CN204960850U - Flat-bottom grinding shoe for drilling and grinding continuous oil pipe - Google Patents
Flat-bottom grinding shoe for drilling and grinding continuous oil pipe Download PDFInfo
- Publication number
- CN204960850U CN204960850U CN201520735551.2U CN201520735551U CN204960850U CN 204960850 U CN204960850 U CN 204960850U CN 201520735551 U CN201520735551 U CN 201520735551U CN 204960850 U CN204960850 U CN 204960850U
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- mill body
- junk mill
- junk
- flat
- passageway
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- 238000005553 drilling Methods 0.000 title 1
- 239000007788 liquid Substances 0.000 claims abstract description 15
- 239000000956 alloy Substances 0.000 claims description 19
- 229910045601 alloy Inorganic materials 0.000 claims description 19
- 230000007704 transition Effects 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 6
- 230000001174 ascending effect Effects 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000008014 freezing Effects 0.000 description 3
- 238000007710 freezing Methods 0.000 description 3
- 241001074085 Scophthalmus aquosus Species 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 239000012224 working solution Substances 0.000 description 2
- 239000004568 cement Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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- Crushing And Grinding (AREA)
Abstract
The utility model discloses a continuous oil pipe bores and grinds uses flat junk mill, including the junk mill body, junk mill body upper end is provided with the top connection, is provided with carbide on the lower extreme terminal surface, and junk mill body inner chamber forms central water hole, and central water hole upper end link up the junk mill body, and the lower extreme seals, and junk mill body side is provided with the direction upwards and with the side water hole of central water hole intercommunication, radially is provided with the passageway on the carbide terminal surface, is provided with the bottom water hole with central water hole intercommunication in the passageway on the carbide, corresponds on the junk mill body outer wall and is provided with the ascending passageway of direction, passageway on the carbide and the passageway intercommunication formation liquid circulation passageway on the junk mill body outer wall. The utility model discloses can realize the bridge plug and bore fast and grind in vertical well, highly deviated well or horizontal well to return discharge ground rapidly with the piece, ensure that the pit shaft is unblocked.
Description
Technical field
The utility model relates to a kind of continuous tubing drill mill flat-bottom grind shoes, belongs to industrial gas oil underground construction technical field.
Background technology
Can bore bridging plug due to the feature that its volume is little, quality is light, packing is effective, easy brill removes is widely used in extensive multistage pressure break reservoir reconstruction, and realize bridging plug quick drill except so that carrying out various oil test operation is continuous tubing drill mill operation one mainly application, become the important supporting technology can boring bridging plug.
How to realize quick drill mill bridging plug and chip efficiently returned discharging the key factor that ground is the consideration of design junk mill needs.Such as, a kind of underground work junk mill disclosed in China Patent Publication No. 203867505U, its publication date is 2014-10-08.But existing junk mill design biases toward how to improve bores mill efficiency, often ignore and return bits ability, and the latter is the key that bridging plug bores mill technology, because easily form out-of-shape after bridging plug bores mill, the uneven chip of particle diameter, will be deposited in around coiled tubing cause bit freezing if can not be recycled out ground in time.So existing junk mill, junk mill cannot be met can realize bridging plug quick drill mill in straight well, high angle hole or horizontal well, and chip be returned rapidly the instructions for use of discharging ground, cannot guarantee that pit shaft is unimpeded.
Summary of the invention
The purpose of this utility model is the problems referred to above overcoming prior art existence, provides a kind of continuous tubing drill mill flat-bottom grind shoes.The utility model can realize bridging plug quick drill mill in straight well, high angle hole or horizontal well, and chip is returned rapidly discharge ground, guarantees that pit shaft is unimpeded.
For achieving the above object, the technical solution adopted in the utility model is as follows:
A kind of continuous tubing drill mill flat-bottom grind shoes, comprise junk mill body, it is characterized in that: described junk mill body upper end is provided with top connection, lower end surface is provided with carbide alloy, junk mill chamber body forms central ports, the through junk mill body in central ports upper end, lower end closed, junk mill body side is provided with the side hydrophthalmia that direction upwards and with central ports is communicated with, carbide alloy end face has been disposed radially passage, the bottom hydrophthalmia be communicated with central ports is provided with in passage on carbide alloy, on junk mill body outer wall, correspondence is provided with direction passage upwards, channel connection on passage on carbide alloy and junk mill body outer wall forms liquid circulation channel.
Described liquid circulation channel is uniformly distributed and is set to five, and bottom hydrophthalmia correspondence is evenly set to five.
Described top connection and junk mill body are integral type structure or split-type structural.
When described top connection and junk mill body are integral type structure, junk mill body upper part is top connection, and mid diameter is less than lower diameter, and middle part and bottom are by the transition of chamfered transition section.
Described side hydrophthalmia is three, is arranged in chamfered transition section.
Described three side hydrophthalmias between any two angle are 72 °, 144 ° and 144 °.
Described liquid circulation channel extends to chamfered transition section from junk mill body lower part.
Described carbide reactor is welded on junk mill body lower end surface.
Employing the utility model has the advantage of:
1, the utility model can realize bridging plug quick drill mill in straight well, high angle hole or horizontal well, and chip is returned rapidly discharge ground, guarantees that pit shaft is unimpeded.
2, the utility model is at junk mill body bottom portion pile-up welding hard alloy, side effectively solves the problem of present junk mill solids-carrying capacity difference with 3 side hydrophthalmias, help bridging plug chip returns out pit shaft when hydrophthalmia on rear side of bridging plug is grated can spray high-velocity flow manufacture turbulent flow, prevent sand setting bit freezing; Side is uniformly distributed 5 liquid circulation channels in addition, can ensure the abundant circulation of boring mill working solution, improve it and take grittiness.
3, the utility model patent principle clear, be skillfully constructed, structure is simple, volume is little, efficiency is high, strong adaptability, safe and reliable, the brill mill, the cement plug that are applicable to composite bridge plug bore mill etc., and mill operation is bored in the coiled tubing down-hole that can be widely used under all kinds and condition.
Accompanying drawing explanation
Fig. 1 is the main TV structure schematic diagram of the utility model
Fig. 2 is the right TV structure schematic diagram of the utility model
Fig. 3 is the left TV structure schematic diagram of the utility model
Be labeled as in figure: 1, top connection, 2, junk mill body, 3, liquid circulation channel, 4, carbide alloy, 5, side hydrophthalmia, 6, bottom hydrophthalmia, 7, central ports.
Detailed description of the invention
Embodiment 1
In exploitation of oil-gas field process, continuous tubing drill is utilized to grind the continuous oil pipe operation technology of bridging plug, junk mill is the key tool of continuous tubing drill mill technology, and after bridging plug classification pressure break terminates, coiled tubing carries junk mill lower going-into-well cylinder and bores all bridging plugs except making pit shaft recover production capacity as early as possible.
The continuous tubing drill mill flat-bottom grind shoes that the utility model relates to, comprise junk mill body 2, described junk mill body 2 upper end is provided with top connection 1, lower end surface is provided with carbide alloy 4, junk mill body 2 inner chamber forms central ports 7, the through junk mill body 2 in central ports 7 upper end, lower end closed, junk mill body 2 side is provided with the side hydrophthalmia 5 that direction upwards and with central ports 7 is communicated with, carbide alloy 4 end face has been disposed radially passage, the bottom hydrophthalmia 6 be communicated with central ports 7 is provided with in passage on carbide alloy 4, on junk mill body 2 outer wall, correspondence is provided with direction passage upwards, channel connection on passage on carbide alloy 4 and junk mill body 2 outer wall forms liquid circulation channel 3.
In the present embodiment, described liquid circulation channel 3 is uniformly distributed and is set to five, and bottom hydrophthalmia 6 correspondence is evenly set to five.
In the present embodiment, described top connection 1 is integral type structure or split-type structural with junk mill body 2.
In the present embodiment, when described top connection 1 is integral type structure with junk mill body 2, junk mill body 2 top is top connection, and mid diameter is less than lower diameter, and middle part and bottom are by the transition of chamfered transition section.
In the present embodiment, described side hydrophthalmia 5 is three, is arranged in chamfered transition section.
In the present embodiment, described three side hydrophthalmias 5 between any two angle are 72 °, 144 ° and 144 °.
In the present embodiment, described liquid circulation channel 3 extends to chamfered transition section from junk mill body 2 bottom.
In the present embodiment, described carbide alloy 4 heap is welded on junk mill body 2 lower end surface.
Embodiment 2
The present embodiment is described further the utility model by reference to the accompanying drawings.
See accompanying drawing, the utility model is made up of top connection 1, junk mill body 2, liquid circulation channel 3, carbide alloy 4, side hydrophthalmia 5, bottom hydrophthalmia 6 and central ports 7.Top connection 1 and junk mill body 2 are in integral structure, junk mill body 2 side is uniformly distributed 5 liquid circulation channels 3 and 3 side hydrophthalmias 5, side hydrophthalmia 5 between any two angle is 72 °, 144 ° and 144 °, bottom pile-up welding hard alloy 4, be uniformly distributed 5 bottom hydrophthalmias 6 above, side hydrophthalmia 5 is communicated with by central ports 7 with bottom hydrophthalmia 6.
The bridging plug chip ground by carbide alloy 4 by the working solution of bottom hydrophthalmia 6 is returned on well head through liquid circulation channel 3, and the turbulent flow that side hydrophthalmia 5 injection is formed improves on chip returns ability, avoids sand setting bit freezing.
Claims (8)
1. a continuous tubing drill mill flat-bottom grind shoes, comprise junk mill body (2), it is characterized in that: described junk mill body (2) upper end is provided with top connection (1), lower end surface is provided with carbide alloy (4), junk mill body (2) inner chamber forms central ports (7), the through junk mill body (2) in central ports (7) upper end, lower end closed, junk mill body (2) side is provided with the side hydrophthalmia (5) that direction upwards and with central ports (7) is communicated with, carbide alloy (4) end face has been disposed radially passage, the bottom hydrophthalmia (6) be communicated with central ports (7) is provided with in passage on carbide alloy (4), on junk mill body (2) outer wall, correspondence is provided with direction passage upwards, channel connection on passage on carbide alloy (4) and junk mill body (2) outer wall forms liquid circulation channel (3).
2. continuous tubing drill mill flat-bottom grind shoes according to claim 1, it is characterized in that: described liquid circulation channel (3) is uniformly distributed and is set to five, bottom hydrophthalmia (6) correspondence is evenly set to five.
3. continuous tubing drill mill flat-bottom grind shoes according to claim 2, is characterized in that: described top connection (1) and junk mill body (2) are integral type structure or split-type structural.
4. continuous tubing drill mill flat-bottom grind shoes according to claim 3, it is characterized in that: when described top connection (1) and junk mill body (2) are for integral type structure, junk mill body (2) top is top connection (1), mid diameter is less than lower diameter, and middle part and bottom are by the transition of chamfered transition section.
5. continuous tubing drill mill flat-bottom grind shoes according to claim 4, is characterized in that: described side hydrophthalmia (5) is three, is arranged in chamfered transition section.
6. continuous tubing drill mill flat-bottom grind shoes according to claim 5, is characterized in that: described three side hydrophthalmias (5) between any two angle are 72 °, 144 ° and 144 °.
7. continuous tubing drill mill flat-bottom grind shoes according to claim 6, is characterized in that: described liquid circulation channel (3) extends to chamfered transition section from junk mill body (2) bottom.
8. continuous tubing drill mill flat-bottom grind shoes according to claim 7, is characterized in that: described carbide alloy (4) heap is welded on junk mill body (2) lower end surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520735551.2U CN204960850U (en) | 2015-09-22 | 2015-09-22 | Flat-bottom grinding shoe for drilling and grinding continuous oil pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520735551.2U CN204960850U (en) | 2015-09-22 | 2015-09-22 | Flat-bottom grinding shoe for drilling and grinding continuous oil pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204960850U true CN204960850U (en) | 2016-01-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520735551.2U Active CN204960850U (en) | 2015-09-22 | 2015-09-22 | Flat-bottom grinding shoe for drilling and grinding continuous oil pipe |
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| CN (1) | CN204960850U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2626496C1 (en) * | 2016-05-31 | 2017-07-28 | Публичное акционерное общество "Татнефть" имени В.Д. Шашина | Plugs removing method from perforated shank holes while pumping horizontal well in bitumen deposit |
| CN112412377A (en) * | 2020-11-20 | 2021-02-26 | 北京探矿工程研究所 | High-efficient diamond composite grind shoe for geological investigation of horizontal directional drilling engineering |
| CN115613990A (en) * | 2022-12-15 | 2023-01-17 | 中国石油集团川庆钻探工程有限公司 | Full-switching reversible water hole grinding shoe |
-
2015
- 2015-09-22 CN CN201520735551.2U patent/CN204960850U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2626496C1 (en) * | 2016-05-31 | 2017-07-28 | Публичное акционерное общество "Татнефть" имени В.Д. Шашина | Plugs removing method from perforated shank holes while pumping horizontal well in bitumen deposit |
| CN112412377A (en) * | 2020-11-20 | 2021-02-26 | 北京探矿工程研究所 | High-efficient diamond composite grind shoe for geological investigation of horizontal directional drilling engineering |
| CN115613990A (en) * | 2022-12-15 | 2023-01-17 | 中国石油集团川庆钻探工程有限公司 | Full-switching reversible water hole grinding shoe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200921 Address after: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Chuanqing Drilling Engineering Co.,Ltd. Address before: Chenghua District Green Road 610051 Chengdu City, Sichuan province 1 No. 3 Chuanqing drilling Department of Science & Technology Patentee before: CNPC Chuanqing Drilling Engineering Co.,Ltd. |
|
| TR01 | Transfer of patent right |