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Phase characterization of in-situ fluids

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Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 26–28, 2021
Paper Number: URTEC-2021-5594-MS
... unconventional production situation, appropriate in-situ fluid characterization is critical for valid resource assessment. Simplified protocols have been developed for saturated fluid characterization and a continuous volumetric assessment approach is developed across variable fluid phases. A broad range...
Proceedings Papers

Paper presented at the Canadian International Petroleum Conference, June 13–15, 2006
Paper Number: PETSOC-2006-100
... Abstract Gas condensate reservoirs exhibit complex coupling between phase behavior and geology. Characterization of the in situ fluid as well as development of phases for quantifying phase interference effects can be subject to considerable error. Techniques for sampling and characterization...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 26–28, 2016
Paper Number: SPE-181526-MS
.... Phase 1, Phase 2 and Phase 3 are shaded in blue, purple and green, respectively. Figure 11 Tested fields summary Data from Phase three were used for validation and in-situ hydrocarbon characterization using the new optical fluid analyzers. In addition to the GOR and methane sensors results...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 30–October 2, 2019
Paper Number: SPE-196056-MS
... reservoirs. Their methodology assumed a sample mixture with a dewpoint lower than the original dewpoint. Field-observations from basins like the Montney, indicate that some unconventional fluid systems can contain both free oil and free gas in situ (i.e. an initial "two-phase" system...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 26–28, 2021
Paper Number: URTEC-2021-5137-MS
.... With these three values, the pressure drop in the proxy core test, PP, can then be set. A high-pressure, high-temperature two-phase core-flooding apparatus was used to perform the experiments. The core flooding apparatus uses a micro-CT scanner capable of 700 nm resolution, enabling imaging of in-situ flow...
Proceedings Papers

Paper presented at the SPE Heavy Oil Conference-Canada, June 11–13, 2013
Paper Number: SPE-165429-MS
... of having a good phase behavior model for simulating the in situ combustion processes, because this was the basis of the kinetic model, which is responsible for representing all reactions occurring in the process. Based on information gathered from PVT tests conducted at fluid in study, and using the right...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 23–25, 2018
Paper Number: URTEC-2902946-MS
... fluids in liquids-rich shales is characterized by in-situ fractionation. The severity of this effect likely depends on several factors that are outside the scope of this study. However there is strong evidence that molecular sieving occurs where restrictive pore throat sizes limit the flow of specific...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 24–26, 2017
Paper Number: URTEC-2691047-MS
... with separator oil to estimate in-situ fluid compositions corresponding to each vertical grid block in the simulation model (Table 4). The resulting phase envelopes for the layers with the largest contrast in in-situ fluid properties are shown in Fig. 14 all other layers have phase envelopes that lie between...
Proceedings Papers

Paper presented at the Annual Technical Meeting, May 8–11, 1993
Paper Number: PETSOC-93-46
... water internal emulsion enhanced recovery situ formation continuous external phase upstream oil & gas emulsion flow in porous media emulsion formation bitumen droplet fluid dynamics oilfield chemistry production chemistry hirata reduction bitumen-water stable emulsion THE IN SITU...
Proceedings Papers

Paper presented at the Abu Dhabi International Petroleum Exhibition & Conference, November 9–12, 2020
Paper Number: SPE-202903-MS
... . Use of the Velocity of Sound in Predicting the PVT Relations . Fluid Phase Equilibria . 90 ( 2 ): 251 — 264 . http://dx.doi.org/10.1016/0378-3812(93)85067-V . 16. Riazi , M.R. , 2005 . Characterization and Properties of Petroleum Fractions : ASTM International , Philadelphia, PA...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 20–22, 2020
Paper Number: URTEC-2020-2452-MS
... based on flow test data and (3) quantifying the saturation pressure of in-situ fluid systems using an Equation of State (EOS) derived from available PVT lab data. Our results suggest that most of the 120 wells of our dataset have under-saturated to near-saturation single-phase fluid systems before...
Proceedings Papers

Paper presented at the SPE Canada Heavy Oil Technical Conference, March 13–14, 2018
Paper Number: SPE-189727-MS
... cubic equations of state. It is a good alternative to build a fluid model which can capture the basic characteristics of both the phase behaviour and oxidation reactions taking place during the in-situ combustion process. Furthermore, the case studies presented demonstrate that the workflow is fully...
Proceedings Papers

Paper presented at the SPE Latin America and Caribbean Petroleum Engineering Conference, May 21–23, 2014
Paper Number: SPE-169436-MS
... and performed visually. During the stage of "in situ" physicochemical evaluation, the characterization of returns of stimulation fluids was performed, which consisted in the determination of pH, conductivity, bicarbonates, chlorides and dissolved iron concentrations. Further analyzes were quantification...
Proceedings Papers

Paper presented at the SEG/AAPG/EAGE/SPE Research and Development Petroleum Conference and Exhibition, May 9–10, 2018
Paper Number: SEG-2018-57
... 10.1190/RDP2018-41924958.1 206 NMR-MRI Characterization of Low-Salinity Water Alternating CO2 Flooding in tight Carbonate Based on experimental data, we performed the permeability analysis, preliminary two-phase flow analysis and composition analysis of extracted fluid from the core. After formation water...
Proceedings Papers

Paper presented at the SPE Reservoir Characterisation and Simulation Conference and Exhibition, September 17–19, 2019
Paper Number: SPE-196697-MS
... is possible to investigate more thoroughly also the inner region of ternary diagram. The use of the in-situ X-Ray scanning technology enabled us to accurately assess the depth-averaged fluid displacement during the flooding. The three-phase SS experiments were executed by following diverse saturation...
Proceedings Papers

Paper presented at the Abu Dhabi International Petroleum Exhibition & Conference, November 13–16, 2017
Paper Number: SPE-188510-MS
... reservoir rocks which were saturated with crude oil and potassium iodide brine (providing effective phase contrast) at subsurface conditions ( Alhammadi et al., 2017 ). In this study, the in situ wettability is characterized in a more representative system, in which carbonate reservoir rock from...
Proceedings Papers

Paper presented at the SPE Europec, December 1–3, 2020
Paper Number: SPE-200575-MS
.... The well producing GOR (R pw ) is usually defined as the instantaneous ratio of total surface gas volume to the surface oil volume from a multi-stage separator. When the in-situ reservoir fluid is single phase and flowing bottomhole pressure (p wf ) has never dropped below the saturation pressure (p s...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, April 14–18, 2018
Paper Number: SPE-190245-MS
... the ones showing presence of all three phases and used later on for image segmentation and in-situ contact angle estimation. Figure 5 is an another example of trapped oil in carbonates pores, as a continuous film in entangled channels, large curvature interfaces and pinning points favorable to oil...
Proceedings Papers

Paper presented at the Abu Dhabi International Petroleum Exhibition & Conference, November 15–18, 2021
Paper Number: SPE-207388-MS
... microFRAC ins-situ stress measurement at the zone of interest. Figure 7 Plot showing formation breakdown pressure and fracture propagation followed by pressure fall-off to measure fracture closure in cycle 1. Table 1 Results from the pressure fall off cycles using different methods...
Proceedings Papers

Paper presented at the Offshore Mediterranean Conference and Exhibition, March 29–31, 2017
Paper Number: OMC-2017-536
... consisted of simulation of water and gas phase equilibrium and comparison of the results with in-situ measurements. Reliable downhole gas/water holdup data were obtained by modifying a wireline tool based on optical refraction, discriminating gas from liquids and deriving a direct gas holdup. The modified...

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