CN201620822U - Multifunctional sand-proof downhole throttle for gas well - Google Patents
Multifunctional sand-proof downhole throttle for gas well Download PDFInfo
- Publication number
- CN201620822U CN201620822U CN201020128574.4U CN201020128574U CN201620822U CN 201620822 U CN201620822 U CN 201620822U CN 201020128574 U CN201020128574 U CN 201020128574U CN 201620822 U CN201620822 U CN 201620822U
- Authority
- CN
- China
- Prior art keywords
- slips
- oil nozzle
- nozzle cover
- wall
- gas well
- 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.)
- Expired - Lifetime
Links
- 239000004576 sand Substances 0.000 claims abstract description 29
- 239000003921 oil Substances 0.000 claims description 77
- 241000239290 Araneae Species 0.000 claims description 34
- 238000012856 packing Methods 0.000 claims description 23
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 3
- 239000007789 gas Substances 0.000 abstract description 33
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 230000015572 biosynthetic process Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 3
- 230000008014 freezing Effects 0.000 abstract description 2
- 238000007710 freezing Methods 0.000 abstract description 2
- 230000000903 blocking effect Effects 0.000 abstract 1
- 239000002343 natural gas well Substances 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 230000007480 spreading Effects 0.000 description 2
- 238000003892 spreading Methods 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 241000282414 Homo sapiens Species 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009960 carding Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B2200/00—Special features related to earth drilling for obtaining oil, gas or water
- E21B2200/02—Down-hole chokes or valves for variably regulating fluid flow
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Lighters Containing Fuel (AREA)
Abstract
The multifunctional sand-prevention underground throttle for the gas well is applied to underground depressurization of the natural gas well of the oil and gas field and control of sand production of the gas well. The lower end of the upper oil nozzle sleeve is in threaded connection with a cylindrical lower oil nozzle sleeve, an air tap is arranged on a step at the top of a central hole of the lower oil nozzle sleeve and is fixed on the step at the top of the central hole of the lower oil nozzle sleeve, a filter cover is fixed at the lower end of the lower oil nozzle sleeve through threads, and a rubber cylinder support is supported on the upper end surface of the filter cover; the cover has the center tube on the outer wall of last nozzle cover, and the center tube is fixed by the pin with last nozzle cover, and the cover has the fishing head on the outer wall of center tube, has the slip seat at fishing head sub-unit connection, and the slip seat cover has the spring in the annular space between slip seat and lower nozzle cover on the outer wall of lower nozzle cover, has hung the slips at the fishing head, and slips lower extreme inner arc face supports extrados contact with the slips. The effect is as follows: the gas well pressure reduction production can be realized, the problem of freezing and blocking of the hydrate is solved, the formation sand production is controlled, and the well opening rate of the gas well is improved.
Description
Technical field
The utility model relates to the exploitation of oil-gas field technical field, and particularly the gas well underground throttle device is the special-purpose underground throttle device of a kind of gas well step-down, stable yields, control gas well formation sand production.
Background technology
In the oil gas field process of construction, because the oil field gas well often produces hydrate, formation sand production, it is undesired to cause the oil field gas well to produce, stop well, closing well, had a strong impact on the ordinary production of oil field gas well and because of formation sand production, ground installation is produced grievous injury, cause ground installation to damage and the pipeline perforation, before not using the utility model, oil field gas well production is not steady, can not reach the gas well output of desired design and, need annotate alcohol, cause oil field gas well cost of production to increase at surface line and oil field gas well down-hole oil tube because pipeline occurs freezing stifled.
At present, the underground throttle device of employing control gas flow is arranged, but do not possess sand control and other functions.
The utility model content
The purpose of this utility model is: provide a kind of gas well multi-functional sand control underground throttle device, carry out throttling in the down-hole, solve gas well step-down production and hydrate and freeze stifled problem, control formation sand production, rate when having improved gas well and driving a well.
The technical solution adopted in the utility model is: the multi-functional sand control underground throttle device of gas well, mainly by fishing head, central tube, the muzzle that oils, slips, slip spider, spring, valve, slips support, down the oil nozzle cover, be equipped with cap and packing element and support and form, it is characterized in that: the muzzle that oils is the cylinder bodily form, and the muzzle that oils has centre bore.Be connected with tubular oil nozzle cover down at the lower end of the muzzle that oils screw thread, step arranged, on the oil nozzle cover centre bore top stage valve is being arranged down at the centre bore top of following oil nozzle cover.Valve is the down-hole natural gas restricting element of using always.The oil lower surface of muzzle is pressed in the top of valve, and valve is fixed on down on the oil nozzle cover centre bore top stage.Lower end screw thread at following oil nozzle cover is fixed with filter bowl.Be supported with a packing element in the upper surface of filter bowl and support, and the centre bore that packing element supports is enclosed within down on the outer wall of oil nozzle cover.It is taper seat that packing element supports the upper end external surface.
Oiling is with central tube on the outer wall of muzzle, central tube and oiling between the muzzle by dowel fixes.There is external screw thread lower end at central tube.On the outer wall of central tube, be with fishing head, be connected with slip spider in the fishing head bottom, slip spider has centre bore, and slip spider is enclosed within down on the outer wall of oil nozzle cover, between slip spider and following oil nozzle cover, annular space is arranged, in the annular space between slip spider and following oil nozzle cover the compression spring is arranged.On the inwall of slip spider lower end, screw thread is arranged, on the internal thread of slip spider lower end, is fixed with annular and is equipped with cap, be equipped with cap sleeve on the outer wall of oil nozzle cover down and the lower surface of spring be pressed in cap top fully.The lower end outer wall of slip spider is inserted in packing element and supports in the centre bore of upper end.The slip spider lower end can slide up and down in the annular space between packing element support and the following oil nozzle cover outer wall.Three rectangular openings are arranged on the fishing head pedestal, be hung with slips respectively in three rectangular openings.Slips lower end intrados supports extrados with slips and contacts.It is cone shape that slips supports extrados.The slips support set is at the external surface of slip spider.Slips supports upwards to slide and can promote three slips and open.
For natural gas under the filter well, laser slotted sand control tube is arranged in the outside of filter bowl, laser slotted sand control tube is that screw thread is fixed on the outer wall of packing element support lower end.
The tapering of the upper end external surface taper seat that described slips supports is between 50～60 degree.The lower end inwall that slips supports has cartridge, and there is taper seat cartridge centre bore lower end, and the tapering of cartridge taper seat is between 60～80 degree.
The multi-functional sand control underground throttle device of gas well operating principle: consult Fig. 1.
When throwing in underground throttle device, the oil gas well does not need kill-job and removes oil pipe, adopt the steel wire operation of well head lubricator and logging truck, the wire rope socket of logging truck is connected weighted lever and seat envelope instrument (logging truck special tool), press down oil muzzle 3 and following oil nozzle cover 10 with seat envelope instrument, and then compression spring 7, load onto an offset nail.At this moment cartridge 11 of the present utility model is in minimum outer diameter, therefore can freely transfer in lubricator and oil pipe.
When underground throttle device arrives design attitude, on carry steel wire, seat envelope instrument and central tube 2 is up, and fishing head 1 and slips 4 are descending, and central tube 2 conical surfaces strut three slips 4 along the slips inner conical surface is up, block tube inner wall, increase upper lifting force again, cut off offset nail, compressed spring 7 discharged elastic force to withstand down oil nozzle cover 10 up with the muzzle 3 that oils this moment, drive packing element and support 13 uply, cartridge 11 spreadings are adjacent to tube inner wall.This moment, three slips 4 just tightly were stuck on the tube inner wall, and cartridge 11 expands under the elastic force effect of spring 7, and external diameter increases, and sealed the annular space of central tube 2 of the present utility model and oil pipe.After proposing seat envelope instrument, this underground throttle device relies on the expanding force of slips 4 and cartridge 11 to hang in the oil pipe.After driving a well, OIH gas through laser slotted sand control tube 15, down oil nozzle cover 10 and oil muzzle 3 from ceramic valve by the time throttling step-down, chock pressure difference acts on down on the oil nozzle cover 10 and the muzzle 3 that oils, produce thrust upwards, driving packing element support 13 continues up, further spreading cartridge 11, the jam-packed tube inner wall.Simultaneously, the oil nozzle cover 10 and the muzzle 3 that oils are up under the cartridge upwards thrust drive that pressure reduction produces about in the of 11, and further tensioner slips 4 tightens tube inner wall.
The beneficial effects of the utility model: the multi-functional sand control underground throttle device of the utility model gas well, can realize that the gas well step-down is produced and solve hydrate freezes stifled problem, control formation sand production, rate when having improved gas well and driving a well.The utility model has compact conformation, and is reasonable in design, easy to operate, do not need to cooperate with dead man or crane, only just can finish throwing, drag for operation with the test carding engine.Subsurface choke length is short, withstand voltage height, and the life-span is long.The multiple switching well still can effectively be worked.Can in steel wire working pulling force scope, finish salvaging, deblocking, discharge and the task of locking, guarantee that steel wire do not break the phenomenon with tap, realize safety, deliver and salvage the multi-functional sand control underground throttle device of gas well effectively.
Description of drawings
Fig. 1 is the multi-functional sand control underground throttle device of a utility model gas well structural profile schematic diagram.
Among the figure, 1. fishing head, 2. central tube, the muzzle that 3. oils, 4. slips, 5. slips retainer ring, 6. slip spider, 7. spring, 8. valve, 9. slips supports, and 10. descends the oil nozzle cover, 11. cartridge, 12. are equipped with cap, and 13. packing elements support, 14. filter bowls, 15. laser slotted sand control tubes.
The specific embodiment
Embodiment 1: with a multi-functional sand control underground throttle device of gas well is example, and the utility model is described in further detail
Consult Fig. 1.The multi-functional sand control underground throttle device of the utility model gas well, mainly by fishing head 1, central tube 2, the muzzle 3 that oils, slips 4, slips retainer ring 5, slip spider 6, spring 7, valve 8, slips support 9, down oil nozzle cover 10, cartridge 11, be equipped with that cap 12, packing element support 13, filter bowl 14 and laser slotted sand control tube 15 form.
The muzzle 3 that oils is the cylinder bodily form, and the muzzle 3 that oils has 11 millimeters centre bore.Lower end screw thread at the muzzle 3 that oils is connected with a tubular cover of oil nozzle down 10, at the centre bore top of following oil nozzle cover 10 stepped hole is arranged, and overlapping on the 10 centre bore top stage holes at following oil nozzle has a valve 8.8 millimeters of valve 8 internal diameters, 16 millimeters of external diameters.The oil lower surface of muzzle 3 is pressed in the top of valve 8, valve 8 is fixed on down oil nozzle overlaps on the 10 centre bore top stage.Respectively there is an O-ring seal at the two ends up and down of valve 8.Lower end external screw thread at following oil nozzle cover 10 is fixed with filter bowl 14.Be supported with a packing element in the upper surface of filter bowl 14 and support 13, and the centre bore of packing element support 13 is enclosed within down on the outer wall of oil nozzle cover 10.It is taper seat that packing element supports 13 upper end external surfaces, and tapering is 75 degree.
Oiling is with a central tube 2 on the outer wall of muzzle 3, central tube 2 and oiling between the muzzle 3 by three dowel fixes.Pin can be cut off.There is external screw thread lower end at central tube 2, and the external screw thread of central tube 2 lower ends connects the inwall upper end of slip spider 6.On the outer wall of central tube 2, be with fishing head 1, be connected with slip spider 6 in fishing head 1 bottom, slip spider 6 has centre bore, slip spider 6 is enclosed within down on the outer wall of oil nozzle cover 10, between slip spider 6 and following oil nozzle cover 10, annular space is arranged, in the annular space between slip spider 6 and following oil nozzle cover 10 compression spring 7 is arranged.On slip spider 6 lower end inwalls, screw thread is arranged, on slip spider 6 lower end internal threads, be fixed with one and be with externally threaded annular to be equipped with cap 12, be equipped with on the outer wall that cap 12 is enclosed within down oil nozzle cover 10 and the lower surface of spring 7 is pressed in and is equipped with cap 12 tops.The lower end outer wall of slip spider 6 is inserted in packing element and supports in the 13 upper end centre bores.Slip spider 6 lower ends can packing element support 13 and following oil nozzle overlap in the annular space between 10 outer walls and slide up and down.On fishing head 1 pedestal, be evenly distributed with three rectangular openings, be hung with slips 4 respectively in three rectangular openings.The annular slips retainer ring 5 that has been threaded from bottom to top on the fishing head 1 lower end outer wall, slips retainer ring 5 plays the effect of stablizing slips 4 below three rectangular openings.Slips 4 lower end intrados support 9 extrados with slips and contact.It is cone shape that slips supports 9 extrados, and the tapering of the upper end external surface taper seat of slips support 9 is 55 degree.The lower end inwall of slips support 9 has cartridge 11, and there is taper seat cartridge 11 centre bore lower ends, and the tapering of cartridge 11 taper seats is 75 degree.Slips support 9 is enclosed within the external surface of slip spider 6.Slips supports 9 and upwards slides and can promote three slips 4 and open.
Laser slotted sand control tube 15 is arranged in the outside of filter bowl 14, and laser slotted sand control tube 15 is that screw thread is fixed on packing element and supports on the 13 lower end outer walls.
Claims (3)
1. multi-functional sand control underground throttle device of gas well, mainly by fishing head (1), central tube (2), the muzzle that oils (3), slips (4), slip spider (6), spring (7), valve (8), slips support (9), down oil nozzle cover (10), be equipped with cap (12) and packing element support (13) is formed, it is characterized in that:
The muzzle (3) that oils is the cylinder bodily form, the muzzle (3) that oils has centre bore, lower end screw thread at the muzzle that oils (3) is connected with tubular oil nozzle cover (10) down, step is arranged at the centre bore top at following oil nozzle cover (10), on oil nozzle cover (10) the centre bore top stage valve (8) is being arranged down, the oil lower surface of muzzle (3) is pressed in the top of valve (8), valve (8) is fixed on down on oil nozzle cover (10) the centre bore top stage, lower end screw thread at following oil nozzle cover (10) is fixed with filter bowl (14), be supported with a packing element in the upper surface of filter bowl (14) and support (13), and the centre bore that packing element supports (13) is enclosed within down on the outer wall of oil nozzle cover (10), and it is taper seat that packing element supports (13) upper end external surface;
Oil and be with central tube (2) on the outer wall of muzzle (3), between central tube (2) and the muzzle that oils (3) by dowel fixes, there is external screw thread lower end at central tube (2), on the outer wall of central tube (2), be with fishing head (1), be connected with slip spider (6) in fishing head (1) bottom, slip spider (6) has centre bore, slip spider (6) is enclosed within down on the outer wall of oil nozzle cover (10), between slip spider (6) and following oil nozzle cover (10), annular space is arranged, in the annular space between slip spider (6) and following oil nozzle cover (10) compression spring (7) is arranged, on the inwall of slip spider (6) lower end, screw thread is arranged, on the internal thread of slip spider (6) lower end, be fixed with annular and be equipped with cap (12), be equipped with on the outer wall that cap (12) is enclosed within down oil nozzle cover (10) and the lower surface of spring (7) is pressed in and is equipped with cap (12) top, the lower end outer wall of slip spider (6) is inserted in packing element and supports in the centre bore of (13) upper end, on fishing head (1) pedestal, three rectangular openings are arranged, be hung with slips (4) in three rectangular openings respectively, slips (4) lower end intrados supports (9) extrados with slips and contacts, it is cone shape that slips supports (9) extrados, and slips supports the external surface that (9) are enclosed within slip spider (6).
2. the multi-functional sand control underground throttle device of gas well according to claim 1 is characterized in that: in the outside of filter bowl (14) laser slotted sand control tube (15) is arranged, laser slotted sand control tube (15) is that screw thread is fixed on the outer wall of packing element support (13) lower end.
3. the multi-functional sand control underground throttle device of gas well according to claim 1 and 2, it is characterized in that: the tapering of the upper end external surface taper seat of described slips support (9) is between 50～60 degree, the lower end inwall that slips supports (9) has cartridge (11), there is taper seat cartridge (11) centre bore lower end, and the tapering of cartridge (11) taper seat is between 60～80 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020128574.4U CN201620822U (en) | 2010-03-10 | 2010-03-10 | Multifunctional sand-proof downhole throttle for gas well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020128574.4U CN201620822U (en) | 2010-03-10 | 2010-03-10 | Multifunctional sand-proof downhole throttle for gas well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201620822U true CN201620822U (en) | 2010-11-03 |
Family
ID=43024278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020128574.4U Expired - Lifetime CN201620822U (en) | 2010-03-10 | 2010-03-10 | Multifunctional sand-proof downhole throttle for gas well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201620822U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104373070A (en) * | 2014-11-12 | 2015-02-25 | 中国石油天然气股份有限公司 | Deblocking mechanism of major diameter slip formula flow controller |
| CN111693322A (en) * | 2020-06-02 | 2020-09-22 | 浙江大学 | No external force osmotic membrane sampler based on contact pin filtration sample |
| CN111693324A (en) * | 2020-06-04 | 2020-09-22 | 浙江大学 | No external force osmotic membrane sampler based on contact pin filtration sample |
-
2010
- 2010-03-10 CN CN201020128574.4U patent/CN201620822U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104373070A (en) * | 2014-11-12 | 2015-02-25 | 中国石油天然气股份有限公司 | Deblocking mechanism of major diameter slip formula flow controller |
| CN111693322A (en) * | 2020-06-02 | 2020-09-22 | 浙江大学 | No external force osmotic membrane sampler based on contact pin filtration sample |
| CN111693322B (en) * | 2020-06-02 | 2021-05-14 | 浙江大学 | No external force osmotic membrane sampler based on contact pin filtration sample |
| CN111693324A (en) * | 2020-06-04 | 2020-09-22 | 浙江大学 | No external force osmotic membrane sampler based on contact pin filtration sample |
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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 |
Granted publication date: 20101103 |
|
| CX01 | Expiry of patent term |