CN118167213A - Rock-soil drill bit - Google Patents
Rock-soil drill bit Download PDFInfo
- Publication number
- CN118167213A CN118167213A CN202410607131.XA CN202410607131A CN118167213A CN 118167213 A CN118167213 A CN 118167213A CN 202410607131 A CN202410607131 A CN 202410607131A CN 118167213 A CN118167213 A CN 118167213A
- Authority
- CN
- China
- Prior art keywords
- sleeve
- shaft section
- drill bit
- cutting
- blocking
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002689 soil Substances 0.000 title claims abstract description 14
- 230000000903 blocking effect Effects 0.000 claims abstract description 60
- 230000005489 elastic deformation Effects 0.000 claims abstract description 3
- 239000011435 rock Substances 0.000 claims description 26
- 230000001681 protective effect Effects 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 description 18
- 238000005553 drilling Methods 0.000 description 7
- 230000008602 contraction Effects 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 238000011010 flushing procedure Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Abstract
The invention discloses a rock-soil drill bit, which comprises a drill bit body and a plurality of cutters arranged on the drill bit body, wherein each cutter comprises: a retaining sleeve for securing to the bit body; a cutting body including a body member, a disk-shaped cutter body formed at a head of the body member, an edge of the disk-shaped cutter body being used for cutting work; the main body part extends into the retaining sleeve and can stretch and retract relative to the retaining sleeve; the elastic blocking component is arranged between the main body component and the retaining sleeve, and when the axial force born by the cutting body is greater than the preset axial force, the elastic blocking component releases blocking of the main body component through elastic deformation so that the cutting body is retracted from a first position to a second position; a return spring disposed between the main body member and the retaining sleeve for returning the cutting body from the second position to the first position.
Description
Technical Field
The invention relates to the technical field of drilling engineering, in particular to a rock-soil drill bit.
Background
Rock and earth drill bits for transverse and vertical drilling generally include a bit body and a plurality of cutters mounted on an outer circumferential surface of the bit body and protruding radially, the bit body rotating the cutters to cut rock and earth, thereby achieving drilling.
During the drilling process of the drill bit, a pure hard layer such as a rock layer and a mixed layer such as rock and soil exist simultaneously are often encountered, when the drill bit cuts the rock of the geological layer, the abrasion speed of a cutter on the drill bit is increased, two modes are adopted in the prior art to reduce the cutting amount of the cutter on the rock for reducing the abrasion speed, the first mode is to arrange a telescopic hydraulic pushing component at the front end of the drill bit to control the invasion depth of the cutter on the geological layer (the mode is disclosed in the prior patent of the applicant), and the second mode is to arrange the cutter into a telescopic structure, and the cutter is actively or adaptively retracted to reduce the cutting amount when encountering the geological layer.
The second way to reduce the amount of cutting includes two ways to control the expansion and contraction of the cutter:
The first way to control the retraction of the cutter is: the expansion and contraction of the cutters are controlled by means of a hydraulic system, which in particular reduces the pressure when the cutters are subjected to the geological formation, so that the cutters retract under the reaction force of the rock to cut the rock with a smaller cutting amount, however, this has the disadvantage that a hydraulic control flow path needs to be built for each cutter, which tends to increase the structural complexity of the drill bit.
The second way to control the telescoping is: pushing the cutter with a spring, when encountering the geological formation, the reaction force of the rock causes the spring to yield so as to retract the cutter, and the drill bit in this way has a relatively simple structure and is easier to manufacture, however, the disadvantage of this way is that: when the drill bit drills in a mixed layer, the cutters alternately encounter rock and soil, resulting in high frequency expansion and contraction of the cutters, which not only affects the stability of the drill bit rotation, but also tends to cause spring failure.
In addition, the angle between the axis of the cutter with the telescopic function and the tangent line of the peripheral surface included in the rotation of the drill bit is small, which results in: the amount of cutting reduced by the retracting unit expansion amount is smaller.
Disclosure of Invention
Aiming at the technical problems in the prior art, the embodiment of the invention provides a rock-soil drill bit.
In order to solve the technical problems, the technical scheme adopted by the embodiment of the invention is as follows:
A rock drill bit comprising a bit body and a plurality of cutters mounted on the bit body, each of the cutters comprising:
a retaining sleeve for securing to the bit body;
A cutting body including a body member, a disk-shaped cutter body formed at a head of the body member, an edge of the disk-shaped cutter body being used for cutting work; the main body part extends into the retaining sleeve and can stretch and retract relative to the retaining sleeve;
the elastic blocking component is arranged between the main body component and the retaining sleeve, and when the axial force born by the cutting body is greater than the preset axial force, the elastic blocking component releases blocking of the main body component through elastic deformation so that the cutting body is retracted from a first position to a second position;
A return spring disposed between the main body member and the retaining sleeve for returning the cutting body from the second position to the first position.
Preferably, the cutting body is configured to: the axis of the disc cutter body and the axis of the main body part form an included angle.
Preferably, the method comprises the steps of,
The elastic blocking component is an elastic blocking sleeve; the elastic blocking sleeve is provided with an annular fold blocking table;
The main body part of the cutting body comprises a first shaft section and a second shaft section, the radial dimension of the first shaft section is larger than that of the second shaft section, so that a shaft shoulder is formed between the first shaft section and the second shaft section, and the shaft shoulder is used for stopping a fold blocking table on the elastic blocking sleeve;
The elastic blocking sleeve is fixed at one end of the first shaft section, and the elastic blocking sleeve is released at one end of the second shaft section;
When the axial force born by the cutting body is greater than the preset axial force, the shaft shoulder of the main body part forces the fold blocking table of the elastic blocking sleeve to deform and flatten, so that the elastic blocking sleeve releases the limit on the cutting body, and the cutting body is retracted from the first position to the second position.
Preferably, the elastic blocking sleeve is provided with a spiral groove which extends spirally on a sleeve wall at one side of the second shaft section, so that the elastic blocking sleeve at one side of the second shaft section can stretch and deform to adapt to the deformation of the fold blocking table.
Preferably, annular notches are machined in the inner and outer sleeve walls of the edges of the fold blocking platform so that the fold blocking platform is flattened or reset by deforming at the annular notches.
Preferably, a positioning disc is formed at the end part of the elastic blocking sleeve, which is positioned at the first shaft section;
and a lining is fixed in the retaining sleeve, and the inner end of the lining is pressed against the positioning disc to be used for fixing the end part of the elastic blocking sleeve.
Preferably, an annular clamping groove is formed in the first shaft section, and an expansion sleeve is sleeved on the annular clamping groove; and a limiting step is arranged at the position, opposite to the annular clamping groove, of the bushing, and the end part of the expansion sleeve radially expands to be abutted against the limiting step so as to limit the cutting body from being separated from the retaining sleeve.
Preferably, the return spring is mounted between the bottom of the retaining sleeve and the second shaft section.
Preferably, a stud is machined at the end of the retaining sleeve, and the stud is used for being screwed into the hole bottom of the mounting hole of the drill bit body.
Preferably, a protective sleeve is arranged in a region between the main body part and the disc-shaped cutter body, and the protective sleeve is coated on the outer side of the retaining sleeve.
Compared with the prior art, the rock-soil drill bit disclosed by the invention has the beneficial effects that:
1. the invention can obviously reduce the expansion and contraction frequency of the cutting body when the drill drills in the mixed geological formation, thereby improving the drilling stability of the drill and reducing the abrasion speed of related parts.
2. Other key advantages of the present invention are set forth directly and implicitly in the detailed description which follows.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
An overview of various implementations or examples of the technology described in this disclosure is not a comprehensive disclosure of the full scope or all of the features of the technology disclosed.
Drawings
In the drawings, which are not necessarily drawn to scale, like numerals may describe similar components in different views. The same reference numerals with letter suffixes or different letter suffixes may represent different instances of similar components. The accompanying drawings illustrate various embodiments by way of example in general and not by way of limitation, and together with the description and claims serve to explain the inventive embodiments. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts. Such embodiments are illustrative and not intended to be exhaustive or exclusive of the present apparatus or method.
Fig. 1 is a schematic perspective view of a rock drill bit according to an embodiment of the present invention.
Fig. 2 is a schematic plan view of a rock drill bit according to an embodiment of the present invention.
Fig. 3 is a cross-sectional view A-A of fig. 2.
Fig. 4 is a schematic perspective view of a cutter in a rock drill bit according to an embodiment of the present invention.
Fig. 5 is a front cross-sectional view of a cutter in a rock drill bit provided by an embodiment of the present invention.
Fig. 6 is a view showing a state of cutting a geological formation when a cutting body in a cutter of a rock-soil drill bit according to an embodiment of the present invention is in a first position.
Fig. 7 is a view showing a state of cutting a geological layer when a cutting body in a cutter of a rock-soil drill bit according to an embodiment of the present invention is in a second position.
Reference numerals:
100-cutter 100; 10-a retaining sleeve 10; 11-studs 11; 20-cutting body 20; 21-a disc cutter body 21; 22-a body part; 221-a first shaft section; 222-a second shaft section; 223-shaft shoulder; 224-annular clamping groove; 225-protecting sleeve; 30-an elastic blocking sleeve; 31-a fold blocking table; 32-an annular gap; 33-helical groove; 34-positioning plate; 40-bushing; 41-limiting steps; 50-expanding sleeve; 60-return spring; 200-bit body; 201-a protuberance; 202, a chip guiding groove; 203-flushing the pore canal; 204-tail; 1000-geological layers.
Detailed Description
Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The terms "first," "second," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.
In order to keep the following description of the embodiments of the present invention clear and concise, the detailed description of known functions and known components thereof have been omitted.
Embodiments of the present invention disclose a rock-soil drill bit suitable for drilling a geological formation 1000 having rock, and particularly suitable for drilling a geological formation 1000 mixed with rock and soil.
As shown in fig. 1 to 5, the earth-boring bit includes a bit body 200 and a plurality of cutters 100 mounted on the bit body 200. The bit body 200 has a tapered tail 204, the tapered tail 204 for threading with a drill rod for rotation by the drill rod drive; the drill bit body 200 is circumferentially provided with a plurality of protuberances 201, a plurality of cutters 100 are arranged along the side edge of each protuberance 201, and when the drill bit body 200 rotates, the cutters 100 cut the geological formation 1000 along with the rotation of the drill bit body 200; a groove is defined between each adjacent two of the ridges 201, the groove being a chip guiding groove 202, and chips cut by the cutter 100 being led back through the chip guiding grooves 202, each chip guiding groove 202 having a through flushing channel 203, and fluid (e.g., slurry) flowing out of the flushing channel 203 being used to flush the chips in the guiding groove for a timely and smooth backward flow of the chips.
A plurality of mounting holes are formed in the boss 201 along a side thereof at intervals, and the cutter 100 is mounted in the mounting holes, and specifically, the cutter 100 includes: a retaining sleeve 10, a cutting body 20, an elastic blocking sleeve 30, a bushing 40, and a return spring 60. The tail of the retaining sleeve 10 is machined with a stud 11, the retaining sleeve 10 is inserted into the mounting hole, the stud 11 is screwed into the bit body 200 by screwing, in some preferred constructions, a pin (not shown) is screwed onto the boss 201 to abut the retaining sleeve 10 to limit rotation of the retaining sleeve 10; the bush 40 is embedded into the retaining sleeve 10 from the head of the retaining sleeve 10, and the end face of the head of the bush 40 abuts against the end face of the head of the retaining sleeve 10; the elastic blocking sleeve 30 is fitted into the holding sleeve 10, the head of the elastic blocking sleeve 30 is formed with a positioning disk 34, the positioning disk 34 is abutted against the step of the holding sleeve 10, and the tail of the bush 40 is abutted against the positioning disk 34, so that the elastic blocking sleeve 30 is fixed by the bush 40.
The elastic blocking sleeve 30 is made of a high-elasticity titanium alloy material with high thermal stability, the middle part of the elastic blocking sleeve 30 is processed with the fold blocking platform 31 in a stamping mode, the inner diameter of the fold blocking platform 31 is smaller than that of the elastic blocking sleeve 30 in other areas, so that the fold blocking platform 31 has a stopping effect, and when the fold blocking platform 31 receives certain axial force of the columnar component, the columnar component can enable the fold structure of the fold blocking platform 31 to be flattened, and the columnar component is allowed to pass through.
The cutting body 20 includes a main body part 22 and a disc cutter body 21 integrally formed at a head of the main body part 22, the disc cutter body 21 being made of a thermally stable, strong, high-hardness material, for example, high-hardness alloy steel, the disc cutter body 21 being an execution part for cutting the geological formation 1000; the main body 22 is inserted into the retaining sleeve 10, and the main body 22 has a first shaft section 221 and a second shaft section 222, the radial dimension of the first shaft section 221 is larger than that of the second shaft section 222, thus, a shaft shoulder 223 is arranged between the second shaft section 222 and the first shaft section 221, and the shaft shoulder 223 faces the fold blocking table 31 of the elastic blocking sleeve 30 and is blocked on the fold blocking table 31. As shown in fig. 6, when the earth-boring bit drills in the geological formation 1000, the axial component of the resistance of the geological formation 1000 to the cutting body 20 is insufficient to cause the shoulder 223 of the main body member 22 to force the buckling block 31 to deform, the buckling block 31 restricts the cutting body 20 from retracting, the cutting body 20 is at the first position at this time, and the cutting body 20 drills in the geological formation 1000 with a larger cutting amount H1; as shown in fig. 7, when the earth-rock drill bit drills in the geological formation 1000, the axial component of the resistance of the geological formation 1000 to the cutting body 20 causes the shoulder 223 of the body member 22 to force the buckling resistance to elastically deform, at which time the buckling resistance table 31 is flattened, so that the buckling resistance table 31 releases the restriction of the cutting body 20, at which time the cutting body 20 is retracted to the second position, and the cutting body 20 drills in the geological formation 1000 with a smaller cutting amount H2.
It should be noted that: before the pleat block 31 of the elastic block is flattened, the pleat block 31 can provide a larger impedance to enable the cutting body 20 to be stably maintained in the first position, so as to drill in the geological formation 1000 with a larger cutting amount, and once the pleat block 31 is flattened, the first shaft section 221 passes through the area where the pleat block 31 is located, the impedance of the cutting body 20 becomes small (only a small impedance is provided by the return spring 60 to be described later) by the elastic block sleeve 30, and at this time, the cutting body 20 is stabilized in the second position. This feature of the cutting body 20 is particularly advantageous when cutting a hybrid geological formation 1000, particularly because: as the cutter 100 alternately passes through rock and soil as the bit body 200 rotates, the cutting body 20 is stabilized in the second position to cut it, so that the frequency of expansion and contraction of the cutting body 20 can be significantly reduced.
A return spring 60 is provided between the end of the second shaft section 222 of the main body member 22 and the bottom of the retaining sleeve 10, the return spring 60 not being dedicated to providing resistance to the cutting body 20, but rather being used to provide a return to the cutting body 20, i.e. to return the cutting body 20 from the second position to the first position, so that the cutting body 20 stabilizes in the first position and cuts a soft geological formation 1000 as it is drilled in.
In some preferred constructions, the resilient clip 30 is cut with a helically extending helical groove 33 in the sleeve wall on the side of the second shaft section 222 of the body member 22 so that the sleeve wall forms a spring structure that adapts by contraction to the deformation of the pleat block 31 and assists in resilient return of the pleat block 31 by resilient return.
In some preferred constructions, annular notches 32 are machined into the inner and outer jacket walls of the edges of the pleat block 31 so that the pleat block 31 flattens or resets by deforming at the annular notches 32, rather than having to flatten or reset by deforming in other areas.
The first shaft section 221 is provided with an annular clamping groove 224, and the annular clamping groove 224 is sleeved with an expansion sleeve 50; the bushing 40 is provided with a limiting step 41 at a position opposite to the annular clamping groove 224, and the end of the expansion sleeve 50 radially expands to abut against the limiting step 41 to limit the cutting body 20 from being separated from the retaining sleeve 10, which is beneficial to realizing quick assembly of the cutting body 20.
In some preferred constructions, a protective sheath 225 is disposed in the region between the body member 22 and the disc cutter body 21, the protective sheath 225 being wrapped around the outside of the retention sleeve 10.
One embodiment of the present invention provides a preferred configuration of the cutting body 20 that facilitates a substantial reduction in the amount of cutting of the geological formation 1000 by the discal blade body 21 after the cutting body 20 is switched from the first position to the second position. Specifically, the structure of the cutting body 20 is configured to: the axis of the disc cutter body 21 forms an angle with the axis of the main body member 22, and thus, the axis of the disc cutter body 21 forms an angle with the telescopic axis of the cutting body 20, so that the amount of cutting per unit retraction is increased compared to the cutting body 20 in which the disc cutter body 21 and the main body member 22 are coaxial (or parallel) in the prior art, which makes it unnecessary to configure the cutting body 20 for a larger telescopic stroke.
The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention, the scope of which is defined by the claims. Various modifications and equivalent arrangements of this invention will occur to those skilled in the art, and are intended to be within the spirit and scope of the invention.
Claims (10)
1. A rock drill bit comprising a bit body and a plurality of cutters mounted on the bit body, wherein each of the cutters comprises:
a retaining sleeve for securing to the bit body;
A cutting body including a body member, a disk-shaped cutter body formed at a head of the body member, an edge of the disk-shaped cutter body being used for cutting work; the main body part extends into the retaining sleeve and can stretch and retract relative to the retaining sleeve;
the elastic blocking component is arranged between the main body component and the retaining sleeve, and when the axial force born by the cutting body is greater than the preset axial force, the elastic blocking component releases blocking of the main body component through elastic deformation so that the cutting body is retracted from a first position to a second position;
A return spring disposed between the main body member and the retaining sleeve for returning the cutting body from the second position to the first position.
2. The rock drill bit of claim 1, wherein the cutting body is configured to: the axis of the disc cutter body and the axis of the main body part form an included angle.
3. The earth-boring drill bit of claim 1,
The elastic blocking component is an elastic blocking sleeve; the elastic blocking sleeve is provided with an annular fold blocking table;
The main body part of the cutting body comprises a first shaft section and a second shaft section, the radial dimension of the first shaft section is larger than that of the second shaft section, so that a shaft shoulder is formed between the first shaft section and the second shaft section, and the shaft shoulder is used for stopping a fold blocking table on the elastic blocking sleeve;
The elastic blocking sleeve is fixed at one end of the first shaft section, and the elastic blocking sleeve is released at one end of the second shaft section;
When the axial force born by the cutting body is greater than the preset axial force, the shaft shoulder of the main body part forces the fold blocking table of the elastic blocking sleeve to deform and flatten, so that the elastic blocking sleeve releases the limit on the cutting body, and the cutting body is retracted from the first position to the second position.
4. A rock drill bit according to claim 3, wherein the resilient blocking sleeve is provided with a helically extending helical groove cut in the sleeve wall on one side of the second shaft section to enable the resilient blocking sleeve on one side of the second shaft section to be deformed in a telescopic manner to accommodate deformation of the corrugated blocking table.
5. A geotechnical drill according to claim 3, wherein annular notches are machined in the inner and outer casing walls of the edges of the pleat block so that the pleat block flattens or resets by deforming at the annular notches.
6. A rock drill bit according to claim 3, wherein a locating disc is formed at the end of the first shaft section of the elastic blocking sleeve;
and a lining is fixed in the retaining sleeve, and the inner end of the lining is pressed against the positioning disc to be used for fixing the end part of the elastic blocking sleeve.
7. The rock-soil drill bit of claim 6, wherein the first shaft section is provided with an annular clamping groove, and an expansion sleeve is sleeved on the annular clamping groove; and a limiting step is arranged at the position, opposite to the annular clamping groove, of the bushing, and the end part of the expansion sleeve radially expands to be abutted against the limiting step so as to limit the cutting body from being separated from the retaining sleeve.
8. A rock drill bit according to claim 3, wherein the return spring is mounted between the bottom of the retaining sleeve and the second shaft section.
9. A rock drill bit according to claim 1, wherein the end of the retaining sleeve is machined with a stud for threading into the bottom of the mounting hole of the bit body.
10. A rock drill bit according to claim 3, wherein a protective sleeve is arranged in the region between the body part and the disc cutter body, the protective sleeve being wrapped around the outside of the retaining sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410607131.XA CN118167213B (en) | 2024-05-16 | 2024-05-16 | Rock-soil drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410607131.XA CN118167213B (en) | 2024-05-16 | 2024-05-16 | Rock-soil drill bit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN118167213A true CN118167213A (en) | 2024-06-11 |
| CN118167213B CN118167213B (en) | 2024-07-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410607131.XA Active CN118167213B (en) | 2024-05-16 | 2024-05-16 | Rock-soil drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118167213B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020096369A1 (en) * | 2001-01-19 | 2002-07-25 | Glowka David A. | Drill bit assembly for releasably retaining a drill bit cutter |
| CN104662252A (en) * | 2012-08-21 | 2015-05-27 | 史密斯国际有限公司 | Rolling cutter with close loop retaining ring |
| US20190040691A1 (en) * | 2017-08-03 | 2019-02-07 | Baker Hughes, A Ge Company, Llc | Earth-boring tools including rotatable bearing elements and related methods |
| CN212927724U (en) * | 2020-03-06 | 2021-04-09 | 西南石油大学 | Long-life module cutting tooth and PDC drill bit adopting same |
| CN112832689A (en) * | 2021-03-25 | 2021-05-25 | 中国石油天然气集团有限公司 | Drill stem rotary directional control drilling tool |
| CN113874596A (en) * | 2019-04-01 | 2021-12-31 | 斯伦贝谢技术有限公司 | Instrumented cutter |
| US20220205356A1 (en) * | 2020-12-30 | 2022-06-30 | Halliburton Energy Services, Inc. | Drill Bit With Reciprocating Gauge Assembly |
| US20230184042A1 (en) * | 2021-12-15 | 2023-06-15 | Halliburton Energy Services, Inc. | Piston-Based Backup Assembly For Drill Bit |
-
2024
- 2024-05-16 CN CN202410607131.XA patent/CN118167213B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020096369A1 (en) * | 2001-01-19 | 2002-07-25 | Glowka David A. | Drill bit assembly for releasably retaining a drill bit cutter |
| CN104662252A (en) * | 2012-08-21 | 2015-05-27 | 史密斯国际有限公司 | Rolling cutter with close loop retaining ring |
| US20190040691A1 (en) * | 2017-08-03 | 2019-02-07 | Baker Hughes, A Ge Company, Llc | Earth-boring tools including rotatable bearing elements and related methods |
| CN113874596A (en) * | 2019-04-01 | 2021-12-31 | 斯伦贝谢技术有限公司 | Instrumented cutter |
| CN212927724U (en) * | 2020-03-06 | 2021-04-09 | 西南石油大学 | Long-life module cutting tooth and PDC drill bit adopting same |
| US20220205356A1 (en) * | 2020-12-30 | 2022-06-30 | Halliburton Energy Services, Inc. | Drill Bit With Reciprocating Gauge Assembly |
| CN112832689A (en) * | 2021-03-25 | 2021-05-25 | 中国石油天然气集团有限公司 | Drill stem rotary directional control drilling tool |
| US20230184042A1 (en) * | 2021-12-15 | 2023-06-15 | Halliburton Energy Services, Inc. | Piston-Based Backup Assembly For Drill Bit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN118167213B (en) | 2024-07-19 |
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