... well with a single finite conductivity vertical fracture, where a Taylor Series expansion is used to obtain an asymptotic solution for early-time flow, which includes terms for wellbore storage and fracture conductivity. The well-testing derivative of this result is then obtained and is of a similar...

... of pseudo-pressure m ( p ) as shown in equation (3) and applied it to the gas flow equation to obtain equation (4) : Abstract Haynesville shale gas wells are operated over a wide range of back pressures, varying from 8000 psi or higher at early time to 1000 psi or lower at late time. Traditional...

... deconvolution von schroeter loglog plot buildup artificial intelligence simulation early time method 3 deconvolve well-test data information spe 132478 drillstem testing initial pressure deconvolution process limitation new method wellbore storage optimization drillstem/well testing levitan...

... wellbore storage effect material balance deconvolution pressure buildup case early time Drillstem Testing russell method pressure drop function correction spe 103216 Upstream Oil & Gas deconvolution wellbore storage pressure transient test data legend normalization relation...

... to determine the compatibility of shales with salt-water drilling fluids. drilling fluids and materials early time drilling fluid formulation wellbore design wellbore integrity ion movement water ion movement upstream oil & gas arco shale interaction stability water activity nacl solution...

... by the properties of the uninvaded zones, while the packer interval pressures at early times are influenced by the invaded zone properties. It is shown that if the invaded zones are incorporated into the interpretation process using the model developed in this work, simultaneous matching of spatially available...

... parts of Ghawar field ( 1 ) . Four field cases are presented in this paper; a slanted well intersecting a fracture, a well close to a finite conductivity fault and a combination of the two. In the latter case, two examples of a fracture behavior at early times and a finite conductivity fault behavior...

... completed horizontal well. directional drilling assumption transient pressure response pressure transient analysis flow period spe 28388 open length selectively pressure behavior open segment reservoir upstream oil & gas skin distribution early time pressure response characteristic...

... reservoirs with natural or induced fractures. pressure-transient behavior pressure-transient solution hydraulic fracturing genliang guo pressure drop drillstem/well testing upstream oil & gas fluid dynamics productivity index flow in porous media early time horizontal well wellbore...

... ( 1 − e − t D / a D ) A number of assumptions were made in arriving at Eq. 17 . For example, we assumed that the term, tv ∞ /L, is much smaller than unity, which applies only at early times. A closer agreement between the analytic and numeric solutions may be obtained...

... (pressure and layer production rate) were investigated. Some important discoveries are: The wellbore response is observed in three different stages. It is identical to that of the commingled system at early time and and to that of the homogeneous system at late time. Transition occurs at intermediate...

... injectivity test performed after the fall-off qualitatively confirmed the interpretation. fractured well waterflood fracture storage derivative plot early time upstream oil & gas permeability drillstem testing maraven procedure hydraulic fracturing society of petroleum engineers fracture...

... tip. Tests on all four systems involved in the statistical analysis were performed. The agreement between the field analysis and the flow loop tests was remarkable. Both systems that showed up well in the statistical analysis had good early time viscosity development and good long term viscosity...

...) the early time, 2) the infinite acting and 3) the pseudoradial flow periods. The results of this study show that the flow behavior of the partially-penetrating fracture during the early time period is equivalent to that of a totally-penetrating fracture. This period consists of a bilinear flow period...

... damage condition are both flow restrictions, their effects on transient pressure behavior are quite different at early time. Type curves and both linear flow and bilinear flow graphs can be used to identify different cases when applied properly. conductivity flow period spe 10179 drillstem...