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Qidong Yanchang, China

Ma J.,Xian Shiyou University | Ma J.,Xian Jingshixin Petroleum Technology and Develop Co. | Jiang X.,Zibei Production Plant | Zhang J.,Zibei Production Plant | And 4 more authors.
Well Testing | Year: 2014

Based on a brief introduction of the structure and basic working principle of the Multi-Sublayer Test Instrument (MSTI), the method to obtain the multi-sublayer fluid flowing pressure curve and the explanation theory of the gained data and pressure curve has been proposed. The sublayer formation test flowing pressure curve and the explanation results which acquired from 5 layers in 3 wells at ZiBei oil production plant by the MSTI is introduced. The bedrock permeability of the extra-low permeability reservoirs, the location of the horizontal fractures which created by hydraulic fracturing, the vertical fractures, the flowing rate maintained by formation being hydraulic fractured after many years, and other dynamic parameters of the reservoirs such as static formation pressure, temperature, skin factor and oil productivity index have been acquired. The conclusion is that the fractures detected within about 700 meters in this area are probably horizontal and those who below the depth of 700 meters are probably vertical. But the permeability, skin factor and oil productivity index are random, which is uneven distribution. ©, 2014, Well Testing. All right reserved. Source

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