CAJ | 학술논문

单流阀作为分层注水、分层调驱、防污染等管柱底阀时，往往存在上部固相颗粒无处沉积并卡死阀球的现象，造成措施管柱失效。为此，研制了具有侧向进液、分流沉积通道、单向球弹簧扶正等机构的分流沉积井下进液器，该进液器具有侧管进液、分流通道沉砂、阀球不易砂卡等功能，与措施管柱组合，能够起到卡封管柱的侧向进液、分层注入管柱的反洗井、分层调驱和防污染管柱的固相颗粒沉入下部尾管的作用，提高了措施管柱的可靠性，增强了措施管柱在出砂、斜井条件下的适应性。
단류벌작위분층주수、분층조구、방오염등관주저벌시，왕왕존재상부고상과립무처침적병잡사벌구적현상，조성조시관주실효。위차，연제료구유측향진액、분류침적통도、단향구탄황부정등궤구적분류침적정하진액기，해진액기구유측관진액、분류통도침사、벌구불역사잡등공능，여조시관주조합，능구기도잡봉관주적측향진액、분층주입관주적반세정、분층조구화방오염관주적고상과립침입하부미관적작용，제고료조시관주적가고성，증강료조시관주재출사、사정조건하적괄응성。
ball-and-seat has many problems used as the bottom valve of separated injection, separated proifle control and pollu-tion prevent strings, for example solid particle in the upper tube section has nowhere to deposit but stuck valve ball, which will directly resulted in measuring string invalid. In order to overcome the shortcomings, the distributary deposit down hole liquid inlet device is studied, which has facilities such as sideways incoming liquid, diflfuent deposit channels, one-way ball spring centralizer. This device was characterized by the liquid inlet side tube, diflfuent channels deposit and dififcult being sanding in for ball valve. Combined with measuring string, the liquid inlet device can play many roles in many kinds of string, such as the sideways incoming liquid in grip string, inverse well lfushing in the stratiifed injection pipe string and the solid depositing in the bottom proifle controlling string or pollution prevention string. All of these improve the reliability of measure strings and enhance the adaptability of column to conditions of sanding and inclined shafts.