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Keywords: polymer injection
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Proceedings Papers

Paper presented at the SPE Asia Pacific Enhanced Oil Recovery Conference, August 11–13, 2015
Paper Number: SPE-174670-MS
... polymer injection Polymer flooding is an important method to enhance oil recovery (EOR) and to keep oil production stable at high water cut stage for oilfield. Sysmatic polymer flooding research and large-scale production testing have beeen carried out in some oilfields in China such as Daqing...
Proceedings Papers

Paper presented at the SPE Asia Pacific Enhanced Oil Recovery Conference, August 11–13, 2015
Paper Number: SPE-174613-MS
... uncertainty after five years of waterflooding, we select three groups of 10 cases out of 100 with similar water breakthrough dates at the four production wells. We then simulate five years of polymer injection. We allow that the polymer process might fail in situ and viscosity could be half that intended. We...
Proceedings Papers

Paper presented at the SPE Asia Pacific Enhanced Oil Recovery Conference, August 11–13, 2015
Paper Number: SPE-174665-MS
... cake growth is responsible for the sharper increase in injection pressure at the later times. The proposed model can be used to calculate the injectivity of the polymer injection wells, understand the contribution of different phenomena on the pressure rise in the wells, locate the plugging or damage...
Proceedings Papers

Paper presented at the SPE Asia Pacific Enhanced Oil Recovery Conference, August 11–13, 2015
Paper Number: SPE-174627-MS
... logging. The well schedule included, 5 months of water injection, three months of polymer injection and 12 months of back-production. We used an innovative inline viscometer to measure viscosity in the backflow stream at anaerobic conditions. This procedure avoided the problems of chemical degradation due...
Proceedings Papers

Paper presented at the SPE Asia Pacific Enhanced Oil Recovery Conference, August 11–13, 2015
Paper Number: SPE-174694-MS
... price scenario. enhanced recovery polymer injection EOR project Implementation machine learning Upstream Oil & Gas Effectiveness recovery factor waterflooding Efficiency residual oil saturation injection Oil Recovery reduction EOR technique water injection Artificial...
Proceedings Papers

Paper presented at the SPE Asia Pacific Enhanced Oil Recovery Conference, August 11–13, 2015
Paper Number: SPE-174699-MS
... Abstract The Polymer Injection Project on Dalia field, one of the main fields of Block 17 in deep offshore Angola, is a world first for both surface and subsurface aspects. Thorough geosciences and architecture integrated studies led to decide to phase the project, with a polymer injectivity...
Proceedings Papers

Paper presented at the SPE Enhanced Oil Recovery Conference, July 2–4, 2013
Paper Number: SPE-165234-MS
... Lake due to the high viscosity of the oil, until the idea came of combining it with horizontal wells. A first – unsuccessful – pilot was implemented in 1997 but the lessons drawn from that failure were learnt and a second pilot met with success in 2006. The response to polymer injection in this pilot...
Proceedings Papers

Paper presented at the SPE Enhanced Oil Recovery Conference, July 2–4, 2013
Paper Number: SPE-165267-MS
... (i.e. after waterflooding) injection. However, increasing polymer viscosity from 3 cP to 60 cP does not significantly change recovery from two pore volumes (PV) of tertiary polymer injection. Existing scaling groups for viscous instability are investigated. Corefloods in this study and others...
Proceedings Papers

Paper presented at the SPE Enhanced Oil Recovery Conference, July 2–4, 2013
Paper Number: SPE-165237-MS
... Table 1 Main PVT characteristics of the oil Pb 37.2 bars GOR 10.8 v/v Oil viscosity at Pinit and 50°C 3000 – 3500 cP Oil viscosity at Pres and 50 °C 4200 – 4600 cP The objective of the experiment is to evaluate the impact of polymer injection...
Proceedings Papers

Paper presented at the SPE Enhanced Oil Recovery Conference, July 2–4, 2013
Paper Number: SPE-165274-MS
... performance. This paper details successful implementation of proactive WRM strategy that has played a key role in sustaining production from this polymer flood field to date. It describes the pattern management processes to optimize pattern wise polymer injection and oil recoveries, conformance control...
Proceedings Papers

Paper presented at the SPE Enhanced Oil Recovery Conference, July 2–4, 2013
Paper Number: SPE-165253-MS
... polymer injection for two years, with no detrimental injectivity losses observed for polymer concentrations up to 750 ppm. Considerable fracture growth, oil production rate uplift and reduction in water cut were observed throughout the pilot pattern, in line with predictions: Fracture half-lengths...
Proceedings Papers

Paper presented at the SPE Enhanced Oil Recovery Conference, July 2–4, 2013
Paper Number: SPE-165275-MS
... and the reservoir condition range of applicability.</p> Upstream Oil & Gas salinity water cut waterflooding viscosity application enhanced recovery concentration operation Bohai Bay oil price Tambaredjo Field chemical flooding methods polymer injection polymer flooding Injection Rate...
Proceedings Papers

Paper presented at the SPE Enhanced Oil Recovery Conference, July 2–4, 2013
Paper Number: SPE-165276-MS
... data. Application of the method identified that polymer injection would indeed be economically unfavourable ( Alusta et al., SPE 163298 ). The approach is then carried out in a field where the choice has yet to be made, a field which is currently under waterflood management, and where the operator...
Proceedings Papers

Paper presented at the SPE Enhanced Oil Recovery Conference, July 19–20, 2011
Paper Number: SPE-144119-MS
... and gradual increase and decrease. The oil recovery effect for polymer flooding is mainly realized during the process of polymer injection, featuring quick water cut decrease and fairly quick increase as well quick water cut increase for subsequent water flooding; the oil displacement effect of CDG...
Proceedings Papers

Paper presented at the SPE Enhanced Oil Recovery Conference, July 19–20, 2011
Paper Number: SPE-145027-MS
... horizontal wells or deviated wells. The polymer flood effect is recognized and analysed: Best case incremental oil recovery was 7% with earlier polymer injection allowing for greatest incremental recovery. Significant Plateau extension and delayed water breakthrough were noted. The results show that polymer...

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