... on mis-oriented fault planes during stimulation of the Barnett shale. Prediction of how pre-existing faults and fractures shear in response to hydraulic stimulation can help optimize field operations and improve recovery. shale gas orientation clay content complex reservoir displacement...

... flow in porous media displacement relative permeability equilibrium state upstream oil & gas capillary relaxation bundle complex reservoir capillary tube relaxation saturation fluid dynamics fluid displacement relaxation effect formulation permeability relaxation time...

... 15 , leads to a Hele-Shaw description of the displacement flow. This simplified model considers the 2D "gap-averaged" flow in axial and azimuthal directions; see Figure 1 . A major benefit of this model reduction is the fact that, in the simplest situation, the flow is governed by only the following...

.... Abstract While using conventional surface launch cementing plugs during cementing operations performed on large diameter surface pipe, significant costs are incurred during the pumping of cement and displacement fluids because of the large volumes involved in the job. Additionally, high differential...

... ∂ u i ( x , t ) ∂ t + g where u i ( x, t ) is amplitude of axial displacement at point x and time t, a i is velocity of propagation of elastic wave, d i is the ratio of resistance coefficient, and g is gravitational acceleration. The velocity of propagation...

... parameters for thin bedded salt formations. Upstream Oil & Gas cavern stability natural gas storage Thickness overburden stiffness operation anhydrite layer cavern pressure roof thickness cavern stability pressure cycle Reservoir Characterization displacement cavern roof terralog...

... was injected to displace the gel. The water that carried the proppant, quickly formed viscous fingers through the gel. The gel was observed to form long thin layers which effectively hindered proppant settling and helped transport the proppant further into the slot. This resulted in the formation of proppant...

... These factors are well documented, appearing frequently in past research. An overview is given in the following sections. Poor Mud Displacement CVF can also achieve a firm foothold if mud displacement during the primary cementing operations is poor. A primary requisite for lowering...

... because of the relatively low viscosity of the gas. This paper demonstrates how these differences affect the penetration of acid into the formation and the distribution of acid along the wellbore (acid placement). When acid displaces gas in the formation around the wellbore, the favorable mobility ratio...

... Abstract Carbon dioxide has been used in oil reservoirs for multiple contact miscibility, with methane or nitrogen as the displacing fluid. Carbon dioxide has also been used as an additive for fracture fluids to promote flow back and even as a base fluid for fracturing. A miscible process has...

... Abstract The operation of an aquifer gas storage can be distinguished from the production of a classical gas field by two fondamental points: – the flow rates in an aquifer storage are much more important, with gas/water displacement sometimes becoming instable – the alternating movement...

... by two lines with a slope of one in the linear relative permeability saturation diagram. Delclaud et al. 14 have presented a series of unsteady-state gas displacement experiments in homogeneous and fairly permeable core samples. The displacements were performed with an analysis of transient...

... valve is turned and an experimental run begins. Data are collected while the second gas flows until the displacement is complete and a second concentration baseline is established. The three-way valve is then turned back to its original position so a corresponding experiment with the first gas...

... application and various offshore process suggestions has been performed, in the perspective of nitrogen replacing produced-gas reinjection. reservoir experiment society of petroleum engineers reservoir conditions mmp displacement upstream oil & gas criterion mpa nitrogen miscibility flood...

... closure is considered and the coupling mechanisms clearly demonstrate the width decrease as well as the increase of shut-in pressure with time. poroelastic effect biot upstream oil & gas diffusion fracture borehole displacement pore-pressure field society of petroleum engineers equation...

... in this paper, so these need to be defined. The term, fracture refers to any break in rocks or soil cover that results from natural stress forces, and includes both faults (with either vertical or horizontal displacement) and joints (with very little or no displacement). The term, linears, is commonly used...