TABLE 9F AUTOMATED CORE MEASUREMENTS Net Stress (psi) Porosity (%) Porosity (%) Klinkenberg Permeability (MD) 1,000 14.48 16.38 1,500 14.07 15.30 5,000 12.81 12.46 9,800 12.51 11.82 A stress-sensitive productive zone was cored from 8,000 to 8,050 ft. Core plugs were subsequently analyzed for porosity and permeability by an automated core measurement system (Core Laboratories CMS 300). This system provides measurements of porosity and permeability as a function of overburden stress, as shown in Table 9F. The stress gradient is 0.5 psi/ft. a. Using Jones method [46], determine porosity and Klinkenberg permeability at zero net stress. b. Develop an empirical relationship between (1) the void ratio 0/(1-0) and stress, and (2) permeability and stress. c. Estimate the porosity and permeability values at a depth of 8,025 ft. d. A second well was drilled to a second zone at 10,500 ft. Assuming the two zones are similar, calculate the porosity and permeability of this zone. TABLE 9F AUTOMATED CORE MEASUREMENTS Net Stress (psi) Porosity (%) Porosity (%) Klinkenberg Permeability (MD) 1,000 14.48 16.38 1,500 14.07 15.30 5,000 12.81 12.46 9,800 12.51 11.82 A stress-sensitive productive zone was cored from 8,000 to 8,050 ft. Core plugs were subsequently analyzed for porosity and permeability by an automated core measurement system (Core Laboratories CMS 300). This system provides measurements of porosity and permeability as a function of overburden stress, as shown in Table 9F. The stress gradient is 0.5 psi/ft. a. Using Jones method [46], determine porosity and Klinkenberg permeability at zero net stress. b. Develop an empirical relationship between (1) the void ratio 0/(1-0) and stress, and (2) permeability and stress. c. Estimate the porosity and permeability values at a depth of 8,025 ft. d. A second well was drilled to a second zone at 10,500 ft. Assuming the two zones are similar, calculate the porosity and permeability of this zone