Sucker Rod BOP (YGF-7)

Application and Features:
YGF-7 sucker rod BOP is used for roundtrip operation of the sucker rod in the oilfield, in order to prevent blowout. Our BOP has the features that small in size, light weight, easy to operate, reliable seal performance. The product is designed and machined strictly in accordance with the standard requirements of GB/T20174-2006 BOP and SY5029-83 sucker rod and connector.

Structure and Working Principle:
The product is composed of these parts: Shell, rubber core, , housing, seal ring, compression ring of the RAM block, , handle, screw rod, compression joint, "O" seal ring, trust ball bearing, and so on. Pipe RAM block is equipped with oil resistant rubber. In the roundtrip operation of the sucker rod, the rubber core is used for preventing blowout and kick. Method of operating the BOP: Rapidly clockwise rotate the screw rod at the both end of the BOP, so as to make the two pipe RAM block tightly hold the sucker rod until the annular space between the sucker rod and the tubing is totally sealed.

Operating Rules
1. Installation
Before using the BOP, check whether the cover compression joint of the screw rod is compressed or not, and the rotary of the screw rod is flexible or not. Whether there is any damage on the rubber part of the RAM block. If any necessary, tight the compression joint (Attn: Only tight the cover compression joint, the normal seal of the upper layer of the RAM block can be achieved) or replace the rubber core of the RAM block and fit well, take down the polished rod stuffing box, and install the BOP in the stuffing box.

2. Normal Roundtrip Operation Guide
When roundtrip operation, make the RAM block of the BOP fully open. Method of operation: Anti-clockwise rotate the screw rod, make the two shears be away with each other until the RAM block fully open. When the roundtrip operation of the sucker rod, collision should be avoid when pulling up to the connector, so as not to crash the BOP.

3. Turn off the BOP
If the blowout or kick happens in the workover operation, the operation should be stopped in time, at the same time, turn off the BOP. Method of turn off the BOP: Simultaneously rapidly rotate screw rod clockwise at both ends until the pipe RAM block holds the sucker rod, I. E. Seal the gushing fluid in the well. After the BOP is closed, keep the extended length of the two RAM block equal, in order to avoid the seal become invalid because of one of the RAM block extents too much.

4. Replace the rubber core
After using the pipe RAM block for some time, it needs to be replaced when the rubber part is aging or caught casting because of the corrosion, friction and other factors. When replacing, remove BOP from the wellhead, dismount the compression joint and rotate the screw rod to make RAM block fully extended and take out of the old RAM block, and then, fit on the rubber core, seal the surface with management grease spread evenly in each layer. After completing the process of replacing the RAM block, be sure to tighten the compression joint.