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Keywords: polymer
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Proceedings Papers

Paper presented at the SPE Russian Petroleum Technology Conference, October 12–15, 2021
Paper Number: SPE-206426-MS
...Abstract Abstract One of the motivations for EOR methods is the possible instability of the front between phases with high contrast of mobility. Highly viscous polymer slug partially solves the problem by stabilizing the front between water and oil. During further water displacement viscous...
Proceedings Papers

Paper presented at the SPE Russian Petroleum Technology Conference, October 12–15, 2021
Paper Number: SPE-206428-MS
... of high-molecular polymers in a porous medium using special model is considered in this paper. The aim of the investigation is the solution of inverse problem of polymer transport with adsorption. The key data for this are the characteristic times of the polymer front propagation, water and rock densities...
Proceedings Papers

Paper presented at the SPE Russian Petroleum Technology Conference, October 12–15, 2021
Paper Number: SPE-206436-MS
...Abstract Abstract Nowadays, chemical EOR methods are becoming more and more relevant, among which the alkali-surfactant-polymer flooding is of particular interest. The efficiency of this technology largely depends on the correct choice of the components of chemical formulation, which should...
Proceedings Papers

Paper presented at the SPE Russian Petroleum Technology Conference, October 12–15, 2021
Paper Number: SPE-206644-MS
... viscosity and excellent proppant transport ability, the crosslinked polymer gels have a significant drawback – negative effect on proppant pack conductivity (residual conductivity less than 50%) even in the presence of oxidative destructors due to the presence of insoluble residues, loss of width...
Proceedings Papers

Paper presented at the SPE Russian Petroleum Technology Conference, October 12–15, 2021
Paper Number: SPE-206554-MS
...Abstract Abstract The aim of the work is to create representative 1D- and 3D-models of surfactant-polymer flooding, considering the most significant physical and chemical phenomena that occur during this process, and further efficiency evaluation of the method. The paper describes approaches...
Proceedings Papers

Paper presented at the SPE Russian Petroleum Technology Conference, October 26–29, 2020
Paper Number: SPE-201823-MS
... Abstract Many factors affect the efficiency of polymer flooding, but the key is polymer adsorption on the rock. The analysis of the main methods of experimental elaboration of uncertainties associated with the estimation of adsorption on micromodels is carried out in this article. As part...
Proceedings Papers

Paper presented at the SPE Russian Petroleum Technology Conference, October 26–29, 2020
Paper Number: SPE-201830-MS
... Abstract The paper reports on the procedures of selection and evaluation of surfactant-polymer composition to improve the development efficiency of Kharyaga field D 3 -III carbonate formation. The main goal was to establish an efficient chemical composition that could significantly improve oil...
Proceedings Papers

Paper presented at the SPE Russian Petroleum Technology Conference, October 26–29, 2020
Paper Number: SPE-201838-MS
... Abstract In this work, we present a new-type salt-tolerant functional polymer (CBHB) for ultra-high salinity conditions, and investigated its feasibility for polymer flooding in a fractured carbonate reservoir with a salinity of more than 220000 mg/L (Ca 2+ + Mg 2+ > 10000 mg/L...
Proceedings Papers

Paper presented at the SPE Russian Petroleum Technology Conference, October 26–29, 2020
Paper Number: SPE-202068-MS
... Abstract In this paper, the properties of an alternative fluid for hydraulic fracturing (HF) technology based on hydrophobically modified polyacrylamide (HM-PAAm) are studied. HM-PAAm forms gels as a result of cross-linking of polymer chains by hydrophobic domains. Such cross-links are strong...
Proceedings Papers

Paper presented at the SPE Russian Petroleum Technology Conference, October 26–29, 2020
Paper Number: SPE-202071-MS
...: invert emulsion muds, biopolymer solutions, crosslinked gels and water-swellable polymers. However, they demonstrated low efficiency. A new killing technology based on a foam-gel system was selected and adapted to the existing conditions to enhance killing efficiency in complicated geological conditions...
Proceedings Papers

Paper presented at the SPE Russian Petroleum Technology Conference, October 22–24, 2019
Paper Number: SPE-196985-MS
... into the water required during the preparation stage. The strategy for a unheated water based fracturing fluid optimization is based on counteracting the factors mentioned above. In course of laboratory optimization, to assess polymer hydration rate, a linear gel was prepared in water...
Proceedings Papers

Paper presented at the SPE Russian Petroleum Technology Conference, October 22–24, 2019
Paper Number: SPE-196771-MS
... the parameters of surfactant and polymer solutions, necessary for further analytical evaluation and reservoir simulation. It is necessary to conduct laboratory experiments to perform technical and economic assessment of the chemical EORs implementation. One of the most important issues here is to determine...
Proceedings Papers

Paper presented at the SPE Russian Petroleum Technology Conference, October 22–24, 2019
Paper Number: SPE-196796-MS
... water well. WBM is much simpler to prepare than O/SBM, so WBM can be quickly prepared as required, and WBM downhole losses can often be cured more easily. Typical polymer-based WBM does not have high temperature stability, and is usually restricted to wells where the bottomhole temperature is less than...
Proceedings Papers

Paper presented at the SPE Russian Petroleum Technology Conference, October 22–24, 2019
Paper Number: SPE-196772-MS
... makes possible to use treated produced water as injection medium and it decreases the costs of mix water preparation. The main object of the paper is to evaluate the potential applicability of chemical EOR (surfactant, polymer compositions). During the investigations, we should consider the risks...
Proceedings Papers

Paper presented at the SPE Russian Petroleum Technology Conference, October 22–24, 2019
Paper Number: SPE-196765-MS
... into sub-categories such as; Soluble oils, swollen micelles, fine emulsions, and microemulsions. The high concentration solutions are also named as micellar solutions ( Gogarty 1978 ). Micellar polymer (MP) drive process is classified as an Enhanced Oil Recovery Technique which based on pumping...
Proceedings Papers

Paper presented at the SPE Russian Petroleum Technology Conference, October 22–24, 2019
Paper Number: SPE-196775-MS
... polyacrylamides with different molecular weights were used. The solutions were organically crosslinked using a polyethylenemine (PEI). The effects of different factors including temperature, brine salinity, pH, and polymer and cross-linker concentrations on gelation time were investigated using bottle tests...
Proceedings Papers

Paper presented at the SPE Russian Petroleum Technology Conference, October 22–24, 2019
Paper Number: SPE-196855-MS
... waterflooding core model composition gel water 7 enhanced recovery concentration sodium sulphate application flow experiment polymer lfr channel precipitate core sample upstream oil & gas formation temperature experiment visovoe field reservoir formation water injection...
Proceedings Papers

Paper presented at the SPE Russian Petroleum Technology Conference, October 22–24, 2019
Paper Number: SPE-196768-MS
... Abstract A modified ASP flooding technology, in which polymer and alkali-surfactant solution are injected alternatively for several turns, rather than being injected simultaneously as the traditional way, is studied by both lab experiments and a field test. Experimental results show...
Proceedings Papers

Paper presented at the SPE Russian Petroleum Technology Conference, October 15–17, 2018
Paper Number: SPE-191578-18RPTC-MS
... Abstract Surfactant-polymer (SP) flooding is a promising chemical enhanced oil recovery method in carbonates with high salinity brines especially where an existing waterflooding infrastructure is in place. SP flooding improves both the microscopic and macroscopic sweep efficiencies...
Proceedings Papers

Paper presented at the SPE Russian Petroleum Technology Conference, October 16–18, 2017
Paper Number: SPE-187729-MS
... to cracking, elasticity, transparency, adhesion characteristics by means of copolymerization with other olefins, polar monomers. To improve the toughness and other physical properties by mixing with other polymers or copolymers. The chemical, physical and performance properties of polyethylene depend...

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