Coiled tubing is a continuous length of pipe wound on a spool, which is later straightened prior to entering the wellbore. We are professional CT55(CT70,CT80,CT90,CT100,CT110) Continuous Coiled Tubing Coil Tubes supplier from china.
Tiptop offers a range of coiled tubing suitable to the specific demands of subsea and downhole applications. Our coiled tubings are high frequency induction welded while stainless steel products are laser welded to ensure maximum precision and durability.
The use of colied tubing for oil and gas well service operations has increased significantly over the past decades for applications such as drilling, logging, fracturing, cleanouts, chemical injection, ESP installation and so on.
From standard well-workover and velocity/production strings for logging, drilling and special application strings with factory-installed wire-line, capillary tubes to integral tools, Tiptop supplies continuous coiled tubing in lengths suitable for the most challenging downhole environments.
The steel grade and size information covered are as follows:
Type: Conventional coiled tubing(CT)
Advantages: high-strength, excellent fatigue resistance.
Reference material: CT70 CT80 CT90 CT100 CT110
Standard: API Spec 5ST
OD: 1 " ~ 3 1/2" (25.4 mm to 88.9 mm)
Thickness: 0.075 " ~ 0.25" (1.9mm~6.35mm)
Users can choose the required material and steel grade according to the operating conditions. The dimensions can be customized according to API Spec 5ST or user requirements.
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O.D. | inch | 1" | 1.25" | 1.5" | 1.75" | 2" | 2.375" | 2.625″ | 2.875" | 3.25" | 3.5" |
W.T. | |||||||||||
inch | mm | 25.4 | 31.75 | 38.1 | 44.45 | 50.8 | 60.325 | 66.675 | 73.025 | 82.55 | 88.9 |
0.075" | 1.905 | √ | √ |
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0.080" | 2.032 | √ | √ |
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0.083" | 2.108 | √ | √ |
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0.087" | 2.21 | √ | √ | √ |
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0.095" | 2.413 | √ | √ | √ | √ |
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0.102" | 2.591 | √ | √ | √ | √ |
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0.109" | 2.769 | √ | √ | √ | √ | √ | √ |
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0.118" | 2.997 | √ | √ | √ | √ | √ | √ |
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0.125" | 3.175 | √ | √ | √ | √ | √ | √ |
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0.134" | 3.404 | √ | √ | √ | √ | √ | √ | √ | √ |
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0.145" | 3.683 |
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0.156" | 3.962 |
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0.175" | 4.445 |
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0.188" | 4.775 |
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0.204" | 5.182 |
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0.224" | 5.69 |
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0.250" | 6.35 |
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Chemical composition
Chemical composition (%) | ||||||
Material | standard | C | Mn | P | S | Si |
CT70 | API 5ST | 0.16 | 1.20 | 0.025 | 0.005 | 0.50 |
CT80 | 0.16 | 1.20 | 0.020 | 0.005 | 0.50 | |
CT90 | 0.16 | 1.20 | 0.020 | 0.005 | 0.50 | |
CT100 | 0.16 | 1.65 | 0.025 | 0.005 | 0.50 | |
CT110 | 0.16 | 1.65 | 0.025 | 0.005 | 0.50 |
Mechanical properties
Grade | Min. Yield strength | Max. Yield strength | Min. Tensile strength | Max. hardness HRC | |||
psi | Mpa | psi | MPA | psi | Mpa | tube body &weld seam | |
CT70 | 70,000 | (483) | 80,000 | 552 | 80,000 | 552 | 22 |
CT80 | 80,000 | (552) | 90,000 | 620 | 88,000 | 607 | 22 |
CT90 | 90,000 | (620) | 100,000 | 689 | 97,000 | 669 | 22 |
CT100 | 100,000 | (689) |
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| 108,000 | 758 | 28 |
CT110 | 110,000 | (758) |
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| 115,000 | 793 | 30 |