Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Self-anti-pollution cement paste for well cementation under oil-based drilling fluid condition
The invention discloses self-anti-pollution cement paste for well cementation under an oil-based drilling fluid condition. The lipophilic cement paste comprises the following components in parts by weight: 100 parts of cement, 3-8 parts of a fluid loss agent, 2-5 parts of a retarder, 0.5-2 parts of an anti-pollution agent A, 3-7 parts of an anti-pollution agent B, 30-60 parts of a high-temperature stabilizer A, 3-5 parts of a high-temperature stabilizer B, 10-80 parts of a density regulator, 0.5-1.5 parts of a dispersing agent, 0.1-0.5 part of a defoaming agent and 35-65 parts of water. The lipophilic cement paste provided by the invention can solve the problem of slow strength development and even non-condensation after cement paste is mixed with oil or oil-based drilling fluid under an oil-based drilling fluid condition, and can reduce local defects formed by the oil-based drilling fluid, reduce damage to mechanical properties of set cement, improve wall surface wettability and improve interface cementation performance.
本发明公开了一种油基钻井液条件下固井用自抗污染水泥浆，该亲油性水泥浆以下重量份数的组分：100份水泥、3～8份降失水剂、2～5份缓凝剂、0.5～2份抗污染剂A、3～7份抗污染剂B、30～60份高温稳定剂A、3～5份高温稳定剂B、10～80份密度调节剂、0.5～1.5份分散剂、0.1～0.5份消泡剂和35～65份水。本发明的亲油性水泥浆能够解决油基钻井液条件下水泥浆混油或油基钻井液后强度发展慢甚至不凝结的问题，该亲油性水泥浆能够降低油基钻井液形成的局部缺陷，减少对水泥石力学性能的损害，改善壁面润湿性，提高界面胶结性能。
Self-anti-pollution cement paste for well cementation under oil-based drilling fluid condition
The invention discloses self-anti-pollution cement paste for well cementation under an oil-based drilling fluid condition. The lipophilic cement paste comprises the following components in parts by weight: 100 parts of cement, 3-8 parts of a fluid loss agent, 2-5 parts of a retarder, 0.5-2 parts of an anti-pollution agent A, 3-7 parts of an anti-pollution agent B, 30-60 parts of a high-temperature stabilizer A, 3-5 parts of a high-temperature stabilizer B, 10-80 parts of a density regulator, 0.5-1.5 parts of a dispersing agent, 0.1-0.5 part of a defoaming agent and 35-65 parts of water. The lipophilic cement paste provided by the invention can solve the problem of slow strength development and even non-condensation after cement paste is mixed with oil or oil-based drilling fluid under an oil-based drilling fluid condition, and can reduce local defects formed by the oil-based drilling fluid, reduce damage to mechanical properties of set cement, improve wall surface wettability and improve interface cementation performance.
本发明公开了一种油基钻井液条件下固井用自抗污染水泥浆，该亲油性水泥浆以下重量份数的组分：100份水泥、3～8份降失水剂、2～5份缓凝剂、0.5～2份抗污染剂A、3～7份抗污染剂B、30～60份高温稳定剂A、3～5份高温稳定剂B、10～80份密度调节剂、0.5～1.5份分散剂、0.1～0.5份消泡剂和35～65份水。本发明的亲油性水泥浆能够解决油基钻井液条件下水泥浆混油或油基钻井液后强度发展慢甚至不凝结的问题，该亲油性水泥浆能够降低油基钻井液形成的局部缺陷，减少对水泥石力学性能的损害，改善壁面润湿性，提高界面胶结性能。
Self-anti-pollution cement paste for well cementation under oil-based drilling fluid condition
一种油基钻井液条件下固井用自抗污染水泥浆
HUANG SHENG (Autor:in) / ZHOU CAN (Autor:in) / LI ZAOYUAN (Autor:in) / SU DONGHUA (Autor:in) / LIU JIAN (Autor:in) / SUN JINFEI (Autor:in)
01.03.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C09K
Materialien für Anwendungen, soweit nicht anderweitig vorgesehen
,
MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR
/
C04B
Kalk
,
LIME
/
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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