7in ExtremeGrip Casing: 10.36mm WT, Fast Ship
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 m.t.
- Supply Capability:
- 1000 m.t./month
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Specification
7" CementLock™ Production Casing
Cement Bond Booster: Diamond-pattern surface increases bonding strength by 40%
Design Highlights:
External Grooves: 1.2mm depth spiral pattern
Centralizer Slots: Pre-cut every 2.5m
Easy Cutting: Laser-marked cut points
Driller's Choice:
Oklahoma operators report 50% reduction in cement channeling issues. The grooves help maintain 360° cement coverage in deviated wells.
Parameters:
Weight: 29.0kg/m
Drift Diameter: 157.1mm
Thread Type: API Short Round
Help: Free cementing best practices guide + 24/7 engineering support
Petroleum Casing Product Information
1. Product Overview
J55 Steel Deep Well Casing, P110 High-Grade Drilling Casing
petroleum casing is strictly manufactured in compliance with API 5CT standards, covering mainstream steel grades such as J55, N80, and P110. It is suitable for wellbore reinforcement and formation isolation in onshore oilfields, offshore platforms, and complex geological environments, ensuring lifecycle safety of oil and gas wells.
2. Technical Specifications
Size Range:
Outer diameter 114.3 mm (4.5") to 508 mm (20"), wall thickness 6.2-25.4 mm, tolerances conform to API 5CT standards (outer diameter ±0.5%, wall thickness ±10%).Mechanical Properties:
J55 Grade: Yield strength ≥379 MPa, tensile strength ≥517 MPa;
P110 Grade: Yield strength ≥758 MPa, tensile strength ≥965 MPa;
Collapse resistance: N80 Grade ≥80 MPa, P110 Grade ≥138 MPa (tested per ASTM A370).
Thread Performance:
API round thread (BTC) sealing pressure ≥20 MPa;
Premium connections (e.g., BGT2) helium leakage rate ≤1×10⁻⁶ cm³/s (tested per ISO 13679 CAL IV).
3. Chemical Composition (Example: L80 Grade)
| Content | 0.25% | 1.20% | 0.45% | 0.50% | 0.25% | 0.020% | 0.010% |
| Note: Cr-Mo alloy design enhances H₂S corrosion resistance (H₂S partial pressure ≤0.3 kPa). |
4. Application Scenarios
High-Temperature & High-Pressure Wells:
L80-13Cr material withstands 180°C and CO₂ partial pressure ≤1 MPa (per NORSOK M-001).Shale Gas Horizontal Wells:
TP140TT high-collapse casing with internal pressure resistance ≥105 MPa, compatible with multi-stage fracturing.Deepwater Offshore Wells:
9-5/8" casing passes 30 MPa external pressure test, suitable for 3,000-meter water depth.
5. Production Process
Material Smelting:
Electric Arc Furnace (EAF) + LF refining, sulfur/phosphorus ≤0.015%;
Continuous casting billet Φ180-400 mm, central segregation ≤Class C 1.0.Hot Rolling:
Three-roll retained mandrel mill, wall thickness uniformity ≤5%;
Online spray cooling, final rolling temperature 900±20°C.Heat Treatment:
Quenching (920°C water cooling) + Tempering (620°C air cooling), hardness 22-32 HRC;
Sour-service pipes use HWQ process, grain size ≥ASTM 7.Quality Inspection:
100% ultrasonic testing (UT) for longitudinal defects (sensitivity Φ1.6 mm flat-bottom hole);
Full-length hydrostatic test (50-100 MPa, holding ≥10 seconds);
Drift test with API drift mandrel (100% pass rate).
6. Case Studies
Middle East Oilfield Project:
Delivered 13-3/8" P110 casing for 4,500-meter well depth, collapse resistance 120 MPa.
7" TP140TT casing supports 30-stage fracturing, boosting single-well output by 25%.
Key Features
J55/P110 Casing: High-strength, corrosion-resistant, compliant with API 5CT.
TP140TT Grade: Optimized for shale gas fracturing with extreme pressure resistance.
Deepwater Compliance: Certified for 3,000-meter offshore operations.
- Q: How do steel pipes handle extreme temperatures?
- Steel pipes can handle extreme temperatures due to their high strength and thermal stability. The properties of steel, such as its excellent heat resistance and low thermal expansion, allow it to withstand both high and low temperatures without significant deformation or structural damage. Additionally, the use of specialized coatings and insulation can further enhance the heat resistance of steel pipes, making them suitable for a wide range of applications in extreme temperature environments.
- Q: How are steel pipes protected against mechanical damage during transportation?
- Steel pipes are protected against mechanical damage during transportation through various methods such as using protective coatings, wrapping them with foam or other cushioning materials, securing them with straps or bands, and using appropriate packaging techniques to minimize impact and vibration.
- Q: How to calculate the maximum bending stress of steel pipe? Is there a list of the maximum flexural normal stresses for steel pipes of different materials and diameters?
- The maximum flexural normal stress is calculated as: Sigma =M/ (gamma x*Wnx).Of which: M is the maximum bending moment of the steel tube;Gamma X - the plastic development coefficient of the cross section; for the cross section of the steel tube, 1.15,
- Q: How are steel pipes used in the manufacturing of HVAC systems?
- Steel pipes are commonly used in the manufacturing of HVAC systems for various purposes. They are primarily used for transporting fluids such as water, refrigerants, and gases throughout the system. Steel pipes provide durability and strength, ensuring the safe and efficient transfer of these substances. Additionally, steel pipes are often used for structural support, acting as a framework for the HVAC system. Overall, steel pipes play a crucial role in the manufacturing of HVAC systems by facilitating fluid transportation and providing structural stability.
- Q: How are steel pipes used in sewage treatment plants?
- Steel pipes are commonly used in sewage treatment plants to transport wastewater, sludge, and other fluids throughout the facility. They provide a durable and corrosion-resistant solution for the harsh environments found in these plants. Steel pipes are used for various purposes, such as conveying raw sewage, distributing treated water, and carrying sludge for disposal or further processing.
- Q: How do you calculate the stress in a steel pipe?
- To calculate the stress in a steel pipe, you need to consider the material properties of the steel and the external forces acting on the pipe. The stress in a pipe is typically calculated using the formula: Stress = Force / Area First, you need to determine the force acting on the pipe. This could be due to external loads such as pressure, weight, or mechanical forces. You can calculate the force by multiplying the pressure or weight by the surface area on which it acts. For example, if the pipe is subjected to an internal pressure, you can calculate the force using the formula: Force = Pressure x Area Next, you need to determine the cross-sectional area of the pipe. The cross-sectional area of a circular pipe can be calculated using the formula: Area = π x (Diameter / 2)^2 Once you have determined the force and the area, you can calculate the stress by dividing the force by the area. This will give you the stress value in units such as pounds per square inch (psi) or newtons per square meter (Pa). It is important to note that the stress calculation assumes that the pipe is in a state of equilibrium and that the material properties of the steel are known. The material properties, such as yield strength and ultimate tensile strength, are used to ensure that the stress calculated does not exceed the maximum capacity of the steel.
- Q: What are the different types of gaskets used with steel pipes?
- There are several types of gaskets commonly used with steel pipes, including spiral wound, ring joint, and flat gaskets. Spiral wound gaskets are made by winding a metal strip and a filler material together, providing excellent sealing properties. Ring joint gaskets are typically used in high-pressure applications and have a metallic ring shape to ensure a tight seal. Flat gaskets, on the other hand, are simple, flat pieces of material, often made from rubber or graphite, and are used for low-pressure applications.
- Q: The outer circle of a seamless steel pipe 50 head into the outer circle of the 40 to close
- According to the metal processing performance, pipe size, quality requirements, as well as investment and benefits to choose different processing methods and corresponding auxiliary processes. The basic process of cold rolling of cold drawn pipe are: (1) tube feeding, the pipe material for hot-rolled finished or semi-finished tube, pipe extrusion pipe and welded pipe; (2) pipe material preparation, including inspection, bundling, pickling, cleaning, washing, drying, neutralization, grease and so on; (3) cold processing (cold or cold); (4) finished finishing finished including heat treatment, straightening, sampling, end cutting, inspection (manual inspection and various testing), pressure test, oiling, packaging and warehousing etc.. Different products are refined and the content varies.
- Q: What is the difference between black steel pipe and galvanized steel pipe?
- The main difference between black steel pipe and galvanized steel pipe lies in their coating. Black steel pipe is untreated and has a dark, matte appearance, while galvanized steel pipe is coated with a layer of zinc to prevent rusting and has a silver, shiny appearance. This coating makes galvanized steel pipes more durable and suitable for outdoor use, while black steel pipes are commonly used for indoor plumbing and gas lines.
- Q: How are steel pipes used in the transportation of liquids and gases?
- Due to their durability, strength, and resistance to corrosion, steel pipes find wide applications in the transportation of liquids and gases. Various industries such as oil and gas, water supply, and chemical processing commonly employ them. For the transportation of liquids, steel pipes serve as conduits for crude oil, refined petroleum products, water, and other fluids. These pipes are designed to withstand high pressure and maintain the integrity of the liquid being transported. The smooth inner surface of steel pipes minimizes friction, enabling efficient flow and reduced energy consumption. Moreover, the strength of steel pipes ensures that they can support the weight of the liquid without deformation or failure. In gas transportation, steel pipes are indispensable for the safe conveyance of natural gas, propane, and other compressed gases over long distances. These pipes are engineered to endure high pressures and extreme temperatures. They are also designed to prevent leakage, which is of utmost importance when dealing with flammable or toxic gases. The strength and durability of steel pipes make them ideal for withstanding the stress and strain that may occur during gas transportation. Additionally, steel pipes are frequently utilized in the construction of pipelines for long-distance transportation of liquids and gases. These pipelines can span hundreds or even thousands of kilometers, and steel pipes are the preferred choice due to their high strength and long-term reliability. They can bear the weight of the pipe and the substance being transported, as well as external forces such as soil pressure and temperature fluctuations. In summary, steel pipes play a vital role in the transportation of liquids and gases. Their durability, strength, and resistance to corrosion make them the preferred choice for conveying various substances over long distances. Whether it is for oil and gas, water supply, or chemical processing, steel pipes ensure the safe and efficient transportation of fluids and gases, contributing to the functioning of various industries and economies worldwide.
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7in ExtremeGrip Casing: 10.36mm WT, Fast Ship
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 m.t.
- Supply Capability:
- 1000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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