... Abstract Polymer flooding is gaining popularity in the offshore field to enhance oil recovery. Usually, the polymer fluid is prepared using maturation tanks. However, such tanks occupy large areas and are very heavy, which is not suitable for offshore applications as the platforms have limited...

... water cut to ~80%. Polymer flood in heavy oil has received significant attention after the numerous success across the globe namely, Marmul Oman, Bohai Bay offshore China and Pelican lake Canada fields. Screening studies were conducted followed by comprehensive laboratory evaluations of chemical flood...

... Abstract Chemical flooding is one of the classical EOR methods, together with thermal methods and gas injection. It is not a new method; indeed, the first polymer flood field pilots date back to the 1950s while the first surfactant-based pilots can be traced back to the 1960s. However, while...

... and the accurately calculated permeability tensor of the selected blocks. Then we simulate the polymer flooding on the constructed digital rock and show that the simulation process is computational efficient. We calculate the porosity and permeability of the constructed digital whole core and compare them...

... Abstract Block-X Oilfield in Bohai Bay (China) is a typical offshore heavy oil reservoir, which has an oil viscosity of 24-452 mPa·s, an average porosity of 31% and stronger permeability heterogeneity (average 2000 mD). Before polymer flooding, over 10 years water flooding achieved a recovery...

... Abstract Polymer flooding is a mature Enhanced Oil Recovery process which is used worldwide in many large- scale field expansions. Encouraged by these positive results, operators are still looking at applying the process in new fields even in the context of low oil prices and are evaluating its...

... salinity brine used in polymer flooding usually had a salinity that was greater than the low and maybe the high salinity thresholds needed for low salinity waterflooding to be effective. This means that many polymer floods did not see an improvement in oil recovery due to the low salinity effect...

..., there is a significant potential for tertiary recovery through the application of polymer flooding. For reservoir oil viscosities above 150 mPa.s, the polymer pumping efficiency goes down as polymer injectivity reduces significantly with increasing injection water viscosity that are used to attain a favorable mobility...

... Abstract It has become a focus of concern for polymer flooded oilfields to further produce remaining oil after polymer flooding at the subsequent water flooding stage. Based on the basic theory of hydrodynamic flow field distribution, a method to produce remaining oil at the diversion lines...

... the other chemical enhanced oil recovery (CEOR) techniques. Although one recent surfactant-polymer flooding (SP) field test is reported 18% incremental oil recovery, other SP flooding field tests are not so successful. More incremental oil recovery does not always ensure more economic benefits...

... Abstract Daqing oilfield is the largest chemical flooding oilfield in the world. The polymer flooding can enhance oil recovery by 10-15%, while the ASP flooding can enhance oil recovery by over 20%, which is 1.5 times more efficient than the polymer flooding. By the end of 2016, there are 31529...

... Abstract Polymer flooding has been improved an effective way for EOR in China. Comparing with waterflooding, zonal pressure and flowrate change much larger for polymerflooding duo to its high viscosity. Reservoir engineer are required to adjust flow allocation scheme frequently when pressure...

... flooding experiment Viscosity Retention hydrolysis degree polymer flooding pilot area anti-salt polymer flooding experiment society of petroleum engineers chemical flooding methods polymer Thickness recovery factor unique anti-salt polymer flooding polymer solution Evaluation...

... bodies and minor sand bodies are controlled as a whole by injection-production pattern and polymer flooding and water flooding concerts in the different sand bodies. The major strategies for CIET in multi-faults reservoir were proposed and technology process of well pattern optimization...

... of surfactant/polymer flooding. The mathematical model is as follows: (1) ∇ ⋅ [ k → k ro μ o B o ( ∇ p o − ρ o g ∇ D ) ] + q o = ∂ ∂ t ( ϕ S o B o ) (2) ∇ ⋅ [ k → k ro R s μ oe B o...

... and remaining polymer in reservoir ( Feng et al., 2009 ). And this model was extended to a three-dimensional model for gel microsphere profile control parameters optimization after polymer flooding. The developed model was also validated by history matching results of a one-dimensional experiment and an actual...

... recovery factor for Daqing placanticline is 40%, water cut is 92%. enhanced recovery waterflooding international petroleum conference oilfield Exhibition adjustment Petroleum Conference ior engineering philosophy journal of petroleum technology injection polymer flooding asp flooding...

... repulsion and hydrogen bond between fibers. In addition, it can regain its viscosity after shearing, which seems to be efficient polymer for E&P industry. In this study, we conducted the next core flooding experiments; polymer flooding and profile modification, and evaluated the applicability of CNF...

... heterogeneity sweep control technology dominant flow channel SPE waterflooding polymer flooding dominant filtration channel polymer solution Upstream Oil & Gas pore throat deep reservoir low permeability zone reservoir small pore throat efficiency Introduction Formation sedimentation...

... Abstract Daqing Oilfield is a heterogeneous sandstone reservoir with multiple layers. Polymer flooding in the primary oil layers has achieved significant technological and economic effects. And polymer flooding in the secondary oil layers of middle and low permeability (100~500mD) has began...