Gaswell Testing

3 Isochronal Test 13 1. 4 Modified Isochronal Test 17 2. 3 Analytical Solution of the Diffusivity Equation 33 2. 9 Determination of S, S' and 0 from Buildup and Drawdown Tests 47 53 3. 2 Choice of Flow Rates and Duration of Flow Rates 64 3. 3 3. 6 Single-Point Test 68 3. 8 Testing Equipment 74 76 3. 3 State of Oklahoma Regulations 102 4.