... fracture height gradient reservoir hydraulic fracturing poisson ratio fracture length sand pressure drop equation secondary sand proppant migration model fracturing fluid permeability minimum principal stress concentration cap rock equation fracture propagation model application...

... coefficients enable a consideration of fluid loss additives for fracturing fluids to build up pressure for fracture opening. In the fracture conductivity tests, closure stress is applied across a test unit for sufficient time to allow the proppant bed to reach a semi-steady state condition while test fluid...

.... A proppant such as sand, ceramic spheres or similar product is added to the fluid and will be left in the fracture to enable the production to increase due to a relative permeability difference with the formation. Chemicals are added to the fluid to enhance the characteristics of friction, viscosity, leakoff...

... of low psotfrac output of individual layer. *: Financial support by project 2007JY042 PETROLEUM SOCIETY 2Statistic analysis of fracturing data Relationship between fracturing scale and formation parameters Fig 1 and fig 2 are the relation curves of proppant concentration and formation parameters through...

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... required for flowing back fluids. The most important benefit is achieving a less damaged proppant pack, resulting in higher fracture conductivity. This document will discuss the application of CO 2 foamed fluids and surfactants to enhance fracturing fluid recovery and other techniques adopted by one...

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... and place the proppant successfully. Economic value to the customer (EVC) analysis showed $460,000 savings on eight gelled CO 2 /oil high-rate fracture jobs for Petro Canada Oil and Gas Ltd. Four fluid systems have been used to pump 50 fracturestimulation jobs in 42 Ricinus-area wells producing from...

... oil & gas concentration proppant lpg recovery 1 PAPER 2006-169 Liquid Petroleum Gas Fracturing Fluids for Unconventional Gas Reservoirs R.S. TAYLOR Halliburton R.S. LESTZ, L. WILSON ChevronTexaco G.P. FUNKHOUSER, H. WATKINS, D. ATTAWAY Halliburton This paper is to be presented...

... in Horizontal Channels with Different Wall Roughness, Chem. Eng. Science 60, No 3, pp 655-663, 2005 5. SCHOOK, CA, ROCO, MC. Slurry Flow. Butterworth- Heinemann, 1991. 6. UNWIN, A.T., HAMMOND, P.S., Computer Simulations of Proppant Transport in a Hydraulic Fracture, SPE Paper N 29649. 0 0.2 0.4 0.6 0.8 1 1.2...

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... constant. A Newtonian liquid has no storage modulus (G Elastic behaviour is important for suspending proppant at low shear rates. This methodology therefore provides insights into fluid behaviour that complement those obtained using shear stress vs. shear rate measurements. Introduction Unconventional gas...

...1 PAPER 2005-177 The Production Success of Proppant Stimulation on Horseshoe Canyon Coal Bed Methane and Sandstone Commingled Wells T.T. LESHCHYSHYN, B.A. RIEB, J.T. THOMSON BJ Services Company Canada This paper is to be presented at the Petroleum Society s 6th Canadian International Petroleum...

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...1 PAPER 2005-217 Field Results: Effect of Proppant Selection on Well Productivity Cardium Formation T.T. LESHCHYSHYN BJ Services Company Canada M.C. VINCENT CARBO Ceramics Inc. C.M. RIGHTMIRE Pinnacle Technologies This paper is to be presented at the Petroleum Society s 6th Canadian International...

...). Observations on proppant selection and in-situ closure stress are made in addition to the fracturing fluid selection. Introduction Natural gas currently accounts for 22% of world wide energy consumption. As worldwide use of natural gas is increases to meet energy demand, interest in unconventional gas...

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... between 9 and 12% with some streaks up to 15%. The reservoir is under-saturated with average water saturation values in the 15 to 25% range. The reservoirr permeability, derived by in-situ methods, was in the range of 0.1 to 1 mD. fracture design proppant friction fracture length hydraulic...