01
O.D. 4-1/2", Upper/Lower Thread Type 3-15/16"-6Acme-2G, Tandem Subs for Perforating Guns
Material
The 4-1/2" O.D. tandem subs incorporate premium-grade heat-treated alloy steel that has been specifically selected based on the superior strength and abusive pressure-resistant capabilities of the steel. This will allow the subs to perform effectively within abusive environments that subject them to elevated temperatures, chemical fluids, and abusive working environments. The alloy steel receives a specialized heat treatment that enhances the strength and wear and fatigue life of the steel.
This strong, durable substance maintains the subs in good working condition during the working life and avoids the onset of failing during critical downhole operation.
Specifications
• Outer Diameter (O.D.): 4-1/2 inches with a tight and firm fit of the perforating system of the gun.
• Thread Type: 3-15/16"-6Acme-2G with a tight and smooth fit that will allow the least chance of thread wear and leakage.
• Material: Premium heat-treated steel of the highest strength and highest corrosion-resisting properties.
• Length: Customizable per individual application needs with the assurance of fitment with multiple perforating gun configurations.
• Pressure Resistance: Engineered with the harshness of typical pressures of deep wells in consideration.
|
Sub O.D. |
Upper Thread Type/Lower Thread Type |
Pressure Rating |
Approx. Weight |
|
|
4-1/2" |
3-15/16"-6Acme-2G |
3-15/16"-6Acme-2G |
25000 psi [172Mpa] |
30.9lb [14kg] |
Production Processes
Constructing the Tandem Sub is a painstaking process:
1. Forging: The high-strength alloy steel is carefully forged into the desired shape, ensuring the material retains its integrity and strength.
2. Precision Machining: The part is traced and thus precision machined per strict standards with the 3-15/16"-6Acme-2G threading perfectly machined matching the rest of the perforating gun assemblies.
3. Heat Treatment: The part is subjected to a specialized heat treatment after machining with the hope of refining its wear and temperature-resistant capabilities and making it suitable for use in the deep well.
4. Thread Cutting and Finishing: The threads are properly cut and smoothed so that they minimize friction and enable easy engagement and disengagement of the part during the assembling process.
5. Quality Control: Each sub undergoes rigorous quality checks, including dimensional inspections and pressure tests, to ensure it meets all required performance standards.
Quality Test & Inspection
Quality at the top line of construction of such Tandem Subs. There is a strict line of tests and checks of each unit:
• Dimensional Checks: The subs are dimension-checked thoroughly so that they match the required dimension so that they fit the thread dimension and fitment tolerances.
• Pressure Testing: The subs are subjected to strict pressure testing to ensure they will withstand the higher pressure typical of the usual downhole environments.
• Material Integrity Tests: The strength and resistance of the alloy steel against corrosion are tested such that it will be able to withstand the harsh environments of the oil and gas wells.
• Thread Inspection: The threads are thoroughly examined for any faults that may influence the operation and strength of the thread and assure a tight, leakage-proof fit.
Key Features
• Durable Alloy Steel Building: Provides superior strength and wear and rust resistance with lasting results.
• Precision 3-15/16"-6Acme-2G Threads: This has a tight and smooth fit that is stable and firm and has a lower probability of operational failures.
• High Pressure and Temperature Resistance: Engineered with the rugged pressures and temperatures of the deep well environment in consideration, it performs exceptionally at withstanding rugged environments.
• Customization Options: Provided in a variety of configurations and lengths to fit the specific application of multiple perforating gun systems.
• Corrosion Resistance: Corrosion-resistant properties of the substance allow the subs to be stable and operational near harsh chemicals and liquids.
Industry Applications
The 4-1/2" tandem subs have a critical application in numerous industries and the oil and gas sector specifically. They are used in:
• Perforating Gun assemblies: Crucial components that provide strong connections among the sections of a perforating gun.
• Well Completion: The subs assist in making stable perforations in the casing that enable free flow and stimulation of the well.
• Hydraulic Fracturing: They play a part in the fracking operation and aid in making the perforating guns perform effectively throughout the fracturing operation.
• Deep-Well Drilling: The subs' strength against unfavorable temperature and pressure environments perfectly fits them for use in deep-well drilling.
Packaging and Storage
The Tandem Subs are properly packed so that they arrive at the final destination in good condition. The subs are sealed in individual wrapping that will protect them against physical and chemical damage and corrosion. The subs should be stored in a temperature-controlled and dry environment to keep them in good condition and extend their shelf life. The subs will be free of any moisture and environment-induced damage if they are properly stored.
Shipment
The subs ship in durable and tamper-evident containers to safeguard them during shipping. We ship the customer shipping information after shipping so that they can track the progress of the shipping. The subs ship with great care during shipping in order to arrive in good working condition and be operational immediately in critical processes.