.... gelant upstream oil & gas production well placement injection fracture gel waterflooding seright wellbore enhanced recovery crossflow pipe reservoir permeability leak application water production problem gel treatment polymer Introduction On average in the United States...

... Abstract This study investigates the effect of horizontal wellbore hydraulics on the early time dynamic behavior of horizontal wells. A finite conductivity model has been developed to couple infinite-conductivity horizontal well model based on uniform flux solution and finite conductivity...

... orientation and elevation of the whipstock tool face with the casing exit window. The technology described in this paper has bearing on TAML Level II 1 junction re-entry operations for clean out, production enhancement, increased reservoir drainage, zonal isolation, and re-completion of lateral wellbores...

... can be substantially reduced using low viscosity milling fluids that easily remove composite cuttings from the wellbore. This is especially important because of the low annular velocities characteristic of coiled tubing operations. The wellbore is left cleaner than those using cast iron bridge plugs...

...-infinite slab model mathematical model wellbore stimulation enhanced recovery treatment regime society evaluation method reservoir surveillance evolution post-treatment productivity production monitoring inverse injectivity hill petroleum engineer production control acidizing intercept...

... the wellbore to determine the nature and depth of the damage. Results show that fines generated during the drilling process form an external filter cake which in combination with xanthan gum results in considerable fluid loss reduction. Damage due to xanthan gum is small and limited to a narrow thickness...

.../falloff testing of coalbed methane and other low permeability reservoirs. Using several field-based examples, potential analysis pitfalls are highlighted including 1) injection above fracture pressure, 2) non-stable reservoir pressure prior to testing, and 3) a poor connection between the wellbore...

... fractured reservoirs from single-well tests. P. 477 hydraulic fracturing wellbore drillstem testing spe 39807 mathematical model reservoir pressure directional permeability fracture system permeability ratio reservoir equation drillstem/well testing matrix permeability interpretation...

... contaminant is desired in formation fluid samples for proper composition and PVT analyses. The contaminant is the drilling fluid filtrate that invaded near wellbore formations during and after the drilling process. The filtrate in the sample compromises sample quality by reducing usable sample volume...

... spe 35223 hn-p process enhanced recovery wellbore injection simulation artificial intelligence production rate co 2 soak period permeability machine learning Introduction CVU Development History The Vacuum Field was discovered in May 1929 by the Socony Vacuum Oil Company...

... of 15,000 square feet in 1995. The difference is due to setting a liner, and a cement squeeze in the mid 70's. A fracture length of 139 feet, and a fracture height of 208 feet at the wellbore, is calculated by using the model. Data described previously indicates injection is in the main pay interval...

... has not been studied by many authors. During the kick, the pressure differential causes pressure transient behavior from the wellbore wall into the bulk formation. Many articles have been published in the area of pressure transient analysis during well testing but have not been applied to the kick...

... pressure. Unfortunately, in many instances such as in low permeability formations, the mudcake is not adequate to isolate the hydrostatic pressure from the formation near the wellbore. As a result, the sandface pressure measured with the formation tester is "supercharged" and not the formation pressure...

... at a constant pressure. The potential distribution around the partially penetrating wellbore is a solution of Laplace or difiusivity equation with uniform potential inner boundary condition (1BC). A new dimensionless variable is introduced. Dimensionless Density , as a function of reservoir geometry, reservoir...

... condition describes the constant flow rate at the wellbore. The complex form of the Laplace subsidiary equation was a limitation in obtaing an exact analytical inversion of the transform. The numerical inversion algorithm developed by Stehfest 5 was used to get the solution in real space. King...

... treatment directional drilling fracture spe 23948 case history spe 23948 well logging wellbore RESERVOIR CHARACTERISTICS Located on the Central Basin Platform in Northern Winkler County, Texas, the Flying "W" Field is a structural trap formed by a north-northwest trending anticline, bounded...

... Based on available data regarding the reorientation process, it is believed that wellbores oriented to produce longitudinal or sub-longitudinal (within a 30° tolerance zone of σ 2 , Figure 2 ) fractures are less prone to the development of flow restriction due to reorientation effects...

... upstream oil & gas limitation cudd pressure control spe 23951 surface equipment connector shear sub toolface orientation wellbore coiled tubing assembly horizontal well bottomhole assembly bop stack INTRODUCTION In the last decade coiled tubing has emerged as an effective means...

... wellbore horizontal displacement operator field rule provide field rule maximum diagonal drilling operation society of petroleum engineers reservoir drainage area statewide rule proration unit displacement drainhole INTRODUCTION Through legislative action the Commission is charged...

... are also presented. spe 20137 calculation drillstem testing closure time acid stage gallon 80 conductivity coefficient wellbore perforation hydraulic fracturing upstream oil & gas friction wing length geometry fluid efficiency minifrac fracture fracture height concentration...