Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Pressure-bearing plugging agent capable of realizing rapid water loss of drilling fluid, preparation method of pressure-bearing plugging agent, and pressure-bearing plugging slurry
The invention discloses a pressure-bearing plugging agent capable of realizing rapid water loss of a drilling fluid, preparation method of the pressure-bearing plugging agent, and pressure-bearing plugging slurry. The pressure-bearing plugging agent comprises the following components by weight: 1-2 parts of a tackifier, 50-60 parts of a diatomite, 10-20 parts of lime, 10-20 parts of cement, 8-9 parts of fiber, and 1-2 parts of a film-forming plugging agent, wherein the tackifier is industrial-grade xanthan gum or industrial-grade sodium carboxymethyl cellulose, the cement is G-grade cement forwell cementation, and the film-forming plugging agent is polyvinyl acetate. The pressure-bearing plugging agent can realize rapid water loss within half a minute under a pressure of 100 psi to form athick mud cake, plays a role in rapid plugging, has the characteristic of rapid water loss for cracks with different widths, and has very strong pressure-bearing plugging capability which can reach 5MPa.
本发明公开了一种钻井液快速失水承压堵漏剂及其制备方法及承压堵漏浆，所述失水承压堵漏剂按照重量份计，包括增粘剂1‑2份、硅藻土50‑60份、石灰10‑20份、水泥10‑20份、纤维8‑9份、成膜封堵剂1‑2份，所述增粘剂为工业级黄原胶或工业级羧甲基纤维素钠盐，所述水泥为固井用G级水泥，所述成膜封堵剂为聚醋酸乙烯酯。本发明的钻井液快速失水承压堵漏剂在100psi的压力下可以在半分钟快速失水，形成厚泥饼，起到快速堵漏的作用，对于不同宽度的裂缝均具有快速失水的特性，具有很强的承压堵漏能力，承压能力可达5MPa。
Pressure-bearing plugging agent capable of realizing rapid water loss of drilling fluid, preparation method of pressure-bearing plugging agent, and pressure-bearing plugging slurry
The invention discloses a pressure-bearing plugging agent capable of realizing rapid water loss of a drilling fluid, preparation method of the pressure-bearing plugging agent, and pressure-bearing plugging slurry. The pressure-bearing plugging agent comprises the following components by weight: 1-2 parts of a tackifier, 50-60 parts of a diatomite, 10-20 parts of lime, 10-20 parts of cement, 8-9 parts of fiber, and 1-2 parts of a film-forming plugging agent, wherein the tackifier is industrial-grade xanthan gum or industrial-grade sodium carboxymethyl cellulose, the cement is G-grade cement forwell cementation, and the film-forming plugging agent is polyvinyl acetate. The pressure-bearing plugging agent can realize rapid water loss within half a minute under a pressure of 100 psi to form athick mud cake, plays a role in rapid plugging, has the characteristic of rapid water loss for cracks with different widths, and has very strong pressure-bearing plugging capability which can reach 5MPa.
本发明公开了一种钻井液快速失水承压堵漏剂及其制备方法及承压堵漏浆，所述失水承压堵漏剂按照重量份计，包括增粘剂1‑2份、硅藻土50‑60份、石灰10‑20份、水泥10‑20份、纤维8‑9份、成膜封堵剂1‑2份，所述增粘剂为工业级黄原胶或工业级羧甲基纤维素钠盐，所述水泥为固井用G级水泥，所述成膜封堵剂为聚醋酸乙烯酯。本发明的钻井液快速失水承压堵漏剂在100psi的压力下可以在半分钟快速失水，形成厚泥饼，起到快速堵漏的作用，对于不同宽度的裂缝均具有快速失水的特性，具有很强的承压堵漏能力，承压能力可达5MPa。
Pressure-bearing plugging agent capable of realizing rapid water loss of drilling fluid, preparation method of pressure-bearing plugging agent, and pressure-bearing plugging slurry
一种钻井液快速失水承压堵漏剂及其制备方法及承压堵漏浆
GU XINBO (Autor:in) / LU XINZHOU (Autor:in)
12.01.2021
Patent
Elektronische Ressource
Chinesisch
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