Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Bridge plugging synergist for drilling fluid
The invention discloses a bridge plugging synergist for drilling fluid. The bridge plugging synergist comprises the following components in percentage by mass: 20-40% of wood fibers, 35-40% of inorganic mineral fibers, 20-30% of inorganic rigid particles and 5-10% of an inorganic reinforcing agent. The inorganic rigid particles are resin sand with the particle size of 200 meshes or a compound of the resin sand and ceramic powder; the inorganic mineral fiber is a combination of brucite fibers, aluminum silicate fibers and carbon fibers, wherein the brucite fibers are 1-3 mm in length and 0.5-16[mu] m in diameter, the aluminum silicate fibers are 2-4 mm in length and 0.7-20 [mu] m in diameter, and the carbon fibers are 1-4 mm in length and 0.5-18 [mu] m in diameter; wherein the mass ratio of the brucite fibers to the aluminum silicate fibers to the carbon fibers is 5: 4: 1. According to the bridge plugging synergist disclosed by the invention, through the cooperative use of the microfibers and the microparticles, microcracks can be effectively plugged, and the compactness of a bridge plug is improved, so that the pressure bearing capacity is enhanced.
本发明公开了一种钻井液用桥堵增效剂，其包括如下质量百分比的组分：木质纤维20～40％、无机矿物纤维35～40％、无机刚性颗粒20～30％、无机增强剂5～10％。无机刚性颗粒为粒径200目的树脂砂或树脂砂与陶瓷粉体的复配物；无机矿物纤维为水镁石纤维、硅酸铝纤维、碳纤维三者的组合；水镁石纤维长度1～3mm，直径0.5～16um，硅酸铝纤维长度2～4mm，直径0.7～20um，碳纤维长度1～4mm，直径0.5～18um；水镁石纤维、硅酸铝纤维、碳纤维的质量比为5:4:1。本发明的桥堵增效剂中通过微纤维和微颗粒的配合使用，能有效对微裂缝进行封堵及提高桥塞的致密性从而增强承压能力。
Bridge plugging synergist for drilling fluid
The invention discloses a bridge plugging synergist for drilling fluid. The bridge plugging synergist comprises the following components in percentage by mass: 20-40% of wood fibers, 35-40% of inorganic mineral fibers, 20-30% of inorganic rigid particles and 5-10% of an inorganic reinforcing agent. The inorganic rigid particles are resin sand with the particle size of 200 meshes or a compound of the resin sand and ceramic powder; the inorganic mineral fiber is a combination of brucite fibers, aluminum silicate fibers and carbon fibers, wherein the brucite fibers are 1-3 mm in length and 0.5-16[mu] m in diameter, the aluminum silicate fibers are 2-4 mm in length and 0.7-20 [mu] m in diameter, and the carbon fibers are 1-4 mm in length and 0.5-18 [mu] m in diameter; wherein the mass ratio of the brucite fibers to the aluminum silicate fibers to the carbon fibers is 5: 4: 1. According to the bridge plugging synergist disclosed by the invention, through the cooperative use of the microfibers and the microparticles, microcracks can be effectively plugged, and the compactness of a bridge plug is improved, so that the pressure bearing capacity is enhanced.
本发明公开了一种钻井液用桥堵增效剂，其包括如下质量百分比的组分：木质纤维20～40％、无机矿物纤维35～40％、无机刚性颗粒20～30％、无机增强剂5～10％。无机刚性颗粒为粒径200目的树脂砂或树脂砂与陶瓷粉体的复配物；无机矿物纤维为水镁石纤维、硅酸铝纤维、碳纤维三者的组合；水镁石纤维长度1～3mm，直径0.5～16um，硅酸铝纤维长度2～4mm，直径0.7～20um，碳纤维长度1～4mm，直径0.5～18um；水镁石纤维、硅酸铝纤维、碳纤维的质量比为5:4:1。本发明的桥堵增效剂中通过微纤维和微颗粒的配合使用，能有效对微裂缝进行封堵及提高桥塞的致密性从而增强承压能力。
Bridge plugging synergist for drilling fluid
一种钻井液用桥堵增效剂
HUANG XUDONG (Autor:in) / XIE QI (Autor:in) / HE YACONG (Autor:in) / SHEN WEI (Autor:in) / SHEN-YANG AOQIONG (Autor:in) / LI TING (Autor:in)
12.03.2021
Patent
Elektronische Ressource
Chinesisch
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