16C High Pressure Choke & Kill Manifold - Optimal Performance
Product Description
Choke and Kill Manifold is a core supporting system matched with BOP wellhead equipment, serving as the key safety barrier for well pressure control in oil and gas field operations. Different from single-function well control manifolds, this integrated equipment consists of two mutually independent and non-interfering pipeline systems: choke manifold and kill manifold, realizing bidirectional wellbore pressure regulation and fluid control.
The kill manifold system is dedicated to high-pressure fluid injection. It injects weighted drilling mud and pressure-stabilizing medium into the wellbore to increase bottom hole pressure, balance formation pressure and curb continuous overflow of formation fluid. Equipped with professional anti-backflow check valves, the system thoroughly avoids high-pressure well fluid backflow, effectively protecting downstream pump equipment and construction safety.
The choke manifold system undertakes controlled pressure release and fluid discharge work. Adopting a dual-valve standby design with primary and standby adjustable choke valves, it can precisely adjust pipeline throttling pressure, slowly release wellbore pressure and discharge overflow fluid. This stepless pressure regulation mode avoids sudden pressure fluctuations and ensures stable and controllable well control operation.
The whole equipment adopts integral skid-mounted modular assembly, with all high-pressure forged pipelines, API 6A standard flat gate valves, precision choke valves, pressure gauges and buffer devices pre-installed. The main body is made of high-strength alloy steel via integral forging process, with no welding seams on the flow channel, featuring high pressure resistance, erosion resistance and durable sealing performance. NACE MR0175 anti-sulfur corrosion treatment is optional to adapt to harsh working conditions of hydrogen sulfide-containing sour gas wells.
Supporting dual operation modes of on-site manual adjustment and remote hydraulic control, the manifold meets the safety operation requirements of different construction scenarios. All products undergo strict factory hydrostatic pressure test, air tightness test and fatigue performance test in full compliance with API 16C standards, ensuring stable and reliable long-term operation in complex and harsh oilfield environments.
Product Features
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Integrated Dual-functional Design – Combines independent throttling pressure relief and pressure injection systems in one skid unit, realizing one-stop wellbore pressure control and solving dual demands of well pressure stabilization and overflow discharge.
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Isolated Dual-channel Safety Structure – The inlet kill pipeline and outlet choke pipeline are completely isolated without cross interference, avoiding fluid turbulence and pressure mutual influence, greatly improving overall operation stability.
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Professional Anti-backflow Protection – The kill pipeline is equipped with high-precision check valves, which can effectively block high-pressure well fluid backflow, protect supporting drilling pump units, and eliminate construction safety hazards.
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Redundant Dual-valve Safety Configuration – Adopts main and standby dual choke valve setup. When the main valve is worn or failed by high-speed scouring fluid, the standby valve can be switched instantly to ensure uninterrupted well control operation.
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Integral Forging Anti-erosion Structure – The overall pipeline adopts one-piece forging molding without welding gaps. The smooth inner wall and high-hardness flow channel effectively resist scouring of sand-containing fracturing fluid, extending service life.
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Dual Safety Operation Modes – Flexible switching of manual on-site operation and hydraulic remote control. Remote operation keeps operators away from high-pressure dangerous wellhead areas, meeting high-standard safety construction requirements.
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Adaptable Anti-sulfur Customization – Supports NACE MR0175 standard anti-hydrogen sulfur treatment, which can adapt to severe corrosive working conditions of sour oil and gas wells, expanding product application scope.
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Modular Skid-mounted Installation – Pre-assembled and pre-tested in factory, with integrated skid support. It features simple transportation, convenient hoisting and fast on-site installation, saving construction time and cost.
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Full Standard Compliance & Reliability – Manufactured and tested strictly in accordance with API 16C and API 6A industry standards, with multiple pressure and sealing tests to ensure zero leakage and stable performance in long-term field operation.
Product Specifications
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Item
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Specification
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Execution Standard
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API Spec 16C, API 6A
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Rated Working Pressure
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5000PSI, 10000PSI, 15000PSI
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Main Body Material
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4130 / 42CrMo Alloy Steel (NACE MR0175 anti-sulfur optional)
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Choke Valve Type
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Manual Adjustable Choke, Hydraulic Adjustable Choke
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Kill Line Configuration
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Built-in anti-backflow check valve for safety protection
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Matching Valve Type
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Full bore flat gate valve
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Connection Mode
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Flange, Studded Connection, Wing Union
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Structural Form
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Integrated skid-mounted / Split modular type
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Operation Control Mode
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Local manual control / Remote hydraulic control
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Applicable Medium
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Drilling mud, crude oil, natural gas, sand-containing fracturing fluid
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Application Scenarios
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Onshore drilling, offshore platform, well testing, hydraulic fracturing, workover operation
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