CN204140045U - Deep layer super heavy oil recovery-mixing light oil and wellbore electric heating compound viscosity reduction lifting device - Google Patents
Deep layer super heavy oil recovery-mixing light oil and wellbore electric heating compound viscosity reduction lifting device Download PDFInfo
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- CN204140045U CN204140045U CN201420586802.0U CN201420586802U CN204140045U CN 204140045 U CN204140045 U CN 204140045U CN 201420586802 U CN201420586802 U CN 201420586802U CN 204140045 U CN204140045 U CN 204140045U
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Abstract
A kind of deep layer super heavy oil recovery-mixing light oil and wellbore electric heating compound viscosity reduction lifting device, comprising: overground part and underground part.The oil storage tank of described overground part is provided with two way valve, enters tank valve, carry out fuel tap door, two way valve is connected with oil pump import by pipeline, enter tank valve, enter well valve and screw type oil delivery side of pump and connect, enter well valve to connect with sleeve gate, switch board is connected by the hollow polished rod of cable with well head top.In the oil pipe lower going-into-well setting of casing of described underground part, upper suspension is on well head, and bottom is by tubing anchor and sleeve pipe grappling, and in oil pipe, oil well pump, sucker rod, heating sucker rod connect successively from bottom to top, the top of heating sucker rod is connected with hollow polished rod, and cable is connected with heating sucker rod by hollow polished rod.The utility model is applicable to deep layer super heavy oil recovery, is heated improve reducing thick oil viscosity effect by mixing light oil and electric heating rod, reduces cost of production, increases crude output.
Description
Technical field
the utility model relates to oil field deep layer super heavy oil recovery technology, specifically a kind of deep layer super heavy oil recovery-mixing light oil and wellbore electric heating compound viscosity reduction lifting device.
Background technology
gudao oilfield cultivate Seat, super-heavy oil deposit mainly comprise cultivate west east three sections, the hollow dune shape in s_4 formation Ji Sanhe village, reserves 2800-4500 × 10
4
t.Three sections, its Middle East is deep layer middle and high infiltration viscous crude-special thick oil; Husky three-s_4 formation is ultra-deep layer low porosity and low permeability viscous crude-special thick oil-super-viscous oil, oil in place 2500-4000 × 10
4
t, reservoir buried depth 2000-2800m, viscosity of crude all at 10000mPa.s(50 DEG C, stock tank oil viscosity) more than, particularly the hollow dune shape viscosity of thickened oil in San He village is more than 50000mPa.s, cultivates 119 viscous crude oil density 1.0722g/cm
3
; When 50 DEG C, stock tank oil viscosity is more than 200000mPa.s, mobility extreme difference.Spy, super-viscous oil colloid, asphalt content high (cultivating 119 well viscous crude colloids, asphalt content 44.2%), temperature sensitivity is strong.Crude oil is behind inflow shaft bottom, stratum, and along with temperature, pressure reduce, the factor of crude oil deaeration, viscosity of crude significantly raises, and causes lifting difficulty large.Special, super-viscous oil easy produced problem in process of production: one is that viscosity is high, and sucker rod running resistance is large, easily occur in lifting process polished rod slow under the even phenomenon such as rod parting.Two be due to special, super-viscous oil temperature sensitivity strong, once stop well, easily occurs that viscous crude coagulates pipe phenomenon, cannot again drive a well, and can only even occur that oil well such as to scrap at the problem by upper operation.
Summary of the invention
the purpose of this utility model is exactly in view of the foregoing defects the prior art has, provides a kind of deep layer super heavy oil recovery-mixing light oil and wellbore electric heating compound viscosity reduction lifting device.
technical solutions of the utility model comprise: overground part and underground part, overground part origin fuel tap door, oil storage tank, two way valve, enter tank valve, oil pump, enter well valve, sleeve gate, hollow polished rod, cable, switch board, well head composition; Underground part is made up of oil pipe, heating sucker rod, sucker rod, tubing anchor, oil well pump; The overground part oil storage tank of described deep layer super heavy oil recovery-mixing light oil and wellbore electric heating compound viscosity reduction lifting device is provided with two way valve, enters tank valve, carry out fuel tap door, two way valve is connected with oil pump import by pipeline, enter tank valve, enter well valve and connect with oily delivery side of pump, enter well valve to connect with sleeve gate, switch board is connected by the hollow polished rod of cable with well head top.
in the oil pipe lower going-into-well setting of casing of the underground part in above-mentioned deep layer super heavy oil recovery-mixing light oil and wellbore electric heating compound viscosity reduction lifting device, upper suspension is on well head, bottom is by tubing anchor and sleeve pipe grappling, in oil pipe, oil well pump, sucker rod, heating sucker rod connect successively from bottom to top, and the top of heating sucker rod is connected with hollow polished rod.
oil storage tank in above-mentioned deep layer super heavy oil recovery-mixing light oil and wellbore electric heating compound viscosity reduction lifting device has heating and heat preserving function.
oil pump in above-mentioned deep layer super heavy oil recovery-mixing light oil and wellbore electric heating compound viscosity reduction lifting device adopts screw pump or plunger displacement pump.
above-mentioned deep layer super heavy oil recovery-mixing light oil is connected with heating sucker rod by hollow polished rod with the cable in wellbore electric heating compound viscosity reduction lifting device.
oil pump in above-mentioned deep layer super heavy oil recovery-mixing light oil and wellbore electric heating compound viscosity reduction lifting device is by the self-produced thin oil of series of strata on this oil field in oil storage tank, thin oil 50 DEG C of viscosity lower than 200mPa.s, injected near oil sets annular space to oil reservoir by sleeve valve, and auxiliary electrical adds bar heating.Mixing light oil amount is according to oil well productivity, viscous crude, thin oil physical property, viscosity characteristics are determined, thin oil: viscous crude mass ratio is between 1 ~ 1.5:1, by oil well pump, oil reservoir viscous crude is mixed automatically with thin oil, reduce viscosity of thickened oil, extract ground out through oil pipe, the electrical heating degree of depth and temperature are determined according to blending oil viscosity-temperature curve, meet lifting demand.
the beneficial effects of the utility model are: be applicable to deep layer super heavy oil recovery, are heated and improve reducing thick oil viscosity effect, realize deep layer super heavy oil recovery by mixing light oil and electric heating rod, reduce cost of production, increase crude output.
Accompanying drawing explanation
fig. 1-the utility model process structure schematic diagram.
in accompanying drawing, 1. carry out fuel tap door, 2. oil storage tank, 3. two way valve, 4. enter tank valve, 5. oil pump, 6. enter well valve, 7. sleeve gate, 8. hollow polished rod, 9. cable, 10. switch board, 11. well heads, 12. oil pipes, 13. heating sucker rods, 14. sucker rods, 15. tubing anchors, 16. oil well pumps, 17. sleeve pipes, 18 oil reservoirs, 19. artificial bottom of a well well heads.
Detailed description of the invention
below in conjunction with accompanying drawing, the utility model is described in further detail:
shown in accompanying drawing, deep layer super heavy oil recovery-mixing light oil and wellbore electric heating compound viscosity reduction lifting device, comprising: overground part and underground part.Overground part origin fuel tap door 1, oil storage tank 2, two way valve 3, enter tank valve 4, oil pump 5, enter well valve 6, sleeve gate 7, hollow polished rod 8, cable 9, switch board 10, well head 11 form.Underground part is made up of oil pipe 12, heating sucker rod 13, sucker rod 14, tubing anchor 15, oil well pump 16.The oil storage tank 2 that described overground part has heating and heat preserving function is provided with two way valve 3, enters tank valve 4, carry out fuel tap door 1, two way valve 3 is connected with screw type oil pump 5 import by pipeline, enter tank valve 4, enter well valve 6 and connect with the outlet of screw type oil pump 5, enter well valve 6 to connect with sleeve gate 7, switch board 10 is connected by the hollow polished rod 8 of cable 9 with well head 11 top.In the oil pipe 12 lower going-into-well setting of casing 17 of described underground part, upper suspension is on well head 11, bottom is by tubing anchor 15 and sleeve pipe 17 grappling, in oil pipe 12, oil well pump 16, sucker rod 14, heating sucker rod 13 connect successively from bottom to top, the top of heating sucker rod 13 is connected with hollow polished rod 8, and cable 9 is connected with heating sucker rod 13 by hollow polished rod 8.
embodiment 1: Gudao oilfield is cultivated 119 wells and bored chance Es33 layer, oil reservoir buried depth 2257.0 ~ 2266.0m, under 80 DEG C of conditions, ground dehydration degassed crude viscosity 26499mPa.s; Cultivating after 626 pieces of thin oils and 119 viscous crude ratios of cultivating reach 1:1, is 500mPa.s 70 DEG C of miscella viscosity.By optimizing, this well is implemented sleeve pipe injection and is cultivated 626 pieces of thin oils, mixing rare ratio is 1:1, and according to cultivating 119 well oil well outputs, thin oil injection rate is 5 ~ 6t/d, electrical heating power 100kw, electrical heating degree of depth 1200m, normally produces, current wellhead temperature 80 DEG C after driving a well in May, 2013 always, Liquid output 8t/d, oil production 5t/d.
embodiment 2: Gudao oilfield cultivates 119-5 well perforation ES32 layer, reservoir depth is 2292 ~ 2307m, by optimizing, this well is implemented sleeve pipe injection and is cultivated 626 pieces of thin oils, and mixing rare ratio is 1:1, according to cultivating 119-5 well oil well output, thin oil injection rate is 5 ~ 7t/d, and when mixing rare rear well head mixed crude 70 DEG C, viscosity is 670mPa.s, and mixing rare degree of depth is 2200m, electrical heating power 80 kw, electrical heating degree of depth 1300m.Normally produce after in August, 2014 drives a well, current wellhead temperature 70 DEG C, Liquid output 7.5m always
3
/ d, oil production 5.5t/d.
Claims (6)
1. deep layer super heavy oil recovery-mixing light oil and wellbore electric heating compound viscosity reduction lifting device, comprise: overground part and underground part, overground part origin fuel tap door (1), oil storage tank (2), two way valve (3), enter tank valve (4), oil pump (5), enter well valve (6), sleeve gate (7), hollow polished rod (8), cable (9), switch board (10), well head (11) composition; Underground part is made up of oil pipe (12), heating sucker rod (13), sucker rod (14), tubing anchor (15), oil well pump (16); It is characterized in that: the overground part oil storage tank (2) of described deep layer super heavy oil recovery-mixing light oil and wellbore electric heating compound viscosity reduction lifting device is provided with two way valve (3), enters tank valve (4), carry out fuel tap door (1), two way valve (3) is connected with oil pump (5) import by pipeline, enter tank valve (4), enter well valve (6) and connect with the outlet of oil pump (5), enter well valve (6) to connect with sleeve gate (7), switch board (10) is connected with the hollow polished rod (8) on well head (11) top by cable (9).
2. deep layer super heavy oil recovery-mixing light oil according to claim 1 and wellbore electric heating compound viscosity reduction lifting device, it is characterized in that: in oil pipe (12) the lower going-into-well setting of casing (17) of described underground part, upper suspension is on well head (11), bottom is by tubing anchor (15) and sleeve pipe (17) grappling, in oil pipe (12), oil well pump (16), sucker rod (14), heating sucker rod (13) connect successively from bottom to top, and the top of heating sucker rod (13) is connected with hollow polished rod (8).
3. deep layer super heavy oil recovery-mixing light oil according to claim 1 and wellbore electric heating compound viscosity reduction lifting device, is characterized in that: described oil storage tank (2) has heating and heat preserving function.
4. deep layer super heavy oil recovery-mixing light oil according to claim 1 and wellbore electric heating compound viscosity reduction lifting device, is characterized in that: described oil pump (5) adopts screw pump.
5. the deep layer super heavy oil recovery-mixing light oil according to claim 1 or 4 and wellbore electric heating compound viscosity reduction lifting device, is characterized in that: described oil pump (5) or employing plunger displacement pump.
6. deep layer super heavy oil recovery-mixing light oil according to claim 1 and 2 and wellbore electric heating compound viscosity reduction lifting device, is characterized in that: described cable (9) is connected with heating sucker rod (13) by hollow polished rod (8).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420586802.0U CN204140045U (en) | 2014-10-13 | 2014-10-13 | Deep layer super heavy oil recovery-mixing light oil and wellbore electric heating compound viscosity reduction lifting device |
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| CN201420586802.0U CN204140045U (en) | 2014-10-13 | 2014-10-13 | Deep layer super heavy oil recovery-mixing light oil and wellbore electric heating compound viscosity reduction lifting device |
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| CN204140045U true CN204140045U (en) | 2015-02-04 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104775793A (en) * | 2015-03-16 | 2015-07-15 | 浙江理工大学 | Oil extracting device |
| CN104806207A (en) * | 2015-03-16 | 2015-07-29 | 浙江理工大学 | Collecting device for thick oil in deep sea |
| CN104818973A (en) * | 2015-03-16 | 2015-08-05 | 浙江理工大学 | High-viscosity oil pool extractor |
| CN104818966A (en) * | 2015-03-16 | 2015-08-05 | 浙江理工大学 | Recovery well |
| CN104818974A (en) * | 2015-03-16 | 2015-08-05 | 浙江理工大学 | Viscosity reduction collection well |
| CN104818976A (en) * | 2015-03-16 | 2015-08-05 | 浙江理工大学 | Electric heat collector |
| CN104832147A (en) * | 2015-03-16 | 2015-08-12 | 浙江理工大学 | Oil reservoir collector |
| CN106437655A (en) * | 2016-11-03 | 2017-02-22 | 中国石油化工股份有限公司 | Crude oil viscosity reducer effect evaluation device and method |
| CN106894798A (en) * | 2017-04-07 | 2017-06-27 | 中国石油天然气股份有限公司 | Oil recovery system and oil recovery method |
-
2014
- 2014-10-13 CN CN201420586802.0U patent/CN204140045U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104775793A (en) * | 2015-03-16 | 2015-07-15 | 浙江理工大学 | Oil extracting device |
| CN104806207A (en) * | 2015-03-16 | 2015-07-29 | 浙江理工大学 | Collecting device for thick oil in deep sea |
| CN104818973A (en) * | 2015-03-16 | 2015-08-05 | 浙江理工大学 | High-viscosity oil pool extractor |
| CN104818966A (en) * | 2015-03-16 | 2015-08-05 | 浙江理工大学 | Recovery well |
| CN104818974A (en) * | 2015-03-16 | 2015-08-05 | 浙江理工大学 | Viscosity reduction collection well |
| CN104818976A (en) * | 2015-03-16 | 2015-08-05 | 浙江理工大学 | Electric heat collector |
| CN104832147A (en) * | 2015-03-16 | 2015-08-12 | 浙江理工大学 | Oil reservoir collector |
| CN104818976B (en) * | 2015-03-16 | 2017-12-22 | 浙江理工大学 | A kind of electric heating collector |
| CN104818974B (en) * | 2015-03-16 | 2017-12-22 | 浙江理工大学 | The glutinous production wells of one kind drop |
| CN106437655A (en) * | 2016-11-03 | 2017-02-22 | 中国石油化工股份有限公司 | Crude oil viscosity reducer effect evaluation device and method |
| CN106894798A (en) * | 2017-04-07 | 2017-06-27 | 中国石油天然气股份有限公司 | Oil recovery system and oil recovery method |
| CN106894798B (en) * | 2017-04-07 | 2019-05-07 | 中国石油天然气股份有限公司 | Oil recovery system and oil recovery method |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150204 Termination date: 20151013 |
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| EXPY | Termination of patent right or utility model |