Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Polymer, polymer emulsion, preparation method of polymer emulsion, cement paste and application of cement paste
The invention relates to the technical field of oil and gas field well cementation cement slurry materials, and discloses a polymer, a polymer emulsion, a preparation method of the polymer emulsion, cement slurry and application of the cement slurry, and the polymer is characterized by comprising a structural unit A from long-chain alkene, a structural unit B from styrene and a structural unit C from a cross-linking agent monomer, and a structural unit D derived from a water-soluble monomer; the polymer provided by the invention and/or the polymer emulsion with the polymer being latex particles are added into cement paste to serve as a cement paste self-repairing agent, the cement paste which is uniformly dispersed and stable in performance can be prepared, after the cement paste is cured, the elasticity modulus of formed cement stone is greatly reduced compared with that of conventional cement stone, the breaking strength of the hardened cement stone is improved, and the service life of the cement paste is prolonged. The gas permeability of the set cement is reduced, and the self-repairing performance when meeting oil gas is achieved, so that the long-term sealing performance of the cement sheath is guaranteed.
本发明涉及油气田固井水泥浆材料技术领域，公开了一种聚合物和聚合物乳液及其制备方法和水泥浆及其应用，其特征在于，所述聚合物包含：来自长链烯的结构单元A，来自苯乙烯的结构单元B，来自交联剂单体的结构单元C，和来自水溶性单体的结构单元D；在水泥浆中加入本发明提供的聚合物和/或该聚合物为乳胶颗粒的聚合物乳液作为水泥浆自修复剂，可配制出分散均匀、性能稳定的水泥浆，该水泥浆固化后，形成的水泥石弹性模量较常规水泥石大幅降低，提高硬化水泥石的抗折强度，降低水泥石的气体渗透率并具有遇油气自修复性能，从而保障水泥环长期密封性。
Polymer, polymer emulsion, preparation method of polymer emulsion, cement paste and application of cement paste
The invention relates to the technical field of oil and gas field well cementation cement slurry materials, and discloses a polymer, a polymer emulsion, a preparation method of the polymer emulsion, cement slurry and application of the cement slurry, and the polymer is characterized by comprising a structural unit A from long-chain alkene, a structural unit B from styrene and a structural unit C from a cross-linking agent monomer, and a structural unit D derived from a water-soluble monomer; the polymer provided by the invention and/or the polymer emulsion with the polymer being latex particles are added into cement paste to serve as a cement paste self-repairing agent, the cement paste which is uniformly dispersed and stable in performance can be prepared, after the cement paste is cured, the elasticity modulus of formed cement stone is greatly reduced compared with that of conventional cement stone, the breaking strength of the hardened cement stone is improved, and the service life of the cement paste is prolonged. The gas permeability of the set cement is reduced, and the self-repairing performance when meeting oil gas is achieved, so that the long-term sealing performance of the cement sheath is guaranteed.
本发明涉及油气田固井水泥浆材料技术领域，公开了一种聚合物和聚合物乳液及其制备方法和水泥浆及其应用，其特征在于，所述聚合物包含：来自长链烯的结构单元A，来自苯乙烯的结构单元B，来自交联剂单体的结构单元C，和来自水溶性单体的结构单元D；在水泥浆中加入本发明提供的聚合物和/或该聚合物为乳胶颗粒的聚合物乳液作为水泥浆自修复剂，可配制出分散均匀、性能稳定的水泥浆，该水泥浆固化后，形成的水泥石弹性模量较常规水泥石大幅降低，提高硬化水泥石的抗折强度，降低水泥石的气体渗透率并具有遇油气自修复性能，从而保障水泥环长期密封性。
Polymer, polymer emulsion, preparation method of polymer emulsion, cement paste and application of cement paste
聚合物和聚合物乳液及其制备方法和水泥浆及其应用
ZENG MIN (Autor:in) / ZHOU SHIMING (Autor:in) / WANG QICHUN (Autor:in) / LIU RENGGUANG (Autor:in) / WANG XIAOJING (Autor:in) / MIAO XIA (Autor:in) / YANG HONGQI (Autor:in)
05.07.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C08F
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
,
Makromolekulare Verbindungen, erhalten durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind
/
C04B
Kalk
,
LIME
/
C09K
Materialien für Anwendungen, soweit nicht anderweitig vorgesehen
,
MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR
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