A Case Study of Salt-Tolerant Functional Polymer For EOR in Carbonate Reservoirs with Ultra-High Salinity (Russian)

2020 ◽  
Author(s):  
Aidar Zamilevich Mustafin ◽  
Kexing Li ◽  
Mikhail Alekseevich Varfolomeev ◽  
Chengdong Yuan ◽  
Rail Ilgizarovich Kadyrov ◽  
...  
Keyword(s):  
High Salinity ◽  
Carbonate Reservoirs ◽  
Salt Tolerant ◽  
Functional Polymer

A Case Study of Salt-Tolerant Functional Polymer For EOR in Carbonate Reservoirs with Ultra-High Salinity

2020 ◽  
Author(s):  
Aidar Zamilevich Mustafin ◽  
Kexing Li ◽  
Mikhail Alekseevich Varfolomeev ◽  
Chengdong Yuan ◽  
Rail Ilgizarovich Kadyrov ◽  
...  
Keyword(s):  
High Salinity ◽  
Carbonate Reservoirs ◽  
Salt Tolerant ◽  
Functional Polymer

Laboratory Study of Alkyl Ether Sulfonates for Improved Oil Recovery in High-Salinity Carbonate Reservoirs: A Case Study

2010 ◽  
Vol 24 (6) ◽  
pp. 3655-3660 ◽  
Author(s):  
Mohamed Aoudia ◽  
Rashid S. Al-Maamari ◽  
Moein Nabipour ◽  
Ali S. Al-Bemani ◽  
Shahab Ayatollahi
Keyword(s):  
Laboratory Study ◽  
Oil Recovery ◽  
High Salinity ◽  
Carbonate Reservoirs ◽  
Alkyl Ether ◽  
Improved Oil Recovery

scholarly journals Evolution of halophytes: multiple origins of salt tolerance in land plants

2010 ◽  
Vol 37 (7) ◽  
pp. 604 ◽  
Author(s):  
Timothy J. Flowers ◽  
Hanaa K. Galal ◽  
Lindell Bromham
Keyword(s):  
Salt Tolerance ◽  
Novel Species ◽  
Complex Trait ◽  
Land Plants ◽  
Salt Tolerant ◽  
Physiological Mechanisms ◽  
Multiple Origins ◽  
Naturally Occurring ◽  
Tolerant Plants

The evolution of salt tolerance is interesting for several reasons. First, since salt-tolerant plants (halophytes) employ several different mechanisms to deal with salt, the evolution of salt tolerance represents a fascinating case study in the evolution of a complex trait. Second, the diversity of mechanisms employed by halophytes, based on processes common to all plants, sheds light on the way that a plant’s physiology can become adapted to deal with extreme conditions. Third, as the amount of salt-affected land increases around the globe, understanding the origins of the diversity of halophytes should provide a basis for the use of novel species in bioremediation and conservation. In this review we pose the question, how many times has salt tolerance evolved since the emergence of the land plants some 450–470 million years ago? We summarise the physiological mechanisms underlying salt-tolerance and provide an overview of the number and diversity of salt-tolerant terrestrial angiosperms (defined as plants that survive to complete their life cycle in at least 200 mM salt). We consider the evolution of halophytes using information from fossils and phylogenies. Finally, we discuss the potential for halophytes to contribute to agriculture and land management and ask why, when there are naturally occurring halophytes, it is proving to be difficult to breed salt-tolerant crops.

Expanding Polymer Injectivity Tests on a Second Giant Carbonate UAE Oil Reservoir at High Salinity & High Temperature Conditions.

2021 ◽  
Author(s):  
S.A. Baloch ◽  
J.M. Leon ◽  
S.K. Masalmeh ◽  
D. Chappell ◽  
J. Brodie ◽  
...  
Keyword(s):  
High Temperature ◽  
Polymer Solution ◽  
High Salinity ◽  
Laboratory Data ◽  
Experimental Studies ◽  
Carbonate Reservoirs ◽  
Field Conditions ◽  
Sweep Efficiency ◽  
Tertiary Butyl ◽  
Solution Preparation

Abstract Over the last few years, ADNOC has systematically investigated a new polymer-based EOR scheme to improve sweep efficiency in high temperature and high salinity (HTHS) carbonate reservoirs in Abu Dhabi (Masalmeh et al., 2014). Consequently, ADNOC has developed a thorough de-risking program for the new EOR concept in these carbonate reservoirs. The de-risking program includes extensive laboratory experimental studies and field injectivity tests to ensure that the selected polymer can be propagated in the target reservoirs. A new polymer with high 2-acrylamido-tertiary-butyl sulfonic acid (ATBS) content was identified, based on extensive laboratory studies (Masalmeh, et al., 2019, Dupuis, et al., 2017, Jouenne 2020), and an initial polymer injectivity test (PIT) was conducted in 2019 at 250°F and salinity >200,000 ppm, with low H2S content (Rachapudi, et al., 2020, Leon and Masalmeh, 2021). The next step for ADNOC was to extend polymer application to harsher field conditions, including higher H2S content. Accordingly, a PIT was designed in preparation for a multi-well pilot This paper presents ADNOC's follow-up PIT, which expands the envelope of polymer flooding to dissolve H2S concentrations of 20 - 40 ppm to confirm injectivity at representative field conditions and in situ polymer performance. The PIT was executed over five months, from February 2021 to July 2021, followed by a chase water flood that will run until December 2021. A total of 108,392 barrels of polymer solution were successfully injected during the PIT. The extensive dataset acquired was used to assess injectivity and in-depth mobility reduction associated with the new polymer. Preliminary results from the PIT suggest that all key performance indicators have been achieved, with a predictable viscosity yield and good injectivity at target rates, consistent with the laboratory data. The use of a down-hole shut-in tool (DHSIT) to acquire pressure fall-off (PFO) data clarified the near-wellbore behaviour of the polymer and allowed optimisation of the PIT programme. This paper assesses the importance of water quality on polymer solution preparation and injection performance and reviews operational data acquired during the testing period. Polymer properties determined during the PIT will be used to optimise field and sector models and will facilitate the evaluation of polymer EOR in other giant, heterogeneous carbonate reservoirs, leading to improved recovery in ADNOC and Middle East reservoirs.

New Salt-Tolerant Friction Reducers Minimize Alteration of Rock Wettability after Hydraulic Fracturing: Case Study

2018 ◽  
Author(s):  
Xu Liang ◽  
James Ogle ◽  
Ian Straffin ◽  
Howard Riley ◽  
Jose Padilla ◽  
...  
Keyword(s):  
Hydraulic Fracturing ◽  
Salt Tolerant
Sign in / Sign up

Export Citation Format

Share Document