CN202338235U - Snubbing well-flushing column of oil well - Google Patents
Snubbing well-flushing column of oil well Download PDFInfo
- Publication number
- CN202338235U CN202338235U CN2011203947518U CN201120394751U CN202338235U CN 202338235 U CN202338235 U CN 202338235U CN 2011203947518 U CN2011203947518 U CN 2011203947518U CN 201120394751 U CN201120394751 U CN 201120394751U CN 202338235 U CN202338235 U CN 202338235U
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- well
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- flushing
- pipe
- snubbing
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Abstract
The utility model discloses a snubbing well-flushing column of an oil well, which is applicable to a snubbing well-flashing column of oil-well oil extraction production. An upper end thread of a plug is connected to a lower screen pipe; the upper end of the lower screen pipe is connected to a lower adapter connector through an oil pipe; the upper end thread of the lower adapter connector is connected to a well-flushing packer; the upper end thread of the well-flushing packer is connected to an upper adapter connector; the upper adapter connector is connected to an upper screen pipe through the oil pipe; the upper end of the upper screen pipe is connected to a column plug-shaped oil well pump; and the upper end thread of the column plug-shaped oil well pump is connected to a flat oil pipe with an outer diameter of 73mm which is straightly connected to the well opening. The snubbing well-flushing column of an oil well disclosed by the utility model has the advantage of capabilities of carrying out well-flushing in the case of snubbing and solving the problems of part snubbing well-flushing of the oil well. After the oil well is thermally washed, the recovery period is within 8 hours; and the well washing liquid cannot enter the oil layer.
Description
Technical field
The utility model relates to the oil field development technical field, particularly a kind of not kill-job of oil well Flushing tubular column, be a kind of when oil well heat is washed flushing fluid can not get into the Flushing tubular column of oil reservoir.
Background technology
At present, it is one of method of being adopted of machine-pumped oil well wax removal that each oil field heat is washed, and is the effective measures that guarantee the long-term stable yields of oil well, is again the main means that prolong oil well repair free period.During hot-washing wax remover, though oil production equipment constantly turns round, with circulation hydrothermal, oil well is not produced crude oil, and heat washes that the time is long more, and the cycle is short more, and it is serious more to influence output; When heat was washed, the fusing of paraffin mainly leaned on thermal medium to carry out through conduction, in order to effectively utilize heat transfer efficiency; When heat is washed beginning, require discharge capacity bigger, wash medium when heat and be full of the oil jacket annular space; Head of liquid is often greater than near the strata pressure borehole wall, thereby heat washes medium and get into the stratum, causes " pouring in down a chimney " kill-job; The hyposmosis oil well low for submergence, that stratum energy is low, " pouring in down a chimney " phenomenon is even more serious.Heat is washed the pollution of medium, and when heat was washed medium and is water, hot water got into the stratum, in oil discharge passage, forms " water lock " passage temporarily; Clay swell be prone to take place simultaneously, when heat is washed medium and is crude oil (non-) by washing oil wells crude oil, pollute even more serious, if hot washing lotion temperature is not high; In a single day the higher crude oil of paraffin content get into the stratum, then will work the mischief, and field practice shows, after many well heat are washed; Although the oil production equipment parameter does not change, pump work is normal, and output has reduced; Through calculate before oil well heat is washed skin factor by the negative value change be after heat is washed on the occasion of, explain that oil reservoir is contaminated really, thereby oilwell produced fluid amount decline.
The Chinese patent publication number is: CN1702292, a kind of method of hot cleanout and paraffin removal of oil well is provided, aim to provide a kind of not kill-job, shorten or eliminate oil well convalescence, oil-well strata is polluted little, the method for the hot cleanout and paraffin removal of oil well that the wax removal cost is low.This method comprises the steps: under the condition of well head insulation, in sleeve pipe, injects the superheated water that is heated to 100-120 ℃; Make superheated water have the outer wall of the oil pipe of wax to flow down during water filling, wax is melted along the inwall crystallization.This method is used for removing the wax deposition in the oil well oil pipe.Because water temperature is up to more than 100 degree, when injecting superheated water, superheated water flows down and can wax all fusings and under the situation of insulation, in time wax being discharged gradually be reduced water supply volume along oil-pipe external wall.Because to inject superheated water near the mode of oil pumper theoretical displacement, the superheated water of injection is in time discharged, not kill-job, pumpingh well do not have convalescence or convalescence very short, can will be reduced to minimum to the pollution of oil-well strata.
The utility model content
The purpose of the utility model is: a kind of not kill-job of oil well Flushing tubular column is provided, can be implemented under the situation of not kill-job and carries out the oil well well-flushing, solve the difficult problem of not kill-job of part oil well well-flushing.
The technical scheme that the utility model adopts is: not kill-job of oil well Flushing tubular column; Comprise plug, down screen casing, down become snapping head, flushing packer, on become the snapping head, go up the plain end oil well pipe that screen casing, plunger oil-well pump and external diameter are 73mm; It is characterized in that: not kill-job Flushing tubular column annexation from bottom to top is: screw thread is connected with screen casing down in the upper end of plug; Change snapping head under the upper end of screen casing is connected with through oil pipe down, the flushing packer that is threaded in the upper end that becomes the snapping head down, screw thread is connected with and becomes the snapping head in the upper end of flushing packer; Upper end at last change snapping head is connected with screen casing through oil pipe; The upper end of last screen casing connects plunger oil-well pump through oil pipe, and the external diameter that is threaded in the upper end of plunger oil-well pump is the plain end oil well pipe of 73mm, and external diameter is that the plain end oil well pipe of 73mm is connected to well head always.Not kill-job of oil well Flushing tubular column is lowered in the sleeve pipe, and the production of normally recovering the oil can also be carried out well-flushing under the situation of not kill-job.
The model of the flushing packer of the employing in the not kill-job Flushing tubular column is the Z331-115 type.
The beneficial effect of the utility model: not kill-job of oil well Flushing tubular column, can be implemented under the situation of not kill-job and carry out the oil well well-flushing, solve the difficult problem of not kill-job of part oil well well-flushing.After oil well heat was washed, convalescence, flushing fluid can not get into oil reservoir in 8 hours.
Description of drawings
Fig. 1 is not kill-job of a utility model oil well Flushing tubular column structural representation.
Among the figure, the 1-plug, screen casing under the 2-, 3-become the snapping head down, the 4-flushing packer, the last change of 5-snapping head, the last screen casing of 6-, 7-plunger oil-well pump, 8-external diameter are the plain end oil well pipe of 73mm, the 9-sleeve pipe.
The specific embodiment
Embodiment 1: the oil well not kill-job Flushing tubular column on probation with wild goose 9-16x well is example, and the utility model is done further explain.Wild goose 9-16x well, the content of wax 19.7%, 35 ℃ at freezing point.
Adopt not kill-job of oil well Flushing tubular column at wild goose 9-16x well.Tubular column structure makes up from bottom to top, and annexation is: consult Fig. 1.Not kill-job Flushing tubular column annexation from bottom to top is: external diameter is that the plug 1 lower end degree of depth of 88.9mm is 2136m; At external diameter is that the plug 1 upper end screw thread of 88.9mm is connected with the following screen casing 2 that external diameter is 73mm, and the following screen casing 2 lower end degree of depth are 2105m; Change snapping head 3 under the upper end of screen casing 2 is connected with one through oil pipe down; Flushing packer 4 is threaded in the upper end that becomes snapping head 3 down; The external diameter of flushing packer is 114mm, and flushing packer 4 times is dark to be 2095m, and the model of flushing packer is the Z331-115 type.Screw thread is connected with and becomes snapping head 5 in the upper end of flushing packer 4, is connected with screen casing 6 through oil pipe in the upper end of last change snapping head 5, and the external diameter of last screen casing 6 is 73mm, and the last screen casing 6 lower end degree of depth are 2075m.The upper end of last screen casing 6 connects a plunger oil-well pump 7 through oil pipe, and plunger oil-well pump 7 depth of settings are 2063m.The external diameter that is threaded in the upper end of plunger oil-well pump 7 is the plain end oil well pipe 8 of 73mm, and external diameter is that the plain end oil well pipe 8 of 73mm is connected to well head always.
Claims (1)
1. not kill-job of oil well Flushing tubular column; Comprise plug (1), down screen casing (2), down become snapping head (3), flushing packer (4), on become snapping head (5), go up the plain end oil well pipe (8) that screen casing (6), plunger oil-well pump (7) and external diameter are 73mm; It is characterized in that: not kill-job Flushing tubular column annexation from bottom to top is: the upper end screw thread at plug (1) is connected with screen casing (2) down; Change snapping head (3) under the upper end of screen casing (2) is connected with through oil pipe down; Flushing packer (4) is threaded in the upper end that becomes snapping head (3) down; Upper end screw thread at flushing packer (4) is connected with change snapping head (5), is connected with screen casing (6) in the upper end of last change snapping head (5) through oil pipe, and the upper end of last screen casing (6) connects plunger oil-well pump (7) through oil pipe; The external diameter that is threaded in the upper end of plunger oil-well pump (7) is the plain end oil well pipe (8) of 73mm, and external diameter is that the plain end oil well pipe (8) of 73mm is connected to well head always.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203947518U CN202338235U (en) | 2011-10-17 | 2011-10-17 | Snubbing well-flushing column of oil well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203947518U CN202338235U (en) | 2011-10-17 | 2011-10-17 | Snubbing well-flushing column of oil well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202338235U true CN202338235U (en) | 2012-07-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203947518U Expired - Fee Related CN202338235U (en) | 2011-10-17 | 2011-10-17 | Snubbing well-flushing column of oil well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202338235U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104213873A (en) * | 2013-06-05 | 2014-12-17 | 中国石油天然气股份有限公司 | Method for determining temperature of well washing through oil well hollow rod |
| CN114086923A (en) * | 2021-12-28 | 2022-02-25 | 成都北方石油勘探开发技术有限公司 | Production tool and method for self-filling sand-prevention and paraffin-control extract |
-
2011
- 2011-10-17 CN CN2011203947518U patent/CN202338235U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104213873A (en) * | 2013-06-05 | 2014-12-17 | 中国石油天然气股份有限公司 | Method for determining temperature of well washing through oil well hollow rod |
| CN114086923A (en) * | 2021-12-28 | 2022-02-25 | 成都北方石油勘探开发技术有限公司 | Production tool and method for self-filling sand-prevention and paraffin-control extract |
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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: 20120718 Termination date: 20201017 |