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O.D. 7", Upper/Lower Thread Type 6-1/4"-6Acme-2G, Tandem Subs for Perforating Guns

The O.D. 7" Type 6-1/4"-6Acme-2G Upper/Lower Thread Tandem Subs are subs that are specially developed and built specifically for use within perforating gun assemblies. The subs interface a variety of sections of the set of the perforating gun and provide firm and durable and dependable connections. Specially developed with the harsh environments of the highest temperature and highest pressure of the deeper oil and gas wells in consideration, the 7" Tandem Subs are specially developed and built with the harsh environments in consideration.
By ensuring a stable and homogeneous interface among the perforating sections of the gun, tandem subs allow smooth perforating with space for the greatest recovery of oils and the management of fluids. Their heavy build and rigorous threading ensure smooth operation and safety during the perforating operation.

    Material

    These Tandem Subs are made of high-strength heat-treated alloy steel that has been made stronger and durable. The material has been used because it has superior wear and corrosion resistance and will keep the subs durable enough to last in harsh downhole environments. The cutting-edge heat treatment also increases the strength of the subs against harsh temperatures and pressures that dominate the environment of extracting oil and natural gas. This ensures the material perfectly matches the application of the perforating gun system with a demand for superior reliability and longevity.

    Specifications

    • Outer Diameter (O.D.): 7 inches with a stable and firm interface that will accommodate larger perforating assemblies.
    • Thread Type: 6-1-4"-6Acme-2G with tight fit between sections of a perforating gun
    • Material: High-strength heat-treated steel alloy optimized for use in harsh environments.
    • Length: Customizable per each required perforating gun.
    • Pressure and temperature rating: Sufficient enough to support the higher temperature and higher pressure environments typically associated with drilling and completing deep wells.

    Sub O.D.

    Upper Thread Type/Lower Thread Type

    Pressure Rating

    Approx. Weight

    7"

    6-1/4"-6Acme-2G

    6-1/4"-6Acme-2G

    25000 psi [172Mpa]

    77.2lb [35kg]

    Production Processes

    The tandem subs' manufacturing has a set of critical processes that ensures world-class top-quality parts:
    1. Forging: The raw alloy steel is forged into the desired shape, ensuring the material maintains its strength and structural integrity.
    2. Machining: The subs are machined with great precision to design the 6-1/4"-6Acme-2G threads that fit perfectly and wear minimal during application.
    3. Heat Treatment: The forged subs undergo heat treatment to enhance their resistance to wear, corrosion, and extreme temperatures.
    4. Thread Cutting and Finishing: The threads are accurately ground and smooth-cut in order to enable smooth operation and good connections with the remaining perforating gun assemblies.
    5. Inspection: Each of the subs has rigorous quality checks including visual checks, dimension checks and pressure tests in line with rigorous standards of performance.
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    Quality Test & Inspection

    Each O.D. 7" Tandem Sub goes through several layers of Quality Control:
    • Dimensional Accuracy: The subs are subjected to strict standards of testing so that they will be within tight fit and thread tolerances.
    • Pressure and Durability Tests: The unit goes through intense tests of pressure to ensure that it has the strength of surviving the harsh operational environments of the downhole environment.
    • Material Strength Tests: The steel alloy goes through tests that will allow it to withstand fatigue and corrosion and yet be strong at higher temperatures and pressures.
    • Thread Integrity Testing: The thread profiles are closely scrutinized with respect to wear resistance and consistency to identify whether they provide a tight and leakage-proof joint during the perforation processes.

    Key Features

    • High-Strength Alloy Steel Design: Provides strength and stability in harsh environments of the oil and gas sector.
    • Precise 6-1/4"-6Acme-2G Thread: Forms a tight and smooth joint among perforating gun sections with a low chance of failure.
    • Corrosion and Wear Resistance: Its properties perfectly suit it for application in aggressive and pressurized environments.
    • Customizable Lengths: Provided in a variety of lengths that fit multiple configurations of perforating guns and specific application needs.
    • Enhanced Heat and Pressure Resistance: Engineered to withstand harsh downhole environments with long-lasting performance.

    Industry Applications

    The O.D. 7" Tandem Subs are used primarily in the oil and gas industry, specifically in perforating gun systems for well completion and hydraulic fracturing. They are essential in:
    • Perforating Gun assemblies: Used in the assembling of perforating gun sections, enabling strong and effective perforation of the well casings.
    • Well Stimulation: Essential for providing a good flow of fluids in the production wells through a firm interface of the perforating gun tools.
    • High-Pressure Well Operations: Well-suited for application in the drilling of deep wells, wherein higher temperatures and pressures necessitate higher-quality component operation.

    Packaging and Storage

    The subs are packed tight in a safeguarding substance so that they reach the top working state. They also get properly handled during shipping. They should be placed in a temperature-controlled environment that is free of dampness so that they don't get any external damage. The subs also get marked with clear identification and marks of handling.

    Shipment

    Each tandem sub O.D. 7" comes with heavy duty shipping that prevents shipping mishandling and shipping damage. The customer has smooth follow-through of shipping status with receipt of shipping and shipping track. The pieces ship installation-ready in the perforating gun assemblies with minimal manipulation with instant application.

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