| Block Jing-52 as the representative of buried hill oil reservoir with cracks is the metamorphic formation with low porosity and permeability, the intrinsic open cracks .The underground crude oil is characterized with high paraffin content, high pour point , which causes the oil reservoir development very difficult, so the Block Jing-52 has not been developed effectively yet until now .An-130 as an example in this article , which reservoir core is under the entire rock analysis test, the ordinary tri-axial test , factor of saturation test with nuclear magnetic resonance , the stress and its sensitive test . Based on a series of the above-mentioned indoor appraisal experiments, Block Jing-52 can be fully realized. A new type of fracturing fluid matched with different proppants has been made after the indoor appraisal of fracturing fluid with different additives on crossing linking, viscosity break, heat resistance, shear resistance, rheological characteristics, anti-swelling, emulsion breaking and cleanup, as well as the optimization of fracturing fluid and proppants. By using the ECLIPSE numerical simulation software and FRACPROPT three dimensional fracturing analysis software, with the consideration to overall control the crack in height, to optimize longitudinal section for proppants , to avoid the multi-cracks, to reduce filter loss and so on, the fracturing operation parameters can be comprehensively optimized while the operation on site is organized and the final operation result will be evaluated .A large-scale fracturing technology, suitable for metamorphic buried hill oil reservoir, has been made through the full reservoir study of An-130, the fracturing materials optimization , the large-scale fracturing operation and engineering research , which will be used to support the development of Block Jing-52 successfully, as well as the other similar oil reservoirs .
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