... miscible flood spe 70066 injection rate porosity directional drilling reef margin pattern 777 drilling operation producer solvent injection injector enhanced recovery Introduction Hydrocarbon miscible flooding has long been a preferred means of enhanced oil recovery (EOR) in Alberta...

... Introduction Acidizing in horizontal wells is significantly different than in vertical well. In a horizontal well, formation contact area is much longer, and acid distribution inside the wellbore is a greater issue 1 . The acid injection rate per length of formation treated is also generally much lower...

... fluid loss term (ξ) that is given by (7) ξ = π d L v l q ( 1 − κ K 1 ) Two main methods have been used to scale laboratory results to the field. The simplest method involves scaling the laboratory injection rate by the ratio of surface areas (i.e...

... to other recent buildup test analyses performed in the Spraberry area 6 . Step Rate Test on Wells 46 and 47 The step rate test (SRT) was conducted on well 47 prior to the multi-well interference test, with injection rates from 144 BWPD stepping up to 2160 BWPD. Primarily, the SRT is used...

... hydraulic fractures, as well as, the dependence of fracture length on the water injection rate. Tiltmeter fracture mapping identified that hydraulic fracturing occurs even at very low water injection rates (less than 250 BWPD) at the HGEU creating significant fractures (exceeding 400 feet of half-length...

... and reservoir. Any of these conditions may result in pressure responses which appear analyzable, but which give misleading or erroneous results. P. 197 drillstem testing fracture gradient hydraulic fracturing injection injection rate drillstem/well testing skin factor closure pressure upstream...

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... production and injection rates – resulting in a much lower capital investment on surface facilities. Figure 7 shows the staged Phase I project that has been proposed: a total of 32 flood patterns are planned with 8 patterns to be flooded first in 1995, succeeded by 13 patterns in 1997, and then 11...

... reservoir pressure, increasing natural gas liquid recovery, converting to sour reinjection, and exploiting downdip oil potential. history injection rate reinjection water injection bopd conformance reservoir performance curve injection well waterflooding upstream oil & gas soldier...

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... into the effectiveness of these techniques. society of petroleum engineers slaughter field injection well injection profile log analysis open hole production logging coiled tubing drilling operation directional drilling injection rate information production control stimulation new method well...

... potential for further and more detailed studies. In addition some of the problems and limitations associated with analysis of production data are discussed. producer reservoir surveillance injection rate society of petroleum engineers well 101 correlation production rate cross correlation...

... production increased from 670 BOPD prior to waterflood to nearly 4,000 BOPD by mid-1991, a nearly six-fold increase. The initial oil ramp-up was to about 3,000 BOPD within the first two years of water injection, or a four-fold increase in oil production. Water Production: As Unit water injection rates...

... devonian spe 27718 white chert upstream oil & gas concentration brown chert coalescence fracture pressure fracture injection rate chert proppant multizone well procedure conductivity hydraulic fracturing perforation fracture conductivity fracture length fracture toughness...

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... Many questions had to be answered. Among them were: ABSTRACT Knowledge of the formation parting pressure (FPP) is important for efficient operation and surveillance of waterflood projects and CO2 floods. Knowing this information will assist in optimizing recovery by reducing injection rates...

... the injection rate, vertical permeability variation, ordering of beds, mobility ratio and the ratio of vertical to horizontal permeabilities. A five beds, linear model was used under wide range of operating conditions. Based on the study, it was observed that the oil recovery and cross flow index were...

... It is common practice either to inject water at a constant rate and allow the pressure drop to vary with time or to keep the pressure drop constant and allow the injection rate to vary with time. water front in region 1 The pressure drop in any layer j before breakthrough in that layer is (j = l,2,3…,n...

... the before-treatment levels. Since improvement in flow efficiency, observed from the injection rate and pressure data, is on the order of 50 to 60%, the field treatments apparently worked somewhat better than indicated by the laboratory tests. Based on the encouraging results obtained from the trial...

... calculation permeability enhanced recovery cumulative water original oil reservoir pressure kingdom abo reef field consideration upstream oil & gas water injection early implementation full-scale waterflood injection rate SPE 9720 EARLY IMPLEMENTATION OF A FULL-SCALE WATERFLOOD IN THE ABO...