Kill Manifold

In the event of an increase in wellhead pressure, the kill manifold serves as a critical system for injecting heavy drilling fluid into the well to balance bottom hole pressure, thereby preventing well kicks and blowouts. Additionally, it allows for the direct release of rising wellhead pressure through blowdown lines connected to the kill manifold, helping to reduce bottom hole pressure. In emergency situations, water or fire suppression agents can also be injected into the well using the kill manifold. The check valves installed on the kill manifold are designed to permit only the injection of kill fluid or other necessary fluids into the wellbore, while preventing any backflow, ensuring safe and effective operation during kill procedures or other critical tasks. **1. Application** In case of increased wellhead pressure, the kill manifold provides a means of pumping heavy drilling fluid into the well to maintain bottom hole pressure equilibrium, thus preventing well kicks and blowouts. It also enables the direct release of excess pressure via blowdown lines connected to the kill manifold, reducing bottom hole pressure. Furthermore, it allows the injection of water or fire suppressants into the well through the kill manifold. The check valves on the kill manifold are designed to allow only the forward flow of fluids, preventing backflow and ensuring operational safety. **2. Configuration** The kill manifold consists of check valves, gate valves, pressure gauges, and line pipes. One end of the kill manifold is connected to the drilling spool, while the other end is connected to the pump. Both the kill manifold and choke manifold are designed according to API 16C standards and can be used together. The kill manifold is available in various pressure ratings, including 14MPa, 21MPa, 35MPa, and 70MPa, making it suitable for a wide range of applications. **3. Operating Instructions** (1) The working pressure of all line pipes, gate valves, and check valves must be compatible with that of the BOP stack being used. (2) The kill manifold is not intended for general use as a common line for pouring drilling fluid. **Parts List:** | Item | Component | Qty | Material | |------|------------------|-----|----------| | 1 | Skid Base | 1 | - | | 2 | Union Flange | 2 | 4130 | | 3 | Check Valve | 2 | - | | 4 | Blind Flange | 2 | 4130 | | 5 | Gate Valve | 2 | - | | 6 | Gate Valve | 2 | - | | 7 | Gate Valve | 1 | - | | 8 | Pressure Gauge | 1 | - | | 9 | Needle Valve | 1 | - | | 10 | Companion Flange | 1 | 4130 | | 11 | Five-way Piece | 1 | 4130 | This detailed configuration ensures reliable performance under high-pressure conditions, making the kill manifold an essential component in well control operations. Proper maintenance and adherence to operating instructions are crucial to ensure the system functions correctly when needed most.

Carbon Steel Flux Cored Wires

Carbon Steel Flux Cored Wires:

Application: Carbon steel flux cored wire suitable for shipbuilding, bridge, offshore and general fabrication.

E71T1C Characteristic: Stable Arc, Less Spatter and fume, goodlooking welding bead and slag easy to remove. Good weldablity with good impact value.

Direct current reverse connection (DCEP) welding, the welding wire is connected to the positive electrode.

gory		AWS standard	Chemical compostition of deposited metal(wt%)
			C	Mn	Si	Cr	Ni	Mo	P	S	V	Cu	Fe
Carbon Steel and High Tensile Strength Steel Flux Cored Wire	CO2 Gas Shield	E71T-1C	0.12	1.75	0.9	0.2	0.5	0.3	0.03	0.03	0.08	0.35	-
	Self-shielded	E71T-11	0.04	1.3	0.22	0.02	0.01	0.01	-	-	-	-	-
		E71T-GS	0.035	0.5	0.11	0.01	0.01	0.01	-	-	-	-	-

Carbon steel flux cored wire is a very widely used welding process. It is widely used in the welding of low carbon steel, low alloy steel and other alloy materials in heavy manufacturing, construction, shipbuilding, offshore facilities and other industries.

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