CN109882101A - An opening and closing control mechanism of the upper end of a small-diameter pressure-maintaining wire rope coring tool - Google Patents
An opening and closing control mechanism of the upper end of a small-diameter pressure-maintaining wire rope coring tool Download PDFInfo
- Publication number
- CN109882101A CN109882101A CN201910298799.XA CN201910298799A CN109882101A CN 109882101 A CN109882101 A CN 109882101A CN 201910298799 A CN201910298799 A CN 201910298799A CN 109882101 A CN109882101 A CN 109882101A
- Authority
- CN
- China
- Prior art keywords
- magnetic patch
- strength magnetic
- mandrel
- control mechanism
- closing control
- 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.)
- Withdrawn
Links
- 241001449342 Chlorocrambe hastata Species 0.000 claims abstract description 8
- 238000003825 pressing Methods 0.000 claims description 12
- 230000005347 demagnetization Effects 0.000 claims description 3
- 238000005553 drilling Methods 0.000 abstract description 28
- 238000006073 displacement reaction Methods 0.000 abstract description 12
- 210000004907 gland Anatomy 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 238000007789 sealing Methods 0.000 description 5
- 238000011010 flushing procedure Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 150000004677 hydrates Chemical class 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- NMJORVOYSJLJGU-UHFFFAOYSA-N methane clathrate Chemical compound C.C.C.C.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O NMJORVOYSJLJGU-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Abstract
本发明公开了一种小口径保压绳索取心钻具的上端部启闭控制机构，包括捞矛头、弹卡组件、收卡筒、弹卡支架、主强力磁块、副强力磁块、非金属压套、单向阀盖、芯轴。收卡筒的下部设有横杆，横杆的中部设置有拉杆，主强力磁块设置在弹卡支架的通槽内，拉杆穿过主强力磁块能够沿轴向方向上下运动；拉杆的下端部设有副强力磁块；弹卡支架的下端与芯轴连接，芯轴上端处设有沿芯轴轴向方向设置的单向阀孔，单向阀孔内设有单向阀芯，单向阀芯的上部设有强力磁环，强力磁环位于副强力磁块正下方。本发明能够实现保压钻具单向阀芯开启位移行程的自由调整，同时降低在打捞内管总成过程中由于弹卡组件无法正常收缩，造成打捞失败的风险。
The invention discloses an upper end opening and closing control mechanism of a small-caliber pressure-maintaining wire rope coring drill, which comprises a spear head, a spring clip assembly, a card collecting cylinder, a spring clip bracket, a main strong magnetic block, a secondary strong magnetic block, a Metal gland, one-way valve cover, mandrel. The lower part of the card collecting cylinder is provided with a cross bar, the middle part of the cross bar is provided with a tie rod, the main strong magnetic block is arranged in the through groove of the elastic card bracket, and the tie rod can move up and down in the axial direction through the main strong magnetic block; the lower end of the tie rod A pair of powerful magnetic blocks is provided at the upper end of the spring clip; the lower end of the elastic clip bracket is connected to the mandrel, and the upper end of the mandrel is provided with a one-way valve hole arranged along the axial direction of the mandrel, and a one-way valve core is arranged in the one-way valve hole. The upper part of the valve core is provided with a strong magnetic ring, and the strong magnetic ring is located just below the auxiliary strong magnetic block. The invention can realize the free adjustment of the opening displacement stroke of the one-way valve core of the pressure-maintaining drilling tool, and at the same time reduce the risk of salvage failure due to the failure of the elastic clip assembly to contract normally during the salvage of the inner pipe assembly.
Description
Technical field
The invention belongs to seafari boring tool technical fields, more particularly, to a kind of small-bore pressure maintaining wire line coring
The upper end opening-closing control mechanism of drilling tool.
Background technique
For gas hydrates as a kind of new cleaning fuel, the research and development around its expansion have become countries in the world
Hot spot.Since gas hydrates are formed and there are under cryogenic high pressure environment, are mainly contained in submarine sedimentary strata and land
In the frozen soil stratum of domain.Currently, the exploration for Gas Hydrate In Sea Areas mainly uses the mode of gastight sampling to obtain Gao Pin
The hydrate sample of matter, is broadly divided into drilling ship sampling and seabed drilling machine samples two kinds of forms.Since seabed drilling machine samples shape
Formula has the characteristics that the requirement to lash ship is low, subsidiary operation time is few, drilling efficiency is high, seabed shallow bore hole to medium-length hole
It is also widely recognized as in drilling operation.Currently, in the wire line coring coring drilling with keep up pressure drilling tool scheme having disclosed under its drilling tool
End sealing be opened by pressure maintaining cap and the pressure maintaining cap unloading device on the drilling machine ontology of seabed cooperated to realize.Drilling starts
The unloading device of preceding manipulator and pressure maintaining cap by drilling machine, which unscrews the pressure maintaining cap of inner tube assembly lower end, is placed in drilling machine
Upper realization lower end is opened wide, and is mentioned inner tube assembly on drilling machine ontology after drilling and is recycled pressure maintaining cap unloading device by pressure maintaining
Realize the sealing of lower end in the lower end that cap is screwed onto inner tube assembly.The sealing and unlatching of drilling tool upper end are mainly by being placed in bullet
Dialling on clamping stent hooks and nonreturn valve core cooperates and realizes.During normal work, receives card cylinder and move up certain distance, receive
Card cylinder forces group hook generation restraining force using its inner wall size and turns an angle, and causing to dial to hook to be in contact with nonreturn valve core makes
Nonreturn valve core spring force can be overcome in the open state, after drilling, receive card cylinder reset, inner wall to dial hook pact
Beam releases, and dials hook and is not in contact with nonreturn valve core, and nonreturn valve core is in close state under spring force, realizes lower end
Sealing.Prior art is opened using the rigid contact realization for dialling hook and spool.It is limited by card cylinder internal diameter is received,
The limited angle for hooking rotation is dialled, the nonreturn valve core moving displacement stroke that corresponding conversion is is shorter, it is difficult to according to drilling situation pair
The open amount of spool carries out free adjustment；It meets silt card resistance or dials and hook and when nonreturn valve core mutual wear-out failure easily causes to dial and hooks fortune
Turn flexibility decline, influence the normal gathering of bullet card component and open, there are salvaging risks of failure；Shadow is limited by structure space
It rings, to obtain group moving displacement stroke of the hook rotational angle to increase spool as big as possible, prior art is taken unidirectionally
Valve longitudinal direction layout type, the distribution form change the flow direction of flushing liquor, unobstructed to the water flow of flushing liquor in inner tube to have an impact,
Increase the risk that hard spare and coarse granule rock powder cause check valve to reset failure in the intracavitary enrichment of check valve.Check valve is axial
Although layout type can reduce the occurrence probability of above-mentioned risk, prior art is limited by hook rotational angle is dialled, axis
It is small that the unlatching displacement stroke for hooking and generating to nonreturn valve core is dialled to layout type, affects functional reliability.
Summary of the invention
It is easy to operate in order to solve the above technical problem, the present invention provides a kind of structure is simple, high reliablity it is small-bore
The check valve opening-closing control mechanism of pressure maintaining cord coring drill.
The technical solution adopted by the present invention is that: a kind of check valve opening and closing control machine of small-bore pressure maintaining cord coring drill
Structure, including fishing spearhead, bullet card component, receive card cylinder, cross bar, pull rod, play clamping stent, is main strength magnetic patch, secondary strength magnetic patch, nonmetallic
Pressing sleeve, nonreturn valve core, strength magnet ring, unidirectional valve deck, mandrel；Fishing spearhead is connect with card cylinder is received；Bullet card component is pinned at bullet card branch
In frame；Receive card cylinder and bullet card component pin joint；The top of mandrel is provided with unidirectional valve deck；The lower part for playing clamping stent is connect with mandrel；
It is characterized by: the lower part for receiving card cylinder is equipped with cross bar, the middle part of cross bar is equipped with pull rod, and pull rod is arranged along card cylinder axial direction is received；It is main
Strength magnetic patch is arranged in the through slot for playing clamping stent, and pull rod lower end passes through the centre bore of main strength magnetic patch and secondary strength magnetic patch connects
It connects, pull rod can in axial direction move up and down；The lower end for playing clamping stent is connect with mandrel, and edge is equipped at the mandrel upper end
The unidirectional valve opening of mandrel axial direction setting, unidirectional valve opening are connected to the centre bore of mandrel, and nonreturn valve core is equipped in unidirectional valve opening,
The top of nonreturn valve core is equipped with strength magnet ring, and strength magnet ring is located at immediately below secondary strength magnetic patch.
In the check valve opening-closing control mechanism of above-mentioned small-bore pressure maintaining cord coring drill, play on the lower end surface of clamping stent
Equipped with nonmetallic pressing sleeve；The nonmetallic pressing sleeve is located at immediately below secondary strength magnetic patch, and strength magnet ring is placed in nonmetallic pressing sleeve.
In the check valve opening-closing control mechanism of above-mentioned small-bore pressure maintaining cord coring drill, the main strength magnetic patch and
The pole orientation of secondary strength magnetic patch is opposite；The pole orientation phase of the secondary strength magnetic patch and the strength magnet ring on nonreturn valve core top
Together.
In the check valve opening-closing control mechanism of above-mentioned small-bore pressure maintaining cord coring drill, the reset of the bullet card component
Spring force is greater than the magnetic force between main strength magnetic patch and secondary strength magnetic patch.
In the check valve opening-closing control mechanism of above-mentioned small-bore pressure maintaining cord coring drill, the nonreturn valve core is opened
Qi Li is greater than the magnetic force of main strength magnetic patch and the magnetic force of secondary strength magnetic patch, after being stacked less than main strength magnetic patch and secondary strength magnetic patch
Magnetic force.
In the check valve opening-closing control mechanism of above-mentioned small-bore pressure maintaining cord coring drill, the receipts card cylinder and bullet card
Bracket is handled through demagnetization.
Compared with prior art, the beneficial effects of the present invention are:
The configuration of the present invention is simple realizes that nonreturn valve core is opened during the work time using the magnetic material principle that identical charges repel each other
Open, be a kind of opening ways of non-rigid contact, can magnetic force material type selecting by way of combining to magnetic force size into
Row adjustment is easy to operate to realize freely adjusting to nonreturn valve core opening degree；And conventional shift fork is that rigidity connects with spool
The opening ways of touching, spool, which opens displacement, mainly to be influenced by shift fork rotational angle, and is limited by card cylinder inner wall size is received,
The limited angle of shift fork rotation, it is smaller that displacement stroke is opened in corresponding generation, it is difficult to be adjusted to the opening degree of spool.Work as receipts
When card cylinder is axially moved, the present invention is directly realized by secondary strength magnetic patch using the cross bar and drag link mechanism with receipts card cylinder linkage and blocks with receipts
Cylinder is synchronous to generate axial displacement；And conventional rigid contact opening ways are that the rotational angle for generating shift fork is converted to corresponding valve
Core opens displacement, there is loss during rotational angle is converted into axial displacement, and the displacement stroke of conversion is small.In addition, work
Be easy to happen when meeting silt card resistance or the mutual wear-out failure of hard parts during making shift fork can not flexible motion, lead to bullet card group
Part can not normal contraction, cause salvage fail risk；The present invention realizes the unlatching of nonreturn valve core, valve core movement using magnetic force
The size for depending mainly on the size of magnetic force of displacement, rather than shift fork rotates generated displacement.Therefore, the present invention is advantageous
In realizing the axial direction arrangement check valve along mandrel, to have not been changed flushing liquor water route direction, it is ensured that the normal stream of flushing liquor
It is logical, it reduces hard particles and mud scum is enriched with the probability for causing check valve to reset failure, high reliablity in unidirectional valve opening.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of working condition of the present invention.
Fig. 2 is the structural schematic diagram of state of pressure keeping of the present invention.
In figure: 1- fishes out spearhead；2- elastic cylindrical pin；3- bullet card room；4- elastic cylindrical pin；5- bullet card component；6- cross bar；7-
Pull rod；8- pair strength magnetic patch；9- strength magnet ring；The main strength magnetic patch of 10-；11- bullet clamping stent；The nonmetallic pressing sleeve of 12-；13- is unidirectional
Spool；14- mandrel；15- receives card cylinder；The unidirectional valve deck of 16-.
Specific embodiment
The present invention will be further described below with reference to the drawings.
As shown in Figure 1, the present invention includes fishing spearhead 1, bullet card component 5, receives card cylinder 15, cross bar 6, pull rod 7, main strength magnetic patch
10, clamping stent 11, secondary strength magnetic patch 8, nonmetallic pressing sleeve 12, nonreturn valve core 13, strength magnet ring 9, unidirectional valve deck 16, mandrel are played
14.The fishing spearhead 1 is connect with card cylinder 15 is received；Bullet card component 5, which is placed in, to be played in clamping stent 11, and the lower part of bullet card component 5 passes through
Elastic cylindrical pin 4 is connect with clamping stent 11 is played, and the top of bullet card component 5 is connect by elastic cylindrical pin 2 with card cylinder 15 is received；Receive card
The lower part of cylinder 15 is provided with cross bar 6；The middle part of cross bar 6 is equipped with pull rod 7, and cross bar 6 is arranged radially along card cylinder 15 is received, 7 edge of pull rod
The axial setting of receipts card cylinder 15.Main strength magnetic patch 10 is arranged in the through slot for playing clamping stent 11, and 7 lower end of pull rod passes through main strong magnetic
10 centre bore of block is connect with secondary strength magnetic patch 8, and pull rod 7 can move up and down in main 10 centre bore of strength magnetic patch.Play clamping stent
11 lower end surface is provided with nonmetallic pressing sleeve 12；14 upper end of mandrel is connect with 11 lower end of clamping stent is played, 14 upper end of mandrel
Equipped with the unidirectional valve opening being arranged along 14 axial direction of mandrel, unidirectional valve opening is connected to the centre bore of mandrel 14.It is set in unidirectional valve opening
There is nonreturn valve core 13, spring is equipped between 13 bottom of nonreturn valve core and check valve hole bottom, is equipped in the unidirectional valve opening single
To valve deck 16,13 upper end of nonreturn valve core passes through unidirectional valve deck 16, and 13 upper end of nonreturn valve core is equipped with strength magnet ring 9, strength
Magnet ring 9 is placed in nonmetallic pressing sleeve 12, is located at immediately below secondary strength magnetic patch 8.
The pole orientation of the main strength magnetic patch 10 and secondary strength magnetic patch 8 is on the contrary, the secondary strength magnetic patch 8 and check valve
The pole orientation of 13 top strength magnet ring 9 of core is identical.The return spring force of the bullet card component 5 is greater than main strength magnetic patch 10 and pair
Magnetic force between strength magnetic patch 8.The opening force of the nonreturn valve core 13 be respectively greater than main strength magnetic patch 10 magnetic force and pair it is strong
The magnetic force of power magnetic patch 8, but it is less than magnetic force of the main strength magnetic patch 10 with secondary strength magnetic patch 8 after superimposed.The receipts card cylinder 15
It is handled with clamping stent 11 is played through demagnetization.
Specifically used method of the invention is as follows: utilizing the pressure maintaining inner tube assembly and benefit on drilling machine manipulator crawl drilling tool disk
The pressure maintaining cap of inner tube assembly lower part to be unscrewed with pressure maintaining cap unloading device, pressure maintaining cap is stored in the unloading device on drilling machine ontology,
Inner tube assembly is thrown into bottom hole.When normal drilling, bullet card component 5 is hit by a bullet the radial constraint of card room 3 by outer pipe assembly, is made to receive and be blocked
Cylinder 15 moves vertically, is assemblied in the cross bar 6 received on card cylinder 15 and pull rod 7 is driven to move axially upward, what is made is assemblied in pull rod 7
The secondary strength magnetic patch 8 of lower part moves axially upward with pull rod 7, and secondary strength magnetic patch 8 is bonded to each other with main strength magnetic patch 10
Obtain magnetic force superposition.Since main strength magnetic patch 10 and secondary strength magnetic patch 8 are superimposed the magnetic force generated and 13 top of nonreturn valve core strength
The magnetic force pole orientation that magnet ring 9 generates is identical, and the strength magnet ring 9 on 13 top of nonreturn valve core is forced to overcome the spring of nonreturn valve core 13
Power effect is in the open state, it is ensured that the water energy in the course of work in inner tube is enough smoothly discharged, and forms water-flowing path.
After drilling, inner tube assembly is quickly mentioned to aperture, the diameter of the 3 pairs of bullet card components 5 in bullet card room using salvaging mechanism
To constraint release, receives card cylinder 15 and be moved downward under the action of return spring force along axis on the shoulder for playing clamping stent 11.Due to
Return spring force is greater than the magnetic force resultant force that main strength magnetic patch 10 is generated with secondary strength magnetic patch 8, therefore, with the cross for receiving the linkage of card cylinder 15
Bar 6 drives pull rod 7 to move down along axial direction, and the main strength magnetic patch 10 made is separated from each other with secondary strength magnetic patch 8.Due to secondary strength magnetic patch 8
Magnetic force be less than nonreturn valve core 13 opening force, at this point, under spring force nonreturn valve core 13 reset, realize the upper of drilling tool
End part seal.It recycles pressure maintaining cap unloading device and is grasped by the stubborn cap that the manipulator on drilling machine completes drilling tool lower end pressure maintaining cap
Make, completes the sealing of drilling tool lower end.
Claims (6)
1. a kind of check valve opening-closing control mechanism of small-bore pressure maintaining cord coring drill, including fishing spearhead, bullet card component, receipts card
Cylinder, pull rod, plays clamping stent, is main strength magnetic patch, secondary strength magnetic patch, nonmetallic pressing sleeve, nonreturn valve core, strength magnet ring, unidirectional cross bar
Valve deck, mandrel；Fishing spearhead is connect with card cylinder is received；Bullet card component, which is pinned at, to be played in clamping stent；Receive card cylinder and bullet card component pin joint；Core
The top of axis is provided with unidirectional valve deck；The lower part for playing clamping stent is connect with mandrel；It is characterized by: the lower part for receiving card cylinder is equipped with cross
Bar, the middle part of cross bar are equipped with pull rod, and pull rod is arranged along card cylinder axial direction is received；The through slot for playing clamping stent is arranged in main strength magnetic patch
Interior, the centre bore that pull rod lower end passes through main strength magnetic patch is connect with secondary strength magnetic patch, and pull rod can in axial direction move up and down；
The lower end for playing clamping stent is connect with mandrel, and the unidirectional valve opening being arranged along mandrel axial direction is equipped at the mandrel upper end, single
It is connected to valve opening with the centre bore of mandrel, nonreturn valve core is equipped in unidirectional valve opening, the top of nonreturn valve core is equipped with strength magnet ring, by force
Power magnet ring is located at immediately below secondary strength magnetic patch.
2. the check valve opening-closing control mechanism of small-bore pressure maintaining cord coring drill according to claim 1, feature exist
In: the lower end surface for playing clamping stent is equipped with nonmetallic pressing sleeve；The nonmetallic pressing sleeve is located at immediately below secondary strength magnetic patch, strength
Magnet ring is placed in nonmetallic pressing sleeve.
3. the check valve opening-closing control mechanism of small-bore pressure maintaining cord coring drill according to claim 1, feature exist
In: the main strength magnetic patch is opposite with the pole orientation of secondary strength magnetic patch；The secondary strength magnetic patch and nonreturn valve core top
Strength magnet ring pole orientation it is identical.
4. the check valve opening-closing control mechanism of small-bore pressure maintaining cord coring drill according to claim 1, feature exist
In: the return spring force of the bullet card component is greater than the magnetic force between main strength magnetic patch and secondary strength magnetic patch.
5. the check valve opening-closing control mechanism of small-bore pressure maintaining cord coring drill according to claim 1, feature exist
In: the opening force of the nonreturn valve core is greater than the magnetic force of main strength magnetic patch and the magnetic force of secondary strength magnetic patch, is less than main strong magnetic
Block and secondary strength magnetic patch be stacked after magnetic force.
6. the check valve opening-closing control mechanism of small-bore pressure maintaining cord coring drill according to claim 1, feature exist
In: the receipts card cylinder and bullet clamping stent is handled through demagnetization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910298799.XA CN109882101A (en) | 2019-04-15 | 2019-04-15 | An opening and closing control mechanism of the upper end of a small-diameter pressure-maintaining wire rope coring tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910298799.XA CN109882101A (en) | 2019-04-15 | 2019-04-15 | An opening and closing control mechanism of the upper end of a small-diameter pressure-maintaining wire rope coring tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109882101A true CN109882101A (en) | 2019-06-14 |
Family
ID=66937325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910298799.XA Withdrawn CN109882101A (en) | 2019-04-15 | 2019-04-15 | An opening and closing control mechanism of the upper end of a small-diameter pressure-maintaining wire rope coring tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109882101A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111119738A (en) * | 2020-02-18 | 2020-05-08 | 湖南科技大学 | Portable seabed multi-point position fidelity core drilling machine for submersible |
| CN111472705A (en) * | 2020-05-11 | 2020-07-31 | 珠海市英格尔特种钻探设备有限公司 | In-situ soil sample collecting device and method based on rope core drilling tool |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4129184A (en) * | 1977-06-27 | 1978-12-12 | Del Norte Technology, Inc. | Downhole valve which may be installed or removed by a wireline running tool |
| JP2005273514A (en) * | 2004-03-24 | 2005-10-06 | Shimadzu Corp | Check valve and fluid feeding pump using the same |
| US20100012383A1 (en) * | 2007-03-03 | 2010-01-21 | Longyear Tm, Inc. | High productivity core drilling system |
| CN103806888A (en) * | 2012-11-12 | 2014-05-21 | 中国石油天然气股份有限公司 | Underground infinite-stage-number-control fracturing sliding sleeve |
| CN203880160U (en) * | 2014-06-18 | 2014-10-15 | 皖西学院 | Magnet type one-way valve |
| US20140353044A1 (en) * | 2012-01-27 | 2014-12-04 | Atlas Copco Canada Inc | Core barrel head assembly |
| CN106351597A (en) * | 2016-11-17 | 2017-01-25 | 湖南科技大学 | Natural gas hydrate pressure retaining rope coring drill applicable to submarine drill |
| CN107477219A (en) * | 2017-01-06 | 2017-12-15 | 扬州科源汽车部件有限公司 | A kind of dual fail-safe magnetic-type check valve |
| CN208565689U (en) * | 2018-07-19 | 2019-03-01 | 北京泰利新能源科技发展有限公司 | A kind of check valve |
| CN209942780U (en) * | 2019-04-15 | 2020-01-14 | 湖南科技大学 | One-way valve opening and closing control mechanism of small-caliber pressure maintaining rope coring drilling tool |
-
2019
- 2019-04-15 CN CN201910298799.XA patent/CN109882101A/en not_active Withdrawn
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4129184A (en) * | 1977-06-27 | 1978-12-12 | Del Norte Technology, Inc. | Downhole valve which may be installed or removed by a wireline running tool |
| JP2005273514A (en) * | 2004-03-24 | 2005-10-06 | Shimadzu Corp | Check valve and fluid feeding pump using the same |
| US20100012383A1 (en) * | 2007-03-03 | 2010-01-21 | Longyear Tm, Inc. | High productivity core drilling system |
| CN101675205A (en) * | 2007-03-03 | 2010-03-17 | 博尔特朗耶尔 | High productivity core drilling system |
| US20140353044A1 (en) * | 2012-01-27 | 2014-12-04 | Atlas Copco Canada Inc | Core barrel head assembly |
| CN103806888A (en) * | 2012-11-12 | 2014-05-21 | 中国石油天然气股份有限公司 | Underground infinite-stage-number-control fracturing sliding sleeve |
| CN203880160U (en) * | 2014-06-18 | 2014-10-15 | 皖西学院 | Magnet type one-way valve |
| CN106351597A (en) * | 2016-11-17 | 2017-01-25 | 湖南科技大学 | Natural gas hydrate pressure retaining rope coring drill applicable to submarine drill |
| CN107477219A (en) * | 2017-01-06 | 2017-12-15 | 扬州科源汽车部件有限公司 | A kind of dual fail-safe magnetic-type check valve |
| CN208565689U (en) * | 2018-07-19 | 2019-03-01 | 北京泰利新能源科技发展有限公司 | A kind of check valve |
| CN209942780U (en) * | 2019-04-15 | 2020-01-14 | 湖南科技大学 | One-way valve opening and closing control mechanism of small-caliber pressure maintaining rope coring drilling tool |
Non-Patent Citations (1)
| Title |
|---|
| 许俊良;薄万顺;朱杰然;: "天然气水合物钻探取心关键技术研究进展" * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111119738A (en) * | 2020-02-18 | 2020-05-08 | 湖南科技大学 | Portable seabed multi-point position fidelity core drilling machine for submersible |
| CN111472705A (en) * | 2020-05-11 | 2020-07-31 | 珠海市英格尔特种钻探设备有限公司 | In-situ soil sample collecting device and method based on rope core drilling tool |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109882101A (en) | An opening and closing control mechanism of the upper end of a small-diameter pressure-maintaining wire rope coring tool | |
| CN102686819B (en) | System for preventing idle blow and adjusting hitting power of breaker | |
| CN103670337B (en) | Split plunger device for continuous production without closing well | |
| CN101892823B (en) | Method for throwing and fishing downhole choke without steel wire in natural gas well | |
| CN103343672B (en) | Device and method for removing horizontal drilling cuttings bed of petroleum and natural gas drilling | |
| CN105041250A (en) | Rope coring percussive drill tool | |
| CN105569563A (en) | Rotary drilling rig bit capable of impact drilling | |
| CN105649611B (en) | Concentric electric layered pressure drop testing instrument and testing method thereof | |
| CN106351597A (en) | Natural gas hydrate pressure retaining rope coring drill applicable to submarine drill | |
| CN107060702B (en) | Coupling type downhole choke | |
| CN102808587B (en) | Double-elastic-clamp in-place locking wire line coring suspension positioning mechanism | |
| CN204311987U (en) | Slip type downhole buffer of tubing plug | |
| CN202338261U (en) | Repeated oil pipe plug | |
| CN202165053U (en) | Novel hydraulic control underground sliding sleeve switch valve | |
| CN208763630U (en) | A kind of exploitation of gas hydrates system | |
| CN101655084B (en) | Vortex effluent conveyer in natural gas exploitation | |
| CN205259935U (en) | Drill bit is dug soon to impacted style | |
| CN103321624A (en) | Threaded sliding sleeve with ball seat capable of being taken out | |
| CN109826580A (en) | A one-way valve opening control mechanism for a pressure-maintaining rope core drilling tool | |
| CN105604514A (en) | Submarine sediment wire line coring drilling tool suitable for submarine drilling rig | |
| CN109826578A (en) | Safe gas hydrate rotary pressure-maintaining corer | |
| CN209942780U (en) | One-way valve opening and closing control mechanism of small-caliber pressure maintaining rope coring drilling tool | |
| CN201159073Y (en) | Natural gas down-hole dropping equipment | |
| US3012540A (en) | Percussion drilling apparatus | |
| CN101162016B (en) | Yield highly effective oil-well pump for mechanical oil production |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190614 |