the range of likely reservoir characteristics in exploration ventures in this basin.
Original field data reports from the Azerbaijan sector of the South Caspian Basin have been used to compile statistical histograms of reservoir characteristics for both onshore and offshore oil fields.
Effects of the deep ocean circulation on the reservoir characteristics of the ocean