WELL PRODUCTIVITY IMPROVEMENT BY COMBINATION OF DEEP PENETRATING PERFORATION AND HIGH ENERGY GAS FRACTURING TECHINQUE

• Main Author: Yudha Nugraha, Fanata
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/46176
• Institution: Institut Teknologi Bandung

Formation damaged zone and compacted zone are problems that often arise in perforation operations, for both conventional perforation and deep penetrating perforation. These problems produce a negative impact in the form of a high value of skin effect, which will ultimately reduce the potential of well productivity. In its development, there is a perforation technique that are able to overcome these problems, namely a combination of techniques between deep penetrating perforation and high energy gas fracturing. This study focuses on the geometry validation produced by the combination of deep penetrating perforation and high energy gas fracturing techniques, and their effects on well productivity. The steps that the author did in this study are as follows. First, simulating deep penetrating perforation and high energy gas fracturing modeling to determine the geometry of perforation and fracture using commercial software. In the modeling of high energy gas fracturing is done using the hydraulic fracturing approach. Second, evaluating productivity result on known geometries with parameters of skin effect, productivity index (PI), and inflow performance relationships (IPR). Third, to determine the effectiveness and feasibility of the non-conventional techniques can be done by comparing the productivity results against the productivity results of conventional perforation techniques. After conducting study with the above stages, it was found that this technique is capable of producing negative skin, which has an effect on increasing productivity index and ultimately maximizing the production flow rate. The productivity increase that can be achieved by a combination of deep penetrating perforation and high energy gas fracturing techniques is quite promising. The value of productivity increase is 3,34 times against conventional perforations, and by 2,45 times against standalone techniques from deep penetrating perforation. Thus, it can be concluded that the combination of deep penetrating perforation and high energy gas fracturing techniques can be effectively applied to improve well productivity.