Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of core-shell ceramsite fracturing propping agent for oil and gas collection
The invention relates to a preparation method of a core-shell type ceramsite fracturing propping agent for oil and gas collection, which comprises the following steps: (1) grinding municipal sludge containing organic matters into powder, and then granulating and drying to obtain a core precursor; (2) uniformly mixing clay and scrap iron powder, then adding water, and uniformly stirring, so as to obtain inner coating layer slurry; and (3) mixing clay and water, and uniformly stirring to obtain the outer coating layer slurry. And (4) immersing the inner core precursor into inner coating layer slurry to uniformly coat the outer surface of the inner core precursor, then taking out the inner core precursor, drying, then immersing the obtained particles into outer coating layer slurry again to uniformly coat the outer surface of the inner core precursor, then taking out the particles, drying, uniformly placing the particles, and then calcining to obtain the composite material. The ceramsite fracturing propping agent is obtained after completion. The core-shell type fracturing propping agent disclosed by the invention is low in density and has good compression resistance, and the purposes of reducing the density of the fracturing propping agent and keeping the good compression resistance of the fracturing propping agent are achieved.
本发明涉及一种用于油气采集的核壳式陶粒压裂支撑剂的制备方法，包括：（1）将含有有机物的城市污泥磨粉，然后造粒、干燥，得到内核前驱体。（2）将黏土与废铁粉混合均匀，然后加水搅拌均匀，得到内包覆层浆液。（3）将黏土与水混合后搅拌均匀，得到外包覆层浆液。（4）将所述内核前驱体浸入内包覆层浆液中使其外表面均匀挂浆，然后取出内核前驱体干燥，完成后将得到的颗粒再次浸入外包覆层浆液中使其外表面均匀挂浆，然后取出颗粒物干燥，完成后将颗粒物摆放均匀，然后进行煅烧，完成后即得陶粒压裂支撑剂。本发明的核壳式压裂支撑剂不仅密度小，而且具有良好的抗压性能，实现了在降低压裂支撑剂的密度的同时保持其良好的抗压能力的目的。
Preparation method of core-shell ceramsite fracturing propping agent for oil and gas collection
The invention relates to a preparation method of a core-shell type ceramsite fracturing propping agent for oil and gas collection, which comprises the following steps: (1) grinding municipal sludge containing organic matters into powder, and then granulating and drying to obtain a core precursor; (2) uniformly mixing clay and scrap iron powder, then adding water, and uniformly stirring, so as to obtain inner coating layer slurry; and (3) mixing clay and water, and uniformly stirring to obtain the outer coating layer slurry. And (4) immersing the inner core precursor into inner coating layer slurry to uniformly coat the outer surface of the inner core precursor, then taking out the inner core precursor, drying, then immersing the obtained particles into outer coating layer slurry again to uniformly coat the outer surface of the inner core precursor, then taking out the particles, drying, uniformly placing the particles, and then calcining to obtain the composite material. The ceramsite fracturing propping agent is obtained after completion. The core-shell type fracturing propping agent disclosed by the invention is low in density and has good compression resistance, and the purposes of reducing the density of the fracturing propping agent and keeping the good compression resistance of the fracturing propping agent are achieved.
本发明涉及一种用于油气采集的核壳式陶粒压裂支撑剂的制备方法，包括：（1）将含有有机物的城市污泥磨粉，然后造粒、干燥，得到内核前驱体。（2）将黏土与废铁粉混合均匀，然后加水搅拌均匀，得到内包覆层浆液。（3）将黏土与水混合后搅拌均匀，得到外包覆层浆液。（4）将所述内核前驱体浸入内包覆层浆液中使其外表面均匀挂浆，然后取出内核前驱体干燥，完成后将得到的颗粒再次浸入外包覆层浆液中使其外表面均匀挂浆，然后取出颗粒物干燥，完成后将颗粒物摆放均匀，然后进行煅烧，完成后即得陶粒压裂支撑剂。本发明的核壳式压裂支撑剂不仅密度小，而且具有良好的抗压性能，实现了在降低压裂支撑剂的密度的同时保持其良好的抗压能力的目的。
Preparation method of core-shell ceramsite fracturing propping agent for oil and gas collection
一种用于油气采集的核壳式陶粒压裂支撑剂的制备方法
MA CHAO (Autor:in) / ZHANG HUAHUI (Autor:in) / WANG PENG (Autor:in) / XU LONG (Autor:in) / YUAN ZAITAO (Autor:in) / WANG QING (Autor:in) / YU BO (Autor:in) / HUANG ZONGKUI (Autor:in) / ZHANG XIAOLEI (Autor:in)
15.04.2022
Patent
Elektronische Ressource
Chinesisch
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