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Keywords: fracture
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Proceedings Papers

Paper presented at the Annual Technical Meeting, June 13–17, 1999
Paper Number: PETSOC-99-32
... single water-oil contact. I have observed some instances where a single closed naturally fractured reservoir has two (and even three) different well-defined water oil contacts. This paper gives some ideas to how this can happen. The principles do apply to the case of multiple gas-oil contacts in a...
Proceedings Papers

Paper presented at the Annual Technical Meeting, June 13–17, 1999
Paper Number: PETSOC-99-58
... of spallation, erosion, fracturing, chipping and cutting. This technology has exciting applications in heavy oil recovery. Introduction The Hydratherm system can be employed for drilling oil, gas or geothermal wells. It may also be adapted for mining, boring, tunnelling or the cutting of chambers...
Proceedings Papers

Paper presented at the Annual Technical Meeting, June 7–9, 1998
Paper Number: PETSOC-98-88
... Abstract The tight gas resource potential in the Western Canadian Sedimentary Basin is enormous. To date, however, it remains relatively unexploited and underdeveloped. The use of multiply fractured horizontal wells (MFHW) appears to be the "breakthrough" technology needed to economically...
Proceedings Papers

Paper presented at the Annual Technical Meeting, June 7–9, 1998
Paper Number: PETSOC-98-55
... Abstract For predicting the performance of water injection in naturally fractured reservoirs, scale-up of the recovery data from immersing an oil-saturated core into water is commonly used. Oil recovery from some of the naturally fractured reservoirs of the North Sea has been better than what...
Proceedings Papers

Paper presented at the Annual Technical Meeting, June 7–9, 1998
Paper Number: PETSOC-98-49
... Abstract Permeabilities from layer to layer can vary significantly in naturally fractured reservoirs. This study makes a comparison of geometric mean fracture permeability with permeabilities from well testing data in a layered naturally fractured reservoir. The research was conducted with a...
Proceedings Papers

Paper presented at the Annual Technical Meeting, June 7–9, 1998
Paper Number: PETSOC-98-71
... Abstract Hydraulic fracturing has become increasingly popular in high permeability gas reservoirs in order to reduce apparent skin and thus improve well productivity. The remaining post fracture rate dependent skin effect varies from case to case and it is unclear whether this is a result of...
Proceedings Papers

Paper presented at the Annual Technical Meeting, June 7–9, 1998
Paper Number: PETSOC-98-32
... Abstract In order to determine the technical and economic feasibility of carbon dioxide (CO 2 ) flooding the naturally fractured Spraberry Trend Area reservoirs in west Texas, a team with multiple disciplines was formed A thorough geological study has been performed based on analyses of thin...
Proceedings Papers

Paper presented at the Annual Technical Meeting, June 7–9, 1998
Paper Number: PETSOC-98-46
... Abstract High water-cut in the produced fluids is one of the major problems facing the petroleum industry. We have developed the concept of using swelling clays for water shut-off in high permeability channels such as fractures and wormholes. In this process, swelling clays are mixed into...
Proceedings Papers

Paper presented at the Annual Technical Meeting, June 7–9, 1998
Paper Number: PETSOC-98-86
... Abstract Optimum fracturing is very important and what reservoir managers expect in order to exploitate reservoirs effectively. It is difficult to both reservoir managers and service operators to assess a treatment whether an optimum one because a underground fracture is invisible and...
Proceedings Papers

Paper presented at the Annual Technical Meeting, June 7–10, 1997
Paper Number: PETSOC-97-107
... Abstract The using of horizontal wells is an effective exploitation way for naturally fractured reservoirs. In accordance with horizontal wells in a naturally fractured volcanic reservoir, the characteristics of damages from drilling, completion and natural blockages are discussed and the aim...
Proceedings Papers

Paper presented at the Annual Technical Meeting, June 7–10, 1997
Paper Number: PETSOC-97-33
... Abstract Approximate equations are presented for evaluation of naturally fractured gas condensate reservoirs represented by dual-porosity models in radial systems. The reader is cautioned that this work is in progress. Additional research will help to corroborate and refine these techniques...
Proceedings Papers

Paper presented at the Annual Technical Meeting, June 7–10, 1997
Paper Number: PETSOC-97-108
... Abstract Hydraulic fracturing of low permeability reservoirs with multiple fractures is an effective stimulation treatment in the serial techniques of horizontal well production. The comprehensive mathematical model of predicting the production performance of a hydraulically fractured...
Proceedings Papers

Paper presented at the Annual Technical Meeting, June 7–10, 1997
Paper Number: PETSOC-97-120
... day initial stress ratios with depth. The results of the both models are consistent with published in situ stress data in the region. These computed stress ratios were used to calculate the maximum slip on an inclined interface where the shear resistance has been eliminated by hydraulic fracturing...
Proceedings Papers

Paper presented at the Annual Technical Meeting, June 7–10, 1997
Paper Number: PETSOC-97-31
... Abstract A newly developed mathematical model has been used for formation damage analyses of two hydraulically fractured horizontal wells in the Daqing field, China, and twelve vertical wells in the naturally fractured reservoirs of the Spraberry Trend Area, West Texas. Application of the...
Proceedings Papers

Paper presented at the Annual Technical Meeting, June 9–11, 1996
Paper Number: PETSOC-96-71
... Abstract An experimental and numerical study was conducted to investigate the effect of the variable aperture system of an oil sand fracture on its two-phase flow response. The oil sand fracture was induced in core samples along the axis of the sample using the Brazilian tensile test. A...
Proceedings Papers

Paper presented at the Annual Technical Meeting, June 9–11, 1996
Paper Number: PETSOC-96-91
... Abstract The hydraulic impedance method is a method for estimating the dimension of a downhole fracture by using the reflected waves measured at the wellhead. The method is studied in this paper. By considering the wave motions in Q fractured borehole, the fracture impedance and the wave...
Proceedings Papers

Paper presented at the Annual Technical Meeting, June 9–11, 1996
Paper Number: PETSOC-96-79
... Abstract Mini-frac analysis performed prior to a main fracture treatment is a common procedure for many companies involved in well stimulations. The purpose is to determine instantaneous shut-in pressures (lSIP), fracture closures, and leak-off. If the value for leak-off is high (greater than...
Proceedings Papers

Paper presented at the Annual Technical Meeting, June 9–11, 1996
Paper Number: PETSOC-96-60
... 4 – 5 pseudo components for the simulations. It also discusses the condensate dropout in the reservoir and its effect on the productivity of individual producing wells. The methods for characterizing fracture networks in a naturally fractured reservoir are presented and other parameters which affect...
Proceedings Papers

Paper presented at the Annual Technical Meeting, June 9–11, 1996
Paper Number: PETSOC-96-65
... advances have allowed operators to select the best or most appropriate well profile, geometry, and formation entry points. The economies of being able to select these criteria for the best producing benefit of the formation in order to improve drainage, contact natural fractures, or reduce water production...
Proceedings Papers

Paper presented at the Annual Technical Meeting, June 9–11, 1996
Paper Number: PETSOC-96-113
... Abstract Enhancing oil extraction from oilsand by hydraulic fracturing technique hasbeen widely used in practice. Due to the complexity of the actual process. Modeling of hydraulic fracturing is far behind its application. Effects of highpore pressure and high temperature combined with complex...

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