CN205689151U - Underground hydraulic propulsion plant - Google Patents
Underground hydraulic propulsion plant Download PDFInfo
- Publication number
- CN205689151U CN205689151U CN201620613756.8U CN201620613756U CN205689151U CN 205689151 U CN205689151 U CN 205689151U CN 201620613756 U CN201620613756 U CN 201620613756U CN 205689151 U CN205689151 U CN 205689151U
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- Prior art keywords
- hole
- liquid pass
- road
- pass hole
- propulsion plant
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- 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- Withdrawn - After Issue
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Abstract
The utility model discloses a kind of underground hydraulic propulsion plant and include that device body, device body center offer axially extending bore, outer wall local crowning is formed with an annular boss；Along the circumferential direction offer in annular boss upper surface on the downside of a plurality of oblique through hole and form, with through hole, the first liquid pass hole road connected；Along the circumferential direction offer in annular boss lower surface a plurality of with the first liquid pass hole road one_to_one corresponding and with form the second liquid pass hole road connect at the large diameter in the first liquid pass hole road, the second liquid pass hole road is axially in parallel with through hole and formation communicating position is at the reducing in the first liquid pass hole road；Through hole upper inner diameter is more than lower inner diameter, is arranging and be fixed with, on the inwall of via bottoms, the gear flowed out for liquid barrier from through hole bottom；This this underground hydraulic propulsion plant simple in construction, easy for installation, it is not necessary to additionally to increase ground installation, by hydraulic pressure increase coiled tubing depth of setting, environmental protection, with low cost.
Description
Technical field
This utility model relates to the downhole tool technical field of oil-gas field development application, tries hard to recommend particularly to a kind of underground liquid
Enter device.
Background technology
Coiled tubing drifting, perforation, well logging are a kind of flow charts that underground work is commonly used, by domestic and international petroleum industry
Extensively application.Owing to coiled tubing belongs to flexible pipe, when using in horizontal well, interior by with the borehole wall between the shadow of frictional force
Ring, often occur that spiral self-locking phenomenon cannot be lowered into shaft bottom.Downhole tool deep under existing increase, generally uses vibration
Device, its structure is complicated, and price is high and service life is comparatively short, and agitator can only reduce frictional force, it is impossible to provide thrust, for
The hole deviation horizontal well more than 90 °, increases the degree of depth limited.
Utility model content
The purpose of this utility model is to provide one be applicable to the operations such as horizontal well drifting, perforation, well logging, specifically even
During entering under continuous oil pipe, it is possible to increase coiled tubing depth of setting by current, to improve the efficiency such as drifting, perforation, well logging
Underground hydraulic propulsion plant.
To this end, technical solutions of the utility model are as follows:
A kind of underground hydraulic propulsion plant, including device body, specifically:
Device body center offers axially extending bore, outer wall local crowning is formed with an annular boss；
Along the circumferential direction offer on the downside of a plurality of oblique through hole and formed with through hole the connected in annular boss upper surface
One liquid pass hole road, and the first liquid pass hole road upper inner diameter is more than lower inner diameter；
Along the circumferential direction offer in annular boss lower surface a plurality of with the first liquid pass hole road one_to_one corresponding and with the first mistake
Forming the second liquid pass hole road of connection at the large diameter in fluid apertures road, the second liquid pass hole road is axially in parallel with through hole and formation connects position
Rest against at the reducing in nearly first liquid pass hole road；
Through hole upper inner diameter is more than lower inner diameter, is arranging and is being fixed with for intercepting liquid on the inwall of via bottoms
The baffle plate that body flows out from through hole bottom.
Further, the arrogant inner radius of through hole to little inner radius by through-hole wall to contract formation tapering transition and
Become.Wherein, through hole be designed as up big and down small and middle by tapering transition section at large diameter and little inner radius carries out transition
The reducing connected, makes the fluid entered from through hole top enter after inner chamber, fluid slamming down propeller at reducing, increase to
Under power；Meanwhile, nozzle, deceleration tube and inlet opening is also made not to flow upwards out space.
Further, the sidewall of annular boss is along the circumferential direction processed as the choked flow zone with multiple rows of broached-tooth design；
Between adjacent saw-tooth, spacing is 5～30mm, each sawtooth a length of 10～15mm.
Further, the bar number in the first liquid pass hole road is 2～8, the most uniformly divides in annular boss upper surface
Cloth.
Further, the upper inner diameter in the first liquid pass hole road be 3～12mm, lower inner diameter be 1～6mm；Second liquid pass hole
The internal diameter in road is 6～20mm；Between first liquid pass hole road and the second liquid pass hole road, angle is 30～50 °；The internal diameter of through hole is more than
First liquid pass hole road, the internal diameter in the second liquid pass hole road.
Further, the serration tips distance sleeve inwall 0.5～8mm of choked flow zone.
Further, the through hole top of device body and bottom inwall are equipped with connection female thread, for respectively with even
Connect oil pipe/drilling rod and drift size gauge tool, perforating gun etc..
Compared with prior art, this underground hydraulic propulsion plant simple in construction, easy for installation, it is not necessary to additionally to increase ground
Equipment, by hydraulic pressure increase coiled tubing depth of setting, environmental protection, with low cost.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of underground hydraulic propulsion plant of the present utility model；
Fig. 2 is the plan structure schematic diagram of underground hydraulic propulsion plant of the present utility model；
Fig. 3 is the operation principle schematic diagram of underground hydraulic propulsion plant of the present utility model.
Detailed description of the invention
Below in conjunction with the accompanying drawings and this utility model is described further by specific embodiment, but following embodiment is the most right
This utility model has any restriction.
As shown in Fig. 1～2, this underground hydraulic propulsion plant, including device body 2；Device body 2 center offers axially
Through hole 8, outer wall local crowning are formed with an annular boss；Specifically:
Annular boss upper surface the most uniformly offers on the downside of 2～8 oblique through holes 8, and with through hole 8 shape
Become the first liquid pass hole road of connection；First liquid pass hole road includes the deceleration duct 3 on top and the hydrojet duct 4 of bottom, deceleration hole
The internal diameter in road 3, more than the internal diameter in hydrojet duct 4, is formed with a ring-shaped step in the two connectivity part；The internal diameter in deceleration duct 3 is 3
～12mm, the internal diameter in hydrojet duct 4 is 1～6mm；
Annular boss lower surface along the circumferential direction offers a plurality of and the first liquid pass hole road one_to_one corresponding and with first
The deceleration duct 3 in liquid pass hole road forms the second liquid pass hole road 5 of connection；A plurality of second liquid pass hole road 5 is all axially put down with through hole 8
OK, and form the connectivity part being located proximate to deceleration duct 3 and hydrojet duct 4 of connection；The internal diameter in the second liquid pass hole road 5 be 6～
20mm；Between first liquid pass hole road and the second liquid pass hole road, angle is 30～50 °；
Through hole 8 internal diameter is reducing, and its upper inner diameter is more than lower inner diameter, and middle part the most gradually convexes to form one by inwall
Tapering transition section makes to be formed between upper inner diameter and lower inner diameter transition；Inwall bottom through hole 8 is arranged and fixes
There is the baffle plate 6 flowed out for liquid barrier from through hole 8 bottom；Upper inner diameter is 30～50mm, and lower inner diameter is 20～30mm；
The sidewall of annular boss is along the circumferential direction processed as the choked flow zone 9 with multiple rows of broached-tooth design；Adjacent saw-tooth
Between spacing be 5～30mm, each sawtooth a length of 10～15mm；Serration tips distance sleeve 10 inwall 0.5 of choked flow zone 9～
8mm；
Integrally formed top connection 1 and lower contact 7 is also included, in top connection on through hole 8 top of device body 2 and bottom
1 and lower contact 7 inwall on be equipped with connection female thread；Top connection 1 is for connected pipes or drilling rod, and lower contact 7 is for even
Connect the downhole tool such as drift size gauge tool, perforating gun.
The down-hole propelling operation principle of this underground hydraulic propulsion plant:
As it is shown on figure 3, after this underground hydraulic propulsion plant enters well with coiled tubing, down-hole liquid (i.e. drilling fluid) is by logical
Top, hole 8 flows into this underground hydraulic propulsion plant inner chamber, and due to bottom baffle effect, the liquid entering inner chamber can pass through the first mistake
Fluid apertures road flows out, at liquid accumulation region I；And the liquid at rear region I is by the gap between choked flow zone and sleeve pipe 10 inwall
Inflow region (II) place；In above-mentioned whole flow process, created many groups by fluid matasomatism altogether and this device is pushed down on
Power, specifically:
Through hole 8 is designed as up big and down small variable-diameter structure, and in the middle part of it, inwall gradually forms tapering transition section to contract, when
When liquid enters through hole 8 from top to bottom with certain speed, high-speed liquid is this device of slamming down at reducing, adds downward
Power；
The intrinsic baffle plate flowed out from through hole 8 bottom for liquid barrier on inwall on the downside of through hole 8, thus when liquid is with one
When constant speed degree enters through hole 8 from top to bottom, baffle effect allows liquid change flow direction, and device is formed downward by liquid simultaneously
Impact force；
First oblique lower section, liquid pass hole road is formed with through hole 8 and connects, and the liquid entered above through hole 8 can pass through hydrojet
Duct 4 high speed jet is in deceleration duct 3；According to Bernoulli equation, rate of flow of fluid height then static pressure is low, the low then static pressure of flow velocity
Height, therefore, fluid enters flow velocity time in deceleration duct 3 to be reduced, and static pressure raises, and when fluid has just left hydrojet duct 4, flow velocity
Not yet changing, now, deceleration duct 3 is several with the static pressure in hydrojet duct with the static pressure of the junction in hydrojet duct 4
Equal, thus connecting portion in hydrojet duct 4 and deceleration duct 3 form that negative pressure, i.e. fluid enter in deceleration duct 3 quiet
There is difference between static pressure force value when force value and fluid have just departed from hydrojet duct 4 and form negative pressure, in the second liquid pass hole road 5
Liquid under suction function, by quickly " suction " deceleration duct 3, and enter in the I of region；Meanwhile, when liquid is from deceleration
When duct 3 exits into region I, liquid forms downward reaction force to device body 2；
Second liquid pass hole road 5 connects with deceleration duct 3, below device body 2 liquid entered by the second liquid pass hole road 5
Enter in deceleration duct 3, and when being flowed into region I by deceleration duct 3 together, owing to the liquid of region II tails off, region I and
Also pressure reduction is formed, although the liquid of region I is along the gap leakage between choked flow zone 9 and sleeve pipe 10 inwall to district between the II of region
In the II of territory, but owing to choked flow zone 9 produces certain resistance, the pressure reduction formed between region I to region II is directly proportional to this resistance,
Thus the hydraulic pressure that the hydraulic pressure of region I is much larger than region II, the pressure reduction formed therebetween also forms downward thrust to this device,
The degree of depth entered under this device is made to increase.
The thrust produced this underground hydraulic propulsion plant below by way of specific embodiment is further described:
Embodiment 1
A kind of underground hydraulic propulsion plant, including device body 2；Device body 2 center offers axially extending bore 8, axially
Through hole 8 upper inner diameter is 45mm, and lower inner diameter is 35mm；Device body 2 outer wall local crowning is formed with an annular boss, at ring
The most uniformly offer on the downside of eight oblique through holes 8 on shape boss upper surface and form, with through hole 8, the first mistake connected
Fluid apertures road；First liquid pass hole road includes the deceleration duct 3 that internal diameter is 3mm on top and the hydrojet duct that internal diameter is 2mm of bottom
4；Annular boss lower surface offers the most equally eight with the first liquid pass hole road one_to_one corresponding and with the first mistake
The deceleration duct 3 in fluid apertures road forms the second liquid pass hole road 5 of connection；Article eight, the second liquid pass hole road 5 is all axially in parallel with through hole 8,
And form the connectivity part being located proximate to deceleration duct 3 and hydrojet duct 4 of connection；The internal diameter in the second liquid pass hole road 5 is 8mm；The
Between one liquid pass hole road and the second liquid pass hole road, angle is 45 °；Inwall bottom the through hole 8 arranges and is fixed with for
The baffle plate 6 that liquid barrier flows out from through hole 8 bottom；The sidewall of annular boss is along the circumferential direction processed as have multiple rows of sawtooth
The choked flow zone 9 of structure；Between adjacent saw-tooth, spacing is 10mm, a length of 10mm of each sawtooth；The serration tips distance of choked flow zone 9
Sleeve pipe 10 inwall 3mm.
This underground hydraulic propulsion plant is connected to coiled tubing bottom, by injecting liquid, liquid stream in coiled tubing
The dynamic thrust making hydraulic thruster produce 3.4KN.
Embodiment 2
A kind of underground hydraulic propulsion plant, including device body 2；Device body 2 center offers axially extending bore 8, axially
Through hole 8 upper inner diameter is 50mm, and lower inner diameter is 38mm；Device body 2 outer wall local crowning is formed with an annular boss, at ring
The most uniformly offer on the downside of six oblique through holes 8 on shape boss upper surface and form, with through hole 8, the first mistake connected
Fluid apertures road；First liquid pass hole road includes the deceleration duct 3 that internal diameter is 5mm on top and the hydrojet duct that internal diameter is 3mm of bottom
4；Annular boss lower surface offers the most equally six with the first liquid pass hole road one_to_one corresponding and with the first mistake
The deceleration duct 3 in fluid apertures road forms the second liquid pass hole road 5 of connection；Article eight, the second liquid pass hole road 5 is all axially in parallel with through hole 8,
And form the connectivity part being located proximate to deceleration duct 3 and hydrojet duct 4 of connection；The internal diameter in the second liquid pass hole road 5 is 10mm；The
Between one liquid pass hole road and the second liquid pass hole road, angle is 45 °；Inwall bottom the through hole 8 arranges and is fixed with for
The baffle plate 6 that liquid barrier flows out from through hole 8 bottom；The sidewall of annular boss is along the circumferential direction processed as have multiple rows of sawtooth
The choked flow zone 9 of structure；Between adjacent saw-tooth, spacing is 10mm, a length of 12mm of each sawtooth；The serration tips distance of choked flow zone 9
Sleeve pipe 10 inwall 2.5mm.
This underground hydraulic propulsion plant is connected to coiled tubing bottom, by injecting liquid, liquid stream in coiled tubing
The dynamic thrust making hydraulic thruster produce 4.2KN.
Embodiment 3
A kind of underground hydraulic propulsion plant, including device body 2；Device body 2 center offers axially extending bore 8, axially
Through hole 8 upper inner diameter is 50mm, and lower inner diameter is 38mm；Device body 2 outer wall local crowning is formed with an annular boss, at ring
The most uniformly offer on the downside of four oblique through holes 8 on shape boss upper surface and form, with through hole 8, the first mistake connected
Fluid apertures road；First liquid pass hole road includes the deceleration duct 3 that internal diameter is 8mm on top and the hydrojet duct that internal diameter is 5mm of bottom
4；Annular boss lower surface offers the most equally four with the first liquid pass hole road one_to_one corresponding and with the first mistake
The deceleration duct 3 in fluid apertures road forms the second liquid pass hole road 5 of connection；Article eight, the second liquid pass hole road 5 is all axially in parallel with through hole 8,
And form the connectivity part being located proximate to deceleration duct 3 and hydrojet duct 4 of connection；The internal diameter in the second liquid pass hole road 5 is 15mm；The
Between one liquid pass hole road and the second liquid pass hole road, angle is 40 °；Inwall bottom the through hole 8 arranges and is fixed with for
The baffle plate 6 that liquid barrier flows out from through hole 8 bottom；The sidewall of annular boss is along the circumferential direction processed as have multiple rows of sawtooth
The choked flow zone 9 of structure；Between adjacent saw-tooth, spacing is 8mm, a length of 6mm of each sawtooth；The serration tips distance set of choked flow zone 9
Pipe 10 inwall 2mm.
This underground hydraulic propulsion plant is connected to coiled tubing bottom, by injecting liquid, liquid stream in coiled tubing
The dynamic thrust making hydraulic thruster produce 5.2KN.
Underground hydraulic propulsion plant in above-described embodiment 1～3 is in carrying out thrust test, and the liquid of ground pumping enters
Angle of rake discharge capacity be maintained at 0.2～0.8 side/minute；Liquid flowing makes hydraulic thruster produce the thrust of 5.2KN by measuring
Second flow crossing liquid passage 5, and with this flow as foundation, simulation calculates the flow resistance of choked flow zone generation and is multiplied by angle of rake
Annular space cross-sectional area obtains.Additionally, this hydraulic thruster can be used in combination with existing hydroscillator, to improve oil continuously
The depth of implements of pipe.
In sum, this underground hydraulic propulsion plant is different from the hydraulic thruster of existing use, it is not necessary to additionally increase
Ground installation, by the design structure of self uniqueness, has the liquid of a fixed displacement, passes through fluid matasomatism in utilizing upper connecting tube road
Create the many groups of down thrust to this device altogether, the depth of setting of coiled tubing can be increased.
Claims (8)
1. a underground hydraulic propulsion plant, including device body (2), it is characterised in that device body (2) center offers axle
It is formed with an annular boss to through hole (8), outer wall local crowning；Along the circumferential direction offer in annular boss upper surface a plurality of tiltedly
On the downside of through hole (8) and with through hole (8), form the first liquid pass hole road connected, and the first liquid pass hole road upper inner diameter is more than bottom
Internal diameter；Along the circumferential direction offer in annular boss lower surface a plurality of with the first liquid pass hole road one_to_one corresponding and with the first liquid pass hole
Forming the second liquid pass hole road (5) of connection at the large diameter in road, the second liquid pass hole road (5) is axially in parallel with through hole (8) and is formed
Communicating position is at the reducing in the first liquid pass hole road；Through hole (8) upper inner diameter is more than lower inner diameter, near through hole (8) end
Arrange and be fixed with the baffle plate (6) flowed out from through hole (8) bottom for liquid barrier on the inwall in portion.
Underground hydraulic propulsion plant the most according to claim 1, it is characterised in that on the sidewall of annular boss circumferentially
Direction is processed as the choked flow zone (9) with multiple rows of broached-tooth design；Between adjacent saw-tooth, spacing is 5～30mm, each sawtooth length
It is 10～15mm.
Underground hydraulic propulsion plant the most according to claim 1, it is characterised in that the bar number in the first liquid pass hole road is 2～8
Bar, is distributed uniformly and circumferentially in annular boss upper surface.
Underground hydraulic propulsion plant the most according to claim 1, it is characterised in that the upper inner diameter in the first liquid pass hole road is
3～12mm, lower inner diameter is 1～6mm；The internal diameter in the second liquid pass hole road (5) is 6～20mm；The internal diameter of through hole (8) is more than first
Liquid pass hole road, the internal diameter in the second liquid pass hole road (5).
Underground hydraulic propulsion plant the most according to claim 1, it is characterised in that the first liquid pass hole road and the second liquid pass hole
Between road (5), angle is 30～50 °.
Underground hydraulic propulsion plant the most according to claim 2, it is characterised in that the serration tips distance of choked flow zone (9)
Sleeve pipe (10) inwall 0.5～8mm.
Underground hydraulic propulsion plant the most according to claim 2, it is characterised in that through hole (8) arrogant inner radius is to little interior
Form tapering transition by through hole (8) inwall to contract at footpath to form.
Underground hydraulic propulsion plant the most according to claim 2, it is characterised in that through hole (8) top of device body (2)
Be equipped with connection female thread on the inwall of bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620613756.8U CN205689151U (en) | 2016-06-16 | 2016-06-16 | Underground hydraulic propulsion plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620613756.8U CN205689151U (en) | 2016-06-16 | 2016-06-16 | Underground hydraulic propulsion plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205689151U true CN205689151U (en) | 2016-11-16 |
Family
ID=57415392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620613756.8U Withdrawn - After Issue CN205689151U (en) | 2016-06-16 | 2016-06-16 | Underground hydraulic propulsion plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205689151U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105909199A (en) * | 2016-06-16 | 2016-08-31 | 中国石油集团渤海钻探工程有限公司 | Downhole hydraulic propelling device |
| CN115324550A (en) * | 2022-08-09 | 2022-11-11 | 中国石油天然气集团有限公司 | Hydraulic coiled tubing dragging fracturing tool and technological method |
-
2016
- 2016-06-16 CN CN201620613756.8U patent/CN205689151U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105909199A (en) * | 2016-06-16 | 2016-08-31 | 中国石油集团渤海钻探工程有限公司 | Downhole hydraulic propelling device |
| CN105909199B (en) * | 2016-06-16 | 2019-03-19 | 中国石油集团渤海钻探工程有限公司 | Underground hydraulic propulsion device |
| CN115324550A (en) * | 2022-08-09 | 2022-11-11 | 中国石油天然气集团有限公司 | Hydraulic coiled tubing dragging fracturing tool and technological method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161116 Effective date of abandoning: 20190319 |
|
| AV01 | Patent right actively abandoned |