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GeoSystems Rock-Log ModelingThis multi‑faceted, analytical procedure provides the fundamental geological framework of a reservoir for purposes of efficient reservoir management and development. Thin section, X‑ray and SEM analysis of rock samples are used to determine petrophysical “Rock Types” in an existing field. This data is then integrated with logs to develop predictor equations for assessment of saturations, permeability, watercut, and the relationship of “Rock Types” to other petrophysical properties of the reservoir. The unique format is dominantly numeric, and is ideally suited to aid reservoir scientists in simulation analysis. A rock‑based, log model is developed for the field wide identification of flow units in cored and non‑cored wells. Data can be integrated from all disciplines (geophysics, log analysis, engineering). When this procedure is undertaken on multi-well fields, it allows for mapping of properties such as permeability and watercut in addition to standard maps of PhiH and HPVH. The study can also include the identification and re-determination of net pay, the identification of by‑passed production, and the recognition of damaged zones. Deliverables typically include log normalization with the rock/log model applied on selected wells in the study area with sufficient log suites. Results are typically integrated with the geological interpretation, core analysis, and production data. Isopach mapping of important parameters are typically developed as part of the scope of work. Contact GeoSystems
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