| Condensate gas reservoir is the most special and complex reservoir. When it is in initial pressure, condensate gas reservoir only has single gas phase. However, with the pressure goes down, heavy components will be separated out into liquid. In companion with time goes on, condensate liquid will gather around the well bore. Furthermore the changing of pressure and temperature, inter-phase mass transfer and phase state changing will affect the seepage of condensate reservoir. As a result, great difficulty has been presented in the exploit of condensate reservoirs.As an important portion of SINOPEC's leading projects. The paper systematically investigates the literatures and application actuality. A great deal of research and experiments has been carried on the high temperature and high pressure resisting fracture fluid systems; combine with corresponding numerical modeling, and calculation results have been given. Principal conclusions are the following.(1) Anglicized how porous medium adsorbing, porous medium capillary condensation, and other kinds of factors affect the phase equilibrium. Heavier component leads to greater losing of condensate gas saturation; higher formation temperature leads to less effect of adsorption; less porosity leads to greater absorbing. In addition, core experiment proved that retrograde condensation has greater effect in low seepage rate condensate reservoirs.(2) When water saturation rising from zero to minimum primary water saturation to maximum primary water saturation. The times of descend is lower in former half stage. To a great extent descend is in latter stage. This shows that in latter stage, damage of seepage is more sever. The paper account for it correctly.(3) in the situation of irreducible oil saturation, even if the fluid phase exceed the irreducible water saturation, the seepage of gas phase saturation is usually greater than irreducible water saturation, which shows that the bleeding of condensate oil and adsorption interchange the acting of irreducible water saturation, which will alleviate the degree of condensate water.(4) The effluent water of Sha 3 and Sha 4 is not condensate water but formation water. Water sensitiveness is in the medium level or a little upper. Once the rock's permeation character has been changed, rock's permeation character can't be changed although high rapidity gas flowing has beenpresented.(5) Water locking and oil locking experiments shows, available reservoir pressure gradient can't discharge the locking of fluid, even if making earnest trigger pressure gradient amount to 30 percent experimental testing and exceed to 3.2 meter of water locking depth.(6) Firstly, combining with the cross link reaction process and reaction dynamics, anglicized the mechanism of boracium cross link fracture fluid, and put on the retarding cross link mechanism and control technology. High temperature resisting performance of the OCB-II fracture fluid system has been explained.(7) Through experiment, we determined the fracturing fluid system: OBC-I or OBC-II as high temperature cross-linking agent, HPG as thickener. APS and NBA101 capsule as breaker. Meanwhile, clay stabilizer, surface active agent, high temperature stabilizer were screened out. Effects of additives on properties of fracturing fluid were quantitatively analysis.(8) Analyzed the changing of shear rate, researched the cropping resisting performance, compatibleness, core damage and flow conductivity. Based on the temperature-time profile, we adjusted the components and evaluated the rheological property gel-out thinking performance.(9) The paper represented equalized oil gas phase components, mole fraction, equilibrium constant and equation of material balance in relation to temperature and pressure; equ-ibalance oil-gas buildup, equilibrium constant and fugacity equation. And use this for phase balance calculation. Through using Darcy's law, we represented flow equation for e...
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