A kind of manufacturing method of nickel base alloy steel coiled tubing
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A manufacturing method and alloy steel technology, applied in the field of petroleum engineering, can solve the problems of coiled tubing that no one thought of, manufacturing process limitations, and no one proposed, and achieve excellent stress corrosion cracking resistance and improve the effect of salt-alkali corrosion resistance.
Active Publication Date: 2020-05-12
HEBEI HUATONG WIRES & CABLES GRP CO LTD +1
View PDF7 Cites 0 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
There is no precedent for the use of nickel-based corrosion-resistant alloys in the preparation of coiled tubing in the prior art. On the one hand, there is a technical bias in this field, that is, no one in the field has thought that nickel-based corrosion-resistant alloys can be used to prepare coiled tubing; One aspect is the limitation of the manufacturing process, that is, no one in the field has proposed a process that can be used to prepare nickel-based corrosion-resistant alloy coiled tubing
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0032] In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.
[0033] According to the nickel-based alloy steel coiled tubing of the present application, the percentage content of each component is: Ni: 40-45%, Cr: 20-23%, Mo: 2-3%, Cu: 1.8-2.8%, Mn ≤1.0%, Al≤0.2%, S≤0.02%, Ti:0.7-1.0%, C≤0.04%, Si≤0.45%, the rest are Fe and unavoidable impurities.
[0034] Copper and molybdenum are added to the nickel-based alloy steel of the present application, which has acid and alkali metal corrosion resistance in both oxidizing and reducing environments. The high nickel content gives the alloy effective resistance to stress corrosion cracking. Co...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
PUM
Property
Measurement
Unit
size
aaaaa
aaaaa
Login to view more
Abstract
The invention relates to a method for manufacturing a nickel-based alloy steel coiled tubing. The coiled tubing comprises the following components, by percentage composition, of 40-45% of Ni, 20-23% of Cr, 2-3% of Mo, 1.8-2.8% of Cu, less than or equal to 1.0% of Mn, less than or equal to 0.2% of Al, less than or equal to 0.02% of S, 0.7-1.0% of Ti, less than or equal to 0.04% of C, less than or equal to 0.45% of Si and the balance Fe and inevitable impurities. The manufacturing method comprises the following steps that steel strips are welded, the damage is detected, short-disc steel strips are connected to reach the specified meter number, a strip supply device is used for supplying the steel strips, the supplied steel strips are cleaned by a cleaning device, the steel strips pass through a roller pressing device and a pipe forming device, laser welding and heating, finishing and winding are carried out. According to the method, the improvement is made in multiple aspects such as thecomponents and the production process of the steel strips forming the coiled tubing, strip supply equipment and a welding method, so that the manufactured coiled tubing is high in strength, and moreover, the corrosion resistance of the coiled tubing is also improved.
Description
technical field [0001] The invention relates to a method for manufacturing a nickel-based alloy steel coiled tubing, which is suitable for the technical field of petroleum engineering. Background technique [0002] Nickel-based alloys refer to a class of alloys that have comprehensive properties such as high strength and certain oxidation and corrosion resistance at high temperatures of 650-1000 °C. According to the main performance, it is subdivided into nickel-based heat-resistant alloys, nickel-based corrosion-resistant alloys, nickel-based wear-resistant alloys, nickel-based precision alloys and nickel-based shape memory alloys. The main alloy elements of nickel-based corrosion-resistant alloys are copper, chromium, and molybdenum, which have good comprehensive properties and can resist various acid corrosion and stress corrosion. Nickel-based corrosion-resistant alloys are mainly used in the manufacture of various parts for corrosion-resistant environments such as petr...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more