CN208845122U - Tensioner connecting-type stone oil drill collar - Google Patents
Tensioner connecting-type stone oil drill collar Download PDFInfo
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- CN208845122U CN208845122U CN201821499305.1U CN201821499305U CN208845122U CN 208845122 U CN208845122 U CN 208845122U CN 201821499305 U CN201821499305 U CN 201821499305U CN 208845122 U CN208845122 U CN 208845122U
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- drill collar
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Abstract
A kind of tensioner connecting-type stone oil drill collar, including drill collar ontology；The mud hole coaxial with drill collar ontology is equipped in drill collar ontology；The tail end of drill collar ontology is connected with drilling rod connection structure；Drilling rod connection structure is cylindricality, and external screw thread is equipped on cylindrical outer wall.It further include tensioner connection structure；Tensioner connection structure is that radial through-hole is provided on external thread structure, and pin, pressure spring and pin end socket are connected in radial through-hole；Radial through-hole is divided into interconnected inside and outside two sections, and pin end socket spiral is connected to radial through-hole outer segment, and the centre of pin end socket is provided with pin hole；The outer diameter of larger one end of pin is identical as the internal diameter of radial through-hole outer segment, and the outer diameter of smaller one end of pin is not more than the internal diameter of pin hole；The length of pin is not more than the depth of radial through-hole outer segment；Pressure spring described in smaller one end housing of pin；The boss of the circular platform type of multiple nylon materials is furnished on the end face of smaller one end of pin.The utility model uses new thinking, keeps the structure of drill collar and drilling rod more firm.
Description
Technical field
The utility model belongs to oil extraction technical field, specifically a kind of tensioner connecting-type stone oil drill collar.
Background technique
Drilling rod is to bore mill equipment or bottom outlet device for connecting drilling machine landscape apparatus and being located at drilling well bottom end.The purposes of drilling rod
It is drilling mud to be transported to drill bit, and bottom outlet device is improved, reduced or rotated together with drill bit.In the exploitation and refinement of oil gas
In the process, drilling rod can be used for multiple times.In general, drilling rod is divided into kelly bar, drilling rod and heavy weight drill pipe three classes, their connection order are
Kelly bar (1)+drilling rod (n root, determined by well depth)+heavy weight drill pipe (n root, determined by hole assembly design).In heavy weight drill pipe
Be also connected with drill collar between drill bit, drilling rod is mainly passing movement and power, drill collar than drilling rod be intensity more greatly, directly drive
Bit operation.
The connection type of drill collar and drilling rod is to be threaded in drilling rod end, which forms standard.Actually make
Situation is loosened with the link position in the process, still having small probability.For this purpose, there are also drilling rods using between screw thread teeth
Non-return structure, still, since drilling rod also needs to remove by root, so, non-return structure increases the difficulty of drilling rod dismounting, or even makes
At the damage of drilling rod spiral link structure.
Summary of the invention
By analysis, it stays between the reason of link position the loosens mainly teeth of internal and external threads with gap, these are empty
Gap is assembly technology gap, is essential.But the vibration etc. in operation process, these gaps can be allowed to become connection
The main reason of loosening.
To solve the above-mentioned problems, the utility model proposes a kind of new stone oil drill collar, concrete scheme is as follows:
A kind of tensioner connecting-type stone oil drill collar, including drill collar ontology；It is equipped in drill collar ontology coaxial with drill collar ontology
Mud hole；The head end of drill collar ontology is connected with drill bit connection structure, and the tail end of drill collar ontology is connected with drilling rod connection structure；Drilling rod
Connection structure is cylindricality, and first through hole is provided in cylindricality, and first through hole is connected to mud hole, and outer spiral shell is equipped on cylindrical outer wall
Line, it is characterized in that further including tensioner connection structure；
Tensioner connection structure is that radial through-hole is provided on external thread structure, and pin, pressure spring are connected in radial through-hole
With pin end socket；Radial through-hole is divided into interconnected inside and outside two sections, and what it is close to first through hole is radial through-hole inner segment, radial logical
The internal diameter of hole inner segment is less than the internal diameter of radial through-hole outer segment；The outer diameter of the pressure spring is identical as the internal diameter of radial through-hole outer segment；Institute
It states pin end socket spiral and is connected to radial through-hole outer segment, the centre of pin end socket is provided with pin hole；The axial cross section of the pin is
T-shaped, the outer diameter of larger one end of pin is identical as the internal diameter of radial through-hole outer segment, and the outer diameter of smaller one end of pin is little
In the internal diameter of pin hole；The length of pin is not more than the depth of radial through-hole outer segment；Pressure spring described in smaller one end housing of pin；Pin
Be furnished with the boss of the circular platform type of multiple nylon materials on the end face of smaller one end of column, each boss at array, boss it is smaller
One facing towards outside radial through-hole；
The outer surface of the pin end socket is in radial through-hole.
The principle of this drill collar is, in operation, pressure is transmitted to pin by radial through-hole by mud, and pin ejection is convex
Platform resists the internal screw thread of drilling rod link position.When boss has abrasion, under the action of mud pressure, pin continues overhanging resist
The internal screw thread of drilling rod.When stopping operation, mud loses pressure, then pressure spring resets pin, and the internal screw thread of drilling rod is detached from limit shape
State.
Further, the material of the pin is nylon, and each boss and pin are integral structures.The structure is easy to entirety more
Change pin.Nylon material is the polyurethane that can be used for nylon sleeve, which is less than drilling rod link position internal screw thread material
Hardness, will not internal threads bring loss.
Further, the outer surface of the pin end socket is equipped with interior hexagon indent.Convenient for using allen wrench operation.
Further, screw glue is coated between the pin end socket and radial through-hole.Fasten pin end socket and radial through-hole.
Further, the tensioner connection structure has identical multiple.The tensioner effect of multiple tensioner connection structures is preferable.?
On axis projection, tensioner connection structure surrounds the axisymmetrical in mud hole.
The utility model uses new thinking, keeps the structure of drill collar and drilling rod more firm.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of this stone oil drill collar；
Fig. 2 is the partial structural diagram of tensioner connection structure；
Fig. 3 is the end view of smaller one end of pin；
In figure: drill collar ontology 1, mud hole 2, drilling rod connection structure 3, tensioner connection structure 4, first through hole 5, radial through-hole
6, pin 7, pressure spring 8, pin end socket 9, pin hole 10, boss 11.
Specific embodiment
This case is further illustrated with specific embodiment with reference to the accompanying drawing:
Such as Fig. 1,2 and 3, a kind of tensioner connecting-type stone oil drill collar, including drill collar ontology；It is equipped in drill collar ontology and drill collar
The coaxial mud hole of ontology；The head end of drill collar ontology is connected with drill bit connection structure, and the tail end of drill collar ontology is connected with drilling rod company
Binding structure；Drilling rod connection structure is cylindricality, and first through hole is provided in cylindricality, and first through hole is connected to mud hole, cylindrical outer
Wall is equipped with external screw thread.It further include tensioner connection structure；
Tensioner connection structure is that radial through-hole is provided on external thread structure, and pin, pressure spring are connected in radial through-hole
With pin end socket；Radial through-hole is divided into interconnected inside and outside two sections, and what it is close to first through hole is radial through-hole inner segment, radial logical
The internal diameter of hole inner segment is less than the internal diameter of radial through-hole outer segment；The outer diameter of the pressure spring is identical as the internal diameter of radial through-hole outer segment；Institute
It states pin end socket spiral and is connected to radial through-hole outer segment, the centre of pin end socket is provided with pin hole；The axial cross section of the pin is
T-shaped, the outer diameter of larger one end of pin is identical as the internal diameter of radial through-hole outer segment, and the outer diameter of smaller one end of pin is little
In the internal diameter of pin hole；The length of pin is not more than the depth of radial through-hole outer segment；Pressure spring described in smaller one end housing of pin；Pin
Be furnished with the boss of the circular platform type of multiple nylon materials on the end face of smaller one end of column, each boss at array, boss it is smaller
One facing towards outside radial through-hole；The outer surface of the pin end socket is in radial through-hole.
The material of the pin is nylon, and each boss and pin are integral structures.The outer surface of the pin end socket is set
There is interior hexagon indent.Screw glue is coated between the pin end socket and radial through-hole.The tensioner connection structure has identical
It is multiple.The tensioner effect of multiple tensioner connection structures is preferable.On axis projection, tensioner connection structure surrounds the axis in mud hole
Symmetrically.
Claims (5)
1. a kind of tensioner connecting-type stone oil drill collar, including drill collar ontology；The mud coaxial with drill collar ontology is equipped in drill collar ontology
Starch hole；The head end of drill collar ontology is connected with drill bit connection structure, and the tail end of drill collar ontology is connected with drilling rod connection structure；Drilling rod connects
Binding structure is cylindricality, and first through hole is provided in cylindricality, and first through hole is connected to mud hole, and outer spiral shell is equipped on cylindrical outer wall
Line, it is characterized in that further including tensioner connection structure；
Tensioner connection structure is that radial through-hole is provided on external thread structure, and pin, pressure spring and pin are connected in radial through-hole
Column end socket；Radial through-hole is divided into interconnected inside and outside two sections, and what it is close to first through hole is radial through-hole inner segment, in radial through-hole
The internal diameter of section is less than the internal diameter of radial through-hole outer segment；The outer diameter of the pressure spring is identical as the internal diameter of radial through-hole outer segment；The pin
Column end socket spiral is connected to radial through-hole outer segment, and the centre of pin end socket is provided with pin hole；The axial cross section of the pin is " T " word
The outer diameter of shape, larger one end of pin is identical as the internal diameter of radial through-hole outer segment, and the outer diameter of smaller one end of pin is not more than pin
The internal diameter in hole；The length of pin is not more than the depth of radial through-hole outer segment；Pressure spring described in smaller one end housing of pin；Pin
The boss of the circular platform type of multiple nylon materials is furnished on the end face of smaller one end, each boss is at array, the smaller one side of boss
Towards outside radial through-hole；The outer surface of the pin end socket is in radial through-hole.
2. stone oil drill collar according to claim 1, it is characterized in that the material of the pin is nylon, each boss and pin
It is integral structure.
3. stone oil drill collar according to claim 1, it is characterized in that the outer surface of the pin end socket is equipped in interior hexagon
It is recessed.
4. stone oil drill collar according to claim 1, it is characterized in that being coated with screw between the pin end socket and radial through-hole
Glue.
5. stone oil drill collar according to claim 1, it is characterized in that the tensioner connection structure have it is identical multiple.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821499305.1U CN208845122U (en) | 2018-09-13 | 2018-09-13 | Tensioner connecting-type stone oil drill collar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821499305.1U CN208845122U (en) | 2018-09-13 | 2018-09-13 | Tensioner connecting-type stone oil drill collar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208845122U true CN208845122U (en) | 2019-05-10 |
Family
ID=66372884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821499305.1U Active CN208845122U (en) | 2018-09-13 | 2018-09-13 | Tensioner connecting-type stone oil drill collar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208845122U (en) |
-
2018
- 2018-09-13 CN CN201821499305.1U patent/CN208845122U/en active Active
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