CN204200083U - A kind of drill stem type is with the micro-hole reaming tool of brill - Google Patents
A kind of drill stem type is with the micro-hole reaming tool of brill Download PDFInfo
- Publication number
- CN204200083U CN204200083U CN201420559098.XU CN201420559098U CN204200083U CN 204200083 U CN204200083 U CN 204200083U CN 201420559098 U CN201420559098 U CN 201420559098U CN 204200083 U CN204200083 U CN 204200083U
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- wing
- drill string
- micro
- brill
- hole
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Abstract
The utility model relates to a kind of drill stem type in drilling tool field with the micro-hole reaming tool of brill, comprises threaded upper ends, back reaming wing, body, reamer wing, lower end screw thread.Instrument threaded upper ends can realize being connected with the direct of top rod; Lower end screw thread can realize being connected with the direct of bottom drilling rod; Reamer wing and back reaming wing are all set for the eccentric, and can pass through the relatively little borehole segments of size smoothly under drill string non-rotating state; In drilling process reamer wing be responsible for drill string with the micro-reaming hole of brill, pull out of hole be hampered time reamer wing be responsible for the back reaming of drill string.Tool construction is simple, safe and reliable, can be applicable to various horizontal well, extended reach well and there is creep reducing diameter complex formation well wellbore construction.
Description
Technical field
The utility model relates to a kind of drill stem type in drilling tool field with the micro-hole reaming tool of brill.
Background technology
Micro-reaming hole is for conventional reaming hole technology, and the hole enlargement ratio of conventional reaming hole is generally more than 18%, and the hole enlargement ratio of micro-reaming hole is defined as within 8%.Its application mainly contains two aspects: one is in the drilling process that there is the creep expansive stratums such as coal, salt cream, soft mudstone, shale, As time goes on the well formed can diminish fast or gradually, the lighter can cause making a trip abnormal difficult, severe one then can cause pipe sticking, once occur to cause increasing considerably of the prolongation in drillng operation cycle and cost; Two is in the drilling process of extended reach well net horizontal section, along with the increase of well depth, although formation fracture pressure keeps constant substantially, but annular circulation pressure consumption and ECD are in continuous increase, when displacement is enough large, ECD then may exceed the fracture pressure on stratum, causes leakage.
Although current domestic and international many companies successfully have developed various reaming while drilling instrument, ubiquity complex structure, problem such as dependence the pressure of the drill or hydraulic pressure etc.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, propose a kind of structure more simple, be convenient to execute-in-place, can long-time continuous underground work, high angle hole section can be adapted to and the drill stem type simultaneously with micro-reaming hole effect with the micro-hole reaming tool of brill.
The technical solution of the utility model
A kind of drill stem type is with the micro-hole reaming tool of brill, comprise the connecting thread at drill string body and drill string body two ends, be distributed with at least one group of reamer wing and one group of back reaming wing at the middle part of drill string body vertically, often organize wing and be distributed on drill string body by plural wing body circumference.
Such scheme comprises further
All wing bodies and drill string body all adopt integrated fixing, and the axes normal of one side elevation and drill string body, opposite side inclined-plane and drill string body arc transition, outside it, work plane is provided with carbide alloy cylinder, spherical PDC composite sheet.
Wing body two sides and outer work plane are cambered surface, and wing body and drill string body vertically shape form an angle, and two groups of wings are symmetrical.
The preferred 3-5 of wing body that often organizes wing, and be distributed on drill string body.
The utility model is domestic and international creep dilatancy bad ground and long horizontal sections horizontal well, extended reach well provides a kind of novel with the micro-hole reaming tool of brill, and this instrument has the following new design feature:
1, instrument upper/lower terminal is standard drill string button, upper/lower terminal leaves the length of dozen tong so that upper, the shackle operation of implementation tool, during use, can by instrument directly in any position of drill string, put impact by the length of the control tool post that realizes not being antagonistic.
2, the middle part of instrument is the reamer wing that upper and lower two groups of rotation directions are contrary, be responsible for respectively drill string descending period with brill micro-reaming hole and the back reaming of drill string up period.
3, often organize the difference of wing radial dimension, its eccentric nature can pass through the relatively little borehole segments of size smoothly by implementation tool in irrotational situation, under rotational case, then can realize micro-reaming hole function.
4, instrument is integral type structure, without any weldment and movable part.
Accompanying drawing explanation
Fig. 1 is that a kind of drill stem type is with the micro-hole reaming tool schematic diagram of brill
In figure: 1 threaded upper ends, 2 back reaming wings, 3 bodies, 4 reamer wings, 5 lower end screw threads.
Fig. 2 is that a kind of drill stem type is with the B-B sectional view bored in micro-hole reaming tool reamer wing schematic diagram and Fig. 1
Fig. 3 is that the A of Fig. 2 is to enlarged diagram
In figure: 4-1 reamer wing body, 4-2 carbide alloy cylinder, the spherical PDC composite sheet of 4-3.
Detailed description of the invention
It is existing that the utility model will be further described.
With reference to accompanying drawing 1, a kind of drill stem type, with the micro-hole reaming tool of brill, comprises threaded upper ends 1, back reaming wing 2, drill string body 3, reamer wing 4, lower end screw thread 5.Instrument threaded upper ends 1 can realize being connected with the direct of top rod; Lower end screw thread 5 can realize being connected with the direct of bottom drilling rod.Reamer wing 4 and back reaming wing 2 are all set for the eccentric, and can pass through the relatively little borehole segments of size smoothly under drill string non-rotating state; In drilling process reamer wing 4 be responsible for drill string with the micro-reaming hole of brill, pull out of hole be hampered time back reaming wing 2 be responsible for the back reaming of drill string; If do not need to consider its consideration to directional properties, instrument can be installed to any one position in drill string; Instrument itself produces pressure drop hardly; Instrument does not have particular/special requirement to drilling parameter.
With reference to accompanying drawing 2 and 3, wing comprises wing body 1, carbide alloy cylinder 2, spherical PDC composite sheet 3, and when drill string rotating, carbide alloy cylinder 2 and spherical PDC composite sheet 3 cut stratum.
Claims (4)
1. a drill stem type is with the micro-hole reaming tool of brill, comprise the connecting thread at drill string body and drill string body two ends, it is characterized in that: be distributed with at least one group of reamer wing and one group of back reaming wing vertically at the middle part of drill string body, often organize wing and be distributed on drill string body by plural wing body circumference.
2. drill stem type according to claim 1 is with the micro-hole reaming tool of brill, it is characterized in that: all wing bodies and drill string body all adopt integrated fixing, the axes normal of one side elevation and drill string body, opposite side inclined-plane and drill string body arc transition, outside it, work plane is provided with carbide alloy cylinder, spherical PDC composite sheet.
3. drill stem type according to claim 2 is with the micro-hole reaming tool of brill, and it is characterized in that: wing body two sides and outer work plane are cambered surface, wing body and drill string body vertically shape form an angle, and two groups of wings are symmetrical.
4. the drill stem type according to claim 1 or 2,3, with the micro-hole reaming tool of brill, is characterized in that: the preferred 3-5 of wing body that often organizes wing, and is distributed on drill string body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420559098.XU CN204200083U (en) | 2014-09-27 | 2014-09-27 | A kind of drill stem type is with the micro-hole reaming tool of brill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420559098.XU CN204200083U (en) | 2014-09-27 | 2014-09-27 | A kind of drill stem type is with the micro-hole reaming tool of brill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204200083U true CN204200083U (en) | 2015-03-11 |
Family
ID=52658052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420559098.XU Expired - Fee Related CN204200083U (en) | 2014-09-27 | 2014-09-27 | A kind of drill stem type is with the micro-hole reaming tool of brill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204200083U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106168116A (en) * | 2016-08-25 | 2016-11-30 | 中国石油集团渤海钻探工程有限公司 | With boring micro-reaming borehole wall dressing tool and using method thereof |
| CN106639882A (en) * | 2015-10-30 | 2017-05-10 | 中石化石油工程技术服务有限公司 | While-drilling micro hole opener in sliding drilling mode |
| CN107780836A (en) * | 2017-10-26 | 2018-03-09 | 中国石油天然气集团公司 | reamer |
| CN112523711A (en) * | 2019-09-19 | 2021-03-19 | 中国石油化工股份有限公司 | Bellows expansion tool |
| CN112627737A (en) * | 2020-11-30 | 2021-04-09 | 安东通奥科技产业股份有限公司 | Reaming tool |
| CN113492297A (en) * | 2021-07-01 | 2021-10-12 | 陈元 | Process for machining follow-up rotation cleaning scriber |
| CN115717513A (en) * | 2022-09-30 | 2023-02-28 | 中国石油天然气集团有限公司 | Deep well drilling method |
-
2014
- 2014-09-27 CN CN201420559098.XU patent/CN204200083U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106639882A (en) * | 2015-10-30 | 2017-05-10 | 中石化石油工程技术服务有限公司 | While-drilling micro hole opener in sliding drilling mode |
| CN106168116A (en) * | 2016-08-25 | 2016-11-30 | 中国石油集团渤海钻探工程有限公司 | With boring micro-reaming borehole wall dressing tool and using method thereof |
| CN106168116B (en) * | 2016-08-25 | 2018-12-25 | 中国石油集团渤海钻探工程有限公司 | With the micro- reaming borehole wall dressing tool of brill and its application method |
| CN107780836A (en) * | 2017-10-26 | 2018-03-09 | 中国石油天然气集团公司 | reamer |
| CN112523711A (en) * | 2019-09-19 | 2021-03-19 | 中国石油化工股份有限公司 | Bellows expansion tool |
| CN112627737A (en) * | 2020-11-30 | 2021-04-09 | 安东通奥科技产业股份有限公司 | Reaming tool |
| CN113492297A (en) * | 2021-07-01 | 2021-10-12 | 陈元 | Process for machining follow-up rotation cleaning scriber |
| CN115717513A (en) * | 2022-09-30 | 2023-02-28 | 中国石油天然气集团有限公司 | Deep well drilling method |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150311 Termination date: 20210927 |