CN203050542U - Drill rod with low friction - Google Patents
Drill rod with low friction Download PDFInfo
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- CN203050542U CN203050542U CN 201320067950 CN201320067950U CN203050542U CN 203050542 U CN203050542 U CN 203050542U CN 201320067950 CN201320067950 CN 201320067950 CN 201320067950 U CN201320067950 U CN 201320067950U CN 203050542 U CN203050542 U CN 203050542U
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- drilling rod
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Abstract
The utility model discloses a drill rod with low friction. The drill rod is a rotation structure which surrounds an axis, wherein a first end portion (1) and a second end portion (2) are respectively connected with two ends of a guide pipe (3) and form a circulation flow path (4). A concave cuttings discharge section (5), a protruding supporting section (6) and a turbulence section (7) are arranged on the outer surface of the first end portion (1), wherein the protruding supporting section (6) is continuous with the cuttings discharge section (5), the turbulence section (7) is continuous with the supporting section (6), and the cuttings discharge section (5) is far away from the guide pipe (3). A shaft hole (8) is formed in the free end of the first end portion (1), and an inner thread is arranged on the inner wall of the shaft hole (8). The structure of a second end portion is basically the same with that of the first end portion (1), a convex shaft (9) is arranged at the free end of the second end portion (2), and an outer thread is arranged on the outer surface of the convex shaft (9). The drill rod has the advantage of being low in friction when in well drilling.
Description
Technical field
The utility model relates to the oil drilling field, is specifically related to a kind of drilling rod.
Background technology
The bull stick that is used for the oil drilling field, its in the course of the work, drilling fluid can rise with respect to drilling rod is outside, thereby landwaste is brought to ground from the geologic structure layer that drilling rod bored.Yet existing drilling rod is owing to the restriction of its structure, and frictional force is big, and drilling fluid can't realize the up stream that follows effectively in the space between drilling rod and the borehole wall, thereby can not take away landwaste effectively, is an impediment to drilling rod feeding in well.Bigger frictional force also can make the drill tool assembly noticeable wear simultaneously, makes the borehole wall than quick-wearing, increases borehole diameter, increases the landwaste amount, further hinders feeding of drilling rod.
Wherein, probing frictional force is to influence drillng operation at the basic characteristic of quality, performance and secure context with the ability of taking away landwaste.Along with the increase day by day of drilling depth, it is good to be necessary to research and develop a kind of mechanical property and hydraulic characteristic, the drilling rod that frictional force is little.
The utility model content
The purpose of this utility model namely is to overcome the big deficiency of frictional force of prior art, provides a kind of axial friction low drilling rod.
The purpose of this utility model is achieved through the following technical solutions:
The drilling rod that a kind of frictional force is low, described drilling rod is the revolving structure around axis, described drilling rod comprises first end, the second end and conduit, and first end, the second end and conduit are hollow structure, and first end is connected and forms circulatory flow with the two ends of conduit respectively with the second end;
The external surface of first end is provided with the chip ejection segment thereupon of depression, and with the supporting section of the continuous projection of chip ejection segment thereupon, with the continuous flow-disturbing section of supporting section, chip ejection segment thereupon is away from conduit, and the free end of first end is provided with axis hole, has internal thread on the inwall of axis hole;
The external surface of the second end is provided with the chip ejection segment thereupon of depression, and with the supporting section of the continuous projection of chip ejection segment thereupon, with the continuous flow-disturbing section of supporting section, chip ejection segment thereupon is away from conduit, and the free end of the second end is provided with protruding axle, and the external surface of protruding axle has external screw thread.
Further, evenly be furnished with the groove for cuttings that a plurality of shapes are in the shape of a spiral arranged around described axis in the described chip ejection segment thereupon, groove for cuttings comprises the changeover portion that the degree of depth and width increase gradually successively along the direction of described conduit, smooth bottom, the tilting section that the degree of depth and width reduce gradually.
Further, described supporting section comprises the guide part A that diameter increases gradually successively along the direction of described conduit, support portion, the guide part B that diameter reduces gradually.
Further, the direction that the diameter of described flow-disturbing section prolongs described conduit reduces gradually, around what described axis was furnished with evenly that a plurality of shapes in the shape of a spiral arrange the flow-disturbing groove arranged on the flow-disturbing section, the flow-disturbing groove comprises successively that along the direction of described conduit the degree of depth and width increase preceding flow-disturbing section gradually, the back flow-disturbing section that semi-cylindrical bottom, the degree of depth and width reduce gradually.
Further, the quantity of described groove for cuttings is 8 or 9.
Further, the quantity of described flow-disturbing groove is 5 ~ 7.
Advantage of the present utility model is: by being arranged on chip ejection segment thereupon, supporting section and the flow-disturbing section on first end and the second end, can greatly reduce axial friction and rotation friction between drilling rod and the borehole wall, during drilling well, clear up whole well simultaneously, the talus deposit that elimination may occur in drilling process, can alleviate simultaneously the wearing and tearing of drilling well establishment and the wearing and tearing of the borehole wall, prolong the application life of equipment.
Description of drawings
In order to be illustrated more clearly in embodiment of the present utility model, will make simple explanation to the required accompanying drawing of using among description the utility model embodiment below.Apparent, the accompanying drawing in describing below only is some embodiment that put down in writing in the utility model, to those skilled in the art, under the situation of not paying creative work, can also obtain other accompanying drawing according to following accompanying drawing.
Fig. 1 is the structural representation of embodiment of the present utility model;
Fig. 2 is the sectional view of Fig. 1;
Fig. 3 is the axial sectional view of groove for cuttings;
Fig. 4 is the axial sectional view of flow-disturbing groove;
Wherein, the component name of Reference numeral correspondence is called:
The 1-first end, 2-the second end, 3-conduit, 4-circulatory flow, the 5-chip ejection segment thereupon, 6-supporting section, 7-flow-disturbing section, 8-axis hole, the protruding axle of 9-, 51-groove for cuttings, 511-changeover portion, the 512-bottom, 513-tilting section, 61-guide part A, the 62-support portion, 63-guide part B, 71-flow-disturbing groove, flow-disturbing section before the 711-, 712-bottom, flow-disturbing section behind the 713-.
The specific embodiment
In order to make those skilled in the art understand the utility model better, below in conjunction with the accompanying drawing among the utility model embodiment the technical scheme among the utility model embodiment is carried out clear, complete description.Apparent, embodiment described below only is the part among the utility model embodiment, rather than all.Based on the embodiment of the utility model record, other all embodiment that those skilled in the art obtain under the situation of not paying creative work are all in the scope of the utility model protection.
Embodiment:
As depicted in figs. 1 and 2, the drilling rod that a kind of frictional force is low, above-mentioned drilling rod is the revolving structure around axis, above-mentioned drilling rod comprises first end 1, the second end 2 and conduit 3, first end 1, the second end 2 and conduit 3 are hollow structure, and first end 1 is connected and forms circulatory flow 4 with the two ends of conduit 3 respectively with the second end 2.Wherein first end 1 and the second end 2 are welded on the two ends of conduit 3, and the external diameter of conduit 3 is less than the external diameter of first end 1 and the second end 2.
The external surface of first end 1 is provided with the chip ejection segment thereupon 5 of depression, with the supporting section 6 of the continuous projection of chip ejection segment thereupon 5, with the continuous flow-disturbing section 7 of supporting section 6, chip ejection segment thereupon 5 is away from conduit 3, the free end of first end 1 is provided with axis hole 8, has internal thread on the inwall of axis hole 8.Above-mentioned internal thread is used for connecting another drilling rod.
The external surface of the second end 2 is provided with the chip ejection segment thereupon 5 of depression, with the supporting section 6 of the continuous projection of chip ejection segment thereupon 5, with the continuous flow-disturbing section 7 of supporting section 6, chip ejection segment thereupon 5 is away from conduit 3, the free end of the second end 2 is provided with protruding axle 9, and the external surface of protruding axle 9 has external screw thread.Above-mentioned external screw thread is used for connecting another drilling rod.Thus, many drilling rods can be connected into the very long drilling rod group of length, satisfy long requirement apart from drilling well.
Above-mentioned supporting section 6 comprises the guide part A61 that diameter increases gradually successively along the direction of above-mentioned conduit 3, support portion 62, the guide part B63 that diameter reduces gradually.Support portion 62 is the turning circle column type, and guide part A61 and guide part B63 are circular for revolution, the circumscribed and support portion 62 of guide part A61 and guide part B63.Support portion 62 adopts the material higher than remaining part hardness to make, as tungsten carbide or chromium carbide.Support portion 62 is used for bearing the axial rub of rotation, and the profile of this supporting section 6 can make drilling fluid produce the effect of FDB, reduces friction.
As shown in Figure 3, evenly be furnished with the groove for cuttings 51 that a plurality of shapes are in the shape of a spiral arranged around above-mentioned axis in the above-mentioned chip ejection segment thereupon 5, groove for cuttings 51 comprises the changeover portion 511 that the degree of depth and width increase gradually successively along the direction of above-mentioned conduit 3, smooth bottom 512, the tilting section 513 that the degree of depth and width reduce gradually.In the drilling rod rotary course, fluid enters the inside of groove for cuttings 51, groove for cuttings 51 in the shape of a spiral shape arrange with and the profile shape, can guarantee its chip removal effect.The stream effect that follows of mud and landwaste when whole chip ejection segment thereupon 5 is used for guaranteeing drilling well, and drilling rod when rising to the scraping of the borehole wall.
As shown in Figure 4, the diameter of above-mentioned flow-disturbing section 7 reduces gradually along the direction of above-mentioned conduit 3, around what above-mentioned axis was furnished with evenly that a plurality of shapes in the shape of a spiral arrange flow-disturbing groove 71 arranged on the flow-disturbing section 7, flow-disturbing groove 71 comprises successively that along the direction of above-mentioned conduit 3 degree of depth and width increase preceding flow-disturbing section 711 gradually, the back flow-disturbing section 713 that semi-cylindrical bottom 712, the degree of depth and width reduce gradually.Flow-disturbing section 7 can increase the axial velocity of mud, thereby increases the stream effect that follows of mud, guarantees that landwaste and mud can be discharged from.
The quantity of above-mentioned groove for cuttings 51 is 8 or 9, and present embodiment is preferably 8.
The quantity of above-mentioned flow-disturbing groove 71 is 5 ~ 7, and present embodiment is preferably 6.
As mentioned above, just can realize the utility model preferably.
Claims (6)
1. drilling rod that frictional force is low, it is characterized in that: described drilling rod is the revolving structure around axis, described drilling rod comprises first end (1), the second end (2) and conduit (3), first end (1), the second end (2) and conduit (3) are hollow structure, and first end (1) is connected and forms circulatory flow (4) with the two ends of conduit (3) respectively with the second end (2);
The external surface of first end (1) is provided with the chip ejection segment thereupon (5) of depression, supporting section (6) with the continuous projection of chip ejection segment thereupon (5), with the continuous flow-disturbing section (7) of supporting section (6), chip ejection segment thereupon (5) is away from conduit (3), the free end of first end (1) is provided with axis hole (8), has internal thread on the inwall of axis hole (8);
The external surface of the second end (2) is provided with the chip ejection segment thereupon (5) of depression, supporting section (6) with the continuous projection of chip ejection segment thereupon (5), with the continuous flow-disturbing section (7) of supporting section (6), chip ejection segment thereupon (5) is away from conduit (3), the free end of the second end (2) is provided with protruding axle (9), and the external surface of protruding axle (9) has external screw thread.
2. the low drilling rod of a kind of frictional force according to claim 1, it is characterized in that: evenly be furnished with the groove for cuttings (51) that a plurality of shapes are in the shape of a spiral arranged around described axis in the described chip ejection segment thereupon (5), groove for cuttings (51) comprises the changeover portion (511) that the degree of depth and width increase gradually successively along the direction of described conduit (3), smooth bottom (512), the tilting section that the degree of depth and width reduce gradually (513).
3. the low drilling rod of a kind of frictional force according to claim 1, it is characterized in that: described supporting section (6) comprises the guide part A(61 that diameter increases gradually successively along the direction of described conduit (3)), support portion (62), the guide part B(63 that diameter reduces gradually).
4. the low drilling rod of a kind of frictional force according to claim 1, it is characterized in that: the diameter of described flow-disturbing section (7) reduces gradually along the direction of described conduit (3), flow-disturbing section (7) goes up around what described axis was furnished with evenly that a plurality of shapes in the shape of a spiral arrange a flow-disturbing groove (71), flow-disturbing groove (71) comprises successively that along the direction of described conduit (3) degree of depth and width increase preceding flow-disturbing section (711) gradually, the back flow-disturbing section (713) that semi-cylindrical bottom (712), the degree of depth and width reduce gradually.
5. the low drilling rod of a kind of frictional force according to claim 2, it is characterized in that: the quantity of described groove for cuttings (51) is 8 or 9.
6. the low drilling rod of a kind of frictional force according to claim 4, it is characterized in that: the quantity of described flow-disturbing groove (71) is 5 ~ 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320067950 CN203050542U (en) | 2013-02-06 | 2013-02-06 | Drill rod with low friction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320067950 CN203050542U (en) | 2013-02-06 | 2013-02-06 | Drill rod with low friction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203050542U true CN203050542U (en) | 2013-07-10 |
Family
ID=48733507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320067950 Expired - Fee Related CN203050542U (en) | 2013-02-06 | 2013-02-06 | Drill rod with low friction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203050542U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103510867A (en) * | 2013-09-23 | 2014-01-15 | 河南科技大学 | Triangular drill rod |
-
2013
- 2013-02-06 CN CN 201320067950 patent/CN203050542U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103510867A (en) * | 2013-09-23 | 2014-01-15 | 河南科技大学 | Triangular drill rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130710 Termination date: 20140206 |