.... These expressions are related to a vertical and a horizontal well with a single-fracture production. The flow in a fracture that is coupled to a horizontal well is of uniform flux (or of infinite conductivity flow) and the fractures can be positioned transversally or longitudinally. To successfully measure...

... works. Different aspects of the phenomenon are discussed including sinusoidal (lateral) and helical buckling and influence of torque. torque derivation drillstring design houston horizontal well friction expression buckled pipe wellbore lubinski miska artificial intelligence pipe...

... are expected to hold by the present workable equations, because the single-phase flow description can be expressed in terms of the same dimensionless form as the two-phase flow description. Further, the single-phase flow description is more accurate than the two-phase flow description, because the latter has...

... direct interpretation methods, auxiliary functions, and graphical and analytical methods, and offers a possibility of determining the relative permeability functions from constant pressure and constant rate displacements data. expression direct interpretation method relative permeability...

... derivative response skin effect semilog straight line spe annual technical conference reservoir surveillance reservoir characterization open segment flow in porous media production control horizontal-well response horizontal well formation damage directional drilling effect expression drilling...

... ABSTRACT This paper studies the wall contact force, frictional drag, and slackoff load transmission for tubulars in inclined and horizontal wellbores. The wall contact force of helically buckled tubulars in horizontal and inclined wellbores shows to have the same expression as that in vertical...

... coast to the wall. For small particles the stopping distance is small compared to the boundary layer and consequently diffusion dominates. The proposed expression for the particle stopping distance is( 10 , 11 ): (2) S = 0.05 ρ pd 2   V avg f / 2 μ + d 2 ρ...

... management & disposal filtration reservoir simulation production monitoring expression fluid dynamics fluid loss control formation damage penetration anisotropy drilling fluid selection and formulation measuring skin skin while drilling spe 29526 united states government reservoir...

... − d p m e a s ( t j ) d ln t ) = 0. In this work, we employ analytical expressions for the partial derivatives with respect to each reservoir or well parameter. Parameter optimization is achieved using a public-domain Levenberg-Marquardt 4 algorithm from Argonne...

... steady state layer flow rate transient wellbore pressure united states government production control history production monitoring example 1 expression flow rate drillstem/well testing spe 25423 reservoir surveillance elapsed time pressure and layer flow rate production logging wellbore...

... states government expression boundary calculation approximation INTRODUCTION Reservoir fluids are associated with a large quantity of energy, the magnitude of which depends on the pressure and temperature distribution throughout the reservoir. During production, the fluid energy is converted...