公开(公告)号：EP2776664A1

公开(公告)日：2014-09-17

申请号：EP12848619.8

申请日：2012-11-07

申请人： Oklahoma Safety Equipment Company, Inc.

发明人： BANKS, David Wayne ,  EVANS, Robert Frank ,  STOCKSTILL, Doyle G.

IPC分类号： E21B43/247

CPC分类号： E21B43/26 ,  E21B34/063 ,  F16K17/1606 ,  Y10T137/1692

摘要： A pressure relief device and a hydraulic fracturing system having a pressure relief device are provided. In one form, the pressure relief device has a valve body with a linearly extending throughbore between the inlet and outlet thereof. A rupture disc is secured in the valve body so that a frangible dome wall portion thereof has a reverse-acting orientation in the valve body bore. The hydraulic fracturing system includes a pump and a delivery line that receives pressurized fracturing fluid from the pump and delivers it to a well. A pressure relief device is installed along the delivery line. A sensor detects fluid flow downstream of the pressure relief device which allows the pump to be shut down when the downstream fluid flow is detected. The pressure relief device can have a body with a domed rupture disc and the sensor therein.