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CHAPTER 02 RESERVOIR INTRODUCTION CONDITION FOR AN ACCUMULATION OF OIL AND GAS ° A mature source rock ° A reservoir rock ° A migration route (betw. Source & Res.) ° An impermeable seal ° A trap RESERVOIR ° A single continuous deposit of gas and/or oil in the pores of a reservoir rock. A reservoir has a single pressure system and don’t communicate with other reservoirs. ° The portion of the trap that contains petroleum, including the reservoir rock, pores, and fluids. ° A pond, lake or environment that is used store liquids. Exp: RESERVOIR OF CUU LONG AND SOUTHERN CONSON BASINS Figure 1 RESERVOIR (cont.) ° There are two fundamental physical properties that a good reservoir must have: + Porosity or sufficient void space contain significant petroleum. + Permeability, the ability of petroleum to flow into, or out of these voids. ° The only common rock type that have favorable combination of porosity and permeability to be reservoirs are sandstones and carbonates. ... - tailieumienphi.vn
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