FEATURES INTERPRETATIONS OF HORIZONTAL OIL WELL BUILD-UP TEST IN OIL AND GAS RESERVOIRS
The article describes the features of well test interpretation in horizontal oil wells in the development of oil and gas reservoirs. The dynamics of pressure change in horizontal wells affects the availability of oil water and gasoil contacts. When interpreting build-up tests allocated plots typical of two-layer reservoirs. In the later stages of the study noted the impact zones of constant pressure. Diagnostics of pressure transient two horizontal wells oil and gas field in Western Siberia. Comparative analysis showed an identical change in pressure when shut. Both wells were drilled near the gasoil contact at the maximum distance from the gas oil contact. The results obtained provided a method of estimating the vertical permeability and the anisotropy coefficient according well testing of horizontal oil wells.