CN207048694U - Hydraulic positioner - Google Patents
Hydraulic positioner Download PDFInfo
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- CN207048694U CN207048694U CN201720685429.8U CN201720685429U CN207048694U CN 207048694 U CN207048694 U CN 207048694U CN 201720685429 U CN201720685429 U CN 201720685429U CN 207048694 U CN207048694 U CN 207048694U
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Abstract
It the utility model is related to a kind of hydraulic positioner in oil and gas well drilling, geological prospecting, mine probing, cbm development field of tool.The hydraulic positioner is mainly made up of matrix, pedestal, bayonet lock, sealing device, support frame assembly, support block, pressure transmission hole.Hydraulic positioner of the present utility model makes supporting module stretch out and be fixed on the borehole wall using the hydraulic coupling in casing string, so the casing string of centre can be just lifted away from the lower borehole wall by each two hydraulic positioner, and it is located at well center, it is favorably improved displacement efficiency, improve cementing quality, safe and efficient exploitation for China's petroleum resources, reduce production cost etc. and play an important roll.Meanwhile hydraulic positioner also have the advantages that it is simple in construction, easy to operate, be easily installed, securely and reliably, cost it is cheap.
Description
Technical field
Oil and gas well drilling, CBM Drilling, geological prospecting, mine boring tool field are the utility model is related to, especially
It is a kind of hydraulic positioner.
Background technology
In the complex structural wells such as long horizontal sections horizontal well, extended reach well, casing string is located at the borehole wall under well due to conducting oneself with dignity,
Casing string is seriously eccentric with well, causes that casing string bottom drilling fluid displacing efficiency is low, and cementing quality is poor, have impact on labyrinth
The safety in production of well.For the improvement of casing string centralizer, casing stabbing board mainly is used both at home and abroad, mainly including rigid righting
Device, elastic centralizer.Rigid centralizer has the characteristics that intensity is high, is unlikely to deform, but cost is higher, annular space cement mortar flow-passing surface
Product is smaller, is of limited application；Elastic centralizer has the characteristics that cost is low, processing and manufacturing is convenient, but is easily deformed, and improves set
Tubing string centralizer is undesirable, very low yet with cost, therefore field application is relatively more.In order to overcome above two centralizer
Deficiency, further improve casing string centralizer in the wellbore, the polytype hydraulic centralizing of domestic R ＆ D design in succession
Device（Such as:201210359506.2、201410591067.7、201410591048.4、201210035980.X、
201210562097.6、201620167210.4、201320804720.4）, by analysis as can be seen that using hydraulic-driven
The mode of centralizer enlarged outside diameter, have and do not expand with fashionable external diameter under casing string, tripping in frictional resistance is small, lower to design well depth
Afterwards, centralizer enlarged outside diameter improves the features such as casing string centralizer effect is preferable, but it is urgently to be resolved hurrily to still suffer from problems with,（1）
Axial dimension grow, connected in casing string it is multiple can cause casing string integral rigidity increase, reduce casing string in complicated bend well
, the risk that tripping in is hampered be present in the handling capacity of section；（2）Hydraulic control module is complicated, and processing requires high with installation accuracy,
Reduce the convenience of operation；（3）Use cost height limits the scope of popularization and application, if installation number is more, casing string is placed in the middle
Degree is better, and expense is also higher, if reducing installation number, though fund can be saved, casing string centralizer will significantly drop
It is low.
Utility model content
The purpose of this utility model be for it is above-mentioned both at home and abroad existing centralizer exist the problem of, there is provided one kind can compared with
With casing string G.I.H to reduce frictional resistance during small external diameter state, after the lower well depth to design, and can is made using hydraulic-driven
External diameter becomes big, and casing string is lifted away from into the lower borehole wall, improves casing string centralizer, while also simple in construction, dependable performance, safeguards behaviour
Make hydraulic positioner convenient, that cost is cheap.
Technical scheme is used by the utility model solves its technical problem：
Hydraulic positioner, mainly it is made up of pedestal 2, bayonet lock 3, support frame assembly 5, support block 6；It is characterized in that：The base
Seat 2, support frame assembly 5 are in garden tubular structure, and its inwall is equipped with the mounting groove of T-shaped or swallow-tail form, the inner surface of bayonet lock 3 vertically
For cone structure, multiple bayonet locks 3 and elastic support are each defined in corresponding mounting groove；Support frame assembly 5 and pedestal 2
From inside to outside by forming sealing grafting matching mechanism vertically after respective upper and lower spacing convex edge nesting, support block 6 is in garden post
Shape structure, support block 6 are nested in support frame assembly 5, and form sealing grafting matching mechanism with support assembly 5；Support frame
Assembly 5 and support block 6 form spacing cooperation during axially extending with the corresponding top end face of bayonet lock 3.
Such scheme further comprises：
Support frame assembly 5 be multistage support frame pass sequentially through from inside to outside it is respective form up and down after spacing convex edge nesting by
Level sealing grafting matching mechanism, every grade of support frame inwall are equipped with the mounting groove of T-shaped or swallow-tail form vertically, and in each installation
Installation bayonet lock 3 and resilient support, support block 6 are arranged in the most interior one level of support frame of support frame assembly 5 in groove.
Described pedestal 2 is 3-5, and is fixed on by consistent seal in the outside groove of cylindrical base body 1, and groove is provided with
With the pressure transmission hole 7 of the inner chamber of pedestal 2 insertion.
Inlay friction-proof piece in the outer surface of support block 6.
Between multistage support frame in support frame assembly 5, between support frame assembly 5 and support block 6, support frame assembly 5 with
Sealing device 4 is installed respectively between pedestal 2.
Hydraulic positioner of the present utility model, can either ensure the centralizer of casing string, and and can reduces pair to greatest extent
The influence of annular space area of passage, the flow velocity of cement mortar is improved, and then improve cementing quality.According to the work of complex structural well completion
Skill technical requirements, the installation site and quantity of hydraulic positioner can be adjusted at any time, site test results show, are positioned using hydraulic pressure
Device, which can be improved the cementing quality of complex structural well to outstanding grade, safety in production cycle by current qualified grade, averagely to be extended
More than 35%, a large amount of development costs are saved, powerful technique support is provided for the Efficient Development of China's petroleum resources.
Meanwhile hydraulic positioner also has length small, does not increase casing string rigidity, structure design is simple, and the process-cycle is short,
Dependable performance, it is easy to operate the features such as.
Brief description of the drawings
Fig. 1 is a kind of hydraulic positioner external structure schematic diagram of the present utility model.
Fig. 2 is the Section A-A schematic diagram in Fig. 1.
Fig. 3 is a kind of hydraulic positioner support frame assembly structure schematic diagram of the present utility model.
In figure：1- matrixes, 2- pedestals, 3- bayonet locks, 4- sealing devices, 5- support frames assembly, 6- support blocks, 7- pressure transmission holes.
Embodiment
It is described in detail the utility model below in conjunction with the accompanying drawings.
1, Fig. 2 and Fig. 3 referring to the drawings, hydraulic positioner is mainly by matrix 1, pedestal 2, bayonet lock 3, sealing device 4, support frame
Assembly 5, support block 6, pressure transmission hole 7 form.Matrix 1 and sleeve pipe connection, pedestal 2 are arranged on matrix 1, pedestal 2, support frame assembly
Bayonet lock 3 is respectively mounted on 5, sealing device 4 is installed between support frame assembly 5 and support block, pacified between support frame assembly 5 and pedestal 2
Sealing device 4 is filled, processes radial direction pressure transmission hole 7 on matrix 1, support frame assembly 5 is formed by multistage support frame nesting, and support block 6 is pacified
In the afterbody support frame of support frame assembly 5.
Hydraulic positioner is connected between two sleeve pipes, during being gone into the well with casing string, due to hydraulic pressure in casing string
Power is small, and support frame assembly can not stretch out with support block, and now hydraulic positioner external diameter is in minimum state, helps to reduce sleeve pipe
The frictional resistance of post tripping in, strengthen the security of casing string tripping in；When under casing string to design well depth, start gradually increase set
Hydraulic coupling in pipe, hydraulic coupling are acted on by pressure transmission hole on the bottom surface of support frame assembly and support block, when hydraulic coupling is increased to
During setup parameter, support frames at different levels, the support BOB(beginning of block) of support frame assembly move radially, and the external diameter of hydraulic positioner progressively expands
Greatly, pedestal, be respectively mounted unidirectional bayonet lock on support frame assembly, its function is to make support frames at different levels can only be towards borehole wall direction with support block
It is mobile, when support frames at different levels and support block are after one group of bayonet lock, that is, it is locked out and can not retracts, ensure that hydraulic pressure positions
The steadiness of device.When support frames at different levels and support block are all moved to peak, the external diameter of hydraulic positioner expands to maximum simultaneously
It is close to the borehole wall, while casing string is lifted, casing string can be also fixed on to well center, effectively prevent the shifting of casing string
It is dynamic.Subsurface environment very severe, well section are not the circles of rule, and multigroup unidirectional card is provided with pedestal, support frame assembly
Pin, therefore can adapt to the change of wellbore shape, i.e., support frame assembly and support block only need to stretch out and be close to the borehole wall, need not
It is fully extended, ensure that casing string is located at well center in real time.Hydraulic positioner can install 3-4 support frame assembly, both
The centralizer of casing string is able to ensure that, and can reduces the influence to annular space area of passage, improves cement mortar to greatest extent
Flow velocity, and then improve cementing quality.
Claims (5)
1. hydraulic positioner, mainly by pedestal（2）, bayonet lock（3）, support frame assembly（5）, support block（6）Composition；It is characterized in that：
The pedestal（2）, support frame assembly（5）In garden tubular structure, its inwall is equipped with the mounting groove of T-shaped or swallow-tail form vertically,
Bayonet lock（3）Inner surface is cone structure, multiple bayonet locks（3）It is each defined in elastic support in corresponding mounting groove；Branch
Support assembly（5）And pedestal（2）Matched somebody with somebody from inside to outside by forming sealing grafting vertically after respective upper and lower spacing convex edge nesting
Close mechanism, support block（6）In garden column structure, support block（6）It is nested in support frame assembly（5）It is interior, and with support assembly（5）
Form sealing grafting matching mechanism；Support frame assembly（5）And support block（6）During axially extending with corresponding bayonet lock
（3）Top end face forms spacing cooperation.
2. hydraulic positioner according to claim 1, it is characterized in that：Support frame assembly（5）It is multistage support frame by introversion
Pass sequentially through outside it is respective form sealing grafting matching mechanism step by step after spacing convex edge nesting up and down, every grade of support frame inwall is along axle
To the mounting groove for being equipped with T-shaped or swallow-tail form, and bayonet lock is installed in each mounting groove（3）And resilient support, support block（6）Peace
Mounted in support frame assembly（5）Most interior one level of support frame in.
3. hydraulic positioner according to claim 1 or 2, it is characterized in that：Described pedestal（2）For 3-5, and it is uniform
Sealing is fixed on cylindrical base body（1）Outside groove in, groove is provided with and pedestal（2）The pressure transmission hole of inner chamber insertion（7）.
4. hydraulic positioner according to claim 3, it is characterized in that：Support block（6）Inlay friction-proof piece in outer surface.
5. hydraulic positioner according to claim 4, it is characterized in that：Support frame assembly（5）In multistage support frame between,
Support frame assembly（5）With support block（6）Between, support frame assembly（5）With pedestal（2）Between sealing device is installed respectively（4）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720685429.8U CN207048694U (en) | 2017-06-14 | 2017-06-14 | Hydraulic positioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720685429.8U CN207048694U (en) | 2017-06-14 | 2017-06-14 | Hydraulic positioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207048694U true CN207048694U (en) | 2018-02-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720685429.8U Active CN207048694U (en) | 2017-06-14 | 2017-06-14 | Hydraulic positioner |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107178320A (en) * | 2017-06-14 | 2017-09-19 | 中石化石油工程技术服务有限公司 | Hydraulic positioner |
-
2017
- 2017-06-14 CN CN201720685429.8U patent/CN207048694U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107178320A (en) * | 2017-06-14 | 2017-09-19 | 中石化石油工程技术服务有限公司 | Hydraulic positioner |
| CN107178320B (en) * | 2017-06-14 | 2023-09-08 | 中石化石油工程技术服务有限公司 | Hydraulic positioner |
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