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Keywords: sandstone
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Proceedings Papers

Paper presented at the SPE European Formation Damage Conference and Exhibition, June 3–5, 2015
Paper Number: SPE-174171-MS
... integrated into the well completion planning and facilities design for the next phase of Breagh Field development. hydraulic fracturing stimulation operation real time system Upstream Oil & Gas gas rate productivity Fluid Dynamics sandstone conductivity flow in porous media yoredale...
Proceedings Papers

Paper presented at the SPE European Formation Damage Conference and Exhibition, June 3–5, 2015
Paper Number: SPE-174282-MS
..., and the resulting databases were reviewed for consistency. Multiple cuttings and core sample sets from conventional sandstones, carbonates, and current mudrock plays such as the Eagle Ford and Marcellus shales were sub-divided and analyzed to allow direct comparisons of generated datasets...
Proceedings Papers

Paper presented at the SPE European Formation Damage Conference and Exhibition, June 3–5, 2015
Paper Number: SPE-174264-MS
... Abstract An existing limitation of chelant-based fluids available for sandstone acidizing with hydrofluoric acid (HF) is the presence of sodium in the concentrate of the aminopolycarboxylate fluid, which is common in all chelating agents soluble below pH 3.5. The presence of sodium...
Proceedings Papers

Paper presented at the SPE European Formation Damage Conference & Exhibition, June 5–7, 2013
Paper Number: SPE-165147-MS
... Abstract Sandstone acid systems, which are composed of HCl and HF, are commonly used to remove the formation damage in sandstone reservoirs. However, to perform any treatment using these acid systems, a preflush and/or a postflush of HCl plain acid must be injected to eliminate CaF 2...
Proceedings Papers

Paper presented at the SPE European Formation Damage Conference & Exhibition, June 5–7, 2013
Paper Number: SPE-165142-MS
... drilling fluid selection and formulation drilling fluid formulation fluid treatment sequence flow rate drilling fluids and materials flow test PPM Brine treatment sequence APCA spe international symposium drilling fluid property Upstream Oil & Gas concentration sand pack sandstone...
Proceedings Papers

Paper presented at the SPE European Formation Damage Conference, June 7–10, 2011
Paper Number: SPE-143497-MS
... Fig. 1 Mercury injection pore diameter from an onshore South Asia Sandstone sample As mentioned above, one problem with mercury injection is that it may not detect the largest pores or pore throats present in a formation. The low pressure part of the mercury injection test that measures...
Proceedings Papers

Paper presented at the SPE European Formation Damage Conference, June 7–10, 2011
Paper Number: SPE-143788-MS
...) 6HF ( aq ) +SiO 2 *2H 2 O ( s ) → H 2 SiF 6 ( aq ) +4H 2 O ( aq ) Abstract The CaraCara field in the Los Llanos area of Colombia is a highly permeable (1 − 3 Darcy) sandstone with more than 10% total clay content...
Proceedings Papers

Paper presented at the SPE European Formation Damage Conference, June 7–10, 2011
Paper Number: SPE-143941-MS
... geomechanical model. The results of the PEA 182 tests were used to test the veracity of the FEA methodology. An excellent fit to the experimental data was achieved, both for unconsolidated sands and weak sandstones. The FEA model of the ESS formation interaction is very versatile and has been used to study a...
Proceedings Papers

Paper presented at the SPE European Formation Damage Conference, June 7–10, 2011
Paper Number: SPE-144173-MS
... hydraulic fracturing fracture face proppant pack differential stress fracturing materials upstream oil & gas sandstone rock-proppant interface proppant tensile stress concentration permeability reduction tensile stress mechanically quartz grain fracturing fluid experiment mpa...
Proceedings Papers

Paper presented at the 8th European Formation Damage Conference, May 27–29, 2009
Paper Number: SPE-122180-MS
... hydraulic fracturing fracture growth Hall plot waterflooding reduction fracture gradient kgf cm2 fracture pressure Injection Rate injection flow in porous media Fluid Dynamics sandstone multiple fracture hydraulic fracture enhanced recovery Upstream Oil & Gas deviation...
Proceedings Papers

Paper presented at the European Formation Damage Conference, May 30–June 1, 2007
Paper Number: SPE-107636-MS
... Abstract Sandstone acidizing is very challenging because of the complex reactions that occur between the multiple-stage treatment fluids and the formation minerals. Such reactions are more likely to occur at elevated temperatures and can result in potentially damaging precipitation reactions...
Proceedings Papers

Paper presented at the SPE European Formation Damage Conference, May 25–27, 2005
Paper Number: SPE-95019-MS
... heterogeneous Lower Cretaceous Sandstone at a depth of about 12,000 ft. The drive mechanism is solution gas drive since the underlying aquifer was found to be inactive. Low porosities of 10 to 14 % and poor permeability ranging from 0.1 to 20 mD allow only a low to moderate production, which hampers the...
Proceedings Papers

Paper presented at the SPE European Formation Damage Conference, May 25–27, 2005
Paper Number: SPE-94465-MS
... productivity and reduce environmental issues in these mineralogically immature (dirty), unconsolidated sandstone reservoirs. The first-applied viscoelastic surfactant (VES) carrier fluid used a cationic surfactant; the newly developed fluid systems use anionic and zwitterionic surfactants. Laboratory testing...
Proceedings Papers

Paper presented at the SPE European Formation Damage Conference, May 25–27, 2005
Paper Number: SPE-94527-MS
... failure on permeability for a weak sandstone. A yield zone model was used to determine the depth of rock failure away from the wellbore and the effective stresses in the yield (failed) zone. The permeability changes were coupled with the yield zone model to predict the evolution of skin during depletion...
Proceedings Papers

Paper presented at the SPE European Formation Damage Conference, May 25–27, 2005
Paper Number: SPE-94566-MS
... penetrate much farther into the formation and bypass the formation damage rather than dissolve it. There is experimental evidence that wormholing on a smaller scale can occur in sandstone formations. The purpose of this study was to determine the treatment conditions and formation characteristics required...
Proceedings Papers

Paper presented at the SPE European Formation Damage Conference, May 25–27, 2005
Paper Number: SPE-94790-MS
... Abstract Matrix acidizing of sandstone formations in Western Siberia, Russia has been a technology application that has been largely ignored by operators in this area. Poor acidizing practices and difficult mineralogies have lead to poor results from matrix acidizing treatments applied in the...
Proceedings Papers

Paper presented at the SPE European Formation Damage Conference, May 13–14, 2003
Paper Number: SPE-82260-MS
... matrix acid stimulation sandstone reservoir scale inhibition paraffin remediation acidizing drilling fluid chemistry matrix reaction inhibitor drilling fluid formulation mineral production chemistry application asphaltene inhibition oilfield chemistry drilling fluid property...
Proceedings Papers

Paper presented at the SPE European Formation Damage Conference, May 21–22, 2001
Paper Number: SPE-68930-MS
... upstream oil & gas sandstone matrix permeability montgomery spe 68930 zhu skin factor acidizing drillstem/well testing university flow in porous media simulator injection phillips petroleum co drillstem testing radjadhyax mineralogy schechter information prediction acid...
Proceedings Papers

Paper presented at the SPE European Formation Damage Conference, May 21–22, 2001
Paper Number: SPE-68977-MS
... sandstone delft university drilling fluid formulation drilling fluid chemistry produced water discharge drilling fluid property van den broek water re-injection setup sandstone specimen experiment permeability decline drilling fluids and materials visual observation particle...
Proceedings Papers

Paper presented at the SPE European Formation Damage Conference, May 21–22, 2001
Paper Number: SPE-68921-MS
... migration. In addition, there was concern that filter cake from the synthetic drill-in fluid could still be in place and would provide some restriction to optimum production rate. A HF sandstone acidizing treatment incorporating a CO 2 preflush process for matrix oil well stimulation was recommended...

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