Reservoir Drive Mechanismss

825 Words 4 Pages
Curve: showing reservoir flow direction
Most of the computer programs are essential as they allow multiple forecasting hence giving a sensitive analysis especially on computed variables. It uses harmonic and hyperbolic approaches covering forecast having upside projection and useful facility designs. It requires to determine appropriate measures from the production restricting on the computation data (Hansen & Espedal, 2000). Fields under pump producing high volumes of water and linear relationship helps in reflecting harmonic decline. Furthermore, exponential decline are provided through plotting a graph showing production decline relating on amount from reservoir.
Reservoir drive mechanisms
Reservoir drive mechanisms are essential in supplying
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Aquifer water under pressure have to expand slightly, hence displacing oil or gas that is in the reservoir toward borehole where the pressure drops. The mechanism only exists and persist only when aquifer better or equal in quality than the reservoir hence having larger volume that reservoir (Brooks & Omoigui, 2012). In addition, aquifer water has to communicate with the surface recharge for a good assimilation report. The water drive shows effectiveness in oil reservoir compared in the gas reservoir. In circumstances where in field’s aquifer water is smaller or have lower quality, it tends to have limited expansion of water to the reservoir as ether gas or oil is withdrawn. It introduces partial water drive that results from poorer quality of aquifer in terms of limited volume of pore geometry. Reduction of water support leads hydrocarbon rate of production to drop more rapidly at a higher rate that in a reservoir having strong water drive hence reducing recovery (Li, Zhang, & Zhang, 2011). Therefore, it results to production decline curve making the trends more concave upward than decline curve involving strong water …show more content…
The more the gas in the solution, the more oil is compressible. it helps in the reservoir with little or having no water drive in driving oil toward the wellbore through expansion of oil as gas expand in solution. The nature of solution gas or depletion drive that’s works in determination of assimilation. When pressure drops mainly below bubble points in reservoir it pushes oil toward wellbore (Hansen & Espedal, 2000). A free gas in the reservoir at about to 5 to 10 percent where bubbles coalesce making gas to move toward wellbore hence separating flowing phase. Therefore, in these process, oil production drops while gas production increases as relative permeability rate to gas

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