CN202249994U - Throwing-fishing-free separated layer water injection process pipe column - Google Patents
Throwing-fishing-free separated layer water injection process pipe column Download PDFInfo
- Publication number
- CN202249994U CN202249994U CN2011202650449U CN201120265044U CN202249994U CN 202249994 U CN202249994 U CN 202249994U CN 2011202650449 U CN2011202650449 U CN 2011202650449U CN 201120265044 U CN201120265044 U CN 201120265044U CN 202249994 U CN202249994 U CN 202249994U
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- water injection
- tubing string
- well
- water
- oil pipe
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- 238000002347 injection Methods 0.000 title claims abstract description 91
- 239000007924 injection Substances 0.000 title claims abstract description 91
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 91
- 238000000034 method Methods 0.000 title description 2
- 230000008569 process Effects 0.000 title description 2
- 238000005516 engineering process Methods 0.000 claims abstract description 18
- 238000012856 packing Methods 0.000 claims abstract description 13
- 238000004873 anchoring Methods 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 claims description 18
- 238000005266 casting Methods 0.000 claims description 15
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 238000009826 distribution Methods 0.000 abstract description 14
- 238000005259 measurement Methods 0.000 abstract 2
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 14
- 238000013461 design Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The utility model discloses a water injection well oil pipe subdivision layer water injection technology tubular column, this exempt from to throw and drag for layering water injection technology tubular column include well special screen pipe (8), two valve ball seats (7), anchoring device, packing device, oil pipe separator (3), cover and protect packer (2) and oil pipe post (1), and wherein, this tubular column still includes hydraulic control switch ration water injection mandrel (4), and each subassembly is fixed connection in proper order. The tubular column adopts a water distribution mode combining two functions of quantitative water distribution and intelligent water injection quantity allocation by a hydraulic control switch, can meet the requirement of multilayer subdivided layer water injection of a water injection well, also achieves the purpose of allocating the water injection quantity by using a steel wire throwing and fishing-free blanking plug, realizes the function of allocating and adjusting the water allocation quantity of any layer by using the separated layer water injection of an oil pipe without throwing and fishing, and solves the problem of difficult throwing and fishing measurement and allocation of the oil field or the problem of separate injection of the water injection well without throwing and fishing measurement and allocation conditions. The oil pipe separator matched with the pipe column is beneficial to pipe column deblocking and later-stage pipe column measure treatment for the water injection well corroded by scale, and the pipe column is simple in structure, safe and reliable.
Description
Technical field
The utility model relates to a kind of injection well tubing subdivision of reservoir water injection technology tubing string, particularly a kind of injection well tubing subdivision of reservoir casting and dragging free stratified injection water technology tubing string.
Background technology
Along with oil field development is goed deep into; The stratum becomes increasingly complex; Interlayer difference is big, closes to annotate or two sections ground of one-level are divided to annotate and can not be satisfied the production demand, and the subdivision of reservoir water filling has become and solves interlayer contradiction, improves between producing degree of reservoir, tap layer the effective measures of potentiality.
At present, the eccentric zonal injection technology technology of oil pipe has been used maturation in the oil field, satisfies the above demand of annotating well of dividing of two sections of one-levels or two-stage three-segment, has reached the purpose of subdivision of reservoir water filling, injecting enough water, injecting good water and effective water filling.Because the secondary pollution of part oil-field flooding pipeline, pit shaft tubing string and the fouling of water filling instrument, seriously corroded are implemented the eccentric zonal injection technology pulling survey of oil pipe and are joined difficulty, and pulling and running tool does not go, carries to come up down in oil pipe.
In recent years; The casting and dragging free separate injection tubing string is mainly by three types: a kind of is to be the quantitative water distribution separate injection tubing string of water distribution instrument with quantitative injection well downhole flow regulator or Quantitative water tap, and domestic quantitative its structural principle of water distribution separate injection tubing string is similar basically, and injection well downhole flow regulator carries water nozzle and directly is lowered to tubing string; Change control injection allocation amount by the pressure reduction before and after the water nozzle in the blanking plug during water filling; The injection allocation amount is always a steady state value, compares with the eccentric separate injection tubing string of conventional oil pipe, reduces pulling and surveys the number of times of joining; Prolong the period of validity of tubing string, improve to divide and annotate effect.If water nozzle is stung big or throttling spring failure, the injection allocation amount just changed, and no longer is steady state value when its deficiency was water filling, and allocating water injection rate more then needs the pulling blanking plug or propose separate injection tubing string in the well.Another kind is a concentric double pipe ground separate injection tubing string, and water injection rate is allocated by Ground Control, and accurately convenient, its deficiency is that the separate injection layer number is restricted, and can only reach two-stage three-segment.Another is that branch is annotated the intelligent allotment water pipe post of surveying, and once drops into blanking plug, can allocate water nozzle continuously; Compare with the eccentric separate injection tubing string of routine; Individual well test job efficient can improve 4/5ths, and weak point is exactly the cost height, and the scene is difficult to large scale application.
The utility model content
The purpose of the utility model provides a kind of casting and dragging free stratified injection water technology tubing string that comprises the quantitative injection well downhole flow regulator of novel hydraulic-control switch, solves oil field pulling survey and joins difficulty or do not have pulling to survey the water injection well branch notes difficult problem of the condition of joining.The water distribution mode that adopts two kinds of functions of quantitative water distribution and hydraulic control switch intelligent allocation water injection rate to combine; Can satisfy water injection well multilayer subdivision of reservoir water filling needs and reach again and exempt from, realize that oil pipe seperated layer water injection casting and dragging free surveys the function of the whole random layer water distribution quantity of auxiliary tone with wire Launching and Bailing blanking plug allotment water injection rate.The supporting oil pipe eliminator of tubing string, the tubing string measure that the water injection well of fouling corrosion is helped tubing string deblocking and later stage is handled, and tubular column structure is simple, convenient, safe and reliable.
The technical scheme that the utility model adopts is: casting and dragging free stratified injection water technology tubing string comprises the special-purpose screen casing 8 of well, two valve ball seat 7, anchoring device, packing device, oil pipe eliminator 3, cover guarantor's packer 2 and tubing string 1; This tubing string also comprises the quantitative injection well downhole flow regulator 4 of hydraulic control switch; The water distribution mode that adopts two kinds of functions of quantitative water distribution and hydraulic control switch intelligent allocation water injection rate to combine; Can satisfy water injection well multilayer subdivision of reservoir water filling needs and reach again and exempt from, realize that oil pipe seperated layer water injection casting and dragging free surveys the function of the whole random layer water distribution quantity of auxiliary tone with wire Launching and Bailing blanking plug allotment water injection rate; The quantitative injection well downhole flow regulator of the special-purpose screen casing 8 of above-mentioned well, two valve ball seat 7, hydraulic control switch 4, anchoring device, packing device, oil pipe eliminator 3, packer 2 protected by cover and tubing string 1 is fixedly connected sequentially.
Wherein, the special-purpose screen casing 8 of said well also can be composed of a fixed connection by plug 12 and screen casing 11.Said anchoring device can be the two-way anchor 9 of waterpower slips 6 or well.Said packing device can be water injection packer 5 or insert sealing device 10.Said insertion sealing device 10 is inserted into the said sealing location in the sealing drum 13 of presetting.Also be that screen casing, anchoring device, packing device all have two kinds of optional technical schemes.
For the better purpose that realizes the utility model, said tubing string can be installed the quantitative injection well downhole flow regulator 4 of many said hydraulic control switches of cover.
The advantage of the utility model is: this tubing string is installed the quantitative injection well downhole flow regulator of many cover hydraulic control switches; Not only realize the subdivision of reservoir water filling of conventional well level Four more than five sections; And annotate well (as: corrosion and scaling, deep-well, big gradient) etc. and can realize the water filling of oil pipe subdivision of reservoir not possessing the eccentric branch that divides the notes condition of oil pipe; No matter be that routine divides notes well or special branch notes well to realize that multistage multi-section multi-layer segments the function that notes are exempted from wire Launching and Bailing allotment water injection rate, improved the success rate of branch notes wells; This process pipe string is simple and reasonable for structure, and performance is safe and reliable; The allotment water injection rate is convenient, time saving and energy saving, the accurate error of data is little.
Below in conjunction with accompanying drawing the utility model is described further:
Description of drawings
Fig. 1 is the structural representation of first kind of embodiment of the utility model tubing string;
Fig. 2 is the structural representation of second kind of embodiment of the utility model tubing string.
The specific embodiment
The utility model casting and dragging free stratified injection water technology tubing string comprises the special-purpose screen casing 8 of well, two valve ball seat 7, anchoring device, packing device, oil pipe eliminator 3, cover guarantor's packer 2 and tubing string 1; This tubing string also comprises the quantitative injection well downhole flow regulator 4 of hydraulic control switch; The water distribution mode that adopts two kinds of functions of quantitative water distribution and hydraulic control switch intelligent allocation water injection rate to combine; Can satisfy water injection well multilayer subdivision of reservoir water filling needs and reach again and exempt from, realize that oil pipe seperated layer water injection casting and dragging free surveys the function of the whole random layer water distribution quantity of auxiliary tone with wire Launching and Bailing blanking plug allotment water injection rate; The quantitative injection well downhole flow regulator of the special-purpose screen casing 8 of above-mentioned well, two valve ball seat 7, hydraulic control switch 4, anchoring device, packing device, oil pipe eliminator 3, packer 2 protected by cover and tubing string 1 is fixedly connected sequentially.
Wherein, the special-purpose screen casing 8 of said well also can be composed of a fixed connection by plug 12 and screen casing 11.Said anchoring device can be the two-way anchor 9 of waterpower slips 6 or well.Said packing device can be water injection packer 5 or insert sealing device 10.Said insertion sealing device 10 is inserted into the said sealing location in the sealing drum 13 of presetting.Also be that screen casing, anchoring device, packing device all have two kinds of optional technical schemes.
For the better purpose that realizes the utility model, said tubing string can be installed the quantitative injection well downhole flow regulator 4 of many said hydraulic control switches of cover.
First kind of embodiment of the utility model is as shown in Figure 1.This tubing string by the quantitative injection well downhole flow regulator of the special-purpose screen casing 8 of well, two valve ball seat 7, hydraulic control switch 4, waterpower slips 6, water injection packer 5 oil pipe eliminators 3, packer 2 protected by cover and tubing string 1 well is lowered to the pit shaft design attitude from bottom to top by the working design floor-mounted; Oil pipe is suppressed 5 envelopes of water injection packer; Packing element is sealed in the oil jacket annular space; Each water filling interval is separated, become independently space.The construction back gets final product quantitative injection by the injection allocation amount, carries out the constant water filling by the constant device down-hole of the quantitative injection well downhole flow regulator 4 of hydraulic control switch earlier, and influence of fluctuations is not stressed; When needing to regulate water injection rate, suppress, after the hydraulic control switch is received the pressure sign indicating number identical with it, open or close just and can carry out the adjusting of water injection rate to hydraulic control switch injection pressure sign indicating number.Can carry out random layer and regulate, not limited by layer position and number of times.
Second kind of embodiment of the utility model is as shown in Figure 2.This tubing string by the quantitative injection well downhole flow regulator of plug 12, screen casing 11, hydraulic control switch 4, insert the two-way anchor of sealing device 10, well 9, oil pipe eliminator 3, packer 2 protected by cover and tubing string 1 is formed; When boring completion, sleeve pipe is preset sealing drum 13 and be installed in water filling layer circle, top and Di Jie in advance; Tubing string well is lowered to pit shaft from bottom to top by working design requirement floor-mounted; Insert sealing device 10 times after preset sealing drum 13 positions, be inserted into and preset in the sealing drum 13 and sealing is located, oil reservoir is separated into some intervals; Be lowered to the quantitative injection well downhole flow regulator 4 of hydraulic control switch in each interval, realize the above subdivision of reservoir water filling of two-stage three-segment.The construction back gets final product quantitative injection by the injection allocation amount, carries out the constant water filling by the constant device down-hole of the quantitative injection well downhole flow regulator 4 of hydraulic control switch earlier, and influence of fluctuations is not stressed; When needing to regulate water injection rate, suppress, after the hydraulic control switch is received the pressure sign indicating number identical with it, open or close just and can carry out the adjusting of water injection rate to hydraulic control switch injection pressure sign indicating number.Can carry out random layer and regulate, not limited by layer position and number of times.
When needing water to change, the direct deblocking of upper lifting pipe post proposes tubing string, if deblocking is not smooth, and rotation pipeline 1, tubing string proposes from oil pipe eliminator 3 turn-ofves.Then, well-flushing is lowered to fishing string again, pulls remaining tubing string out.
Claims (6)
1. casting and dragging free stratified injection water technology tubing string; Comprise the special-purpose screen casing (8) of well, two valve ball seat (7), anchoring device, packing device, oil pipe eliminator (3), cover guarantor's packer (2) and tubing string (1), it is characterized in that: this tubing string also comprises the quantitative injection well downhole flow regulator of hydraulic control switch (4); The special-purpose screen casing (8) of said well, two valve ball seat (7), the quantitative injection well downhole flow regulator of hydraulic control switch (4), anchoring device, packing device, oil pipe eliminator (3), cover guarantor's packer (2) and tubing string (1) are fixedly connected sequentially.
2. casting and dragging free stratified injection water technology tubing string according to claim 1 is characterized in that: the special-purpose screen casing of said well (8) is composed of a fixed connection by plug (12) and screen casing (11).
3. casting and dragging free stratified injection water technology tubing string according to claim 1 is characterized in that: said anchoring device is waterpower slips (6) or the two-way anchor of well (9).
4. casting and dragging free stratified injection water technology tubing string according to claim 1 is characterized in that: said packing device is water injection packer (5) or inserts sealing device (10).
5. casting and dragging free stratified injection water technology tubing string according to claim 4 is characterized in that: said insertion sealing device (10) is inserted into and presets sealing location in the sealing drum (13).
6. casting and dragging free stratified injection water technology tubing string according to claim 1 is characterized in that: said tubing string can be installed many cover quantitative injection well downhole flow regulators of said hydraulic control switch (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202650449U CN202249994U (en) | 2011-07-25 | 2011-07-25 | Throwing-fishing-free separated layer water injection process pipe column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202650449U CN202249994U (en) | 2011-07-25 | 2011-07-25 | Throwing-fishing-free separated layer water injection process pipe column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202249994U true CN202249994U (en) | 2012-05-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202650449U Expired - Lifetime CN202249994U (en) | 2011-07-25 | 2011-07-25 | Throwing-fishing-free separated layer water injection process pipe column |
Country Status (1)
| Country | Link |
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| CN (1) | CN202249994U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900409A (en) * | 2011-07-25 | 2013-01-30 | 中国石油天然气股份有限公司 | Throwing-fishing-free separated layer water injection process pipe column |
| CN103590796A (en) * | 2012-08-13 | 2014-02-19 | 大港油田集团有限责任公司 | Constant proportion dropping-fishing-free separated layer water injection technique tubular pipe and dropping-fishing-free quantitative water distributors |
-
2011
- 2011-07-25 CN CN2011202650449U patent/CN202249994U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900409A (en) * | 2011-07-25 | 2013-01-30 | 中国石油天然气股份有限公司 | Throwing-fishing-free separated layer water injection process pipe column |
| CN102900409B (en) * | 2011-07-25 | 2017-04-12 | 中国石油天然气股份有限公司 | Throwing-fishing-free separated layer water injection process pipe column |
| CN103590796A (en) * | 2012-08-13 | 2014-02-19 | 大港油田集团有限责任公司 | Constant proportion dropping-fishing-free separated layer water injection technique tubular pipe and dropping-fishing-free quantitative water distributors |
| CN103590796B (en) * | 2012-08-13 | 2017-06-13 | 大港油田集团有限责任公司 | Certainty ratio casting-and-fishing-free separated layer water injection process pipe string and casting and dragging free quantitative water distributor |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120530 |
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| CX01 | Expiry of patent term |