By-Pass Valve
During drilling operation, when a well kick takes place and bit bore is blocked, the by-pass valve can be opened to allow fluid circulation and well killing. Before drilling in a gas formation, the By-Pass valve shall be located near or on the bit.Premium Factory Price by-Pass Valve for Oilfield
When well kick take place and pump pressure is too high or blocked, the following steps can be taken to open the By-Pass valve :
Discharge Kelly and drop in a steel ball (or a nylon ball) which is carried by tool;
Connect with Kelly;
Put ball into retainer by pump circulation;
When fluid is closed, the shear pin can be sheared off by adding 0.5~1.5MPa higher pump pressure than original pump pressure;
After pin is sheared, the seal sleeve move down to open the discharge hole and pump pressure come to drop down , then normal circulation and well killing operation can be started.
When ordering please specify:
O.D. of body;
Connection;
Pump pressure required to shear off pin (per customer requirement)
Applications:
Shale gas wellheads, high-pressure BOP systems, downhole tool control
Contact for Technical Support:
LAURA Manager
By-Pass Valve
During drilling operation, when a well kick takes place and bit bore is blocked, the by-pass valve can be opened to allow fluid circulation and well killing. Before drilling in a gas formation, the By-Pass valve shall be located near or on the bit.Premium Factory Price by-Pass Valve for Oilfield
When well kick take place and pump pressure is too high or blocked, the following steps can be taken to open the By-Pass valve :
Discharge Kelly and drop in a steel ball (or a nylon ball) which is carried by tool;
Connect with Kelly;
Put ball into retainer by pump circulation;
When fluid is closed, the shear pin can be sheared off by adding 0.5~1.5MPa higher pump pressure than original pump pressure;
After pin is sheared, the seal sleeve move down to open the discharge hole and pump pressure come to drop down , then normal circulation and well killing operation can be started.
When ordering please specify:
O.D. of body;
Connection;
Pump pressure required to shear off pin (per customer requirement)
Applications:
Shale gas wellheads, high-pressure BOP systems, downhole tool control
Contact for Technical Support:
LAURA Manager
FAQ for Oilfield Machinery Products
Q1:Do your products comply with API/ISO international standards?
Answer: Yes, our products fully comply with API Spec 7-1, API 6A, and are certified with ISO 9001.
Q2:How do we ensure quality?
Answer:Production samples are always made before mass production.
A final inspection is always conducted before shipment.
Q3:: Are you the manufacturer? What petroleum machinery products do you mainly offer?
Answer: Yes, we are a professional manufacturer integrating R&D, production and export with our own production base. Our main products include:
Fishing Tools (e.g., overshots, fishing spears, milling shoes
Drilling Tools (e.g., drill pipes, stabilizers, reamers)
Valves (e.g., gate valves, check valves, safety valves)
Other downhole equipment, etc.
Q4:What is the warranty period? How to claim it?
Answer: 12-month warranty. Provide the serial number and fault description for a response within 48 hours.
Q5:Do you provide technical training or on-site support?
Answer: Free remote training is available. On-site support costs are negotiable.
Q6: What is the lead time for delivery?
Answer: 30 days for standard products; 60-90 days for customized orders (subject to complexity).
Q7: What shipping methods do you offer? How to track orders?
Answer: Sea express shipping available. Tracking number and link provided after shipment.
Q8: How do you package the products to prevent rust during sea shipping?**
Answer:Packaging includes anti-rust oil, vacuum sealing, wooden crates, and desiccants.*
Q9:Do you accept customized orders?
Answer: OEM is accepted. Submit detailed drawings or specifications for a quote.
Q10:How to get your latest product catalog?For any further detailed inquiries, please feel free to contact us.
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