CN109578270A - All-metal bridge type screw pump - Google Patents
All-metal bridge type screw pump Download PDFInfo
- Publication number
- CN109578270A CN109578270A CN201811479082.7A CN201811479082A CN109578270A CN 109578270 A CN109578270 A CN 109578270A CN 201811479082 A CN201811479082 A CN 201811479082A CN 109578270 A CN109578270 A CN 109578270A
- Authority
- CN
- China
- Prior art keywords
- metal
- outer tube
- metal stator
- gap bridge
- limiter
- 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.)
- Granted
Links
- 239000002184 metal Substances 0.000 title claims abstract description 67
- 238000003780 insertion Methods 0.000 claims description 10
- 230000037431 insertion Effects 0.000 claims description 10
- 239000003129 oil well Substances 0.000 abstract description 19
- 238000012360 testing method Methods 0.000 abstract description 15
- 230000005484 gravity Effects 0.000 abstract description 5
- 238000005299 abrasion Methods 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000000806 elastomer Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000008961 swelling Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
- F04C2/107—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C13/00—Adaptations of machines or pumps for special use, e.g. for extremely high pressures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
Abstract
The present invention relates to a kind of all-metal bridge type screw pumps, including top connection, gap bridge outer tube, metallic rotator, metal stator centering ring, metal stator, lower contact, limiter；Gap bridge outer tube of the invention bears the gravity that lower tail pipe generates, and metal stator centering ring makes gap bridge outer tube and metal stator be in coaxial position always, prevents metal stator from stretcher strain occur and is even broken, avoids holddown；Furthermore, hollow type limiter can enable the devices such as perforating gun, cable depth correction instrument device pass through, thus substantially increase operating efficiency without all proposing oil pipe, the pump housing and lower tail pipe from oil well before carrying out the oil test operations such as oil well perforation, test, it is time saving and energy saving, save operating cost.
Description
Technical field
The present invention relates to a kind of all-metal bridge type screw pumps.
Background technique
As the large area of oil pumping in oil fields is exploited, all-metal screw formula oil well pump starts gradually to obtain batch application；Quan Jin
Belong to screw type oil-well and although solve elastomer stator screw pump intolerant to abrasion, not heatproof, service life is low, and easily swelling etc. is asked
Topic meets the requirement of oil-field thick-oil exploitation, but since all-metal screw formula oil well pump is welded using combined stator
Connect, thin-walled outer tube and locating pin type limiter structure, when all-metal screw formula oil well pump lower end hang with heavy duty descend tail pipe compared with
When long (pump lower end connects more than 1000 meters of lower tail pipes), metal stator is easy even disconnected by gravity stretcher strain in use
It splits, leads to holddown；And passed through inside locating pin type limiter without devices such as decree perforating gun, cable depth correction instrument devices, thus
Oil pipe, the pump housing and lower tail pipe must all be proposed from oil well before carrying out the oil test operations such as oil well perforation, test, it is time-consuming to take
Power, shut-down also result in additional operating cost, need further improvement.
Summary of the invention
In view of the above-mentioned state of the art, technical problem to be solved by the present invention lies in provide one kind to prevent metal fixed
There is stretcher strain and is even broken in son, and avoids holddown；And substantially increase the oil test operations such as lower perforating gun and downhole testing
Efficiency, it is time saving and energy saving, save the all-metal bridge type screw pump of operating cost.
The technical scheme of the invention to solve the technical problem is: a kind of all-metal bridge type screw pump, including
Top connection, gap bridge outer tube, metallic rotator, metal stator centering ring, metal stator, lower contact, limiter, which is characterized in that institute
One end insertion for stating limiter is screwed onto inside one end of lower contact, and one end insertion of the metal stator is screwed onto lower contact
Inside the other end, the other end of the metal stator is inserted in inside one end of gap bridge outer tube, one end of the gap bridge outer tube
Insertion is screwed onto inside the other end of lower contact, is arranged on the outside of the other end of the metal stator and is bolted with metal stator righting
One end insertion of ring, the top connection is screwed onto inside the other end of gap bridge outer tube；The interspersed connection in the inside of the metal stator
There is rotatable metallic rotator, the other end of the metallic rotator is located at the inside of gap bridge outer tube.
Preferably, the metal stator centering ring is located at the inside of gap bridge outer tube and mutually pastes with the inner wall of gap bridge outer tube
It closes.
Preferably, the inside of the metal stator offers bellows chamber.
Preferably, one end center of the limiter offers the first counterbore, and the other end center of the limiter opens up
There is the second counterbore, the bottom center of second counterbore offers taper hole, the bottom of the bottom center of the taper hole and the first counterbore
Face offers through-hole between center.
Preferably, the screw rod end of the metallic rotator passes through bellows chamber and extend into the first counterbore.
Compared with the prior art, the advantages of the present invention are as follows: the present invention is provided with gap bridge outer tube and metal stator centering ring,
Gap bridge outer tube bears the gravity that lower tail pipe generates, and metal stator centering ring makes gap bridge outer tube be in same always with metal stator
Shaft position prevents metal stator from stretcher strain occur and is even broken, avoids holddown；In addition, the present invention is also provided with hollow type
Limiter can enable the devices such as perforating gun, cable depth correction instrument device pass through, thus before carrying out the oil test operations such as oil well perforation, test
Without all proposing oil pipe, the pump housing and lower tail pipe from oil well, operating efficiency is substantially increased, time saving and energy saving, saving operation
Expense.
Detailed description of the invention
Fig. 1 is sectional structure chart of the invention.
Specific embodiment
As shown in Figure 1, a kind of all-metal bridge type screw pump, including top connection 1, gap bridge outer tube 2, metallic rotator 3, metal
Stator centering ring 4, metal stator 5, lower contact 6, limiter 7；One end insertion of limiter 7 is screwed onto one end of lower contact 6
One end insertion in portion, metal stator 5 is screwed onto inside the other end of lower contact 6, and it is outer that the other end of metal stator 5 is inserted in gap bridge
Inside one end of pipe 2, one end of gap bridge outer tube 2 is also inserted into inside the other end for being screwed onto lower contact 6, metal stator 5 it is another
End outside is arranged and is bolted with metal stator centering ring 4, metal stator centering ring 4 be located at the inside of gap bridge outer tube 2 and with pass a bridge outside
The inner wall of pipe 2 is bonded to each other；One end insertion of top connection 1 is screwed onto inside the other end of gap bridge outer tube 2；Metal stator 5 it is interior
Portion is interspersed to be connected with rotatable metallic rotator 3, and the other end of metallic rotator 3 is located at the inside of gap bridge outer tube 2；Metal stator 5
Inside offer bellows chamber 51, one end center of limiter 7 offers the first counterbore 71, and the other end center of limiter 7 is opened
Equipped with the second counterbore 73, the bottom center of the second counterbore 73 offers taper hole 74, the bottom center of taper hole 74 and the first counterbore 71
Bottom center between offer through-hole 72；The screw rod end 31 of metallic rotator 3 passes through bellows chamber 51 and extend into the first counterbore 71
In.
In use, the other end of top connection 1 is connected and is connected with oil pipe, the second counterbore 73 on 7 other end of limiter
It is connect with torque anchor and lower tail pipe, the weight of lower tail pipe is acted on gap bridge outer tube 2 by limiter 7 and lower contact 6, and metal is fixed
The other end of son 5 due to metal stator centering ring 4 presence and be in vacant state, metal stator centering ring 4 plays righting
Effect, so that metal stator 5 is in coaxial position with gap bridge outer tube 2 always, ensure that metal stator 5 not by lower tail pipe weight
It influences；When gap bridge outer tube 2 is by lower tail pipe weight tensile elongation, lower contact 6 and limiter 7 also can be mobile with gap bridge outer tube 2,
So one end of metal stator 5 also can be mobile with lower contact 6, to smoothly be detached from metallic rotator 3, be not in deformation and
Holddown problem；Thus when needing to carry out the oil test operations such as lower perforating gun and downhole testing, without oil pipe, the present invention and lower tail
Pipe is proposed from oil well, metallic rotator 3 need to only be proposed, perforating gun or cable depth correction instrument device etc. are then passed through oil pipe, this hair
Bright and lower tail pipe is lowered into underground designated position and carries out operation, after the completion of test, takes out perforating gun or cable depth correction instrument device,
Again tripping in metallic rotator 3 can proceed with oil recovery.
As the large area of oil pumping in oil fields is exploited, all-metal screw formula oil well pump starts gradually to obtain batch application；Quan Jin
Belong to screw type oil-well and although solve elastomer stator screw pump intolerant to abrasion, not heatproof, service life is low, and easily swelling etc. is asked
Topic meets the requirement of oil-field thick-oil exploitation, but since all-metal screw formula oil well pump is welded using combined stator
Connect, thin-walled outer tube and locating pin type limiter structure, when all-metal screw formula oil well pump lower end hang with heavy duty descend tail pipe compared with
When long (pump lower end connects more than 1000 meters of lower tail pipes), metal stator is easy even disconnected by gravity stretcher strain in use
It splits, leads to holddown；And passed through inside locating pin type limiter without devices such as decree perforating gun, cable depth correction instrument devices, thus
Oil pipe, the pump housing and lower tail pipe must all be proposed from oil well before carrying out the oil test operations such as oil well perforation, test, it is time-consuming to take
Power, shut-down also result in additional operating cost；The present invention is provided with gap bridge outer tube 2 and metal stator centering ring 4, gap bridge outer tube
2 bear the gravity that lower tail pipe generates, and metal stator centering ring 4 makes gap bridge outer tube 2 and metal stator 5 always in same axle position
It sets, prevents metal stator 5 from stretcher strain occur and be even broken, avoid holddown；In addition, the present invention is also provided with hollow type limit
Device 7 can enable the devices such as perforating gun, cable depth correction instrument device pass through, thus be not necessarily to before carrying out the oil test operations such as oil well perforation, test
Oil pipe, the pump housing and lower tail pipe are all proposed from oil well, operating efficiency is substantially increased, it is time saving and energy saving, save operating cost.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, it will be understood by those of skill in the art that it still can be right
Technical solution documented by foregoing embodiments is modified, or is replaced on an equal basis to part of technical characteristic；And this
It modifies or replaces, the spirit and model of technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution
It encloses.
Claims (5)
1. a kind of all-metal bridge type screw pump, including top connection, gap bridge outer tube, metallic rotator, metal stator centering ring, metal
Stator, lower contact, limiter, which is characterized in that one end insertion of the limiter is screwed onto inside one end of lower contact, described
One end insertion of metal stator is screwed onto inside the other end of lower contact, and the other end of the metal stator is inserted in gap bridge outer tube
One end inside, one end of the gap bridge outer tube is also inserted into inside the other end for being screwed onto lower contact, the metal stator it is another
It is arranged on the outside of one end and is bolted with metal stator centering ring, one end insertion of the top connection is screwed onto the other end of gap bridge outer tube
Portion；The inside of the metal stator is interspersed to be connected with rotatable metallic rotator, and the other end of the metallic rotator, which is located at, passes a bridge
The inside of outer tube.
2. a kind of all-metal bridge type screw pump according to claim 1, which is characterized in that the metal stator centering ring
Positioned at gap bridge outer tube inside and be bonded to each other with the inner wall of gap bridge outer tube.
3. a kind of all-metal bridge type screw pump according to claim 1, which is characterized in that the inside of the metal stator
Offer bellows chamber.
4. a kind of all-metal bridge type screw pump according to claim 1, which is characterized in that in one end of the limiter
The heart offers the first counterbore, and the other end center of the limiter offers the second counterbore, the bottom center of second counterbore
Taper hole is offered, offers through-hole between the bottom center of the taper hole and the bottom center of the first counterbore.
5. a kind of all-metal bridge type screw pump according to claim 1, which is characterized in that the screw rod of the metallic rotator
End is across bellows chamber and extend into the first counterbore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811479082.7A CN109578270B (en) | 2018-12-05 | 2018-12-05 | All-metal gap bridge type screw pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811479082.7A CN109578270B (en) | 2018-12-05 | 2018-12-05 | All-metal gap bridge type screw pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109578270A true CN109578270A (en) | 2019-04-05 |
| CN109578270B CN109578270B (en) | 2023-10-31 |
Family
ID=65926330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811479082.7A Active CN109578270B (en) | 2018-12-05 | 2018-12-05 | All-metal gap bridge type screw pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109578270B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110242559A (en) * | 2019-07-21 | 2019-09-17 | 中石化石油工程技术服务有限公司 | A kind of subsurface progressive cavity and the construction method for passing through subsurface progressive cavity |
| CN114215743A (en) * | 2021-12-28 | 2022-03-22 | 潍坊宝峰机械有限公司 | Super large displacement high-lift screw pump |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2641327Y (en) * | 2003-09-11 | 2004-09-15 | 于宝奎 | Sand blocking proof type screw stem pump |
| CN2700606Y (en) * | 2003-12-03 | 2005-05-18 | 扬振平 | Ground surface driven screw pump for rodless pumping operation |
| CN201121583Y (en) * | 2007-10-19 | 2008-09-24 | 宁波正鼎石油机械设备制造有限公司 | Extension type full-metal single screw oil pump |
| DE102009010107A1 (en) * | 2009-02-21 | 2010-08-26 | Wilo Se | Eccentric spiral pump for use in domestic waste water drainage system, has rotor provided with spiral-shaped or screw-shaped outer contour that is driven by drive motor, where outer surface of rotor is formed by rubber or flexible plastic |
| CN108223358A (en) * | 2018-01-31 | 2018-06-29 | 新乡市夏烽电器有限公司 | Latent oil directly-driven screw pump unit |
| CN208106738U (en) * | 2018-04-02 | 2018-11-16 | 盐城世宏石油装备有限公司 | A kind of all-metal screw formula oil well pump |
-
2018
- 2018-12-05 CN CN201811479082.7A patent/CN109578270B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2641327Y (en) * | 2003-09-11 | 2004-09-15 | 于宝奎 | Sand blocking proof type screw stem pump |
| CN2700606Y (en) * | 2003-12-03 | 2005-05-18 | 扬振平 | Ground surface driven screw pump for rodless pumping operation |
| CN201121583Y (en) * | 2007-10-19 | 2008-09-24 | 宁波正鼎石油机械设备制造有限公司 | Extension type full-metal single screw oil pump |
| DE102009010107A1 (en) * | 2009-02-21 | 2010-08-26 | Wilo Se | Eccentric spiral pump for use in domestic waste water drainage system, has rotor provided with spiral-shaped or screw-shaped outer contour that is driven by drive motor, where outer surface of rotor is formed by rubber or flexible plastic |
| CN108223358A (en) * | 2018-01-31 | 2018-06-29 | 新乡市夏烽电器有限公司 | Latent oil directly-driven screw pump unit |
| CN208106738U (en) * | 2018-04-02 | 2018-11-16 | 盐城世宏石油装备有限公司 | A kind of all-metal screw formula oil well pump |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110242559A (en) * | 2019-07-21 | 2019-09-17 | 中石化石油工程技术服务有限公司 | A kind of subsurface progressive cavity and the construction method for passing through subsurface progressive cavity |
| CN114215743A (en) * | 2021-12-28 | 2022-03-22 | 潍坊宝峰机械有限公司 | Super large displacement high-lift screw pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109578270B (en) | 2023-10-31 |
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