CN109505527A - A kind of connector and application method for drilling rod and marine riser abrasionproof - Google Patents
A kind of connector and application method for drilling rod and marine riser abrasionproof Download PDFInfo
- Publication number
- CN109505527A CN109505527A CN201910023307.6A CN201910023307A CN109505527A CN 109505527 A CN109505527 A CN 109505527A CN 201910023307 A CN201910023307 A CN 201910023307A CN 109505527 A CN109505527 A CN 109505527A
- Authority
- CN
- China
- Prior art keywords
- connector
- abrading block
- marine riser
- drilling rod
- abrasionproof
- 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
- 238000005553 drilling Methods 0.000 title claims abstract description 55
- 238000000034 method Methods 0.000 title claims abstract description 28
- 239000002184 metal Substances 0.000 claims abstract description 16
- 238000005299 abrasion Methods 0.000 claims abstract description 9
- 239000007858 starting material Substances 0.000 claims abstract description 9
- 238000009434 installation Methods 0.000 claims abstract description 7
- 239000000203 mixture Substances 0.000 claims abstract 2
- 239000000463 material Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000012530 fluid Substances 0.000 claims description 5
- 238000009527 percussion Methods 0.000 claims description 4
- 229920003225 polyurethane elastomer Polymers 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 238000004026 adhesive bonding Methods 0.000 claims description 3
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 2
- 108010010803 Gelatin Proteins 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 239000004917 carbon fiber Substances 0.000 claims description 2
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 229920001971 elastomer Polymers 0.000 claims description 2
- 229920000159 gelatin Polymers 0.000 claims description 2
- 239000008273 gelatin Substances 0.000 claims description 2
- 235000019322 gelatine Nutrition 0.000 claims description 2
- 235000011852 gelatine desserts Nutrition 0.000 claims description 2
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 239000010687 lubricating oil Substances 0.000 claims description 2
- 238000005461 lubrication Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000013535 sea water Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000001046 anti-mould Effects 0.000 description 1
- 239000002546 antimould Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000009429 distress Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/046—Couplings; joints between rod or the like and bit or between rod and rod or the like with ribs, pins, or jaws, and complementary grooves or the like, e.g. bayonet catches
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/042—Threaded
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
- E21B17/1085—Wear protectors; Blast joints; Hard facing
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The present invention relates to a kind of connectors and application method for drilling rod and marine riser abrasionproof.This connector includes connector internal component, connector exterior component, anti-abrading block, anti- abrading block mounting groove bolt, box thread, male thread, pin hole, the anti-mill tube of metal bolt, stop collar, limiting slot gear ring, motor, starter receiver, microcomputer, data line, data string hole, magetic indicator joint, pressure sensor, battery.Connector exterior component and connector internal component in normal conditions can be with relative rotation, when drillng operation, frictional force is excessive between drilling rod and marine riser, when causing connector exterior component that relative motion cannot occur with respect to marine riser, internal pressure sensor can be passed through, the closed-loop control system of microcomputer, electric motor composition drives its rotation.Anti- module is replaceable.The present invention has the advantages that anti-module replacing simple installation, saves cost；Using ring control system, the abrasion of marine riser and drilling rod is effectively reduced, increases the service life of blast joint.
Description
Technical field
The present invention relates to technical field of oil field equipment, are a kind of connectors and user for drilling rod and marine riser abrasionproof
Method.
Background technique
Deepwater drilling and the maximum differential of land drilling well are that there are a special devices between drilling platforms and seabed, i.e.,
Marine riser.The major function of marine riser is isolation seawater, forms the circulation canal of drilling fluid, establishes drilling tool and enters the logical of stratum
The effects of road, concatenation additional line.In the seawater, marine riser receives the effect of marine environment load, easily occurs bending and deformation
And generate vortex-induced vibration.When marine riser occurs bending and deformation with vortex-induced vibration, water proof inside pipe wall will with tool joint and
Outer wall is in contact abrasion.Long-time contact wear, water proof thickness of pipe wall is thinning, this will substantially reduce the intensity of marine riser, can draw
It plays marine riser and fracture distress accident occurs.So inventing a kind of connector and application method for drilling rod and marine riser abrasionproof has
Very big practical significance.In existing drilling rod and marine riser abrasionproof patent, has plenty of using ball, have plenty of and utilize idler wheel, base
This is all steel construction, and steel construction ball idler wheel is wear-resisting, but the gap of component is easy because silt or other impurities allow simultaneously
Ball can not normal rotation, abrasionproof effect decline, it is also possible to damage marine riser.Usually split type abrasionproof street corner of the present invention is in work
Larger friction can occur with water proof tube wall at marine riser dog-leg during work, its relative rotation between marine riser is caused to stop
Only.The present invention can effectively reduce the friction between marine riser and connector using closed-loop control system under above-mentioned special operation condition, prolong
Lengthening joint service life.Anti- abrading block application abrasion resistance is much better than the polyurethane elastomer material of other materials as anti-abrading block,
It is stronger to the protective capability of drilling rod and marine riser, marine riser will not be damaged, and low in cost, assembling is simple.
Summary of the invention
1. a kind of connector and application method for drilling rod and marine riser abrasionproof, it is characterised in that: including group inside connector
Part (1), connector exterior component (2), anti-abrading block (3), anti-abrading block mounting groove (4) bolt (5), box thread (6), male thread (7) are inserted
Pin hole (8), the anti-mill tube of metal bolt (9), stop collar (10), limiting slot (11) gear ring (12), motor (13), starter receiver
(14), microcomputer (15), data line (16), data string hole (17), magetic indicator joint (18), pressure sensor (19), battery
(20)；Connector internal component (1) is connect with two drilling rods respectively by the screw threads of two sides, the stop collar (10) at both ends with connect
It applies and fills out on each contact surface of limiting slot (11) cooperation on head external module (2), stop collar (10) and limiting slot (11)
Material sealing, inserting multilayer carbon fiber and rubber, axial restraint connector exterior component (2) simultaneously enclose connector exterior component (2) can
It is rotated around connector internal component (1)；Microcomputer is installed in the side of connector exterior component (2) and connector internal component (1) cooperation
(15) and motor (13), be connected by key between motor (13) and starter receiver (14), starter receiver (14) with and connector
Internal component (1) closely connects and welds strict gear ring (12) intermeshing, uses bath lubrication, lubricating oil at cooperation
Submerge gear ring (12) top；Equally distributed anti-abrading block mounting groove (4) is equipped on the outside of connector exterior component (2)；Anti- abrading block peace
Two axial sides of tankage (4) install two bolts (3) with spring, the position peace of bottom end panel data string holes (17) respectively
It fills magetic indicator joint (18)；It is equipped on anti-abrading block pin hole (8), metal is installed with interference fit and special gelatin in pin hole (8)
The anti-mill tube of bolt (9)；The type stage is fabricated in anti-abrading block, and pressure sensor (19) is mounted on its streamline surface end certain depth
Place, magetic indicator joint (18) are mounted in its planar ends, between magetic indicator joint (18) and pressure sensor (19) even with data line (16)
It connects；The position phase interworking of the position of magetic indicator joint (18) and magetic indicator joint (18) on anti-abrading block mounting groove (4) on anti-abrading block (3)
It closes, makes that connection can be attracted in normal work, acquisition data can be real-time transmitted to microcomputer (15), battery (20)
It powers for the microcomputer (15) and pressure sensor (19), can be to store by the magetic indicator joint (18) on anti-module mounting groove
Battery (20) charging；In the anti-mill tube of metal bolt (9) on anti-abrading block (3), so that anti-abrading block (3) is fixed on connector exterior group
On part (2), the gap between anti-abrading block (3) and connector exterior component (2) is reinforced with extraordinary adhesive bonding again.
2. according to claim 1, a kind of connector and application method for drilling rod and marine riser abrasionproof, feature exist
In: the anti-abrading block (3) uses polyurethane elastomer material, installs pressure inside it in anti-abrading block (3) production formative stage
Sensor (19).
3. according to claim 1, a kind of connector and application method for drilling rod and marine riser abrasionproof, feature exist
Be in: anti-abrading block (3) exposed parts it is streamlined, it is down big up small, reduce drilling fluid percussion and whirlpool impulse and swings.
4. according to claim 1, a kind of connector and application method for drilling rod and marine riser abrasionproof, feature exist
In: there are pin hole (8) on the anti-abrading block (3), in bolt (5) insertion pin hole (8), anti-abrading block (3) is fixed on anti-mould
On block mounting groove (4).
5. according to claim 1, a kind of connector and application method for drilling rod and marine riser abrasionproof, feature exist
Spring is welded in: bolt (5) tail portion, and when installation, which promotes, unclamps, and anti-abrading block is covered with connector one week, upper layer and lower layer.
6. according to claim 1, a kind of connector and application method for drilling rod and marine riser abrasionproof, feature exist
In: there are the corresponding anti-mill tube of metal bolt (9), bolt handle when preventing active force excessive with pin hole (8) on the anti-abrading block (3)
Anti- abrading block is cut off.
7. according to claim 1, a kind of connector and application method for drilling rod and marine riser abrasionproof, feature exist
In: the data line (16) between the pressure sensor (19) and microcomputer (15) is at anti-abrading block (3) and anti-abrading block slot (4)
It is connected using magetic indicator joint (18).
8. according to claim 1, a kind of connector and application method for drilling rod and marine riser abrasionproof, feature exist
In: microcomputer (15) and motor (13) are installed in the connector exterior component (2) and pressure sensor (19) form intelligence
Can closed-loop control system, lead to connector exterior component (2) and water proof greatly connector exterior component (2) and water proof inside pipe wall are rubbed
Pipe is damaged without that can start motor (13) anti-locking apparatus when relatively rotating in time.
9. according to claim 1, a kind of connector and application method for drilling rod and marine riser abrasionproof, feature exist
In: the motor (13) passes to group inside connector by the torque that starter receiver (14) and gear ring (12) are generated
Part (1).
10. according to claim 1, a kind of connector for drilling rod and marine riser abrasionproof it include following installation and make
With step:
S1, the anti-mill tube of metal bolt (9) is installed to the pin hole (8) on anti-abrading block (3) Nei.
S2, by bolt (3) spring terminal be inserted on anti-abrading block mounting groove (4) pin hole (8) (it is interior, with sheet tool compresses
Spring is put into anti-abrading block (3), removes sheet tool of compression, and bolt (5) springs into the pin hole on abrasionproof block mounting groove (4) automatically
(8) in.
S3, extraordinary adhesive is injected to the gap between anti-abrading block (3) and anti-abrading block mounting groove (4), sealing off gap is reinforced
The connection of anti-abrading block (3) and connector exterior component (2).
S5, the external screw thread of a drilling rod one end is engaged with the box thread (6) of connector internal component (1), another drilling rod
The internal screw thread of one end is engaged with the male thread (7) of connector internal component (1), to connect two drilling rods, is mounted on marine riser dog-leg
Place.
In S6, work process, water proof inside pipe wall and connector exterior component (2) generate huge frictional force, will lead to outside connector
Relative rotation between parts (2) and marine riser stops, and the anti-abrading block (3) of contact position bears huge stress.Anti- abrading block at this time
(3) pressure sensor (19) in receives biggish pressure signal, is translated into electric signal, is transmitted by data line (16)
Issuing instruction control motor (13) to microcomputer (15) microcomputer (15) turns it to the opposite direction of drilling rod direction of rotation
It is dynamic.The torque for data timely adjustment motor (13) output that microcomputer (15) is fed back according to pressure sensor (19).Connector
External module (2) and marine riser reappear relative rotation, reduce the abrasion of several anti-abrading blocks (3).
S6, when anti-abrading block (3) abrasion after, taken out with drilling rod, remove the anti-abrading block (3) of abrasion, the anti-abrading block (3) more renewed
After can be used continuously.
The invention has the following advantages that
1, the protection using the superior polyurethane elastomer material of wearability as abrasionproof block of material, to drilling rod and marine riser
Ability is stronger, will not damage marine riser.
2, there is the anti-mill tube of metal bolt corresponding with pin hole on anti-abrading block, bolt is anti-abrading block when preventing active force excessive
It cuts off.
3, anti-abrading block exposed parts are streamlined, down big up small, reduce drilling fluid percussion and whirlpool impulses and swings.
4, relative rotation can be brought it about by closed-loop control system when cannoting rotate relative to each other between connector and marine riser, subtracted
Friction between small marine riser and connector, extending connector service life.
5, anti-module is replaceable.
Detailed description of the invention
Fig. 1-amplification module side view；
Fig. 2-bolt installs detail view；
Fig. 3-connector sectional view；
Fig. 4-connector front view
Fig. 5-connector facing structure figure；
In figure: 1- joint body, the anti-abrading block of 2-, 3- bolt, 4- box thread (6), 5- male thread (7), 6- pin hole (8),
The anti-mill tube of 7- metal bolt (9)；.
Specific implementation method
The present invention will be further described with reference to the accompanying drawing, and protection scope of the present invention is not limited to as described below:
As shown in Fig. 1~5, a kind of connector and application method for drilling rod and marine riser abrasionproof, including anti-abrading block and connect
Head ontology has pin hole (8), in the anti-mill tube of the metal bolt that bolt is inserted on anti-abrading block (9), connects so that anti-abrading block is fixed on
On head ontology, the gap between anti-abrading block and joint body is reinforced with extraordinary adhesive bonding again.There is spring in bolt tail portion, installation
It is convenient.The external screw thread of a piece drilling rod one end is engaged with the box thread (6) of joint body, the internal screw thread of another drilling rod one end with connect
Male thread (7) engagement of head ontology, to connect two drilling rods.
As shown in Figure 1, it is cuboid that the anti-abrading block, which is inlaid into joint body part, installation is firm, and exposed parts are stream
Line style, it is down big up small, reduce drilling fluid percussion and whirlpool impulses and swings.
As shown in Fig. 2, having the corresponding anti-mill tube of metal bolt (9), the anti-mill tube of metal bolt with pin hole (8) on anti-abrading block
(9) it is inserted in the pin hole (8) on anti-abrading block Nei, bolt cuts off anti-abrading block when preventing active force excessive.
As shown in figure 4, anti-abrading block is covered with connector one week, upper layer and lower layer have an anti-abrading block every 20 degree, up and down every layer it is each
18.
Claims (10)
1. a kind of connector and application method for drilling rod and marine riser abrasionproof, it is characterised in that: including connector internal component
(1), connector exterior component (2), anti-abrading block (3), anti-abrading block mounting groove (4) bolt (5), box thread (6), male thread (7), bolt
Hole (8), the anti-mill tube of metal bolt (9), stop collar (10), limiting slot (11) gear ring (12), motor (13), starter receiver
(14), microcomputer (15), data line (16), data string hole (17), magetic indicator joint (18), pressure sensor (19), battery
(20)；Connector internal component (1) is connect with two drilling rods respectively by the screw threads of two sides, the stop collar (10) at both ends with connect
It applies and fills out on each contact surface of limiting slot (11) cooperation on head external module (2), stop collar (10) and limiting slot (11)
Material sealing, inserting multilayer carbon fiber and rubber, axial restraint connector exterior component (2) simultaneously enclose connector exterior component (2) can
It is rotated around connector internal component (1)；Microcomputer is installed in the side of connector exterior component (2) and connector internal component (1) cooperation
(15) and motor (13), be connected by key between motor (13) and starter receiver (14), starter receiver (14) with and connector
Internal component (1) closely connects and welds strict gear ring (12) intermeshing, uses bath lubrication, lubricating oil at cooperation
Submerge gear ring (12) top；Equally distributed anti-abrading block mounting groove (4) is equipped on the outside of connector exterior component (2)；Anti- abrading block peace
Two axial sides of tankage (4) install two bolts (3) with spring, the position peace of bottom end panel data string holes (17) respectively
It fills magetic indicator joint (18)；It is equipped on anti-abrading block pin hole (8), metal is installed with interference fit and special gelatin in pin hole (8)
The anti-mill tube of bolt (9)；The type stage is fabricated in anti-abrading block, and pressure sensor (19) is mounted on its streamline surface end certain depth
Place, magetic indicator joint (18) are mounted in its planar ends, between magetic indicator joint (18) and pressure sensor (19) even with data line (16)
It connects；The position phase interworking of the position of magetic indicator joint (18) and magetic indicator joint (18) on anti-abrading block mounting groove (4) on anti-abrading block (3)
It closes, makes that connection can be attracted in normal work, acquisition data can be real-time transmitted to microcomputer (15), battery (20)
It powers for the microcomputer (15) and pressure sensor (19), can be to store by the magetic indicator joint (18) on anti-module mounting groove
Battery (20) charging；In the anti-mill tube of metal bolt (9) on anti-abrading block (3), so that anti-abrading block (3) is fixed on connector exterior group
On part (2), the gap between anti-abrading block (3) and connector exterior component (2) is reinforced with extraordinary adhesive bonding again.
2. a kind of according to claim 1, connector and application method for drilling rod and marine riser abrasionproof, it is characterised in that:
The anti-abrading block (3) uses polyurethane elastomer material, installs pressure sensing inside it in anti-abrading block (3) production formative stage
Device (19).
3. a kind of according to claim 1, connector and application method for drilling rod and marine riser abrasionproof, it is characterised in that:
Anti- abrading block (3) exposed parts be it is streamlined, it is down big up small, reduce drilling fluid percussion and whirlpool and impulse and swing.
4. a kind of according to claim 1, connector and application method for drilling rod and marine riser abrasionproof, it is characterised in that:
There are pin hole (8) on the anti-abrading block (3), in bolt (5) insertion pin hole (8), anti-abrading block (3) is fixed on anti-module and is pacified
On tankage (4).
5. a kind of according to claim 1, connector and application method for drilling rod and marine riser abrasionproof, it is characterised in that:
Bolt (5) tail portion is welded with spring, and when installation, which promotes, unclamps, and anti-abrading block is covered with connector one week, upper layer and lower layer.
6. a kind of according to claim 1, connector and application method for drilling rod and marine riser abrasionproof, it is characterised in that:
There is the corresponding anti-mill tube of metal bolt (9) with pin hole (8) on the anti-abrading block (3), bolt is anti-when preventing active force excessive
Abrading block is cut off.
7. a kind of according to claim 1, connector and application method for drilling rod and marine riser abrasionproof, it is characterised in that:
Data line (16) between the pressure sensor (19) and microcomputer (15) is sharp at anti-abrading block (3) and anti-abrading block slot (4)
It is connected with magetic indicator joint (18).
8. a kind of according to claim 1, connector and application method for drilling rod and marine riser abrasionproof, it is characterised in that:
Microcomputer (15) and motor (13) are installed to close with pressure sensor (19) composition intelligence in the connector exterior component (2)
Ring control system, connector exterior component (2) and water proof inside pipe wall it is rubbed greatly cause connector exterior component (2) and marine riser without
Motor (13) anti-locking apparatus damage can be started when relative rotation in time.
9. a kind of according to claim 1, connector and application method for drilling rod and marine riser abrasionproof, it is characterised in that:
The motor (13) passes to connector internal component by the torque that starter receiver (14) and gear ring (12) are generated
(1)。
10. according to claim 1, a kind of connector for drilling rod and marine riser abrasionproof it include following installation and using walking
It is rapid:
S1, the anti-mill tube of metal bolt (9) is installed to the pin hole (8) on anti-abrading block (3) Nei；
S2, by bolt (3) spring terminal be inserted on anti-abrading block mounting groove (4) pin hole (8) (it is interior, with sheet tool compresses spring,
Anti- abrading block (3) are put into, sheet tool of compression is removed, bolt (5) is sprung into the pin hole (8) on abrasionproof block mounting groove (4) automatically；
S3, extraordinary adhesive is injected to the gap between anti-abrading block (3) and anti-abrading block mounting groove (4), sealing off gap reinforces abrasionproof
The connection of block (3) and connector exterior component (2)；
S4, the external screw thread of a drilling rod one end is engaged with the box thread (6) of connector internal component (1), another drilling rod one end
Internal screw thread engaged with the male thread (7) of connector internal component (1), to connect two drilling rods, be mounted at marine riser dog-leg；
In S5, work process, water proof inside pipe wall and connector exterior component (2) generate huge frictional force, will lead to connector exterior group
Relative rotation between part (2) and marine riser stops, and the anti-abrading block (3) of contact position bears huge stress；At this time in anti-abrading block (3)
Pressure sensor (19) receive biggish pressure signal, be translated into electric signal, be transferred to by data line (16) micro-
Type computer (15) microcomputer (15), which issues instruction control motor (13), rotates it to the opposite direction of drilling rod direction of rotation；It is micro-
The torque for data timely adjustment motor (13) output that type computer (15) is fed back according to pressure sensor (19)；Connector exterior group
Part (2) and marine riser reappear relative rotation, reduce the abrasion of several anti-abrading blocks (3)；
S6, after anti-abrading block (3) abrasion, taken out with drilling rod, remove the anti-abrading block (3) of abrasion, the anti-abrading block (3) more renewed is afterwards i.e.
It can continue to use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910023307.6A CN109505527B (en) | 2019-01-10 | 2019-01-10 | Joint for abrasion prevention of drill rod and water isolation pipe and use method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910023307.6A CN109505527B (en) | 2019-01-10 | 2019-01-10 | Joint for abrasion prevention of drill rod and water isolation pipe and use method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109505527A true CN109505527A (en) | 2019-03-22 |
| CN109505527B CN109505527B (en) | 2023-07-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910023307.6A Active CN109505527B (en) | 2019-01-10 | 2019-01-10 | Joint for abrasion prevention of drill rod and water isolation pipe and use method |
Country Status (1)
| Country | Link |
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| CN (1) | CN109505527B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111537043A (en) * | 2020-06-15 | 2020-08-14 | 张大鸿 | Following type magnetostrictive water level gauge for hydraulic engineering pressure measuring pipe |
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