Research On Steam Stimulation To Replace Technology In Xinglongtai Reservoir Of Du Block 229

The subject which on the basis of the geological characteristics of the reservoir and the production of steam stimulation dynamic analysis, selected test area, set up a three-dimensional geological model, through the production of dynamic history matching, to determine the current oil temperature, pressure and residual oil distribution, researched and analyzed a variety of technologies to replace the various possible production mechanism of the screening criteria, as well as the applicability of the reservoir. Taking use of reservoir engineering analysis and numerical simulation methods, and for the exploitation of technology, And concluded: through the years of steam stimulation, Compared with the early development, the remaining oil saturation remains high, inter-well reservoir temperature is higher than 73℃, crude oil already has a mobile capability, through researching the adaptive and the exploitation mechanism of variety of replace steam stimulation technology, resulted that the reservoir composed by a number of small layers on the vertical, single-layer thickness greater than 15m is in a less. Therefore, in the current technical conditions, it is not suitable for large-scale mining to SAGD. The reservoir conditions in line with the implementation of the development of steam flooding. For driving Operation, the "horizontal wells to steam flooding." Through did injection and production parameters optimize, development index forecast, and economic evaluation target prediction to conventional steam flooding, and to horizontal wells to steam flooding respectively, results showed that the less the same target in two ways, under the conditions of high oil prices, there is profitability. Have some recommendations for region to select appropriate site, to carry out field trials, and track and adjust dynamically to verify the applicability and implementation of its results, in order to explore effective replace technology after steam stimulation in the thick inter-layered of ultra-heavy oil reservoir of 229 DU, to further enhance oil recovery.