CN201437691U - Self-lubricating process pipe column separator - Google Patents
Self-lubricating process pipe column separator Download PDFInfo
- Publication number
- CN201437691U CN201437691U CN2009201086521U CN200920108652U CN201437691U CN 201437691 U CN201437691 U CN 201437691U CN 2009201086521 U CN2009201086521 U CN 2009201086521U CN 200920108652 U CN200920108652 U CN 200920108652U CN 201437691 U CN201437691 U CN 201437691U
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- Prior art keywords
- oil
- self
- ring
- urceolus
- oil pipe
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- Expired - Lifetime
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- 238000000034 method Methods 0.000 title claims abstract description 31
- 230000008878 coupling Effects 0.000 claims abstract description 20
- 238000010168 coupling process Methods 0.000 claims abstract description 20
- 238000005859 coupling reaction Methods 0.000 claims abstract description 20
- 239000007788 liquid Substances 0.000 claims abstract description 20
- 125000006850 spacer group Chemical group 0.000 claims abstract description 19
- 210000002445 nipple Anatomy 0.000 claims description 6
- 239000008393 encapsulating agent Substances 0.000 claims description 2
- 239000003129 oil well Substances 0.000 abstract description 20
- 230000000694 effects Effects 0.000 abstract description 8
- 238000000605 extraction Methods 0.000 abstract description 5
- 239000000314 lubricant Substances 0.000 abstract description 5
- 239000012530 fluid Substances 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 abstract 2
- 239000003921 oil Substances 0.000 description 45
- 239000003795 chemical substances by application Substances 0.000 description 12
- 238000005086 pumping Methods 0.000 description 11
- 238000005461 lubrication Methods 0.000 description 10
- 239000010779 crude oil Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000001050 lubricating effect Effects 0.000 description 3
- 238000005065 mining Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229920002292 Nylon 6 Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 description 1
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Abstract
A self-lubricating process pipe column separator is applied to an oil extraction downhole pipe column in an oil field. Is characterized in that: the oil outlet joint is characterized in that a cylindrical outer barrel is connected between the upper oil pipe coupling and the lower oil pipe coupling in a threaded manner, a central hole is formed in the bottom of the outer barrel, a central sealing rod penetrates through the central hole of the outer barrel, sealing rings and spacer rings are alternately arranged in an annular space, the lower portion of the lower oil pipe coupling is connected with an oil outlet joint in a threaded manner, the oil outlet joint is cylindrical, external threads are arranged at two ends of the oil outlet joint, a high-water-content well fluid outlet hole is formed in the wall of the oil outlet joint, the lower end of the oil outlet joint is connected with an oil pipe in a threaded. The effect is as follows: the separator has the main effects that produced liquid in an oil well is separated from lubricant in an oil pipe, so that the lubricant in the oil pipe cannot be leaked out, the produced liquid cannot enter the oil pipe through the separator, the lubricant in the oil pipe can be fully exerted, and the self-lubricating process pipe column is realized.
Description
Technical field
The utility model relates to oil recovery technique field, oil field, adopts special tool in particularly a kind of producing well lower tubular column, is the eliminator on a kind of self-lubricating string.
Background technology
In the inclined shaft sucker rod pumping, the method that prevents fretting wear between oil pipe and the sucker rod that for many years people adopted all is to adopt oil pumping rod centering device, and this method is according to certain spacing oil pumping rod centering device to be installed on whole pumping rod.The external diameter of this centralizer is a bit larger tham the rod collar external diameter, and its material adopts nylon 6 or other macromolecular material die casting to form usually.Centralizer has played the effect that the R a T inwall is isolated in normal productive process, makes R a T obtain to a certain degree protection, has slowed down the fretting wear between sucker rod and the tube inner wall.But because centralizer material is softer relatively; under the not high situation of water ratio in oil well; because crude oil lubrication better performances; adopting oil pumping rod centering device is a kind of measure that slows down eccentric wear really; but after oil well entered high water-cut stage, because the lubricating condition variation, centralizer was by rapid wearing at short notice; do not had the protection of centralizer, rod collar and tube inner wall are worn very soon.Though for many years aspect oil pumping rod centering device, done a large amount of research, also only be material and the form of structure aspect that is confined to centralizer, the change of fundamental character does not take place in the basic principle of its protection sucker rod.
Set upright the problem that technology exists at above-mentioned sucker rod, change only relied on the roofbolt centralizer to alleviate the pattern of fretting wear between rod tube in inclined shaft sucker rod pump system in the past, by designing a kind of new lifting technology tubing string, make directional well sucker rod pumping system become oil lubrication at the water lubrication between rod tube between high water-cut stage, realize slowing down significantly the fretting wear between R a T, prolong the pump detection period of oil well.
The anti-eccentric wear self-lubricating process pipe string of inclined shaft is a cover can effectively prevent the rod tube heavy wear that inclined shaft sucker rod pump mining system produces in oil well high water-cut stage manufacturing process a process pipe string.This process pipe string mainly is made up of six parts such as oil well pump assembly, packer assembly, on-off connector assembly, eliminator assembly, bleeder assembly and sliding agent.
The technological principle of this process pipe string is simple, and the main effect of packer and eliminator is: packer separates the oil jacket annular space; The well liquid that eliminator is extracted oil well pump out separates with sliding agent and with output liquid importing oil jacket annular space, makes produced liquid in oil well become by oil sets annular space and give rise to ground by giving rise to ground from oil pipe originally; The main effect of on-off connector is that the center-pole with sucker rod and eliminator couples together; The main effect of bleeder is when operation the lubrication oil in the oil pipe to be leaked in the well, prevents the pollution of lubrication oil to ground environment.
This process pipe string is sealed in sucker rod to be filled in the lubrication oil oil pipe, make lubricated the lubricating between sucker rod and the oil pipe become pure oil lubrication by original well liquid, like this, lower the friction factor between the rod tube greatly, solved the rod and tube partial-wear problem between the oil well high water-cut stage completely.The application of this process pipe string will prolong the pump detection period of high water-cut stage inclined shaft sucker rod pump mining system greatly, for production unit brings remarkable economic efficiency.
This process pipe string had thoroughly changed in the past and only relies on the roofbolt centralizer to alleviate the thinking of fretting wear between rod tube in inclined shaft sucker rod pump system, catch inclined shaft sucker rod pump mining system between the oil well high water-cut stage, to cause the main cause of rod and tube partial-wear, fundamentally solved the problem of rod and tube partial-wear.
This process pipe string adopts crude oil as sliding agent, and each mouthful oil well is according to the different needs 3～5m of eccentric wear position
3Crude oil, the crude oil as sliding agent during operation leaks in the well, and is promptly free from environmental pollution, can recycle and reuse again, has low cost, the characteristics of high benefit.
At normal productive process,, therefore can not produce the problem of well liquid and mix lubricant because the liquid in the whole pit shaft is in a basic balance at the pressure of eliminator position.Because the weight of annulus fluid is pressed on the packer, can not produce the problem of oil pipe wriggling in addition yet.
The utility model content
The purpose of this utility model is: a kind of self-lubricating process pipe string eliminator is provided, be connected on the anti-eccentric wear self-lubricating process pipe string of inclined shaft, can realize the sliding agent on eliminator top and effectively separating of extraction well liquid, there is not eliminator, sliding agent mixes with extraction well liquid, anti-eccentric wear self-lubricating process pipe string just can not be realized, therefore, has designed the self-lubricating string eliminator.
The technical solution adopted in the utility model is: self-lubricating process pipe string eliminator mainly constitutes by becoming snapping head, upward tubing coupling, locking nut, seal pressure ring, joint ring, spacer ring, urceolus, central seal bar, following tubing coupling and delivery connection.It is characterized in that each parts correlation is: urceolus cylindraceous has been threaded between last tubing coupling and following tubing coupling, centre bore is arranged at the bottom of urceolus, the central seal bar passes the urceolus centre bore, between outer tube inner wall and central seal bar, annular space is arranged, joint ring and spacer ring are alternate to be installed in the annular space, joint ring and spacer ring are annular, joint ring adopts encapsulant to make, lower thread in tubing coupling down is connected with delivery connection, delivery connection is that cylindric two ends have external screw thread, high water-cut well liquid tap hole is arranged on the delivery connection wall, the delivery connection lower end has screw thread can connect oil pipe, the two ends up and down of central seal bar have external screw thread respectively, and the two ends up and down of central seal bar are connected with nipple and locking nut respectively.
Described tap hole is the strip sky, and quantity has four.
The internal diameter of spacer ring is bigger 1～3 millimeter than joint ring internal diameter; The external diameter of spacer ring is littler 1～3 millimeter than joint ring external diameter.
The operating principle of eliminator is: at first the fuel-displaced pipe nipple with separator lower end is connected with the upper end of packer, then the central seal bar in the eliminator is connected with oil well pump pull bar in the oil well pump, lower end with packer is connected with the upper end of oil well pump at last, like this, eliminator has just played the effect that the lubrication oil in the oil pipe and oil jacket annular space are separated.The well liquid that oil well pump is extracted out is with lubrication oil is separated and output liquid is imported annular space between oil pipe and the sleeve pipe, makes produced liquid in oil well be become by the annular space between oil pipe and the sleeve pipe and given rise to ground by the original ground that gives rise in the oil pipe.Reach and separate the purpose that produced liquid in oil well and lubrication oil thoroughly separate.
The beneficial effects of the utility model: the utility model self-lubricating process pipe string eliminator, it is an important component part in the anti-eccentric wear self-lubricating process pipe string, the main effect of eliminator is that extraction liquid in the oil well and the lubricant separation in the oil pipe are opened, sliding agent in the assurance oil pipe can not missed, extraction liquid can not enter in the oil pipe by eliminator again, sliding agent in the oil pipe is played one's part to the full, realize the self-lubricating process pipe string.
Description of drawings
Fig. 1 is the utility model self-lubricating process pipe string cyclone separator arrangement generalized section.
Among the figure, 1. become the snapping head, 2. go up tubing coupling, 3. locking nut, 4. seal pressure ring, 5. joint ring, 6. spacer ring, 7. urceolus, 8. the central seal bar 9. descends tubing coupling, 10. delivery connection, 11. tap holes.
The specific embodiment
Embodiment 1: with a self-lubricating process pipe string eliminator is example, and the utility model is described in further detail.
Consult Fig. 1.The utility model self-lubricating process pipe string eliminator mainly is made up of nipple 1, upward tubing coupling 2, locking nut 3, seal pressure ring 4, joint ring 5, spacer ring 6, urceolus 7, central seal bar 8, following tubing coupling 9 and delivery connection 10.The urceolus 7 cylindraceous that has been threaded between last tubing coupling 2 and following tubing coupling 9, the internal diameter of urceolus 7 is 50.5 millimeters.Centre bore is arranged at the bottom of urceolus 7, and the diameter of centre bore is identical with central seal bar 8.Central seal bar 8 passes urceolus 7 centre bores.Between urceolus 7 inwalls and central seal bar 8, annular space is arranged, joint ring 5 and spacer ring 6 alternate being installed in the annular space.Joint ring 5 and spacer ring 6 are annular, and joint ring 5 adopts rubber to make.Lower thread in down tubing coupling 9 is connected with delivery connection 10, and delivery connection 10 has external screw thread for cylindric two ends, and high water-cut well liquid tap hole 11 is arranged on delivery connection 10 walls.Delivery connection 10 lower end screw threads can connect oil pipe.There is external screw thread at the two ends up and down of central seal bar 8, and the two ends up and down of central seal bar 8 are connected with nipple 1 and locking nut 3 respectively.Nipple 1 can connect sucker rod.
The diameter of central seal bar 8 is 28 millimeters, and length is 9.5 meters.The internal diameter of spacer ring 6 is bigger 0.5 millimeter than joint ring 5 internal diameters; The external diameter of spacer ring 6 is identical with joint ring 5 external diameters.The internal diameter of spacer ring 6 is 28.01 millimeters, 50 millimeters of external diameters, 15 millimeters of height.Joint ring 5 internal diameters are 28 millimeters, 50 millimeters of external diameters, 15 millimeters of height.Spacer ring 6 and joint ring 5 have 30 groups altogether.
Install and use process: oil well pump, packer, eliminator, bleeder assembly and on-off connector lower body order with the oil pipe G.I.H, are carried out setting of packer then, sliding agent is injected in the oil pipe with gasoline pump.Because the utility model eliminator is separated oil pipe and oil well pump; sliding agent can not enter the oil jacket annular space by eliminator; liquid in the oil jacket annular space can not enter in the oil pipe by eliminator; whole pumping rod comprises that oil pumping rod centering device all is immersed in the sliding agent; thereby guaranteed that effectively centralizer and sucker rod are in the sliding agent lubricating status all the time in whole reciprocal running; thereby reduced the friction factor between sucker rod and oil pumping rod centering device and the oil pipe significantly, protected sucker rod and oil pumping rod centering device, oil pipe.
Claims (3)
1. self-lubricating process pipe string eliminator, mainly by becoming snapping head (1), last tubing coupling (2), locking nut (3), seal pressure ring (4), joint ring (5), spacer ring (6), urceolus (7), central seal bar (8), following tubing coupling (9) and delivery connection (10) constitute, it is characterized in that each parts correlation is: urceolus cylindraceous (7) has been threaded between last tubing coupling (2) and following tubing coupling (9), centre bore is arranged at the bottom of urceolus (7), central seal bar (8) passes urceolus (7) centre bore, between urceolus (7) inwall and central seal bar (8), annular space is arranged, joint ring (5) is alternate with spacer ring (6) to be installed in the annular space, joint ring (5) and spacer ring (6) are annular, joint ring (5) adopts encapsulant to make, lower thread in tubing coupling (9) down is connected with delivery connection (10), delivery connection (10) has external screw thread for cylindric two ends, on delivery connection (10) wall, high water-cut well liquid tap hole (11) is arranged, delivery connection (10) lower end has screw thread can connect oil pipe, the two ends up and down of central seal bar (8) have external screw thread respectively, and the two ends up and down of central seal bar (8) are connected with nipple (1) and locking nut (3) respectively.
2. self-lubricating process pipe string eliminator according to claim 1 is characterized in that: described tap hole (11) is the strip sky, and quantity has four.
3. self-lubricating process pipe string eliminator according to claim 1 and 2 is characterized in that: the internal diameter of spacer ring (6) is bigger 1～3 millimeter than joint ring (5) internal diameter; The external diameter of spacer ring (6) is littler 1～3 millimeter than joint ring (5) external diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201086521U CN201437691U (en) | 2009-05-27 | 2009-05-27 | Self-lubricating process pipe column separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201086521U CN201437691U (en) | 2009-05-27 | 2009-05-27 | Self-lubricating process pipe column separator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201437691U true CN201437691U (en) | 2010-04-14 |
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ID=42399667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201086521U Expired - Lifetime CN201437691U (en) | 2009-05-27 | 2009-05-27 | Self-lubricating process pipe column separator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201437691U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102704891A (en) * | 2012-06-26 | 2012-10-03 | 刘庆敏 | Device for collecting oil well natural gas |
| CN104912492A (en) * | 2015-05-27 | 2015-09-16 | 中国海洋石油总公司 | Stepless angle adjusting device for rotation of tubular column |
-
2009
- 2009-05-27 CN CN2009201086521U patent/CN201437691U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102704891A (en) * | 2012-06-26 | 2012-10-03 | 刘庆敏 | Device for collecting oil well natural gas |
| CN104912492A (en) * | 2015-05-27 | 2015-09-16 | 中国海洋石油总公司 | Stepless angle adjusting device for rotation of tubular column |
| CN104912492B (en) * | 2015-05-27 | 2017-03-15 | 中海油能源发展股份有限公司 | A kind of stepless angle regulator for tubing string rotation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100414 |