Perforating gun barrel material and preparation method thereof

A technology for perforating gun barrels and steel pipes, which is applied in the fields of seamless steel pipe materials and their preparation, gun barrel steel pipe materials and their preparation fields, can solve the problems of high cost, large quenching stress, high production difficulty and the like, and achieve reduced sensitivity , The effect of reducing internal stress and eliminating quenching oil

Active Publication Date: 2018-03-27
SHANGHAI UNIV
View PDF8 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of water quenching at a high temperature of 900 °C has a large quenching stress and poor perforation performance of the barrel, which cannot be compared with oil quenched barrels.
[0005] Patent CN201510234477.0 discloses a high-grade steel perforating barrel and forming method, see Table 4, the carbon content is lower, and the Mo content is about 1.0, which is expensive and contains alloy elements such as W, at 880-920 It is very easy to bend after water quenching at

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
  • Perforating gun barrel material and preparation method thereof
  • Perforating gun barrel material and preparation method thereof
  • Perforating gun barrel material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example

[0038] Example 1 to Example 6 of the present invention

[0039] The steel pipe material of the perforating gun described in the embodiment 1-6 of the present invention is prepared by the following method, wherein the mass distribution ratio of the chemical elements of the steel pipe is shown in Table 1. A1-A6 corresponds to the embodiment 1-6 of the present invention, B1-B2 Comparative examples 1-2; Comparative examples 3-4 correspond to the conditions of B1 and B2 under fully quenched conditions.

[0040] Examples 1 to 6 prepared a perforating barrel material, the chemical element mass percentage ratio of the material component is:

[0041] C: 0.25-0.35%; Si: 0.15-0.35%; Mn: 0.4-0.8%; Cr: 0.8-1.2%; Mo: 0.15-0.45%; Al: 0.005-0.05%; Cu: ≤0.15%; Ni: ≤0.2%; V: ≤0.06%; Nb: ≤0.05%; Ti: ≤0.03%; Ca: 0.001-0.0065%; P1, and the quality relationship formula is 0.6

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

No PUM Login to view more

Abstract

The invention discloses a perforating gun barrel material and a preparation method thereof. The perforating gun barrel material comprises, by mass, 0.25%-0.35% of C, 0.15%-0.35% of Si, 0.4%-0.8% of Mn, 0.8%-1.2% of Cr, 0.15%-0.45% of Mo, 0.005%-0.05% of Al, no more than 0.15% of Cu, no more than 0.2% of Ni, no more than 0.06% of V, no more than 0.05% of Nb, no more than 0.03% of Ti, 0.001%-0.0065%of Ca, less than 0.015% of P, less than 0.0065% of S and the balance Fe and inevitable impurities. Ca and S meets the condition that Ca/S is larger than 1, Ceq is larger than 0.6 and smaller than orequal to 0.72, and Ceq=C+Mn/6+(Cr+Mo+V)/5+(Cu+Ni)/15. A perforating gun barrel produced through a water quenching method is excellent in performance, and the production cost is reduced obviously.

Description

technical field [0001] The invention relates to a seamless steel pipe material and a preparation method thereof, in particular to a gun barrel steel pipe material and a preparation method thereof, which are applied in the technical field of perforation completion in petroleum exploration and development system engineering. Background technique [0002] Perforation completion is an extremely important technology in petroleum exploration and development system engineering, and it is one of the important means to improve the recovery of oil and gas wells. The perforating barrel is the main part of the perforating gun. During the perforating blast, the barrel bears a large impact force, and the high-temperature and high-pressure gas blasts the thinnest blind hole on the perforating barrel and shoots it to the steel pipe and In the cement layer, the energy-gathering high-temperature and high-pressure gas penetrates the steel pipe and the cement layer to explode the formation. It ...

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
IPC IPC(8): C22C38/02C22C38/04C22C38/06C22C38/22C22C38/20C22C38/24C22C38/26C22C38/28C22C38/44C22C38/42C22C38/46C22C38/48C22C38/50C21D8/10C21D6/00
CPCC21D6/002C21D6/004C21D6/005C21D6/008C21D8/105C21D2211/005C21D2211/008C22C38/002C22C38/02C22C38/04C22C38/06C22C38/20C22C38/22C22C38/24C22C38/26C22C38/28C22C38/42C22C38/44C22C38/46C22C38/48C22C38/50
Inventor 田青超
Owner SHANGHAI UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products