RESERVIOR CHARACTERISTICS OF YAKELA BLOCK IN THE NORTHERN TARIM BASIN

There are two kinds of reserviors consisting of clastics and carbonates in Yakela Black. Reser-viors in the Lower Paleozoic are dominated by carbonate rocks with fracture as storing space, which are favorable for hydrocarbon accumulation. Clastic reserviors were developed in the Lower Carboniferous, Mesozoic and Cenozoic. Donghe sandstones in the Lower Carboniferous was fair reservior worsening east-toward. Quality of reserviors in the Mesozoic and Cenozoic was controlled by their sedimentary environments.