CN205503071U - Long conical surface milling cone with raised head and guide - Google Patents
Long conical surface milling cone with raised head and guide Download PDFInfo
- Publication number
- CN205503071U CN205503071U CN201620334850.XU CN201620334850U CN205503071U CN 205503071 U CN205503071 U CN 205503071U CN 201620334850 U CN201620334850 U CN 201620334850U CN 205503071 U CN205503071 U CN 205503071U
- Authority
- CN
- China
- Prior art keywords
- milling
- conical surface
- long conical
- hard alloy
- plush copper
- 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.)
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Links
- 238000003801 milling Methods 0.000 title claims abstract description 48
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910052802 copper Inorganic materials 0.000 claims abstract description 15
- 239000010949 copper Substances 0.000 claims abstract description 15
- 239000000956 alloy Substances 0.000 claims abstract description 11
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 11
- 239000002245 particle Substances 0.000 claims abstract description 10
- 238000005275 alloying Methods 0.000 claims description 3
- 239000008188 pellet Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 16
- 238000010276 construction Methods 0.000 abstract description 8
- 238000006073 displacement reaction Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 238000005242 forging Methods 0.000 description 2
- 241000220645 Leonotis nepetifolia Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 125000000058 cyclopentadienyl group Chemical group C1(=CC=CC1)* 0.000 description 1
- ZSWFCLXCOIISFI-UHFFFAOYSA-N endo-cyclopentadiene Natural products C1C=CC=C1 ZSWFCLXCOIISFI-UHFFFAOYSA-N 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The utility model relates to a long conical surface of plush copper area guide is milled awl. The problem of current well workover kit be applied to when handling special big displacement activity broken shaft milling awl milling have the milling construction to mill the milling quality poor is mainly solved. The method is characterized in that: hard alloy particles (4) are inlaid on the outer wall of the body (1), 4 cutter teeth (2) are uniformly distributed on the hard alloy particles (4), and a circulating channel (3) is obliquely formed in the conical head part at the front end of the body (1). The long conical surface milling cone with the lead in the raised head can realize the repair of the active fault fracture and the deformed sleeve of the large-displacement active fault broken well, has high milling efficiency and has good effect on treating and repairing the active fault broken well fracture.
Description
Technical field
This utility model relates to a kind of workover tool in oilfield engineering technical field, particularly a kind of plush copper band introduction long conical surface milling cone.
Background technology
Oil field middle and late stage, owing to engineering and geologic(al) factor make casing failure be on the rise, existing well workover kit is applied to processing big displacement activity broken well, milling taper thread grinding milling also exists the shortcomings such as milling construction milling is of poor quality, the easy milling of milling to sleeve pipe is outer, down hole problem or down-hole accident easily occur in milling work progress, thus cause milling speed of application in down-hole slow, and be easily caused milling passage and lose, even well workover failure.Therefore specialized designs plush copper band introduction long conical surface milling cone, solves the problems referred to above.
Summary of the invention
When technical problem to be solved in the utility model is to overcome existing well workover kit in background technology to be applied to processing special big displacement activity broken well, milling taper thread grinding milling also exists the milling construction ropy problem of milling, and a kind of plush copper band introduction long conical surface milling cone is provided, this plush copper band introduction long conical surface milling is bored, big displacement activity broken well activity bad break mouth and the reparation of deformed casing can be realized, milling efficiency is high, effective in terms of administering repairing activity broken well fracture reparation.
The invention for solving the technical problem can reach by following technical solution: this plush copper band introduction long conical surface milling is bored, including main body, described body outer wall studs with hard alloy particle, uniform 4 cutters tooth on described matter alloying pellet, and described body front-end-cone head part is oblique has circulation canal.
This utility model can have the advantages that compared with above-mentioned background technology this plush copper band introduction long conical surface milling cone is owing to using said structure, this instrument has and leads instrument to enter bad break mouth and the effect of efficient milling, big displacement activity broken well activity bad break mouth and the reparation of deformed casing can be realized, milling efficiency is high, and in terms of administering repairing activity broken well fracture reparation, effect is preferable.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model.
In figure: 1-body；2-cutter tooth；3-circulation canal；4-hard alloy particle.
Detailed description of the invention:
The utility model is described in further detail below in conjunction with the accompanying drawings:
As shown in Figure 1, this plush copper band introduction long conical surface milling is bored, including body 1, described body 1 outer wall studs with hard alloy particle 4, uniform 4 cutters tooth 2 on described matter alloying pellet 4, the oblique circulation canal 3 that has of described body 1 front-end-cone head part, described circulation canal 3 is 45 ° with body 1 axis angle；Described hard alloy particle 4 is YG hard alloy particle, and milling effect is more preferable, and milling is in hgher efficiency.
By plush copper band introduction long conical surface milling tapered joint in the bottom of operating tool string, the low the pressure of the drill of G.I.H (the pressure of the drill 5 10KN) milling, other carries out milling construction according to conventional milling construction parameter, and this instrument has different specifications according to construction hole condition difference.
First this milling cone is inserted in the sleeve pipe of former well when carrying out casing repairing operation, carry out righting, then utilize the wolfram steel powder on milling cone and YG alloy block that damaged sleeve pipe carries out the most expanding and finishing, when after preliminary expanding shaping success, under enter major diameter milling hole enlargement tool and carry out further expanding work, until sleeve shrinking diameter partial enlargement to be reinforced the requirement of tubing string to applicable lower seal, enter to reinforce down tubing string and carry out sealing and reinforcing construction.Due to guiding and the centralizing function of bald head, prevent the eccentric wear that milling is bored, efficiently solve the accident grinding casing sidetracking, create advantage for next step well workover construction.
Embodiment 1: in the oblique 80 well test application of big 54-.Playing Tubing During Running chucking power 12t, lower lead stamp prints and confirms without passage, utilizes forging milling cutter forging milling, under enter the plush copper band introduction long conical surface milling cone bad break mouth repaired, successfully open passage, afterwards under enter lower nib and look for passage to find.Total data and test effect are normal.
Embodiment 2: add 61-92 test application in cyclopentadienyl.Fracture lateral displacement is big, without oil pipe spike.Under enter the plush copper band introduction long conical surface milling cone activity bad break mouth repaired, successfully open passage, rear under enter lower nib and look for passage to find.Total data and test effect are normal.
Claims (3)
1. a plush copper band introduction long conical surface milling cone, including main body (1), it is characterized in that: described main body (1) outer wall studs with hard alloy particle (4), upper uniform 4 cutters tooth (2) of described matter alloying pellet (4), described main body (1) front-end-cone head part is oblique has circulation canal (3).
Plush copper band introduction the most according to claim 1 long conical surface milling is bored, it is characterised in that: described circulation canal (3) and main body (1) axis angle are 45 °.
Plush copper band introduction the most according to claim 1 long conical surface milling is bored, it is characterised in that: described hard alloy particle (4) is YG hard alloy particle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620334850.XU CN205503071U (en) | 2016-04-20 | 2016-04-20 | Long conical surface milling cone with raised head and guide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620334850.XU CN205503071U (en) | 2016-04-20 | 2016-04-20 | Long conical surface milling cone with raised head and guide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205503071U true CN205503071U (en) | 2016-08-24 |
Family
ID=56706011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620334850.XU Active CN205503071U (en) | 2016-04-20 | 2016-04-20 | Long conical surface milling cone with raised head and guide |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205503071U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108412445A (en) * | 2018-05-21 | 2018-08-17 | 中国石油天然气股份有限公司 | Pen point milling cone with specially-made long conical surface channel finding function |
-
2016
- 2016-04-20 CN CN201620334850.XU patent/CN205503071U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108412445A (en) * | 2018-05-21 | 2018-08-17 | 中国石油天然气股份有限公司 | Pen point milling cone with specially-made long conical surface channel finding function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |