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High-temperature well cementation suspension stabilizer emulsion polymer as well as preparation method and application thereof
The invention belongs to the technical field of oil and gas well development, and discloses a suspension stabilizer emulsion polymer for high-temperature well cementation as well as a preparation method and application thereof. The method comprises the following steps: emulsifying an oil-phase material and a water-phase material to obtain a monomer emulsion; the water-phase material comprises monomers A, B, C and D, a main emulsifier, an auxiliary emulsifier and water; and carrying out polymerization reaction on the monomer emulsion in the presence of an initiator to obtain the suspension stabilizer emulsion polymer. The emulsion polymer of the suspension stabilizer contains a structural unit A as shown in a formula (I), a structural unit B as shown in a formula (II), a structural unit C as shown in a formula (III) and a result unit D as shown in a formula (IV), the suspension stabilizer emulsion polymer has good temperature resistance and rheological adjusting effect, can effectively improve the rheological and stable performance of well cementation cement slurry under the high temperature condition when being used as a well cementation cement slurry additive, can resist the temperature of 190 DEG C, and solves the problem of sedimentation instability of the well cementation cement slurry under the conditions of high temperature and high density.
本发明属于油气井开发技术领域，公开了一种高温固井用悬浮稳定剂乳液聚合物、制备方法及其应用。该方法先将油相物料与水相物料进行乳化，得到单体乳液；所述水相物料包括单体A、B、C和D、主乳化剂、辅助乳化剂和水；再将所述单体乳液在引发剂存在下进行聚合反应，得到悬浮稳定剂乳液聚合物。该悬浮稳定剂乳液聚合物含有式(I)所示的结构单元A、式(II)所示的结构单元B、式(III)所示的结构单元C和式(Ⅳ)所示的结果单元D；所述的悬浮稳定剂乳液聚合物具有较好的抗温能力和流变调节效果，作为固井水泥浆添加剂时，能够有效提高固井水泥浆在高温条件下的流变及稳定性能，耐温达190℃，解决固井水泥浆在高温、高密度条件下的沉降失稳难题。
High-temperature well cementation suspension stabilizer emulsion polymer as well as preparation method and application thereof
The invention belongs to the technical field of oil and gas well development, and discloses a suspension stabilizer emulsion polymer for high-temperature well cementation as well as a preparation method and application thereof. The method comprises the following steps: emulsifying an oil-phase material and a water-phase material to obtain a monomer emulsion; the water-phase material comprises monomers A, B, C and D, a main emulsifier, an auxiliary emulsifier and water; and carrying out polymerization reaction on the monomer emulsion in the presence of an initiator to obtain the suspension stabilizer emulsion polymer. The emulsion polymer of the suspension stabilizer contains a structural unit A as shown in a formula (I), a structural unit B as shown in a formula (II), a structural unit C as shown in a formula (III) and a result unit D as shown in a formula (IV), the suspension stabilizer emulsion polymer has good temperature resistance and rheological adjusting effect, can effectively improve the rheological and stable performance of well cementation cement slurry under the high temperature condition when being used as a well cementation cement slurry additive, can resist the temperature of 190 DEG C, and solves the problem of sedimentation instability of the well cementation cement slurry under the conditions of high temperature and high density.
本发明属于油气井开发技术领域，公开了一种高温固井用悬浮稳定剂乳液聚合物、制备方法及其应用。该方法先将油相物料与水相物料进行乳化，得到单体乳液；所述水相物料包括单体A、B、C和D、主乳化剂、辅助乳化剂和水；再将所述单体乳液在引发剂存在下进行聚合反应，得到悬浮稳定剂乳液聚合物。该悬浮稳定剂乳液聚合物含有式(I)所示的结构单元A、式(II)所示的结构单元B、式(III)所示的结构单元C和式(Ⅳ)所示的结果单元D；所述的悬浮稳定剂乳液聚合物具有较好的抗温能力和流变调节效果，作为固井水泥浆添加剂时，能够有效提高固井水泥浆在高温条件下的流变及稳定性能，耐温达190℃，解决固井水泥浆在高温、高密度条件下的沉降失稳难题。
High-temperature well cementation suspension stabilizer emulsion polymer as well as preparation method and application thereof
高温固井悬浮稳定剂乳液聚合物及其制备方法与应用
WANG CHENGWEN (author) / SONG LIFANG (author) / CHEN ZEHUA (author) / WANG CHENGLI (author) / XUE ZEDONG (author) / GUO XINYANG (author)
2023-04-18
Patent
Electronic Resource
Chinese
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
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C04B
Kalk
,
LIME
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C09K
Materialien für Anwendungen, soweit nicht anderweitig vorgesehen
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MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR
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