7 Pad Hydraulic Fracturing In Arenal Block

Description: This Project consists of carrying out the “hydraulic fracturing” process at the PADs Cabaña Norte 1, Cabaña Oeste 1, Lircay 1, Lircay Oeste ZG-1, Bardwick ZG-1, Cabaña 1 and Punta Piedra Oeste ZG-B of the Arenal Block. The fracturing process consists of a well stimulation technique, through the sustained injection of a fluid at such a pressure that it causes the rupture of the reservoir rock (increasing the contact area of the reservoir with the well), with the purpose of creating new channels or connecting existing flow channels, increasing the flow rate of the well and thus its productivity. The objective of Production is the extraction of hydrocarbons confined in the Glauconitic Formation, whose existence has been demonstrated by previous studies. This formation is located at an approximate depth of between 1,500 and 3,000 meters below mean sea level and will be accessed through the hydraulic fracturing of 7 PAD in the Arenal Block. The permeability of the rock in conventional hydrocarbon reservoirs (such as the case of Springhill in Magallanes), is approximately 5 to 1,500 millidarcy, however, in unconventional reservoirs, the permeability of the rock fluctuates between 0.001 to 0.04 millidarcy . Due to the low permeability, the fracturing operation is necessary, without which the extraction of confined hydrocarbons would not be possible. Table 1-1 shows the status of the Environmental Qualification Resolutions (RCA) corresponding to the drilling process of the wells that make up this project. Table 1-1 RCA of Drilling of each Well Associated with the Project Source: Own Elaboration, 2018 The objective of this Project is to increase the hydrocarbon productivity of 7 PAD located inside the Arenal block, through the hydraulic fracturing process in the Glauconitic Formation , a process that will increase the contact area of the reservoir with the surroundings of the wells, thus achieving the extraction of the hydrocarbons contained in the deposit at profitable flows.