CN201024896Y - Well fixing tool for bushing artesian well bottom - Google Patents
Well fixing tool for bushing artesian well bottom Download PDFInfo
- Publication number
- CN201024896Y CN201024896Y CNU2006200118644U CN200620011864U CN201024896Y CN 201024896 Y CN201024896 Y CN 201024896Y CN U2006200118644 U CNU2006200118644 U CN U2006200118644U CN 200620011864 U CN200620011864 U CN 200620011864U CN 201024896 Y CN201024896 Y CN 201024896Y
- Authority
- CN
- China
- Prior art keywords
- main body
- well
- sealing ring
- screw thread
- utility
- 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
- 238000005553 drilling Methods 0.000 claims abstract description 21
- 238000007789 sealing Methods 0.000 claims abstract description 15
- 239000007788 liquid Substances 0.000 abstract description 4
- 230000009191 jumping Effects 0.000 abstract 1
- 241000282472 Canis lupus familiaris Species 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The utility model relates to a sleeve well drilling underground well cementing device, comprising a main body, a jacket, a lock block, a lock pin, a sealing ring, a transfer connector, a ball basket and a sealing ball. The lock block is fixed with the main body through the lock pin. The main body is provided with the sealing ring and is connected with the transfer connector through a screw thread. The transfer connector is fixed with the ball basket through the screw thread, and the sealing ball is arranged inside the ball basket. When in sleeve well drilling well cementing operation, the utility model is put into the sleeve post; a pump is started to circulate the well cementing liquid; a solution rubber plug is sealed on the upper end of the main body; the sealing ring gets back to the top when the pump is stopped; the lock block is locked with the jacket in the effect of a spring to prevent the utility model from jumping upwards and to satisfy the demand of opening the well mouth. The utility model has the advantages of safe and reliable and easy operation.
Description
Technical field
The utility model relates to a kind of casing drilling shaft bottom cementing tool, it comprises main body, overcoat, lock dog, lock pin, sealing ring, transit joint, cage and ball sealer, lock dog is fixed together by lock pin and main body, main body and transit joint are by being threaded, transit joint and cage are fixed by screw thread, ball sealer is contained in the cage, sealing ring is housed on the main body and fixes by screw thread with transit joint.
Background technology
Utilize sleeve pipe to replace drilling rod to make drill string at present to drill bit transfer torque and conveying liquid energy, below sleeve pipe, connect the drillable drill bit, after finishing drillng operation, a drill bit carries out well cementing operation, if need to continue to the deep drillng operation, then the drillable bit drills is fallen to continue to creep into, but owing to the life-span of drill bit is limit, this kind casing drilling mode is only applicable to surface pipe, can't realize for the middle-deep well operation, because in drilling process, need more bit change, after finishing, drillng operation needs to carry out well cementing operation.
The utility model content
The technical problems to be solved in the utility model provides a kind of casing drilling shaft bottom cementing tool, carries out well cementing operation after drillng operation finishes.
For solving the problems of the technologies described above, the utility model casing drilling shaft bottom cementing tool comprises main body, overcoat, lock dog, lock pin, sealing ring, transit joint, cage and ball sealer, lock dog is fixed together by lock pin and main body, be equipped with on the main body sealing ring and with transit joint by being threaded.Transit joint and cage are fixed by screw thread, and ball sealer is contained in the cage.Have the slotted hole of tap hole and dress lock dog on the main body, the below of main body is provided with the bright and clean face of cylinder of assembling sealing ring, and the lower end is provided with screw thread and central through hole.Lock dog is made as ratchet shape, and the upper end is the plane, and the outside is an arc, and the lower end is for semicircle and be provided with lockpin hole.Cage is the cylinder that side, bottom surface are provided with a plurality of circular holes, and the upper end is provided with screw thread.
The utility model is when carrying out the casing drilling well cementing operation, casing drilling shaft bottom cementing tool is dropped in the casing string, turn on pump circulation well cementation liquid, be enclosed in the main body upper end for the slurry plug, ball sealer returns back to top after the termination of pumping, and lock dog locks together with overcoat under the effect of spring, play the effect of wearing on the cementing tool of casing drilling shaft bottom that stops, satisfy and open wide the requirement that the well head time is coagulated, easy to operate, safe and reliable.
Description of drawings
Fig. 1. casing drilling shaft bottom cementing tool schematic diagram
1. main body 2. overcoats 3. lock dogs 4. lock pins 5. sealing rings 6. transit joints 7. cages 8. ball sealers
The specific embodiment
Now the utility model will be further described in conjunction with Figure of description.
When adopting the utility model to carry out the casing drilling well cementing operation, lock dog 3 is fixed together by lock pin 4 and main body 1, main body 1 and transit joint 6 are by being threaded, transit joint 6 and cage 7 are fixed by screw thread, ball sealer 8 is free movable in cage 7, be equipped with on the main body 1 sealing ring 5 and with transit joint 6 by being threaded.When carrying out the casing drilling well cementing operation, casing drilling shaft bottom cementing tool is dropped in the casing string, turn on pump circulation well cementation liquid, be enclosed in the main body upper end for the slurry plug, ball sealer returns back to top after the termination of pumping, lock dog 3 locks together with overcoat 2 under the effect of spring, plays to stop the effect of wearing on the cementing tool of casing drilling shaft bottom, satisfies and opens wide the requirement that the well head time is coagulated.
Claims (4)
1. casing drilling shaft bottom cementing tool comprises main body (1), overcoat (2), lock dog (3), lock pin (4), sealing ring (5), transit joint (6), cage (7) and ball sealer (8), it is characterized in that: lock dog (3) is fixed together by lock pin (4) and main body (1), be equipped with on the main body (1) sealing ring (5) and with transit joint (6) by being threaded, transit joint (6) is fixed by screw thread with cage (7), and ball sealer (8) is contained in the cage (7).
2. according to the described casing drilling of claim 1 shaft bottom cementing tool, it is characterized in that: the slotted hole that has tap hole and dress lock dog (3) on the described main body (1), the below of main body (1) is provided with the bright and clean face of cylinder of assembling sealing ring, and the lower end is provided with screw thread and central through hole.
3. according to the described casing drilling of claim 1 shaft bottom cementing tool, it is characterized in that: described lock dog (3) is ratchet shape, and the upper end is the plane, and the outside is an arc, and the lower end is for semicircle and be provided with lockpin hole.
4. according to the described casing drilling of claim 1 shaft bottom cementing tool, it is characterized in that: described cage (7) is the cylinder that side, bottom surface are provided with a plurality of circular holes, and the upper end is provided with screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200118644U CN201024896Y (en) | 2006-11-29 | 2006-11-29 | Well fixing tool for bushing artesian well bottom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200118644U CN201024896Y (en) | 2006-11-29 | 2006-11-29 | Well fixing tool for bushing artesian well bottom |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201024896Y true CN201024896Y (en) | 2008-02-20 |
Family
ID=39098752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200118644U Expired - Fee Related CN201024896Y (en) | 2006-11-29 | 2006-11-29 | Well fixing tool for bushing artesian well bottom |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201024896Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102787841A (en) * | 2011-05-19 | 2012-11-21 | 韦特柯格雷公司 | Tubing hanger setting confirmation system |
-
2006
- 2006-11-29 CN CNU2006200118644U patent/CN201024896Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102787841A (en) * | 2011-05-19 | 2012-11-21 | 韦特柯格雷公司 | Tubing hanger setting confirmation system |
| US10077622B2 (en) | 2011-05-19 | 2018-09-18 | Vetco Gray, LLC | Tubing hanger setting confirmation system |
| US10689936B2 (en) | 2011-05-19 | 2020-06-23 | Vetco Gray, LLC | Tubing hanger setting confirmation system |
| US10711554B2 (en) | 2011-05-19 | 2020-07-14 | Vetco Gray Inc. | Tubing hanger setting confirmation system |
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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: 20080220 Termination date: 20091229 |