压力打开滑套与投球打开滑套类似,只是内部没有球座。管串中必须安装有压力打开滑套,否则如果是投球滑套的话,球不能泵送到尾管底部,通常压力打开滑套处于关闭状态,一般安装管串尾部第一段处理层处。压力打开滑套是通过内筒截面积差而压力驱动。压力打开滑套可以选择在管柱下到位之后,或者在压裂设备到现场准备压裂时开启。
主要特性
◎ 滑套开启靠滑套内筒截面积差产生的压力差来开启;
◎ 压力等级;
◎ 10,000psi,温度等级300℉;
◎ 具有较大的流道流通面积;
◎ 提供单独的压裂层段而无须球座设计;
◎ 流出面积是管内截面积的两倍,不会产生冲蚀。
PRESSURE ACTUATED FRAC SLEEVE
INTRODUCTION
Pressure Actuated Frac Sleeve actuates the sleeve in the similar way as Ball Actuated Frac Sleeve does, but without ball seat inside. Pressure-actuated sleeve must be installed in the string, otherwise in case it's ball-actuated sleeve, the ball cannot be pumped into the bottom of the liner. Generally, the pressure-actuated sleeve is closed, and it’s installed in the first stage of the frac string .Pressure Actuated Frac Sleeve is driven by the pressure differential on inner bore port area. The Pressure Actuated Frac Sleeve can select to actuate after the string being run and located in certain position or when the fracturing device arrive at the field site and is ready to frac.
FEATURES
◎ Pressure and Temp rating is up to 10,000psi at 350°F;
◎ Port flow area is double the tubing inner area;
◎ Design standard and acid-resistant material can be customized.
◎ Pressure Actuated Frac Sleeve is driven by the pressure differential on inner bore port area;
◎ Pressure Rating: 10,000 psi, Tempature Rating: 300°F;
◎ Large port flow area;
◎ Can provide single frac stage without ball seat design;
◎ Outflow area is double the inner string port area, no erosion will happen.
Note: Other specification products are available.