CN106988699A - An a kind of formula side-drilling windowing milling cone instrument - Google Patents
An a kind of formula side-drilling windowing milling cone instrument Download PDFInfo
- Publication number
- CN106988699A CN106988699A CN201710326125.7A CN201710326125A CN106988699A CN 106988699 A CN106988699 A CN 106988699A CN 201710326125 A CN201710326125 A CN 201710326125A CN 106988699 A CN106988699 A CN 106988699A
- Authority
- CN
- China
- Prior art keywords
- wings
- cone
- milling
- milling cone
- nose cone
- 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.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B29/00—Cutting or destroying pipes, packers, plugs, or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/42—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits
- E21B10/43—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits characterised by the arrangement of teeth or other cutting elements
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
- E21B10/54—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of the rotary drag type, e.g. fork-type bits
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/60—Drill bits characterised by conduits or nozzles for drilling fluids
Abstract
The invention discloses an a kind of formula side-drilling windowing milling cone instrument, including milling cone body, the upper end of the milling cone body is connected by pin thread with top drill collar；The central ports of milling cone body described in the milling cone chamber body formation insertion；The end of the milling cone body is connected with the nose cone of drill-bit type structure, and middle and lower part is provided with the plug tap of watermelon milling structure, and top is provided with the third hand tap of helical milling structure；The central ports lower end closed that the nose cone inner chamber is formed in central ports, the nose cone, nose cone described in the insertion of upper end is simultaneously connected with the intrinsic central ports of the milling cone；The nozzle bore being connected with the central ports in the nose cone is provided with the nose cone.The present invention is monoblock type, simple in construction, highly versatile, wide adaptability, the problems such as solving windowing time length, inefficient side-drilling windowing milling cone windowing, the costly and milling cone nose cone serious wear that opens a window.
Description
Technical field
The present invention relates to oil and gas well drilling technology, a more particularly to a kind of formula side-drilling windowing milling cone instrument.
Background technology
Casing side tracking windowing is raising annual wildcat success rate and the rate of oil and gas recovery, raising production capacity in oil exploration, development process
Important means, the technology is a small investment, the upper production. art technology of increasing oil of instant effect, can not only shorten drilling period, and
And drilling cost can be saved, using window sidetracking technique technology, opening for various types of wells is had been carried out in Oil Field
Window directional sidetracking is constructed, and achieves good effect.Casing window sidetracking can bring back to life dried-up well, and old well updates；Adjust and perfect
Original well pattern structure；The intensified oil reduction of window sidetracking technology energy, the extension oil reservoir exploitation time limit, improve final oil recovery；Can
To make full use of old well site and ground installation, construction investment, environmental protection are saved；New ground can be obtained during casing sidetracking
Matter data, foundation is provided to re-recognize oil reservoir.
Current casing side tracking windowing technology service company is mostly to bore twice；When the technological service of formula side-drilling windowing opens a window twice
Between it is long, window quality is general, and windowing expense is low, and comprehensive cost is high；Time formula side-drilling windowing technological service windowing time is relatively short,
Window quality is good, opens a window costly, comprehensive cost is low；But the side-drilling windowing milling cone windowing efficiency of a formula side-drilling windowing instrument is not
It is very high, while milling cone nose cone serious wear, for problem above, devises an a kind of formula side-drilling windowing milling cone instrument.
The content of the invention
The purpose of the present invention is to overcome of the prior art not enough there is provided an a kind of formula side-drilling windowing milling cone instrument,
Asked with solving windowing time length, inefficient, the costly and milling cone nose cone serious wear that opens a window of side-drilling windowing milling cone windowing etc.
Topic..
The technical solution adopted in the present invention is：An a kind of formula side-drilling windowing milling cone instrument, including milling cone body, institute
The upper end for stating milling cone body is connected by pin thread with top drill collar；Milling cone body described in the milling cone chamber body formation insertion
Central ports；The end of the milling cone body is connected with the nose cone of drill-bit type structure, and middle and lower part is provided with watermelon milling structure
Plug tap, top is provided with the third hand tap of helical milling structure；The central ports that the nose cone inner chamber is formed in central ports, the nose cone
Lower end closed, nose cone described in the insertion of upper end is simultaneously connected with the intrinsic central ports of the milling cone；It is provided with the nose cone
The nozzle bore being connected with the central ports in the nose cone.
10 wings are provided with the nose cone, it is respectively 1# wings, 2# wings, 3# wings, 4# knives clockwise to prolong
The wing, 5# wings, 6# wings, 7# wings, 8# wings, 9# wings and 10# wings, the 2# wings, 3# wings, 5# wings, 7# knives
Surface soldering on the wing and 10# wings has a single PDC teeth, the 1# wings, 4# wings, 6# wings, 8# wings and 9# wings
Surface soldering has double PDC teeth.
It is connected through a screw thread and is welded as a whole between the nose cone and the milling cone body.
Connecting pin is connected with by alignment pin in the nose cone, and is connected by the connecting pin with whipstock.
The width for the wing being provided with the plug tap on 8 wings that helical form is arranged vertically, the plug tap is 16-
18mm。
The broken alloy of equal built-up welding on the wing of the plug tap.
The width for the wing being provided with the third hand tap in 8 wings that helical form is arranged vertically, the third hand tap is 16-
18mm。
The broken alloy of equal built-up welding on the wing of the third hand tap.
The beneficial effects of the invention are as follows：
1st, the present invention is monoblock type, simple in construction；
2nd, in the present invention, plug tap, third hand tap wing width are 16-18mm, have both ensured wing intensity in turn ensure that at wing and have flowed
It is difficult to be blocked by iron filings at road width, such wing；
3rd, in the present invention, 1#, 4#, 6#, 8#, 9# wing of nose cone are designed using double rows of teeth, enhance PDC tooth chip sleeve pipes
Ability；
4th, highly versatile of the present invention, wide adaptability.
Brief description of the drawings
Fig. 1：Schematic structural view of the invention；
Fig. 2：Fig. 1 of the present invention left view structural representation；
Fig. 3：The present invention and whipstock attachment structure schematic diagram；
Fig. 4：Plug tap positive structure diagram of the present invention；
Fig. 5：A-A cross-sectional views of the present invention；
Fig. 6：Third hand tap positive structure diagram of the present invention；
Fig. 7：B-B cross-sectional views of the present invention；
Accompanying drawing is marked：1st, PDC teeth；2nd, nose cone；3rd, milling cone body；4th, plug tap；5th, central ports；6th, third hand tap；7th, pin thread；8、
Nozzle bore；9th, central ports；10th, alignment pin；11st, connecting pin；12nd, whipstock；13rd, wing；14th, broken alloy；15th, wing；16、
Broken alloy.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings.
As shown in figure 1, an a kind of formula side-drilling windowing milling cone instrument, including milling cone body 3, the milling cone body 3
Upper end is connected by pin thread 7 with top drill collar；The inner chamber of milling cone body 3 forms the middle edema with the heart involved of milling cone body 3 described in insertion
Eye 5.The end of the milling cone body 3 is connected with nose cone 2, and middle and lower part sets plug tap 4, and top is provided with third hand tap 6.
As shown in Figure 6 and Figure 7, the third hand tap 6 is helical milling structure, is integrated with the milling cone body 3.It is described
8 wings 15 that helical form is arranged vertically are provided with third hand tap 6；The width of wing 15 in the third hand tap 6 is 16-18mm,
Both ensured that the intensity of wing 15 in turn ensure that to be difficult to be blocked by iron filings at width of flow path at wing 15, wing 15；The knife of the third hand tap 6
The equal broken alloy 16 of built-up welding on the wing 15, for milling window.
As shown in Figure 4 and Figure 5, the plug tap 4 is watermelon milling structure, is integrated with the milling cone body 3.It is described
8 wings 13 that helical form is arranged vertically are provided with plug tap 4；The width of wing 13 on the plug tap 4 is 16-18mm,
Both ensured that the intensity of wing 13 in turn ensure that to be difficult to be blocked by iron filings at width of flow path at wing 13, wing 13；The knife of the plug tap 4
The equal broken alloy 14 of built-up welding on the wing 13, for milling window.
As shown in Figures 2 and 3, the nose cone 2 is to be connected through a screw thread between drill-bit type structure, and the milling cone body 3
And be welded as a whole, the reduction windowing task of nose cone 2 falls well risk.The inner chamber of nose cone 2 is formed in central ports 9, the nose cone 2
The lower end closed of central ports 9, nose cone 2 described in the insertion of upper end is simultaneously connected with the central ports 5 in the milling cone body 3；Institute
State the nozzle bore 8 for being provided with and being connected with the central ports 9 in the nose cone 2 on nose cone 2.10 are provided with the nose cone 2
Wing, it is respectively 1# wings, 2# wings, 3# wings, 4# wings, 5# wings, 6# wings, 7# wings, 8# knives clockwise to prolong
Surface soldering on the wing, 9# wings and 10# wings, the 2# wings, 3# wings, 5# wings, 7# wings and 10# wings has single
PDC (Polycrystalline Diamond Compact, composite polycrystal-diamond) tooth 1, the 1# wings, 4# wings, 6#
The surface soldering of wing, 8# wings and 9# wings has double PDC teeth 1.Connecting pin is connected with by alignment pin 10 in the nose cone 2
11, and be connected by the connecting pin 11 with whipstock 12, the connecting pin 11 is mainly used to limitation whipstock 12 and milling cone
Between radial displacement, milling cone and whipstock 12 be connected as a single entity, and bores and can be saved with tripping in whipstock 12 and milling cone for such one time
Time trip time, substantially reduce window sidetracking cost.
Claims (8)
1. an a kind of formula side-drilling windowing milling cone instrument, including milling cone body, the upper end of the milling cone body by pin thread with
Top drill collar is connected；Characterized in that, the central ports of milling cone body described in the milling cone chamber body formation insertion；It is described
The end of milling cone body is connected with the nose cone of drill-bit type structure, and middle and lower part is provided with the plug tap of watermelon milling structure, and top is provided with
The third hand tap of helical milling structure；The central ports lower end closed that the nose cone inner chamber is formed in central ports, the nose cone, upper end is passed through
Lead to the nose cone and be connected with the intrinsic central ports of the milling cone；Be provided with the nose cone with the nose cone in
The nozzle bore that edema with the heart involved eye is connected.
2. formula side-drilling windowing milling cone instrument according to claim 1, it is characterised in that be provided with the nose cone
10 wings, prolong clockwise be respectively 1# wings, 2# wings, 3# wings, 4# wings, 5# wings, 6# wings, 7# wings,
Surface soldering on 8# wings, 9# wings and 10# wings, the 2# wings, 3# wings, 5# wings, 7# wings and 10# wings has
Single PDC teeth, the 1# wings, 4# wings, 6# wings, the surface soldering of 8# wings and 9# wings have double PDC teeth.
3. formula side-drilling windowing milling cone instrument according to claim 1 or 2, it is characterised in that the nose cone and institute
State and be connected through a screw thread between milling cone body and be welded as a whole.
4. formula side-drilling windowing milling cone instrument according to claim 1, it is characterised in that be provided with the plug tap
The wing of 8 helical form arrangements vertically, the width of the wing on the plug tap is 16-18mm.
5. a formula side-drilling windowing milling cone instrument according to claim 1 or 4, it is characterised in that the knife of the plug tap
The broken alloy of equal built-up welding on the wing.
6. formula side-drilling windowing milling cone instrument according to claim 1, it is characterised in that be provided with the third hand tap
The wing of 8 helical form arrangements vertically, the width of the wing in the third hand tap is 16-18mm.
7. a formula side-drilling windowing milling cone instrument according to claim 1 or 6, it is characterised in that the knife of the third hand tap
The broken alloy of equal built-up welding on the wing.
8. formula side-drilling windowing milling cone instrument according to claim 1, it is characterised in that by fixed in the nose cone
Position pin connection has connecting pin, and is connected by the connecting pin with whipstock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710326125.7A CN106988699A (en) | 2017-05-10 | 2017-05-10 | An a kind of formula side-drilling windowing milling cone instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710326125.7A CN106988699A (en) | 2017-05-10 | 2017-05-10 | An a kind of formula side-drilling windowing milling cone instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106988699A true CN106988699A (en) | 2017-07-28 |
Family
ID=59418213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710326125.7A Pending CN106988699A (en) | 2017-05-10 | 2017-05-10 | An a kind of formula side-drilling windowing milling cone instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106988699A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111749636A (en) * | 2020-07-09 | 2020-10-09 | 合力（天津）能源科技股份有限公司 | Multi-layer casing windowing mill shoe |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020170713A1 (en) * | 2000-09-11 | 2002-11-21 | Haugen David M. | System for forming a window and drilling a sidetrack wellbore |
| CN102162343A (en) * | 2011-04-14 | 2011-08-24 | 中国海洋石油总公司 | Milling shoes for casing window sidetracking |
| CN202031515U (en) * | 2011-04-06 | 2011-11-09 | 中国海洋石油总公司 | High-efficiency milling cone with steering tool |
| CN202544785U (en) * | 2012-03-01 | 2012-11-21 | 中国石油集团长城钻探工程有限公司 | Falling-off prevention integrated window opening tool |
| WO2015069463A1 (en) * | 2013-11-06 | 2015-05-14 | Baker Hughes Incorporated | Single trip cement thru open hole whipstock |
-
2017
- 2017-05-10 CN CN201710326125.7A patent/CN106988699A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020170713A1 (en) * | 2000-09-11 | 2002-11-21 | Haugen David M. | System for forming a window and drilling a sidetrack wellbore |
| CN202031515U (en) * | 2011-04-06 | 2011-11-09 | 中国海洋石油总公司 | High-efficiency milling cone with steering tool |
| CN102162343A (en) * | 2011-04-14 | 2011-08-24 | 中国海洋石油总公司 | Milling shoes for casing window sidetracking |
| CN202544785U (en) * | 2012-03-01 | 2012-11-21 | 中国石油集团长城钻探工程有限公司 | Falling-off prevention integrated window opening tool |
| WO2015069463A1 (en) * | 2013-11-06 | 2015-05-14 | Baker Hughes Incorporated | Single trip cement thru open hole whipstock |
Non-Patent Citations (1)
| Title |
|---|
| 《油矿修井工人读本（下册）》编写组: "《油矿修井工人读本（下册）》", 31 July 1975, 石油化学工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111749636A (en) * | 2020-07-09 | 2020-10-09 | 合力（天津）能源科技股份有限公司 | Multi-layer casing windowing mill shoe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Applicant after: China Offshore Oil Group Co., Ltd. Applicant after: CNOOC Energy Development Co., Ltd. Address before: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Applicant before: China National Offshore Oil Corporation Applicant before: CNOOC Energy Development Co., Ltd. |
|
| CB02 | Change of applicant information | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170728 |
|
| RJ01 | Rejection of invention patent application after publication |