CN208152941U - A kind of While-drilling borehole dressing tool - Google Patents
A kind of While-drilling borehole dressing tool Download PDFInfo
- Publication number
- CN208152941U CN208152941U CN201820515876.3U CN201820515876U CN208152941U CN 208152941 U CN208152941 U CN 208152941U CN 201820515876 U CN201820515876 U CN 201820515876U CN 208152941 U CN208152941 U CN 208152941U
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- Prior art keywords
- hurricane
- centralizer
- dressing tool
- resistance
- wing
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Abstract
The utility model discloses a kind of While-drilling borehole dressing tools, including ontology, the ontology upper end is set as female thread, lower end is set as pin thread, and the body interior is provided with hydrophthalmia, the axially disposed hurricane band there are two with its integral structure of the body exterior along axis, two equal eccentric settings of hurricane band, two hurricane bands are made of centralizer wing and flow path groove, and 180 ° of the differing distribution of centralizer wing on two hurricane bands, each centralizer wing is provided with PDC tooth.The utility model effectively expands borehole diameter, reduces shoulder of hole frictional resistance, alleviates the abrasion that drilling tool passes through and reduces the number that makes a trip, reduces drillng operation cost.
Description
Technical field
The utility model relates to be used for oil and gas well drilling field, more specifically, it relates to a kind of While-drilling boreholes to repair
Whole tool.
Background technique
Either straight well or directional well, either land or operation on the sea, during directed drilling, hole quality meeting
By the destruction of different modes, due to there is certain angle between directional tool combined drill and other drilling tools, in drilling well
Will form screw type wellbore in the process, cause actual hole diameter will than expected borehole diameter it is much smaller, geosteering will be this
Situation is known as conventional step, will increase torque when rotating with slide drilling, and will increase dog-leg severity when directed drilling.Drill bit is drill-through
Behind stratum, strata pressure is released, and formation rock rupture enters pit shaft, this can all increase drilling well resistance, and underground torque also can be anxious
Increase severely and add, seriously reduces rate of penetration, meanwhile, bit pressure can not be effectively passed to drill bit, and it is unnecessary that tool can occur in shaft bottom
Collision, here it is develop While-drilling borehole dressing tool the reason of.
Utility model content
The purpose of this utility model is to overcome deficiencies in the prior art, provide a kind of While-drilling borehole fabricator
Tool, effectively expansion borehole diameter, reduce shoulder of hole frictional resistance, alleviate the abrasion that drilling tool passes through and reduce the number that makes a trip, reduce and bore
Well operations cost.
The purpose of this utility model is achieved through the following technical solutions.
The While-drilling borehole dressing tool of the utility model, including ontology, the ontology upper end are set as female thread, lower end setting
For pin thread, the body interior is provided with hydrophthalmia along axis, the body exterior it is axially disposed there are two with its integral structure
Hurricane band, two equal eccentric settings of hurricane band, two hurricane bands are made of centralizer wing and flow path groove, two institutes
180 ° of differing distribution for stating centralizer wing on hurricane band, each centralizer wing is provided with PDC tooth.
Two hurricane bands are made of four centralizer wings and four flow path grooves, and four centralizer wings are set to where it
Hurricane band bias evagination side, four centralizer wings on each hurricane band along direction of rotation be denoted as No. I, No. II, No. III,
No. IV, wherein the soldering of No. I centralizer wing is there are two resistance to grinding column, No. II and No. III centralizer wing are brazed respectively a resistance to grinding column.
The resistance to grinding column is set as domes, and the resistance to grinding column uses Buddha's warrior attendant stone column, and the resistance to grinding column ratio PDC tooth is high by 1
~2mm.
The PDC tooth and the horizontal direction angle of cut are 10 °~30 °.
Two spiral belt surfaces are coated with carbine abrasion-proof alloy-layer.
PDC tooth in the centralizer wing is under the effect of eccentric centrifugal power, gradual finishing screw type wellbore step by step.
Compared with prior art, beneficial effect brought by the technical solution of the utility model is：
(1) the utility model devises two hurricane bands, and hurricane band eccentric setting, eccentricity is adjustable, according to live real
Border situation and customer requirement determine.
(2) in the utility model two hurricane bands centralizer wing differing distribution 180, hurricane band two-way reaming hole design, effectively
Guarantee borehole diameter.
(3) centralizer wing is provided with PDC tooth in the utility model, and part centralizer wing devises the resistance to grinding column of arch, can eliminate
Its damage and protection PDC tooth to casing.
(4) hurricane band eccentric setting in the utility model, under the action of the centrifugal force, PDC tooth can gradual finishing spiral shells step by step
The abrasion that rotation type wellbore, effectively expansion borehole diameter, reduction shoulder of hole frictional resistance, alleviation drilling tool pass through reduces the number that makes a trip,
The torque of entire drill string is reduced, drillng operation cost is reduced.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model While-drilling borehole dressing tool；
Fig. 2 is the structural schematic diagram of hurricane band in the utility model；
Fig. 3 is the eccentric setting schematic diagram of hurricane band in the utility model；
Fig. 4 is the cloth tooth figure of four centralizer wings on hurricane band in the utility model；
Fig. 5 is the expanded view of hurricane band in the utility model.
Appended drawing reference:1 female thread；2 hydrophthalmias；3 ontologies；4 hurricane bands；5 pin threads；6 PDC teeth；7 resistance to grinding columns；41 flow path grooves；42
Centralizer wing.
Specific embodiment
For the utility model content, feature and effect that can further appreciate that the utility model, the following examples are hereby given, and
Attached drawing is cooperated to be described in detail.
As shown in Figures 1 to 5, the While-drilling borehole dressing tool of the utility model, including ontology 3,3 upper end of ontology are set
It is set to female thread 1, lower end is set as pin thread 5, and axis is provided with hydrophthalmia 2 inside the ontology 3.The female thread 1 and pin thread 5 are
Petroleum standard drill rod special button, the female thread 1 are connect with upper drilling string, and the pin thread 5 is connect with lower drilling string.
3 outside of ontology is axially disposed there are two hurricane band 4, and two hurricane bands 4 are integrated knot with the setting of ontology 3
Structure.Two equal eccentric settings of the hurricane band 4, eccentricity l is adjustable, is determined according to on-site actual situations and customer requirement, partially
The heart determines wellbore amplification degree away from size.Two hurricane bands 4 are made of centralizer wing 42 and flow path groove 41, and centralizer wing 42 is set
It is placed in its 4 eccentric evagination side of place hurricane band, 180 ° of differing distribution of centralizer wing 42 on two hurricane bands 4.It is preferred that two
A hurricane band 4 is made of four centralizer wings 42 and four flow path grooves 41, and four rightings on each hurricane band 4
The wing is denoted as No. I, No. II, No. III, No. IV along direction of rotation, wherein the soldering of No. I centralizer wing 42 is there are two resistance to grinding column 7, No. II and
No. III centralizer wing 42 is brazed respectively a resistance to grinding column 7.
Each centralizer wing 42 is provided with PDC tooth 6, and the PDC tooth 6 and horizontal direction angle of cut α is 10 °~30 °, angle
Size is spent to require to determine according to layer attribute and drilling well.The resistance to grinding column 7 is set as domes, can eliminate in going down process
PDC tooth 6 cuts casing and protection PDC tooth 6；The resistance to grinding column 7 uses Buddha's warrior attendant stone column, and the resistance to grinding column 7 is higher than PDC tooth by 1~
2mm.Two 4 surfaces of hurricane band are coated with the carbine abrasion-proof alloy-layer of 0.5~1mm thickness, it is therefore an objective in use process
The abrasion-resistance and wearability of middle enhancing tool.
The centralizer wing 42 gradual finishing borehole wall step by step, reduces the torque of entire drill string.In drilling process, top drive or
Turntable rotation drives the rotation of While-drilling borehole dressing tool, due to 4 eccentric setting of hurricane band, under the action of the centrifugal force, 6 meeting of PDC tooth
Gradual finishing screw type wellbore step by step, effectively expansion borehole diameter reduce shoulder of hole frictional resistance, alleviate the abrasion that drilling tool passes through
Reduction makes a trip number, reduces drillng operation cost
Although being described above in conjunction with function and the course of work of the attached drawing to the utility model, the utility model is simultaneously
It is not limited to above-mentioned concrete function and the course of work, the above mentioned embodiment is only schematical, rather than limits
Property, those skilled in the art are not departing from the utility model aims and right is wanted under the enlightenment of the utility model
It asks under protected ambit, many forms can also be made, these are belonged within the protection of the utility model.
Claims (6)
1. a kind of While-drilling borehole dressing tool, including ontology (3), ontology (3) upper end is set as female thread (1), lower end setting
For pin thread (5), the ontology (3) is internal to be provided with hydrophthalmia (2) along axis, which is characterized in that the ontology (3) is external along axial direction
Hurricane band (4) there are two being arranged with its integral structure, two equal eccentric settings of the hurricane band (4), two hurricane bands
(4) it is made of centralizer wing (42) and flow path groove (41), the differing distribution of centralizer wing (42) on two hurricane bands (4)
180 °, each centralizer wing (42) is provided with PDC tooth (6).
2. While-drilling borehole dressing tool according to claim 1, which is characterized in that two hurricane bands (4) are by four
A centralizer wing (42) and four flow path groove (41) compositions, and four centralizer wings (42) are set to outside its place hurricane band (4) bias
Convex side, four centralizer wings (42) on each hurricane band (4) are denoted as No. I, No. II, No. III, No. IV along direction of rotation,
Wherein the soldering of No. I centralizer wing is there are two resistance to grinding column (7), and No. II and No. III centralizer wing are brazed respectively a resistance to grinding column (7).
3. While-drilling borehole dressing tool according to claim 2, which is characterized in that the resistance to grinding column (7) is set as arch
Structure, the resistance to grinding column (7) use Buddha's warrior attendant stone column, and the resistance to grinding column (7) is 1~2mm higher than PDC tooth (6).
4. While-drilling borehole dressing tool according to claim 1, which is characterized in that the PDC tooth (6) and horizontal direction are handed over
Angle is 10 °~30 °.
5. While-drilling borehole dressing tool according to claim 1, which is characterized in that two hurricane band (4) surfaces are equal
It is coated with carbine abrasion-proof alloy-layer.
6. While-drilling borehole dressing tool according to claim 1, which is characterized in that the PDC tooth on the centralizer wing (42)
(6) under the effect of eccentric centrifugal power, gradual finishing screw type wellbore step by step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820515876.3U CN208152941U (en) | 2018-04-12 | 2018-04-12 | A kind of While-drilling borehole dressing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820515876.3U CN208152941U (en) | 2018-04-12 | 2018-04-12 | A kind of While-drilling borehole dressing tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208152941U true CN208152941U (en) | 2018-11-27 |
Family
ID=64377691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820515876.3U Active CN208152941U (en) | 2018-04-12 | 2018-04-12 | A kind of While-drilling borehole dressing tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208152941U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109403885A (en) * | 2018-12-05 | 2019-03-01 | 深圳越海工程技术有限公司 | A kind of Bidirectional screw type is with borehole wall reshaper |
| CN112832704A (en) * | 2021-01-29 | 2021-05-25 | 成都维锐泰达能源技术有限公司 | Damping and centering device for pumping intelligent opening device, intelligent opening device and multi-stage fracturing intelligent control system |
| CN113047774A (en) * | 2021-03-18 | 2021-06-29 | 中煤科工集团西安研究院有限公司 | Broken stratum multistage hole wall repairing drilling tool combination and directional drilling method |
-
2018
- 2018-04-12 CN CN201820515876.3U patent/CN208152941U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109403885A (en) * | 2018-12-05 | 2019-03-01 | 深圳越海工程技术有限公司 | A kind of Bidirectional screw type is with borehole wall reshaper |
| CN109403885B (en) * | 2018-12-05 | 2023-09-12 | 深圳越海工程技术有限公司 | Bidirectional spiral type while-drilling wall shaper |
| CN112832704A (en) * | 2021-01-29 | 2021-05-25 | 成都维锐泰达能源技术有限公司 | Damping and centering device for pumping intelligent opening device, intelligent opening device and multi-stage fracturing intelligent control system |
| CN113047774A (en) * | 2021-03-18 | 2021-06-29 | 中煤科工集团西安研究院有限公司 | Broken stratum multistage hole wall repairing drilling tool combination and directional drilling method |
| CN113047774B (en) * | 2021-03-18 | 2023-04-28 | 中煤科工集团西安研究院有限公司 | Drilling tool assembly for repairing multi-stage hole walls of broken stratum and directional drilling method |
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