Full bore retrievable circulating valve on shelf
The RTTS circulating valve is a locked-open/locked-closed valve that serves as both a circulating valve and bypass. The clearance between the RTTS packer (or any hookwall packer) and the casing ID is relatively small. To reduce the effect of fluid-swabbing action when the tool is run in or pulled out of the hole, a packer bypass is generally used.
Features :
The RTTS circulating valve is a locked-open/locked-closed valve that serves as both a circulating valve and bypass. The clearance between the RTTS packer (or any hookwall packer) and the casing ID is relatively small. To reduce the effect of fluid-swabbing action when the tool is run in or pulled out of the hole, a packer bypass is generally used.
Features :
The valve can be locked closed when the packer is unset to reverse fluid around the bottom of the packer. The tool's full opening allows tubing-type guns and other wire line equipment to pass
Operation
The full bore retrievable circulating valve is automatically locked in the closed position when the packer is set. During testing and squeezing operations, the lock helps prevent the valve from being pumped open. A straight J-lot in the locked-open position can be used with the straight J-slot (optional) in the packer body. This combination eliminates the need to turn the tubing to close the circulating valve or reset the packer after the tubing has been displaced with cement. The full bore retrievablecirculating valve can be run directly above the packer body or further up the workstring. When placed in the hole, the valve must be in the lockedopen position. The J-slot in the packer-body drag block (or drag sleeve) must also be placed in the unset position. hen the circulating valve is opened to come out of the hole, the tubing is lowered, turned to the right, and picked up.
Specification
Size: 2 3/8",4 1/2 " to 5",51/2"to 6 5/8",7"to 7 5/8",8 5/8" to 13 3/8"
RTTS Circulating valve spare parts(redress kit) in stock
Top coupling, J-Slot-Sleeve, Mandrel, Mandrel Port Section, Lower adapter, O ring, Back up seal.
Specification
Size: 2 3/8",4 1/2 " to 5",51/2"to 6 5/8",7"to 7 5/8",8 5/8" to 13 3/8"
Application: Drill stem testing
Type: locked-open/locked-closed valve
Type: locked-open/locked-closed valve
Service: H2S, CO2, full H2S
Working condition: High pressure high temperature
Working pressure: 10000psi & 15000psi
Working pressure: 10000psi & 15000psi
Standard: NACE MR01-75
Connection:EUE, IF, CAS
Nominal Size/ in. | OD in. | ID in. | Tensile Rating/lb | Burst Rating/psi | Collapse Rating/psi |
2 3/8 | 1.68 | 0.68 | 31,900 | 11,600 | 9,900 |
4 1/2 to 5 | 3.60 (9.14) | 1.80 (4.57) | 85,000 (38 556) | 10,100 | 10,700 |
51/2 to 6 5/8 | 4.18 (10.62) | 1.99 (5.05) | 150,700 (68 358) | 10,000 | 14,200 |
7 to 7 5/8 | 4.87 (12.37) | 2.44 (6.19) | 148,800 (67 496) | 10,000 | 10,100 |
8 5/8 to 13 3/8 | 6.12 (15.54) | 3.00 (7.62) | 311,400 (141 251) | 10,500 | 10,100 |
RTTS Circulating valve spare parts(redress kit) in stock
Top coupling, J-Slot-Sleeve, Mandrel, Mandrel Port Section, Lower adapter, O ring, Back up seal.
RTTS circulating valve seal testing chart
ZZTOP DST tools are exported to Brazil, USA, Colombia, India, Middle East etc, and enjoy the good reputation. we also supply the best technical service including training, instruction on the site and so on, should any drill stem testing tools be of interest to you, contact me freely.
