Unlock instant, AI-driven research and patent intelligence for your innovation.

Hard alloy material, throttle valve for petroleum drilling and manufacturing method of throttle valve

A technology of hard alloys and manufacturing methods, which is applied in the direction of valve devices, mechanical equipment, engine components, etc., and can solve problems such as pit-like non-uniform corrosion, glass fragmentation, hydrogen embrittlement corrosion, etc.

Inactive Publication Date: 2022-01-11
中石化石油工程技术服务有限公司 +2
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, with the popularization of deep wells above 4000m in China and the development of sour gas fields, the common YJ6 and YJ8 cemented carbides on the market have suffered from hydrogen embrittlement corrosion, resistance to high-pressure fluid erosion, obvious pit-like non-uniform corrosion, and fracture, Failure failures such as glass fragmentation

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
  • Hard alloy material, throttle valve for petroleum drilling and manufacturing method of throttle valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] For ease of understanding, the present invention will be further described below in conjunction with the accompanying drawings.

[0023] see figure 1 , the present invention provides a method for manufacturing a choke valve for oil drilling, the spool of the choke valve for oil drilling is made by the process shown in the diagram, specifically comprising the following steps:

[0024] S1, take the following substances by weight percentage: nickel nitride, 0.7-1%; precipitated niobium carbide, 1-1.5%; titanium carbide, 0.04-0.06%; cobalt, 5.7-6.0%; the balance is carbide tungsten. Among them, the particle sizes of nickel nitride, desolvated niobium carbide and titanium carbide are all in the nanoscale, and the particle sizes of cobalt and tungsten carbide are all 0.1-0.2 μm.

[0025] Nickel nitride is nano-scale, and the addition amount is 0.7-1%, which can improve the resistance to H in oil and gas. 2 S corrosion performance, and the addition of niobium carbide is 1 t...

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

PropertyMeasurementUnit
particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention provides a hard alloy material, a throttling valve for petroleum drilling and a manufacturing method of the throttling valve. The hard alloy material is prepared from the following substances in percentage by weight: 0.7%-1% of NiN, 1%-1.5% of NbC, 0.04%-0.06% of TiC, 5.7%-6.0% of Co, the balance is WC, and the particle size of the WC is 0.1-0.2 [mu]m. Ultrafine tungsten carbide added with nickel and niobium elements is adopted as a hard phase, ultrafine grain spherical cobalt powder is adopted as a binding phase, so that the hard alloy material has H2S and CO2 corrosion resistance, high-pressure multi-phase fluid erosion resistance, vibration fracture and glass sheet type fragmentation resistance, and it is ensured that the throttling valve is suitable for high-pressure, high-sulfur-content and high-yield oil gas drilling.

Description

technical field [0001] The invention relates to the technical field of petroleum drilling, in particular to a cemented carbide material, a throttle valve for petroleum drilling and a manufacturing method thereof. Background technique [0002] During oil and natural gas drilling, when dangerous situations such as overflow and kick occur, after the well is shut down with a blowout preventer, it is necessary to perform repeated long-term cycle killing through the choke manifold to deal with the dangerous situation. The working principle of the choke manifold is essentially to use the choke valve to change the flow area of ​​the circulation channel, and then control the passing fluid flow, thereby controlling the pressure in front of the choke valve, indirectly controlling the bottom hole pressure, and re-establishing the bottom hole pressure balance Therefore, the choke manifold is one of the most important equipment of the well control device. [0003] The throttle valve is t...

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
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C22C29/02C22C1/05F16K51/00
CPCC22C29/02C22C29/005C22C1/051F16K51/00
Inventor 杨文冉李玉民韩儒徐源赵晨阳王晓
Owner 中石化石油工程技术服务有限公司