... Abstract Artificial lift is the backbone of unconventional field production. Lifting oil and gas in an optimal manner and economically is one of the most challenging phases of field development with depleting reservoir energy. Traditional approaches of lift selection are not sufficient...

... upstream oil & gas north america government air emission injection requirement pvt measurement enhanced recovery depletion texas gas-flaring solution enhance oil recovery btu lbm-mole permeability revenue united states government electricity infrastructure generator...

... Abstract Organic matter in source rocks stores oil in significantly larger volume than that based on its pore volume due to so-called nanopore confinement effects. However, during production and depletion, recovery of that oil is low. In this paper, we introduce the nano-confinement effects...

... spaced, short fractures to accelerate hydrocarbon recovery. Third, in basins where there are multiple producing horizons or formations, fracture height growth and interference between adjacent formations can result in asymmetric fracture propagation towards depleted zones. The longer these wells...

... Abstract With depletion of coalbed methane (CBM) wells in the San Juan Basin, permeability rises by 10 to 100 times. Similar permeability increases are found in other CBM basins around the world. Models previously advanced to explain this behavior combine a compaction mechanism (which closes...

... guidelines are simple and practical, and should benefit any CBM completions strategy. We also re-examine the striking observations of permeability increases with depletion (10-100 times) in the San Juan basin. The latest attempts to model and match the strong permeability increases with depletion in the San...

... methodology. The overwhelming conclusion is that the dominant source of water production is the depletion of the reservoir shale. This conclusion also provides significant insight into the reservoir characterization and communication levels within the field. The results have had a direct impact on completion...

... or sidetrack decisions. perforation upstream oil & gas frankforter spe 76715 reservoir formation evaluation formation resistivity application depletion hemlock alaska resistivity measurement electrode spe 76715 log analysis evaluation well logging sweep efficiency permeability chfr...

... in the Patos area (southern half of the field) is about 998 kg/m³ (11º API) with dead oil viscosity over 9000 mPa s under reservoir conditions. Due to the unfavorable fluid properties oil recovery to date amounts to less than 5 % under depletion drive. The wells with a 2.5 acre spacing generally produce...

... ABSTRACT This paper describes a research project to determine oil recovery potential by CO 2 /flue gas injection for the Lost Hills diatomite reservoir. Gas injection into the diatomites may provide an altemale recovery method to waterflood and primary depletion. The present study is aimed...

... understanding of the pressure-production behavior of an individual well. The analytical IPR was verified using simulator information for three-phase flow. The analytical IPR provides a method for the petroleum engineer to develop individual IPRs for each reservoir. depletion three-phase flow inflow...

... of existing wells is estimated to be 115’ [35 m], while the no flow boundary is known to be 165’ [50 m]. The half-length is calculated based on the productivity of 20 wells and their reservoir pressure profile after 5 years of depletion. It is assumed that the reservoir is still in transient linear flow...

... surveillance history drillstem testing hydrocarbon recovery pvt measurement hydraulic fracturing reservoir characterization fluid dynamics united states government flow in porous media artificial lift system geology complex reservoir enhanced recovery geologist depletion saturation bottomhole...

... 1 and 2 production area. Two types of depletion schemes were investigated; in the first, the reservoir remains in liquid phase; in the second, the reservoir becomes two phases at an early point of its history. A satisfactory match of the history of the field has been obtained only for the second...

... is considered. For a given step of depletion in the tank model, mass and energy produced are calculated and the pressure distribution in the central part of the reservoir is computed. The mass of fluid injected and/or natural water influx from the aquifer zone is estimated, and corresponding fluid flow from...

... indicates average oil production per well has been sustained at rates more than four times as high as comparable wells in adjacent pools under solution gas drive. The adjacent pools were waterflooded in the later stages of primary depletion. Comparison of water-oil ratio vs. recovery performance indicates...

... condensate reservoir Upstream Oil & Gas Phase Behavior flow in porous media Fluid Dynamics porous medium PVT measurement pressure condition bubble point system depletion rate composition saturation condensate system pressure depletion complex reservoir depletion water...

... of a reservoir hydrocarbon mixture during depletion is not completely arbitrary. Rather, the phase behavior of a single mixture is well defined under a condition of declining pressure. Composition of a sample of reservoir fluid under pressure depletion is illustrated in Figure 5. By taking various mixtures...

... the equipment had a fair value of $300,000, this means that he would purchase the oil and gas minerals for $6,600,000. As operator, B would be entitled to the higher of percentage or cost depletion to recover his capital investment in the minerals. With an investment in minerals of this magnitude, B would...

... make the venture twice as attractive as would otherwise be the case. As will be seen later, this is not simply a theoretical possibility; accordingly, tax planning in the oil and gas field leaves plenty of room for an inventive tax attorney. depletion oil payment net-profit interest Drilling...