CN101705793A - Aluminum alloy drill rod end structure and process for upsetting same - Google Patents
Aluminum alloy drill rod end structure and process for upsetting same Download PDFInfo
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- CN101705793A CN101705793A CN200910222390A CN200910222390A CN101705793A CN 101705793 A CN101705793 A CN 101705793A CN 200910222390 A CN200910222390 A CN 200910222390A CN 200910222390 A CN200910222390 A CN 200910222390A CN 101705793 A CN101705793 A CN 101705793A
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- drill rod
- aluminum alloy
- rod end
- end structure
- upsetting
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Abstract
The invention aims to provide an aluminum alloy drill rod end structure and a process for upsetting the same, which not only can reduce the weight of the drill rod and lower the requirement on bearing force of drilling equipment, but also can reduce energy consumption of a lifting procedure, and lower pressing force of the drill rod on the wall of a drilling well. Two ends of the aluminum alloy drill rod end structure have greater thickness than that of the other parts; and to reduce self structural stress, the internal and the external surfaces of two ends of the drill rod adopt oblique surfaces which are transitionally upset gradually, and two ends of the drill rod are subjected to thread processing. According to the invention, the drill rod end of a high strength drill rod body is upset, the pipe body is subjected to solid melt and aging treatment, and two ends of the drill rod are subjected to thread processing. Special equipment is not needed, so equipment funds are greatly saved; moreover, experimental comparison proves that the drill rod manufactured by the process can meet using requirements.
Description
Technical field
The present invention relates to a kind of drilling rod, belong to geological exploration field.
Background technology
Along with the rapid development of oil and natural gas industry and geological prospecting enterprises, more and more higher technical requirements has been proposed for drilling well and extraction industry.Be not only the increase of exploration quantity, and because " exhaustion " of the shallow table resource of the earth's crust and the energy, but the degree of depth increase at double of generaI investigation and probing is that the probing condition is increasingly sophisticated and abominable like this, simultaneously, also must strengthen the building size and the process of drilling well comprehensively, and increasing in outlying district and seabed.
Increase along with drilling depth, the also corresponding increase of the weight of drilling rod, this just requires to increase the weight capacity of drilling equipment, also to improve the strength character of this province of drilling rod tubing, therefore can select the higher probing tubing of a kind of specific strength ratio of (intensity of material with its density), not only can alleviate the weight of drilling rod self, be convenient in the complicated high mountain hills carrying of execution conditions, but also reduced the requirement of the weight capacity of drilling equipment, reduce the energy consumption of lifting operation, and reduce the thrust of drilling rod drilling shaft lining.Show not only possess above-mentioned advantage after deliberation with the high-strength aluminum alloy tubing of aluminium alloys manufacturing, in addition, aluminium alloys also has that density is little, specific strength is high, nonmagnetic, brittle fracture tendentiousness is little, the cryomechanics stability is good, advantages such as good manufacturability.Therefore aluminum alloy drill rod end structure is as a kind of trend of following solid boring bar development.
If the direct machining screw of the tubing of wall thickness such as employing is as drilling rod, the relative body of section intensity of threaded portion is comparatively weak, therefore, in order to guarantee the mechanical performance of aluminum alloy drill rod end structure threaded portion, the jumping-up process for upsetting is carried out in the aluminium alloys end, increase the cross section diameter of threaded portion, improve the screw thread comprehensive mechanical performance.
According to investigation, abroad produce this in (outward) the change section tubing of reinforcement is arranged is the method that adopts the perforation of horizontal hydraulic extruder forward to push.This technological process is comparatively complicated, rectifys, cuts saw, checks cutting thread from ingot casting heating, extruding, quenching, stretching, pressure.Form a whole set of process production line operation, required special equipment is more, and investment drops into bigger.At present, complete aluminum alloy drill rod end structure production line is not arranged at home as yet.
Therefore, the production equipment and the experience of ordinary steel two ends of drill thickening produced in the our factory utilization, and the high-strength drill pipe body is carried out the drill rod end thickening, and then body is carried out molten admittedly and Ageing Treatment, and then carries out screw thread processing.Need not to acquire specialized apparatus, saved the equipment funds input greatly, simultaneously,, utilize this explained hereafter drilling rod can reach instructions for use through the overtesting contrast.
Summary of the invention
The purpose of this invention is to provide a kind of aluminum alloy drill rod end structure and process for upsetting thereof, not only alleviate the weight of drilling rod self, but also reduced the requirement of the weight capacity of drilling equipment, reduce the energy consumption of lifting operation, and reduce the thrust of drilling rod drilling shaft lining.
The objective of the invention is to be achieved through the following technical solutions:
A kind of aluminum alloy drill rod end structure, two ends of drill have the thickness bigger than other parts, and for alleviating the structural stress of self, the two ends surfaces externally and internally of drilling rod adopts the surface transition thickening gradually of inclination, and two ends of drill is carried out screw thread processing.
The process for upsetting of described aluminum alloy drill rod end structure comprises:
1) the thickening machine inner mold is preheated at least 180 ℃, because the heat distortion temperature of aluminum alloy drill rod end structure is lower, so need be preheated to pattern;
2) in Medium Frequency Induction Heating Furnace, heat, adopt low-power to heat slowly, raise the temperature to 320 ± 10 ℃;
3) will heat body and from heating furnace, take out after, send into rapidly in the end upsetting machine and thicken moulding;
4) air cooling is to room temperature.
The present invention carries out the drill rod end thickening to the high-strength drill pipe body, and then body is carried out molten admittedly and Ageing Treatment, and then carries out screw thread processing.Need not to acquire specialized apparatus, saved the equipment funds input greatly, simultaneously,, utilize this explained hereafter drilling rod can reach instructions for use through the overtesting contrast.
And aluminum alloy drill rod end structure of the present invention can alleviate the weight of drilling rod self, be convenient in the complicated high mountain hills carrying of execution conditions, but also reduced the requirement of the weight capacity of drilling equipment, reduce the energy consumption of lifting operation, and reduce the thrust of drilling rod drilling shaft lining.With the high-strength aluminum alloy tubing of aluminium alloys manufacturing also have that density is little, specific strength is high, nonmagnetic, brittle fracture tendentiousness is little, the cryomechanics stability is good, advantages such as good manufacturability.
Description of drawings
With embodiment the present invention is described in further detail with reference to the accompanying drawings below.
Fig. 1 is the end construction figure of the described aluminum alloy drill rod end structure of the embodiment of the invention
The specific embodiment
As shown in Figure 1, the described aluminum alloy drill rod end structure of the embodiment of the invention, two ends of drill have the thickness bigger than other parts, for alleviating the structural stress of self, the two ends surfaces externally and internally of drilling rod adopts the surface transition thickening gradually of inclination, and two ends of drill is carried out screw thread processing.
The process for upsetting of described aluminum alloy drill rod end structure comprises:
1) the thickening machine inner mold is preheated at least 180 ℃, because the heat distortion temperature of aluminum alloy drill rod end structure is lower, so need be preheated to pattern;
2) in Medium Frequency Induction Heating Furnace, heat, adopt low-power to heat slowly, raise the temperature to 320 ± 10 ℃;
3) will heat body and from heating furnace, take out after, send into rapidly in the end upsetting machine and thicken moulding;
4) air cooling is to room temperature.
The present invention carries out the drill rod end thickening to the high-strength drill pipe body, and then body is carried out molten admittedly and Ageing Treatment, and then carries out screw thread processing.Need not to acquire specialized apparatus, saved the equipment funds input greatly, simultaneously,, utilize this explained hereafter drilling rod can reach instructions for use through the overtesting contrast.
And aluminum alloy drill rod end structure of the present invention can alleviate the weight of drilling rod self, be convenient in the complicated high mountain hills carrying of execution conditions, but also reduced the requirement of the weight capacity of drilling equipment, reduce the energy consumption of lifting operation, and reduce drilling rod to the thrust of drilling shaft lining. With the high intensity aluminium alloy pipe material of aluminium alloy manufacturing also have that density is little, specific strength is high, nonmagnetic, brittle fracture tendentiousness is little, the cryomechanics stability is good, the advantages such as good manufacturability.
Claims (2)
1. an aluminum alloy drill rod end structure is characterized in that, two ends of drill has the thickness bigger than other parts, and the two ends surfaces externally and internally of drilling rod adopts the surface transition thickening gradually of inclination, and two ends of drill is carried out screw thread processing.
2. the process for upsetting of the described aluminum alloy drill rod end structure of claim 1 comprises:
1) the thickening machine inner mold is preheated at least 180 ℃;
2) in Medium Frequency Induction Heating Furnace, heat, adopt low-power to heat slowly, raise the temperature to 320 ± 10 ℃;
3) will heat body and from heating furnace, take out after, send into rapidly in the end upsetting machine and thicken moulding;
4) air cooling is to room temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910222390A CN101705793A (en) | 2009-11-17 | 2009-11-17 | Aluminum alloy drill rod end structure and process for upsetting same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910222390A CN101705793A (en) | 2009-11-17 | 2009-11-17 | Aluminum alloy drill rod end structure and process for upsetting same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101705793A true CN101705793A (en) | 2010-05-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910222390A Pending CN101705793A (en) | 2009-11-17 | 2009-11-17 | Aluminum alloy drill rod end structure and process for upsetting same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101705793A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9845645B2 (en) | 2010-01-28 | 2017-12-19 | Sunstone Technologies, Llc | Tapered spline connection for drill pipe, casing, and tubing |
| US10006255B2 (en) | 2010-01-28 | 2018-06-26 | Sunstone Technologies, Llc | Tapered spline connection for drill pipe, casing, and tubing |
-
2009
- 2009-11-17 CN CN200910222390A patent/CN101705793A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9845645B2 (en) | 2010-01-28 | 2017-12-19 | Sunstone Technologies, Llc | Tapered spline connection for drill pipe, casing, and tubing |
| US10006255B2 (en) | 2010-01-28 | 2018-06-26 | Sunstone Technologies, Llc | Tapered spline connection for drill pipe, casing, and tubing |
| US10060197B2 (en) | 2010-01-28 | 2018-08-28 | Sunstone Technologies, Llc | Tapered spline connection for drill pipe, casing, and tubing |
| US10066446B2 (en) | 2010-01-28 | 2018-09-04 | Sunstone Technologies, Llc | Tapered spline connection for drill pipe, casing, and tubing |
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| PB01 | Publication | ||
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20100512 |