CN204252864U - A kind of drilling tool - Google Patents
A kind of drilling tool Download PDFInfo
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- CN204252864U CN204252864U CN201420387188.5U CN201420387188U CN204252864U CN 204252864 U CN204252864 U CN 204252864U CN 201420387188 U CN201420387188 U CN 201420387188U CN 204252864 U CN204252864 U CN 204252864U
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Abstract
A kind of drilling tool, comprises drilling tool body and is connected to male end joint and the female end joint at drilling tool body two ends; Drilling tool body is provided with at least two sections of waterpower and cleans helicla flute, each waterpower cleans helicla flute and is provided with at least twice annular wear-resistant strip.Adopt drilling tool of the present utility model, in drilling process, drilling fluid can produce the power of stirring mud in by spiral fluted process, cutting bed is removed, and effectively prevents the generation of cutting bed.
Description
Technical field
The utility model relates to drilling tool, talus deposit and Cutting Disposal during in particular for horizontal well/extended reach well special for reducing drillng operation and a kind of drilling tool of designing and developing.
Background technology
Major part horizontal well, extended reach well landwaste in drilling process carry difficulty and easily form cutting bed and affect the normal circulation of drilling fluid and cause and suppress pump bit bouncing problem.In addition after termination of pumping, in well, the easy shoulder sand bridge that formed of landwaste sinking causes sand card or glutinous card, has a strong impact on drilling safety and drilling effect.Therefore Cutting Disposal is problem demanding prompt solution timely and effectively.Along with the development of drilling technology, the exploitation of low permeability oil field is more and more adopts complex structural well.But the problem of complex structural well cementing quality difference have impact on the application of its further genralrlization.The key factor affecting complex structural well cementing quality there is cutting bed in inclination and net horizontal section, it not only can make drill string torque increase suddenly in drilling process, even make a body landslide be formed to pile up, affect rate of penetration, bit freezing is caused time serious, and setting of casing, well cementing operation difficulty can be made, cause completion cementing quality defective, shorten the oil well life-span.
Traditional solution as " high sticky drilling fluid plug ", improve rotating speed, increase discharge capacity, add people's sliding agent etc. drawn to an end fashion at wellbore construction can an examination, if but also having the well of large section to be drilled, these methods are just difficult to solve the cutting bed harm problem that may occur at any time.Big inclination/angle drilling should only not consider the problem removing drilling cuttings, importantly how to remove the drilling cuttings deposition bed of well low side.In normal drilling process, the formation of High angle section cutting bed is difficult to avoid, and can increase gradually with the prolongation of drilling time.Dispose the cutting bed having formed harm within a certain period of time, what can ensure to continue to creep into carries out smoothly.
Current Cutting Disposal method mainly contains " improve annular space and return speed ", " raising rod rotation speed ", " improving property of drilling fluid ", frequently " short trip ", " mechanical removal " etc.Improve annular space and return the restriction that speed is not only subject to power of slush pump, but also excessively washing away of the borehole wall can be caused.Improve the elimination efficiency that rod rotation speed can improve cutting bed, but it is subject to the restriction of drillng operation design parameters, also can cause the inefficacy of drilling tool.Improve property of drilling fluid also limited to the elimination effect of landwaste, and the extraordinary drilling fluid of design and application needs to drop into a large amount of expenses.Though adopt mechanical removal method can play bits effect clearly but want the expensive time, round trip has a strong impact on the efficiency of creeping into.
Utility model content
The purpose of this utility model, exactly in order to solve the problem, provides a kind of drilling tool.Hydraulic hole cleaning device can be coordinated to carry out the removing of cutting bed.
In order to achieve the above object, the utility model have employed following technical scheme: a kind of drilling tool, comprises drilling tool body and is connected to male end joint and the female end joint at drilling tool body two ends; Drilling tool body is provided with at least two sections of waterpower and cleans helicla flute.
Each waterpower cleans helicla flute and is provided with at least twice annular wear-resistant strip.
Described waterpower cleans spiral fluted lead and cutting-in according to the change in size of different drilling tool.
The beneficial effects of the utility model are:
1) hydrodynamic performance of drilling tool itself can be improved under the prerequisite not changing drilling tool mechanical performance, for drilling fluid provide lift upwards and promote mud take husky ability.
2) ensure that the structure of drilling tool, do not affect the versatility of this type of drilling tool, the versatility between drilling tool is provided great convenience.
3) cleaning efficiency is improved: Cuttings bed thickness can reduce 30% ~ 50% under specific drilling fluid flow velocity, and the erosion rate of cutting bed can improve more than 40% under specific rotating speed.
4) save drilling time: time and the number of times of repeatedly clearing up cutting bed can reduce more than 50%, can reduce or eliminate backreaming, improve rate of penetration.
5) frictional resistance is improved: moment of torsion and lifting load can reduce more than 40%; The pressure loss can reduce more than 50%.
6) reduce the degree of down-hole failure risk and eliminate differential sticking.
7) reduce well damage good well cementation environment is provided and provides good the pressure of the drill for drill bit.
8) reduce cutting bed Clean-time and the cost of operation.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model drilling tool.
Detailed description of the invention
See Fig. 1, drilling tool of the present utility model, comprises drilling tool body 1 and is connected to male end joint and the female end joint 2 at drilling tool body two ends; Drilling tool body is provided with at least two sections of (the present embodiment is two sections) waterpower and cleans helicla flute 3.
Each waterpower cleans helicla flute and is provided with at least twice (the present embodiment is twice) annular wear-resistant strip 4.
Waterpower in the utility model cleans spiral fluted lead and cutting-in according to the change in size of different drilling tool.
Spiral fluted length can change according to the length of drilling tool and to the requirement of waterpower cleaning performance;
The Working position of wear-resistant strip and quantity will be cleaned spiral fluted length according to waterpower and design and meet waterpower cleaning object to greatest extent and the object preventing helicla flute from wearing and tearing near male joint, female joint in the hope of reaching;
Drilling tool wall ratio heavy weight drill pipe wall thickness of the present utility model is thin, concrete thickness needs to reach the requirement of drilling tool to performance by calculating, and client can be met the excessive impact on orientation of rigidity and weight are prevented greatly on the impact of mill resistance to drilling tool when horizontal segment uses, reach simultaneously and the clean object of waterpower is carried out to different well section.
Adopt drilling tool of the present utility model, in drilling process, drilling fluid can produce the power of stirring mud in by spiral fluted process, cutting bed is removed, and effectively prevents the generation of cutting bed.And the parameter (such as revolution, standpipe pressure, casing programme etc.) of drilling well can not be affected simultaneously, the efficiency of drilling well is had a certain upgrade, has saved the cost of drilling well.
Claims (2)
1. a drilling tool, comprises drilling tool body and is connected to male end joint and the female end joint at drilling tool body two ends; It is characterized in that: on drilling tool body, be provided with at least two sections of waterpower clean helicla flute; Each waterpower cleans helicla flute and is provided with at least twice annular wear-resistant strip.
2. drilling tool as claimed in claim 1, is characterized in that: described waterpower cleans spiral fluted lead and cutting-in according to the change in size of different drilling tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420387188.5U CN204252864U (en) | 2014-07-14 | 2014-07-14 | A kind of drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420387188.5U CN204252864U (en) | 2014-07-14 | 2014-07-14 | A kind of drilling tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204252864U true CN204252864U (en) | 2015-04-08 |
Family
ID=52957184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420387188.5U Active CN204252864U (en) | 2014-07-14 | 2014-07-14 | A kind of drilling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204252864U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109882094A (en) * | 2019-04-12 | 2019-06-14 | 奥瑞拓能源科技股份有限公司 | Self-propelled drill pipe tool |
| CN110374523A (en) * | 2019-07-08 | 2019-10-25 | 山西风雷钻具有限公司 | " cutting bed removes heavy weight drill pipe to one kind 4.5 |
| CN112901085A (en) * | 2021-01-22 | 2021-06-04 | 江苏曙光华阳钻具有限公司 | Weighted drill rod with well cleaning function |
-
2014
- 2014-07-14 CN CN201420387188.5U patent/CN204252864U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109882094A (en) * | 2019-04-12 | 2019-06-14 | 奥瑞拓能源科技股份有限公司 | Self-propelled drill pipe tool |
| CN110374523A (en) * | 2019-07-08 | 2019-10-25 | 山西风雷钻具有限公司 | " cutting bed removes heavy weight drill pipe to one kind 4.5 |
| CN112901085A (en) * | 2021-01-22 | 2021-06-04 | 江苏曙光华阳钻具有限公司 | Weighted drill rod with well cleaning function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |