... 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...

... other option is to control gas production to maintain the original gas cap. Based on the original field development plan in 1986, the reservoir depletion strategy was to produce the oil column by controlling gas production. This strategy was selected because an increase in both GOR and watercut...

... 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...

... of a biodegraded oil column. A novel approach to evaluation of inflow control devices (ICD) and its implementation in the well design. An ICD modelling tool developed specifically for direct comparison of different ICD geometries. The paper also presents the field history to date – from the early...

... saturation dynamic model recovery factor reservoir characterization pressure data assessment oil column reservoir simulation modeling spe 145867 gas production residual gas saturation saturation gas recovery history recovery aquifer september 2005 production strategy pgwc Introduction...

... was the reason for the well being low to prognosis. A thin 2m oil column was interpreted in the basal Mardie Greensands of the Woollybutt-5A well supported with mud log gas shows and significant oil staining evident from a conventional core taken over the interval. Gas chromatograph results of the oil extracted...

... 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...

... 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 for identifying reservoir targets...

... 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...

... characterization accumulation unit 2 drilling sequence reservoir upstream oil & gas perforation oil column workman slate zeepaard reservoir spe 77920 griffin development birdrong reservoir completion installation and operations griffin-1 griffin-6 st1 reservoir simulation griffin-8 bhp...

... less with thinner oil columns, horizontal drilling becomes more costly as it requires more accurate geological interpretation and sophisticated equipment that would have negative effect on the project NPV's. To alleviate risk and improve economics, feasible options to be considered are (i) short...

... 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...

... an "ultra-thin" 33-foot oil column encompassed by both a gas cap and aquifer (see simplified cross section, Figure 1 ). Vertical wells in this field produce at low oil rates and yield marginal to non-commercial economic results. The paper details efforts to numerically model the optimum case for vertical...

... 500-1000 md. Net to gross ratios are greater than 95% and effective porosities vary between 15% and 28%. Figure 3 illustrates the typical open hole log signature of wells drilled in Airlie Project fields. The South Pepper and Chervil oil columns, 10m and 7.5m gross thickness respectively, are each...

.... 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...