CN108311858B - Drill rod machining process - Google Patents
Drill rod machining process Download PDFInfo
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- CN108311858B CN108311858B CN201710026709.2A CN201710026709A CN108311858B CN 108311858 B CN108311858 B CN 108311858B CN 201710026709 A CN201710026709 A CN 201710026709A CN 108311858 B CN108311858 B CN 108311858B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/28—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools
- B23P15/32—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools twist-drills
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Abstract
The invention discloses a drill rod processing technology, which belongs to the field of drill rod processing and manufacturing, has the advantages of improving the straightness of a drill rod and improving the processing quality of the drill rod, and adopts the following technical scheme that the drill rod processing technology comprises the following steps: the method comprises the following steps: piping and blanking; step two: processing parts; step three: processing the key bars; step four: straightening; step five: inspecting the adapter tube; step six: correcting and straightening; step seven: clicking a key; step eight: welding a key; step nine: thirdly, straightening; step ten: the equipment, through multistep hot working alignment, improve the straightness accuracy of steel pipe, reduce drilling rod bending deformation, avoid producing to straighten by a wide margin and influence drilling rod production quality to improve the result of use of drilling rod.
Description
Technical Field
The invention relates to the field of drill rod processing and manufacturing, in particular to a drill rod processing technology.
Background
The drill string typically consists of: the drill comprises a drill bit, a drill collar, a drill rod, a stabilizer, a special joint and a kelly; the drilling rod can effectively extend and retract, so that the hole turning depth of the drilling machine is improved, the drilling rod is a steel pipe with threads at the tail part and is used for connecting equipment on the ground surface of the drilling machine and drilling and grinding equipment or a bottom hole device positioned at the bottom end of a drilling well, the drilling rod is used for conveying drilling mud to a drill bit and improving, reducing or rotating the bottom hole device together with the drill bit, the drilling rod must be capable of bearing huge internal and external pressure, distortion, bending and vibration, and the drilling rod can be used for multiple times in the process of mining and refining oil gas.
The light pipe and the original steel pipe on the drill rod are manufactured into the drill rod after a plurality of processing steps, and the finished drill rod is formed by sequentially sleeving a plurality of sections of rod pieces, and the interior of the finished drill rod is connected and guided through a clamping piece welded on the side wall of the drill rod and a long-strip-shaped limiting strip, so that the drill rod can be conveniently stretched and clamped and fixed.
In order to conveniently clamp the rod piece and improve the overall length of the drill rod, more accessories and key bars need to be welded on the rod piece, the drill rod is easily bent in effective amplitude in the installation process due to the fact that the drill rod is lengthened in the machining process, or the state of the drill rod is easily influenced in the welding process, so that the actually manufactured drill rod is greatly abraded mutually in the use process, the compressed force of the drill rod is deflected in the drilling process, and the service life of the drill rod is shortened.
Disclosure of Invention
The invention aims to provide a drill rod processing technology which has the advantages of improving the straightness of a drill rod and improving the processing quality of the drill rod.
The technical purpose of the invention is realized by the following technical scheme: a drill rod machining process comprises the following steps:
the method comprises the following steps: blanking of a piping: cutting the steel pipe, and preparing accessories and key bars;
step two: processing parts: carrying out heat treatment for improving the strength and processing for shape trimming on the fittings;
step three: processing the key bars: trimming the internal key bar;
step four: straightening: performing primary straightness straightening on the cut steel pipe;
step five: inspecting the connecting pipe: detecting the steel pipe, and welding a connecting pipe to the steel pipe at the opposite end;
step six: straightening: straightening the jointed steel pipe for the second time;
step seven: and (5) key clicking: spot welding the fittings and the key bars on the steel pipe for primary fixing;
step eight: welding a key: uniformly and fixedly welding the preliminarily welded accessories and the key bars;
step nine: straightening in the third step: straightening the straightness of the steel pipe subjected to the pipe jointing for the third time;
step ten: assembling: the steps are repeated to process the rod pieces with different sizes, and the rod pieces are sequentially inserted and fixed from large diameter to small diameter.
By adopting the technical scheme, the steel pipe is straightened for the first time after being cut, so that the steel pipe can keep better straightness before being welded, the bending amount is prevented from being increased in the later processing process, the steel pipe can be straightened for the second time after being taken over, the bending generated in the taking over process can be overcome, the straightness of the steel pipe is ensured, the third straightening is performed after accessories and key strips are welded, the bending generated in the welding process is effectively overcome, the straightness of the steel pipe is further ensured, the straightening is performed after each step, the lever is effectively prevented from being bent by a large margin, the damage to the internal structure of the steel pipe caused by the one-time bending is prevented, the strength of the steel pipe is reduced, the straightness of the steel pipe is improved and the bending deformation of a drill rod is reduced, the production quality of the drill rod is prevented from being affected by large-amplitude alignment, so that the using effect of the drill rod is improved.
Further, step four: straightening: the steel pipe bounce is observed through the conveying action of the roller carrier to test the full-length straightness of the steel pipe, and the steel plate ruler is used for accurately testing the straightness of the steel pipe per meter;
and in the straightening process, the steel pipe is baked by oxyacetylene neutral flame to perform rough straightening.
Through adopting above-mentioned technical scheme, place the steel pipe and carry on the gyro wheel frame to whether produce the bending degree that beats the preliminary detection steel pipe at the in-process of carrying through the steel pipe, when beating great, use the steel plate chi to carry out meter-by-meter measurement once more, thereby the effectual efficiency that detects that has improved, the steel pipe is baked to neutral flame of rethread oxygen acetylene, thereby prevent that steel pipe inner structure from producing the change, people carry out the coarse straightening through the straightener, thereby improve the effect and the efficiency of straightening.
Further, step six: straightening: the steel pipe bounce is observed through the conveying action of the roller carrier to test the full-length straightness of the steel pipe, and the steel plate ruler is used for accurately testing the straightness of the steel pipe per meter;
and (3) baking the steel pipe by using oxyacetylene neutral flame in the straightening process, finely straightening, and cooling to room temperature.
Through adopting above-mentioned technical scheme, place the steel pipe and carry on the gyro wheel frame to whether produce the bending degree that beats the preliminary detection steel pipe at the in-process of carrying through the steel pipe, when beating great, use the steel plate chi to carry out meter-by-meter measurement once more, thereby the effectual efficiency that detects that has improved, rethread oxyacetylene neutral flame bakes the steel pipe, thereby prevent that steel pipe inner structure from producing the change, people carry out the fine tuning through the straightener, the effect of straightening has been improved.
Further, step six: and (3) baking the steel pipe by using oxyacetylene neutral flame in the calibration and straightening process, and performing fine calibration and straightening repeatedly until the straightness reaches the standard after cooling to room temperature.
By adopting the technical scheme, the heating, the fine adjustment and the cooling are repeatedly and circularly carried out during the straightening, and the straightening is carried out for 0-1 degree at each time, so that the steel pipe damage caused by the overlarge angle adjustment is prevented, the straightening state is slow, and the straightening effect is greatly improved.
Further, step five: inspecting the connecting pipe: when the pipe is needed to be welded after the length detection, backing welding is firstly carried out: single-side welding and double-side molding;
and then filling and cover surface welding are carried out.
Through adopting above-mentioned technical scheme, the back welding is effectual prevents angular deformation, and the rethread fills the capping and welds, makes the more firm of welding position.
Further, step seven: and (5) key clicking: firstly, scribing: marking out accessories and key bar welding positions on the surface of the steel pipe;
and then, installation is carried out: preliminarily fixing the corresponding marking position of the accessory in a spot welding manner;
then, key arrangement is carried out: preliminarily fixing the spaced marking positions of partial key bars in a spot welding manner;
and then key supplement is carried out: preliminarily fixing the rest key bars according to the marking positions in a spot welding mode;
and then polishing: polishing and impurity removal are carried out on the parts, the key bars and the welding positions of the steel pipes;
and then, carrying out a check: the mounting position and the welding strength were preliminarily checked.
Through adopting above-mentioned technical scheme, marking off earlier, the effectual accuracy that improves accessory and keybar installation has reduced the trouble of later stage modification, makes things convenient for people to carry out manual welding, and the fixed efficiency of effectual improvement accessory and keybar through the mode of spot welding is convenient for carry out welding on a large scale at the back.
Further, step eight: welding a key: firstly, manual welding is carried out: welding is carried out in a manual mode, and all right-angle and bent welding positions are welded;
and then carrying out mechanical welding: all welding positions of the long strips are welded through a welding machine;
cleaning and polishing: cleaning waste materials on the welding seams, and polishing the welding seams;
and then, carrying out a check: the mounting position and the welding strength were checked again.
Through adopting above-mentioned technical scheme, because can be effectual after the electric welding weld comparatively complicated positions such as right angle, bending through manual welding's mode, the rethread welding machine carries out the automatic welding to long banding position, improves welded efficiency to the effectual whole member of assurance can high-efficient quick welding.
Further, step ten: assembling: firstly, inserting and assembling: sequentially inserting and fixing rod pieces from large diameter to small diameter, mounting the drill rod assembly at the end part of a drill rod, and inserting a core rod into the smallest rod piece;
and then spraying paint: spraying protective paint on the surfaces of the rod piece, the drill rod component and the core rod;
and then, carrying out a check: the mounting position and the welding strength were preliminarily checked.
Through adopting above-mentioned technical scheme, make things convenient for the drilling rod to assemble, the effectual member outward appearance that protects sprays paint, and effectual reduction member rusts.
Further, the cutting of the steel pipe, the preparation of the fittings, and the preparation of the keybars in the piping blanking are performed separately.
Through adopting above-mentioned technical scheme, separately carry out effectual machining efficiency that has improved.
Further, step three: processing the key bars: firstly, key cutting is carried out: cutting off the shape of the key strip by a cutting machine;
and then key correcting machining is carried out: checking the qualification of the key strips, and correcting by using machining equipment;
and then carrying out heat treatment: strengthening the strength of the key bars by heat treatment equipment;
and then finish machining is carried out: and (5) checking the qualification of the key strip, and correcting the key strip again by using machining equipment.
By adopting the technical scheme, the efficiency of processing the key bars is effectively improved, the key bars are more accurately manufactured, and the using effect of the key bars is improved.
In conclusion, the invention has the following beneficial effects:
1. the straightening precision and the straightening effect are improved, and the manufacturing quality of the drill rod is further improved;
2. the straightness of the drill rod is kept good, and the quality of the drill rod is improved through multiple times of fine adjustment;
3. the installation of the key bars and accessories is accurate;
4. the drill rod has long service life.
Drawings
FIG. 1 is a process flow diagram of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
A drill rod processing technology is characterized in that: the method comprises the following steps:
the method comprises the following steps: blanking of a piping: cutting the steel pipe, and preparing accessories and key bars;
the cutting of the steel pipe, the preparation of accessories and the keybars can be synchronously carried out, and the cutting can also be carried out through different production lines, so that the processing efficiency is improved, and the later welding is convenient;
after the steel pipe is cut, after the accessories and the key bars are taken out, the steel pipe, the accessories and the key bars are conveyed to a sand blasting derusting machine for sand blasting derusting, so that rust and dust on the surfaces of the steel pipe, the accessories and the key bars which are stored for a long time are removed, the cleanliness of the surfaces of the steel pipe, the accessories and the key bars is ensured, the later welding processing is facilitated, and the welding effect is improved.
Step two: processing parts: carrying out heat treatment for improving the strength and processing for shape trimming on the fittings;
the accessory passes through heat treatment side mode, has improved the structural strength of accessory to the use in the later stage of being convenient for, and polish the repairment to the accessory, thereby the adaptability when guaranteeing the accessory installation improves the connection effect in later stage.
Step three: processing the key bars: processing the key bars: firstly, key cutting is carried out: cutting off the shape of the key strip by a cutting machine;
and then key correcting machining is carried out: checking the qualification of the key strips, and correcting by using machining equipment;
and then carrying out heat treatment: strengthening the strength of the key bars by heat treatment equipment;
and then finish machining is carried out: checking the qualification of the key strips, and correcting the key strips again by using machining equipment;
the keybar of different shapes is cut off from steel in the manufacturing of keybar, and preliminary machining is carried out to rethread machining equipment, carries out heat treatment again to make the keybar have good structural strength, carry out the finish machining that becomes more meticulous through machining equipment to the keybar, thereby make the keybar can accord with the installation effect.
Step four: straightening: the steel pipe bounce is observed through the conveying action of the roller carrier to test the full-length straightness of the steel pipe, and the steel plate ruler is used for accurately testing the straightness of the steel pipe per meter;
in the straightening process, an oxyacetylene neutral flame is used for baking the steel pipe to perform rough straightening;
place the steel pipe and carry on the gyro wheel frame to whether produce the bending degree that beats the preliminary detection steel pipe at the in-process of carrying through the steel pipe, when beating when great, use the steel plate chi to carry out meter-by-meter measurement once more, thereby the effectual efficiency that detects that has improved, the steel pipe is baked to rethread oxygen acetylene neutral flame, thereby prevent that steel pipe inner structure from producing the change, people carry out the coarse straightening through the straightener, thereby improve the effect and the efficiency of straightening.
Step five: inspecting the connecting pipe: when the pipe is needed to be welded after the length detection, backing welding is firstly carried out: single-side welding and double-side molding;
then, performing filling cover surface welding;
the back welding effectively prevents angular deformation, and the rethread fills the capping and welds, makes the more firm of welding position.
Step six: straightening: the steel pipe bounce is observed through the conveying action of the roller carrier to test the full-length straightness of the steel pipe, and the steel plate ruler is used for accurately testing the straightness of the steel pipe per meter;
in the straightening process, an oxyacetylene neutral flame is used for baking the steel pipe, fine straightening is carried out, cooling is carried out to the room temperature, and the operation is repeated until the straightness reaches the standard after the steel pipe is cooled to the room temperature;
during straightening, the heating, the fine adjustment and the cooling are repeatedly and circularly carried out, and the straightening is carried out for 0-1 degree at each time, so that the steel pipe damage caused by the overlarge adjusting angle is prevented, the straightening state is slow, and the straightening effect is greatly improved.
Step seven: and (5) key clicking: firstly, scribing: marking out accessories and key bar welding positions on the surface of the steel pipe;
and then, installation is carried out: preliminarily fixing the corresponding marking position of the accessory in a spot welding manner;
then, key arrangement is carried out: preliminarily fixing the spaced marking positions of partial key bars in a spot welding manner;
and then key supplement is carried out: preliminarily fixing the rest key bars according to the marking positions in a spot welding mode;
and then polishing: polishing and impurity removal are carried out on the parts, the key bars and the welding positions of the steel pipes;
and then, carrying out a check: carrying out primary inspection on the mounting position and the welding strength;
the marking pen is used for marking the steel pipe, so that the accuracy of installation of accessories and the key bars is effectively improved, the trouble of later modification is reduced, manual welding is facilitated for people, the fixing efficiency of the accessories and the key bars is effectively improved through spot welding, and large-scale welding is facilitated to be carried out at the back.
Step eight: welding a key: firstly, manual welding is carried out: welding is carried out in a manual mode, and all right-angle and bent welding positions are welded;
and then carrying out mechanical welding: all welding positions of the long strips are welded through a welding machine;
cleaning and polishing: cleaning waste materials on the welding seams, and polishing the welding seams;
and then, carrying out a check: the mounting position and the welding strength are checked again;
because can be effectual after the electric welding with the comparatively complicated positions such as right angle, bending through manual welding's mode weld, the rethread welding machine carries out the automatic welding to long banding position, improves welded efficiency to the effectual whole member of assurance can high-efficient quick welding.
Step nine: straightening in the third step: straightening the straightness of the steel pipe subjected to the pipe jointing for the third time;
the straightness of the drill rod can be detected again through the three-calibration straightening, the rotating rod can be kept in a good state, when the drill rod is bent, straightening is directly carried out through the straightening machine, and the straightening efficiency is improved.
Step ten: assembling: firstly, inserting and assembling: sequentially inserting and fixing rod pieces from large diameter to small diameter, mounting the drill rod assembly at the end part of a drill rod, and inserting a core rod into the smallest rod piece;
and then spraying paint: spraying protective paint on the surfaces of the rod piece, the drill rod component and the core rod;
and then, carrying out a check: the mounting position and the welding strength were preliminarily checked.
Make things convenient for the drilling rod to assemble, the effectual member outward appearance that protects sprays paint, and effectual reduction member rusts.
The steel pipe is cut and then straightened for the first time, so that the steel pipe can keep better straightness before welding, the bending amount is prevented from being increased in the later processing process, after the steel pipe is taken over, secondary straightening can be carried out again, so that the bending generated in the taking over process can be overcome, the straightness of the steel pipe is ensured, after accessories and key strips are welded, straightening is carried out for the third time, so that the bending generated in the welding process is effectively overcome, the straightness of the steel pipe is further ensured, because the straightening is carried out after each step, the lever is effectively prevented from being bent to a large extent, the damage to the internal structure of the steel pipe and the reduction of the strength of the steel pipe caused by one-time bending are prevented, the straightness of the steel pipe is improved through multi-step hot processing straightening, the bending deformation of the drill rod is reduced, and the influence on the production quality of the drill rod caused by large-extent straightening is avoided, thereby improving the use effect of the drill rod.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (7)
1. A drill rod processing technology is characterized in that: the method comprises the following steps:
the method comprises the following steps: blanking of a piping: cutting the steel pipe, and preparing accessories and key bars;
step two: processing parts: carrying out heat treatment for improving the strength and processing for shape trimming on the fittings;
step three: processing the key bars: trimming the internal key bar;
step four: straightening: placing the steel pipe on a roller frame for conveying, preliminarily detecting the bending degree of the steel pipe by judging whether the steel pipe generates jumping in the conveying process, measuring the steel pipe meter by using a steel plate ruler when the steel pipe has larger jumping, baking the steel pipe by using oxyacetylene neutral flame, and roughly straightening by using a straightening machine;
step five: inspecting the connecting pipe: detecting the steel pipe, and welding a connecting pipe to the steel pipe at the opposite end;
step six: straightening: the steel pipe bounce is observed through the conveying action of the roller carrier to test the full-length straightness of the steel pipe, and the steel plate ruler is used for accurately testing the straightness of the steel pipe per meter;
heating, fine adjusting and cooling are repeatedly and circularly carried out by using oxyacetylene neutral flame to bake the steel pipe in the straightening process, wherein the straightening is carried out at 0-1 ℃ each time until the straightness reaches the standard after the steel pipe is cooled to room temperature;
step seven: and (5) key clicking: spot welding the fittings and the key bars on the steel pipe for primary fixing;
step eight: welding a key: uniformly and fixedly welding the preliminarily welded accessories and the key bars;
step nine: straightening in the third step: detecting the straightness of the drill rod again after the pipe is jointed, and straightening the drill rod directly through a straightener when the drill rod is bent;
step ten: assembling: the steps are repeated to process the rod pieces with different sizes, and the rod pieces are sequentially inserted and fixed from large diameter to small diameter.
2. The drill rod processing technology as claimed in claim 1, wherein: step five: inspecting the connecting pipe: when the pipe is needed to be welded after the length detection, backing welding is firstly carried out: single-side welding and double-side molding;
and then filling and cover surface welding are carried out.
3. The drill rod processing technology as claimed in claim 1, wherein: step seven: and (5) key clicking: firstly, scribing: marking out accessories and key bar welding positions on the surface of the steel pipe;
and then, installation is carried out: preliminarily fixing the corresponding marking position of the accessory in a spot welding manner;
then, key arrangement is carried out: preliminarily fixing the spaced marking positions of partial key bars in a spot welding manner;
and then key supplement is carried out: preliminarily fixing the rest key bars according to the marking positions in a spot welding mode;
and then polishing: polishing and impurity removal are carried out on the parts, the key bars and the welding positions of the steel pipes;
and then, carrying out a check: the mounting position and the welding strength were preliminarily checked.
4. A drill rod machining process according to claim 3, wherein: step eight: welding a key: firstly, manual welding is carried out: welding is carried out in a manual mode, and all right-angle and bent welding positions are welded;
and then carrying out mechanical welding: all welding positions of the long strips are welded through a welding machine;
cleaning and polishing: cleaning waste materials on the welding seams, and polishing the welding seams;
and then, carrying out a check: the mounting position and the welding strength were checked again.
5. The drill rod processing technology as claimed in claim 1, wherein: step ten: assembling: firstly, inserting and assembling: sequentially inserting and fixing rod pieces from large diameter to small diameter, mounting the drill rod assembly at the end part of a drill rod, and inserting a core rod into the smallest rod piece;
and then spraying paint: spraying protective paint on the surfaces of the rod piece, the drill rod component and the core rod;
and then, carrying out a check: the mounting position and the welding strength were preliminarily checked.
6. The drill rod processing technology as claimed in claim 1, wherein: and the cutting of the steel pipe, the preparation of accessories and the preparation of the key bars in the blanking of the piping are separately carried out.
7. The drill rod processing technology as claimed in claim 1, wherein: step three: processing the key bars: firstly, key cutting is carried out: cutting off the shape of the key strip by a cutting machine;
and then key correcting machining is carried out: checking the qualification of the key strips, and correcting by using machining equipment;
and then carrying out heat treatment: strengthening the strength of the key bars by heat treatment equipment;
and then finish machining is carried out: and (5) checking the qualification of the key strip, and correcting the key strip again by using machining equipment.
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| CN201710026709.2A CN108311858B (en) | 2017-01-14 | 2017-01-14 | Drill rod machining process |
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| CN201710026709.2A CN108311858B (en) | 2017-01-14 | 2017-01-14 | Drill rod machining process |
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| CN108311858B true CN108311858B (en) | 2020-09-01 |
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| CN108994536B (en) * | 2018-07-26 | 2019-09-20 | 天津鸿翔工程机械有限公司 | A kind of processing method of machine locking-type drilling rod |
| CN108857285A (en) * | 2018-07-26 | 2018-11-23 | 天津鸿翔工程机械有限公司 | A kind of processing technology of machine locking-type drilling rod |
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