Thermo-/pH-Dual-Sensitive PEG/PAMAM Nanogel: Reaction Dynamics and Plugging Application of CO2 Channeling

Smart hydrogels, owing to their exceptional viscoelastic and deformable capacity in response to environmental stimulation involving temperature and pH, have been successfully applied in oilfields for purposes such as water and/or gas shutoff treatments. However, the CO2 breakthrough problem in low permeability reservoirs has not been well solved. In this work, a rheological method-based Avrami dynamics model and Dickinson dynamics model were employed to investigate the dynamic gelation process of thermo-/pH-dual-sensitive PEG/PAMAM nanogels to further our understanding of the microstructure of their gelation and pertinence plugging application. Plugging experiments were performed by alternating injections of CO2 and hydrogel solution in a slug type on three fractured low permeability cores with a backpressure of 13 MPa. The nanogels presented a secondary growth pattern from three to one dimension from micrometer to nanometer size with a morphological transformation from a sphere to an irregular ellipsoid or disk shape. The phase transition temperature was 50 °C, and the phase transition pH was 10. If both or either were below these values, the hydrogel swelled; otherwise, it shrank. Plugging results show that the plugging efficiency was higher than 99%. The maximum breakthrough pressure was 19.93 MPa, and the corresponding residual pressure remained 17.64 MPa for a 10 mD core, exhibiting great plugging performance and high residual resistance after being broken through by CO2.

[1]  A. Romero,et al.  Novel Trends in Hydrogel Development for Biomedical Applications: A Review , 2022, Polymers.

[2]  Jingbing Yang,et al.  Types and Performances of Polymer Gels for Oil-Gas Drilling and Production: A Review , 2022, Gels.

[3]  L. Chu,et al.  Designable Micro‐/Nano‐Structured Smart Polymeric Materials , 2021, Advanced materials.

[4]  Kaiyang Wang,et al.  High-tough hydrogels formed via Schiff base reaction between PAMAM dendrimer and Tetra-PEG and their potential as dual-function delivery systems , 2021, Materials Today Communications.

[5]  Hua Sun,et al.  An Insight into Skeletal Networks Analysis for Smart Hydrogels , 2021, Advanced Functional Materials.

[6]  Mingzhen Wei,et al.  A comprehensive review of in-situ polymer gel simulation for conformance control , 2021, Petroleum Science.

[7]  X. Loh,et al.  Thermo-Responsive Hydrogels: From Recent Progress to Biomedical Applications , 2021, Gels.

[8]  T. Katashima Rheological studies on polymer networks with static and dynamic crosslinks , 2021, Polymer Journal.

[9]  Meiqin Lin,et al.  CO2-responsive agent for restraining gas channeling during CO2 flooding in low permeability reservoirs , 2021 .

[10]  Junwei Su,et al.  Pore-Scale Simulation of Particle Flooding for Enhancing Oil Recovery , 2021, Energies.

[11]  M. Rogers,et al.  Supramolecular Fractal Growth of Self-Assembled Fibrillar Networks , 2021, Gels.

[12]  Jiayue Shi,et al.  PEG-based thermosensitive and biodegradable hydrogels. , 2021, Acta biomaterialia.

[13]  Hongbin Yang,et al.  Progress of polymer gels for conformance control in oilfield. , 2021, Advances in colloid and interface science.

[14]  Li Wang,et al.  Synthesis of Poly(ethylene glycol) Grafted Polyamidoamine Dendrimer Hydrogels and Their Temperature and pH Sensitive Properties , 2020, Polymer Science, Series B.

[15]  H. Frey,et al.  Amino-functional polyethers: versatile, stimuli-responsive polymers , 2020 .

[16]  A. Heydarinasab,et al.  Adsorption and controlled release of iron-chelating drug from the amino-terminated PAMAM/ordered mesoporous silica hybrid materials , 2020 .

[17]  A. Merati,et al.  Preparation, Classification, and Applications of Smart Hydrogels , 2019, Advanced Functional Textiles and Polymers.

[18]  Sytze J Buwalda,et al.  Ultrafast in situ forming poly(ethylene glycol)‐poly(amido amine) hydrogels with tunable drug release properties via controllable degradation rates , 2019, European journal of pharmaceutics and biopharmaceutics : official journal of Arbeitsgemeinschaft fur Pharmazeutische Verfahrenstechnik e.V.

[19]  I. Carlsen,et al.  Near well-bore sealing in the Bečej CO2 reservoir: Field tests of a silicate based sealant , 2019, International Journal of Greenhouse Gas Control.

[20]  N. Drouiche,et al.  Review of recent advances in polyethylenimine crosslinked polymer gels used for conformance control applications , 2019, Polymer Bulletin.

[21]  C. Echeverría,et al.  Functional Stimuli-Responsive Gels: Hydrogels and Microgels , 2018, Gels.

[22]  Xiguang Chen,et al.  Chitosan-Based Thermo/pH Double Sensitive Hydrogel for Controlled Drug Delivery. , 2018, Macromolecular bioscience.

[23]  Tuan Liu,et al.  Temperature and pH Responsive Hydrogels Using Methacrylated Lignosulfonate Cross-Linker: Synthesis, Characterization, and Properties , 2018 .

[24]  M. Bernards,et al.  Polyampholyte Hydrogels in Biomedical Applications , 2017, Gels.

[25]  K. Ribbeck,et al.  A Rheological Study of the Association and Dynamics of MUC5AC Gels. , 2017, Biomacromolecules.

[26]  Zhengming Yang,et al.  Experimental investigation on CO2 injection in the Daqing extra/ultra-low permeability reservoir , 2017 .

[27]  Mojgan Hadi Mosleh,et al.  The Use of Polymer-gel Solutions for CO2 Flow Diversion and Mobility Control within Storage Sites , 2016 .

[28]  Rong-Yao Wang,et al.  Distinct kinetics of molecular gelation in a confined space and its relation to the structure and property of thin gel films. , 2015, Physical chemistry chemical physics : PCCP.

[29]  Jianbo Wang,et al.  Performance and gas breakthrough during CO2 immiscible flooding in ultra-low permeability reservoirs , 2014 .

[30]  Waham Ashaier Laftah,et al.  Polymer Hydrogels: A Review , 2011 .

[31]  M. Rogers,et al.  Experimental validation of the modified Avrami model for non-isothermal crystallization conditions , 2011 .

[32]  Xiang‐Yang Liu,et al.  Architecture of fiber network: from understanding to engineering of molecular gels. , 2006, The journal of physical chemistry. B.

[33]  S. Raghavan,et al.  Kinetics of 5α-Cholestan-3β-yl N-(2-Naphthyl)carbamate/n-Alkane Organogel Formation and Its Influence on the Fibrillar Networks , 2005 .

[34]  M. Morbidelli,et al.  A Model Relating Structure of Colloidal Gels to Their Elastic Properties , 2001 .

[35]  C. Carrot,et al.  Crystallization of Polyolefins from Rheological MeasurementsRelation between the Transformed Fraction and the Dynamic Moduli , 1998 .

[36]  M. Whittle,et al.  Large deformation rheological behaviour of a model particle gel , 1998 .

[37]  M. Avrami Granulation, Phase Change, and Microstructure Kinetics of Phase Change. III , 1941 .

[38]  Yining Wu,et al.  CO2 responsive expansion hydrogels with programmable swelling for in-depth CO2 conformance control in porous media , 2022, Fuel.