CN101881144A - Heating body for viscosity breakback of oil production well fluid - Google Patents
Heating body for viscosity breakback of oil production well fluid Download PDFInfo
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- CN101881144A CN101881144A CN 201010193565 CN201010193565A CN101881144A CN 101881144 A CN101881144 A CN 101881144A CN 201010193565 CN201010193565 CN 201010193565 CN 201010193565 A CN201010193565 A CN 201010193565A CN 101881144 A CN101881144 A CN 101881144A
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- heating body
- well
- stainless steel
- breakback
- viscosity
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Abstract
The invention relates to a heating body for viscosity breakback of oil production well fluid, comprising a metal heating core with an insulating sheath. The heating body is characterized in that the outer part of the whole heating body is wrapped with stainless steel belts to form a stainless steel pipe, and welding is carried out at the seams. The heating body can bear the self weight of more than 500kg, has strong bearing capability without disconnection fault, has large rigidity so as to be capable of descending to several thousand meters in well depth, has continuous descending into the well without obstacles so as to be convenient in construction, has corrosion resistance, difficult wear and safe and reliable use, adopts a welding sealing piece for sealing outlet lines at a wellhead so as to have good sealing effect, and also has low cost.
Description
Technical field
The invention belongs to a kind of heater of producing well liquid viscosity reduction, particularly a kind of calandria of producing well liquid viscosity reduction.
Background technology
The ratio that belongs to Gao Ning, high cured oil well in the present domestic oil field is bigger, so viscosity reduction, to separate cured be to need one of key subject that solves in the petroleum recovering production.The pumping and washing process of hot water is taked to inject to oilbearing stratum in the oil field more now, and there is following shortcoming and defect in this method: the hot water that needs are tens cubes injects underground, and polluted reservoir also will be drawn back ground, big energy-consuming with injecting underground water after the heating again; Also have a kind of method that in well, is lowered to heating cable, realize separating cured, viscosity reduction with the winding shaft liquid temp.Heating cable is provided with the METAL HEATING PROCESS core of tape insulation crust, and the gauze wire cloth sheath externally is set, and need because the gauze wire cloth sheath is a flexible body, easily is obstructed when going into the well, piles up with heating cable along reaching in the well casing below the well depth km during construction, and it is cumbersome to construct; The gauze wire cloth sheath does not have the effect of protection cable, and whole cable is taked in a bit fixing suspension type of well head simultaneously, and the total weight of cable all concentrates on well head locking place, and the cable extension easily causes disconnection fault; In oil pipe, be subjected to the impact of oil stream, be in the wriggling state and beat tube inner wall, easily impaired, reduction of service life; Egress line is in well head place sealing difficulty, often leakage of oil.
Summary of the invention
The calandria that the purpose of this invention is to provide a kind of producing well liquid viscosity reduction, carrying own wt ability is strong, and no disconnection fault can be down to the thousands of rice of well depth; Go into the well continuously and be not hampered easy construction; Corrosion-resistant, rapid wear is not safe and reliable; Egress line is at well head place sealing employing welded seal spare, good sealing effect; Cost is low.
Technical scheme of the present invention is as follows: it comprises the METAL HEATING PROCESS core of tape insulation crust, it is characterized in that: wrap tightly stainless steel band in integral outer and form stainless steel tube, weld at seam crossing.
Good effect of the present invention is: 1, can carry self weight more than 500 kilograms, supporting capacity is strong, no disconnection fault; 2, rigidity is big, can be down to the thousands of rice of well depth; Go into the well continuously and be not hampered easy construction; 3, corrosion-resistant, rapid wear is not safe and reliable; 4, egress line is at well head place sealing employing welded seal spare, good sealing effect; 5, cost is low.
Description of drawings
Fig. 1 is structural representation of the present invention (coiling state).
Fig. 2 is the straight configuration schematic diagram of going into the well of the present invention.
Fig. 3 is the generalized section of Fig. 2.
The specific embodiment
See Fig. 1-3, concrete structure is as follows: three copper heating cores 3 are set, and the outside of every heating core coats the poly-third ethene insulation sheath 4, wraps tightly stainless steel band in integral outer and forms stainless steel tube 1, adopts the welding of low-temperature welding technology at seam 2 places.
Claims (1)
1. the calandria of a producing well liquid viscosity reduction, it comprises the METAL HEATING PROCESS core of tape insulation crust, it is characterized in that: wrap tightly stainless steel band in integral outer and form stainless steel tube, weld at seam crossing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010193565 CN101881144A (en) | 2010-06-08 | 2010-06-08 | Heating body for viscosity breakback of oil production well fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010193565 CN101881144A (en) | 2010-06-08 | 2010-06-08 | Heating body for viscosity breakback of oil production well fluid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101881144A true CN101881144A (en) | 2010-11-10 |
Family
ID=43053264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010193565 Pending CN101881144A (en) | 2010-06-08 | 2010-06-08 | Heating body for viscosity breakback of oil production well fluid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101881144A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103147733A (en) * | 2013-03-12 | 2013-06-12 | 中国石油天然气股份有限公司 | Windable electric ignition and monitoring system for in-situ combustion |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030037927A1 (en) * | 2001-08-27 | 2003-02-27 | Dalrymple Larry V. | Heater cable and method for manufacturing |
| CN201753596U (en) * | 2010-06-08 | 2011-03-02 | 沈阳新城石油机械制造有限公司 | Heating piece for oil extraction well fluid viscosity reduction |
-
2010
- 2010-06-08 CN CN 201010193565 patent/CN101881144A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030037927A1 (en) * | 2001-08-27 | 2003-02-27 | Dalrymple Larry V. | Heater cable and method for manufacturing |
| US20040163801A1 (en) * | 2001-08-27 | 2004-08-26 | Dalrymple Larry V. | Heater Cable and method for manufacturing |
| CN201753596U (en) * | 2010-06-08 | 2011-03-02 | 沈阳新城石油机械制造有限公司 | Heating piece for oil extraction well fluid viscosity reduction |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103147733A (en) * | 2013-03-12 | 2013-06-12 | 中国石油天然气股份有限公司 | Windable electric ignition and monitoring system for in-situ combustion |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20101110 |