Research And Application Of Overall Hydraulic Fracture In Block-jin-150

The block-jin-150 located in the east area of jingu-1 well which lies in the south of liaohe basin western sag western incline, It trends east-west . The block is made up of three sub-first grade block structure. It's about 2.1 km length from east to west, 0.8 km wide from north to south, it's oil area is about 1.4 km2,it's geological reserves is about 243×10~4t.The block-jin-150 put into development in 2001. It's oil production rate is only 1.1% at present , and overall recovery is only 11.67%, the production rate and overall recovery both are Relatively low, the main reason is the low permeability of the reservoir. It is an effective approach in present to use w.f. combined with fracturing . This article from the perspective of the overall fracturing,in order to raise the production of the block, through the relationship between hydraulic fracturing and water flooding, through the achieved results of micro-seismic monitoring. We established the numerical simulation model with the artificial cracks, Research the feasibility of hydraulic fracturing under the conditions of w.f., Research the influence of the artificial crack length and the conductivity parameter in the injection well, Research the optimizing and revising of the flood geometry which based on the trend and parameter of the artificial cracks. We do a lot of research of proppant, microthermal fracturing fluid, cleanly fracturing fluid, Fracturing / gas lift / product all-in-one oil string ,The assorted technics of height controlling of the crack .We also do some prophase experiments, we fractured 10 wells, increased oil production 10000t, obtained an good effect.Liaohe oil plant has entered the middle and later periods of exploit , there are many old blocks similar as block-jin-150,such as Huanbei Dujiatai oil layer,Xingbei Sha-3 oil layer,etc. After many years of development,the production has a decline because of the decline of the stratum energy .The research of this subject not only have an significance to the block-jin-150,But also have an directive significance to other similar blocks in Liaohe oil plant.