... is developed and implemented to describe the mechanical behaviour of the fractured rock in which both normal and shear deformation of the fracture are taken into consideration. An example problem is shown to illustrate the application of this work to hydraulic fracturing modeling. This fundamental integrated...

... change that, in turn, can change fracture permeability. Recent work described a new model employing a fully coupled poroelastic displacement discontinuity method with a nonlinear fracture deformation model and showed that fracture permeability can decrease or increase with decreasing pore pressure...

.... Analysis results indicated that the bit side force and the bit tilt angle in air drilling is greater than that of in mud drilling due to more deformation of BHA. The fundamental reason of difficulty to control well deviation is because of the great formation anisotropic index and formation dip in air...

..., nonlinear 3D finite element model for a shallow (1,000 ft TVD) horizontal well in Tambaredjo NW field of Suriname was built. The calculation of deformation of loose sand, which has pressure-dependent material properties, including cohesive strength, internal frictional coefficient, and Young's modulus...

... these conditions. This can lead to high casing failure risk in the forms of excessive deformation, buckling, and collapse. This paper presents an analysis on casing and cement stresses under the stated steam injection conditions. The interaction of casing-cement-formation is considered to help understand casing...

.... damage section channel technology enlarge zhang chuanan downhole branch co upstream oil & gas diameter deformation enhanced recovery spe 65099 damage well milling awl casing and cementing society of petroleum engineers xia yumin pipe lan zhongxiao daqing oilfield small diameter...

..., which in turn, changes the three dimensional effective stress state. The stress path followed by the reservoir controls the evolution of the effective stress state, and with it the changes in deviatoric stresses which cause reservoir rock deformation and permeability changes. In order to allow...

... caused by plastic deformation are the key factors to enhance the fatigue resistance of pump head. To develop deep zone reservoir, particularly the faulted block field, normally needs water-injection pressure of 40MPa. H i-pressure reciprocating water-injection pump manufactured by Zhong Cheng Company...

.... These displacements are shear failures triggered by stress concentrations generated by volume changes because of production or injection activity. Volume changes arise from pressure changes, temperature changes, or solids movement (solids injection or production). Dominant casing deformation mechanisms are localized...

... permeability fully-coupled geomechanics reservoir hysteresis initial permeability drillstem testing drillstem/well testing reservoir permeability reduction artificial intelligence porosity buildup test curve compaction hysteresis wellbore modeling & simulation deformation flow in porous...

... results is given through the analysis of in-situ applications. log analysis mechanical parameter reservoir characterization deformation engineering soft formation calculation well logging upstream oil & gas principal stress society of petroleum engineers fracture pressure shear wave...

... ABSTRACT This paper offers a study of a new model of articulated downhole motor assembly for short radius horizontal drilling. Theoretical analysis of this model and relationships among acting forces, deformations, structure, borehole geometry and operating parameters are given. Design...

... the performance will be discussed. upstream oil & gas sagd deposit spe 22367 deformation observation well operation enhanced recovery thermal method fracture trend hangingstone multiwell cyclic steam pilot society of petroleum engineers upper mcmurray oil sand grade oil sand cyclic steam...

... inclination angle. reservoir geomechanics pore pressure wellbore integrity spe 22381 mud weight plastic flow deformation criterion pore fluid stress component stability solid skeleton biot stress distribution wellbore design hole surface borehole pressure equation failure criterion...

... investigation deformation united states government reinforcement geology united kingdom government foundation reservoir characterization europe government geologist veritas rule criteria structure application CONCRETE PLATFORMS - AN OVERVIEW During the last eight years 14 large gravity...