Marine Riser
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Marine Riser
Circlip Type
Composition: Male Connector, Female Connector, O-ring, Circlip, Pipe Body, Fixed Bolt. As seen from the drawing, Circlip is to bear the shear force generated by the joint under the working state and ensure the reliable connection between the internal and external joints. It is the most critical part of the quick Joint, and the difficulty of design and processing.
Disassembly: When the quick Joint is disassembled, by utilizing the top thread on the Joint to stretch the Circlip outward, so that the OD is immersed in the groove of the Box, and the ID is separated from the groove of the Pin, which makes the Joint be taken off.
Easy Installation at Sea: Quick Joint is inserting and automatically locking, mainly relying on the elastic action of the Circlip, to realize the rapid installation and disassembly when lifting and lowering the pipe, omitting the tightening equipment.
High Operating Efficiency: Installation and Disassembly time saved, Drilling Efficiency Improved and Costs Saved.
Threaded Connection
The advantage of multi-thread is that it is fast to make up, and the linear advance per rotation is several times that of an ordinary thread, which greatly reduces the offshore installation time and improves the drilling and production efficiency of the platform.
Advantages of threaded joint:
Good Sealing: because of the use of thread seal and seal ring seal, thread type water riser can achieve a good waterproof effect.
Good rigidity of connection: the threaded connection improves the stiffness of the whole riser, which is suitable for deeper sea area.
Marine riser
Manufacture Process
Joint Thread Processing
Joint Surface Treatment
Matching before Welding
Manual Argon Arc Welding
Automatic Submerged Arc
Welding
Joints X-ray Inspection
Rust Removal before
Coating
Final Product
Marine riser
Downhole Process
Drift Test before Downhole
Float Shoes Prescrew
Float Joint Prescrew
Buckle
Mechanical Tightening
Downhole
Mud Pre-injected
Downhole Finished Mud Circulated
Contact Us
Km 17 ph/aba express way,
Port Harcourt, Rivers State, Nigeria
+2348091334255
knnabara@macans.com.ng
Copyright © 2025 Macans
All rights reserved
Contact Us
Km 17 ph/aba express way,
Port Harcourt, Rivers State, Nigeria
+2348091334255
knnabara@macans.com.ng
Copyright © 2025 Macans
All rights reserved
Circlip Type
Composition: Male Connector, Female Connector, O-ring, Circlip, Pipe Body, Fixed Bolt. As seen from the drawing, Circlip is to bear the shear force generated by the joint under the working state and ensure the reliable connection between the internal and external joints. It is the most critical part of the quick Joint, and the difficulty of design and processing.
Disassembly: When the quick Joint is disassembled, by utilizing the top thread on the Joint to stretch the Circlip outward, so that the OD is immersed in the groove of the Box, and the ID is separated from the groove of the Pin, which makes the Joint be taken off.
Easy Installation at Sea: Quick Joint is inserting and automatically locking, mainly relying on the elastic action of the Circlip, to realize the rapid installation and disassembly when lifting and lowering the pipe, omitting the tightening equipment.
High Operating Efficiency: Installation and Disassembly time saved, Drilling Efficiency Improved and Costs Saved.
Threaded Connection
The advantage of multi-thread is that it is fast to make up, and the linear advance per rotation is several times that of an ordinary thread, which greatly reduces the offshore installation time and improves the drilling and production efficiency of the platform.
Advantages of threaded joint:
Good Sealing: because of the use of thread seal and seal ring seal, thread type water riser can achieve a good waterproof effect.
Good rigidity of connection: the threaded connection improves the stiffness of the whole riser, which is suitable for deeper sea area.
Marine riser
Manufacture Process
Joint Thread Processing
Joint Surface Treatment
Matching before Welding
Manual Argon Arc Welding
Automatic Submerged Arc Welding
Joints X-ray Inspection
Rust Removal before Coating
Final Product
Marine riser
Downhole Process
Drift Test before Downhole
Float Shoes Prescrew
Float Joint Prescrew
Buckle
Mechanical Tightening
Downhole
Mud Pre-injected
Downhole Finished Mud Circulated
Contact Us
Km 17 ph/aba express way,
Port Harcourt, Rivers State, Nigeria
+2348091334255
knnabara@macans.com.ng
Copyright © 2025 Macans
All rights reserved