... thin oil column. Tilted contacts were encountered in the targeted subunits where actual current contacts came in ~20ft shallower at heel and ~10ft deeper at toe compared to prognosis. Consequently, the heel landed at a 5ft stand-off from water, and the toe landed 18ft stand-off from water and 6ft stand...

... 40% to 46%, resulting in approximately 2,300 BOPD through multiple perforations. Maintaining the oil column sandwiched between gas and water is the standard practice to maximize oil recovery in a strong water-drive reservoir. Despite having a strong aquifer and a thick gas cap, Reservoir X-7 has...

... for this purpose. A late gas charge into an oil reservoir can yield a gas cap above initially undersaturated oil. Gas diffusion into the oil column then increases solution gas (GOR) which has the effect of decreasing asphaltene solubility in the crude oil. This can cause asphaltenes to diffuse away from the region...

... The reservoir contains a thin oil column between a small gas cap and strong bottom-drive aquifer. The oil will be produced via subsea tie-in to an existing production system and a floating production, storage and offloading facility (FPSO), the Ningaloo Vision (NV), located approximately 10 km...

... gas-oil and oil-water capillary pressure data, modelling of initial water, oil and gas saturation distribution remains a challenge in the study. The state of initial water saturation in the field particularly in the thin oil column is believed to affect the water encroachement behavior into oil...

... to the development of a new geological model. Subsequently the decision was made to develop the Woollybutt South Field, which is dominated by this poorer reservoir; the basal Mardie Greensand. Woollybutt is operated by Eni Australia (65%) with partners Exxon Mobil (20%) and Tap Oil (15%). oil column upstream...

... petroleum engineer spe 122600 block 55 reference case society of petroleum engineers production logging brunei recovery dts temperature profile smart completion oil column fluid fill Introduction The Champion West field is situated approximately 90 km offshore Brunei in around 50 m water...

... wells were utilized to improve oil recovery in shaly sands and to reduce water coning in thin remaining oil columns. Horizontal drilling best practices were applied during well planning and drilling executions, such as optimum well designs, specific LWD/MWD tool selections, low fluid loss drilling...

... (AI), generated from 3D seismic inversion, proved to be an effective measure for identifying subsurface sandbody/coal from shale. The sum of negative AI values showing single sandstone in local well region as well as whole sandstone within an oil column was mapped. This provided a sound base...

... reservoirs, and stacked reservoir systems. Successful use of horizontal well technology requires an integrated team approach that incorporates all available data to justify a business case for drilling the well. The 37B sand in the Platong field has a 30-foot oil column, a small gas cap and a large...

... of stacked meander channels, characterised by fining upward sand bodies overlain by thin claystones and coal. The uppermost unit, Unit 1, represents lower delta plain sediments, consisting predominantly of thick distributary channel sands. The Zeepaard Formation oil column in the Griffin Field occurs...

... from 50 wells, gradually declined and currently production is maintained at about 25,000 Bopd by continuous infill drilling/redrilling and workovers ( Fig. 4 ). Cumulative production as of October 2000 is 597.1 MMBo of oil and 1.29 Tcf of gas. Abstract Exploitation of ultra-thin oil columns under...

... contacts are presented. The paper also discusses specific operational strategy used in drilling, completing, and producing these horizontal wells. Results from the lookback provide guidelines and refinements for our continuing implementation of horizontal wells to optimize thin-oil-column development...

... Abstract Exploitation of thin oil columns sandwiched between gas cap and water leg poses a unique challenge for reservoir development of many of such reservoirs worldwide, especially for those with high permeability and strong aquifer support. Issues important for reservoir management involve...

... remains the largest factor contributing to reserves uncertainty. P. 497 upstream oil & gas interpretation scenario tree oil saturation scenario project team presdm dataset velocity uncertainty spe 50154 society of petroleum engineers development plan oil column development well...

... drill depth to be ten feet above the water-oil contact (25 ft. below the gas-oil contact on the estimated 35 ft. oil column). Worst case cumulative error in TVD measurement from surveying calculated to about 15 feet either above or below the desired horizontal well depth for a 2000-foot horizontal...

... Abstract This paper discusses the changing role of reservoir engineering in the various stages of a marginal development offshore Western Australia known as the Airlie Project. The project, which comprises three thin oil column fields, South Pepper, North Herald and Chervil, was made possible...

.... Development drilling commenced in April 1988 and is expected to end in 1991. Bream is being developed initially as an oil field prior to eventual gas cap blowdown. To maximize oil recovery, produced gascap gas is reinjected to stabilize the oil column. A major factor influencing recovery is reservoir...