... 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...

... Abstract Acidizing is often applied in horizontal wells to improve well performance. Acidizing in horizontal wells differs significantly from the acidizing of vertical wells. The length of acid contact is much longer, the formation properties over the contact length likely vary in a larger...

... of the seven horizontal wells drilled in Midland Operations employed short radius profiles, while the remaining three where intermediate radius horizontal wells. As mentioned, the typical wellbore of Permian Basin slim hole programs is 4 3/4-in. in diameter. However, the introduction of the 3 7/8- in. and 4 1...

... Abstract The objective of this work was to investigate the viability of converting existing conventional vertical wells to horizontal wells with multiple transverse fractures in targeted reservoirs. These reservoirs can be characterized as two thin, low permeability layers with no crossflow...

... As horizontal drilling increased, operators began calling for The Railroad Commission to adopt special field rules to regulate horizontal wells in individual fields. In response, the Railroad Commission began issuing special field rules for horizontal wells in 1989. 3 Special field rule...

... upstream oil & gas lateral horizontal drilling directional drilling horizontal well plug screening criteria permian basin successful completion reservoir completion Introduction Horizontal drilling activity in the United States has centered around the Austin Chalk (southeast Texas...

... Unit's slow decline and moderate waterflood recovery presents an interesting reservoir challenge. Could horizontal wells economically accelerate production and increase waterflood recovery? How should horizontal wells be drilled in the existing five spot patterns, with a multi-layered carbonate reservoir...

... Abstract The potential for severe formation damage around horizontal wells exists due to the increased time of formation exposure to the drilling fluids as compared to the time that a vertical well is exposed to these fluids. This paper explains that the combined effect of the formation damage...

... and Ertekin 6 evaluated the performance of horizontal drainage wells in coalseams using a two phase, numerical simulator. The authors were modelling multiple horizontal drainholes radiating from a vertical shaft. The semi-analytical solution for a horizontal well in a coalseam reservoir was developed...

... ABSTRACT A model has been developed to optimize sizing the staging and brake horsepower requirements for an electrical sub-mersible pump (ESP) in a solution-gas-drive horizontal well. Three components are examined by the model, reservoir in-flow performance, casing and tubing outflow...

... ABSTRACT This paper describes the potential benefits of using combinations of horizontal injection and production wells for EOR processes or waterflooding. Our results show that a very favorable configuration occurs when two opposed horizontal wells are drilled from injection and production...

...Horizontal Well Efforts in the Spraberry/Dean The concept of drilling a horizontal well in the Spraberry trend was proposed as early as September 1951 by Legendre. 24 He mentioned that one operator was planning a drainhole in the Spraberry, however any such early attempts went unrecorded...

... operation permeability directional drilling consideration communication restriction wellbore flow restriction horizontal well upstream oil & gas vertical well fracture simulator initiation scenario reservoir longitudinal spe 23950 INTRODUCTION As the costs associated...

... of three horizontal wells have been drilled in the Austin Chalk formation in Texas. These wells consisted of two 4 1/2" (114 mm) reentries in the Pearsall Field and one 5 1/2" (140 mm) reentry in the Austin Chalk near Bryan, Texas. To our knowledge these are the first horizontal wells to be drilled using...