... High Temperature (1,84 °F / 100ft) – 320°F (160°C) @ 13450 ft ▪ Oil-based Mud (OBM) with an Oil-to-Water (O/W) ratio of 75/25 and density between 11.9-12.4 ppg (1.43-1.49 sg) ▪ Gas-bearing reservoir layers Pressure points were acquired in the open hole, resulting in: ▪ maximum PG...

.... Abstract Based on the history of cementation of 9-5/8″ heavy casing design in NEB field, all the wells are cemented with lead (10.0 ppg – 12.7 ppg) and tail (15.8 ppg), where during the cementation pure cement is gained in surface. Based on the Cement log, the lower area (Tail) is accepted and some...

... programme and mud loss contingency plan of the wells. The wells were drilled with 10 ppb of the optimum mud compounds and the concentration was monitored and maintained throughout the drilling. In the first well, the maximum ECD exceeded the in-situ fracture gradient of the depleted reservoir by 1 ppg...

...-Low Density RDF NAF with minimal fluid invasion characteristics was developed after extensive lab testing, to cover the fluid density from 7.2 – 8.0 ppg. The fluid properties were optimized based on reservoir requirements and challenging bottom-hole conditions. The design criteria benchmarks and field...

... are based on local best practices and not supported by any engineering study, for example using 1.5 ppg at the rate of 1.5 BPM. To have a proper understanding of the fluid level the bottom hole assembly (BHA) is equipped with an equivalent static density (ESD) sensor was used. As continuous mud cap...

... Density (ECD) to be with the minimum overbalance. MPD allowed drilling the section with (12.0 ppg) mud weight instead of the conventional mud weight (15.7 ppg). This has reduced the differential pressure between the depleted formation and the other formations significantly and enhanced the rate...

... deformable ppg flow in porous media quantitative matching relation particle size enhanced recovery Fluid Dynamics particle migration pore throat pressure curve PPG particle effluent liquid permeability condition ppg flooding experiment permeability injection pressure curve reservoir...

... of 17.5″ and 12.25″ were also drilled successfully with Base Oil A. All drilling fluids properties were achieved as per drilling specifications although the maximum required mud weight which was prognosed to be approximately 16.5 PPG was confirmed as14.6 PPG in the field. The mud weight was gradually...

... Abstract Water channeling becomes severer after long time of water flooding especially in heterogeneous oil reservoirs. Field applications of deformable preformed particle gel (PPG) in China has proved that injection of PPG can lead to flow diversion, increase sweeping efficiency and thus...

... cement mud weight drilling fluid management & disposal drilling fluid formulation cementation water influx section TD hole section onshore drilling fluid property Upstream Oil & Gas water flow potential ppg water flow post cementation multidisciplinary approach Western Region...

... integrity geomechanics shale ppg Wellbore Design pore pressure geomechanical model Drilling Hazard mud weight instability mud weight window wellbore instability serious drilling hazard Reservoir Characterization Upstream Oil & Gas deviation horizontal stress Drilling complication...

... SBP BHA Drilling well control hole section influx society of petroleum engineers objective ECD shakal block ppg application annular pressure drilling Introduction Managed Pressure Drilling (MPD), as a discipline or drilling technique, helps optimize drilling performance...

... and technical challenges faced while drilling the directional trajectory and in the special workover operations. 36" surface hole was drilled to a depth of 1278′ with 9.6 ppg mud and 30" casing cemented. The 28" hole was drilled to a depth of 5,969′ with 98% returns. Observed losses from Radhuma formation...