1. Answer the following questions

1. Plot pressure versus radius on both linear and semilog paper at 0.1, 1.0, 10, and 100 days for pe = 2500 psia, q = 300 STB/day, Bo = 1.32 bbl/STB, = 0.44 cp, k = 25 md,h = 43 ft, ct = 18 106 psi1, and = 0.16.
2. Assuming that a pressure drop of 5 psi can be easily detected with a pressure gauge,how long must the well be flowed to produce this drop in a well located 1200 ft away?
3. Suppose the flowing well is located 200 ft due east of a north-south fault. What pressure drop will occur after 10 days of flow, in a shut-in well located 600 ft due north of the flowing well?
4. What will the pressure drop be in a shut-in well 500 ft from the flowing well when the flowing well has been shut in for one day, following a flow period of 5 days at 300 STB/day?
5. A shut-in well is located 500 ft from one well and 1000 ft from a second well. The first well flows for 3 days at 250 STB/day, at which time the second well begins to flow at 400 STB/day. What is the pressure drop in the shut-in well when the second well has been flowing for 5 days (i.e., the first has been flowing a total of 8 days)?
6. A well is opened to flow at 200 STB/day for 1 day. The second day its flow is increased to 400 STB/day and the third to 600 STB/day. What is the pressure drop caused in a shut-in well 500 ft away after the third day?