| Through flat 1 wellblock in fuyu reservoir sandstone development more layer number and thickness of single layer thin, oil layer is relatively concentrated, an average of 14.6%, permeability reservoir porosity on average 1.54 m D, for low porosity, low permeability reservoir, this paper through the analysis of the slope flat 1 wellblock geology, porosity, permeability, elastic modulus, poisson’s ratio, rock mechanics parameters, such as on the walls, flat blocks of rock triaxial stress test. Get through flat 1 wellblock of reservoir property parameters. Knot and seismic data and drilling data, through the finite element simulation method to simulation analysis through flat 1 wellblock is constructed by the software through flat 1 wellblock of three-dimensional geological model. Based on geological model simulation can understand the stress size and distribution of the geological layer, including horizontal principal stress size range. At the same time analyzed the mutual influence between the fault. Analysis the result stress changes in the vertical section in this block, and through the three-dimensional simulation analysis predict crack in formation. On the whole through flat wellblock stress fracture analysis of the engineering application. Including seam stress interference, the artificial fracture optimization. Water fracturing here get a lot of application and a lot to offer other information reservoirs of water fracturing practice. For dense atmosphere, the advantages of clear water fracturing is very obvious, compared with other conventional fracturing, but also have a lot of ascension, fracturing base fluid with water, water solution, less after fracturing is easier to form effective joint network, damage to the reservoir is small. Now is very suitable for the oil and gas reservoirs. |
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