... in place. Over many years, reservoir engineers have looked for some effective ways to control water coning, but only a few successful oil field examples have been reported. Usually, in the presence of bottom water wells are completed in the upper section of the pay zone and produce oil below its critical...

... wojtanowicz dwl installation inspectional analysis reservoir characterization dimensional analysis dwl system dimensionless scaling group installation upstream oil & gas trans rapoport porous media completion dimensionless group international petroleum conference reservoir simulation...

... with extensive instrumentation at Petro-Canada's MacKay River development. The history matched model was then used to conduct a sensitivity study on some of the parameters that affect the circulation of a well pair. First the steam to toe time was examined for the two typical wellbore completions that Petro...

... Abstract Cross SAGD (XSAGD) is similar to Steam Assisted Gravity Drainage except that the horizontal injection wells are placed perpendicular to the horizontal production wells. Some completion restriction near the points where the wells cross can be included in the initial well completions...

..., initially all available information such as petrophysical data, PVT data, production data and pressure build up data of the completed wells in Asmari formation were collected. Twenty one build up tests data were analyzed by using Pan System Software using appropriate model for each well to estimate...

... performance inflow performance reservoir surveillance productivity upstream oil & gas conventional oil production control completion dw well conventional well viscous oil pressure drawdown viscosity heavy oil heavy oil reservoir bottom water water cut production rate water cut response...

... ineffective well completion design causing water saturation buildup at the well, low productivity of oil, and -in the result- well marginalization with unrecovered oil left behind. In this study, numerical reservoir simulation is used to investigate the well completion's length and placement that would...

... inactive and orphaned wells with Downhole Water Sink (DWS) installations and prioritize these reserves according to their success potential. DWS uses two completions, one for the water column and one for the oil column to control water coning. The use of DWS technology is the primary target for this system...

... Abstract Phase trapping refers to the temporary or permanent trapping of oil or water based fluids introduced into a porous media during drilling or completion operations which result in a reduction in the effective permeability to the desired producing or injected phase. This problem has...

... of these wells through the use of dual well completions with downhole water drainage - Downhole Water Sink (DWS) technology. In DWS wells, the top completion produces oil as the water inflow is diverted by the bottom completion acting as water drain (or sink). Described is the first step of the method...

... several issues and pitfalls related to welltesting of tight gas. We are now seeing a large number of disciplines involved with completions. This diverse group is necessary due to the complexity surrounding tight gas reservoirs. Initial reservoir pressure is probably one of the most important "data points...

... the completion and stimulation advancement. Initially horizontal drilling was limited to naturally fractured reservoirs with simple open hole or slotted liner completions. This was due primarily to the ability of the reservoir to flow economically without the need for stimulation. Reservoirs requiring...

... Abstract Dual completion was for a long time used to produce wells perforated on several zones. This type of completion concerns especially the oil wells, but few or not used on the gas wells. In order to improve the production in the upper zone of gas wells, a study was carried out...

... by fracturing or higher permeability interbedded facies Acquiring a large lease base capable of placing large numbers of wells, Designing and field-testing cost-effective drilling, completion, and stimulation procedures that are suited for the specific type of shale gas resources which are essential...

... or sequential exploitation. Commingling thus makes sense only if some of the contributing intervals are otherwise uneconomic to exploit. Some of the conditions favorable to commingled IOR are: Well trajectory/ completions that permit interventions Well completions allowing zonal isolation Surface...

..., not under torsion stress. The use of these rods to drivePCP systems has several limitations and problems. These limitations result in high artificial lift costs. Therefore a reliable high torque rod is required to drive these systems. Tubingless Completions Many gas wells production lives are ended...

... and produce little to no insitu water production upon completion. The most common completion technique is the sequential stimulation of each stringer by the use of coiled tubing. Marginal gas production and intolerance to completion fluids has resulted in evolution of fracturing systems including binary...

... Abstract Downhole water sink (DWS) technology is an alternative to conventional limited-entry completions to control water production in bottom water drive reservoirs. DWS wells comprise two completions: the bottom completion is a water sink that suppresses water cone formation...

... Abstract Commercial coal bed methane (CBM) development is currently in its infancy in Canada. Often the challenge to commercial development of this unconventional resource is to locate reservoir sweet spots and to economically optimize completion and stimulation design for coal gas extraction...

... Abstract The CAR-x1003 exploratory well, drilled in the Caranda field in 1997, proved to be a discovery well of the Robor? Formation. Test interpretation during completion was difficult because of high formation pressures and temperatures. In 2003, an additional test provided critical data...