Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Oilfield temperature-resistant plugging agent and preparation method thereof
The embodiment of the invention discloses an oilfield temperature-resistant plugging agent and a preparation method thereof, and belongs to the technical field of oil-water well plugging, the oilfield temperature-resistant plugging agent comprises the following components by mass: 53-57% of aluminate cement powder with various particle sizes; 1.7%-4% of fly ash; 3%-7% of silica fume; 0.003%-0.1% of a stabilizer; 1%-2.5% of a conditioning agent; and the balance of water. The oilfield temperature-resistant plugging agent provided by the embodiment of the invention is relatively low in initial consistency, and the thickening time is more than 6.5 h under the conditions of 150 DEG C and 50 MPa; the compressive strength is larger than 29 MPa, and the requirements for deep well seal layer and channeling sealing strength are met; and the compressive strength is always kept at 28 MPa or above within 168 hours under the condition of 150 DEG C.
本发明实施例公开了一种油田耐温封堵剂及其制备方法，属于油水井封堵技术领域，该油田耐温封堵剂包括以下质量百分比的组分：具有多种粒径的铝酸盐水泥粉53％‑57％；粉煤灰1.7％‑4％；微硅粉3％‑7％；稳定剂0.003％‑0.1％；调节剂1％‑2.5％；以及余量的水。本发明实施例提供的油田耐温封堵剂的初始稠度较低，在150℃及50MPa条件下稠化时间大于6.5h以上；抗压强度大于29MPa，满足深井封层以及封窜强度要求；在150℃的条件下168h内，抗压强度一直保持在28MPa以上。
Oilfield temperature-resistant plugging agent and preparation method thereof
The embodiment of the invention discloses an oilfield temperature-resistant plugging agent and a preparation method thereof, and belongs to the technical field of oil-water well plugging, the oilfield temperature-resistant plugging agent comprises the following components by mass: 53-57% of aluminate cement powder with various particle sizes; 1.7%-4% of fly ash; 3%-7% of silica fume; 0.003%-0.1% of a stabilizer; 1%-2.5% of a conditioning agent; and the balance of water. The oilfield temperature-resistant plugging agent provided by the embodiment of the invention is relatively low in initial consistency, and the thickening time is more than 6.5 h under the conditions of 150 DEG C and 50 MPa; the compressive strength is larger than 29 MPa, and the requirements for deep well seal layer and channeling sealing strength are met; and the compressive strength is always kept at 28 MPa or above within 168 hours under the condition of 150 DEG C.
本发明实施例公开了一种油田耐温封堵剂及其制备方法，属于油水井封堵技术领域，该油田耐温封堵剂包括以下质量百分比的组分：具有多种粒径的铝酸盐水泥粉53％‑57％；粉煤灰1.7％‑4％；微硅粉3％‑7％；稳定剂0.003％‑0.1％；调节剂1％‑2.5％；以及余量的水。本发明实施例提供的油田耐温封堵剂的初始稠度较低，在150℃及50MPa条件下稠化时间大于6.5h以上；抗压强度大于29MPa，满足深井封层以及封窜强度要求；在150℃的条件下168h内，抗压强度一直保持在28MPa以上。
Oilfield temperature-resistant plugging agent and preparation method thereof
一种油田耐温封堵剂及其制备方法
QI XINGTAO (Autor:in) / YU YONGSHENG (Autor:in) / ZOU XIAOPING (Autor:in) / DAI JINGUANG (Autor:in) / LIU HE (Autor:in) / HE LEI (Autor:in) / WANG HAO (Autor:in) / CAO ZUOWEI (Autor:in) / ZHONG HUA (Autor:in) / LIAO HANMING (Autor:in)
28.09.2021
Patent
Elektronische Ressource
Chinesisch
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