CN202913969U - Large-diameter selective injection and production integrated pipe string for heavy oil wells - Google Patents
Large-diameter selective injection and production integrated pipe string for heavy oil wells Download PDFInfo
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- CN202913969U CN202913969U CN201220509276.9U CN201220509276U CN202913969U CN 202913969 U CN202913969 U CN 202913969U CN 201220509276 U CN201220509276 U CN 201220509276U CN 202913969 U CN202913969 U CN 202913969U
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Abstract
本实用新型提供一种稠油井大通径选注选采一体管柱，至少包含有一DY245型悬挂器、一安全接头及一Y361型封隔器，所述悬挂器与安全接头通过油管相连接，所述封隔器的上端螺接于所述安全接头，其下端则连接有一喇叭口，其中，所述DY245型悬挂器及Y361型封隔器的中心管内径分别≥100mm，所述油管为41/2油管。本实用新型的稠油井大通径选注选采一体管柱，能克服油层热量损失、油层污染及无法过泵生产的问题，从而节省油井作业时间和作业费用，提高油井的生产时率。
The utility model provides a thick oil well with a large diameter selective injection and production integrated pipe string, which at least includes a DY245 type hanger, a safety joint and a Y361 type packer. The hanger and the safety joint are connected through oil pipes. The upper end of the packer is screwed to the safety joint, and the lower end is connected to a bell mouth, wherein, the inner diameters of the center pipes of the DY245 type hanger and the Y361 type packer are respectively ≥ 100 mm, and the oil pipes are 4 1 / 2 tubing. The large-diameter selective-injection-selective-production integrated pipe string of the utility model can overcome the problems of oil layer heat loss, oil layer pollution and inability to pump production, thereby saving oil well operation time and operating costs, and improving oil well production time rate.
Description
Technical field
The utility model is a kind of oil well process pipe string that belongs in the petroleum production engineering field, and the large latus rectum choosing of a kind of heavy oil wells of particularly adopting for the heavy oil heat production well is annotated choosing and adopted integral tubular column.
Background technology
At present, heavy oil heat production has entered high round and has handled up the stage, is subjected to oil reservoir to grow the impact of non-homogeneity, after many wheels are handled up, oil reservoir is vertically employed uneven contradiction, has seriously restricted the whole development effect in oil field, and viscous crude apolegamy notes technology is the effective means that addresses this problem.It mainly is to utilize the oil reservoirs that the downhole tool shutoff is grown, vapor absorption capacity is strong, development degree is large such as thermal packer that viscous crude selects the notes technology, make this class oil reservoir not inhale vapour or inhale less vapour, thereby force the steam injection to grow relatively poor, the oil reservoir that development degree is lower, so that it is uneven to solve the vertical reserves development degree of steam-stimulated well oil reservoir, inject the steam effective utility of laser power low, the contradiction of deficiency in economic performance, finally reach the purpose of joint vapour volume increase, have seal up pour down, seal make a bet upper and seal up make a bet in the middle of three kinds select the notes mode.
But because such oil well interlayer contradiction is outstanding, trips out choosing after the steam injection and annotate that pump closes when adopting under the tubing string, interlayer still exist influence each other, mutual interference problem, easily pour in down a chimney thermal loss and the oil layer pollution that causes oil reservoir; The job execution workload is large, operating cost is high, and production time efficiency is low; Simultaneously, be subjected to tubing string (restriction of internal diameter≤73mm) can't be crossed pump production, cause oil well production after a period of time feed flow not enough, restricted the oil well productivity performance.
Because the defective that above-mentioned known technology exists, the utility model people develops the choosing of the large latus rectum choosing of heavy oil wells of the present utility model notes and adopts integral tubular column according to the Production design experience of being engaged in for many years this area and association area.
The utility model content
The purpose of this utility model is to be to provide the large latus rectum choosing of a kind of heavy oil wells to annotate choosing to adopt integral tubular column, it can overcome oil reservoir thermal loss, oil layer pollution and can't cross the problem that pump is produced, thereby save oil well operation time and operating cost, improve the production time efficiency of oil well.
For this reason, the utility model proposes the choosing of the large latus rectum choosing of a kind of heavy oil wells notes and adopt integral tubular column, it includes a DY245 type hanger, a safety joint and a Y361 type packer, described hanger is connected by oil pipe with safety joint, the upper end of described packer is bolted in described safety joint, and its lower end then is connected with a horn mouth, wherein, inner diameter of centerpipe difference 〉=the 100mm of described DY245 type hanger and Y361 type packer, described oil pipe are 4
1/
2Oil pipe.
The utility model also proposes the choosing of the large latus rectum choosing of a kind of heavy oil wells notes and adopts integral tubular column, it includes a hanger, notes are adopted valve, a safety joint and a Y361 type packer, described DY245 type hanger, notes are adopted valve and safety joint is connected by oil pipe successively, the upper end of described packer is bolted in described safety joint, its lower end then is connected with a plug, wherein, described DY245 type hanger, notes are adopted the inner diameter of centerpipe difference 〉=100mm of valve and Y361 type packer, and described oil pipe is 4
1/
2Oil pipe.
The choosing of the large latus rectum of heavy oil wells of the present utility model is annotated choosing and is adopted integral tubular column, by the inner chamber of integral tubular column of the present utility model, from ground with 2
7/
8The oil well pump that oil pipe (being that internal diameter is the oil pipe of 73mm) connects is near oil reservoir, to satisfy the needs of crossing the pump exploitation in the down-hole, overcome that (the oil well actual needs has been satisfied in the restriction of internal diameter≤73mm), and can't cross the difficult problem that pump is produced because of tubing string because of prior art; Integral tubular column is adopted in choosing notes of the present utility model choosing, and the position is motionless in use, packer remains sealing state, before lower pump is produced, when injecting high-temperature steam, can reduce in downward oil reservoir the thermal loss of oil reservoir, same at present pump turns can be avoided when taking out because pressure is arranged in the well, the pollution that need to carry out kill-job, well-flushing and oil reservoir is caused, because upper and lower oil reservoir seals mutually, further alleviated interlayer interference, thereby save oil well operation time and operating cost, improve the production time efficiency of oil well, satisfy the oil well production needs; In addition, for the utility model, after the end of recovering the oil, by 2
7/
8Oil pipe and of the present utility model 4
1/
2The annular space that forms between the oil pipe also can pass through fluid, realizes clean-out service.
Description of drawings
The following drawings only is intended to the utility model done and schematically illustrates and explain, does not limit scope of the present utility model.Wherein:
Fig. 1 is that the structural representation that integral tubular column is adopted in choosing is annotated in the large latus rectum choosing of heavy oil wells of the present utility model;
Fig. 2 is that the structural representation that another embodiment of integral tubular column is adopted in choosing is annotated in the large latus rectum choosing of heavy oil wells of the present utility model.
Fig. 3 is the structural representation of DY245 type hanger in the utility model;
Fig. 4 is the structural representation of Y361 type packer in the utility model;
Fig. 5 annotates the structural representation of adopting valve in the utility model.
The critical element label declaration:
1-DY245 type hanger, the 2-safety joint, 3-Y361 type packer, the 4-oil pipe, the 5-horn mouth, 6-annotates and adopts valve, 7-plug, 8-sleeve pipe, the upper oil reservoir of 91-, oil reservoir under the 92-, 11/31/61-central tube.
The specific embodiment
Understand for technical characterictic of the present utility model, purpose and effect being had more clearly, now contrast the description of drawings specific embodiment of the present utility model.Wherein, identical parts adopt identical label.
Fig. 1 is that the structural representation that integral tubular column is adopted in choosing is annotated in the large latus rectum choosing of heavy oil wells of the present utility model; Fig. 2 is that the structural representation that another embodiment of integral tubular column is adopted in choosing is annotated in the large latus rectum choosing of heavy oil wells of the present utility model.Fig. 3 is the structural representation of DY245 type hanger in the utility model; Fig. 4 is the structural representation of Y361 type packer in the utility model; Fig. 5 annotates the structural representation of adopting valve in the utility model.
Referring to Fig. 1, the large latus rectum choosing of heavy oil wells of the present utility model is annotated choosing and is adopted integral tubular column, include a DY245 type hanger 1, one safety joint 2 and a Y361 type packer 3, described hanger 1 is connected by oil pipe 4 with safety joint 2, the upper end of described Y361 type packer 3 is bolted in described safety joint 2, its lower end then is connected with a horn mouth 5, this horn mouth not only can form oil inlet passage, and pass choosing of the present utility model at oil well pump and annotate choosing when adopting integral tubular column and producing, can prevent the scratching gouge of pump line, wherein, please in the lump referring to Fig. 3, Fig. 4, the central tube 11 of described DY245 type hanger 1 and Y361 type packer 3,31 inner diameter d 1, d2 difference 〉=100mm, described oil pipe 4 is 4
1/
2Oil pipe (being that internal diameter is the oil pipe of 114mm).It is pointed out that DY245 type hanger and Y361 type packer in the utility model, is that it is same as the prior art that other forms structure the central tube more than the 100mm except adopting internal diameter, and therefore not to repeat here.
The large latus rectum choosing of the heavy oil wells that the utility model proposes is annotated choosing and is adopted integral tubular column, adopts lower stratotype tubing string for sealing up layer notes, and its operating principle is:
The operating position that the down-hole is adopted under the integral tubular column in choosing is annotated in the choosing of the large latus rectum of heavy oil wells of the present utility model, and make DY245 type hanger 1 be positioned at the upside of oil reservoir 91, and Y361 type packer 3 is between upper and lower oil reservoir 91,92; Suppress by ground, DY245 type hanger 1 firmly is anchored to sleeve pipe 8 inwalls of oil well, Y361 type packer 3 is finished and is set simultaneously, and it separates upper oil reservoir 91 and lower oil reservoir 92, and form respectively an independently unit, adopt operation lower oil reservoir is selected annotate to select; By the inner chamber of integral tubular column of the present utility model, from ground with 2
7/
8The oil well pump that oil pipe (being that internal diameter is the oil pipe of 73mm) connects is near oil reservoir, to satisfy the needs of crossing the pump exploitation in the down-hole, (the oil well actual needs has been satisfied in the restriction of internal diameter≤73mm), and can't cross the difficult problem that pump is produced because of tubing string to have overcome prior art; Integral tubular column is adopted in choosing notes of the present utility model choosing, and the position is motionless in use, packer remains sealing state, before lower pump is produced, when injecting high-temperature steam, can reduce in downward oil reservoir the thermal loss of oil reservoir, same at present pump turns can be avoided when taking out because pressure is arranged in the well, the pollution that need to carry out kill-job, well-flushing and oil reservoir is caused, because upper and lower oil reservoir seals mutually, further alleviated interlayer interference, thereby save oil well operation time and operating cost, improve the production time efficiency of oil well, satisfy the oil well production needs; In addition, for the utility model, after the end of recovering the oil, by 2
7/
8Oil pipe and of the present utility model 4
1/
2The annular space that forms between the oil pipe also can pass through fluid, realizes clean-out service.
As shown in Figure 2, for another embodiment that integral tubular column is adopted in choosing is annotated in the large latus rectum choosing of heavy oil wells of the present utility model, it includes a DY245 type hanger 1, one notes are adopted valve 6, one safety joint 2 and a Y361 type packer 3, described DY245 type hanger 1, notes adopt valve 6 and safety joint 2 is connected by oil pipe 4 successively, the upper end of described Y361 type packer 3 is bolted in described safety joint 2, its lower end then is connected with a plug 7, wherein, please in the lump referring to Fig. 3 to Fig. 5, described DY245 type hanger 1, notes are adopted the central tube 11 of valve 6 and Y361 type packer 3,31,61 inner diameter d 1, d2, d3 difference 〉=100mm, described oil pipe 4 is 4
1/
2Oil pipe.It is pointed out that DY245 type hanger, Y361 type packer and notes in the utility model adopt valve, is that it is same as the prior art that other forms structure the central tube more than the 100mm except adopting internal diameter, and therefore not to repeat here.
The large latus rectum choosing of the heavy oil wells that the utility model proposes is annotated choosing and is adopted integral tubular column, annotates for envelope lower floor and adopts upper stratotype tubing string, and its operating principle is:
The operating position that the down-hole is adopted under the integral tubular column in choosing is annotated in the choosing of the large latus rectum of heavy oil wells of the present utility model, and make DY245 type hanger 1 be positioned at the upside of oil reservoir 91, it is relative with the position of upper oil reservoir 91 that notes are adopted valve 6, and Y361 type packer 3 is between upper and lower oil reservoir 91,92; Suppress by ground, hanger 1 firmly is anchored to sleeve pipe 8 inwalls of oil well, simultaneously Y361 type packer 3 is finished and is set, and so that upper oil reservoir 91 and lower oil reservoir 92 are separated, and forms respectively an independently unit, annotates choosing and adopts operation so that upper oil reservoir is selected; By the inner chamber of integral tubular column of the present utility model, from ground with 2
7/
8The oil well pump that oil pipe (being that internal diameter is the oil pipe of 73mm) connects is adopted in the valve 6 down to notes, to satisfy the needs of crossing the pump exploitation in the down-hole, in addition, adopt valve 6 by arranging to annotate in the present embodiment, before adopting, lower pump choosing is lowered to thermal recovery tubular column, so that upper oil reservoir is injected high-temperature steam, can further improve vertical development degree of oil reservoir.Other beneficial effects of present embodiment are identical with embodiment 1, do not repeat them here.
In a word, the large latus rectum choosing of the heavy oil wells that the utility model provides is annotated choosing and is adopted integral tubular column, can overcome oil reservoir thermal loss, oil layer pollution and can't cross the problem that pump is produced, thereby save oil well operation time and operating cost, improves the production time efficiency of oil well.
The above only is the schematic specific embodiment of the utility model, is not to limit scope of the present utility model.Any those skilled in the art, the equivalent variations of doing under the prerequisite that does not break away from design of the present utility model and principle and modification all should belong to the scope that the utility model is protected.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220509276.9U CN202913969U (en) | 2012-09-27 | 2012-09-27 | Large-diameter selective injection and production integrated pipe string for heavy oil wells |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220509276.9U CN202913969U (en) | 2012-09-27 | 2012-09-27 | Large-diameter selective injection and production integrated pipe string for heavy oil wells |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202913969U true CN202913969U (en) | 2013-05-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220509276.9U Expired - Fee Related CN202913969U (en) | 2012-09-27 | 2012-09-27 | Large-diameter selective injection and production integrated pipe string for heavy oil wells |
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| Country | Link |
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| CN (1) | CN202913969U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119221895A (en) * | 2024-12-05 | 2024-12-31 | 胜利油田东方实业投资集团有限责任公司 | A steam injection string and a method for increasing production in multi-layer and casing leakage heavy oil wells |
-
2012
- 2012-09-27 CN CN201220509276.9U patent/CN202913969U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119221895A (en) * | 2024-12-05 | 2024-12-31 | 胜利油田东方实业投资集团有限责任公司 | A steam injection string and a method for increasing production in multi-layer and casing leakage heavy oil wells |
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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: 20130501 Termination date: 20210927 |