... to be formed at the points of contact of the jet with the rock, with wormholes forming beyond the cavity. Jetting has been shown to be an effective technique for placing acid along extended reach laterals, removing filter cake, and enhancing wormhole propagation. The velocity of the impinging jet and its...

..., and sensitivity to contacting fluids—it is difficult to evaluate fluid flow with traditional laboratory methods. Nuclear Magnetic Resonance (NMR) technology has been explored to study the propagation of fracturing fluids inside shale cores before fracture initiation. All fluids were injected at pressures less...

... drilling operation spe 151560 hydrochloric acid oil saturation core plug propagation emulsified acid Introduction Stimulating carbonate rock with concentrated hydrochloric acid is a normal practice for enhancing the permeability around the wellbore or bypassing theformation damage...

... damage. This paper presents a study on the creation and propagation of water hammer due to rapid shut-in of water injectors. Water hammer 1 - 4 or pressure surge, is a pressure transient phenomenon which has long been known to occur as a result of a sudden change in fluid flow velocity. In water...

... publications (1-2), fracture stiffness and propagation were addressed during FracPacks. Considerations of both factors provide new design basis for proppants and injection schedules to optimize treatments. The current paper addresses the leak-off and compaction responses during FracPack jobs and post-fracture...

... injection fluid flow rate zone 1 perforation pressure drop zone 2 injection hydraulic unit propagation flow distribution in-situ stress water injection injection pressure injection rate log Injection Rate fracture pressure produced-water injection courtsey spe 98216 waterflooding...

... fractures (though "normal" fracture models are still mistakenly utilized in these situations). 1D loss is valid if the fracture propagation is greater than loss velocity, and this condition is NOT true for water flood induced fracturing. Is this true for high permeability fracturing - with fluid efficiency...

... alpha plus beta wave displacement options. displacement gp sand propagation concentration flow rate bed height open hole wave propagation directional drilling prediction gravel hydrostatic pressure friction loss diameter drilling operation col upstream oil & gas equation...

... Abstract A case study involving power water injection in the fractured Arab-D carbonate reservoir in a Saudi Arabian field is discussed. The study was conducted to investigate the role of injection operations in the initiation and propagation of induced fractures and their communication...

... Abstract Hydraulic fracturing injection experiments were performed in unconsolidated sand under stress to delineate the mechanisms controlling fracture propagation and to determine the effect of these mechanisms on potential formation damage. The tests included injection of cross-linked guar...

... Abstract LJ oil field is a massive oil pool with vertical fracture propagation, which needs applying fracturing-stimulation treatments for commercial production. The main oil-containing pay S3 is between 150 m and 200 m without obvious barrier layers. To meet the requirement of three layer...

... wormhole density breakthrough upstream oil & gas fredd optimum injection rate well intervention acid characteristic efficiency wormhole formation production enhancement spe 58713 propagation hcl-calcite evolution enhanced recovery formation buijse downhole intervention fogler...

... horizontal well propagation hydraulic fracturing upstream oil & gas wellbore initiation pressure fracture geometry near-wellbore fracture geometry spe 39425 fracture initiation post-treatment production fracture initiation pressure production rate pressure loss orientation net pressure...

... did not acidize the perforations prior to gravel packing. Comparisons between this well and open-hole horizontal gravel packs are made. P. 463 gravel pack slotted liner fluid loss propagation placement horizontal gravel pack pipe productivity packing orientation horizontal gravel...

... Abstract To understand the acid propagation and the dissolution pattern development in carbonate acidizing, one has to tackle with numerous problems. For instance, the length of the wormholes has to be determined, information has to be gathered on the shape of the wormholes, i.e. single versus...

... by the practicing engineer. Field examples illustrate some of the key techniques. wellbore fracture proppant drillstem/well testing drillstem testing conductivity graph stress test productivity reservoir propagation evaluation fracture conductivity spe 23805 soft formation fracture height...