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Evaluation of conformance improvement gels

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Journal Articles
Journal: SPE Journal
SPE J. 24 (04): 1726–1740.
Paper Number: SPE-194004-PA
Published: 09 January 2019
...Daoyi Zhu; Jirui Hou; Yuguang Chen; Qi Wei; Shuda Zhao; Baojun Bai Summary A terpolymer-gel system using low toxic polyethylenimine (PEI) as the crosslinker was developed for conformance improvement in high-temperature reservoirs. Suitable gelation time (GT), gel strength, and thermal stability...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 28–30, 2015
Paper Number: SPE-175049-MS
... in an attempt to improve conformance. A standardized workflow was used to evaluate conformance improvement in both fields. Results of this analysis clearly indicate that MARCIT SM gel is more successful in fractured reservoirs than it is in homogenous reservoirs since it also damages the low permeability zones...
Proceedings Papers

Paper presented at the SPE Kingdom of Saudi Arabia Annual Technical Symposium and Exhibition, April 25–28, 2016
Paper Number: SPE-182795-MS
... for each gel technology. Artificial Intelligence strength waterflooding selection characteristic gel treatment evaluation gel system conformance improvement conformance issue water cut polymer gel reservoir application enhanced recovery gel technology Upstream Oil & Gas CDG...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, January 13–15, 2020
Paper Number: IPTC-20275-MS
... The workflow for waterflood conformance improvement in a naturally fractured carbonate reservoir with polymer gel injection is presented. The workflow outlines a systematic way of identifying the conformance candidates and evaluating optimal gel volume for the job design predicated on using...
Proceedings Papers

Paper presented at the SPE Kingdom of Saudi Arabia Annual Technical Symposium and Exhibition, April 23–26, 2018
Paper Number: SPE-192358-MS
... Exploration and Development , vol. 42 , no. 4 , pp. 525 – 532 , Aug . 2015 . 22. " Evaluation of conformance improvement gels ," PetroWiki. [Online]. Available : http://petrowiki.org/Evaluation_of_conformance_improvement_gels. [Accessed: 11 - Nov - 2017 ]. 23. K. S. M. El-karsani , G...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, August 31–September 4, 2020
Paper Number: SPE-200339-MS
... is to develop a novel particle- based gel technology that can be used to enhance CO 2 sweep efficiency and thus improve CO 2 storage in mature oilfields. In this paper, we first provide our classification of conformance problems in CO 2 flooding fields, and addresses the importance of developing novel...
Proceedings Papers

Paper presented at the Abu Dhabi International Petroleum Exhibition & Conference, November 9–12, 2020
Paper Number: SPE-203237-MS
... more representative parameters for characterizing the gel performance at actual reservoir conditions. Dynamic gel properties are necessary for both accurate evaluation for deep conformance control applications and numerical simulation. In this paper, we present an in-situ gelation evaluation method...
Proceedings Papers

Paper presented at the SPE Middle East Oil and Gas Show and Conference, March 18–21, 2019
Paper Number: SPE-194964-MS
... gel treatment is a successful technology for conformance improvement. Achieving effective deep conformance control in high-temperature reservoirs requires improving the performance of gel in these environments and a deep understanding of gel-conformance control mechanisms inside reservoir rocks...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Symposium, April 12–16, 2014
Paper Number: SPE-169072-MS
.... The post-treatment Hall Plot shows a large change in the slope indicating a positive change in skin. Such a change has been shown to be an indication of permeability modification and conformance improvement ( Manrique et al. 2014 ). Fig. 6 shows the Foster 1-18 time rate plot. The gel treatment resulted...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, August 31–September 4, 2020
Paper Number: SPE-200401-MS
... to well communication through the network of induced or natural fractures resulting in poor sweep efficiency of waterfloods. Conformance improvement using polymer gel technology, a polymer and a polymer specific cross-linker, has been a common practice in conventional assets for 30 years. The polymer...
Proceedings Papers

Paper presented at the SPE Western Regional Meeting, April 20–22, 2021
Paper Number: SPE-200831-MS
..., and will facilitate the optimization of the gel treatments to improve their performances and success rate. chemical flooding methods conformance improvement waterflooding conformance problem gel project gel vcr produced water management and control hydraulic fracturing fluid dynamics polymer...
Proceedings Papers

Paper presented at the SPE/DOE Symposium on Improved Oil Recovery, April 22–26, 2006
Paper Number: SPE-99641-MS
... time system enhanced recovery conformance improvement oilfield Upstream Oil & Gas Efficiency producer profile control Artificial Intelligence reservoir injector Combination Technology evaluation China agent information application injection conformance control treatment...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Symposium, April 12–16, 2014
Paper Number: SPE-169091-MS
... evaluating several alternatives, in 2008 the operator implemented a field pilot in two non-adjacent patterns using a proven polymer gel technology developed specifically for conformance improvement in naturally fractured reservoirs, becaming the first Conformance treatment in the Country. After an evaluation...
Proceedings Papers

Paper presented at the SPE Kingdom of Saudi Arabia Annual Technical Symposium and Exhibition, April 23–26, 2018
Paper Number: SPE-194383-MS
... production data are also presented in Table 3. A series of low-field NMR measurements, including T2, Spatial T2, and Saturation Profiles, have been conducted to evaluate oil production improvement within the core samples during gel conformance control. The total amount of fluids that contains proton...
Proceedings Papers

Paper presented at the SPE EOR Conference at Oil and Gas West Asia, March 21–23, 2016
Paper Number: SPE-179796-MS
... as shown in Figure 2 to form a heterogeneous composite sample for recovery and conformance evaluation. Two coreflooding tests were conducted with different SP and gel injection sequences post waterflooding to test the effectiveness of gel treatment in conformance control and oil recovery improvement...
Proceedings Papers

Paper presented at the SPE Asia Pacific Oil and Gas Conference and Exhibition, October 23–25, 2018
Paper Number: SPE-192136-MS
...-treatment production logs confirmed an improvement in the injection conformance. Later, the zone was isolated and the bottommost zones were selectively stimulated enhancing the injection and thus improving sweep efficiency. Since the crosslinked gel system is not prone to any disintegration when in contact...
Proceedings Papers

Paper presented at the SPE Enhanced Oil Recovery Conference, July 19–20, 2011
Paper Number: SPE-144221-MS
... This paper presents a comprehensive evaluation of polymer gel for the water shutoff purpose in mature reservoirs. Laboratory experiments are conducted to design an optimal polymer gel composition for the conformance control technology. Then a series of numerical simulations have been done...
Proceedings Papers

Paper presented at the SPE EUROPEC/EAGE Annual Conference and Exhibition, June 14–17, 2010
Paper Number: SPE-131267-MS
... recently in Bati Raman field providing improved sweep efficiency and 12 % increase in net oil recovery. Field application of polymer gels for water shutoff and conformance improvement have provided both technically and economically successful results in naturally fractured carbonate heavy oil reservoirs...
Proceedings Papers

Paper presented at the Carbon Management Technology Conference, July 15–18, 2019
Paper Number: CMTC-556840-MS
... polymer gel to reduce CO2 production and improve oil recovery in Rangely Weber Sand Unit in northwestern Colorado. In this paper, CO2 flooding was conducted in sandstone cores to evaluate polymer gel plugging efficiency to water and CO2. The experiments were designed to evaluate the impact of core...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Conference, April 11–13, 2016
Paper Number: SPE-179575-MS
... in their ability to self-check the established validity limits for the screening parameters which resulted from the inclusion and simultaneous evaluation of the project and treatment frequencies. enhanced recovery waterflooding mobility ratio conformance improvement Fluid Dynamics polymer gel data...

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