CN204200136U - Efficient well dressing tool - Google Patents
Efficient well dressing tool Download PDFInfo
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- CN204200136U CN204200136U CN201420633274.XU CN201420633274U CN204200136U CN 204200136 U CN204200136 U CN 204200136U CN 201420633274 U CN201420633274 U CN 201420633274U CN 204200136 U CN204200136 U CN 204200136U
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- dressing tool
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Abstract
The utility model discloses a kind of efficient well dressing tool, comprise segment of cutting, the lower end edge axis direction of described upper segment of cutting is connected with lower segment of cutting by the first linkage section, the upper end of described upper segment of cutting is connected with the first connector for being connected with well casing post, the lower end of described lower segment of cutting is connected with the second connector for being connected with well casing post, and the cross-sectional diameter of described first linkage section is less than the cross-sectional diameter of segment of cutting and the cross-sectional diameter of lower segment of cutting.The efficient well dressing tool of the utility model is conducive to improving hole quality, ensures setting of casing, well cementing operation, and is conducive to synergy of raising speed, and shortens drilling period.
Description
Technical field
The utility model relates to a kind of dressing tool, espespecially a kind of efficient well dressing tool.
Background technology
Along with oil-gas field development enters the middle and later periods, oil field development difficulty progressively strengthens, and the complex situations such as annular space builds the pressure, shallow-layer undergauge, leakage take place frequently.In order to ensure downhole safety, in wellbore construction, drilling crew has to take short trip, drifting reaming, reaming hole, even the technical measures such as leak stopping, and this will have a strong impact on drilling well timeliness.
After Deep Wells In Tarim completion, there is the problem of setting of casing difficulty.Main cause is that well exists the phenomenons such as keyway, due to well depth, to keyway position under sleeve pipe, just may directly be stuck on the borehole wall, not go under causing sleeve pipe.
In order to address this problem, the current practice of Tarim Basin is, except drilling process is just repeatedly except reaming, uses the drifting of watermelon peel drill bit again, be generally no longer with drill collar after finishing drilling.Because watermelon peel drill bit and borehole wall contact surface are points, drifting efficiency is very low.In order to ensure sleeve pipe can safely under enter, be often first be with a centralizer drifting, be with two centralizers again smoothly, generally will accomplish band four centralizers.Make a trip so often, delay length, sometimes reaches two or three months.
Utility model content
The purpose of this utility model is to provide a kind of efficient well dressing tool, and it is conducive to improving hole quality, ensures setting of casing, well cementing operation, and is conducive to synergy of raising speed, and shortens drilling period.
To achieve these goals, technical solution of the present utility model is: a kind of efficient well dressing tool, comprising upper segment of cutting, the lower end edge axis direction of described upper segment of cutting is connected with lower segment of cutting by the first linkage section, the upper end of described upper segment of cutting is connected with the first connector for being connected with well casing post, the lower end of described lower segment of cutting is connected with the second connector for being connected with well casing post, and the cross-sectional diameter of described first linkage section is less than the cross-sectional diameter of segment of cutting and the cross-sectional diameter of lower segment of cutting.
The efficient well dressing tool of the utility model, the external surface top of wherein said first linkage section is connected with stirs hammer, and the described cross-sectional diameter stirring hammer is greater than the cross-sectional diameter of the first linkage section.
The efficient well dressing tool of the utility model, the external surface of wherein said stirring hammer is circumferentially evenly equipped with six grooves, and the cross section angle of each bar groove is 60 °, and each described groove outer is respectively arranged with the 3rd wear-resistant strip along cutting direction.
The efficient well dressing tool of the utility model, the external surface bottom of wherein said first linkage section is connected with fluid speedup bulb, the cross-sectional diameter of described fluid speedup bulb is greater than the cross-sectional diameter of the first linkage section, and is less than the cross-sectional diameter of segment of cutting and lower segment of cutting.
The efficient well dressing tool of the utility model, wherein said fluid speedup bulb by little the second Rotary-table in the large bottom of the first Rotary-table and top that little bottom, top is large in connecting and composing up and down, the bottom surface of described first Rotary-table identical with the upper surface shape of the second Rotary-table and the two overlap.
The efficient well dressing tool of the utility model, the external surface of wherein said upper segment of cutting is circumferentially evenly equipped with four the first cutting edges, on each first cutting edge along rotate to front side be respectively arranged with the first wear-resistant strip, the cross section angle of described first cutting edge is 60 °.
The efficient well dressing tool of the utility model, the external surface of wherein said lower segment of cutting is circumferentially evenly equipped with four the second cutting edges, on each second cutting edge along rotate to front side be respectively arranged with the second wear-resistant strip, the cross section angle of described second cutting edge is 60 °, and described upper segment of cutting is contrary with the rotation direction of lower segment of cutting.
The efficient well dressing tool of the utility model, upper end compliant section is connected with between wherein said upper segment of cutting and the first connector, the cross-sectional diameter of described upper end compliant section is less than the cross-sectional diameter of segment of cutting and the cross-sectional diameter of the first connector, be connected with lower end compliant section between described lower segment of cutting and the second connector, the cross-sectional diameter of described lower end compliant section is less than the cross-sectional diameter of lower segment of cutting and the cross-sectional diameter of the second connector.
The efficient well dressing tool of the utility model, changeover portion is connected with between wherein said upper end compliant section and upper segment of cutting, be connected with lower changeover portion between described lower end compliant section and lower segment of cutting, the external surface of described upper changeover portion and the external surface of lower changeover portion are inlaid with PDC tooth respectively.
The efficient well dressing tool of the utility model, wherein said first connector is box end, and the second connector is pin end.
After adopting such scheme, the utility model efficient well dressing tool has following beneficial effect:
1, designed by the bidirectional rotation of upper segment of cutting and lower segment of cutting, and four of upper segment of cutting the first cutting edges, lower segment of cutting the design of four the second cutting edges, make the efficiency of the finishing borehole wall high, and more thorough;
2, the design of fluid speedup bulb, is conducive to cutting carring, ensures that well cleans;
3, between upper end compliant section with upper segment of cutting, changeover portion is connected, lower changeover portion is connected between lower end compliant section with lower segment of cutting, and the external surface of the external surface of upper changeover portion and lower changeover portion inlays PDC tooth respectively, such design is higher to well dressing efficiency, plays the effect reducing resistance simultaneously;
4, between upper segment of cutting with the first connector, be connected upper end compliant section, lower segment of cutting is connected lower end compliant section with between the second connector, adopts such flexible design, and this tool external diameter is slightly little, is conducive to this instrument and goes out, enters well;
5, the swing produced when this instrument is by rotating with drill string, realizes the cutting to borehole wall moment, and impact force is larger, and larger to the crushing force of rock of borehole, stock-removing efficiency is higher;
6, whole instrument is an entirety, and do not have mechanical movable part, safety is high.
Accompanying drawing explanation
Fig. 1 be the efficient well dressing tool of the present invention partly cut open structure schematic front view;
Fig. 2 is the A-A face generalized section of Fig. 1;
Fig. 3 is the B-B face generalized section of Fig. 1;
Fig. 4 is the C-C face generalized section of Fig. 1.
Below in conjunction with accompanying drawing, by embodiment, the present invention is described further;
Detailed description of the invention
As depicted in figs. 1 and 2, the efficient well dressing tool of the present invention, connected and composed successively by the first connector 1, upper end compliant section 2, upper changeover portion 3, upper segment of cutting 4, first linkage section 5, stirring hammer 6, fluid speedup bulb 7, lower segment of cutting 8, lower changeover portion 9, lower end compliant section 10 and the second connector 11 from top to bottom, the axial line of each parts overlaps, and axial line be vertical to;
First connector 1 is box end, and the second connector 11 is pin end, is respectively used to be connected with well casing post, also can connect by coordinating joint herein;
The cross-sectional diameter of upper end compliant section 2 is less than the cross-sectional diameter of segment of cutting 3 and the cross-sectional diameter of the first connector 1, the cross-sectional diameter of lower end compliant section 10 is less than the cross-sectional diameter of lower segment of cutting 8 and the cross-sectional diameter of the second connector 11, upper end compliant section 2, lower end compliant section 10 achieve this instrument and produce swing during fast rotational in wells, and upper end compliant section 2 is slightly more longer than lower end compliant section 10 herein;
The external surface of upper segment of cutting 4 is circumferentially evenly equipped with four the first cutting edges 12, each first cutting edge 12 is welded with the first wear-resistant strip 13 respectively along the front side of rotating to (for dextrorotation veer in figure), the cross section angle of the first cutting edge 12 is 60 °, the external surface of lower segment of cutting 8 is circumferentially evenly equipped with four the second cutting edges 14, each second cutting edge 14 is welded with the second wear-resistant strip 15 respectively along the front side of rotating to (for being rotated counterclockwise direction in figure), the cross section angle of the second cutting edge 14 is 60 °, upper segment of cutting 4 is contrary with the rotation direction of lower segment of cutting 8, the design like this of upper segment of cutting 4 and lower segment of cutting 8, make instrument through same borehole wall place, the borehole wall will be subject to two kinds of antipodal cuttings in direction, well is repaired more abundant, thoroughly, first wear-resistant strip 13 is set and the second wear-resistant strip 15 is to strengthen the first cutting edge 12 respectively, the application life of the second cutting edge 14,
The cross-sectional diameter of the first linkage section 5 is less than the cross-sectional diameter of segment of cutting 4 and the cross-sectional diameter of lower segment of cutting 8, the external surface top of the first linkage section 5 connects stirs hammer 6, the external surface stirring hammer 6 is circumferentially evenly equipped with six grooves 16, the design of this groove 16 can realize the stirring to above returning drilling fluid further, the drilling cuttings after cutting is allowed to return along on its groove 16 direction, avoid in this sedimentation, the cross section of each bar groove 16 is back taper, its angle is 60 °, such design makes it have the similar functions of mixer Hoisting System, the outer of each groove 16 is respectively arranged with the 3rd wear-resistant strip 20 along cutting direction, the cross-sectional diameter stirring hammer 6 is greater than the cross-sectional diameter of the first linkage section 5, the external surface bottom of the first linkage section 5 connects fluid speedup bulb 7, fluid speedup bulb 7 is connect and compose up and down by the second Rotary-table 18 that the large bottom of the first Rotary-table 17 and top that little bottom, top is large is little, the bottom surface of the first Rotary-table 17 identical with the upper surface shape of the second Rotary-table 18 and the two overlap, the cross-sectional diameter of fluid speedup bulb 7 is greater than the cross-sectional diameter of the first linkage section 5, and be less than the cross-sectional diameter of segment of cutting 4 and lower segment of cutting 8, fluid speedup bulb 7 carries out speedup by the drilling fluid above returned, stir the drilling cuttings after cutting, avoid in this sedimentation,
The external surface of upper changeover portion 3 and the external surface of lower changeover portion 9 are inlaid with PDC tooth 19 respectively, the design like this of upper changeover portion 3 and lower changeover portion 19, when this instrument contacts with keyway, realize repairing the cutting of keyway, and to design PDC tooth 19 are objects in order to reach cutting.
The efficient well dressing tool of the present invention, when reality uses, at this instrument lower end serial connection 2-3 root drilling rod, can be connected in series this instrument in those drilling rod lower ends, improves the dressing efficiency of well afterwards again.
The above embodiment is only be described the preferred embodiment of the present invention; not scope of the present invention is limited; under not departing from the present invention and designing the prerequisite of spirit; the various distortion that the common engineers and technicians in this area make technical scheme of the present invention and improvement, all should fall in protection domain that claims of the present invention determine.
Claims (10)
1. an efficient well dressing tool, it is characterized in that: comprise segment of cutting, the lower end edge axis direction of described upper segment of cutting is connected with lower segment of cutting by the first linkage section, the upper end of described upper segment of cutting is connected with the first connector for being connected with well casing post, the lower end of described lower segment of cutting is connected with the second connector for being connected with well casing post, and the cross-sectional diameter of described first linkage section is less than the cross-sectional diameter of segment of cutting and the cross-sectional diameter of lower segment of cutting.
2. efficient well dressing tool as claimed in claim 1, is characterized in that: the external surface top of described first linkage section is connected with stirs hammer, and the described cross-sectional diameter stirring hammer is greater than the cross-sectional diameter of the first linkage section.
3. efficient well dressing tool as claimed in claim 2, it is characterized in that: the described external surface stirring hammer is circumferentially evenly equipped with six grooves, the cross section angle of each bar groove is 60 °, and each described groove outer is respectively arranged with the 3rd wear-resistant strip along cutting direction.
4. efficient well dressing tool as claimed in claim 2, it is characterized in that: the external surface bottom of described first linkage section is connected with fluid speedup bulb, the cross-sectional diameter of described fluid speedup bulb is greater than the cross-sectional diameter of the first linkage section, and is less than the cross-sectional diameter of segment of cutting and lower segment of cutting.
5. efficient well dressing tool as claimed in claim 4, it is characterized in that: described fluid speedup bulb by little the second Rotary-table in the large bottom of the first Rotary-table and top that little bottom, top is large in connecting and composing up and down, the bottom surface of described first Rotary-table identical with the upper surface shape of the second Rotary-table and the two overlap.
6. efficient well dressing tool as claimed in claim 1, it is characterized in that: the external surface of described upper segment of cutting is circumferentially evenly equipped with four the first cutting edges, on each first cutting edge along rotate to front side be respectively arranged with the first wear-resistant strip, the cross section angle of described first cutting edge is 60 °.
7. efficient well dressing tool as claimed in claim 6, it is characterized in that: the external surface of described lower segment of cutting is circumferentially evenly equipped with four the second cutting edges, on each second cutting edge along rotate to front side be respectively arranged with the second wear-resistant strip, the cross section angle of described second cutting edge is 60 °, and described upper segment of cutting is contrary with the rotation direction of lower segment of cutting.
8. efficient well dressing tool as claimed in claim 7, it is characterized in that: between described upper segment of cutting and the first connector, be connected with upper end compliant section, the cross-sectional diameter of described upper end compliant section is less than the cross-sectional diameter of segment of cutting and the cross-sectional diameter of the first connector, be connected with lower end compliant section between described lower segment of cutting and the second connector, the cross-sectional diameter of described lower end compliant section is less than the cross-sectional diameter of lower segment of cutting and the cross-sectional diameter of the second connector.
9. efficient well dressing tool as claimed in claim 8, it is characterized in that: between described upper end compliant section and upper segment of cutting, be connected with changeover portion, be connected with lower changeover portion between described lower end compliant section and lower segment of cutting, the external surface of described upper changeover portion and the external surface of lower changeover portion are inlaid with PDC tooth respectively.
10. efficient well dressing tool as claimed in claim 1, it is characterized in that: described first connector is box end, the second connector is pin end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420633274.XU CN204200136U (en) | 2014-10-30 | 2014-10-30 | Efficient well dressing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420633274.XU CN204200136U (en) | 2014-10-30 | 2014-10-30 | Efficient well dressing tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204200136U true CN204200136U (en) | 2015-03-11 |
Family
ID=52658105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420633274.XU Expired - Fee Related CN204200136U (en) | 2014-10-30 | 2014-10-30 | Efficient well dressing tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204200136U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105888592A (en) * | 2014-10-30 | 2016-08-24 | 新疆格瑞迪斯石油技术股份有限公司 | Efficient well hole trimming tool |
| CN109209277A (en) * | 2018-10-29 | 2019-01-15 | 中国石油集团渤海钻探工程有限公司 | Borehole wall trimmer |
-
2014
- 2014-10-30 CN CN201420633274.XU patent/CN204200136U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105888592A (en) * | 2014-10-30 | 2016-08-24 | 新疆格瑞迪斯石油技术股份有限公司 | Efficient well hole trimming tool |
| CN105888592B (en) * | 2014-10-30 | 2018-04-03 | 新疆格瑞迪斯石油技术股份有限公司 | Efficient well dressing tool |
| CN109209277A (en) * | 2018-10-29 | 2019-01-15 | 中国石油集团渤海钻探工程有限公司 | Borehole wall trimmer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150311 Termination date: 20191030 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |