... storage variation gas reservoir permeability cushion gas CMTC-552947-MS Study on Operation Strategy of Aquifer Underground Gas Storage Using CO2 as Cushion Gas Lingyu Mu, China University of Petroleum (Beijing), Beijing, China; Xinwei Liao, China University of Petroleum (Beijing), Beijing, China...

... that SCCO 2 injection have better EGR effect in case of lower permeability, higher water saturation and greater dip angle. displacement reservoir gas recovery tight gas chemical flooding methods co2 injection egr water saturation natural gas gas depletion gas reservoir shale gas upstream...

... with the smaller radius of the aquifer. Moreover, in the smaller aquifer, the rapid pressure transient results in that the system quickly reach the stable stage. The effect of the inclined fracture on the system is embodied in its permeability, location and angle. With higher permeability the leakage rate...

.... chemical flooding methods experiment saturation co2 injection pressure range oil recovery oil saturation upstream oil & gas permeability miscible phase natural fracture recovery potential carbon dioxide pore micro pore recovery factor core sample reservoir enhanced recovery...

... 2 front is controlled by the relative permeability of two phases and capillary pressure. Water saturation profile from CO 2 injecting point to the displacement front shows that water saturation behind the CO 2 front increases outwardly, and the change in saturation is non-linear. The injection...

... since the pressure front travels faster than our CO 2 plume, resulting in minimal pressure buildup at the bottom-hole level. Our study also finds that the injection well may have penetrated a sandbody with interconnected permeability which contradicts the notion in previous work that a high...

... that at 0.01 Darcy intrinsic permeability of formation, a significant pressure delay is witnessed during CO 2 injection in hydrate formation. At 18 MPa injection pressure, the pressure hardly becomes stable during 4 weeks of hydrate growth process. Due to slow pressure distribution, it also affects temperature...

... Abstract The matrix permeability of the tight sandstone reservoir is very low, which causes difficulty to inject water, the CO 2 flooding is applied widely to these reservoirs for the better oil displacement and low injection pressure, but natural fractures develop as well as artificial...

... Abstract Asphaltene deposition is one aspect of the serious causes decreasing the production capacity, and a common phenomenon during CO 2 flooding in ultra-low permeability reservoirs. Prior to asphaltene deposition, the asphaltene first precipitates from the crude oil. It is urgent to find...

... permeability was measured. Gelant was injected into the cores until the injection pressure stabilized. Breakthrough pressure was tested and followed by two WAG cycles injection. The injection pressure was monitored. Different permeability cores (100- 1200 md) were used to mimic different reservoir conditions...

... with this complicated three-stage flow mechanism simultaneously, analytical apparent permeability which includes slip flow and Knudsen diffusion will be incorporated into a commercial simulator CMG-GEM. A Langmuir isotherm model is used for CH 4 and the multilayer sorption gas model, a BET model, is implemented for CO...

... of the model, the flowing characteristic of "foamy oil" during CO 2 flooding was regarded as the function of time and flow condition. The relative permeability curve and critical saturation of bubble were modified to determine the influence of "foamy oil" on oil recovery. Taken one oil field in north China...

... be applicable to other potential sites in this region, having similar geological characteristics. upstream oil & gas louisiana chemical corridor injection rate storage zone boundary type dynamic storage capacity estimate capacity estimate estimation permeability carbon management technology...

... wellbore type leakage potential injection well reservoir characterization sensitivity analysis storage zone well leakage index cement coverage leakage rate flow in porous media wellbore integrity fresh water aquifer permeability casing and cementing fluid dynamics wellbore design leakage...

... from the nano-Darcy permeability matrix becomes the next step. Previously conducted laboratory experiments demonstrated promising results by successfully recovering liquid hydrocarbon from preserved and unfractured sidewall unconventional core plugs. However, what are the driving forces behind...

... fracturing co 2 secondary fracture shale gas conductivity fracture primary fracture log-log curve fracture network hydraulic fracture fracture permeability complex reservoir fracture topology permeability flow regime injection process inner boundary CMTC-485740-MS Performance Evaluation...

... Abstract The San Andres is a well-known dolomitic enhanced oil recovery target with low matrix permeability in the area of interest (Yoakum County, TX). A reservoir simulation study was undertaken to investigate the feasibility of using horizontal multi-fractured wells in low permeability...

... Abstract Relative permeability of CO 2 and brine is one of the fundamental parameters controlling flow related to carbon storage in saline aquifers. Core samples recovered from subsurface formations are characterized in laboratory experiments to determine effective core relative permeability...

.... This alteration is accounted for by considering different properties on the two sides of the fault. The reservoir is divided into two regions separated by the fault, which are in hydraulic communication with one another and with the overlying/underlying permeable layers. The governing system of differential...

... performance in field scale. This study found that the porosity and permeability of natural fractures in shale reservoirs are significantly changed with production time, which in turn, led to a clear gap between CO 2 performances in lab-conditions versus to what happened in field pilots. As a result...