... ABSTRACT Reservoirs with a fluid bank, or a buming front, reservoirs with a reduced or an increased permeability region around the wellbore, and geothermal reservoirs are often modeled as composite reservoirs. Reservoirs with a fluid bank include reservoirs undergoing waterflood, chemical flood...

... from the unsteady-state floods. This is an apparent reflection of the fact that steady-state floods are typically conducted at lower flow-rates than unsteady-state floods. interaction water-oil relative permeability porosity residual oil saturation relative permeability reservoir...

... ABSTRACT This article gives a preliminary analysis of the impact of application of horizontal drilling and production techniques on the economy of offshore reservoir developments. If we consider wells with a medium and long radius of curvature ensuring horizontal drilling in reservoirs...

... ABSTRACT Whilst the incremental oil potentially recoverable by the application of enhanced oil recovery (EOR) processes can only be reliably estimated by a detailed study of each reservoir, in order to provide an early guide to the scope for EOR in Malaysia, a preliminary survey has been...

... ABSTRACT The Snapper field, which is located in Bass Strait, offshore south-eastern Australia, contains a large gas reservoir, the "N-1", with an 8 metre "pancake" oil leg. While Snapper was developed primarily as a gas field, initial work has concentrated on maximizing oil recovery prior...

... ABSTRACT A new flood monitoring technique is presented that models both the capture cross section (sigma) and ratio/porosity responses of a pulsed neutron logging tool using known reservoir, hydrocarbon and flood agent properties. Open hole logs and pulsed neutron logs acquired before, during...

... ABSTRACT The purpose of this paper is threefold:(1) to present a method of buildup analysis (RHM) that can determine the percentage of reservoir column open to the wellbore which is contributing reservoir fluid, (2) to determine the average permeability of the permeable portion of the reservoir...

... for an inverted 7-spot waterflood pattern, the final optimum plan was assessed to be a combination of 5-spot and peripheral injection. sandstone east fault block injection water injector reservoir water viscosity viscosity waterflooding 5-spot pattern waterflood pattern tabu relative permeability...

... that reservoir management techniques to control water and gas coning can be applied without sacrificing oil rate. Completions are described which illustrate how pump installations and wireline activities are limited to the upper sections of the high angle holes. Also described are techniques which will use...

... ABSTRACT A numerical two-phase model is developed to simulate the production performance of the Hobara-type water-dissolved natural gas reservoir in Japan. By using this model, the behavior of producing gas-water ratio and reservoir pressure is matched successfully. This paper also presents...

... ABSTRACT This paper describes the simulation of the Arun gas condensate reservoir using Mobil's fully compositional simulator, COSMOS (Compositional System Mobil Oil Simulator). The reservoir is a Miocene carbonate reef complex which occurs at a depth of approximately 10,000 feet, and is up...

..., the characteristic behavior of a reservoir with a linear barrier could be distorted if the distance, d, is short and/or the wellbore storage duration is long. The effect of wellbore storage could be easily eliminated or reduced if the downhole flowrate is measured and analyzed along with the bottomhole pressure...

... ABSTRACT An engineering evaluation was conducted to determine development feasibility of a heavy oil prospect located in the UK sector of the North Sea in 348 ft of water. The reservoir is located at approximately 3,000 ft. The matrix is highly unconsolidated and contains crude oil...

... ABSTRACT A vertical, or deviated, well, remains in a reservoir for a short distance only. Horizontal wells remain in the producing formation for several hundred meters, providing better productivity conditions. ELF AQUITAINE and IFP (French Institute of Petroleum) have initiated, in 1978...

... ABSTRACT In 50-75% of reservoirs, porosity and lithology can be successfully determined by well log analysis using crossplot techniques. This method is particularly useful when the reservoir is a shaly sand or carbonate sequence. In complex lithologies, with an abundance of accessory minerals...

... – presented at the SPE 53th Annual Fall Technical Conference and Exhibition , Houston ( 1980 ) Westaway P , Hertzog R and Plasek R E : " The Gamma Spectrometer Tool: Inelastic and Capture Gamma-ray Spectroscopy for Reservoir Analysis ", SPE 9461 – presented at the SPE 55th Annual Fall...

... recovery operation subsea system platform subsea manifold weather condition upstream oil & gas manifold gas lift hose reservoir bop stack inspection export riser artificial lift system riser tanker weather wireline work downtime gas injection hawser 5th Offshore South Eost Asia...

... low drainage rates by the present wells due to iow reservoir permeability, prompted investigation of infill drilling in the field. This is still under consideration, but any develooment could be based on new wellhead platforms, flowing via 2-phase pipelines to Dan C. The increased oil production from...

... ABSTRACT A commercial reservoir simulator capable of simulating operational changes in a steam flood was used to investigate the effect of steam slug size, water injection temperature, water injection rate and pattern lifting capacity in converting from steam to water injection. Inverted seven...

... ABSTRACT Carbonate reservoirs, particularly those of Tertiary age, contribute significantly to South-East Asia's oil and gas production. There is considerable potential for more carbonate fields to be discovered in the future, because much of the region is still under-explored. Well logs...