SLURRY MIXING SYSTEM, AND SYSTEM FOR CEMENTING SPACE BETWEEN DEEP EXCAVATION HOLE AND CASING

• Main Authors: YOON, Kern Shin, YOON, Woon Sang, LEE, Sang Don, JEON, Jae Soo, HONG, Hoon Ki, HAN, Yeong Hun
• Format: Patent
• Language: English; French; Korean
• Published: 15.12.2016
• Subjects: EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS; PERFORMING OPERATIONS; PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL,e.g. PLASTER; TRANSPORTING; WORKING CEMENT, CLAY, OR STONE

The present invention relates to a slurry mixing system and a system for cementing a space between a deep excavation hole and a casing. The slurry mixing system according to one embodiment of the present invention comprises: a jet mixing unit in which, when producing cement slurry, cement supplied from the outside is mixed with water or cement, or cement and water is additionally added to the recirculation cement slurry, which is recirculated, so as to produce and discharge the cement slurry, and when discharging mud slurry, mud slurry supplied from the outside is received so as to be discharged, or the mud slurry supplied from the outside and water are added to and mixed with the recirculation mud slurry, which is recirculated, so as to produce and discharge the mud slurry of a set viscosity range; a temporary-storage unit for temporarily storing the cement slurry or the mud slurry, which is discharged from the jet mixing unit; and a discharge unit for recirculating or supplying the cement slurry or the mud slurry, which is discharged from the temporary-storage unit, to the outside according to the operation of a valve. La présente invention concerne un système de mélange de boue et un système pour cimenter l'espace entre un trou d'excavation profond et un tubage. Le système de mélange de boue selon un mode de réalisation de la présente invention comprend : une unité de mélange par jet dans laquelle, lors de la production de lait de ciment, du ciment fourni depuis l'extérieur est mélangé à de l'eau ou à du ciment, ou du ciment et de l'eau sont ajoutés en plus au lait de ciment de recirculation, qui est recirculé, afin de produire et de décharger le lait de ciment, et, lors de la décharge de boue, de la boue fournie depuis l'extérieur est reçue de manière à être déchargée, ou la boue fournie depuis l'extérieur et de l'eau sont ajoutés et mélangés à la boue de recirculation, qui est recirculée, afin de produire et de décharger une boue présentant une plage de viscosité définie ; une unité de stockage temporaire, qui sert à stocker temporairement le laitier de ciment ou la boue déchargé(e) par l'unité de mélange par jet ; et une unité de décharge, qui sert à faire recirculer ou à fournir le lait de ciment ou la boue déchargé(e) à partir de l'unité de stockage temporaire vers l'extérieur selon l'actionnement d'une vanne. 본 발명은 슬러리 믹싱 시스템 및 대심도의 굴착공과 케이싱 사이 공간 시멘팅 시스템에 관한 것이다. 본 발명의 하나의 실시예에 따른 슬러리 믹싱 시스템은: 시멘트 슬러리 생성시 외부에서 공급되는 시멘트와 물을 혼합하거나 재순환되는 재순환 시멘트 슬러리에 시멘트, 또는 시멘트와 물을 추가 혼합하여 시멘트 슬러리를 생성하여 토출시키고, 머드 슬러리 토출시 외부에서 공급되는 머드 슬러리를 공급받아 토출시키거나 재순환되는 재순환 머드 슬러리에 외부에서 공급되는 머드 슬러리 또는 물을 추가 혼합하여 설정된 점성범위의 머드 슬러리를 생성하여 토출시키는 제트믹싱유닛; 제트믹싱유닛에서 토출되는 시멘트 슬러리 또는 머드 슬러리를 임시 저장하는 임시저장유닛; 및 밸브 작동에 따라, 임시저장유닛에서 토출되는 시멘트 슬러리 또는 머드 슬러리를 재순환시키거나 외부로 공급하는 토출유닛;을 포함한다.