CN108386169A - Inject contradiction intense adjustment process pipe string in well section - Google Patents
Inject contradiction intense adjustment process pipe string in well section Download PDFInfo
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- CN108386169A CN108386169A CN201810094906.2A CN201810094906A CN108386169A CN 108386169 A CN108386169 A CN 108386169A CN 201810094906 A CN201810094906 A CN 201810094906A CN 108386169 A CN108386169 A CN 108386169A
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- packer
- contradiction
- water distribution
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- 238000000034 method Methods 0.000 title claims abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 71
- 238000002347 injection Methods 0.000 claims abstract description 34
- 239000007924 injection Substances 0.000 claims abstract description 34
- 239000010985 leather Substances 0.000 claims abstract description 29
- 230000035699 permeability Effects 0.000 claims abstract description 9
- 238000012986 modification Methods 0.000 claims abstract description 7
- 230000004048 modification Effects 0.000 claims abstract description 7
- 238000012856 packing Methods 0.000 claims description 8
- 239000011229 interlayer Substances 0.000 claims description 7
- 230000000903 blocking effect Effects 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims 1
- 239000004615 ingredient Substances 0.000 description 10
- 239000007788 liquid Substances 0.000 description 10
- 238000004064 recycling Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 239000010410 layer Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/20—Displacing by water
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
Contradiction intense adjustment process pipe string in a kind of injection well section of the application offer, including：Casing, water distribution ball injector, the first packer, the second packer, the first leather cup, receives ball sliding sleeve and silk plug at oil pipe.Oil pipe forms first annular space with casing.Have to adjust inside water distribution ball injector and block up ball, water distribution ball injector, which can will be adjusted to block up after ball is distributed to first annular space, carries out water injectivity profile modification.First packer is positioned close to the top of the water distribution ball injector of well head, and has flow-guiding channel, and flow-guiding channel can be connected with first annular space.Second packer is arranged between two neighboring water distribution ball injector, the stratum for separating different permeabilities.First leather cup is arranged far from the lower section of the water distribution ball injector of well head, for stifled ball will to be adjusted to be limited in the first annular space that the first packer and the first leather cup are formed.It receives ball cunning to be set on above the first leather cup, the tune in first annular space can be blocked up ball and be recycled in oil pipe.Silk plug is arranged in the end of oil pipe.
Description
Technical field
The application belongs to technical field of petroleum extraction, and in particular to contradiction intense adjustment process duct in a kind of injection well section
Column.
Background technology
Currently, many water filling blocks in Liaohe Oil Field, which can use big section to close note, closes the development scheme adopted.Due to the oil reservoir number of plies is more,
Interlayer is small, while being limited by power tool, and machinery dispensing technology can only at most realize Pyatyi to six stage layered water fillings at present,
In face of the oil reservoir of tens substratums easily, it can not accomplish ultimate attainment layering, the multiple substratums that permeability can only be closer to divide one into
Section carries out subsection water injection.
But with the extension in subsection water injection period, section internal difference abnormity at, sometimes result in injection water and advance by leaps and bounds, waterflooding effect
Difference.In in injecting interval, hypotonic substratum cannot effectively start, cause the measure of oil well intense adjustment that can not play a role.
Invention content
In order to overcome the drawbacks described above of the prior art, technical problem to be solved by the invention is to provide a kind of injection well sections
Ball injection profile control technology can be combined by interior contradiction intense adjustment process pipe string with outlook of separate layer water injection, be solved in section
It is particularly thorny, the undesirable problem of waterflooding effect.
The specific technical solution of the present invention is：
Contradiction intense adjustment process pipe string in a kind of injection well section of present invention offer, including：
Casing；
Oil pipe, the oil pipe is set in the inside of described sleeve pipe, and forms first annular space with described sleeve pipe；
The multiple water distribution ball injectors being connected on the oil pipe, it is internal have to adjust block up ball, the water distribution ball injector can will
The tune blocks up after ball is distributed to the first annular space and carries out water injectivity profile modification；
First packer, is positioned close to the top of the water distribution ball injector of well head, and first packer has water conservancy diversion
Channel, the flow-guiding channel can be connected with the first annular space；
Second packer is arranged between two neighboring water distribution ball injector, the stratum for separating different permeabilities；
First leather cup is arranged far from the lower section of the water distribution ball injector of well head, for adjusting stifled ball to be limited in institute by described
It states in the first annular space that the first packer and first leather cup are formed；
Tune in the first annular space can be blocked up ball recycling by the receipts ball sliding sleeve being arranged above first leather cup
In to the oil pipe；
Silk plug is arranged in the end of the oil pipe.
In one embodiment, the water distribution ball injector includes：
Central tube, the central tube are connected to by top connection and lower contact on the oil pipe respectively, on the central tube
Offer through-hole；
Housing is set in outside the central tube, and with the central, tubular at the second annular space, the housing it is upper
End is connect by shear pin with the top connection, and the lower end of the housing is provided with abutting part, is arranged in second annular space
There are fixing piece, the fixing piece to be fixedly connected with the housing and the central tube, and second annular space is divided into
Three annular spaces and fourth annular space, the third annular space block up ball, the fourth annular space and institute for accommodating adjust
Through-hole is stated to be connected；
Distributing tap is arranged on the central tube, is used for the water filling into the first annular space.
In one embodiment, second packer is set when the oil pipe is suppressed, in the first annular sky
In unseal when suppressing.
In one embodiment, second packer is set when the oil pipe is suppressed, and is not suppressed in the oil pipe
When unseal.
In one embodiment, the packing element diameter of second packer is less than or equal to 90 millimeters, the length of the packing element
Degree is more than 1.5 meters.
In one embodiment, the receipts ball sliding sleeve is device in one-way on state, is closed when being suppressed in the oil pipe,
It is opened when being suppressed in the first annular space.
In one embodiment, contradiction intense adjustment process pipe string further includes the second leather cup, institute in the injection well section
The second leather cup is stated to be arranged between the water distribution ball injector in first packer and close to well head.
In one embodiment, in the injection well section contradiction intense adjustment process pipe string further include the first centralizer and
Second centralizer, first centralizer are arranged in the top of first packer, and second centralizer is arranged described
Between first leather cup and the silk plug.
In one embodiment, the water distribution ball injector is opposite with the position of stratum of water filling is needed.
In one embodiment, second packer setting is at the adjacent interlayer needed between the stratum of water filling.
By above technical solution, the advantageous effect of the application is：
With reference to following description and accompanying drawings, the particular implementation of the application is disclosed in detail, specifies the original of the application
Reason can be in a manner of adopted.It should be understood that presently filed embodiment is not so limited in range.In appended power
In the range of the spirit and terms that profit requires, presently filed embodiment includes many changes, modifications and is equal.
The feature for describing and/or showing for a kind of embodiment can be in a manner of same or similar one or more
It is used in a other embodiment, it is combined with the feature in other embodiment, or substitute the feature in other embodiment.
It should be emphasized that term "comprises/comprising" refers to the presence of feature, one integral piece, step or component when being used herein, but simultaneously
It is not excluded for the presence or additional of one or more other features, one integral piece, step or component.
Description of the drawings
Attached drawing described here is only used for task of explanation, and is not intended to limit model disclosed in the present application in any way
It encloses.In addition, the shape and proportional sizes etc. of each component in figure are only schematical, it is used to help the understanding to the application, and
It is not the specific shape and proportional sizes for limiting each component of the application.Those skilled in the art, can under teachings of the present application
Implement the application to select various possible shapes and proportional sizes as the case may be.In the accompanying drawings：
Fig. 1 is the structural schematic diagram of contradiction intense adjustment process pipe string in the injection well section of the application embodiment.
Fig. 2 is the structure of the water distribution ball injector of contradiction intense adjustment process pipe string in the injection well section of the application embodiment
Schematic diagram.
The reference numeral of the figures above：1, casing；2, oil pipe；3, first annular space；4, water distribution ball injector；41, it adjusts stifled
Ball；42, central tube；43, top connection；44, lower contact；45, through-hole；46, housing；47, shear pin；48, abutting part；49, fixing piece；
410, the second annular space；411, third annular space；412, fourth annular space；5, the first packer；6, the second packer；
7, the first leather cup；8, ball sliding sleeve is received；9, silk plug；10, the second leather cup；11, the first centralizer；12, the second centralizer；100, water filling
Stratum；200, interlayer
Specific implementation mode
Below in conjunction with the attached drawing in the application embodiment, the technical solution in the application embodiment is carried out clear
Chu is fully described by, it is clear that described embodiment is only a part of embodiment of the application, rather than whole realities
Apply mode.Based on the embodiment in the application, those of ordinary skill in the art institute without creative efforts
The every other embodiment obtained, shall fall in the protection scope of this application.
It should be noted that when element is referred to as " being set to " another element, it can be directly on another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement for illustrative purposes only, are not offered as being unique embodiment.
Unless otherwise defined, all of technologies and scientific terms used here by the article and belong to the technical field of the application
The normally understood meaning of technical staff is identical.The term used in the description of the present application is intended merely to description tool herein
The purpose of the embodiment of body, it is not intended that in limitation the application.Term as used herein "and/or" includes one or more
Any and all combinations of relevant Listed Items.
As shown in Figure 1, contradiction intense adjustment process pipe string in a kind of injection well section of the application offer, the process pipe string packet
It includes：Casing 1, oil pipe 2, the multiple water distribution ball injectors 4 being connected on the oil pipe 2, the first packer 5, the second packer 6,
One leather cup 7 receives ball sliding sleeve 8 and silk plug 9.The oil pipe 2 is set in the inside of described sleeve pipe 1, and is formed with described sleeve pipe 1
First annular space 3.4 inside of multiple water distribution ball injectors, which has to adjust, blocks up ball 41, and described adjust can be blocked up ball 41 by the water distribution ball injector 4
Water injectivity profile modification is carried out after being distributed to the first annular space 3.First packer 5 is positioned close to the water distribution ball injector 4 of well head
Top, first packer 5 have flow-guiding channel (not shown), the flow-guiding channel can be with the first annular sky
Between 3 be connected.Second packer 6 is arranged between two neighboring water distribution ball injector 4, the stratum for separating different permeabilities.
First leather cup 7 is arranged far from the lower section of the water distribution ball injector 4 of well head, for adjusting stifled ball 41 to be limited in first envelope by described
Every in the first annular space 3 that device 5 and first leather cup 7 are formed.Ball sliding sleeve 8 is received to be arranged above first leather cup 7,
Can the tune in the first annular space 3 ball 41 be blocked up to be recycled in the oil pipe 2.Silk plug 9 is arranged at the end of the oil pipe 2
End.
Contradiction intense adjustment process pipe string, first will be under the process pipe string in water injectivity profile modification in the injection well section of the application
To after purpose of horizon, into oil pipe 2, injection liquid is suppressed, and is set the first packer 5 and the second packer 6, is then proceeded to oil
Liquid is injected in pipe 2 to suppress, the release of water distribution ball injector 4 is made to adjust water filling after stifled ball 41, adjusts stifled ball 41 can in first annular space 3
Absorbed water by force the perforation holes (not shown) on stratum with automatic plugging.When water filling terminates to need carry out measure adjustment or plays down tube
When column, liquid backwash can be injected into first annular space 3 using cementing truck, liquid can pass through the water conservancy diversion of the first packer 5
Channel enters first annular space 3, and the second packer 6 is due to the effect packing element retraction of fluid pressure in casing 1, the second envelope at this time
It is unsealed every device 6, receives ball sliding sleeve 8 and also opened under the action of hydraulic pressure, adjust stifled ball 41 that can be recycled in oil inlet pipe 2 by receiving ball sliding sleeve 8,
It returns with well-flushing liquid and is recycled in the ball collecting device of well head.After adjusting stifled 41 all recycling of ball, you can carry out next step tubing string
Operation.Such well-flushing recycling that tune can be realized and block up ball 41 avoids the tune stifled delay of ball 41 underground and impacts.
Contradiction intense adjustment process pipe string can utilize the second packer 6 that permeability is close in the injection well section of the application
Layer be divided into different series of strata, then water distribution ball injector 4 is utilized quantify water distribution to each series of strata, adjusts stifled ball 41 can be with automatic plugging section
Interior high permeability formation borehole carries out secondary intense adjustment to intake profile.
In the present embodiment, casing 1 extends along longitudinally, and perforation holes are offered on casing 1.Oil pipe 2 is set in
The inside of casing 1, and first annular space 3 is formed with casing 1, the end of oil pipe 2 can be provided with silk plug 9.Water distribution ball injector 4
It can be connected on oil pipe 2, and opposite with 100 position of stratum of water filling is needed.It can be equipped in the inside of water distribution ball injector 4
A certain number of adjust blocks up balls 41, which, which is blocked up ball 41, is distributed to water injectivity profile modification behind first annular space 3.It should be noted that
The selection that the tune blocks up ball 41 needs the water injected to measure oil well to be sampled chemical examination, and detection injection water is in underground target zone position
The density value at place chooses the tune exactly matched with its density and blocks up ball 41.It needs to choose simultaneously more straight than the perforation holes of casing 1
The tune of the big 2-4mm of diameter blocks up ball 41, to ensure to adjust stifled ball 41 can keep off outside borehole, without entering stratum.In addition, will also be according to suction
The information of water section determines each layer of pitching quantity, and it is perforation on casing 1 to launch adjust the quantity of stifled ball 41 in general
0.8-1 times or so of blasthole number.
First packer 5 can be positioned close to the top of the water distribution ball injector 4 of well head.Because its working environment needs are born
Unidirectional pressure difference, so the first packer 5 must have certain bearing capacity.First packer 5 can be Y type packers,
First packer 5 has flow-guiding channel, and the flow-guiding channel can be connected with the first annular space 3, in this way to first
When injection liquid is suppressed in annular space 3, liquid can enter first annular space 3 by the flow-guiding channel of the first packer 5
It is interior.
Second packer 6 can be arranged between two neighboring water distribution ball injector 4, and can set and need water filling adjacent
Stratum 100 between interlayer 200 at, the stratum for different permeabilities in compartmented.Preferably, second packer 6 can
To be K-type (expanding) packer.Second packer 6 can be set when the oil pipe 2 is suppressed using this kind of packer,
The second packer 6 is unsealed when being suppressed in the first annular space 3, so that tune is blocked up ball 41 free in first annular space 3
Movement, is allocated according to the difference of in-place permeability, and then blocks the perforation holes on casing 1.Or second packer 6
It can also be unsealed when oil pipe 2 is not suppressed, same technique effect can also be played, those skilled in the art can basis
Scene actual needs selects the second packer 6 of different deblocking modes, and the application is not intended to be limited in any this.
Preferably, the packing element diameter of second packer 6 is less than or equal to 90 millimeters, it is designed to small less than or equal to 90 millimeters
Diameter makes the second packer 6 have preferable handling capacity, can be directed to some casing deformation wells, and the tubing string is equally applicable.It is described
The packing element length of second packer 6 is more than 1.5 meters, on the one hand, alternate thin beds reservoir interlayer depauperation, conventional packer is by operation
Limitation, away from 2 meters or more, long packing element packer of the length more than 1.5 meters may be implemented to block small interlayer 200 card envelope,
Improve closure success rate.
First leather cup 7 is arranged far from the lower section of the water distribution ball injector 4 of well head, for adjusting stifled ball 41 to be limited in institute by described
It states in the first annular space 3 that the first packer 5 and first leather cup 7 are formed.Ball sliding sleeve 8 is received to be arranged in first leather cup
7 top is recycled to for the tune in the first annular space 3 to be blocked up ball 41 in the oil pipe 2.It should be noted that should
It is usually device in one-way on state to receive ball sliding sleeve 8, is closed when can be suppressed in the oil pipe 2, in the first annular space 3
It is just opened when inside suppressing.When into first annular space 3, fluid injection is suppressed, receiving ball sliding sleeve 8 can open, and adjust stifled ball 41 can at this time
Ball sliding sleeve 8 is received to enter with liquid, then recycling is carried out by oil pipe 2 and adjusts stifled ball 41 to well head.
Further, attached drawing 2 is please referred to, the water distribution ball injector 4 includes：Central tube 42, housing 46 and distributing tap
(not shown).The central tube 42 is connected to by top connection 43 and lower contact 44 on the oil pipe 2 respectively, the center
Through-hole 45 is offered on pipe 42.
Housing 46 is set in outside the central tube 42, and forms the second annular space 410 with the central tube 42, described outer
The upper end of set 46 is connect by shear pin 47 with the top connection 43, and the lower end of the housing 46 is provided with abutting part 48, and described the
Fixing piece 49 is provided in second ring space 410, the fixing piece 49 is fixedly connected with the housing 46 and the central tube 42,
And second annular space 410 is divided into third annular space 411 and fourth annular space 412, the third annular space
411 block up ball 41 for accommodating adjust, and the fourth annular space 412 is connected with the through-hole 45.Distributing tap is arranged in described
On heart pipe 42, it to be used for the water filling into the first annular space 3.
The liquid injected from oil pipe 2 can flow into central tube 42, then flow into Fourth Ring from the through-hole 45 of central tube 42
Shape space 412, since fixing piece 49 is fixedly connected with central tube 42 and housing 46, the liquid in fourth annular space 412 can only
The abutting part 48 of housing 46 is compressed, drives housing 46 to move downward, housing 46 cuts shear pin 47 during moving downward, outside
Set 46 and the disengaging of top connection 43, the tune for exposing third annular space 411 block up ball 41, and it is to be released to casing 1 to adjust block up ball 41 at this time
With oil pipe 2 formed first annular space 3 in, then can in well tripping in measurement and adjustment instrument (not shown), water distribution ball injector 4
Distributing tap water filling into first annular space 3 can be passed through.
In addition, in the injection well section contradiction intense adjustment process pipe string can also include the second leather cup 10, described second
Leather cup 10 is arranged between the water distribution ball injector 4 in first packer 5 and close to well head.Second leather cup 10 and the first skin
Bowl 7 matches the movement section that can be limited and adjust and block up ball 41, and tune stifled ball 41 in top is non-rising, does not interfere with the first packer 5
It sets, ball sliding sleeve 8 is received in lower part cooperation, the recycling for adjusting stifled ball 41 may be implemented, it is ensured that the deblocking for not interfering with tubing string causes to unseal
The load becomes large.
In addition to this, contradiction intense adjustment process pipe string can also include the first centralizer 11 and the in the injection well section
Two centralizers 12, first centralizer 11 are arranged in the top of first packer 5, and the setting of the second centralizer 12 exists
Between first leather cup 7 and the silk plug 9.First centralizer 11 and the second centralizer 12 may insure that the tubing string is placed in the middle, keep away
Exempt from when hole deviation is larger, oil pipe 2 is attached on casing 1, causes first annular space 3 different, adjusts stifled ball 41 can only be to 1 perforation of casing
The unilateral side of borehole is blocked.When blocking up ball 41 at the same time it can also avoid recycling from adjusting, stifled ball 41 is adjusted to be stuck in first annular space 3 not
It can recycle into receipts ball sliding sleeve 8.
It should be noted that casing 1 provided in this embodiment, oil pipe 2 etc. can select any appropriate existing construction.For
It is clearly briefly described the technical solution that the present embodiment is provided, no longer above-mentioned part will be repeated herein, specification is attached
Figure has also carried out corresponding simplification.However, it should be understood that therefore the present embodiment is not restricted in range.
Herein cited any digital value all include between lower limiting value to upper limit value with the lower value of an incremented and
The all values of upper value, there are the intervals of at least two units between any lower value and any much higher value.For example, such as
Fruit elaborates that the quantity of component or the value of process variable (such as temperature, pressure, time etc.) are from 1 to 90, preferably from 20
To 80, more preferably from 30 to 70, then purpose is arrived in order to illustrate also clearly listing such as 15 to 85,22 in the specification
68,43 to 51,30 to 32 is equivalent.For the value less than 1, suitably think that a unit is 0.0001,0.001,0.01,0.1.
These are only intended to the example clearly expressed, it is believed that the numerical value enumerated between minimum and peak is possible to
Combination is all expressly set forth in the specification in a similar manner.
Unless otherwise indicated, all ranges all include all numbers between endpoint and endpoint.It is used together with range
" about " or " approximation " be suitable for two endpoints of the range.Thus, " about 20 to 30 " are intended to covering " about 20 to about
30 ", including at least the endpoint indicated.
All articles and reference disclosed, including patent application and publication, for various purposes by quoting knot
Together in this.The term " substantially by ... constitute " for describing combination should include identified element, ingredient, component or step and reality
Other elements, ingredient, component or the step of the basic novel feature of the combination are not influenced in matter.Using term "comprising" or
" comprising " describes the combination of element here, ingredient, component or step it is also contemplated that substantially by these elements, ingredient, component
Or the embodiment that step is constituted.Here by using term " can with ", it is intended to illustrate that " can with " includes described any
Attribute is all optional.
Multiple element, ingredient, component or step can be provided by single integrated component, ingredient, component or step.Optionally
Ground, single integrated component, ingredient, component or step can be divided into multiple element, ingredient, component or the step of separation.It is used for
The open "a" or "an" for describing element, ingredient, component or step is not said to exclude other elements, ingredient, component
Or step.
It should be understood that above description is to illustrate rather than to be limited.By reading above-mentioned retouch
It states, many embodiments and many applications except the example provided all will be aobvious and easy for a person skilled in the art
See.Therefore, the range of this introduction should not be determined with reference to foregoing description, but should with reference to preceding claims and this
The full scope of the equivalent that a little claims are possessed determines.For comprehensive purpose, all articles and with reference to including special
The disclosure of profit application and bulletin is all by reference to being incorporated herein.Theme disclosed herein is omitted in preceding claims
Any aspect is not intended to abandon the body matter, also should not be considered as applicant the theme is not thought of as it is disclosed
Apply for a part for theme.
Claims (10)
1. contradiction intense adjustment process pipe string in a kind of injection well section, which is characterized in that including：
Casing；
Oil pipe, the oil pipe is set in the inside of described sleeve pipe, and forms first annular space with described sleeve pipe；
The multiple water distribution ball injectors being connected on the oil pipe, internal that there is tune to block up ball, the water distribution ball injector energy will be described
It adjusts to block up after ball is distributed to the first annular space and carries out water injectivity profile modification；
First packer is positioned close to the top of the water distribution ball injector of well head, and first packer has flow-guiding channel,
The flow-guiding channel can be connected with the first annular space；
Second packer is arranged between two neighboring water distribution ball injector, the stratum for separating different permeabilities；
First leather cup is arranged far from the lower section of the water distribution ball injector of well head, for blocking up ball and being limited in described the described adjust
In the first annular space that one packer and first leather cup are formed；
Tune in the first annular space can be blocked up ball and be recycled to institute by the receipts ball sliding sleeve being arranged above first leather cup
It states in oil pipe；
Silk plug is arranged in the end of the oil pipe.
2. contradiction intense adjustment process pipe string in injection well section according to claim 1, which is characterized in that the water distribution is thrown
Ball device includes：
Central tube, the central tube are connected to by top connection and lower contact on the oil pipe respectively, are opened up on the central tube
There is through-hole；
Housing is set in outside the central tube, and with the central, tubular at the second annular space, the upper end of the housing is logical
It crosses shear pin to connect with the top connection, the lower end of the housing is provided with abutting part, is provided in second annular space solid
Determine part, the fixing piece is fixedly connected with the housing and the central tube, and second annular space is divided into third ring
Shape space and fourth annular space, the third annular space are used for accommodating adjust and block up ball, and the fourth annular space leads to described
Hole is connected；
Distributing tap is arranged on the central tube, is used for the water filling into the first annular space.
3. contradiction intense adjustment process pipe string in injection well section according to claim 1, which is characterized in that second envelope
It sets when the oil pipe is suppressed every device, is unsealed when being suppressed in the first annular space.
4. contradiction intense adjustment process pipe string in injection well section according to claim 1, which is characterized in that second envelope
It sets when the oil pipe is suppressed every device, is unsealed when the oil pipe is not suppressed.
5. contradiction intense adjustment process pipe string in injection well section according to claim 1, which is characterized in that second envelope
It is less than or equal to 90 millimeters every the packing element diameter of device, the length of the packing element is more than 1.5 meters.
6. contradiction intense adjustment process pipe string in injection well section according to claim 1, which is characterized in that the receipts ball is slided
Set is device in one-way on state, closes when being suppressed in the oil pipe, is opened when being suppressed in the first annular space.
7. contradiction intense adjustment process pipe string in injection well section according to claim 1, which is characterized in that the injection well
Contradiction intense adjustment process pipe string further preferably includes the second leather cup in section, second leather cup setting in first packer and
Between the water distribution ball injector of well head.
8. contradiction intense adjustment process pipe string in injection well section according to claim 1, which is characterized in that the injection well
Contradiction intense adjustment process pipe string further includes the first centralizer and the second centralizer in section, and first centralizer is arranged described
The top of first packer, second centralizer are arranged between first leather cup and the silk plug.
9. contradiction intense adjustment process pipe string in injection well section according to claim 1, which is characterized in that the water distribution is thrown
Ball device is opposite with the position of stratum of water filling is needed.
10. contradiction intense adjustment process pipe string in injection well section according to claim 1, which is characterized in that described second
Packer setting is at the adjacent interlayer needed between the stratum of water filling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810094906.2A CN108386169B (en) | 2018-01-31 | 2018-01-31 | Fine adjustment process pipe column for contradiction in injection well section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810094906.2A CN108386169B (en) | 2018-01-31 | 2018-01-31 | Fine adjustment process pipe column for contradiction in injection well section |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108386169A true CN108386169A (en) | 2018-08-10 |
| CN108386169B CN108386169B (en) | 2020-09-08 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810094906.2A Active CN108386169B (en) | 2018-01-31 | 2018-01-31 | Fine adjustment process pipe column for contradiction in injection well section |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113338845A (en) * | 2020-02-18 | 2021-09-03 | 中国石油天然气股份有限公司 | Layered profile control tool and layered ball-throwing profile control tubular column |
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| US3895678A (en) * | 1974-07-08 | 1975-07-22 | Dresser Ind | Sealer ball catcher and method of use thereof |
| CN202391378U (en) * | 2012-01-13 | 2012-08-22 | 中国石油天然气股份有限公司 | Automatic ball injecting and receiving device for selective injection of casing deformation wells |
| CN202467796U (en) * | 2012-03-28 | 2012-10-03 | 中国石油天然气股份有限公司 | Sub-divisional water injection ball-launching profile control integrated pipe post for oil field water injection well |
| CN204457695U (en) * | 2014-12-31 | 2015-07-08 | 中国石油天然气股份有限公司 | A kind of high angle hole ball injection profile control and water injection integral pipe column |
| CN204457707U (en) * | 2014-12-29 | 2015-07-08 | 中国石油天然气股份有限公司 | Receipts system thrown by ball collecting device and ball injector and steel ball thereof |
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| US3895678A (en) * | 1974-07-08 | 1975-07-22 | Dresser Ind | Sealer ball catcher and method of use thereof |
| CN202391378U (en) * | 2012-01-13 | 2012-08-22 | 中国石油天然气股份有限公司 | Automatic ball injecting and receiving device for selective injection of casing deformation wells |
| CN202467796U (en) * | 2012-03-28 | 2012-10-03 | 中国石油天然气股份有限公司 | Sub-divisional water injection ball-launching profile control integrated pipe post for oil field water injection well |
| CN204457707U (en) * | 2014-12-29 | 2015-07-08 | 中国石油天然气股份有限公司 | Receipts system thrown by ball collecting device and ball injector and steel ball thereof |
| CN204457695U (en) * | 2014-12-31 | 2015-07-08 | 中国石油天然气股份有限公司 | A kind of high angle hole ball injection profile control and water injection integral pipe column |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113338845A (en) * | 2020-02-18 | 2021-09-03 | 中国石油天然气股份有限公司 | Layered profile control tool and layered ball-throwing profile control tubular column |
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| CN108386169B (en) | 2020-09-08 |
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