CN209780782U - External thread tool joint - Google Patents
External thread tool joint Download PDFInfo
- Publication number
- CN209780782U CN209780782U CN201822182292.1U CN201822182292U CN209780782U CN 209780782 U CN209780782 U CN 209780782U CN 201822182292 U CN201822182292 U CN 201822182292U CN 209780782 U CN209780782 U CN 209780782U
- Authority
- CN
- China
- Prior art keywords
- joint body
- drilling rod
- rod
- drill rod
- tool joint
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000005553 drilling Methods 0.000 claims abstract description 75
- 230000002209 hydrophobic Effects 0.000 claims description 17
- 238000007789 sealing Methods 0.000 claims description 13
- 239000011248 coating agent Substances 0.000 claims description 9
- 238000000576 coating method Methods 0.000 claims description 9
- 230000003014 reinforcing Effects 0.000 claims description 8
- 239000010425 asbestos Substances 0.000 claims description 7
- -1 polytetrafluoroethylene Polymers 0.000 claims description 7
- 229910052895 riebeckite Inorganic materials 0.000 claims description 7
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 6
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 6
- BFKJFAAPBSQJPD-UHFFFAOYSA-N Tetrafluoroethylene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 claims description 4
- NBVXSUQYWXRMNV-UHFFFAOYSA-N Fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 claims description 3
- 238000003723 Smelting Methods 0.000 claims description 3
- 229910000623 nickel–chromium alloy Inorganic materials 0.000 claims description 3
- 230000000379 polymerizing Effects 0.000 claims description 3
- 238000005245 sintering Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 2
- 230000002035 prolonged Effects 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 description 6
- 210000001503 Joints Anatomy 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 210000003491 Skin Anatomy 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 229910001120 nichrome Inorganic materials 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The utility model discloses an external thread drill rod joint, which comprises a drill rod a, a drill rod joint body and a drill rod b, wherein external threads are arranged on the outer surfaces of the convex parts at the left and right ends of the drill rod joint body, internal threads are symmetrically arranged on the inner wall of the opposite end of the drill rod a and the drill rod b, and the drill rod a and the drill rod b are respectively fixedly connected with the external threads at the two ends of the drill rod joint body through the internal threads; the workman possesses the both ends that internal screw thread one end is just to the tool joint body respectively with drilling rod a and drilling rod b, and rotate respectively and make drilling rod a, drilling rod b connects through the tool joint body, the setting of wearing layer can be fine simultaneously protects the guard plate, avoid the guard plate to take place wearing and tearing in drilling operation, protect the tool joint body, thereby make the tool joint body have fine wearability, the service life is prolonged, make the tool joint body and be connected between drilling rod a and the drilling rod b more stable.
Description
Technical Field
The utility model belongs to the technical field of tool joint, concretely relates to external screw thread tool joint.
Background
The drilling rod is a steel pipe that the afterbody has a thread for connect rig earth's surface equipment and be located well drilling bottom and bore mill equipment or bottom hole device, the usage of drilling rod is to transport drilling mud to the drill bit, and improve together with the drill bit, reduce or rotatory bottom hole device, the drilling rod must can bear huge internal and external pressure, distortion, bending and vibration, at the exploitation of oil gas and refine the in-process, the drilling rod can repetitious usage, need use drilling rod joint to come together with many drilling rod links together in the drilling rod use, thereby reach deep drilling operation.
When connecting two drilling rods together, the original drill rod joint is easily abraded to cause unstable connection, the service life is shortened, and the mutual separation between the drilling rods is caused, so that the influence is brought to the drilling rod operation.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an external screw thread tool joint to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an external screw thread tool joint, includes drilling rod an, tool joint body and drilling rod b, the external screw thread has all been seted up to the surface at both ends protrusion position about the tool joint body, the inner wall symmetry of the relative one end of drilling rod an and drilling rod b has been seted up the internal thread, external screw thread fixed connection through internal thread and tool joint body both ends respectively to drilling rod a and drilling rod b, the outer skin weld of tool joint body has the guard plate, the surface coating of guard plate has the hydrophobic layer, a side bonding that the guard plate was kept away from to the hydrophobic layer has enhancement layer an, enhancement layer an's surface bonding has enhancement layer b, a side coating that enhancement layer an was kept away from to enhancement layer.
Preferably, the left side surface and the right side surface of the drill rod joint body are both bonded with sealing rings, and one side surfaces of the two sealing rings, which are back to back, are respectively attached to one side surface of the drill rod a opposite to the drill rod b.
Preferably, the length of the protection plate is greater than that of the drill rod joint body, and the inner surface of the protection plate is attached to the outer surfaces of the drill rods a and b respectively.
Preferably, the hydrophobic layer is a hydrophobic coating film made of fluorocarbon wax.
Preferably, the reinforcing layer a is made of polytetrafluoroethylene prepared by polymerizing tetrafluoroethylene, and the reinforcing layer b is made of asbestos gauze.
Preferably, the wear-resistant layer is formed by smelting and sintering nickel-chromium alloy on the surface of the protection plate.
Compared with the prior art, the beneficial effects of the utility model are that: when needs are connected drilling rod a and drilling rod b, the workman possesses drilling rod a and drilling rod b internal screw thread one end respectively just to the both ends of tool joint body, and rotate respectively and make drilling rod a, drilling rod b connects through the tool joint body, the sealing washer can guarantee the well of junction leakproofness between drilling rod a and drilling rod b and the tool joint body simultaneously, avoid external liquid to enter into inside the tool joint body, the setting of wearing layer can be fine simultaneously protects the guard plate, avoid taking place wearing and tearing in the drilling operation guard plate, and then protect the tool joint body, thereby make the tool joint body have fine wearability, service life is prolonged, make the connection between tool joint body and drilling rod a and the drilling rod b more stable.
drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a tool joint according to the present invention;
Fig. 3 is an enlarged schematic structural view at a position a of the present invention;
In the figure: 1. a drill rod a; 2. a tool joint body; 3. a drill rod b; 4. an external thread; 5. an internal thread; 6. a seal ring; 7. a protection plate; 8. a hydrophobic layer; 9. a reinforcing layer a; 10. a reinforcing layer b; 11. and a wear-resistant layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides an external screw thread tool joint, including drilling rod a1, tool joint body 2 and drilling rod b3, external screw thread 4 has all been seted up to the surface of both ends bulge about tool joint body 2, internal thread 5 has been seted up to the inner wall symmetry of the relative one end of drilling rod a1 and drilling rod b3, drilling rod a1 and drilling rod b3 are respectively through the external screw thread 4 fixed connection at internal thread 5 and tool joint body 2 both ends, the outer surface welding of tool joint body 2 has protection plate 7, the outer surface coating of protection plate 7 has hydrophobic layer 8, a side that protection plate 7 was kept away from to hydrophobic layer 8 bonds has enhancement layer a9, the surface bonding of enhancement layer a9 has enhancement layer b10, the side coating that enhancement layer b10 kept away from enhancement layer.
in this embodiment, fluorine atom polarizability is low in the fluorine carbon wax, has the shielding effect, has good hydrophobic ability, sets up hydrophobic layer 8 through the surface at guard plate 7 to make liquid can not gather on the drill rod joint body 2 surface in the drill rod joint body 2 use, thereby prolonged the life of drill rod joint body 2.
In this embodiment, through the surface at hydrophobic layer 8 sets up enhancement layer a9 and enhancement layer b10, enhancement layer a9 adopts the polytetrafluoroethylene that the tetrafluoroethylene supported, polytetrafluoroethylene has acid and alkali resistance and high temperature resistance characteristics, thereby can protect protection plate 7, avoid protection plate 7 to take place the phenomenon of damage in the use, enhancement layer b10 adopts the asbestos gauge simultaneously, the asbestos gauge has stronger high tensile strength, and then avoid in drilling operation that the torsional force is too big and lead to being connected unstablely between drilling rod a1 and the drilling rod b3, thereby guaranteed that the connection between drilling rod joint body 2 to drilling rod a1 and the drilling rod b3 is more stable.
In this embodiment, wearing layer 11 sets up at guard plate 7 surface, and nichrome has good wear resistance, has played a fine guard action to guard plate 7 to avoid guard plate 7 to receive the damage in the drilling operation.
In this embodiment, when the drill rod a1 and the drill rod b3 need to be connected, a worker respectively faces the ends of the drill rod a1 and the drill rod b3 with the internal threads 5 to the two ends of the drill rod joint body 2, and respectively rotates to connect the drill rod a1 and the drill rod b3 through the drill rod joint body 2, and the seal rings 6 can ensure good sealing performance at the joints between the drill rod a1 and the drill rod b3 and the drill rod joint body 2, so as to prevent external liquid from entering the interior of the drill rod joint body 2, and at the same time, the wear-resistant layer 11 can well protect the protection plate 7, so as to prevent the protection plate 7 from being worn during drilling operation, and further protect the drill rod joint body 2, and by arranging the seal rings 6 on the left and right side surfaces of the drill rod joint body 2, so that when the drill rod a1 is connected with the drill rod b3 through the drill rod joint body 2, the seal rings 6 can ensure good sealing performance at the joints between, thereby avoid inside external liquid enters the tool joint body 2, through the length setting with guard plate 7 than the length of tool joint body 2 is big to further protect tool joint body 2, make the connection between tool joint body 2 and drilling rod a1 and the drilling rod b3 more stable.
Further, sealing rings 6 are bonded to the left side surface and the right side surface of the drill rod joint body 2, and one side surface of each of the two sealing rings 6, which is opposite to the other side surface, is attached to one side surface of the drill rod a1 and one side surface of the drill rod b 3.
In this embodiment, the left side surface and the right side surface of the tool joint body 2 are both provided with the sealing rings 6, so that when the drill rod a1 and the drill rod b3 are connected through the tool joint body 2, the sealing rings 6 can ensure good sealing performance at the connection positions of the drill rod a1, the drill rod b3 and the tool joint body 2, thereby preventing external liquid from entering the tool joint body 2.
Further, the length of the protection plate 7 is larger than that of the drill rod joint body 2, and the inner surface of the protection plate 7 is attached to the outer surfaces of the drill rod a1 and the drill rod b 3.
In the embodiment, the length of the protection plate 7 is set to be larger than that of the drill rod joint body 2, so that the drill rod joint body 2 is further protected, and the connection between the drill rod joint body 2 and the drill rods a1 and b3 is more stable.
Further, the hydrophobic layer 8 is a hydrophobic coating film made of fluorocarbon wax.
In the embodiment, the hydrophobic layer 8 is arranged on the surface of the protection plate 7, so that moisture cannot be accumulated on the surface of the drill rod joint body 2 in the use process of the drill rod joint body 2, and the service life of the drill rod joint body 2 is prolonged.
Further, the reinforcing layer a9 is made of polytetrafluoroethylene obtained by polymerizing tetrafluoroethylene, and the reinforcing layer b10 is made of asbestos cloth.
In this embodiment, polytetrafluoroethylene has acid and alkali resistance and high temperature resistance characteristics, thereby can protect protection plate 7, avoid protection plate 7 to take place the phenomenon of damage in the use, enhancement layer b10 adopts the asbestos gauge simultaneously, the asbestos gauge has stronger high tensile strength, and then avoid in drilling operation the torsional force too big and lead to connecting unstably between drilling rod a1 and the drilling rod b3, thereby guaranteed that the connection of drilling rod joint body 2 between drilling rod a1 and the drilling rod b3 is more stable.
Further, the wear-resistant layer 11 is formed by smelting and sintering nickel-chromium alloy on the surface of the protection plate 7.
In this embodiment, by providing the wear-resistant layer 11, the protection plate 7 can be well protected, and the protection plate 7 is prevented from being damaged in the drilling operation.
The utility model discloses a theory of operation and use flow: the utility model discloses after having installed, when needs are connected drilling rod a1 and drilling rod b3, the workman possesses drilling rod a1 and drilling rod b3 the one end of internal thread 5 respectively just to the both ends of tool joint body 2, and rotate respectively and make drilling rod a1, drilling rod b3 is connected through tool joint body 2, sealing washer 6 can guarantee the good of junction leakproofness between drilling rod a1 and drilling rod b3 and the tool joint body 2 simultaneously, avoid external liquid to enter into tool joint body 2 inside, the setting of wearing layer 11 can be fine simultaneously protects guard plate 7, avoid guard plate 7 to take place wearing and tearing in drilling operation, and then protect tool joint body 2.
although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. An external thread tool joint, includes drilling rod a (1), tool joint body (2) and drilling rod b (3), its characterized in that: external screw thread (4) have all been seted up to the surface of both ends bulge about tool joint body (2), internal thread (5) have been seted up to the inner wall symmetry of the relative one end of drilling rod a (1) and drilling rod b (3), external screw thread (4) fixed connection through internal thread (5) and tool joint body (2) both ends respectively in drilling rod a (1) and drilling rod b (3), the outer surface welding of tool joint body (2) has guard plate (7), the outer surface coating of guard plate (7) has hydrophobic layer (8), a side bonding that guard plate (7) were kept away from in hydrophobic layer (8) has enhancement layer a (9), the surface bonding of enhancement layer a (9) has enhancement layer b (10), the side coating that enhancement layer a (9) were kept away from in enhancement layer b (10) has wearing layer (11).
2. The externally threaded drill pipe joint of claim 1, wherein: sealing rings (6) are bonded on the left side surface and the right side surface of the drill rod joint body (2), and one side surface of each of the two sealing rings (6), which is back to back, is attached to one side surface, opposite to the drill rod a (1) and the drill rod b (3), respectively.
3. The externally threaded drill pipe joint of claim 1, wherein: the length of the protection plate (7) is larger than that of the drill rod joint body (2), and the inner surface of the protection plate (7) is attached to the outer surfaces of the drill rods a (1) and the drill rods b (3) respectively.
4. The externally threaded drill pipe joint of claim 1, wherein: the hydrophobic layer (8) is a hydrophobic coating film made of fluorocarbon wax.
5. The externally threaded drill pipe joint of claim 1, wherein: the reinforcing layer a (9) is made of polytetrafluoroethylene prepared by polymerizing tetrafluoroethylene, and the reinforcing layer b (10) is made of asbestos gauze.
6. The externally threaded drill pipe joint of claim 1, wherein: the wear-resistant layer (11) is formed by smelting and sintering nickel-chromium alloy on the surface of the protection plate (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822182292.1U CN209780782U (en) | 2018-12-25 | 2018-12-25 | External thread tool joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822182292.1U CN209780782U (en) | 2018-12-25 | 2018-12-25 | External thread tool joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209780782U true CN209780782U (en) | 2019-12-13 |
Family
ID=68790586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822182292.1U Active CN209780782U (en) | 2018-12-25 | 2018-12-25 | External thread tool joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209780782U (en) |
-
2018
- 2018-12-25 CN CN201822182292.1U patent/CN209780782U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209780782U (en) | External thread tool joint | |
| US2450453A (en) | Double seal grip tool joint | |
| CN106312440A (en) | Friction welding repair method for hollow steel drill rod | |
| CN207648328U (en) | The elbow connection pipe part of monoblock type reduced pipe | |
| CN205936739U (en) | A cotton filter core for filter | |
| CN207297330U (en) | A kind of wear-resistant ceramic plunger | |
| CN205534782U (en) | Bao teshi high pressure activity elbow | |
| CN205823780U (en) | Coil wrapper roll hydraulic cylinder | |
| JP5776222B2 (en) | Threaded joints for steel pipes | |
| CN109695422B (en) | A kind of packer sealing connected pipes | |
| CN209514150U (en) | A kind of self-adapting seal structure of cable splice closure | |
| CN206346712U (en) | A kind of excellent high anti-twisting drill pipe joint of sealing property | |
| CN207739951U (en) | A kind of High-strength deepwater landing tool joint | |
| CN205172438U (en) | Roller bit's sealing device | |
| CN204754805U (en) | Connect pump pole to prevent inclined to one side grinder utensil | |
| CN206942724U (en) | Suitable for the colloid sealing shroud of HTHP | |
| CN211900503U (en) | Double-shoulder high-sealing threaded drill rod joint | |
| CN205956602U (en) | High temperature tube says compensation arrangement | |
| CN204922340U (en) | High abrasion extra -high voltage elbow | |
| CN103266859B (en) | Anti-bending dual-sealing visual repairable tool joint | |
| CN205172459U (en) | Oily casing coupling of antiseized knot anticorrosives | |
| CN104847279A (en) | Threadless casing string and casing running process | |
| CN106437551A (en) | High-torsion-resistance drill pipe connector with good sealing | |
| CN211144399U (en) | Oil drill pipe with super wear-resistant coating | |
| CN213685268U (en) | Sealing device for engineering machinery crawler belt pin bush and caterpillar track joint |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |