conditions favorable for hydrocarbon reservoir formation

... significant Trang 12during the initial period of the filter cake formation The cake formationmodels developed in this section can be used for predicting the effectsof the compressible filter cakes ... pressure is used to determine the fluid drag forceapplied to the cake matrix; 7 The formulations are presented for general purposes, but applied forcommonly encountered cases involving incompressible ... large particles formthe cake matrix and the fine particles deposit inside the cake matrix; 3 The flow through porous cake and formation, which acts as a filter, is represented by Forchheimer's

Ngày tải lên: 07/08/2014, 12:22

... entrainment, 326 Reservoir Formation Damage migration, and redeposition of fine mineral particles and therefore cause formation damage (Chang and Civan, 1991, 19 92, 1997) Formation damage ... Scaling and Gepchemical Formation Damage Summary Various processes leading to inorganic scaling and formation damage are discussed Special attention is given to formation damage caused ... Tien,etal.(1997) f : Adin(1978) p : Data for the constant pressure case r : Data for the constant rate case s : Static filtration 310 Reservoir Formation Damage (text continued from

Ngày tải lên: 07/08/2014, 12:22

... modeling effortsinto four groups: 1 Aqueous speciation models for geochemical applications, 2 Inverse geochemical modeling techniques for interpreting observedhydrochemical data, 3 Forward geochemical ... constituents of these models as: 1 Mass balance equations for each element, 2 Mass action equations and their equilibrium constants, for ion formation, and complex-3 Equations that define individual ... because the basic data necessary for these models areoften incomplete and/or uncertain (Plummer, 1992) Plummer (1992)* describes the most essential information necessaryfor geochemical modeling and

Ngày tải lên: 07/08/2014, 12:22

... Vol 49, 1985, pp 375-386 Demir, L, "Formation Water Chemistry and Modeling of Fluid-RockInteraction for Improved Oil Recovery in Aux Vases and CypressFormations," Department of Natural ... the surface to the JMU reservoir are likely to contain some dissolved oxygen gas Therefore, Schneider (1997) constructed a pe - pH chart for the oxygenated waters at the JMU reservoir temperature ... Civan, F., "Predictability of Formation Damage byModeling Chemical and Mechanical Processes," SPE 23793 paper,Proceedings of the SPE International Symposium on Formation DamageControl, February

Ngày tải lên: 07/08/2014, 12:22

... ©1996; reprinted by courtesy of Marcel Dekker, Inc.) 4 02 Reservoir Formation Damage 0.3 T Reservoir Pressure 28 0.0 aon Reservoir Temperature, 338.0 *K 25 0 29 0 300 310 320 330 ... Marcel Dekker, Inc.) 400 Reservoir Formation Damage 3000 T 25 00 - 60 70 Temperature, °F 80 Figure 14 -23 Wax deposition envelope for a North American recombined reservoir oil (after Leontaritis, ... is demonstrated for (text continued on page 399) 396 Reservoir Formation Damage 70 00 Upper ADE Boundary 6000- -S* a, sooo H 4000 3000 20 00 140 22 0 180 26 0 300... Reservoir Temperature

Ngày tải lên: 07/08/2014, 12:22

... Engineers) Trang 8Simplified Analytic Model for Asphaltene-InducedFormation Damage in Single-Phase Leontaritis (1998) developed a simplified model for prediction offormation damage and productivity decline ... surface excess of species 1 per unit mass ofporous formation The initial condition is given as: n ea _ ea t — f\ Empirical Algebraic Model for Formation Damage by Asphaltene Precipitation in Single ... thepossibility of the gradual surface deposition, single pore plugging, andin-situ cake formation by pore filling mechanisms in formation damage As can be seen, only the ^K/K 0 vs PV (pore volume) data yields

Ngày tải lên: 07/08/2014, 12:22

... are required for the plugging and 434 Reservoir Formation Damage nonplugging pathways. Consequently, the numerical solution would require highly intensive computational effort. However, ... pressure, both the liquid and vapor phases exist and there is less severe formation damage. 438 Reservoir Formation Damage 2 4 Pore Volume Throughput, PV > Below bubble point-Sutton ... to accelerate. Therefore, Darcy's law is modified as following, considering the inertial effects, according to the Forchheimer equation (Civan, 1996): Formation Damage by

Ngày tải lên: 07/08/2014, 12:22

... 2458 Reservoir Formation Damageeffect for clays and fines in the reservoir, an effect that would be removed by extraction." Fundamental Processes of Formation Damage in Petroleum Reservoirs Formation ... Evaluation of Formation Damage 457bearing formations under actual scenarios of field operations, and forevaluation of techniques for restoration and stimulation of damagedformations are essential for efficient ... Program for Laboratory Formation Damage Testing Recommended Practice for Laboratory Formation Damage Tests* Introduction The following procedure has been designed to provide a methodologyfor assessing

Ngày tải lên: 07/08/2014, 12:22

... permeability,while it is 54% for Mud B Keelan and Koepf (1977) conducted evaluation tests for two differentdrilling mud fluids, specially prepared for stabilizing the formation to Trang 3NO MOBILE HYDROCARBONS ... test sequenceand the equations necessary for determining formation damage for evalu-ation of the compatibility of the injection and workover fluids withthe formation clays Figure 15-18 by Keelan ... (1977) fracturing fluids causeformation damage by water-block, solids invasion associated with fluidleak-off, and clay hydration in the near-fracture formation Therefore, it is important to use

Ngày tải lên: 07/08/2014, 12:22

... additives formed an emulsified sludge with 522 Reservoir Formation Damage 100 10- Injecting i A formation water ( 13% IDS) B fresh water (1 -2% IDS) ' C 50% fresh water + 50% formation ... the flushing of the near wellbore formation in the presence of formation fluids. For this purpose, the cores were restored to their reservoir conditions by a series of displacement ... the resistivities of these mixtures and then 510 Reservoir Formation Damage Table 15-6 Characteristics of Water Mixtures Type Formation brine Supply water 95%(1)-5%' 90%(1)-10%

Ngày tải lên: 07/08/2014, 12:22

... points considered for the finite difference method. 540 Reservoir Formation Damage More points could be considered for better accuracy. Higher order finite difference formulae can be ... (16-35) Thus, the forward difference formula is obtained as, by substituting Eqs. 16-33 and 34 for b { ,b 2 at x = x i _ l =-A;c into Eq. 16-35: [...]...542 Reservoir Formation Damage ... "Evaluation and Comparison of the Formation Damage Models," SPE 237 87 paper, Proceedings of the SPE International Symposium on Formation Damage. .. Predictability of Formation Damage: An Assessment

Ngày tải lên: 07/08/2014, 12:22

... effect the performance of these processes Prior to any reservoir exploitation applications, extensive laboratory, field andsimulation studies should be conducted for assessment of the formationbrine ... and Seyler(1998) for characterization of the brine and mineral compositions and theinvestigation of the formation damage potential in the Mississippian AuxVases and Cypress formations in the ... determined with nonlinear models However, some parameters can be eliminated for less important mechanisms for a given formation andfluid system The remaining parameters are determined by a historymatching

Ngày tải lên: 07/08/2014, 12:22

... plus d’informations This summary of recently issued publications (www.iec.ch/JP.htm) is also available by email Please contact the Customer Service Centre (see below) for further information ... Commission Licensed by Information Handling Services ~ STD.IEC 60332-3-24-ENGL 60332-3-24 IEC:2000 ~ 2000 4844891 0743200 306 -19- Performance requirements The Performance requirements for a particular ... amendment and the base publication incorporating amendments and Informations supplémentaires sur les publications de ia CE1 Further information on IEC publications Le contenu technique des publications...

Ngày tải lên: 25/12/2013, 11:00

... plus d’informations This summary of recently issued publications (www.iec.ch/JP.htm) is also available by email Please contact the Customer Service Centre (see below) for further information ... technology Information relating to this publication, including its validity, is available in the IEC Catalogue of publications (see below) in addition to new editions, amendments and corrigenda Information ... amendment and the base publication incorporating amendments and Informations supplémentaires sur les publications de la CE1 Further information on IEC publications Le contenu technique des publications...

Ngày tải lên: 25/12/2013, 11:01

... the most current Form 1023 Below each figure you will find information related to questions on the form Some suggestions for appropriate answers are provided Part I, Line asks for the organization’s ... to substantiate this fact through the information provided on their information returns (Form 990) filed each year This will be covered later in this book For years up through 2008, if Line 5, box ... an exempt organization for a period of five NFP Organization Formation Figure 2.9 23 Form 1023, Line years Then, after five years, it had to file Form 8734, Support Schedule for Advance Ruling Period,...

Ngày tải lên: 14/03/2014, 00:19

... interactions of formation and fluids, and deformation of formation under stress and fluid shear Formation damage indicators include permeability impairment, skin damage, and decrease of well performance ... biological, hydrodynamic, and thermal interactions of porous formation, particles, and fluids and mechanical deformation of formation Reservoir Formation Damage under stress and fluid shear These processes ... types of formation damage processes encountered in petroleum reservoirs; (4) Optimize for prevention and/or reduction of the damage potential of the reservoir Overview of Formation Damage formation; ...

Ngày tải lên: 23/06/2014, 17:27

... permeability alteration, 694 Problems, formation damage, Program, laboratory formation damage testing, 470 738 Reservoir Formation Damage Pseudo-damage, formation damage, 684 Reactions in porous ... Petrographical characteristics, 49 Petrography, petroleum-bearing formations, 49 Petroleum-bearing formations composition, 12 origin, formation, 11 petrography and texture, 49 sensitivity, mineralogy, ... reporting, tests, 478 by scale deposition, 669 Forward geochemical modeling, 338 I 734 Reservoir Formation Damage Fractal distribution, 60 Friction-drag force and hydrodynamic thinning, 147 Generalization,...

Ngày tải lên: 07/08/2014, 12:21