PVT lab measurements of both CO2 injection and depletion tests were performed and modeled under highly controlled conditions and at different temperatures to obtain equilibrium properties.
In this study, pressure depletion tests on foamy oil flow were conducted in a one-meter-long sandpack system to investigate the effect of pressure depletion rates on different heavy oil solvent systems in porous media.
To address the kinetics of the non-equilibrium process, a 1.5-m multiple pressure-port core holder was designed to measure the differential pressure in the various sections of the sand-pack during CO2 depletion tests.
This appendix presents simulated constant volume depletion testing results based on input data in Appendix A and calculation procedure in Appendix C. Note that the calculation results are based on 1.0 MMSCF of Gas-Equivalent at the dew point conditions (Tables 6, 7, 8, 9).
This chapter reviews the conventional and unconventional laboratory pressure-volume-temperature (PVT) measurements on crude oil samples, including compositional analysis, constant-composition-expansion, differential-expansion, and constant-volume-depletion test.
These need to be further investigated but overall, these results, although potentially interesting, cannot provide a common explanation for the BC phenotype for all protein depletions tested.
In this study, three types of constant composition expansion tests on foamy oil are conducted in a pressure/volume/temperature cell: (a) constant pressure depletion rate test, (b) constant volume withdraw rate test, and (c) step-by-step test.
Totally, nine experiments are undertaken including four experiments for the constant pressure depletion rate test, four experiments for the constant volume withdraw rate test, and one experiment for the step-by-step test.
The required input data are bottom hole flowing pressures, gas and condensate production rates, and constant volume depletion (CVD) test data.
