While conducting hydraulic fracturing,the flow rate is required to be controlled to enable the ball-off to block off and uncord the eyelet based on the stimulation process.

• 封堵球分层压裂时,为了使暂堵球按照施工泵注程序对射孔孔眼进行封堵和解封,需要对压裂施工的泵注排量提出要求。在以往的投球分压中,排量的确定带有一定的盲目性。