CN202578616U - Adjustable orifice sealing device for geological drilling - Google Patents
Adjustable orifice sealing device for geological drilling Download PDFInfo
- Publication number
- CN202578616U CN202578616U CN 201220163706 CN201220163706U CN202578616U CN 202578616 U CN202578616 U CN 202578616U CN 201220163706 CN201220163706 CN 201220163706 CN 201220163706 U CN201220163706 U CN 201220163706U CN 202578616 U CN202578616 U CN 202578616U
- Authority
- CN
- China
- Prior art keywords
- sealing device
- platen
- orifice
- bearing ring
- pressure plate
- 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
- 238000007789 sealing Methods 0.000 title claims abstract description 44
- 238000005553 drilling Methods 0.000 title claims abstract description 33
- 230000000875 corresponding Effects 0.000 claims description 3
- 230000002265 prevention Effects 0.000 abstract description 3
- 238000003754 machining Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 101700078171 KNTC1 Proteins 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 229910000926 A-3 tool steel Inorganic materials 0.000 description 1
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Abstract
The utility model relates to an adjustable orifice sealing device for geological drilling, which consists of a central tube, an upper pressure plate, a pressure bearing ring, a sealing ring, a lower pressure plate and locking bolts, wherein both the upper end and the lower end of the central tube are connected with a drill stem; the pressure bearing ring is welded on the central tube; the upper pressure plate and the lower pressure plate are fixed on the pressure bearing ring through the locking bolts; external diameter of the sealing ring and inside diameter of an orifice tube are consistently mounted in an annular space in the middle of the upper pressure plate and the lower pressure plate; and the upper end and the lower end of the orifice sealing device are connected with the drill stem and then are disposed in the orifice tube to realize sealing. The adjustable orifice sealing device for geological drilling provided by the utility model can seal an annular space between the orifice tube and the drill stem conveniently, thus realizing pressure leakage stoppage; and synchronously, the adjustable orifice sealing device is functional in pressure maintaining, righting, blowout prevention, orifice wall stability maintaining and the like, in this way, the sealing device can increase drilling efficiency and effectively reducing drilling cost. In addition, the sealing device disclosed by the utility model is simple in structure, convenient in machining, low in cost, long in service life, and available for long-term reuse.
Description
Affiliated technical field
The utility model relates to a kind of geological drilling and uses the adjustable port sealing device, is applicable to the boring upkeep operations such as pressure leak stopping in the geological drilling construction.
Background technology
In geological drilling, drilling fluid leakage is an a kind of difficult problem of common puzzlement unit in charge of construction.In the leak stopping process, have only loss circulation material is effectively clamp-oned in the leakage stratum, could realize fast blockage, and improve the intensity of plugged zone.Therefore, in the hole, apply certain pressure and carry out the pressure leak stopping, help loss circulation material effectively to get into the leakage stratum rapidly, realize fast blockage.In the oil well probing, can realize this process of pressure leak stopping through sealing devices such as preventer or aperture throttling arrangements; But in geological drilling, the aperture generally is open, does not have similar sealing device, therefore can't carry out the pressure leak stopping.
Summary of the invention
In order to overcome in the current geological drilling technical problem that can't carry out the pressure plugging operations because of no port seal; The utility model provides a kind of geological drilling to use the adjustable port sealing device; This port seal is the annulus between closed orifices pipe and drilling rod more easily, satisfy geological drilling and carry out the requirement of pressure plugging operations, and have pressurize, set upright, effect such as blowout prevention, maintenance hole wall are stable; Can improve drilling efficiency, effectively reduce drilling cost.
The utility model solves the technical scheme that its technical problem adopted: a kind of geological drilling is made up of central tube, last platen, bearing ring, sealing ring, following platen, lock bolt with the adjustable port sealing device; Lower end, said central tube upper end all can be connected with drilling rod; Bearing ring is welded on the central tube; Last platen and following platen are fixed on the bearing ring with lock bolt, and the sealing ring external diameter is consistent with the orifice tube internal diameter to be installed in the annular space of platen and following platen centre.Be lowered in the orifice tube behind port seal upper end, the lower end jointed rod, form sealing between sealing ring and the orifice tube.Last platen, down platen, annulus, central tube can be selected A3 steel or 45# steel for use, accomplish through working procedure processing such as forging, car, sharp, brill, planes; Sealing ring can be processed with rubber and resin elastomeric material, and its external diameter is consistent with the orifice tube internal diameter, and outward flange adopts fillet structure, conveniently is lowered in the orifice tube, and can changes the sealing ring of corresponding external diameter according to the difference of orifice tube internal diameter.
The beneficial effect of the utility model is to use the adjustable port sealing device for geological drilling provides a kind of geological drilling; Annulus between closed orifices pipe and drilling rod more easily; Realize the pressure plugging operations; Effects such as having pressurize simultaneously, set upright, blowout prevention, maintenance hole wall are stable can improve drilling efficiency, effectively reduces drilling cost.In addition, the utility model is simple in structure, easy to process, cost is low, the life-span is long, can reuse for a long time.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Fig. 1 is the utility model application principle figure.
Fig. 2 is the utility model elevation.
Fig. 3 is the utility model B-B sectional drawing.
Fig. 4 is the utility model vertical view.
Fig. 5 is the utility model A-A sectional drawing.
1. top rods among Fig. 1,2. orifice tube, 3. adjustable port sealing device, 4. bottom drilling rod; 5. central tubes among Fig. 2,6. lock bolt is 7. gone up platen, and 8. sealing ring 10. descends platen; 5. central tubes among Fig. 3,6. lock bolt is 7. gone up platen, 8. sealing ring, 9. bearing ring 10. descends platen; 5. central tubes among Fig. 4,6. lock bolt is 7. gone up platen, 8. sealing ring; 5. central tubes among Fig. 5,6. lock bolt, 8. sealing ring, 9. bearing ring.
The specific embodiment
In Fig. 1, port seal 3 upper ends connect top rod 1, and port seal 3 lower ends connect bottom drilling rod 4, are lowered in the orifice tube 2, and port seal 3 forms sealing with orifice tube 2.
In Fig. 3; Central tube 5 upper ends, lower end all are processed with the trapezoidal thread button and are used to connect top rod 1 and bottom drilling rod 4; Be processed with 6 through holes respectively on bearing ring 9, last platen 7, the following platen 10; Bearing ring 9 is welded on the central tube 5, and last platen 7, platen 10 is installed on the bearing ring 9 through lock bolt 6 down, and sealing ring 8 is installed in the annular space of platen 7 and following platen 10 centres.
In Fig. 5; Bearing ring 9 is welded on the central tube 5, is processed with 6 through holes on the bearing ring 9, and last platen 7, platen 10 will be installed on the bearing ring 9 through lock bolt 6 down; Sealing ring 8 internal diameters are consistent with bearing ring 9 external diameters, can change the sealing ring 8 of corresponding external diameter according to the difference of orifice tube 2 internal diameters.
When application the utility model adjustable port sealing device 3 carries out the pressure plugging operations; Adjustable port sealing device 3 upper ends are connected top rod 1; The lower end connects bottom drilling rod 4; Be lowered to and form sealing in the orifice tube 2, leakage-stop liquid and drilling fluid are pumped in the hole termination of pumping pressurize after reaching design pressure through slush pump.Because the utility model port seal has sealing function, can make long period maintenance certain pressure in the hole, loss circulation material is pressed into the leakage stratum, realize the pressure plugging operations.
More than be the preferred embodiment of the utility model, every change of being made according to the utility model technical scheme when the function that is produced does not exceed the scope of the utility model technical scheme, all belongs to the protection domain of the utility model.
Claims (3)
1. a geological drilling is used the adjustable port sealing device, by central tube (5), and lock bolt (6); Last platen (7); Sealing ring (8), bearing ring (9), following platen (10) is formed; It is characterized in that lower end, central tube (5) upper end all can be connected with drilling rod; Bearing ring (9) is welded on the central tube (5), and last platen (7) and following platen (10) are fixed on the bearing ring (9) with lock bolt (6), and sealing ring (8) external diameter is consistent with orifice tube (2) internal diameter to be installed in the annular space of platen (7) and following platen (10) centre.
2. a kind of geological drilling according to claim 1 is used the adjustable port sealing device; It is characterized in that bearing ring (9), go up platen (7), be processed with 6 through holes respectively on the platen (10) down; Bearing ring (9) is welded on the central tube (5), and last platen (7), following platen (10) are installed on the bearing ring (9) through lock bolt (6).
3. a kind of geological drilling according to claim 1 is used the adjustable port sealing device; It is characterized in that sealing ring (8) is installed in the annular space of platen (7) and following platen (10) centre; Sealing ring (8) internal diameter is consistent with bearing ring (9) external diameter, can change the sealing ring (8) of corresponding external diameter according to the difference of orifice tube (2) internal diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220163706 CN202578616U (en) | 2012-04-18 | 2012-04-18 | Adjustable orifice sealing device for geological drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220163706 CN202578616U (en) | 2012-04-18 | 2012-04-18 | Adjustable orifice sealing device for geological drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202578616U true CN202578616U (en) | 2012-12-05 |
Family
ID=47248037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220163706 Expired - Fee Related CN202578616U (en) | 2012-04-18 | 2012-04-18 | Adjustable orifice sealing device for geological drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202578616U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106089142A (en) * | 2016-04-27 | 2016-11-09 | 中国石油化工股份有限公司 | A kind of casing hanger sealing device |
| CN109025823A (en) * | 2018-08-02 | 2018-12-18 | 中国海洋石油集团有限公司 | The countermeasure of deepwater drilling operation generation leakage |
| CN109731488A (en) * | 2019-02-26 | 2019-05-10 | 江苏秋泓环境检测有限公司 | Sealed filtering flask for foul smell dilution device |
-
2012
- 2012-04-18 CN CN 201220163706 patent/CN202578616U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106089142A (en) * | 2016-04-27 | 2016-11-09 | 中国石油化工股份有限公司 | A kind of casing hanger sealing device |
| CN109025823A (en) * | 2018-08-02 | 2018-12-18 | 中国海洋石油集团有限公司 | The countermeasure of deepwater drilling operation generation leakage |
| CN109731488A (en) * | 2019-02-26 | 2019-05-10 | 江苏秋泓环境检测有限公司 | Sealed filtering flask for foul smell dilution device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121205 Termination date: 20140418 |