CN105484711A - Rotational flow guide device - Google Patents
Rotational flow guide device Download PDFInfo
- Publication number
- CN105484711A CN105484711A CN201510924413.3A CN201510924413A CN105484711A CN 105484711 A CN105484711 A CN 105484711A CN 201510924413 A CN201510924413 A CN 201510924413A CN 105484711 A CN105484711 A CN 105484711A
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- CN
- China
- Prior art keywords
- guide device
- impeller guide
- seal
- conveyor screw
- cylinder
- 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.)
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Classifications
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- 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
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
Abstract
The invention discloses a rotational flow guide device. A spiral body main body is arranged on the upper portion inside a pre-arranged barrel, a spiral body is arranged on the spiral body main body in a winding mode, a connecting pipe is arranged at the lower end in the pre-arranged barrel, a mandrel is fixedly connected with the lower end of the spiral body main body and arranged in the connecting pipe, the outer surface of the lower portion of the pre-arranged barrel are sleeved with a sealing part and a supporting part, the supporting part is arranged below and matched with the sealing part, a locking barrel is arranged at the lower end of the pre-arranged barrel, an elastic body is arranged at the lower end of the locking barrel, the elastic body is of a hollow structure, and a seat clamping part is arranged at the lower end of the elastic body. By means of the rotational flow guide device, the width of a gap between the rotational flow guide device and the inner wall of an oil pipe can be decreased, the pressure loss rate in the drainage and gas recovery processes can be lowered, and the drainage capability of the rotational flow guide device is further improved.
Description
Technical field
The present invention relates to petroleum and natural gas well development technique field, particularly relate to a kind of impeller guide device.
Background technology
In gas well recovery process, along with the continuous increase of recovery time, stratum energy reduces gradually, and moisture content improves, and in gas liquid two-phase flow process, solution gas very easily produces slippage effect, and lifting difficulty continues to increase.For meeting the requirement of gas well water pumping gas production, the downhole rotational-flow water drainage-gas recovery technology technology developed in recent years, its design fundamentals are moved to pressed on ring film layering fluidised form by the inwall direction eddy flow that the multiphase medium fluid flow state in oil pipe is changed into along well casing by original turbulent vertically upward fluidised form.When biphase gas and liquid flow enters impeller guide device, fluid rotates along eddy flow face, be separated the multiphase medium of different densities simultaneously, the water that density is larger gets rid of to tube wall outermost, water, crude oil, gas ecto-entad distribute, and form layering fluidised form, this fluid gas does not need drop in tow upwards to flow, energy spent by multiphase flow flowing is decreased, reduces pit shaft back pressure.
Impeller guide device is a kind of important tool being applied to downhole rotational-flow water drainage-gas recovery technology technology, for ensure impeller guide device can in oil pipe can smoothly under enter, in actual applications, the conveyor screw maximum outside diameter of existing impeller guide device must be less than more than pipe aperture 4mm, downhole fluid will inevitably some directly through the gap of impeller guide device and tube inner wall, layering fluidised form can not be formed, thus cause the pressure loss in water pumping gas production process large, the problem that drainage capacity is low.
Summary of the invention
The invention provides a kind of impeller guide device, the gap width between impeller guide device and tube inner wall can be reduced, pressure loss rate in water pumping gas production process is minimized, and then improve the drainage capacity of impeller guide device.
Embodiments provide a kind of impeller guide device, comprise preset cylinder, conveyor screw body, conveyor screw, mandrel, tube connector, seal, supporting parts, locking cylinder, elastic body and seat fastener, wherein, described conveyor screw body is arranged on the top of the inside of described preset cylinder, described conveyor screw is wrapped on described conveyor screw body, described tube connector arranges the lower end in described preset cylinder, the lower end of described mandrel and described conveyor screw body is affixed, and described mandrel is arranged in described tube connector, described seal is enclosed within the external surface of the bottom of described preset cylinder, described supporting parts is enclosed within the lower end of described preset cylinder, described supporting parts is arranged on the below of described seal, and described supporting parts and described seal match, described locking cylinder is arranged on the lower end of described preset cylinder, described elastic body is arranged on the lower end of described locking cylinder, and described elastic body is hollow structure, described seat fastener is arranged on described elastomeric lower end,
Wherein, described impeller guide device is dropped in oil pipe, and carry out seat card by described seat fastener, described impeller guide device is made to promote described seal according to the pressure of self gravitation and pressurization and described supporting parts moves downward, described seal is made to be enclosed within described supporting parts, described seal is outwards expanded, thus seals the gap of annular space between described impeller guide device and described tube inner wall.
Optionally, also comprise:
Salvage part, be arranged on the upper end of described conveyor screw body, for by described salvaging part described impeller guide device being dropped into and salvaging described oil pipe.
Optionally, described salvaging part comprises fishing head and fish neck, and described fish neck is arranged on the upper end of described conveyor screw body, and described fishing head is arranged on the upper end of described fish neck.
Optionally, also comprise:
First securing member, connects described conveyor screw body respectively and is connected with described preset cylinder.
Optionally, also comprise:
Pressure balance part, is arranged in the through hole of described locking cylinder.
Optionally, described pressure balance part comprises lock dog, elastic component and fixture, and described fixture is fixed in described locking cylinder, and the front end of described elastic component connects described fixture, the rear end of described elastic component connects described lock dog, and described lock dog and described elastic component are all arranged in described through hole.
Optionally, described lock dog is inclined-plane near the end face of the first end of described mandrel, and inclined-plane upwards, and described lock dog is disc away from the end face of the second end of nearly described mandrel.
Optionally, also comprise:
Second securing member, connects described preset cylinder respectively and is connected with described elastic body.
Optionally, also comprise:
Upper pressing cap, is enclosed within the external surface of the bottom of described preset cylinder, and is arranged on the top of described seal;
Lower pressing cap, is enclosed within the external surface of the bottom of described preset cylinder, and is arranged on the position between described seal and described supporting parts.
Optionally, described seat fastener comprises anchor fluke, steel wire bolt and steel wire buckle, and described anchor fluke is fixed on described elastomeric lower end, and described steel wire bolt is fixed on the bottom of described anchor fluke, and described steel wire buckle is connected with described anchor fluke by described steel wire bolt.
By an embodiment or multiple embodiment, the present invention has following beneficial effect or advantage:
Due to a kind of impeller guide device in the embodiment of the present application, comprise preset cylinder, conveyor screw body, conveyor screw, mandrel, tube connector, seal, supporting parts, locking cylinder, elastic body and seat fastener, described impeller guide device is dropped in oil pipe, and carry out seat card by described seat fastener, described impeller guide device is made to promote described seal according to the pressure of self gravitation and pressurization and described supporting parts moves downward, described seal is made to be enclosed within described supporting parts, described seal is outwards expanded, thus seal the gap of annular space between described impeller guide device and described tube inner wall, so, the gap width between impeller guide device and tube inner wall can be effectively reduced, pressure loss rate in water pumping gas production process is minimized, and then improve the drainage capacity of impeller guide device.
Accompanying drawing explanation
Fig. 1 is the structure chart of answering impeller guide device in the embodiment of the present invention.
In accompanying drawing, associated mark is as follows:
1---preset cylinder, 2---conveyor screw body, 3---conveyor screw, 4---mandrel, 5---tube connector, 6---seal, 7---supporting parts, 8---locking cylinder, 9---elastic body, 10---upper pressing cap, 11---lower pressing cap, 12---fishing head, 13---fish neck, 14---the first securing member, 15---lock dog, 16---elastic component, 17---fixture, 18---the second securing member, 19---anchor fluke, 20---steel wire bolt, 21---steel wire buckle.
Detailed description of the invention
The invention provides a kind of impeller guide device, the gap width between impeller guide device and tube inner wall can be reduced, pressure loss rate in water pumping gas production process is minimized, and then improve the drainage capacity of impeller guide device.
In order to better understand technique scheme, below in conjunction with Figure of description and concrete embodiment, technique scheme is described in detail.
See Fig. 1, embodiments provide a kind of impeller guide device, comprise preset cylinder 1, conveyor screw body 2, conveyor screw 3, mandrel 4, tube connector 5, seal 6, supporting parts 7, locking cylinder 8, elastic body 9 and seat fastener, wherein, conveyor screw body 2 is arranged on the top of the inside of preset cylinder 1, conveyor screw 3 is wrapped on conveyor screw body 2, tube connector 5 arranges the lower end in preset cylinder 1, mandrel 4 is affixed with the lower end of conveyor screw body 2, and mandrel 4 is arranged in tube connector 5, seal 6 and supporting parts 7 are all enclosed within the external surface of the bottom of preset cylinder 1, supporting parts 7 is arranged on the below of seal 6, and supporting parts 7 and seal 6 match, locking cylinder 8 is arranged on the lower end of preset cylinder 1, elastic body 9 is arranged on the lower end of locking cylinder 8, and elastic body 9 is in hollow structure, described seat fastener is arranged on the lower end of elastic body 9,
Wherein, described impeller guide device is dropped in oil pipe, and carry out seat card by described seat fastener, described impeller guide device is made to promote seal 6 according to the pressure of self gravitation and pressurization and supporting parts 7 moves downward, seal 6 is made to be enclosed within supporting parts 7, seal 6 is outwards expanded, thus seals the gap of annular space between described impeller guide device and described tube inner wall.
Wherein, seal 6 is specifically as follows leather cup, further, supporting parts 7 is specifically as follows retainer ring, because seal 6 and supporting parts 7 match, under described impeller guide device promotes according to the pressure of self gravitation and pressurization, promotion seal 6 and supporting parts 7 move down, seal 6 is made to be enclosed within supporting parts 7, thus strut seal 6, seal 6 is expanded to the inwall direction of described oil pipe, thus seal the gap of annular space between described impeller guide device and described tube inner wall, so, the gap width between impeller guide device and tube inner wall can be effectively reduced.
Concrete, described impeller guide device also comprises upper pressing cap 10, is enclosed within the external surface of the bottom of preset cylinder 1, and is arranged on the top of seal 6; Lower pressing cap 11, be enclosed within the external surface of the bottom of preset cylinder 1, and the position be arranged between seal 6 and supporting parts 7, so, under described impeller guide device is promoted according to the pressure of self gravitation and pressurization, preset cylinder 1 promotes upper pressing cap 10, and upper pressing cap 10 promotes seal 6 thereupon, seal 6, under the effect of lower pressing cap 11, makes seal 6 can be enclosed within faster on supporting parts 7.
Concrete, described impeller guide device also comprises salvaging part, be arranged on the upper end of conveyor screw body 2, for dropping in described oil pipe by described salvaging part by described impeller guide device, wherein, described salvaging part comprises fishing head 12 and fish neck 13, fish neck 13 is arranged on the upper end of conveyor screw body 2, and fishing head 12 is arranged on the upper end of fish neck 13, wherein, conveyor screw body 2 and fish neck 13 can be integrated, also can be threaded connection; The radial section of fishing head 12 amasss to be greater than and amasss with the radial section of fish neck 13, be connected with fishing head 12 to facilitate the pulling device connected by wire rope, cable etc., specifically wire rope, cable etc. are connected pulling device, have after anchor fluke blocks fishing head 12 and fish neck 13 in pulling device, then described impeller guide device is put in described oil pipe.
Concrete, conveyor screw body 2 is arranged in preset cylinder 1, conveyor screw body 2 and preset cylinder 1 can be connected respectively by the first securing member 14, guaranteed to make the bonding strength between conveyor screw body 2 and preset cylinder 1, wherein, first securing member 14 is specifically as follows holding screw, conveyor screw body 2 is fixedly connected with preset cylinder 1 by holding screw, and conveyor screw body 2 lower end is provided with mandrel 4, conveyor screw body 2 and mandrel 4 can be threaded connection, so, make conveyor screw body 2 and preset cylinder 1 can carry out synchronous rotary under the effect of mandrel 4, when biphase gas and liquid flow enters described impeller guide device, fluid rotates along the eddy flow face of conveyor screw 3, be separated the multiphase medium of different densities simultaneously, the water that density is larger gets rid of to tube wall outermost, water, crude oil, gas ecto-entad distributes, form layering fluidised form, this fluid gas does not need drop in tow upwards to flow, energy spent by multiphase flow flowing is decreased, can effectively reduce pit shaft back pressure.
Concrete, described impeller guide device also comprises pressure balance part, be arranged in the through hole of locking cylinder 8, wherein, described pressure balance part comprises lock dog 15, elastic component 16 and fixture 17, fixture 17 is fixed in locking cylinder 8, the front end connection fixture 17 of elastic component 16, the rear end of elastic component 16 connects lock dog 15, lock dog 15 and elastic component 16 are all arranged in the through hole of locking cylinder 8, wherein, locking cylinder 8 can offer multiple through hole, and in each through hole, be provided with a pressure balance part, make when the pressure of locking cylinder 8 is greater than the pressure in described oil pipe, promote lock dog 15 to move to the inwall direction of described oil pipe, increase to make the space in locking cylinder 8, and then the pressure reduced in locking cylinder 8, make to keep balancing with the pressure in described oil pipe in locking cylinder 8, reduce the pressure reduction in locking cylinder 8 and in described oil pipe, make because pressure reduction diminishes, the injury of locking cylinder 8 is reduced, improve the application life of locking cylinder 8.
Concrete, lock dog 15 is inclined-plane near the end face of the first end of mandrel 4, and inclined-plane upwards, described lock dog is disc away from the end face of the second end of nearly mandrel 4, because lock dog 15 is inclined-plane near the end face of the first end of mandrel 4, can lock dog 15 when moving to the inwall direction of described oil pipe in the through hole of locking cylinder 8, the spatial volume in locking cylinder 8 can be increased, thus make to make faster to keep balancing with the pressure in described oil pipe in locking cylinder 8.
Concrete, described impeller guide device also comprises the second securing member 18, and connecting mandrel 4 is connected with elastic body 9 respectively, and for being fixedly connected with preset cylinder 1 and elastic body 9, wherein, the second securing member 18 is specifically as follows shear pin.
Concrete, described seat fastener comprises anchor fluke 19, steel wire bolt 20 and steel wire buckle 21, anchor fluke 19 is fixed on the lower end of elastic body 9, steel wire bolt 20 is fixed on the bottom of anchor fluke 19, steel wire buckle 21 is connected with anchor fluke 19 by steel wire bolt 20, so, make described impeller guide device drop into be lowered into precalculated position in described oil pipe time, seat card is carried out by anchor fluke 19, and by steel wire buckle 21, described impeller guide device is locked in described precalculated position, and at this moment due under the self gravitation of described impeller guide device and the pressure effect of pressurizeing to oil pipe, described impeller guide device is continued descending, and the bottom of described impeller guide device has been locked in described precalculated position, at this moment the descending pressure of described impeller guide device can be cushioned by elastic body 9, reduce described impeller guide device break through described precalculated position and continue descending probability, make having higher success rate of the seat card of described impeller guide device.
In actual application, when after gas well liquid loading a period of time, under gas well, hydrops increases, when needing to adopt cyclone, water drainage gas producing technology operation, first described impeller guide device is assembled according to hole condition, conveyor screw body 2 is loaded the inside of preset cylinder 1, then the first securing member 14 is tightened, if tube connector 5 and preset cylinder 1 are not integrated, then tighten the connecting thread that tube connector 5 connects with preset cylinder 1, assemble upper pressing cap 10 successively, seal 6, lower pressing cap 11, supporting parts 7, then in preset cylinder 1, conveyor screw body 2 and mandrel 4 is loaded, then locking cylinder 8 is connected to the lower end of preset cylinder 1, and by lock dog 15, elastic component 16 and fixture 17 load in the through hole in locking cylinder 8, then steel wire buckle 21 is fixed on elastic body 9 by steel wire bolt 20, elastic body 9 is connected to the lower end of locking cylinder 8, and be fixedly connected with elastic body 9 and locking cylinder 8 by the second securing member 18, so, complete the assembling of described impeller guide device, then wire rope is used, the pulling device that cable etc. connect is connected with fishing head 12, specifically by wire rope, cables etc. connect pulling device, have after anchor fluke blocks fishing head 12 and fish neck 13 in pulling device, then described impeller guide device is put in described oil pipe, described impeller guide device is by anchor fluke 20 card, preset cylinder 1 on described impeller guide device promotes upper pressing cap 10, seal 6 and retainer ring 12 move downward, so, under described impeller guide device is promoted according to the pressure of self gravitation and pressurization, preset cylinder 1 promotes upper pressing cap 10, upper pressing cap 10 promotes seal 6 thereupon, seal 6 is under the effect of lower pressing cap 11, seal 6 can be enclosed within supporting parts 7 faster, thus seal the gap of annular space between described impeller guide device and tube inner wall, such presetting system impeller guide device can make downhole fluid all by impeller guide device, presetting system impeller guide device makes the gas-liquid of down-hole output constantly rotate along eddy flow face and constantly be separated, thus realize improving gas well drainage capacity, reduce tubing pressure loss.
By an embodiment or multiple embodiment, the present invention has following beneficial effect or advantage:
Due to a kind of impeller guide device in the embodiment of the present application, comprise preset cylinder, conveyor screw body, conveyor screw, mandrel, tube connector, seal, supporting parts, locking cylinder, elastic body and seat fastener, described impeller guide device is dropped in oil pipe, and carry out seat card by described seat fastener, described impeller guide device is made to promote described seal according to the pressure of self gravitation and pressurization and described supporting parts moves downward, described seal is made to be enclosed within described supporting parts, described seal is outwards expanded, thus seal the gap of annular space between described impeller guide device and described tube inner wall, so, the gap width between impeller guide device and tube inner wall can be effectively reduced, pressure loss rate in water pumping gas production process is minimized, and then improve the drainage capacity of impeller guide device.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.Apparent, defined herein General Principle will be made for those skilled in the art when not departing from the spirit or scope of invention, can to realize in other embodiments the multiple amendment of these embodiments.Therefore, the present invention can not be limited and these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and novel features.
Claims (10)
1. an impeller guide device, it is characterized in that, comprise preset cylinder, conveyor screw body, conveyor screw, mandrel, tube connector, seal, supporting parts, locking cylinder, elastic body and seat fastener, wherein, described conveyor screw body is arranged on the top of the inside of described preset cylinder, described conveyor screw is wrapped on described conveyor screw body, described tube connector arranges the lower end in described preset cylinder, the lower end of described mandrel and described conveyor screw body is affixed, and described mandrel is arranged in described tube connector, described seal is enclosed within the external surface of the bottom of described preset cylinder, described supporting parts is enclosed within the lower end of described preset cylinder, described supporting parts is arranged on the below of described seal, and described supporting parts and described seal match, described locking cylinder is arranged on the lower end of described preset cylinder, described elastic body is arranged on the lower end of described locking cylinder, and described elastic body is hollow structure, described seat fastener is arranged on described elastomeric lower end,
Wherein, described impeller guide device is dropped in oil pipe, and carry out seat card by described seat fastener, described impeller guide device is made to promote described seal according to the pressure of self gravitation and pressurization and described supporting parts moves downward, described seal is made to be enclosed within described supporting parts, described seal is outwards expanded, thus seals the gap of annular space between described impeller guide device and described tube inner wall.
2. impeller guide device as claimed in claim 1, is characterized in that, also comprise:
Salvage part, be arranged on the upper end of described conveyor screw body, for by described salvaging part described impeller guide device being dropped into and salvaging described oil pipe.
3. impeller guide device as claimed in claim 2, it is characterized in that, described salvaging part comprises fishing head and fish neck, and described fish neck is arranged on the upper end of described conveyor screw body, and described fishing head is arranged on the upper end of described fish neck.
4. impeller guide device as claimed in claim 1, is characterized in that, also comprise:
First securing member, connects described conveyor screw body respectively and is connected with described preset cylinder.
5. impeller guide device as claimed in claim 1, is characterized in that, also comprise:
Pressure balance part, is arranged in the through hole of described locking cylinder.
6. impeller guide device as claimed in claim 5, it is characterized in that, described pressure balance part comprises lock dog, elastic component and fixture, described fixture is fixed in described locking cylinder, the front end of described elastic component connects described fixture, the rear end of described elastic component connects described lock dog, and described lock dog and described elastic component are all arranged in described through hole.
7. impeller guide device as claimed in claim 6, it is characterized in that, described lock dog is inclined-plane near the end face of the first end of described mandrel, and inclined-plane upwards, and described lock dog is disc away from the end face of the second end of nearly described mandrel.
8. impeller guide device as claimed in claim 1, is characterized in that, also comprise:
Second securing member, connects described mandrel respectively and is connected with described elastic body.
9. impeller guide device as claimed in claim 1, is characterized in that, also comprise:
Upper pressing cap, is enclosed within the external surface of the bottom of described preset cylinder, and is arranged on the top of described seal;
Lower pressing cap, is enclosed within the external surface of the bottom of described preset cylinder, and is arranged on the position between described seal and described supporting parts.
10. impeller guide device as claimed in claim 1, it is characterized in that, described seat fastener comprises anchor fluke, steel wire bolt and steel wire buckle, described anchor fluke is fixed on described elastomeric lower end, described steel wire bolt is fixed on the bottom of described anchor fluke, and described steel wire buckle is connected with described anchor fluke by described steel wire bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510924413.3A CN105484711B (en) | 2015-12-14 | 2015-12-14 | A kind of impeller guide device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510924413.3A CN105484711B (en) | 2015-12-14 | 2015-12-14 | A kind of impeller guide device |
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| Publication Number | Publication Date |
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| CN105484711A true CN105484711A (en) | 2016-04-13 |
| CN105484711B CN105484711B (en) | 2018-01-02 |
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| CN201510924413.3A Active CN105484711B (en) | 2015-12-14 | 2015-12-14 | A kind of impeller guide device |
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Cited By (3)
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| CN107664022A (en) * | 2016-07-29 | 2018-02-06 | 中国石油天然气股份有限公司 | It is vortexed guiding device |
| CN111577207A (en) * | 2020-05-14 | 2020-08-25 | 大庆油田有限责任公司 | Horizontal gas well is with interior spiral drainage instrument of oil pipe |
| CN114114569A (en) * | 2021-11-11 | 2022-03-01 | 山东省信息产业服务有限公司 | Waterproof and antifreezing pipeline optical cable |
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| CN111577207A (en) * | 2020-05-14 | 2020-08-25 | 大庆油田有限责任公司 | Horizontal gas well is with interior spiral drainage instrument of oil pipe |
| CN111577207B (en) * | 2020-05-14 | 2022-06-10 | 大庆油田有限责任公司 | Spiral drainage tool in oil pipe for horizontal gas well |
| CN114114569A (en) * | 2021-11-11 | 2022-03-01 | 山东省信息产业服务有限公司 | Waterproof and antifreezing pipeline optical cable |
| CN114114569B (en) * | 2021-11-11 | 2023-08-22 | 山东省信息产业服务有限公司 | Waterproof and antifreezing pipeline optical cable |
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| Publication number | Publication date |
|---|---|
| CN105484711B (en) | 2018-01-02 |
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