Water Flooding Efficiency in a Low-Permeability Mixed-Wet to Oil-Wet Carbonate Reservoir; A Case Study from the Kharaib B Reservoir in the Al Shaheen Field, Offshore Qatar

2009 ◽  
Author(s):  
Soren Frank ◽  
Morten Hesselager Pedersen ◽  
Paul Peter van Lingen ◽  
Rashed Noman
Keyword(s):  
Carbonate Reservoir ◽  
Water Flooding ◽  
Low Permeability

A New Polymer Flooding Technology for Improving Low Permeability Carbonate Reservoir Recovery--From Lab Study to Pilot Test--Case Study from Oman

2019 ◽  
Author(s):  
Xingcai Wu ◽  
Yongli Wang ◽  
Ahmed Al Naabi ◽  
Hanbing Xu ◽  
Ibrahim Al Sinani ◽  
...  
Keyword(s):  
Polymer Flooding ◽  
Carbonate Reservoir ◽  
Low Permeability ◽  
Test Case ◽  
Pilot Test

Development of Low Permeability Carbonate Reservoir in Depleted Sand Producing Gas Field - A Case Study

2011 ◽  
Author(s):  
Arshad Majeed ◽  
Mohammad Saeed Khan Jadoon ◽  
Saleem Jahangir ◽  
Aftab Hussain Andrabi ◽  
Bashir Ahmed
Keyword(s):  
Carbonate Reservoir ◽  
Low Permeability ◽  
Gas Field

scholarly journals Physical Simulation of Colayer Water Flooding in Low Permeability Carbonate Reservoir in Middle East

2017 ◽  
Vol 2017 ◽  
pp. 1-6 ◽  
Author(s):  
Xingwang Shi ◽  
Zhengming Yang ◽  
Yapu Zhang ◽  
Guangya Zhu ◽  
Qianhua Xiao
Keyword(s):  
Middle East ◽  
Physical Simulation ◽  
Carbonate Reservoir ◽  
Water Flooding ◽  
Low Permeability ◽  
Pore Throat ◽  
Large Pore ◽  
Production Models ◽  
Small Pore ◽  
Comprehensive Recovery

To study the flow mechanism under different displacement modes of low permeability carbonate reservoir in the Middle East and to improve the utilization of various types of reservoirs, the physical simulation experiments of water flooding by different displacement methods were carried out. Selecting two types of rock samples with different permeability levels, two-layer coinjection and separated production experiments by samples I and III and conventional water flooding experiments by samples II and IV were carried out. In addition, by using low magnetic field nuclear magnetic resonance, the development effect of microscopic pore structure under the different injection-production models was analyzed. Results show that, compared with the coinjection, the recovery rate of sample I was higher than II, 19.30%; sample III was lower than IV, 23.22%; and the comprehensive recovery degree reduced by 3.92%. NMR data also show that the crude oil is mainly distributed in the large pore throat; after water flooding, the displacement is also within the large pore throat, whereas the small pore throat is mainly obtained by the effect of infiltration absorption. The above studies provide a laboratory basis and foundation for the further development of low permeability carbonate reservoir in different Middle East strata.

Characterization of Rock and Fluid Properties for Low-Salinity Water Flooding of Highly Paraffinic Oil in a Deep Low-Permeability High-Pressure High-Temperature Offshore Carbonate Reservoir

2020 ◽  
Author(s):  
N. Singh ◽  
P. H. Gopani ◽  
H. K. Sarma ◽  
P. S. Mattey ◽  
D. S. Negi
Keyword(s):  
Experimental Studies ◽  
Carbonate Reservoir ◽  
Water Flooding ◽  
Low Permeability ◽  
Low Salinity ◽  
Low Salinity Water ◽  
Fluid Properties ◽  
Salinity Water ◽  
Paraffinic Oil

Abstract Characterization of the rock and fluids is an essential step in screening a reservoir for Low-Salinity Water Flooding (LSWF). A detailed characterization of rock and fluid properties using appropriate methods is being presented for LSWF in a low-permeability deep carbonate reservoir together with a critical analysis of findings. The techniques used are assessed against other possible alternative methods, with inferences drawn on advantages and disadvantages of each to better interpret and apply data so gathered. In so doing, discussions on their key features as to how they can be used effectively and efficiently to screen a reservoir for LSWF are also provided. Such integration of results with other available reservoir and production data should result in a comprehensive description of the target reservoir, and it will help interpret the mechanisms and process dynamics more reliably during a low-salinity waterflood. This integration should allow us not only to gain confidence on the experimental studies but could also help optimize the key parameters responsible for formulating a more robust, reliable and representative regime for tests relevant to the LSWF prior to its eventual implementation in the field. To authors’ knowledge, such integration of experimental studies has not yet been reported in the literature, particularly for the tight carbonate reservoirs with highly paraffinic oil.

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