CN202560115U - Selective injection and water plugging integrated pipe column for thickened oil well - Google Patents
Selective injection and water plugging integrated pipe column for thickened oil well Download PDFInfo
- Publication number
- CN202560115U CN202560115U CN2012202473256U CN201220247325U CN202560115U CN 202560115 U CN202560115 U CN 202560115U CN 2012202473256 U CN2012202473256 U CN 2012202473256U CN 201220247325 U CN201220247325 U CN 201220247325U CN 202560115 U CN202560115 U CN 202560115U
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- choosing
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- tubing string
- heavy oil
- water blockoff
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Abstract
The utility model discloses a selective injection and water plugging integrated pipe column for a thickened oil well, which is provided with two packers and a telescopic compensator, wherein the telescopic compensator is arranged between the two packers; one end of the telescopic compensator is connected with an oil pipe; and the packer arranged at the top is a releasing packer. The selective injection and water plugging integrated pipe column integrates the functions of selective injection and water plugging for a thickened oil well, thereby effectively solving the problems of heat loss and pollution of oil layers after the selective injection of the thick oil well, greatly saving time and cost of operation of the oil well, and improving the production hourly rate of the oil well.
Description
Technical field
The utility model relates to a kind of down-hole string, especially designs a kind of heavy oil wells choosing and annotates water blockoff one tubing string.
Background technology
Present heavy oil heat production wet well, the mode that choosing is annotated and water blockoff need be itemized and carried out, the job execution complex procedures at first trips out flow string, and tubing string is annotated in following choosing, and notes vapour trips out choosing afterwards and annotates tubing string, descends water pack off tubing string shutoff water-yielding stratum to produce again.Because such oil well interlayer contradiction is outstanding, be prone to cause thermal loss and the oil layer pollution that selects the oiling layer when tripping out choosing notes tubing string behind the notes vapour.Simultaneously this traditional heavy oil wells choosing is annotated, the water blockoff mining type exists problems such as the work operations amount is big, operating cost height.
In addition, because technical reason, packer is lowered to the back at tubing string and because of the relation of temperature and gravity microdisplacement takes place easily, and these micro-displacements have just caused the illusive problem of packer set to occur probably, thereby has influenced the efficient of recovering the oil.
The utility model content
The technical problem that the utility model solves provides a kind of heavy oil wells choosing and annotates water blockoff one tubing string, the rate during production that improves oil well.
The technical solution of the utility model is:
Water blockoff one tubing string is annotated in a kind of heavy oil wells choosing, and wherein, said heavy oil wells choosing is annotated water blockoff one tubing string and is provided with two packers and telescopic compensator;
Said telescopic compensator is located between two said packers, and an end of said telescopic compensator is connected with an oil pipe;
The said packer of being located at the top is a back-off packer.
Water blockoff one tubing string is annotated in above-mentioned heavy oil wells choosing, and wherein, said telescopic compensator is provided with outer tube, inner sleeve and telescoping tube, and said outer tube is sheathed on outside the said inner sleeve, and said inner sleeve is sheathed on outside the said telescoping tube; Said inner sleeve comprises the first slip pipeline section and the second slip pipeline section; Said telescoping tube comprises first casing section and second casing section of mutual sheathed cooperation, and said first slip pipeline section and said first casing section and the said second slip pipeline section and said second casing section be the relative fixed setting respectively.
Water blockoff one tubing string is annotated in above-mentioned heavy oil wells choosing, wherein, is respectively equipped with the slipper seal structure between the said first slip pipeline section and the second slip pipeline section and the said outer tube inboard.
Water blockoff one tubing string is annotated in above-mentioned heavy oil wells choosing, wherein, is respectively equipped with pin feature between said outer tube and the said first slip pipeline section and the second slip pipeline section.
Water blockoff one tubing string is annotated in above-mentioned heavy oil wells choosing, and wherein, the said back-off packer of being located at the top is a Y445 high temperature back-off packer, and the said packer of being located at the bottom is the Y341 packer.
Water blockoff one tubing string is annotated in above-mentioned heavy oil wells choosing, and wherein, said heavy oil wells choosing is annotated water blockoff one tubing string bottom and is provided with the landing ball seat.
Water blockoff one tubing string is annotated in above-mentioned heavy oil wells choosing, and wherein, said heavy oil wells choosing is annotated its bottom of water blockoff one tubing string and is provided with plug, and is provided with the oil recovery valve between said two packers.
Water blockoff one tubing string is annotated in above-mentioned heavy oil wells choosing, and wherein, said telescoping tube column top is connected with said oil pipe.
Learn that by above explanation the utility model can reach following effect compared with prior art really:
The utility model has realized that heavy oil wells choosing is annotated, water blockoff one tubing string, effectively solves the problem that back oil reservoir thermal loss and oil layer pollution are annotated in the heavy oil wells choosing, saves oil well activity duration and operating cost greatly, the rate during production of raising oil well.
Simultaneously, being provided with telescopic compensator can prevent to cause the unstable problem of seat envelope, the rate during production that has better improved oil well owing to two packers carry out water blockoff simultaneously with the microdisplacement that the process of annotating the vapour operation occurs effectively.
Description of drawings
Fig. 1 is the structural representation that water blockoff one tubing string is annotated in the heavy oil wells choosing of the utility model;
Fig. 2 is the structural representation of the telescopic compensator of the utility model.
The critical element label declaration:
1: packer 2: oil pipe 3: telescopic compensator
31: outer tube 32: 321: the first slip pipeline sections of inner sleeve
332: the second casing sections of 331: the first casing sections of 322: the second slip pipeline sections
4: packer 5: the landing ball seat
The specific embodiment
Water blockoff one tubing string is annotated in a kind of heavy oil wells choosing of the utility model, is provided with two packers and telescopic compensator; Said telescopic compensator is located between two said packers, and an end of said telescopic compensator is connected with an oil pipe; The said packer of being located at the top is a back-off packer.Whereby, effectively solve the problem that back oil reservoir thermal loss and oil layer pollution are annotated in heavy oil wells choosing, save oil well activity duration and operating cost greatly, the rate during production of raising oil well.
Understand for technical characterictic, purpose and effect to the utility model have more clearly, contrast the specific embodiment of description of drawings the utility model at present.
Please with reference to shown in Figure 1, annotate water blockoff one tubular column structure sketch map for a kind of heavy oil wells choosing of the utility model, in its preferred embodiment, said heavy oil wells choosing is annotated water blockoff one tubing string and is provided with two packers 1,4 and telescopic compensator 3; Said telescopic compensator 3 is located at two said packers 1, between 4; Telescopic compensator 3 can prevent effectively that the microdisplacement of two packers 1,4 in the packing process from changing, and prevents because variations in temperature etc. are former thereby the packing less situation of packer 1,4 displacements that cause occurs.Through two intervals about 1,4 packings of two packers, shutoff water-yielding stratum.And then, change behind the notes vapour and take out production through being lowered to steam injection string.And an end of said telescopic compensator 3 is connected with an oil pipe 2, and the length of oil pipe 2 can via the linking of this oil pipe 2, can be controlled the degree of depth of oil-separating layer according to concrete core intersection setting; The said packer 1 of being located at the top is a back-off packer, and the back-off packer at top is used with the tubing string of giving up and is used.
As shown in Figure 2, water blockoff one tubing string is annotated in the heavy oil wells choosing of the utility model, and preferable, said telescopic compensator 3 is provided with outer tube 31, inner sleeve 32 and telescoping tube, and said outer tube 31 is sheathed on outside the said inner sleeve 32, and the setting of can sliding relatively; Said inner sleeve 32 then is sheathed on outside the said telescoping tube; Wherein, said inner sleeve 32 comprises that the first slip pipeline section 321 and 322, two sections slip pipeline sections of the second slip pipeline section are oppositely installed each other; Said telescoping tube comprises first casing section 331 and second casing section 332 of mutual sheathed cooperation; Its structure is concrete; Can be that a end at first casing section 331 is provided with the less pipeline section of diameter, and this pipeline section be inserted in second casing section 332, and the setting of can sliding relatively; And the said first slip pipeline section 321 and said first casing section 331 and said second slip pipeline section 322 and the said second casing section 332 relative fixed setting respectively.That is to say; When relative displacement takes place owing to the pulling force of both sides up and down is different in telescoping tube; Driving inner sleeve 32 moves; And inner sleeve 32 slides in said outer tube 31, and allowing up and down, the tightness of assurance packing can not take place owing to mutual active force in microdisplacement relatively and the displacement of the borehole wall two packers.
Water blockoff one tubing string is annotated in aforesaid heavy oil wells choosing, and is preferable, is respectively equipped with the slipper seal structure between the said first slip pipeline section 321 and the second slip pipeline section 322 and said outer tube 31 inboards.In when, between two packers relative displacement taking place when; Said telescoping tube expansion loop can compensate this shift length to be changed; Simultaneously; In the telescopic variation process of telescoping tube and inner sleeve 32, outer tube 31 keeps absolute sealing relationship all the time and between the said inner sleeve 32, guarantees that the merchantable thing in the telescoping tube can outwards not revealed by these telescopic compensator 3 places.
Water blockoff one tubing string is annotated in aforesaid heavy oil wells choosing, and is preferable, is respectively equipped with pin feature between said outer tube 31 and the said first slip pipeline section 321 and the second slip pipeline section 322.Also do not take place in the process of any change in displacement at tubing string, in the perhaps untapped process, through making relative fixed between outer tube 31 and the inner sleeve 32 in the pin feature that is provided with between said outer tube 31 and the said inner sleeve 32.
Water blockoff one tubing string is annotated in aforesaid heavy oil wells choosing, and preferable, the said back-off packer of being located at the top is a Y445 high temperature back-off packer, and the said packer 4 of being located at the bottom is the Y341 packer.The packer type of the utility model is not limited to above-mentioned packer, as long as can satisfy the requirement of seat envelope, the packer that reaches seat envelope effect gets final product.
Water blockoff one tubing string is annotated in aforesaid heavy oil wells choosing; In its preferred embodiment, said heavy oil wells choosing is annotated water blockoff one tubing string bottom and is provided with landing ball seat 5, after this tubing string seat envelope is accomplished; Continuation is pressurizeed in tubing string; Know above-mentioned landing ball seat 5 destroyed till, trip out steam injection string under the tubing string of giving up then, live weather and change and take out production.
Water blockoff one tubing string is annotated in aforesaid heavy oil wells choosing, and in its another preferred implementation, said heavy oil wells choosing is annotated its bottom of water blockoff one tubing string and is provided with plug, and is provided with the oil recovery valve between said two packers.Also can be that upper packer 1 top is provided with the oil recovery valve, through the oil recovery valve being set, and realize the water of shutoff diverse location, carry out the notes vapour oil producing operation of diverse location in different positions.
Water blockoff one tubing string is annotated in aforesaid heavy oil wells choosing, and in its preferred implementation, said telescoping tube column top is connected with said oil pipe 2.Preferable, said oil pipe 2 is arranged at the upper end of said telescopic compensator 3, can reduce the possibility that top packer 1 is subjected to displacement rapidly owing to action of gravity with this, makes its envelope better effects if.
A preferred implementation with the utility model is an example below, and its operation process is described; In a preferred implementation of the utility model,
This heavy oil wells choosing is annotated water blockoff one tubing string bottommost and is provided with landing ball seat 5; Its upper end is connected with the Y341 packer; This Y341 packer other end connects telescopic compensator 3, and oil pipe 2 backs that these telescopic compensator 3 upper ends connect certain-length again connect Y445 high temperature back-off packer 1.Whereby, heavy oil wells choosing is annotated under the water blockoff one tubing string behind design attitude, suppress the seat envelope; When pressure reached 6Mpa, Y445 high temperature back-off packer and Y341 packer started descent of piston, and it is descending to promote upper cone; With the slips expansion, slips anchoring is in internal surface of sleeve pipe, and packing element compresses the packing ring cavity; When pressure reached 16Mpa, slips anchoring was firm, and packing element expands to seal and accomplishes.When pressure reaches 20Mpa-22Mpa, send envelope instrument and instrument to put aside.The ball seat of landing ball seat 5 is struck off.Trip out steam injection string under the tubing string of giving up, change behind the notes vapour and take out production.
The above is merely the schematic specific embodiment of the utility model, is not in order to limit the scope of the utility model.Any those skilled in the art, equivalent variations of under the prerequisite of design that does not break away from the utility model and principle, having done and modification all should belong to the scope that the utility model is protected.
Claims (8)
1. water blockoff one tubing string is annotated in a heavy oil wells choosing, it is characterized in that, said heavy oil wells choosing is annotated water blockoff one tubing string and is provided with two packers and telescopic compensator;
Said telescopic compensator is located between two said packers, and an end of said telescopic compensator is connected with an oil pipe;
The said packer of being located at the top is a back-off packer.
2. water blockoff one tubing string is annotated in heavy oil wells choosing as claimed in claim 1, it is characterized in that said telescopic compensator is provided with outer tube, inner sleeve and telescoping tube, and said outer tube is sheathed on outside the said inner sleeve, and said inner sleeve is sheathed on outside the said telescoping tube; Said inner sleeve comprises the first slip pipeline section and the second slip pipeline section; Said telescoping tube comprises first casing section and second casing section of mutual sheathed cooperation, and said first slip pipeline section and said first casing section and the said second slip pipeline section and said second casing section be the relative fixed setting respectively.
3. water blockoff one tubing string is annotated in heavy oil wells choosing as claimed in claim 2, it is characterized in that, is respectively equipped with the slipper seal structure between the said first slip pipeline section and the second slip pipeline section and the said outer tube inboard.
4. water blockoff one tubing string is annotated in heavy oil wells choosing as claimed in claim 2, it is characterized in that, is respectively equipped with pin feature between said outer tube and the said first slip pipeline section and the second slip pipeline section.
5. water blockoff one tubing string is annotated in heavy oil wells choosing as claimed in claim 1, it is characterized in that the said back-off packer of being located at the top is a Y445 high temperature back-off packer, and the said packer of being located at the bottom is the Y341 packer.
6. water blockoff one tubing string is annotated in heavy oil wells choosing as claimed in claim 1, it is characterized in that, said heavy oil wells choosing is annotated water blockoff one tubing string bottom and is provided with the landing ball seat.
7. water blockoff one tubing string is annotated in heavy oil wells choosing as claimed in claim 1, it is characterized in that, said heavy oil wells choosing is annotated its bottom of water blockoff one tubing string and is provided with plug, and is provided with the oil recovery valve between said two packers.
8. water blockoff one tubing string is annotated in heavy oil wells choosing as claimed in claim 1, it is characterized in that said telescoping tube column top is connected with said oil pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202473256U CN202560115U (en) | 2012-05-29 | 2012-05-29 | Selective injection and water plugging integrated pipe column for thickened oil well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202473256U CN202560115U (en) | 2012-05-29 | 2012-05-29 | Selective injection and water plugging integrated pipe column for thickened oil well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202560115U true CN202560115U (en) | 2012-11-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202473256U Expired - Fee Related CN202560115U (en) | 2012-05-29 | 2012-05-29 | Selective injection and water plugging integrated pipe column for thickened oil well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202560115U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966339A (en) * | 2012-12-09 | 2013-03-13 | 李运柱 | Insertion pipe type release separate-layer water injection string and operation process thereof |
| CN104358524A (en) * | 2014-11-17 | 2015-02-18 | 杰瑞能源服务有限公司 | Coiled tubing speed pipe column and liquid draining and gas collecting method |
| CN113914813A (en) * | 2021-09-28 | 2022-01-11 | 四川省威沃敦化工有限公司 | Small-diameter water plugging tool |
-
2012
- 2012-05-29 CN CN2012202473256U patent/CN202560115U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966339A (en) * | 2012-12-09 | 2013-03-13 | 李运柱 | Insertion pipe type release separate-layer water injection string and operation process thereof |
| CN102966339B (en) * | 2012-12-09 | 2015-02-04 | 李运柱 | Insertion pipe type release separate-layer water injection string and operation process thereof |
| CN104358524A (en) * | 2014-11-17 | 2015-02-18 | 杰瑞能源服务有限公司 | Coiled tubing speed pipe column and liquid draining and gas collecting method |
| CN113914813A (en) * | 2021-09-28 | 2022-01-11 | 四川省威沃敦化工有限公司 | Small-diameter water plugging tool |
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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: 20121128 Termination date: 20210529 |