CN206158605U - Layering examination is crowded and is replaced sour acidizing integration tubular column and integration instrument thereof - Google Patents
Layering examination is crowded and is replaced sour acidizing integration tubular column and integration instrument thereof Download PDFInfo
- Publication number
- CN206158605U CN206158605U CN201621190310.5U CN201621190310U CN206158605U CN 206158605 U CN206158605 U CN 206158605U CN 201621190310 U CN201621190310 U CN 201621190310U CN 206158605 U CN206158605 U CN 206158605U
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- track
- sour
- valve seat
- examination
- layering
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Abstract
The utility model discloses a layering examination is crowded and is replaced sour acidizing integration tubular column and integration instrument thereof that oil field water injection well used. Wherein an organic whole tubular column includes water conservancy anchor, packer and hollow water injection mandrel, and water conservancy anchor, packer and hollow water injection mandrel top -down connect gradually through oil pipe, passes through oil pipe connection layering examination in the below of hollow water injection mandrel and crowds and replace acid acidizing integration instrument. The integration instrument includes crowded sour disk seat, replaces sour disk seat, spring holder and on -off mechanism, crowds sour disk seat, installs in the inside of replacing sour disk seat with spring holder top -down threaded connection in proper order, on -off mechanism for the acid disk seat. Use the utility model discloses can simplify the construction procedure of water injection well separate layer acid treatment, realize next time tubular column and can accomplish the crowded function that can accomplish the later stage for sour acidizing again of examination in earlier stage. The utility model discloses showing and reducing manufacturing cost, shortening the activity duration, alleviateing operation workman's intensity of labour, having fine result of use.
Description
Technical field
The utility model is related to water injection well in oil fields separate layer acid treatment equipment, and particularly layering examination is squeezed integrated with for sour acidifying
Tubing string and its integrated tool, can simplify the operational procedure of water injection well layering acidifying, reduce production cost.
Background technology
With the needs of the fine waterflooding extraction in oil field, separate water injection well increasingly increases, water injection well layering acidifying proportion also with
Increase.But the tubing string of the Y341 packers that separate layer acid treatment at present is adopted+sliding sleeve composition and two kinds of Y221 packers composition
Separate layer acid treatment tubing string also exists and denounces.According to water injection well acidizing treatment standard, first examination should be carried out to target zone before acidifying and be squeezed
Going out target zone uptake and strata pressure, then open sleeve gate carries out, for acid, acid solution being replaced to oil reservoir near sites, finally closes
Close sleeve gate to be acidified.And above-mentioned two sets of separate layer acid treatment tubing strings it is equal in the presence of one-trip string can not realize both being layered examination squeeze,
The working procedure of acid acidifying can be replaced again.
If problem both ways can not deposited for acid：One is that acidifying initial stage operation pressure goes up not down increase construction risk；Two
It is that pit shaft sewage enters formation influence acidifying final effect.If wanting, completing i.e. layering examination squeezes and can must adopt Y341 for acid acidifying
Packer+sliding sleeve, and under enter tubing string twice.So construction substantially increases construction cost, every mouthful of well of Conservative estimation increase operation into
This 6.5 ten thousand yuan, and the activity duration is extended, every mouthful of well at least increases the activity duration 24 hours.Layering examination for many years is squeezed and replaced
The integration of acid acidifying is never solved well, causes hypotonic block with unclear layer position separate layer acid treatment high cost
Problem.
With the continuous lifting of Geologic Requirements, separate layer acid treatment well it is increasing, be to change layering examination at present to squeeze and for acid
Acidifying enters the present situation of tubing string twice under needing, development one kind layering examination is squeezed and replaces acid acidifying integrated tool with tubing string with the use of gesture
Must go.
The content of the invention
The purpose of this utility model is to provide layering examination and squeezes with for acid acidifying integrated pipe column and its integrated tool, changes
The present situation of tubing string twice is squeezed and entered under needing for acid acidifying in layering examination at present, realizes that lower one-trip string is managed twice under just solving at present
The water injection well layering examination that post could be solved is squeezed and the problem for acid acidifying, reduces production cost.
The technical solution of the utility model is as follows：
Layering examination is squeezed includes hydraulic anchor, packer and hollow water distribution apparatus, hydraulic anchor, packing with for acid acidifying integrated pipe column
Device and hollow water distribution apparatus pass through oil pipe and are sequentially connected, and are squeezed by oil pipe connection layering examination in the lower section of hollow water distribution apparatus
Integrated tool is acidified with for acid.
Squeeze for layering examination and squeeze with the layering examination for acid acidifying integrated pipe column and include squeezing for acid acidifying integrated tool
Sour valve seat, for sour valve seat, spring base and switching mechanism, squeeze acid valve seat, for sour valve seat and spring base from top to bottom successively screw thread company
Connect, switching mechanism is arranged on for the inside of sour valve seat；Lower case for sour valve seat is provided with track, and the connecting rod of switching mechanism is inserted
It is mounted in track and can slides in track in the presence of fluid pressure in integrated pipe column.
Notable using effect of the present utility model is：This instrument is by replacing what sour valve seat and switching mechanism were switched by track
Mode realizes that being layered examination squeezes the function integrated with sour acidifying is replaced.Switching mechanism is by the connecting rod on piston on for sour valve seat
Switch in track, realize the closing of integrated tool inner passage to the conversion opened.This instrument does not put into crowded acid valve ball
In the case of, squeeze into clear water from ground to integrated pipe column and boost to 0.7-1MPa, the spring for just compressing originally is pressed again
Contracting, realizes closing track a to the movement of commutation track b；When the pressure in tubing string is laid down, spring pressure release is realized from changing
To track b to the movement for opening track c, that is, tool interior pathway closure is completed to the conversion opened.Layering examination is squeezed and replaces acid
Hydraulic anchor, K344 types packer and hollow water distribution apparatus in acidifying integrated tool and integrated pipe column is used cooperatively, realization
Lower one-trip string can complete the examination of early stage and squeeze and can complete function of the later stage for acid acidifying.The utility model is significantly reduced
Production cost, shortens the activity duration, alleviates the labour intensity of operating worker, with significant economic benefit and society's effect
Benefit.
Description of the drawings
Fig. 1 is that layering examination is squeezed and the structural representation for acid acidifying integrated pipe column.
Fig. 2 is the structural representation that layering examination is squeezed and is closed for acid acidifying integrated tool.
Fig. 3 is for the structural representation of sour valve seat in Fig. 2.
Specific embodiment
Below in conjunction with detailed description the utility model, protection domain of the present utility model is not limited.Described below is only
Preferred embodiment of the present utility model, other use equivalence changes of the present utility model, all should belong to protection of the present utility model
Scope.
Referring to Fig. 1, Fig. 2 and Fig. 3, layering examination is squeezed includes hydraulic anchor 1, packer 2 and sky with for acid acidifying integrated pipe column
Core injection well downhole flow regulator 3, hydraulic anchor 1, packer 2 and hollow water distribution apparatus 3 pass through oil pipe and are sequentially connected, in hollow water distribution apparatus 3
Lower section separate layer acid treatment integrated tool 4 is connected by oil pipe.Packer 2 is K344 type packers.
Squeeze for layering examination and squeeze with the layering examination for acid acidifying integrated pipe column and include squeezing for acid acidifying integrated tool
Sour valve seat 4.2, for sour valve seat 4.7, spring base 4.11 and switching mechanism, squeeze acid valve seat 4.2, for sour valve seat 4.7 and spring base
4.11 are threadedly coupled successively from top to bottom, and switching mechanism is arranged on for the inside of sour valve seat 4.7；For the lower case of sour valve seat 4.7
Body is provided with track 4.8, the connecting rod 4.6 of switching mechanism be inserted in track 4.8 and can in integrated pipe column fluid pressure
In the presence of in track 4.8 slide.Switching mechanism includes piston 4.4 and spring 4.9, and spring 4.9 is arranged on piston 4.4 and bullet
In the partial insertion track 4.8 that between spring abutment 4.11, connecting rod 4.6 traversed and be welded on the bottom of piston 4.4, expose piston 4.4.
Bearing 4.10 is also equipped between spring 4.9 and spring base 4.11, the bearing 4.10 is arranged in the inner chamber of spring base 4.11 simultaneously
It is threadedly coupled with spring base 4.11, the rotation of piston 4.4 can be made more flexible.Piston 4.4 is cylindrical body, and its top end cover is provided with
Flowing hole, is provided with single current valve seat and single current valve ball 4.3 in the tubular body of top, single current valve ball 4.3 is arranged on top end cover and single current
Between valve seat, on the tubular body wall below single current valve seat apopore 4.5 is provided with.Single current valve seat and single current valve ball 4.3 can be
During going into the well, the well liquid in pit shaft is flow through from single current valve seat, realize the balance of oil pipe inside and outside differential pressure, smoothly go into the well and energy
It is enough to realize that examination is squeezed and for acid.Apopore 4.5 at least provided with one, on the outer wall of the piston 4.4 of the upper and lower both sides of apopore 4.5
Sealing ring is provided with, realizes that examination is squeezed and for the sealing during acid.Top tube wall for sour valve seat 4.7 is provided with excessively stream chamber, the mistake
, more than the external diameter of piston 4.4, after spring 4.9 is upspring completely, apopore 4.5 is in the excessively stream chamber for the internal diameter in stream chamber.Track 4.8
It is Y type tracks, is made up of opening track c, closing track a and commutation track b, opens track c, closes track a and commutation track b
Be mutually communicated, open track c incline to the left from the top of commutation track b, the top of closing track a self-commutation track b to the right
Roll tiltedly, open track c and be longer than closing track a, commutate track b and the bottom insertion for replacing sour valve seat 4.7；Track 4.8 is provided with two
It is individual, be oppositely arranged in the both sides for the sour bottom tube wall of valve seat 4.7.The two ends inner chamber for squeezing acid valve seat 4.2 is provided with screw thread, middle part inner chamber
Taper to pushing up inner chamber, the taper to pushing up inner chamber in, superposed conical internal cavity coordinates with crowded sour valve ball 4.1.
The specific working procedure of the utility model is：
1st, enter integrated pipe column of the present utility model under, make hollow distributor 3 corresponding with the oil reservoir for needing acidifying；Under enter
During, layering examination is squeezed and the balance that oil pipe inside and outside differential pressure is realized for the single current valve ball 4.3 in acid acidifying integrated tool 4.
2nd, integrated pipe column is suppressed layering examination and is squeezed after in place from ground：When pressure reaches 0.7MPa in tubing string, packer 2
Set；When pressure reaches 0.7-1MPa, layering examination is squeezed and the piston 4.4 and connecting rod 4.6 of integrated tool 4 is acidified for acid by closing
Track a moves to commutation track b；Pressure is opened more than hollow water distribution apparatus during 1MPa 3, obtains the strata pressure of oil-yielding stratum.
3rd, pressure release：Packer 2 is unsealed when pressure is down to below 0.7MPa, is squeezed with layered examination and is replaced acid acidifying one chemical industry
The piston 4.4 of tool 4 moves to opening track c by commutation track b, that is, complete tool interior passage turning from closing to opening
Change.
4th, for acid, sleeve gate is opened, acid solution is replaced to the position of hollow water distribution apparatus 3 by pump truck.
5th, put into and squeeze acid valve ball 4.1, squeeze acid valve ball 4.1 and squeeze acid afterwards in place, packer 2 is sat again when pressure reaches 0.7MPa
Envelope, pressure is again turned on more than hollow water distribution apparatus during 1MPa 3, and such acid solution clamp-ons oil reservoir from the position of hollow water distribution apparatus 3.
Claims (10)
1. layering examination is squeezed and replaces acid acidifying integrated pipe column, including hydraulic anchor, packer and hollow water distribution apparatus, be it is characterized in that, water
Power anchor, packer and hollow water distribution apparatus pass through oil pipe and are sequentially connected, and are connected by oil pipe in the lower section of hollow water distribution apparatus
Connect layering examination to squeeze and replace acid acidifying integrated tool.
2. layering examination as claimed in claim 1 is squeezed with for acid acidifying integrated pipe column, be it is characterized in that, the packer is K344
Type packer.
3. it is crowded crowded integrated with for sour acidifying with layering examination for acid acidifying integrated pipe column that layering examination described in claim 1 is used for
Instrument, is characterized in that, including crowded sour valve seat, for sour valve seat, spring base and switching mechanism, squeeze acid valve seat, for sour valve seat and spring
Seat is threadedly coupled successively from top to bottom, and switching mechanism is arranged on for the inside of sour valve seat；Lower case for sour valve seat is provided with
Track, the connecting rod of switching mechanism is inserted in track and can slide in track in the presence of fluid pressure in integrated pipe column
It is dynamic.
4. layering examination as claimed in claim 3 is squeezed with for acid acidifying integrated tool, be it is characterized in that, the switching mechanism includes
Piston and spring, spring is arranged between piston and spring base, and connecting rod traverses and is welded on the bottom of piston, exposes the portion of piston
In dividing insertion track.
5. layering examination as claimed in claim 4 is squeezed with for acid acidifying integrated tool, be it is characterized in that, described in spring and spring
Bearing is also equipped between seat, the bearing is arranged in the inner chamber of spring base and with spring base and is threadedly coupled.
6. layering examination as claimed in claim 4 is squeezed with for acid acidifying integrated tool, be it is characterized in that, the piston is tubular
Body, its top end cover is provided with flowing hole, and single current valve seat and single current valve ball are provided with the tubular body of top, and single current valve ball is arranged on top
Between end cap and single current valve seat, on the tubular body wall below single current valve seat apopore is provided with.
7. layering examination as claimed in claim 6 is squeezed with for acid acidifying integrated tool, be it is characterized in that, the apopore at least sets
There is one, on the outer wall of the piston of the upper and lower both sides of apopore sealing ring is provided with.
8. layering examination as claimed in claim 6 is squeezed with for acid acidifying integrated tool, be it is characterized in that, described for the upper of sour valve seat
Portion's tube wall be provided with excessively stream chamber, the excessively stream chamber internal diameter more than piston external diameter, after spring is upspring completely, apopore was in
In stream chamber.
9. layering examination as claimed in claim 8 is squeezed with for acid acidifying integrated tool, be it is characterized in that, the track is Y type rails
Road, is made up of opening track c, closing track a and commutation track b, opens track c, closing track a and commutation track b is mutually passed through
It is logical, open track c and roll to the right from the top that the top of commutation track b inclined to the left, closed track a self-commutation track b
Tiltedly, open track c and be longer than closing track a, commutate track b and the bottom insertion for sour valve seat；Track is provided with two, sets in opposite directions
Put in the both sides for sour valve seat bottom tube wall.
10. layering examination as claimed in claim 4 is squeezed with for acid acidifying integrated tool, be it is characterized in that, the crowded sour valve seat
It is taper to pushing up inner chamber that two ends inner chamber is provided with screw thread, middle part inner chamber, the taper to pushing up inner chamber in, superposed conical internal cavity with
Squeeze acid valve ball to coordinate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621190310.5U CN206158605U (en) | 2016-10-28 | 2016-10-28 | Layering examination is crowded and is replaced sour acidizing integration tubular column and integration instrument thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621190310.5U CN206158605U (en) | 2016-10-28 | 2016-10-28 | Layering examination is crowded and is replaced sour acidizing integration tubular column and integration instrument thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206158605U true CN206158605U (en) | 2017-05-10 |
Family
ID=58656774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621190310.5U Expired - Fee Related CN206158605U (en) | 2016-10-28 | 2016-10-28 | Layering examination is crowded and is replaced sour acidizing integration tubular column and integration instrument thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206158605U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110500079A (en) * | 2019-09-19 | 2019-11-26 | 中国石油化工股份有限公司 | More formation acidizing water injection strings |
-
2016
- 2016-10-28 CN CN201621190310.5U patent/CN206158605U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110500079A (en) * | 2019-09-19 | 2019-11-26 | 中国石油化工股份有限公司 | More formation acidizing water injection strings |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170510 Termination date: 20181028 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |