CN205297350U - From booster -type PDC drill bit - Google Patents
From booster -type PDC drill bit Download PDFInfo
- Publication number
- CN205297350U CN205297350U CN201521118014.XU CN201521118014U CN205297350U CN 205297350 U CN205297350 U CN 205297350U CN 201521118014 U CN201521118014 U CN 201521118014U CN 205297350 U CN205297350 U CN 205297350U
- Authority
- CN
- China
- Prior art keywords
- impeller
- drill bit
- runner
- mud
- high pressure
- 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.)
- Expired - Fee Related
Links
- 241000237509 Patinopecten sp. Species 0.000 claims abstract description 7
- 235000020637 scallop Nutrition 0.000 claims abstract description 7
- 239000002131 composite material Substances 0.000 claims description 7
- 238000005553 drilling Methods 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 2
- 230000006978 adaptation Effects 0.000 abstract 2
- 238000002347 injection Methods 0.000 abstract 1
- 239000007924 injection Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 2
- 238000009527 percussion Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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- Earth Drilling (AREA)
Abstract
From booster -type PDC drill bit relates to oilfield machine equipment, especially relates to the drill bit from the PDC of booster -type. Simple structure, convenient operation, effective pressure boost. The impeller is the column, the impeller is equipped with two helicla flutes on the circumference, the one end of impeller is equipped with protruding axle no. 1, other end shrinkage pool, be equipped with protruding axle no. 2 on the inner wall of bit body, establish protruding two adaptations on the axle in the shrinkage pool of impeller, poppet valve A disc -shaped, the poppet valve has the scallop hole of mesopore and equipartition, establish the protruding axle adaptation of impeller it is downthehole in the poppet valve. The poppet valve is fixed or swing joint is in in the mud runner. It is inside from the pressurized construction through mud and PDC drill bit, realized the high -pressure injection well drilling of drill bit, improved work efficiency, saved the cost.
Description
Technical field
The utility model relates to OFME, relates in particular to the PDC drill bit of auto-pressurizing.
Background technology
At present, the cardinal principle of domestic drill bit jet nozzle is: part high pressure, low pressure runner in PDC drill bit (being polycrystalline diamond compact bit), high and low pressure runner works independently. Wherein, high pressure runner is made up of high-pressure pump, pressure duct, mud, PDC drill bit and high pressure nozzle thereof etc.; Low pressure runner is made up of mud, PDC drill bit and plain nozzle thereof etc. Drilling mud sprays from bit nozzle by mud runner in drill bit, on bottom-hole cleaning cutting carring, returns ground.
In prior art, conventionally adopt and increase pressure piping and high-pressure pump, provide Double flow passage drilling bit to realize from supercharging, its complex structure, and need high-pressure pump that extra power is provided, increase cost burden.
Utility model content
The utility model, for above problem, provides a kind of simple in structure, handled easily, effectively the auto-pressurizing PDC drill bit of supercharging.
The technical solution of the utility model is: comprise joint, bit body and nozzle, described joint is fixedly connected on described bit body, and described joint and bit body are provided with the mud runner of connection, and described nozzle is located at the mud runner on described bit body;
Also comprise impeller, moushroom valve, high pressure nozzle and high pressure runner, described impeller and moushroom valve are connected in turn between the mud runner of described bit body and the mud runner of joint;
Described high pressure runner is located in described bit body, and described high pressure nozzle is located in described high pressure runner.
Described impeller is column, and described impeller is provided with two helicla flutes on circumference, and one end of described impeller is provided with protruding axle one, other end shrinkage pool;
The inwall of described bit body is provided with protruding axle two, and described protruding axle two is located in the shrinkage pool of described impeller adaptedly;
Described moushroom valve is in the form of annular discs, and described moushroom valve has mesopore and uniform scallop hole, and the protruding axle one of described impeller is located in the mesopore of described moushroom valve adaptedly.
Described moushroom valve is fixed or movable to be connected in described mud runner.
Described bit body external stability is provided with drill bit wing, on described drill bit wing, is embedded with composite sheet, and described high pressure nozzle is located at the rear end of composite sheet on described drill bit wing.
The utility model is in the time of work, and mud flow flows in two helicla flutes of impeller by the scallop hole on moushroom valve, and due to the percussion of mud, impeller rotates, simultaneously high pressure runner and the each mud runner in mud flow bit body.
The distribution of each nozzle flow channel in inner chamber plane is similar to evenly arranges, and when two helicla flutes of impeller are during just to nozzle flow channel, mud flows out from nozzle, and because sectional area diminishes, pressure increases, and has realized the effect from supercharging; Meanwhile, in the time that mud passes through high pressure nozzle runner, because the endoporus in high pressure nozzle is less, mud is by supercharging again, auxiliary rock.
The utility model by mud and PDC drill bit internal from pressurized construction, realized the high-pressure jet drilling of drill bit, improved operating efficiency, provide cost savings.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model,
Fig. 2 is the cutaway view of A-A face in Fig. 1,
Fig. 3 be in Fig. 2 C to structural representation,
Fig. 4 is the structural representation of moushroom valve in the utility model,
Fig. 5 is the right view of Fig. 4,
Fig. 6 is the structural representation of impeller in the utility model;
In figure, 1 is joint, the 2nd, and moushroom valve, the 21st, mesopore, the 22nd, scallop hole, the 3rd, impeller, the 31st, helicla flute, the 32nd, protruding axle one, 33rd, shrinkage pool, the 4th, bit body, the 40th, protruding axle two, 5th, sealing ring, the 6th, nozzle, the 7th, high pressure nozzle, the 8th, composite sheet, the 9th, drill bit wing;
In figure, arrow represents mud runner.
Detailed description of the invention
The utility model is as shown in Fig. 1-6, comprise joint 1, bit body 4 and nozzle 6, described joint 1 is fixedly connected on described bit body 4, described joint 1 and bit body 4 are provided with the mud runner of connection, described nozzle 6 is located at the mud runner on described bit body 4, between the mud runner on nozzle 6 and bit body 4, is provided with sealing ring 5;
Also comprise impeller 3, moushroom valve 2, high pressure nozzle 7 and high pressure runner, described impeller 3 and moushroom valve 2 are connected in turn between the mud runner of described bit body 4 and the mud runner of joint 1;
Described high pressure runner is located in described bit body 4, and described high pressure nozzle 7 is located in described high pressure runner.
The outer surface of high pressure nozzle is threaded, and the wounded in the battle groove of end face can screw or change with specific purpose tool, also can block with corresponding plug.
As shown in Figure 6, described impeller 3 is column, and described impeller 3 is provided with two helicla flutes 31 on circumference, and one end of described impeller 3 is provided with protruding axle 1, other end shrinkage pool 33;
The inwall of described bit body 4 is provided with protruding axle 2 40, and described protruding axle 2 40 is located in the shrinkage pool 33 of described impeller 3 adaptedly;
As shown in Fig. 4-5, described moushroom valve 2 is in the form of annular discs, and described moushroom valve 2 has mesopore 21 and uniform scallop hole 22, and the protruding axle 1 of described impeller 3 is located in the mesopore 21 of described moushroom valve 2 adaptedly. Improve the reliability that impeller is connected with moushroom valve.
Described moushroom valve 2 fixed or movable (being rotary) is connected in described mud runner; Make flexible movements reliable.
Described drill bit 4 external body are fixed with drill bit wing 9, on described drill bit wing 9, are embedded with composite sheet 8, and described high pressure nozzle 7 is located at the rear end of composite sheet 8 on described drill bit wing 9; Reach the working condition of abundant cooperation, assisted recombination sheet, increase work efficiency.
In work, the flow direction of mud as shown in Figure 2, flows in two helicla flutes of impeller by 3 scallop holes on moushroom valve, and due to the percussion of mud, impeller rotates with certain speed omega, simultaneously the plane in mud flow Fig. 3.
The distribution of each nozzle flow channel hole in inner chamber plane is similar to evenly arranges, and has dutycycle, and when two helicla flutes of impeller are during just to nozzle flow channel hole, mud flows out from nozzle bore, because sectional area diminishes, therefore pressure increases, has realized the effect from supercharging.
In the time that mud passes through high pressure nozzle runner, because the endoporus in high pressure nozzle is less, mud is by supercharging again, and auxiliary rock, increases work efficiency.
Claims (4)
1. auto-pressurizing PDC drill bit, comprises joint, bit body and nozzle, and described joint is fixedly connected on described bit body, and described joint and bit body are provided with the mud runner of connection, and described nozzle is located at the mud runner on described bit body;
It is characterized in that, also comprise impeller, moushroom valve, high pressure nozzle and high pressure runner, described impeller and moushroom valve are connected in turn between the mud runner of described bit body and the mud runner of joint;
Described high pressure runner is located in described bit body, and described high pressure nozzle is located in described high pressure runner.
2. auto-pressurizing PDC drill bit according to claim 1, is characterized in that, described impeller is column, and described impeller is provided with two helicla flutes on circumference, and one end of described impeller is provided with protruding axle one, other end shrinkage pool;
The inwall of described bit body is provided with protruding axle two, and described protruding axle two is located in the shrinkage pool of described impeller adaptedly;
Described moushroom valve is in the form of annular discs, and described moushroom valve has mesopore and uniform scallop hole, and the protruding axle one of described impeller is located in the mesopore of described moushroom valve adaptedly.
3. auto-pressurizing PDC drill bit according to claim 2, is characterized in that, described moushroom valve is fixed or movable to be connected in described mud runner.
4. auto-pressurizing PDC drill bit according to claim 1, is characterized in that, described bit body external stability is provided with drill bit wing, on described drill bit wing, is embedded with composite sheet, and described high pressure nozzle is located at the rear end of composite sheet on described drill bit wing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521118014.XU CN205297350U (en) | 2015-12-29 | 2015-12-29 | From booster -type PDC drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521118014.XU CN205297350U (en) | 2015-12-29 | 2015-12-29 | From booster -type PDC drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205297350U true CN205297350U (en) | 2016-06-08 |
Family
ID=56474491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521118014.XU Expired - Fee Related CN205297350U (en) | 2015-12-29 | 2015-12-29 | From booster -type PDC drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205297350U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952383A (en) * | 2016-07-04 | 2016-09-21 | 海斯比得（武汉）石油科技有限公司 | Drill bit, drilling tool and partial underbalance drilling method |
| CN106014266A (en) * | 2016-08-02 | 2016-10-12 | 西南石油大学 | Disc cutter type multiple drill bit suitable for hard-to-drill stratum |
| CN109915029A (en) * | 2019-04-23 | 2019-06-21 | 西南石油大学 | The PDC drill bit of multidirectional coupling fluidic oscillation |
-
2015
- 2015-12-29 CN CN201521118014.XU patent/CN205297350U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952383A (en) * | 2016-07-04 | 2016-09-21 | 海斯比得（武汉）石油科技有限公司 | Drill bit, drilling tool and partial underbalance drilling method |
| CN106014266A (en) * | 2016-08-02 | 2016-10-12 | 西南石油大学 | Disc cutter type multiple drill bit suitable for hard-to-drill stratum |
| CN106014266B (en) * | 2016-08-02 | 2019-05-10 | 西南石油大学 | A kind of dise knife formula composite drill bit suitable for bad ground |
| CN109915029A (en) * | 2019-04-23 | 2019-06-21 | 西南石油大学 | The PDC drill bit of multidirectional coupling fluidic oscillation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160608 |