Audited Supplier
1.Application
Choke manifold is necessary device to control the well kick successfully and execute the pressure control technology on oil/gas well in the course of drilling, as it is, the device is adopted to execute new drilling-well's technique of balance pressure, which can avoid pollution of oil-layer, improve the speed of drilling and control blowout effectively. One end of the device connects with the side flange of BOP spool. When BOP closes, it can control the finite pressure from casing by adjusting the choke valve's opening, so balanced drilling can work under minimum pressure-difference.
2. Configuration
Choke manifold consists of choke valves, gate valves, line pipes, fittings, pressure gauges and other components.
3. Working Principles
When the pressure inside the well rises, opening/closing the choke valves (including manual chokes, hydraulic chokes and positive chokes) on the choke manifold can allow the release of the fluid inside the well so as to control casing pressure, which can be directly blown out through the gate valve if the casing pressure is quite high.
4. Pressure Ratings
It is available in pressure ratings of 14MPa, 21MPa, 35MPa, 70MPa and 105MPa, and also can be available upon customer request.
5. Operating Instructions
(1) The working pressure of all components on the choke manifold shall be compatible with that of the BOP stack used.
(2) The choke manifold shall be installed at the place where the operator can reach it easily. The pressure test must be performed prior to installation and the seat test pressure shall be equal to the rated working pressure.
(3) The line pipe shall be level and straight as much as it could. In case of the turn of the line pipe, the 120 degree steel bent pipe shall be used. The bore of the line pipe shall be large enough.
(4) The pressure gauge must be installed.
(5) In winter, the choke manifold can work under a low temperature condition.
| Pressure | 35MPa(5000psi) | 70MPa(10000psi) | 105MPa(15000psi) |
| Color | Blue | Yellow | Red |
| Model | JG/S52-35 | JG/S78-70 | JG/S78-105 |
| Design Pressure | 35MPa | 70MPa | 105MPa |
| Weight | 2530kg(5578lb) | 3580kg(7892.5lb) | 4630kg(10260lb) |
| Dimension(L×W×H) | 1802×1339×680mm | 2516×1824×799mm | 3270×2371×1038.7mm |
| Material Level | EE | EE | EE |
| Product specification level | PRL3 | PRL3 | PRL3 |
| Working Temperature | PU(-29ºC~121ºC) | PU(-29ºC~121ºC) | PU(-29ºC~121ºC) |
| Product performance level | PR1 | PR1 | PR1 |
| Nozzle | Fixed and adjustable nozzle | Fixed and adjustable nozzle | Fixed and adjustable nozzle |
| Characteristics | Five gate design | Five gate design | Five gate design |
| work medium | Mud,oil and drilling fluid | Mud,oil and drilling fluid | Mud,oil and drilling fluid |
| Connection type | Flange | Flange | Flange |
Xi′an BOBAN Oil Tools Co., Ltd. Make & Supply a full line of equipment for O& G, horizontal directional drilling (HDD), micro-tunnelling, pipe jacking, etc, In O& G section, we can supply drilling rig component, downhole drilling tools, fishing tools, tubular handling tools, well control equipments, drilling fluid mixing & Recycling system, solid controling equipments and other relevant oiltools,
All our products are API certified, and we are also authorized by ISO: 9001-2000. With advanced production facilities, rigorous quality management, and the joint efforts of our experting staff, Boban has been qualified vendor for many renowned companies in Italy, Germany, Poland, UAE, Kuwait, Egypt, & South East Asia, etc since its establishment in 2018. And obtained a good reputation among the offshore customers as well as other industrial clients.
With our reasonnal prices, quick reaction, high quality products and deliver anywhere on time as well as superior service, Boban has stablished good cooperation relationship with many well-known customers in the world, and also wish to have the chance to work with more and more customers from all over the world! 
Pre-Sales Service After-Sales Service
* Transaction Level Five Stars * Supplier Service Service Five Stars
* Response Rate 86.5% * On-time Shipment Five Stars
* Response Time<12h * Product Quality Five Stars
