CN206592088U - The unidirectionally controlled inner cylinder mechanism of reacting cycle - Google Patents
The unidirectionally controlled inner cylinder mechanism of reacting cycle Download PDFInfo
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- CN206592088U CN206592088U CN201720259074.6U CN201720259074U CN206592088U CN 206592088 U CN206592088 U CN 206592088U CN 201720259074 U CN201720259074 U CN 201720259074U CN 206592088 U CN206592088 U CN 206592088U
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- reacting cycle
- inner cylinder
- unidirectionally controlled
- controlled inner
- pipe nipple
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- 238000007789 sealing Methods 0.000 claims abstract description 6
- 238000005553 drilling Methods 0.000 abstract description 59
- 239000012530 fluid Substances 0.000 abstract description 12
- 210000002445 nipple Anatomy 0.000 description 97
- 238000005520 cutting process Methods 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a kind of unidirectionally controlled inner cylinder mechanism of reacting cycle, including the unidirectionally controlled inner cylinder of reacting cycle with hollow cavity, the outer surface top of the unidirectionally controlled inner cylinder of reacting cycle is arranged at intervals with multiple seal grooves, sealing ring is separately installed with each seal groove, the outer surface bottom of the unidirectionally controlled inner cylinder of reacting cycle is provided with external screw thread, the outer surface bottom of the unidirectionally controlled inner cylinder of reacting cycle is in tapered cone structure towards end, the outer surface of the unidirectionally controlled inner cylinder of reacting cycle is arranged at intervals with multiple wiper blocks, the outer surface bottom of the unidirectionally controlled inner cylinder of reacting cycle is provided with multiple check valves.The unidirectionally controlled inner cylinder mechanism structure of the utility model reacting cycle is simple, ingenious in design, when being assembled into reverse circulating drilling tool drilling well with other parts, both direct circulation drilling well can be realized, and when boring chance leakage stratum, drilling fluid can pass through from the reacting cycle device of drilling tool, realize counterflush drilling.
Description
Technical field
The utility model is related to drilling equipment technical field, espespecially a kind of unidirectionally controlled inner cylinder mechanism of reacting cycle.
Background technology
In fields such as oil, geological drilling, completion practices, existing drilling model be direct circulation drilling well, i.e. drilling fluid from
Drilling tool endoporus is pumped into, and enters pit shaft after drill bit outflow, is carried annular space of the drilling cuttings between drilling tool and the borehole wall and is returned to stratum, through ground
The processing such as face cleaning system desanding is pumped into drilling tool endoporus to form a direct circulation again after safeguarding.
When boring chance leakage stratum, enter stratum from drop ply when drilling fluid is returned from shaft bottom, it is impossible to normally return out stratum, from
And cause a series of undergrounds complicated and accident.Particularly shallow-layer or top layer drilling well, because buried depth of strata is shallow, crushing rock formation, are dredged
Pine, often expends the final still leak stopping of a large amount of human and material resources and fails, cause drilling well work not proceed.
Lack unidirectional control device in existing control pipe nipple structure, the drilling fluid and drilling cuttings returned from shaft bottom is easily accessible
Annular space between reacting cycle inner cylinder mechanism, reacting cycle outer barrel, once and drilling cuttings enter, easily formed blocking cause reacting cycle
Failure.
Utility model content
The purpose of this utility model is to provide a kind of reacting cycle unidirectionally controlled inner cylinder mechanism, and its is simple in construction, and design is skilful
It is wonderful, when being assembled into reverse circulating drilling tool drilling well with other parts, conventional direct circulation drilling well can have both been realized, and meet leakage stratum boring
When, drilling fluid can also pass through from the reacting cycle device of drilling tool, realize counterflush drilling.
To achieve these goals, technical solution of the present utility model is：A kind of unidirectionally controlled inner cylinder machine of reacting cycle
Structure, including the unidirectionally controlled inner cylinder of reacting cycle with hollow cavity, on the outer surface of the unidirectionally controlled inner cylinder of reacting cycle
Portion is arranged at intervals with multiple seal grooves, each seal groove and is separately installed with sealing ring.
The unidirectionally controlled inner cylinder mechanism of the utility model reacting cycle, wherein under the outer surface of the unidirectionally controlled inner cylinder of the reacting cycle
Portion is provided with external screw thread.
The unidirectionally controlled inner cylinder mechanism of the utility model reacting cycle, wherein under the outer surface of the unidirectionally controlled inner cylinder of the reacting cycle
Portion is in tapered cone structure towards end.
The unidirectionally controlled inner cylinder mechanism of the utility model reacting cycle, wherein between the outer surface of the unidirectionally controlled inner cylinder of the reacting cycle
Every being provided with multiple wiper blocks.
The unidirectionally controlled inner cylinder mechanism of the utility model reacting cycle, wherein under the outer surface of the unidirectionally controlled inner cylinder of the reacting cycle
Portion is provided with multiple check valves.
After such scheme, the unidirectionally controlled inner cylinder mechanism of the utility model reacting cycle passes through the unidirectionally controlled inner cylinder of reacting cycle
The hollow cavity of setting, when the unidirectionally controlled inner cylinder upper and lower end of reacting cycle respectively with pipe nipple on interpolation type reacting cycle and reacting cycle list
To control pipe nipple connection, the connection upper plug type reacting cycle device or down inserting type is counter follows in interpolation type reacting cycle unidirectionally controlled pipe nipple upper end
Loop device, it is sequentially connected in the lower end of the unidirectionally controlled pipe nipple of reacting cycle drill collar and drill bit composition upper plug type reverse circulating drilling tool or underthrust
Formula reverse circulating drilling tool, upper pipe nipple endoporus, the reacting cycle of the unidirectionally controlled inner cylinder of reacting cycle and pipe nipple on interpolation type reacting cycle are unidirectionally controlled
The control pipe nipple endoporus connection of pipe nipple processed simultaneously connects with the central bore of upper plug type reacting cycle device or down inserting type reacting cycle device
First passage that is logical, being formed in drilling tool, is easy to drilling fluid from first passage by carrying out conventional direct circulation drilling well；And followed by counter
Multiple pod apertures circumferentially arranged on pipe nipple on the interpolation type reacting cycle of ring unidirectional control device, multiple pod apertures are with being connected
Formed between the unidirectionally controlled inner cylinder mechanism outer tube wall of reacting cycle and the unidirectionally controlled outer tube inner wall of reacting cycle annular space connection, with
In multiple second pod apertures, multiple 3rd pod apertures, reacting cycle on upper plug type reacting cycle device or down inserting type reacting cycle device
Second channel in the annular space formation drilling tool formed between cylinder mechanism outer tube wall and reacting cycle outer tube inner wall, utilizes this passage
Counterflush drilling is carried out in leakiness stratum, due to being provided with multiple lists in the unidirectionally controlled inner cylinder mechanism of the utility model reacting cycle
To valve, drilling fluid and drilling cuttings mixture can be effectively controlled to be returned along on the first passage of drilling tool, and compressed gas is from second
Passage flows to first passage, and drilling fluid and drilling cuttings are promoted under gas lift and return out ground so that also can in leakiness stratum
It is normally carried out oil drilling.
Brief description of the drawings
Fig. 1 is the structural representation of the unidirectionally controlled inner cylinder mechanism of the utility model reacting cycle；
Fig. 2 is the structural representation of the reacting cycle unidirectional control device with the unidirectionally controlled inner cylinder mechanism of the utility model reacting cycle
Figure；
Fig. 3 is the cross section structure diagram of pipe nipple on the interpolation type reacting cycle of reacting cycle unidirectional control device shown in Fig. 2；
Fig. 4 is Fig. 3 A-A faces cross section structure diagram；
Fig. 5 is the structural representation of the unidirectionally controlled outer barrel of reacting cycle of reacting cycle unidirectional control device shown in Fig. 2；
Fig. 6 is the structural representation of the unidirectionally controlled pipe nipple of reacting cycle of reacting cycle unidirectional control device shown in Fig. 2；
Fig. 7 is the down inserting type reverse circulating drilling tool structural representation with the unidirectionally controlled inner cylinder mechanism of the utility model reacting cycle；
Fig. 8 is the structural representation of the down inserting type reacting cycle device of Fig. 7 down inserting type reverse circulating drilling tool.
Below in conjunction with the accompanying drawings, the utility model is described further by embodiment；
Embodiment
As shown in figure 1, the unidirectionally controlled inner cylinder mechanism of the utility model reacting cycle includes the reacting cycle list with hollow cavity
To control inner cylinder 1, the outer surface top of the unidirectionally controlled inner cylinder 1 of reacting cycle is arranged at intervals with multiple seal grooves 2, each seal groove 2
It is separately installed with sealing ring 3.The outer surface bottom of the unidirectionally controlled inner cylinder 1 of reacting cycle is provided with external screw thread 4.Reacting cycle is unidirectionally controlled
The outer surface bottom of inner cylinder 1 is in tapered cone structure towards end.The outer surface of the unidirectionally controlled inner cylinder 1 of reacting cycle is arranged at intervals
There are multiple wiper blocks 5.The outer surface bottom of the unidirectionally controlled inner cylinder 1 of reacting cycle is provided with multiple check valves 6.
As shown in Fig. 2 with the reacting cycle unidirectional control device of the unidirectionally controlled inner cylinder mechanism of the utility model reacting cycle by upper
Downwards successively include interpolation type reacting cycle on pipe nipple 7, the unidirectionally controlled inner cylinder mechanism 8 of reacting cycle, the unidirectionally controlled outer barrel 9 of reacting cycle and
The unidirectionally controlled pipe nipple 10 of reacting cycle.
As shown in Figure 3 and Figure 4, pipe nipple 7 includes upper nipple body 11, the center of upper nipple body 11 on interpolation type reacting cycle
Upper pipe nipple endoporus 12 is provided with the axial direction, and upper pipe nipple endoporus 12 is three-stage cylindrical hole, the epicoele of upper pipe nipple endoporus 12
Aperture is more than the lumen aperture and cavity of resorption aperture of upper pipe nipple endoporus 12, and the cavity of resorption aperture of upper pipe nipple endoporus 12 is more than lumen aperture,
Upper nipple body 11 circumferentially arranged with multiple pod apertures 13 through its upper and lower end, the axial line of pod apertures 13 with upper pipe nipple
The axis parallel in hole 12, upper pipe nipple endoporus 12 be located at multiple pod apertures 13 between, and the axial line of upper pipe nipple endoporus 12 with it is many
The round-shaped axial line that individual pod apertures 13 are surrounded is overlapped.The upper end of pod apertures 13 is connected with the epicoele of upper pipe nipple endoporus 12.
The epicoele bottom of upper pipe nipple endoporus 12 and the lower end of upper nipple body 11 are respectively equipped with the first guiding gutter of ring-type 14 and ring-type second
Guiding gutter 15, the first guiding gutter 14, the second guiding gutter 15 are connected with multiple pod apertures 13 respectively, and the first guiding gutter 14, second are led
The axis parallel of the axial line of chute 15 respectively with corresponding pod apertures 13.The upper cavity wall of upper pipe nipple endoporus 12 is provided with first
Internal thread 16, the outer surface lower end of upper nipple body 11 is provided with pipe nipple 7 on the second external screw thread 17, interpolation type reacting cycle and passes through second
External screw thread 17 is connected with the upper end of the unidirectionally controlled outer barrel of reacting cycle 9.
The unidirectionally controlled inner cylinder mechanism 8 of reacting cycle is placed through the inner chamber of the unidirectionally controlled outer barrel 9 of reacting cycle, with reference to shown in Fig. 1
The structure of the unidirectionally controlled inner cylinder mechanism of reacting cycle, here is omitted.In wherein the unidirectionally controlled inner cylinder mechanism 8 of reacting cycle is plugged in
The cavity of resorption of the upper pipe nipple endoporus 12 of pipe nipple 7 on the formula of inserting reacting cycle, the unidirectionally controlled inner cylinder mechanism 8 of reacting cycle passes through multiple sealing rings 3
It is tightly connected with pipe nipple 7 on interpolation type reacting cycle.The spaced multiple wiper blocks in outer surface of the unidirectionally controlled inner cylinder 1 of reacting cycle
5 be for ensureing the unidirectionally controlled inner cylinder mechanism 8 of reacting cycle in the inner chamber of the unidirectionally controlled outer barrel 9 of reacting cycle between two parties.Reacting cycle list
It is connected to control inner cylinder mechanism 8 by the unidirectionally controlled pipe nipple 10 of external screw thread 4 and reacting cycle.
With reference to shown in Fig. 5, the inner chamber upper end of the unidirectionally controlled outer barrel 9 of reacting cycle is provided with the second internal thread 18, reacting cycle list
The outer surface lower end of control outer barrel 9 is provided with the 3rd external screw thread 19, the unidirectionally controlled outer barrel 9 of reacting cycle passes through the second internal thread 18
It is spirally connected fixation with the second external screw thread 17 of pipe nipple 7 on interpolation type reacting cycle, the unidirectionally controlled outer barrel 9 of reacting cycle passes through the 3rd external screw thread
19 are connected with the unidirectionally controlled pipe nipple of reacting cycle 10.
With reference to shown in Fig. 6, the unidirectionally controlled pipe nipple 10 of reacting cycle is included in control nipple body 20, control nipple body 20
The heart is in the axial direction provided with the small step shape control pipe nipple endoporus 21 in the big bottom in top, the upper cavity wall of control pipe nipple endoporus 21
Provided with the 3rd internal thread 22, the lower cavity wall top of control pipe nipple endoporus 21 is provided with the 4th internal thread 23.Control pipe nipple endoporus 21
Epicoele, control pipe nipple endoporus 21 cavity of resorption shaped upper part be towards openend be flaring cone structure.Control nipple body 20
Outer surface lower end be provided with the 4th external screw thread 24.Control nipple body 20 unidirectionally controlled outer by the 3rd internal thread 22 and reacting cycle
3rd external screw thread 19 of cylinder 9 is spirally connected fixation, and control nipple body 20 passes through the 4th internal thread 23 and the unidirectionally controlled inner cylinder of reacting cycle
The external screw thread 4 of mechanism is spirally connected fixation.
It is illustrated in figure 7 and is shown with the down inserting type reverse circulation drilling lamps structure of the unidirectionally controlled inner cylinder mechanism of the utility model reacting cycle
It is intended to, it includes down inserting type reacting cycle device 25, reacting cycle unidirectional control device 52, drill collar 53 and drill bit successively from top to bottom
54, the lower end connection drill collar 53 of the unidirectionally controlled pipe nipple 10 of reacting cycle, the lower end connection drill bit 54 of drill collar 53.Wherein：
With reference to shown in Fig. 8, down inserting type reacting cycle device 25 includes pipe nipple 26, spinner on the screw fastening type reacting cycle of upper end
Pipe nipple 26 includes the center of nipple body 27 on nipple body 27 on second, second in the axial direction provided with top on formula reacting cycle
Pipe nipple endoporus 28 in the big small step shape second in bottom, on second nipple body 27 circumferentially arranged with it is multiple through thereon,
The axis parallel of nipple body 27 in second pod apertures 29 of lower end, the second pod apertures 29 and second, pipe nipple endoporus on second
28 epicoeles for being located at pipe nipple endoporus 28 on the center of multiple second pod apertures 29, the upper end and second of the second pod apertures 29 connect
It is logical.The lower end of nipple body 27 is respectively equipped with the guiding gutter 30 of ring-type the 3rd on the epicoele bottom and second of pipe nipple endoporus 28 on second
With the guiding gutter 31 of ring-type the 4th, triplicate form guiding gutter 30, the 4th guiding gutter 31 are connected with multiple second pod apertures 29 respectively, the
The axial line axis parallel respectively with each second pod apertures 29 of three guiding gutters 30, the 4th guiding gutter 31.On second in pipe nipple
The round-shaped center line that the center line in hole 28 is surrounded with multiple second pod apertures 29 is overlapped.Pipe nipple endoporus 28 is upper on second
The lower cavity wall bottom that cavity wall is provided with pipe nipple endoporus 28 on the 5th internal thread 32, second is provided with the 6th internal thread 33.Pipe nipple on second
The epicoele of endoporus 28, the cavity of resorption lower shape of pipe nipple endoporus 28 is towards the cone structure that openend is flaring on second.Second
The outer surface lower end of upper nipple body 27 is provided with the 5th external screw thread 34.Nipple body on the second of pipe nipple 26 on screw fastening type reacting cycle
27 inner chamber lower end is connected by the 6th internal thread 33 with reacting cycle inner cylinder mechanism 35.Reacting cycle inner cylinder mechanism 35 includes reacting cycle
Inner cylinder 36 and multiple second wiper blocks 37 for being installed on the outer surface of reacting cycle inner cylinder 36, the outer surface bottom of reacting cycle inner cylinder 36 is set
It is equipped with multiple second seal grooves 38, each second seal groove 38 and is separately installed with the second sealing ring 39.Outside reacting cycle inner cylinder 36
Surface upper end is provided with the 6th external screw thread 40, and reacting cycle inner cylinder 36 passes through of nipple body 27 on the 6th external screw thread 40 and second
Six internal threads 33, which are spirally connected, to be fixed together.The lower end of nipple body 27 passes through the 5th external screw thread 34 and reacting cycle outer barrel 41 on second
Connection.The inner chamber upper end of reacting cycle outer barrel 41 is provided with the 7th internal thread 42, and the outer surface lower end of reacting cycle outer barrel 41 is provided with
7th external screw thread 43, reacting cycle outer barrel 41 is spirally connected by the 7th internal thread 42 and the 5th external screw thread 34 of nipple body on second 27
It is fixed together.Reacting cycle inner cylinder mechanism 35 is set in the inner chamber of reacting cycle outer barrel 41, and the lower end of reacting cycle outer barrel 41 is connected with
Pipe nipple 44 under interpolation type reacting cycle.Pipe nipple 44 includes lower nipple body 45, the center of lower nipple body 45 under interpolation type reacting cycle
Provided with the pipe nipple endoporus 46 under the stairstepping of its axial line, the inner chamber upper end of lower nipple body 45 is provided with the 8th internal thread
47, the outer surface lower end of lower nipple body 45 is provided with the 8th external screw thread 48, reacting cycle outer barrel 41 by the 7th external screw thread 43 with it is interior
The 8th internal thread 47 for inserting pipe nipple 44 under formula reacting cycle is spirally connected fixation, and lower nipple body 45 passes through the 8th screw thread 48 and reacting cycle list
First internal thread 16 of pipe nipple 7 is spirally connected fixation on to the interpolation type reacting cycle of control device 52.Insert the bottom of reacting cycle inner cylinder 36
It is connected in the inner chamber of lower pipe nipple endoporus 46 of lower nipple body 45.It is circumferentially arranged in lower nipple body 45 to have multiple 3rd water conservancy diversion
Hole 49, the axis parallel of the axial line of multiple 3rd pod apertures 49 and lower pipe nipple endoporus 46, the axial line of lower nipple body 45
The round-shaped center line surrounded with multiple 3rd pod apertures 49 is overlapped.The upper and lower end of lower nipple body 45 is respectively arranged with
The guiding gutter 50 of ring-type the 5th and the guiding gutter 51 of ring-type the 6th, multiple 3rd pod apertures 49 are led with the 5th guiding gutter 50 and the 6th respectively
Chute 51 is connected.The upper end of multiple 3rd pod apertures 49 and the outer wall of reacting cycle inner cylinder mechanism 35 and the inwall of reacting cycle outer barrel 41
Between annular space communicate, the annular space is communicated with multiple second pod apertures 29 again.The lower end of multiple 3rd pod apertures 49 respectively with it is many
The lower end of individual pod apertures 13 is communicated, and the lower end of multiple pod apertures 13 and the outer wall of the unidirectionally controlled inner cylinder mechanism 8 of reacting cycle and counter is followed
Annular space between the inwall of the unidirectionally controlled outer barrel 9 of ring is communicated.
The down inserting type reverse circulating drilling tool being assembled into using the unidirectionally controlled inner cylinder mechanism of the utility model reacting cycle is combined, instead of
Existing drilling tool carries out wellbore construction, when normal drilling well, on screw fastening type reacting cycle on the second of pipe nipple 26 pipe nipple endoporus 28 with it is anti-
Circulate the lower pipe nipple endoporus 46 of pipe nipple 44 under the inner chamber of inner cylinder mechanism 35, interpolation type reacting cycle, pipe nipple 7 on interpolation type reacting cycle
In the inner chamber of the unidirectionally controlled inner cylinder mechanism 8 of upper pipe nipple endoporus 12, reacting cycle and the control pipe nipple of the unidirectionally controlled pipe nipple 10 of reacting cycle
Hole 21 is connected, the first passage formed in drilling tool, and drilling fluid is from first passage by carrying out conventional direct circulation drilling well.
When boring chance leakage stratum, by operating the drilling fluid guiding device on ground, from pipe nipple 26 on screw fastening type reacting cycle
The second pod apertures 29 be pumped into high pressure air, high pressure air is via multiple second pod apertures 29, reacting cycle inner cylinder machine
The annular space that is formed between the outer tube wall of structure 35 and the inner tubal wall of reacting cycle outer barrel 41, multiple 3rd pod apertures 49, multiple lead
The of the annular space composition formed between the unidirectionally controlled inner cylinder mechanism 8 of discharge orifice 13, reacting cycle and the unidirectionally controlled outer barrel 9 of reacting cycle
Two passages, high pressure air leads to via the check valve 6 on the unidirectionally controlled tube wall of inner cylinder mechanism 8 of reacting cycle into the first of drilling tool
Road Hou Fanchu ground, annular space between drilling tool, the borehole wall (casing wall) and drilling tool first passage formation positive differential pressure, ground from drilling tool,
Annular space between the borehole wall (casing wall) is pumped into drilling fluid, and drilling fluid reaches shaft bottom from annular space, carries drilling cuttings into drill bit 54, entrance
Drilling tool first passage, returns out ground under the lasting promotion of high pressure air, realizes counterflush drilling.
Embodiment described above is only that preferred embodiment of the present utility model is described, not new to this practicality
The scope of type is defined, on the premise of the utility model design spirit is not departed from, this area ordinary skill technical staff couple
Various modifications and improvement that the technical solution of the utility model is made, all should fall into what claims of the present utility model were determined
In protection domain.
Claims (5)
1. a kind of unidirectionally controlled inner cylinder mechanism of reacting cycle, it is characterised in that unidirectionally controlled including the reacting cycle with hollow cavity
Inner cylinder, the outer surface top of the unidirectionally controlled inner cylinder of reacting cycle, which is arranged at intervals with multiple seal grooves, each seal groove, to be divided
Sealing ring is not installed.
2. the unidirectionally controlled inner cylinder mechanism of reacting cycle as claimed in claim 1, it is characterised in that in the reacting cycle is unidirectionally controlled
The outer surface bottom of cylinder is provided with external screw thread.
3. the unidirectionally controlled inner cylinder mechanism of reacting cycle as claimed in claim 2, it is characterised in that in the reacting cycle is unidirectionally controlled
The outer surface bottom of cylinder is in tapered cone structure towards end.
4. the unidirectionally controlled inner cylinder mechanism of reacting cycle as described in one of claim 1-3, it is characterised in that the reacting cycle is unidirectional
The outer surface of control inner cylinder is arranged at intervals with multiple wiper blocks.
5. the unidirectionally controlled inner cylinder mechanism of reacting cycle as claimed in claim 4, it is characterised in that in the reacting cycle is unidirectionally controlled
The outer surface bottom of cylinder is provided with multiple check valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720259074.6U CN206592088U (en) | 2017-03-16 | 2017-03-16 | The unidirectionally controlled inner cylinder mechanism of reacting cycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720259074.6U CN206592088U (en) | 2017-03-16 | 2017-03-16 | The unidirectionally controlled inner cylinder mechanism of reacting cycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206592088U true CN206592088U (en) | 2017-10-27 |
Family
ID=60124362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720259074.6U Active CN206592088U (en) | 2017-03-16 | 2017-03-16 | The unidirectionally controlled inner cylinder mechanism of reacting cycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206592088U (en) |
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2017
- 2017-03-16 CN CN201720259074.6U patent/CN206592088U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Reverse circulation unidirectional control inner cylinder mechanism Effective date of registration: 20220325 Granted publication date: 20171027 Pledgee: Agricultural Bank of China Limited Bayingolin branch Pledgor: XINJIANG GRAND OILFIELD TECHNOLOGY Co.,Ltd. Registration number: Y2022650000012 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230320 Granted publication date: 20171027 Pledgee: Agricultural Bank of China Limited Bayingolin branch Pledgor: XINJIANG GRAND OILFIELD TECHNOLOGY Co.,Ltd. Registration number: Y2022650000012 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Reverse circulation one-way control inner cylinder mechanism Effective date of registration: 20230322 Granted publication date: 20171027 Pledgee: Agricultural Bank of China Limited Bayingolin branch Pledgor: XINJIANG GRAND OILFIELD TECHNOLOGY Co.,Ltd. Registration number: Y2023980035709 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20171027 Pledgee: Agricultural Bank of China Limited Bayingolin branch Pledgor: XINJIANG GRAND OILFIELD TECHNOLOGY Co.,Ltd. Registration number: Y2023980035709 |