With the advancement in streamline simulation technology in modeling fractured reservoir and streamline associated well allocation factors, now it can be used as an effective tool to validate fracture lineament through visualization of streamline-based flow pattern and injection allocation between each injector and producers. Such capability has made streamline based history matching very attractive and more reliable in expediting history matching of simulation project.

The objectives of the study are to improve the history match by validating fracture lineaments and then optimize Injection-Production Ratio (IPR). This study involves the conversion of a finite difference black oil Dual-Porosity Dual-Permeability (DPDP) history matched model into a Dual-Porosity Single-Permeability (DPSP) streamline simulation model and history match results are improved. Based on field-wide streamline flow patterns map, the field is divided into several independent regions. Within these regions, the fluid flow patterns between individual producers and injectors are also identified by the generated streamlines. In addition, an injector efficiency software is used to calculate actual water contribution of each injector to each producer from the well allocation file generated by the streamline simulator.

This paper documents the procedure on imporoving water cut matches by validating fracture lineaments. This novel procedure involves the tracking of water saturation and Time of Flight (TOF) of injected water along streamlines, its respective main contributing injectors, fracture/matrix cells carrying the flow, fracture cells to be connected and/or disconnected with other fracture cells and where fracture/matrix cells require permeability enhancement or reduction.

After improving the history match level, Injection Production Ratios (IPR) are optimized and considerable amount of incremental oil production is obtained.

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