IMECH-IR  > 环境力学重点实验室(2009-2011)
Microscopic Roles of "Viscoelasticity" in HPMA polymer flooding for EOR
Zhang Z(张珍); Li JC(李家春); Zhou JF(周济福); Li, JC (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Environm Mech, Beijing 100190, Peoples R China
Source PublicationTransport in Porous Media
AbstractA polymer solution with a transient network structure due to the entanglement of long chain molecules exhibits a viscoelastic behavior when it flows through a tortuous and diverging/converging channel in porous media. A constitutive equation is first developed to represent the viscoelastic behavior of polymer solutions in this article. Then a 3D viscoelastic polymer flooding model is established to examine the effect of elasticity of polymers on EOR (enhanced oil recovery). The model is validated in comparison with laboratorial coring data. The simulated results show that the oil recovery of viscoelastic polymer flooding can be enhanced by larger displacement efficiency due to its microscopic roles. In the meanwhile, the injection pressure required increases correspondingly if the elastic effect is significant. Relaxation time as a major characteristic parameter of viscoelastic polymer plays a decisive role, and therefore the HPAM (partially hydrolyzed polyacrylamide) with evident elastic property is recommended in chemical flooding.
KeywordViscoelastic Porous Media Constitutive Equation Hpam Eor Porous Media Residual Oil Flow
Subject AreaEngineering
Indexed BySCI ; EI
WOS IDWOS:000286798900014
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
Funding OrganizationThis work was supported by the National Basic Research Program of China ("973" Program) (Grant No. 2005CB221300).
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Cited Times:68[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorLi, JC (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Environm Mech, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Zhang Z,Li JC,Zhou JF,et al. Microscopic Roles of "Viscoelasticity" in HPMA polymer flooding for EOR[J]. Transport in Porous Media,2011,86(1):229-244.
APA 张珍,李家春,周济福,&Li, JC .(2011).Microscopic Roles of "Viscoelasticity" in HPMA polymer flooding for EOR.Transport in Porous Media,86(1),229-244.
MLA 张珍,et al."Microscopic Roles of "Viscoelasticity" in HPMA polymer flooding for EOR".Transport in Porous Media 86.1(2011):229-244.
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