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5.8 Unconventional and complex reservoirs

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Proceedings Papers

Paper presented at the IADC/SPE Asia Pacific Drilling Technology Conference, June 8–9, 2021
Paper Number: SPE-201078-MS
.... Thereby, the reservoir of Triassic Baikouquan Formation was discovered in Muhu Block. However, due to the past hydraulic fracturing technology and the complex problems, the economic development of this area is still very hard to be achieved. In current years, with the huge development of hydraulic...
Proceedings Papers

Paper presented at the Canadian Unconventional Resources and International Petroleum Conference, October 19–21, 2010
Paper Number: SPE-137795-MS
... presentation thermal maturity porosity calculation upstream oil & gas toc grain density society of petroleum engineers conservation board resource assessment alberta mineralogy gas content complex reservoir energy economics unconventional resource economics free gas content montney...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 3–5, 2022
Paper Number: SPE-210164-MS
... Abstract Tortuosity is a porous medium property which measures the interconnectedness and sinuosity of the pore space. It is important in order to understand advective, diffusive transport and electric current flow in low porosity low permeability reservoirs such as unconventional shale...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, February 21–23, 2022
Paper Number: IPTC-22179-MS
... success. Thus, the main barrier for unconventional reservoirs development in the country is to reduce the associated uncertainty in a more rigorous manner and to decide, if and where to plant a flag in this vast area. A robust integrated approach was used to delineate and rank the unconventional reservoir...
Proceedings Papers

Paper presented at the 54th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2020
Paper Number: ARMA-2020-1304
...Abstract Abstract Existence and activation of natural fractures has been assumed to play a pivotal role in the productivity of ultra-low permeability unconventional reservoirs. When intersected by created hydraulic fractures, the combination is assumed to form a discrete interconnected...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, June 20–22, 2022
Paper Number: URTEC-3718584-MS
... original numerical rta workflow reservoir boundary fracture whitson URTeC: 3718584 Numerical RTA Extended to Complex Fracture Systems: Part 1 Mathias Lia Carlsen*, Curtis Hays Whitson, Whitson AS Copyright 2022, Unconventional Resources Technology Conference (URTeC) DOI 10.15530/urtec-2022-3718584...
Proceedings Papers

Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the ADIPEC, October 31–November 3, 2022
Paper Number: SPE-211024-MS
...., random forest, gradient boost, ANN, etc.) and provided informative decision making to improve well performance in the Montney formation, Canada. Abstract Performance of wells in an unconventional reservoir are largely diverse due to different geology, reservoir characteristics, and completion...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, August 25–27, 2014
Paper Number: URTEC-1922757-MS
... with organization increasing somewhat with increasing organic matter size. Reservoir Characterization resolution segmented organic matter diameter shale gas nanometer resolution organic matter complex reservoir Pore System porosity organic region Upstream Oil & Gas heterogeneity Curtis...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 22–24, 2019
Paper Number: URTEC-2019-67-MS
... and multiphase production data, especially during early flow-back period, for understanding water-formation interaction during hydraulic fracturing as well as multiphase flow effects during production. Introduction Production of unconventional reservoir may exhibit complex multiphase flow. First, during...
Proceedings Papers

Paper presented at the Abu Dhabi International Petroleum Exhibition & Conference, November 11–14, 2019
Paper Number: SPE-197746-MS
... is difficult to achieve. Later it was found that compared with unconventional reservoir in North America, Chang7 group shows low brittleness index of 40.3% and high principle stress of 7.6 MPa, making it difficult to generate complex fracture network to achieve sufficient formation contact [9] . During...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 26–28, 2021
Paper Number: URTEC-2021-5697-MS
... complex reservoir pvt measurement concentration composition wettability alteration oil recovery university experimental data URTeC: 5697 Wettability Alteration and Improved Oil Recovery in Unconventional Resources Fabio Bordeaux Rego*1, Esmail Eltahan1, Kamy Sepehrnoori1 1 The University...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, August 25–27, 2014
Paper Number: URTEC-1922257-MS
... infrastructure is not in place to transport gas away from the wells. One possible solution is to reinject the produced gas back into the formation, which has numerous positive benefits. It has the potential to increase oil recovery from unconventional reservoirs because of the strong likelihood to achieve...
Proceedings Papers

Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 28–September 1, 2022
Paper Number: SEG-2022-3750434
... neutron detection has been regarded as a significant method for gas evaluation in the casing. However, the complexity of offshore field completion and the uncertainty of annulus fluid present a significant problem that must be addressed. This will lead to small differences in reservoir gas-liquid...
Proceedings Papers

Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Eastern Regional Meeting, October 18–20, 2022
Paper Number: SPE-211871-MS
... horizontal well complex reservoir srv rate transient analysis hydraulic fracturing desorption pressure hydraulic fracture conductivity proceedings estimation rate-normalized pseudopressure reservoir fracture half-length mip-3h bdf permeability shale reservoir application Introduction...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 26–28, 2021
Paper Number: URTEC-2021-5536-MS
... the effect of higher surface roughness when modeling subsurface fracture mechanics and fluid flow. Introduction Characterizing shear slip on natural fractures of unconventional reservoirs can contribute to induced seismicity predictions, fault stability analysis, stimulated fracture fluid conductivity...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1959
... for reservoirs that have stress regimes different than the normal (i.e., strike-slip and reverse regimes) in unconventional oil and gas operations (García et al., 2013). In these cases, hydraulic fractures tend to propagate in a direction different from the vertical, which is not desirable from an operational...
Proceedings Papers

Paper presented at the ARMA/DGS/SEG International Geomechanics Symposium, November 3–5, 2020
Paper Number: ARMA-IGS-20-064
... composition artificial intelligence neural network new model elkatatny mineralogy reservoir characterization complex reservoir calcite mineral clay mineral mineral quartz xrf element statistical analysis result ann model 1. INTRODUCTION Because of low porosity and insufficient permeability...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 20–22, 2020
Paper Number: URTEC-2020-3291-MS
... Abstract Tight and unconventional reservoirs benefit from the contribution of natural or induced fracture networks to production. Establishing an effective communication between the fracture network with the main fracture and through it to the wellbore is perhaps the most difficult objective...
Proceedings Papers

Paper presented at the SPE International Hydraulic Fracturing Technology Conference and Exhibition, October 16–18, 2018
Paper Number: SPE-191432-18IHFT-MS
... for oil and gas. This resulted in the need for effective yet water-intensive technologies (e.g. fracturing treatments) in development of conventional and unconventional reservoirs to meet these demands. Fracturing treatments have been successfully implemented to produce hydrocarbons from low to extremely...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-561
... Abstract: Oil-based drilling fluids are widely used in the drilling operation of unconventional shale gas reservoirs, which will affect wellbore stability and fracability of fracturing operation. The core samples obtained from Lower Silurian Longmaxi Strata of Sichuan Basin were investigated...

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