CN106574486A - Devices and systems for extracting drilling equipment through a drillstring - Google Patents
Devices and systems for extracting drilling equipment through a drillstring Download PDFInfo
- Publication number
- CN106574486A CN106574486A CN201580040184.7A CN201580040184A CN106574486A CN 106574486 A CN106574486 A CN 106574486A CN 201580040184 A CN201580040184 A CN 201580040184A CN 106574486 A CN106574486 A CN 106574486A
- Authority
- CN
- China
- Prior art keywords
- equipment
- drill string
- anchor log
- stator tube
- anchor
- 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.)
- Pending
Links
- 238000005553 drilling Methods 0.000 title claims description 19
- 238000000605 extraction Methods 0.000 claims abstract description 5
- 241000935974 Paralichthys dentatus Species 0.000 claims description 15
- 238000004891 communication Methods 0.000 claims description 10
- 238000005259 measurement Methods 0.000 claims description 10
- 239000012530 fluid Substances 0.000 claims description 8
- 238000013519 translation Methods 0.000 claims description 5
- 241001074085 Scophthalmus aquosus Species 0.000 claims description 3
- 238000010008 shearing Methods 0.000 claims 1
- 210000000078 claw Anatomy 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000012237 artificial material Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B31/00—Fishing for or freeing objects in boreholes or wells
- E21B31/12—Grappling tools, e.g. tongs or grabs
- E21B31/20—Grappling tools, e.g. tongs or grabs gripping internally, e.g. fishing spears
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B23/00—Apparatus for displacing, setting, locking, releasing, or removing tools, packers or the like in the boreholes or wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/09—Locating or determining the position of objects in boreholes or wells, e.g. the position of an extending arm; Identifying the free or blocked portions of pipes
Abstract
A device and system for extracting equipment from a drillstring are disclosed. The system comprises an equipment extraction device having an anchor coupled to the equipment, a housing coupled to an uphole portion of the drillstring, and a stator tube coupled to a downhole portion of the drillstring. The anchor is comprised of an anchor extraction pin and at least one anchor claw and the equipment extraction device is detachably coupled to the stator tube.
Description
Technical field
The present invention relates to withdrawing device, specifically the present invention relates to be used to the dress of downhole drill equipment to be taken out by drill string
Put.
Background technology
In oil and gas industry, get out wellhole to reach underground oil gas stratum.Traditional drilling is needed at earth's surface to brill
Post applies to rotate, and the rotation is passed to the drill bit on drill string far-end BHA (BHA).However, fixed
To in drilling, it is possible to use down-hole drilling motor to apply to rotate to drill bit.
For example in horizontal Oil/gas Well drilling process, the track of wellhole is generally uneven and unstable.By geosteering, determine
Expanded to the high flexibility of wellhole for creeping into correction excessively and/or stratum interaction causes the decentralization multistage in these wells
Formula packer assembly or sleeve pipe are being the devil and sometimes impossible.When long range horizontal well is crept into, by drill string
The friction that interaction with wellhole is produced seriously limits weight transmitting to drill bit, creeps into speed and can so as to reduce
Many other problems can be caused, in the worst case, it is impossible to reach total planned depth of well.BHA is bonded to which can not be by
At the point of pull-out, operator must find stuck point along drill string.In order to determine stuck point, " free point " test is used.From
The magnetic characteristic of drill string is needed by a test, does not apply tension force or moment of torsion first, then apply tension force or moment of torsion again.Except
Extremely outer at catches, the magnetic profile of the drill string that twice sweep is obtained should be identical.The stress concentrated at catches changes
The magnetic behavior curve of material is become, so that it is determined that free point.
Free point test only can be implemented in clear opening.If middle drill string equipment is in place, during that is only capable of being sent under
Between position before drill string equipment implement free point test.One example of the middle drill string device being commonly installed is agitator.
At present if there is no clear opening and drill string is stuck it is necessary to carry out tediously long, time-consuming, expensive operation.The first step is to make
With the special dismounting element positioned at the shaft bottom side of middle drill string equipment by middle drill string equipment " returning ".Once middle drill string sets
It is standby to be retired, then disconnect the drill string from middle drill string equipment to derrick.Next free point instrument is sent under open hole well to incite somebody to action
Which is inserted in unlimited remaining drill string, then conducts magnetic.Once it is determined that free point, just by cutting tool, chemicals, blast
Thing etc. is inserted, and cuts off the drill string from more than free point.Drill string sections between middle drill string equipment and free point are retrieved.Such as
Fruit is possible, fetches MWD from drill string.Final step is to remove the BHA that blocks by force and replaced with new BHA.Feelings once in a while
Under condition, BHA can not take off.In this case, the BHA is abandoned, just starts to get out the well of deviation above the BHA for blocking
Hole is getting around the drill string for blocking.
Due to due to aforementioned, need a kind of device and system come easily and rapidly remove drilling equipment and without the need for destruction
Whole drill string.
The content of the invention
Instant invention overcomes the problems and disadvantages related to current strategies and design, there is provided remove drilling well by drill string and set
Standby new tool and new method.
An embodiment of the invention is related to a kind of equipment withdrawing device.The device includes the anchor for being connected to the equipment
Determine part.The anchor log includes that anchor log takes out pin and at least one anchor fluke being adapted to engage with inside drill string.
In a preferred embodiment, the equipment is turbine-driven generator, agitator, measurement while drilling (MWD) dress
Put, well logging (LWD) device, telemetry or downhole communication device, the repeater of the telemetry or communication device, survey
The instrument of amount drill string power (such as moment of torsion, rotating speed, rate of translation), turbogenerator, middle drill string instrument group, electromotor and
One in combinations thereof.Preferably, the device also includes shear pin, and shear pin is suitable to maintain at least one anchor fluke to exist
Engagement in drill string inside, overcomes the intensity of shear pin until applying sufficiently large power.
Preferably, the device also includes the housing of the well head part that may be connected to drill string and may be connected to determining for drill string bottom
Son pipe.In a preferred embodiment, the inside of drill string is the inside of stator tube.At least one anchor fluke is preferably adapted to
It is releasably coupled hole on stator tube inside, recess or opening.Preferably, the anchor log and equipment can be from the housings
Take out with stator tube.
In a preferred embodiment, once anchor log and equipment are taken out, just stay only in housing and stator tube
Hole.Preferably, the device is additionally included at least one of stator tube line of rabbet joint, and wherein drilling fluid can surround the anchor log
Flow and pass through at least one line of rabbet joint to flow in the stator tube with equipment.Preferably, the anchor log takes out pin and is suitable to
Catch from earth's surface.
Another embodiment of the invention is a kind of system for from drill string extraction device.The system includes that equipment takes
Go out device, be connected to the housing of drill string well head part and be connected to the stator tube of drill string bottom, the equipment withdrawing device has company
The anchor log of the equipment is connected to, wherein the anchor log includes that anchor log takes out pin and at least one anchor fluke.The equipment takes
Go out device and be detachably connected to the stator tube.
Preferably, the equipment is turbine-driven generator, agitator, measurement while drilling (MWD) device, well logging
(LWD) device, telemetry or downhole communication device, the repeater of the telemetry or communication device, measurement drill string power
The instrument of (such as moment of torsion, rotating speed, rate of translation), turbogenerator, middle drill string instrument group, electromotor and combinations thereof
In one.In a preferred embodiment, the equipment withdrawing device also includes shear pin, and shear pin is suitable to remain described
Engagement of at least one anchor fluke in stator tube inside, overcomes the intensity of shear pin until applying sufficiently large power.
The system preferably also includes that being suitably connected to anchor log takes out pin and take out the anchor log and equipment from drill string
Grabbing device.The system preferably also includes multiple anchor logs, and each anchor log is connected to the different parts of equipment.It is preferred that
Ground, at least one anchor fluke are suitable to hole, recess or the opening being releasably coupled in stator tube inside.
In a preferred embodiment, the anchor log and equipment can be taken out from the housing and stator tube.It is preferred that
Ground, once anchor log and equipment are taken out, just leaves clear opening in housing and stator tube.The system is also preferably included in stator
At least one of the pipe line of rabbet joint, wherein drilling fluid can surround the anchor log and equipment flows and passes through described at least one
The line of rabbet joint is flowed in the stator tube.Preferably, anchor log and equipment can be taken out in the case where removing drill string.
The other embodiment and advantage of the present invention is set forth in part in the description and partly can be from this
Obviously draw in description, or can be from acquistion in the enforcement of the present invention.
Description of the drawings
Only pass through example and the present invention is described in detail with reference to the attached drawings, wherein：
Fig. 1 is the cross-sectional side elevational view of an embodiment of the invention.
Fig. 2 is the zoomed-in view of an embodiment of the anchor log end of the present invention.
Fig. 3 is the zoomed-in view of an embodiment of an example of the equipment end of the present invention.
Specific embodiment
As embodying here and wide in range description, this specification there is provided the detailed embodiment party of the present invention
Formula.However, disclosed embodiment is only the example of the present invention, which can be embodied with various alternative forms.Therefore, specifically
Structure on and details functionally be not intended to determinate, they provide the foundation of claim and as there is generation
The foundation of table is used to instruct the many-sided enforcement present invention of those skilled in the art.
Fig. 1 shows the cross-sectional side elevational of an embodiment for the anchor log 100 from 110 removing device 105 of drill string
Figure.In embodiment shown here, the equipment 105 is turbine drive electromotor.However, equipment 105 can for example be
Agitator, measurement while drilling (MWD) device, well logging (LWD) device, telemetry or downhole communication device, the remote sensing are surveyed
The repeater of survey or communication device, the instrument of measurement drill string power (such as moment of torsion, rotating speed, rate of translation), electromotor, middle brill
Post instrument group, turbogenerator or other equipment and combinations thereof.Although describing an anchor log 100, entirely
Drill string can arrange multiple anchor logs 100, and each anchor log is connected to the different parts of equipment 105.
In the preferred implementation, anchor log 100 and equipment 105 via the housing 110 towards well head or earth's surface and
It is included in drill string towards the stator tube 115 of shaft bottom or drill bit.The position of housing 110 and stator tube 115 in drill string can be with
It is reverse.Preferably, in drilling process, anchor log 100 and housing 110 are all connected to stator tube 115.Preferably, in anchor log
100 and during equipment 105 takes out, anchor log 100 and equipment 105 are disengaged with stator tube 115 and are drawn through drill string
To earth's surface without destroying drill string and drill string need not be removed from wellhole, and housing 110 will not be made to connect with the disengaging of stator tube 115
Close.Preferably, housing 110 and stator tube 115 connect via the weld assembly of press-fit.However, housing 110 and stator tube 115
Can be connected with binding agent, nipple, bolt, frictional force, rivet, fastener or other attachment means.Preferably, stator tube
115 at least a portion is inserted in housing 110, and another part extends to down-hole beyond the end of housing 110.
Fig. 2 shows the zoomed-in view at 100 end of anchor log of the system.The uphole end of anchor log 100 preferably by
Take out what pin 120 was constituted.The taking-up pin 120 preferably can be caught from earth's surface by a device, hangs or otherwise be connected
Connect.What the shaft bottom end of anchor log 100 was preferably made up of the plant bottom case 125 for being connected to anchor body 130.It is preferred that
Ground, anchor log 100 and equipment 105 are maintained in stator tube 115 on appropriate location by anchor fluke 135.Preferably, anchor fluke 135 can
Releasably engage 115 body of stator tube in hole, recess or other opening.Additionally, shear pin 140 or retainer of the spring keep anchor
Engagement between pawl 135 and stator tube 115, be enough to overcome shear pin 140 preferably up to the pulling force being applied on taking-up pin 120
Intensity so that anchor fluke 135 is disengaged with stator tube 115.Preferably, shear pin 140 is steel, however, shear pin 140
Can by other materials such as plastics, nylon, other metals, wood or other naturally occur or artificial material make.
Pulling force is continued on taking-up pin 120 preferably forces taking-up pin to engage with anchored cap 145 such that it is able to by 100 He of anchor log
Equipment 105 is dragged to earth's surface.
Fig. 3 shows an embodiment at 105 end of equipment of the system.As noted here, this shown shows
Example property equipment 105 is turbogenerator.The turbogenerator only may be connected to the one of the viable device 105 of anchor log 100
Individual example.In the preferred implementation, drilling fluid 150 surrounds anchor log 100 (as shown in Figure 2) and equipment 105 (as schemed
Shown in 3) flow and by the line of rabbet joint 155 in stator tube 115.Though it is shown that four lines of rabbet joint (two, top bottom two),
But can be the line of rabbet joint using other quantity, such as two, six, eight, ten or 12 lines of rabbet joint.The line of rabbet joint 155 is preferably
It is oval, such as line of rabbet joint can be 4 inches and be multiplied by1/2Inch.However, the line of rabbet joint 155 can have another kind of shape, such as
Circular or rectangle.Once fluid 150 is entered in 115 inside of stator tube by the line of rabbet joint 155, the fluid just can be with equipment 105
Interact.For example, in the embodiment that figure 3 illustrates, the fluid rotates can turbine 160, and the turbine 160 is connected to
Drive the axle 165 of turbogenerator.
Once anchor log 100 and equipment 105 are removed, the remaining part of drill string is left with clear opening, can carry out free point
Test is fetched with measurement while drilling (MWD) instrument.Such as, if drill bit is stuck, operator can take out in anchor log and sell
Pull on 120, anchor log 100 and rotor 105 are removed by drill string, so as to provide the without hindrance road for leading to drill string bottom
Footpath, with the position for determining the drill string position blocked or creep into stopping.
After the description and embodiment that consider the present invention for disclosing here, the present invention other embodiment and
Purposes would is that obviously to those skilled in the art.All references cited herein, including it is all of
Public publication, US and foreign patent and patent application, by quoting clearly and being incorporated by.This specification and example are intended to recognize
To be only exemplary, the true scope and marrow of the present invention are represented by following claim.Additionally, term " including ... "
Including " by ... constitute " and " mainly by ... constitute ".
Claims (20)
1. a kind of equipment withdrawing device, including：
The anchor log of the equipment is connected to, the anchor log includes：
Anchor log takes out pin；And
At least one anchor fluke being adapted to engage with inside drill string.
2. equipment withdrawing device according to claim 1, the wherein equipment be turbine-driven generator, agitator, with brill
Measurement (MWD) device, well logging (LWD) device, telemetry or downhole communication device, the telemetry or communication device
Repeater, the instrument of measurement drill string power (such as moment of torsion, rotating speed, rate of translation), turbogenerator, middle drill string instrument
One in group, electromotor and combinations thereof.
3. equipment withdrawing device according to claim 1, also including shear pin or retainer of the spring, the shear pin or bullet
Spring retainer is suitable to keep engagement of at least one anchor fluke inside drill string, until the power for applying be enough to overcome the shearing
The intensity of pin or retainer of the spring.
4. equipment withdrawing device according to claim 1, also including may be connected to the housing of drill string well head part and can connect
To the stator tube of drill string bottom.
5. equipment withdrawing device according to claim 4, wherein being inside stator tube inside the drill string.
6. equipment withdrawing device according to claim 5, wherein at least one anchor fluke is suitable to be releasably coupled institute
State hole in stator tube inside, recess or opening.
7. equipment withdrawing device according to claim 4, wherein the anchor log and equipment can be from the housings and fixed
Sub- pipe takes out.
8. equipment withdrawing device according to claim 7, wherein, once the anchor log and equipment are removed, then in institute
Clear opening is left in stating housing and stator tube.
9. equipment withdrawing device according to claim 4, is additionally included at least one of stator tube line of rabbet joint, wherein drilling well
Fluid can surround anchor log and equipment flows, and be flowed in stator tube by least one line of rabbet joint.
10. equipment withdrawing device according to claim 1, wherein the anchor log takes out pin to be suitable to from earth's surface catch.
A kind of 11. systems for from drill string extraction device, including：
Equipment withdrawing device, which has the anchor log for being connected to the equipment, wherein the anchor log include anchor log take out pin and
At least one anchor fluke；
It is connected to the housing of drill string well head part；And
It is connected to the stator tube of drill string bottom；
Wherein described equipment withdrawing device is detachably connected to the stator tube.
12. systems according to claim 11, wherein the equipment is turbine-driven generator, agitator, measurement while drilling
(MWD) in device, well logging (LWD) device, telemetry or downhole communication device, the telemetry or communication device
After device, the instrument of measurement drill string power (such as moment of torsion, rotating speed, rate of translation), turbogenerator, middle drill string instrument group, send out
One in motor and combinations thereof.
13. systems according to claim 11, wherein the equipment withdrawing device also includes shear pin or retainer of the spring,
The shear pin or retainer of the spring are suitable to keep engagement of at least one anchor fluke in stator tube inside, until what is applied
Power be enough to the intensity for overcoming shear pin or retainer of the spring.
14. systems according to claim 11, also take out pin and take out from drill string including being suitably connected to the anchor log
The grabbing device of anchor log and equipment.
15. systems according to claim 11, also including multiple anchor logs, each anchor log is connected to the different portions of equipment
Part.
16. systems according to claim 11, wherein at least one anchor fluke is suitable to be releasably coupled in stator tube
Hole, recess or opening in portion.
17. systems according to claim 11, wherein the anchor log and equipment can be taken from the housing and stator tube
Go out.
18. systems according to claim 17, wherein once the anchor log and equipment are removed, then in the housing and
Clear opening is reserved in stator tube.
19. systems according to claim 11, are additionally included at least one of stator tube line of rabbet joint, wherein drilling fluid energy
Enough surround anchor log and equipment flows, and flowed in stator tube by least one line of rabbet joint.
20. systems according to claim 11, wherein the anchor log and equipment can be in the case where drill string do not removed
Take out.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US14/339,972 US20160024865A1 (en) | 2014-07-24 | 2014-07-24 | Devices and systems for extracting drilling equipment through a drillstring |
| US14/339,972 | 2014-07-24 | ||
| PCT/US2015/041914 WO2016014903A1 (en) | 2014-07-24 | 2015-07-24 | Devices and systems for extracting drilling equipment through a drillstring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106574486A true CN106574486A (en) | 2017-04-19 |
Family
ID=55163816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580040184.7A Pending CN106574486A (en) | 2014-07-24 | 2015-07-24 | Devices and systems for extracting drilling equipment through a drillstring |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20160024865A1 (en) |
| EP (1) | EP3161241A4 (en) |
| CN (1) | CN106574486A (en) |
| AU (1) | AU2015292424A1 (en) |
| BR (1) | BR112017001480A2 (en) |
| CA (1) | CA2956183A1 (en) |
| WO (1) | WO2016014903A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112253031A (en) * | 2020-09-23 | 2021-01-22 | 合力（天津）能源科技股份有限公司 | Hydraulic rotary booster tool |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107780862B (en) * | 2017-09-22 | 2023-07-14 | 中国石油天然气集团有限公司 | Fishing device for underground throttler |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3894590A (en) * | 1972-10-16 | 1975-07-15 | Sumitomo Metal Mining Co Limit | Drilling system |
| GB2366308B (en) * | 2000-08-16 | 2004-08-11 | Ryan Energy Technologies Inc | Dynamic pressure device for oil drill systems |
| US20070188344A1 (en) * | 2005-09-16 | 2007-08-16 | Schlumberger Technology Center | Wellbore telemetry system and method |
| CN101258301A (en) * | 2005-09-05 | 2008-09-03 | 山特维克知识产权股份有限公司 | One-piece drill bit for single-pass anchor bolting and single pass drilling apparatus |
| US20110100719A1 (en) * | 2008-02-26 | 2011-05-05 | Sandvik Intellectual Property Ab | Locking mechanism for a ground drill |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2046106A (en) * | 1936-03-05 | 1936-06-30 | John F Bozeman | Core drilling apparatus |
| US2901045A (en) * | 1953-04-20 | 1959-08-25 | Otis Eng Co | Locking means for well tools |
| US4558895A (en) * | 1981-02-11 | 1985-12-17 | Otis Engineering Corporation | Pulling tool |
| US4790380A (en) * | 1987-09-17 | 1988-12-13 | Baker Hughes Incorporated | Wireline well test apparatus and method |
| US6158531A (en) * | 1994-10-14 | 2000-12-12 | Smart Drilling And Completion, Inc. | One pass drilling and completion of wellbores with drill bit attached to drill string to make cased wellbores to produce hydrocarbons |
| DE60208662T2 (en) * | 2001-01-24 | 2007-01-25 | Geolink (Uk) Ltd. | PRESSURE IMPULSE GENERATOR FOR DRILLING MEASURING DURING DRILLING |
| US7040415B2 (en) * | 2003-10-22 | 2006-05-09 | Schlumberger Technology Corporation | Downhole telemetry system and method |
| EP2132395B1 (en) * | 2007-03-03 | 2019-02-20 | Longyear TM, Inc. | High productivity core drilling system |
| US7967085B2 (en) * | 2008-04-22 | 2011-06-28 | Longyear Tm, Inc. | Braking devices for use in drilling operations |
| US8079417B2 (en) * | 2008-08-13 | 2011-12-20 | Conocophillips Company | Wireline retrievable dsg/downhole pump system for cyclic steam and continuous steam flooding operations in petroleum reservoirs |
| EP2925950B1 (en) * | 2012-11-30 | 2018-05-23 | National Oilwell Varco, L.P. | Downhole pulse generating device for through-bore operations |
-
2014
- 2014-07-24 US US14/339,972 patent/US20160024865A1/en not_active Abandoned
-
2015
- 2015-07-24 WO PCT/US2015/041914 patent/WO2016014903A1/en active Application Filing
- 2015-07-24 CA CA2956183A patent/CA2956183A1/en not_active Abandoned
- 2015-07-24 BR BR112017001480A patent/BR112017001480A2/en not_active IP Right Cessation
- 2015-07-24 AU AU2015292424A patent/AU2015292424A1/en not_active Abandoned
- 2015-07-24 EP EP15824503.5A patent/EP3161241A4/en not_active Ceased
- 2015-07-24 CN CN201580040184.7A patent/CN106574486A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3894590A (en) * | 1972-10-16 | 1975-07-15 | Sumitomo Metal Mining Co Limit | Drilling system |
| GB2366308B (en) * | 2000-08-16 | 2004-08-11 | Ryan Energy Technologies Inc | Dynamic pressure device for oil drill systems |
| CN101258301A (en) * | 2005-09-05 | 2008-09-03 | 山特维克知识产权股份有限公司 | One-piece drill bit for single-pass anchor bolting and single pass drilling apparatus |
| US20070188344A1 (en) * | 2005-09-16 | 2007-08-16 | Schlumberger Technology Center | Wellbore telemetry system and method |
| US20110100719A1 (en) * | 2008-02-26 | 2011-05-05 | Sandvik Intellectual Property Ab | Locking mechanism for a ground drill |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112253031A (en) * | 2020-09-23 | 2021-01-22 | 合力（天津）能源科技股份有限公司 | Hydraulic rotary booster tool |
Also Published As
| Publication number | Publication date |
|---|---|
| US20160024865A1 (en) | 2016-01-28 |
| EP3161241A1 (en) | 2017-05-03 |
| CA2956183A1 (en) | 2016-01-28 |
| EP3161241A4 (en) | 2018-02-28 |
| BR112017001480A2 (en) | 2017-12-05 |
| WO2016014903A1 (en) | 2016-01-28 |
| AU2015292424A1 (en) | 2017-01-12 |
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