CN109555484A - One kind wearing cable hydroscillator - Google Patents
One kind wearing cable hydroscillator Download PDFInfo
- Publication number
- CN109555484A CN109555484A CN201910053243.4A CN201910053243A CN109555484A CN 109555484 A CN109555484 A CN 109555484A CN 201910053243 A CN201910053243 A CN 201910053243A CN 109555484 A CN109555484 A CN 109555484A
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- China
- Prior art keywords
- piston
- joint
- lower joint
- cable
- hydraulic oscillator
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/24—Drilling using vibrating or oscillating means, e.g. out-of-balance masses
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B12/00—Accessories for drilling tools
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Actuator (AREA)
Abstract
本发明公开了一种穿电缆水力振荡器，包括上接头，活塞，压缩弹簧，外套，下接头，第一密封组件和第二密封组件，上接头与下接头通过外套连接，外套设在上接头与下接头的外部，活塞设在外套的内部，外套、活塞与下接头之间围合形成有环形空腔，压缩弹簧设在环形空腔中，第一密封组件设在上接头与外套之间，第二密封组件设在外套与下接头之间，活塞与上接头之间形成有密封腔，活塞的上端设有孔眼，孔眼与密封腔相通，活塞与下接头可在压差的作用下在穿电缆水力振荡器内部作上下往复运动。有益效果：整个水力振荡器的密封性能好，灵活振动，矩形限位的连接方式，使得往复运动的连续性好。
The invention discloses a cable-passing hydraulic oscillator, comprising an upper joint, a piston, a compression spring, a jacket, a lower joint, a first sealing component and a second sealing component. The upper joint and the lower joint are connected through the jacket, and the jacket is arranged on the upper joint Outside the lower joint, the piston is arranged inside the outer casing, an annular cavity is formed between the outer casing, the piston and the lower joint, the compression spring is arranged in the annular cavity, and the first sealing component is arranged between the upper joint and the outer casing , the second sealing component is arranged between the outer casing and the lower joint, a sealing cavity is formed between the piston and the upper joint, the upper end of the piston is provided with a hole, the hole is communicated with the sealing cavity, and the piston and the lower joint can be under the action of the pressure difference. The inside of the cable-wearing hydraulic oscillator is reciprocating up and down. Beneficial effects: the whole hydraulic oscillator has good sealing performance, flexible vibration, and the connection mode of rectangular limit, which makes the continuity of the reciprocating motion good.
Description
Technical field
The present invention relates to petroleum, coal gas to drill production technique field, and in particular to one kind wears cable hydroscillator.
Background technique
In recent years in petroleum, coal gas field, drilling tool meeting in drilling well more unified for drilling tool used in drilling well, conventional
It generates biggish frictional force, increases drilling well difficulty, cause at high cost, the problems such as difficulty is big, low efficiency.The country is in oil gas at present
Vibratory tool structure used in industry is complex, and is not useable for coal gas probing industry.
It is urgently a kind of thus to can effectively solve the above problem occurred in drilling process, and can be used for coal gas probing industry
Equipment.
Summary of the invention
The purpose of the present invention overcomes the deficiencies of the prior art and provide one kind and wears cable hydroscillator, the hydroscillator
By forming pressure difference under sealed environment, realization can be repeatedly of reciprocating vibration, (i.e. in wireline operation, guarantees cable in piston
The heart relatively moves in hole), and by the connection of the rectangle limit method between housing and lower contact, there is high-intensitive antitorque work
With, it is therefore prevented that the relative rotation of lower contact.
The purpose of the present invention is what is reached by following technical measures: one kind wearing cable hydroscillator, including top connection,
Piston, compressed spring, housing, lower contact, the first seal assembly and the second seal assembly, the top connection and lower contact pass through outer
Set connection, the outer outside for being set in top connection and lower contact, piston are located at the inside of housing, and the upper end of piston is located at described
Between top connection and lower contact, the lower end of piston is located under the inner surface of lower contact, and is connect with lower contact, the housing, work
It is enclosed toroidal cavity between plug and lower contact, compressed spring is located in the toroidal cavity, and the first seal assembly is located at
Between top connection and housing, the second seal assembly is located between housing and lower contact, is formed between the piston and top connection
The upper end of seal chamber, piston is equipped with eyelet, and eyelet is communicated with seal chamber, and piston and lower contact can wear electricity under the action of pressure difference
It pumps inside cable hydroscillator.
Further, through-hole is offered in the lower contact, the through-hole is communicated with toroidal cavity.
Further, when the piston and lower contact move downward, the eyelet can be connected with toroidal cavity.
Further, the upper end end face of the piston is in contact with the lower end surface of top connection.
Further, the housing is connect by rectangle limit method with lower contact.
Further, the inner surface of housing is set as rectangle by the rectangle limit method, and the outer surface of lower contact is also set as
Rectangle, lower contact are set in the rectangular enclosure of housing.
Further, the compressed spring is set on the round bar of lower contact.
Further, the housing is threadedly coupled with top connection.
Further, the piston is threadedly coupled with lower contact.
Further, the eyelet on the piston is multiple, and multiple eyelets are evenly distributed on piston.
Compared with prior art, the beneficial effects of the present invention are: between 1. top connections and housing, between lower contact and housing
It is equipped with seal assembly, greatly improves the sealing performance of entire hydroscillator.2. in a sealed meter environment, through piston under
Up and down reciprocatingly vibration of the connector under differential pressure action, realizes cable and flexibly relatively moves.3. housing passes through rectangle limit side
The connection of formula and lower contact effectively prevents relative rotation of the lower contact in moving process, ensure that lower contact moves back and forth
Continuity.
It elaborates with reference to the accompanying drawings and detailed description to the present invention.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for wearing cable hydroscillator.
Fig. 2 is the structural schematic diagram of piston.
Fig. 3 is the structural schematic diagram for wearing cable hydroscillator A-A cross-section structure embodiment 1.
Fig. 4 is the structural schematic diagram for wearing cable hydroscillator A-A cross-section structure embodiment 2.
Fig. 5 is the structural schematic diagram for wearing cable hydroscillator A-A cross-section structure embodiment 3.
Wherein, 1. top connection, 2. pistons, 3. compressed springs, 4. housings, 5. lower contacts, 6. first seal assemblies, 7. second
Seal assembly, 8. eyelets, 9. through-holes.
Specific embodiment
Embodiment, as shown in Fig. 1 to 2, one kind wearing cable hydroscillator, can be used for exploiting in terms of oil gas, coal gas two.Packet
Include top connection 1, piston 2, compressed spring 3, housing 4, lower contact 5, the first seal assembly 6 and the second seal assembly 7, it is described on connect
First 1 is connect with lower contact 5 by housing 4, specifically, the housing 4 is threadedly coupled with top connection 1.The housing 4, which is located at, to be connect
First 1 is located at the inside of housing 4 with the outside of lower contact 5, piston 2, the upper end of piston 2 be located at the top connection 1 and lower contact 5 it
Between, the lower end of piston 2 is located under the inner surface of lower contact 5, and is connect with lower contact 5, and the piston 2 connects with 5 screw thread of lower contact
It connects.Toroidal cavity is enclosed between the housing 4, piston 2 and lower contact 5, compressed spring 3 is located at the toroidal cavity
In, specifically, the compressed spring 3 is set on the round bar of lower contact 5.First seal assembly 6 is located at top connection 1 and housing 4
Between, the second seal assembly 7 is located between housing 4 and lower contact 5, it is formed with seal chamber between the piston 2 and top connection 1,
The upper end of piston 2 is equipped with eyelet 8, the eyelet 8 on the piston 2 be it is multiple, multiple eyelets 8 are uniformly distributed on the piston 2, eyelet
8 communicate with seal chamber, and piston 2 and lower contact 5 can be made up and down reciprocatingly inside cable hydroscillator under the action of pressure difference wearing
Movement.The eyelet 8 of piston 2 ensure that the normal operation of tool by the variation of pressure drop.
Through-hole 9 is offered in the lower contact 5, the through-hole 9 is communicated with toroidal cavity.
When the piston 2 is moved downward with lower contact 5, the eyelet 8 can be connected with toroidal cavity.
The upper end end face of the piston 2 is in contact with the lower end surface of top connection 1.The lower end surface of top connection 1 can be right
The uplink of piston 2 limits.
As shown in Fig. 3 to 5, the housing 4 is connect by rectangle limit method with lower contact 5.The rectangle limit method,
The inner surface of housing 4 is set as rectangle, the outer surface of lower contact 5 is also set as rectangle, and the rectangle that lower contact 5 is set in housing 4 is empty
In chamber.The rectangle can be square, regular pentagon, regular hexagon etc., and the connection type of this rectangle limit ensure that down
Connector 5 can only pump in the axial direction of housing 4, avoid lower contact 5 and housing 4 and turn in the opposite of circumferencial direction
It is dynamic, there is high-intensitive antitorque effect.
Working condition: suppressing liquid inside to hydroscillator, liquid enters seal chamber, the eyelet 8 on piston 2, is formed
Pressure difference, compressed spring 3 are compressed, and piston 2 and lower contact 5 under pressure, move downwardly together, when the eyelet 8 on piston 2
When being exposed in toroidal cavity, since through-hole is connected to toroidal cavity in lower contact 5, pressure moment reduces, and compressed spring 3 is flexible
It resets, 5 uplink of piston 2 and lower contact is restored to origin-location, so repeats this operation, that is, can produce effect of vibration.Work as cable
When passing through from hydroscillator inside center, the relative movement of cable is limited, being normally carried out for wireline operation is worn in guarantee.
In present specification, it is related to indicating that the word of direction instruction such as " upper end " is indicated close to one end of top connection 1, such as
" lower end " is indicated close to one end of lower contact 5.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910053243.4A CN109555484A (en) | 2019-01-21 | 2019-01-21 | One kind wearing cable hydroscillator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910053243.4A CN109555484A (en) | 2019-01-21 | 2019-01-21 | One kind wearing cable hydroscillator |
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| CN109555484A true CN109555484A (en) | 2019-04-02 |
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| CN201910053243.4A Pending CN109555484A (en) | 2019-01-21 | 2019-01-21 | One kind wearing cable hydroscillator |
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