.... The results are plotted as a set of log-log type curves in terms of a decline curve dimensionless rate, equation qdd fit oil reservoir spe 70036 fitting parameter pressure transient analysis drillstem/well testing type curve original oil flow rate production forecasting injection fetkovich...

... Abstract The cessation of CO 2 injection may be the result of poor reservoir response, low oil prices, or near the end of a CO 2 project. The focus of this paper is to describe the effect of CO 2 injection curtailment on oil recovery and production in a technically successful CO 2 flood...

... compared with less-costly corrosion solutions (such as internal plastic coatings (IPC) and thermoplastic materials like HDPE and PVC). Next, actual case history economic data is presented to qualify the use of Glass Reinforced Epoxy-lined tubular goods over IPC for corrosive seawater injection service...

.... gelant upstream oil & gas production well placement injection fracture gel waterflooding seright wellbore enhanced recovery crossflow pipe reservoir permeability leak application water production problem gel treatment polymer Introduction On average in the United States...

... injection was terminated in the mid-1990s. In 1994, however, miscible flooding was reinitiated in the reef margin area of the field using horizontal injectors and reduced well spacing. The reef margin is an area of thick, stacked pay that experienced high gravity override during the original miscible flood...

... Abstract Ras Budran field is a massive Nubian sandstone reservoir compartmentalized by major faults acting as partial barriers. Vertical communication is impeded by hydraulically sealing shale layers in the development of three main pressure regimes. A combined water injection and aquifer...

... Abstract To date, field wide CO 2 flooding is continuous or WAG injection processes. In individual wells a huff’n’puff scheme has been used where CO 2 is injected into a well followed by a shut-in period; after a predetermined time, the well is produced. Each of these methods have practical...

... in February 1964, with full-scale water injection beginning shortly thereafter. CO 2 injection began in December 1984. The wells in the CMU are completed with approximately 150 ft of 4 +-in. open hole, which increased the difficulty of choosing an appropriate placement technique The CMU was developed...

.... high salinity formation injection combination system application concentration interfacial tension upstream oil & gas synergistic effect sulfonate surfactant phase graph salt content surfactant oil displacement system society of petroleum engineers spe 70047 salt concentration...

... and a successful chemical program have greatly reduced the cost of these problems over the last 3 years. A new inhibitor for continuous capillary injection was recently developed and performed well on live oil lab tests. To evaluate the field performance of this new asphaltene inhibitor, a wellhead side stream...

... Abstract The Denver Unit CO2 flood, one of the largest in the world, was implemented in 1984. CO2 injection was subsequently expanded in 1989 and again in 1991. By 1994, this 10 year old CO2 flood had a well-established decline in its production function. Through infill drilling and pattern...

... layers. It seems possible to improve the profitability of producing from heterogeneous reservoirs by diverting the injected water from preferentially flowing through high to low-permeability zones. The profitability improves because of a small increase in ultimate oil recovery and/or a large reduction...

... dominated southern California reservoir. We further describe simulations for crosshole EM imaging in carbonates for a WAG (water alternating gas) process where the technique is used for initial site characterization and to monitor saturation changes during the injection. fracture resistivity society...

... installation and operations production monitoring reservoir characterization injection Introduction Intervals along the core were selected for minipermeameter 2 analysis based on the following criteria: presence of oil and permeability according to the special core analysis, 1 visual...

... 38, 39 and 40 serve as the observation wells for the multi-well interference test, so buildup tests were done prior to injection in the pulse wells. The tests showed that the effective permeability ranges from 0.01 to 0.03 mD, with skins of ‒4.5 to ‒5.6. The average reservoir pressure...

... injection and, if fracturing occurs, to understand its associated impacts on oil recovery. If hydraulic fracturing occurs under normal injection operating conditions or, if the production and/or injection wells are fracture stimulated, knowing the orientation and dimensions of the created fractures...

... Abstract Analysis of numerous injection/falloff tests in the field, primarily on coalbed methane wells, has led to a better understanding of the requirements for proper injection/falloff testing. Because most of the formations do not flow prior to testing, test design is difficult and many...

... Abstract Carbon dioxide injection in the Dollarhide Devonian reservoir commenced in May 1985. Subsequently, CO injection was expanded to an area of the majority southern fault block. As of May 1995, CO injection has been implemented in the entire Devonian formation in five phases. Hybrid CO...

... of a foam predictive ease are presented. The injection schedule of the foam predictive ease was specifically selected to mimic the filed injection schedule used in the foam pilot test at EVGSAU. The simulated results are consistent with the field pilot test results. Overall, the foam model is found...

... fractured reservoir injection SPE 39802 W. 9 . SocietyofPetroleumEngineers Gel Treatments for Reducing Channeling in Naturally Fractured Reservoirs R. S. Seright, SPE, and Robert Lee, SPE, New Mexico Institute of Mining and Technology QWght t 998. *ety of Petroleum Enginssrs, Inc. mis paperm ~ b ~ at me...