AN APPROACH ON THE DEVELOPMENT TECHNOLOGIES OF FISSURE-KARST CAVE-TYPED HYDROCARBON POOLS IN CARBONATE ROCK

The fissure-karst cave-typed hydrocarbon pool in carbonate rock is one of the most developed types of hydrocarbon pools for the marine strata of the Tarim Basin in the western part of China. Its most important feature is that its storage spaces are dominated by fissures and karst caves. The reservoirs have rather strong heterogeneity.The log ging and seismic data are very difficult to dist inguish. Besides,its development is very much different from ty pical clast icrock hydrocarbon pools in China. During the development process of Tahe oilf ield in Xinjiang,the wells brought into production only took 10 percent,and a large part of wells were brought into production after the acid fracturing treatment. In this paper,the productive features of S-70 well after several acid fracturing treatments were used to analyse the reservoir characteristics of oil pools,and the development technologies of fissure-karst cave-typed hydrocarbon pools were discussed.