CN106894768A - From the oil well oil-pumping tubing except sandstone - Google Patents
From the oil well oil-pumping tubing except sandstone Download PDFInfo
- Publication number
- CN106894768A CN106894768A CN201710241862.7A CN201710241862A CN106894768A CN 106894768 A CN106894768 A CN 106894768A CN 201710241862 A CN201710241862 A CN 201710241862A CN 106894768 A CN106894768 A CN 106894768A
- Authority
- CN
- China
- Prior art keywords
- oil
- tube
- sand
- protection tube
- outer protection
- 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
- 239000003129 oil well Substances 0.000 title claims abstract description 16
- 238000005086 pumping Methods 0.000 title claims abstract description 16
- 239000004576 sand Substances 0.000 claims abstract description 68
- 238000003032 molecular docking Methods 0.000 claims abstract description 23
- 239000013049 sediment Substances 0.000 claims abstract description 23
- 239000000203 mixture Substances 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 19
- 230000000694 effects Effects 0.000 abstract description 7
- 238000005065 mining Methods 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 abstract description 3
- 238000005457 optimization Methods 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 30
- 238000000034 method Methods 0.000 description 13
- 239000010779 crude oil Substances 0.000 description 10
- 238000001914 filtration Methods 0.000 description 8
- 238000005299 abrasion Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B27/00—Containers for collecting or depositing substances in boreholes or wells, e.g. bailers, baskets or buckets for collecting mud or sand; Drill bits with means for collecting substances, e.g. valve drill bits
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/02—Subsoil filtering
- E21B43/08—Screens or liners
Abstract
The invention belongs to sandstone oil reservoir mining machines equipment field, more particularly to certainly except the oil well oil-pumping tubing of sandstone, the oil pick-up tube includes collection sandpipe and several sections of sediment outflow pipes docking composition from the bottom to top, the sediment outflow pipe includes the lumen tube being sequentially socketed, pushes away sand rotor and outer protection tube from the inside to the outside, through hole is offered in lumen tube and outer protection tube, sand rotor is pushed away and is made up of the sandpipe that pushes away that spiral filter screen and spiral filter screen end are set；Outer protection tube two ends and collection sandpipe top are equipped with docking end cap, push away sandpipe top and are connected with ring-type joint, are connected by outer, inner bearing respectively between ring-type joint and outer protection tube, between ring-type joint and lumen tube.Simple structure of the present invention, designs ingenious, and on the basis of further optimization mechanical sand control effect, liquid flowing drive pushes away gravel under pushing away sand rotor during by mining, prevents gravel from being piled up between outer casing and lumen tube to greatest extent.
Description
Technical field
The invention belongs to sandstone oil reservoir mining machines equipment field, more particularly to certainly except the oil well oil-pumping tubing of sandstone.
Background technology
China's loose sand oil accumulation has a very wide distribution, and reserves are big, need to face the problem of sand production in development process.It
It is very common in this kind of stratum is developed, the formation damage that the loose easy peeling of reservoir or drilling operation cause is come from, with landing surface
Drilling, the stratum sandstone of peeling enters well with fluid, abrasion tube wall, stuck well bore, often lead to oil mining be obstructed, well bore
The consequences such as service life reduction, development cost increase.Reply formation sand production, using mechanical sand control, chemical sand control, composite sand prevention.Wherein
Mechanical sand control method application is wider, including under enter sand control sleeve pipe and gravel filling method, it is to avoid reservoir sand enters well.Filled for gravel
Method is filled out, it uses different-grain diameter gravel filter sand step by step, operation is complicated, high cost, improperly grain size of gravel even can influence production capacity.
The method for entering sand control sleeve pipe under, sand control case off well bore and stratum, sandstone stop outside, though process is simple, common
Sand control sleeve pipe does not possess the function of self-cleaning, and sleeve pipe easily gradually piles up abrasion, influence sand controlling result by fine sand, and usage cycles are short, need
Often to change, cause that duty cycle is elongated, cost increases, or even influence oil well output, reservoir sand output can only be prevented, it is impossible to
Reservoir sand is prevented to enter pit shaft.And existing anti-sand method and technique are all difficult to solution and shake out serious and fine sand the problems such as shake out.
In order to improve development efficiency, scene also has higher requirements to sand-preventing process, therefore simple sand control sleeve pipe thoroughly can not solve ground
Layer shakes out the harmful effect for bringing, and the sand control sleeve pipe for possessing self-purification function can effectively evade this problem.
The content of the invention
It is an object of the invention to provide a kind of oil well oil-pumping tubing from except sandstone, simple structure of the present invention designs ingenious,
Further on the basis of optimization mechanical sand control effect, liquid flowing drive pushes away gravel, maximum limit under pushing away sand rotor during by mining
Degree prevents gravel from being piled up between outer casing and lumen tube.
In order to solve the above technical problems, the technical solution adopted by the present invention is as follows：
From the oil well oil-pumping tubing except sandstone, the oil pick-up tube includes collection sandpipe and several sections of sediment outflow pipes docking composition, institute from the bottom to top
State sediment outflow pipe includes the lumen tube being sequentially socketed, pushes away sand rotor and outer protection tube from the inside to the outside, is offered in lumen tube and outer protection tube
Through hole, pushes away sand rotor and is made up of the sandpipe that pushes away that spiral filter screen and spiral filter screen end are set；Outer protection tube two ends and collection sandpipe top
Docking end cap is equipped with, sandpipe top is pushed away and is connected with ring-type joint, between ring-type joint and outer protection tube, ring-type joint and lumen tube
Between connected by outer, inner bearing respectively.
Preferably, the outer protection tube end is connected by gusset with docking end cap, and docking end cap leads to ring-type joint outer wall
Outer bearing connection is crossed, and butt end is covered and is provided with stifled oil pocket in outer bearing lower section, and inner seal ring is provided with stifled oil pocket.
Preferably, sealing plate, the top surface of sealing plate are provided between the outer protection tube and lumen tube and positioned at outer bearing top
Annular oil sealing groove is provided with, exterior seal ring is provided with annular oil sealing groove.
Preferably, the butt end covers and is provided with townhouse through hole.
Preferably, conical through-hole, the larger one end open court of conical through-hole bore are offered on the tube wall of the outer protection tube
Outwardly.
Preferably, the collection sand cylinder includes offering the cylinder of several leakage sand through holes, in the correspondence sediment outflow pipe of collection sand cylinder top
Oil separating plate is provided with lumen, oil separating plate periphery is connected by connecting rod with docking end cap.
Preferably, the outer bearing is upper and lower angular contact ball bearing setting up and down.
Preferably, the inner bearing is needle bearing.
The present invention operationally, carries crude oil gritty and enters in outer protection tube from the conical through-hole of outer protection tube, Ran Houtong
Cross after the spiral strainer filtering for pushing away sand rotor and enter in lumen tube, and be moved upward under extraneous oil pump effect and be collected.
Crude oil in above process, wherein the gravel for carrying sequentially passes through the conical through-hole of outer protection tube and the mistake of spiral filter screen
Filter so as to reach the effect of desanding, because two outer imperial palaces of opening bore of conical through-hole are small, the sand that particle can be caused larger
Gravel is stuck in conical through-hole, plays a part of aided filter, further prevents other bulky grain gravels from entering outer protection tube；Crude oil exists
In flow process, spiral filter screen and ring-type joint can be driven to be rotated between inside and outside bearing, will adsorbed in spiral filter screen
On gravel under push away, during gravel falls, the townhouse through hole covered from butt end falls into collection sand cylinder and is precipitated, and matches somebody with somebody
Intersection sand cylinder carries out Auxiliary support to the sediment outflow pipe of top.And townhouse through hole can improve flowing of the crude oil between sediment outflow pipe
Property, push away sand rotor beneficial to promotion and rotated.
The spacing of collection sand cylinder lifting sediment outflow pipe distance bottom surface rock stratum, there is provided the space that effluent sand gravel is piled up so that the present invention
Described oil pick-up tube keeps the self-cleaning function of sandstone.Oil separating plate at the top of collection sand cylinder can block the inner chamber of bottommost sediment outflow pipe
Bottom of the tube port, prevents sandy crude from entering lumen tube without filtering.
It is outer that stifled oil pocket and interior sealing pad below outer bearing can prevent the sandy crude without spiral strainer filtering from contacting
Bearing, effectively prevents gravel from abrasion is caused to outer bearing.
Sealing plate between the sediment outflow pipe of docking is provided with annular oil sealing groove and exterior seal ring, and sandy crude can be prevented straight
Tap into lumen tube.
The present invention compared with prior art, has the following advantages that：
1）Simple structure, on the basis of further optimization mechanical sand control effect, crude oil flow drives and pushes away sand turn during by pumping
Son pushes down on sand, and most gravel is drained into collection sand cylinder at last, gravel is prevented to greatest extent on spiral filter screen and outer protection tube inwall
Absorption is piled up；
2）It is reasonable in design, gravel is filtered first with the conical through-hole in outer protection tube and clamping, will be of the prior art " straight
Hole filtering sand " is converted into " the gravel filtering sand in conical through-hole ", and the irregular shape of gravel not only can be prevented effectively
The blocking of through hole, and the degree of wear of outer protection tube can be reduced, improve the exploitation quality and efficiency of loose rock sandstone oil reservoir；
3）Extra power source need not be provided when pushing away the rotation of sand rotor, the liquid flowing produced using oil recovery power can meet certainly
Turn to push away the demand of sand, and inside and outside bearing by the sealing of seal washer, the invasion and attack of gravel effectively in isolation crude oil, device is whole
Body long service life, is hardly damaged, beneficial to marketing.
Brief description of the drawings
Fig. 1 be specific embodiment in from except sandstone oil pick-up tube structural representation；
Fig. 2 is the structural representation of collection sand cylinder in Fig. 1；
Fig. 3 is the cross-sectional view of sediment outflow pipe in specific embodiment；
Fig. 4 is the sediment outflow tubular construction schematic diagram of docking in specific embodiment；
Fig. 5 is to push away the structural representation of sand rotor in specific embodiment.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
As Figure 1-5, from the oil well oil-pumping tubing except sandstone, the oil pick-up tube includes collection sandpipe 4 and several sections of from the bottom to top
The docking composition of sediment outflow pipe 1, the sediment outflow pipe 1 includes the lumen tube 3 being sequentially socketed, pushes away sand rotor and outer protection tube 11 from the inside to the outside,
The two ends of outer protection tube 11 are connected by gusset 13 with docking end cap 14, and the top of collection sandpipe 4 is connected by gusset with docking end cap 42, interior
Conical through-hole 12, the larger one end of the bore of conical through-hole 12 are offered on the tube wall that through hole and outer protection tube 11 are offered on lumen 3
Opening direction is extraneous；Push away sand rotor to be made up of the sandpipe 22 that pushes away that spiral filter screen 21 and spiral filter screen end are set, push away sandpipe 22 and push up
Portion is connected with ring-type joint 2, docking end cap 14 and the outer wall of ring-type joint 2 by upper angular contact ball bearing 35 setting up and down, under
Angular contact ball bearing 36 is connected, and is connected by needle bearing 37 between the inwall of ring-type joint 2 and lumen tube 3.On docking end cap 14
Stifled oil pocket 33 is provided with the lower section of lower angular contact ball bearing 36, inner seal ring 34 is provided with stifled oil pocket 33.Outer protection tube 11 and lumen tube 3
Between and positioned at the top of upper angular contact ball bearing 35 be provided with sealing plate 31, the top surface of sealing plate 31 is provided with annular oil sealing groove, ring
Exterior seal ring 32 is provided with shape oil sealing groove.Docking end cap 14 and docking end cap 42 are provided with townhouse through hole 15；
The collection sand cylinder 4 collects at the corresponding sediment outflow tube cavity pipe 3 in the top of sand cylinder 4 including offering several cylinders for leaking sand through holes 41
Oil separating plate 44 is provided with, the periphery of oil separating plate 44 is connected by connecting rod 43 with docking end cap 42.
The present invention operationally, carries crude oil gritty and enters in outer protection tube from the conical through-hole of outer protection tube, Ran Houtong
Cross after the spiral strainer filtering for pushing away sand rotor and enter in lumen tube, and be moved upward under extraneous oil pump effect and be collected.
Crude oil in above process, wherein the gravel for carrying sequentially passes through the conical through-hole of outer protection tube and the mistake of spiral filter screen
Filter so as to reach the effect of desanding, because two outer imperial palaces of opening bore of conical through-hole are small, the sand that particle can be caused larger
Gravel is stuck in conical through-hole, plays a part of aided filter, further prevents other bulky grain gravels from entering outer protection tube；Crude oil exists
In flow process, spiral filter screen and ring-type joint can be driven to be rotated between bearing, will adsorbed on spiral filter screen
Pushed away under gravel.During gravel falls, the townhouse through hole covered from butt end falls into collection sand cylinder and is precipitated, and with intersection
Sand cylinder carries out Auxiliary support to the sediment outflow pipe of top.And townhouse through hole can improve mobility of the crude oil between sediment outflow pipe,
Sand rotor is pushed away beneficial to promotion to be rotated.
The spacing of collection sand cylinder lifting sediment outflow pipe distance bottom surface rock stratum, there is provided the space that effluent sand gravel is piled up so that the present invention
Described oil pick-up tube keeps the self-cleaning function of sandstone.Oil separating plate at the top of collection sand cylinder can block the inner chamber of bottommost sediment outflow pipe
Bottom of the tube port, prevents sandy crude from entering lumen tube without filtering.
Stifled oil pocket and interior sealing pad can prevent the sandy crude without spiral strainer filtering from contacting outer bearing, effectively prevent
Gravel causes abrasion to outer bearing.Sealing plate between the sediment outflow pipe of docking is provided with annular oil sealing groove and exterior seal ring, can be with
Sandy crude is prevented to be directly entered lumen tube.
Claims (8)
1. from the oil well oil-pumping tubing except sandstone, it is characterised in that the oil pick-up tube includes collection sandpipe and several sections of sediment outflows from the bottom to top
Pipe docking composition, the sediment outflow pipe includes the lumen tube being sequentially socketed, pushes away sand rotor and outer protection tube from the inside to the outside, lumen tube and outer
Through hole is offered on pillar, sand rotor is pushed away and is made up of the sandpipe that pushes away that spiral filter screen and spiral filter screen end are set；Outer protection tube two ends
Docking end cap is equipped with collection sandpipe top, sandpipe top is pushed away and is connected with ring-type joint, between ring-type joint and outer protection tube, ring-type
Connected by outer, inner bearing respectively between joint and lumen tube.
2. it is as claimed in claim 1 from the oil well oil-pumping tubing for removing sandstone, it is characterised in that the outer protection tube end passes through gusset
It is connected with docking end cap, docking end cap is connected with ring-type joint outer wall by outer bearing, and butt end is covered in outer bearing lower section
Stifled oil pocket is provided with, inner seal ring is provided with stifled oil pocket.
3. it is as claimed in claim 1 from the oil well oil-pumping tubing for removing sandstone, it is characterised in that between the outer protection tube and lumen tube
And sealing plate is provided with positioned at outer bearing top, the top surface of sealing plate is provided with annular oil sealing groove, is provided with outer close in annular oil sealing groove
Seal.
4. it is as claimed in claim 1 from the oil well oil-pumping tubing for removing sandstone, it is characterised in that the butt end covers and is provided with townhouse
Through hole.
5. it is as claimed in claim 1 from the oil well oil-pumping tubing for removing sandstone, it is characterised in that to be opened up on the tube wall of the outer protection tube
There is conical through-hole, the larger one end open direction of conical through-hole bore is extraneous.
6. it is as claimed in claim 1 from the oil well oil-pumping tubing for removing sandstone, it is characterised in that the collection sand cylinder includes offering number
The cylinder of individual leakage sand through hole, is provided with oil separating plate at the correspondence sediment outflow tube cavity pipe of collection sand cylinder top, oil separating plate periphery by connecting rod with
Docking end cap connection.
7. it is as claimed in claim 1 from the oil well oil-pumping tubing for removing sandstone, it is characterised in that the outer bearing is setting up and down
Upper and lower angular contact ball bearing.
8. it is as claimed in claim 1 from the oil well oil-pumping tubing for removing sandstone, it is characterised in that the inner bearing is needle bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710241862.7A CN106894768B (en) | 2017-04-14 | 2017-04-14 | From the oil well oil-pumping tubing for removing sandstone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710241862.7A CN106894768B (en) | 2017-04-14 | 2017-04-14 | From the oil well oil-pumping tubing for removing sandstone |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106894768A true CN106894768A (en) | 2017-06-27 |
| CN106894768B CN106894768B (en) | 2019-07-05 |
Family
ID=59196588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710241862.7A Expired - Fee Related CN106894768B (en) | 2017-04-14 | 2017-04-14 | From the oil well oil-pumping tubing for removing sandstone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106894768B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EA000332B1 (en) * | 1995-11-08 | 1999-04-29 | Шелл Интернэшнл Рисерч Маатсхаппий Б.В. | Deformable well screen and method for its installation |
| CN1804367A (en) * | 2006-01-07 | 2006-07-19 | 大连大学 | Sleeved sand control device for downhole oil extraction device |
| CN201184183Y (en) * | 2008-03-06 | 2009-01-21 | 大庆石油学院 | De-sanding and de-gassing device of oil extraction screw pump |
| CN103541695A (en) * | 2013-10-24 | 2014-01-29 | 西安陆海油田设备有限公司 | Dynamic self-cleaning screen pipe |
| CN203515515U (en) * | 2013-09-24 | 2014-04-02 | 山东大学 | High-throughput sand filter pipe sand prevention matched pipe string |
| CN203891849U (en) * | 2014-05-14 | 2014-10-22 | 中国石油大学(华东) | Spiral detachable slotted oblique-wire sand filter pipe |
| CN105507854A (en) * | 2014-09-27 | 2016-04-20 | 中国石油化工集团公司 | Screw pump sand filter pipe |
| CN206035457U (en) * | 2016-09-14 | 2017-03-22 | 陈洪强 | Sand control filter sand device for oil production pipe |
-
2017
- 2017-04-14 CN CN201710241862.7A patent/CN106894768B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EA000332B1 (en) * | 1995-11-08 | 1999-04-29 | Шелл Интернэшнл Рисерч Маатсхаппий Б.В. | Deformable well screen and method for its installation |
| CN1804367A (en) * | 2006-01-07 | 2006-07-19 | 大连大学 | Sleeved sand control device for downhole oil extraction device |
| CN201184183Y (en) * | 2008-03-06 | 2009-01-21 | 大庆石油学院 | De-sanding and de-gassing device of oil extraction screw pump |
| CN203515515U (en) * | 2013-09-24 | 2014-04-02 | 山东大学 | High-throughput sand filter pipe sand prevention matched pipe string |
| CN103541695A (en) * | 2013-10-24 | 2014-01-29 | 西安陆海油田设备有限公司 | Dynamic self-cleaning screen pipe |
| CN203891849U (en) * | 2014-05-14 | 2014-10-22 | 中国石油大学(华东) | Spiral detachable slotted oblique-wire sand filter pipe |
| CN105507854A (en) * | 2014-09-27 | 2016-04-20 | 中国石油化工集团公司 | Screw pump sand filter pipe |
| CN206035457U (en) * | 2016-09-14 | 2017-03-22 | 陈洪强 | Sand control filter sand device for oil production pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106894768B (en) | 2019-07-05 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190705 |