CN202745816U - Paraffin removal pipe column of flowing well - Google Patents
Paraffin removal pipe column of flowing well Download PDFInfo
- Publication number
- CN202745816U CN202745816U CN 201220397845 CN201220397845U CN202745816U CN 202745816 U CN202745816 U CN 202745816U CN 201220397845 CN201220397845 CN 201220397845 CN 201220397845 U CN201220397845 U CN 201220397845U CN 202745816 U CN202745816 U CN 202745816U
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- CN
- China
- Prior art keywords
- pipe column
- paraffin removal
- well
- oil pumping
- double hollow
- 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 - Fee Related
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Abstract
The utility model provides a paraffin removal pipe column of a flowing well, and the paraffin removal pipe column is applied to paraffin removal of the flowing well in an oil field. The paraffin removal pipe column comprises an underground oil pipe column and a sucker rod string, wherein the underground oil pipe column is fed into the flowing well and has a structure as follows: the lower end of a heavy weight tubing is connected with a horn mouth which is positioned at the upper part of an oil layer, and the sucker rod string is fed into the underground oil pipe column; the sucker rod string has a structure as follows: the lower ends of two hollow sucker rods are connected with internal and external circulative communicating vessels, and the mouth of the well and the upper ends of the hollow sucker rods are connected with a tee joint for the two hollow sucker rods; the inlets of the tee joint for the two hollow sucker rods are connected with a hot water outlet pipe of a ground heating cycle system; and the outlet of the tee joint for the two hollow sucker rods is connected with a backwater inlet pipe of the ground heating cycle system. The paraffin removal pipe column provided by the utility model has the effects of reducing the wax precipitation of the flowing well so as to achieve continuous and automatic paraffin removal, and avoiding the accident that a steel wire rope, a paraffin cutter or a plummet drops and is clamped in the well during manual paraffin removal.
Description
Technical field
The utility model relates to the oil field development technical field, and particularly a kind of flowing well wax removal tubing string is that a kind of flowing well does not need regularly artificial tubing string with the paraffin scraper wax removal.
Background technology
At present, in the exploration and development process in oil field, the flowing well wax removal is to use electronic or manual paraffin hoist, utilize wire rope with paraffin scraper, plummet by manually carrying out wax removal.This wax removal mode 2～3 people could finish, and sometimes causes wire rope, paraffin scraper or plummet to fall to be stuck in the interior accident of well.
The utility model content
The purpose of this utility model is: a kind of flowing well wax removal tubing string is provided, solves the problem of the automatic wax removal of flowing well.Overcome wire rope with the paraffin scraper wax removal, cause wire rope, paraffin scraper, plummet to fall to be stuck in the interior accident of well.
The technical solution adopted in the utility model is: flowing well wax removal tubing string comprises downhole oil tubing string and rod string.It is characterized in that: tubing string under the lower going-into-well in flowing well, the structure of downhole oil tubing string is: the lower end at heavy wall tubing is connected with horn mouth, and bell-mouthed position is on the top of oil reservoir; Be lowered to rod string in the downhole oil tubing string, the structure of rod string is: the lower end of double hollow oil pumping rod is connected with the inner-outer circulation linker; Be connected with the double hollow oil pumping rod threeway at well head and in the upper end of double hollow oil pumping rod.The double hollow oil pumping rod threeway import of double hollow oil pumping rod threeway connects the hot water outlet pipe of ground heating circulation system, the double hollow oil pumping rod threeway outlet of double hollow oil pumping rod threeway, the backwater inlet tube of connection ground heating circulation system.
The operating principle of summary flowing well wax removal tubing string: consult Fig. 1.Circulatory mediator after the heating of ground heating circulation system enters inner tube and inner-outer circulation linker 5 through double hollow oil pumping rod 4 from double hollow oil pumping rod threeway import 2; By entering the outer tube of double hollow oil pumping rod 4 behind the inner-outer circulation linker 5, turn back to the ground heating circulation system finally by crossing double hollow oil pumping rod threeway outlet 3.Circulatory mediator after the heating improves the temperature of downhole crude to the outer tube of heat transferred double hollow oil pumping rod 4 and heating in crude oil, thereby reaches the purpose that reduces wax deposition.
The beneficial effects of the utility model: the utility model flowing well wax removal tubing string, can reduce the flowing well wax deposition, reach continuously automatically wax removal, avoided artificial wax removal sometimes to cause wire rope, paraffin scraper or plummet to fall to be stuck in the interior accident of well, saved simultaneously artificial.On-the-spot more than 10 mouthfuls of flowing wells are used, and have satisfied the requirement of the continuous wax removal of flowing well.
Description of drawings
Fig. 1 is the utility model flowing well wax cleaning tube rod structure schematic diagram.
Among the figure, the threeway of 1-double hollow oil pumping rod, 2-double hollow oil pumping rod threeway import, 3-double hollow oil pumping rod threeway outlet, 4-double hollow oil pumping rod, 5-double hollow oil pumping rod inner-outer circulation linker, the heavy wall tubing of 6-89mm, 7-horn mouth.
The specific embodiment
Embodiment 1: take a flowing well wax removal tubing string as example, the utility model is described in further detail.
Consult Fig. 1.The utility model flowing well wax removal tubing string comprises downhole oil tubing string and rod string.Tubing string under the lower going-into-well in flowing well, the structure of downhole oil tubing string is: between be connected with horn mouth 7 for the lower end of 89mm heavy wall tubing 6.Diameter is that the length of 89mm heavy wall tubing 6 is 2500m.The position of horn mouth 7 is on the top of oil reservoir.Be lowered to rod string in the downhole oil tubing string, the structure of rod string is: diameter is that the lower end of the double hollow oil pumping rod 4 of 42mm is connected with inner-outer circulation linker 5.Diameter is that double hollow oil pumping rod 4 length of 42mm are 1200m.Be that the upper end of the double hollow oil pumping rod 4 of 42mm is connected with a double hollow oil pumping rod threeway 1 at well head and at diameter.The diameter of double hollow oil pumping rod threeway 1 is 42mm, and length is 0.1m.The double hollow oil pumping rod threeway import 2 of double hollow oil pumping rod threeway 1 connects the hot water outlet pipe of ground heating circulation system, the double hollow oil pumping rod threeway outlet 3 of double hollow oil pumping rod threeway 1, the backwater inlet tube of connection ground heating circulation system.
Double hollow oil pumping rod threeway 1, double hollow oil pumping rod 4 and inner-outer circulation linker 5, Co., Ltd produces by the auspicious auspicious petroleum thermal recovery equipment in Hengshui.Miscellaneous part is that common components or market are on sale.
Claims (1)
1. a flowing well wax removal tubing string comprises downhole oil tubing string and rod string; It is characterized in that: tubing string under the lower going-into-well in flowing well, the structure of downhole oil tubing string is: be connected with horn mouth (7) in the lower end of heavy wall tubing (6), the position of horn mouth (7) is on the top of oil reservoir; Be lowered to rod string in the downhole oil tubing string, the structure of rod string is: the lower end of double hollow oil pumping rod (4) is connected with inner-outer circulation linker (5); Be connected with double hollow oil pumping rod threeway (1) at well head and in the upper end of double hollow oil pumping rod (4); The double hollow oil pumping rod threeway import (2) of double hollow oil pumping rod threeway (1) connects the hot water outlet pipe of ground heating circulation system, the double hollow oil pumping rod threeway outlet (3) of double hollow oil pumping rod threeway (1), the backwater inlet tube of connection ground heating circulation system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220397845 CN202745816U (en) | 2012-08-13 | 2012-08-13 | Paraffin removal pipe column of flowing well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220397845 CN202745816U (en) | 2012-08-13 | 2012-08-13 | Paraffin removal pipe column of flowing well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202745816U true CN202745816U (en) | 2013-02-20 |
Family
ID=47705233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220397845 Expired - Fee Related CN202745816U (en) | 2012-08-13 | 2012-08-13 | Paraffin removal pipe column of flowing well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202745816U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112065327A (en) * | 2019-06-10 | 2020-12-11 | 中国石油天然气股份有限公司 | Hollow rod internal circulation paraffin removal device and method |
| CN114737918A (en) * | 2021-01-07 | 2022-07-12 | 中国石油天然气股份有限公司 | Molten wax unblocking device and method |
-
2012
- 2012-08-13 CN CN 201220397845 patent/CN202745816U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112065327A (en) * | 2019-06-10 | 2020-12-11 | 中国石油天然气股份有限公司 | Hollow rod internal circulation paraffin removal device and method |
| CN114737918A (en) * | 2021-01-07 | 2022-07-12 | 中国石油天然气股份有限公司 | Molten wax unblocking device and method |
| CN114737918B (en) * | 2021-01-07 | 2023-12-22 | 中国石油天然气股份有限公司 | Wax melting blocking removing device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130220 Termination date: 20210813 |