CN207728351U - Offset type sand-settling-preventing and anti-spitting-preventing tool and system - Google Patents
Offset type sand-settling-preventing and anti-spitting-preventing tool and system Download PDFInfo
- Publication number
- CN207728351U CN207728351U CN201820064196.4U CN201820064196U CN207728351U CN 207728351 U CN207728351 U CN 207728351U CN 201820064196 U CN201820064196 U CN 201820064196U CN 207728351 U CN207728351 U CN 207728351U
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- Prior art keywords
- flow
- sand
- well
- offset
- baffle
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- 239000004576 sand Substances 0.000 claims abstract description 75
- 239000007788 liquid Substances 0.000 claims abstract description 26
- 238000011010 flushing procedure Methods 0.000 claims abstract description 20
- 239000012535 impurity Substances 0.000 claims abstract description 12
- 238000002347 injection Methods 0.000 claims abstract description 11
- 239000007924 injection Substances 0.000 claims abstract description 11
- 239000012530 fluid Substances 0.000 claims description 9
- 239000006210 lotion Substances 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 4
- 206010067171 Regurgitation Diseases 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 14
- 230000000903 blocking effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 1
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- Filtration Of Liquid (AREA)
Abstract
The utility model discloses an offset-type prevents sand setting and prevents anti-instrument of telling relates to the oil field development field, include: a cylinder (02); either side or two sides of the cylinder (02) are respectively provided with a first flow passage, and a second flow passage is arranged between the outer side of the first flow passage and the inner side of the cylinder (02) or between 2 first flow passages; the second flow passage is used for providing a falling channel for sand in the well injection liquid; the second flow passage or the first flow passage is sealed when the well is lowered, and the first flow passage is used for providing a passage for well-flushing liquid. And an offset sand-deposition-prevention and anti-regurgitation-prevention system. The problems of blockage and difficult well flushing in the test caused by that impurities at the bottom of the well enter the oil pipe from the baffle ball and sand particles reversely spit from the stratum are deposited above the baffle ball for a long time can be solved.
Description
Technical field
The utility model is related to oil field development field, the anti-sand setting counter-flow resisting tool of specifically a kind of offset and system,
The downhole tool and system of especially a kind of stratified injection water technology.
Background technology
Current separate-layer string using packer, eccentric injection mandrel, block, the structure of screen casing, block positioned at tubing string
To between artificial bottom of a well, liquid can enter pit shaft by blocking from the bottom to top for bottom end, perforation bottom circle.Injection well is in job execution
When, the impurity in shaft bottom can enter oil pipe from blocking, and be deposited in the inclined hole of eccentric flow regulator or extension is attached to tube inner wall, test is caused to be met
Resistance；Water injection well injects for a long time, and the anti-sand grains long time sedimentation spat in stratum is deposited in top of blocking, and causes well-flushing difficult.These
Situation can increase operations number and operating cost.
Invention content
In view of this, the utility model provides a kind of anti-sand setting counter-flow resisting tool of offset, to solve the impurity because of shaft bottom
It is hampered and well-flushing difficulty in test caused by top of blocking with the anti-sand grains long time sedimentation spat in stratum after blocking into oil pipe
The problem of.
In a first aspect, the utility model provides a kind of anti-sand setting counter-flow resisting tool of offset, including：
Cylinder；
The either side of the cylinder or both sides are respectively provided with first flow, the outside of the first flow and the cylinder
Inside or 2 first flows between have second flow channel；
The second flow channel, for providing dropping channel for the sand in note well liquid；
The second flow channel or first flow seal when going into the well, and first flow is used to provide channel for flushing fluid.
Preferably, the inside of the first flow has the sand control mechanism that goes into the well；
The sand control mechanism that goes into the well prevents sand or impurity from entering the cylinder when for going into the well.
Preferably, the first flow, including：Internal lining pipe；
One end of the internal lining pipe is that backwash liquor goes out liquid screen casing, and the other end of the internal lining pipe is backwash liquor feed liquor screen casing；
The backwash liquor, which goes out between liquid screen casing and the backwash liquor feed liquor screen casing, has the sand control mechanism that goes into the well.
Preferably, the sand control mechanism that goes into the well, including：Baffle；
The baffle has baffle through-hole；The both sides of the baffle through-hole are respectively baffle through-hole blockage mechanism and described anti-
Washing lotion goes out liquid screen casing；
The baffle through-hole blockage mechanism prevents sand or impurity from entering the cylinder, and will pass through institute when for going into the well
The flushing fluid for stating baffle through-hole blockage mechanism goes out liquid screen casing into the backwash liquor.
Preferably, the baffle through-hole blockage mechanism, including：Ball；
One end of the ball is the baffle, and it is the backwash liquor feed liquor screen casing that the other end of the ball, which is ball seat,；
The ball seat is slided or is fixedly connected with the internal lining pipe.
Preferably, it is seal groove that the inside of the ball seat, which has groove, the groove,.
Preferably, the seal groove is O shape seal grooves, and the seal groove is in the contact position of the ball and the ball seat；
The seal groove is sealed using O-ring.
Preferably, the outside of the backwash liquor feed liquor screen casing has sand filter layer.
Preferably,
One end of the cylinder has top connection；
The other end of the cylinder has lower contact.
Second aspect, the utility model provide a kind of anti-sand setting counter-flow resisting system of offset, including：
Such as a kind of above-mentioned anti-sand setting counter-flow resisting tool of offset；And
Casing；
The inside of described sleeve pipe has oil pipe, has annular space, the annular empty between described sleeve pipe and the oil pipe
Between each oil reservoir between have packer；
Oil pipe between each oil reservoir is connected by injection well downhole flow regulator, and the end of the oil pipe and a kind of offset are anti-
The upper end of sand setting counter-flow resisting tool connects；A kind of lower end of the anti-sand setting counter-flow resisting tool of offset has tail pipe.
The utility model at least has the advantages that：
A kind of anti-sand setting counter-flow resisting tool of offset of the utility model offer and system, the either side of cylinder or both sides point
There is not have second flow channel between first flow, the outside of first flow and the inside of cylinder or 2 first flows；Second
Runner provides dropping channel for the sand in note well liquid；Second flow channel or first flow seal when going into the well, sundries when preventing from going into the well
Enter inner barrel by second flow channel or first flow, first flow also provides channel for flushing fluid.When the water filling into well
（That is, note well）When, the sand for noting well liquid is fallen by second flow channel, and sand will not be deposited in cylinder, that is to say, that will not be deposited on
The upside of first flow facilitates the well-flushing of first flow to operate.
Description of the drawings
By the description below with reference to attached drawing to the utility model embodiment, the above-mentioned and other mesh of the utility model
, feature and advantage it is apparent, in the accompanying drawings：
Fig. 1 is a kind of anti-sand setting counter-flow resisting tool construction schematic diagram of offset of the utility model embodiment；
Fig. 2 is a kind of anti-sand setting counter-flow resisting system structure diagram of offset of the utility model embodiment.
Specific implementation mode
The utility model is described below based on embodiment, but it is worth noting that, the utility model is simultaneously unlimited
In these embodiments.It is detailed to describe some specific detail sections below in the datail description of the utility model.So
And for the part of no detailed description, those skilled in the art can also understand the utility model completely.
In addition, it should be understood by one skilled in the art that the attached drawing that is provided is simply to illustrate that the utility model
Objects, features and advantages, attached drawing are not to be actually drawn to scale.
Meanwhile unless the context clearly requires otherwise, "include", "comprise" etc. otherwise throughout the specification and claims
Similar word should be construed as the meaning for including rather than exclusive or exhaustive meaning；That is, being " including but not limited to "
Meaning.
Fig. 1 is a kind of anti-sand setting counter-flow resisting tool construction schematic diagram of offset of the utility model embodiment.Such as Fig. 1 institutes
Show, a kind of anti-sand setting counter-flow resisting tool of offset, including：Cylinder 02；The either side of cylinder 02 or both sides are respectively provided with first
Runner has second flow channel between the outside of first flow and the inside of cylinder 02 or 2 first flows；Second flow channel is used
In for note well liquid in sand dropping channel is provided；Second flow channel or first flow seal when going into the well, and first flow is used to wash
Well liquid provides channel.Specifically, second flow channel seals when going into the well, when well-flushing, first flow is opened, and is provided for flushing fluid
Channel；When well-flushing, flushing fluid flows into second flow channel from first flow.
Further, in Fig. 1, the inside of first flow has the sand control mechanism that goes into the well；Go into the well sand control mechanism, for going into the well
When prevent sand or impurity from entering cylinder 02, specifically, preventing the first flow and second flow channel into cylinder 02.
Further, in Fig. 1, first flow, including：Internal lining pipe 04；One end of internal lining pipe 04 is that backwash liquor goes out liquid sieve
The other end of pipe 042, internal lining pipe 04 is backwash liquor feed liquor screen casing 041；Backwash liquor goes out liquid screen casing 042 and backwash liquor feed liquor screen casing
There is the sand control mechanism that goes into the well between 041.
Further, in Fig. 1, go into the well sand control mechanism, including：Baffle 03；Baffle 03 has baffle through-hole；Baffle through-hole
Both sides be respectively that baffle through-hole blockage mechanism and backwash liquor go out liquid screen casing 042；Baffle through-hole blockage mechanism, baffle through-hole block
Mechanism will be entered for preventing sand or impurity from entering cylinder when going into the well by the flushing fluid of the baffle through-hole blockage mechanism
Backwash liquor goes out liquid screen casing 042.
Further, in Fig. 1, baffle through-hole blockage mechanism, including：Ball 05；One end of ball 05 is baffle 03, ball 05
The other end is that ball seat 06 is backwash liquor feed liquor screen casing 041；Ball seat 06 is slided or is fixedly connected with internal lining pipe 04.Specifically,
Baffle through-hole blockage mechanism
Further, in Fig. 1, the inside of ball seat 06 has groove, and groove is seal groove.
Further, in Fig. 1, seal groove is O shape seal grooves, and seal groove is in the contact position of ball 05 and ball seat 06；Sealing
Slot is sealed using O-ring 08.
Further, in Fig. 1, the outside of backwash liquor feed liquor screen casing 041 has sand filter layer.
Further, in Fig. 1, one end of cylinder 02 has top connection 01；The other end of cylinder 02 has lower contact 07.
Fig. 1 is tied, the assembling process and operation principle to a kind of anti-sand setting counter-flow resisting tool of offset of the utility model carry out
Brief description：The either side of cylinder 02 or both sides are respectively provided with internal lining pipe 04, and internal lining pipe 04 is first flow, internal lining pipe 04 with
Second flow channel is formed between 02 inside of cylinder or 2 internal lining pipes 04；There is baffle 03 and ball seat 06, baffle 03 in internal lining pipe 04
There is ball 05 between ball seat 06, can have sliding sleeve or ball seat 06 to be fixed in internal lining pipe 04 between baffle 03 and ball seat 06,
When going into the well, baffle 03 and ball seat 06 are fixed with fixing pin 09, specifically, being fixed on ball 05 using fixing pin 09
The baffle through hole of baffle 03, can be prevented when going into the well shaft bottom impurity from the gap of ball seat 06 is counter spits into cylinder 02, pollute.
Pin is cut when water filling, ball seat 06 or ball 05 fall, the utility model normal work.Add above and below ball 05 simultaneously
Screen casing（That is, backwash liquor goes out liquid screen casing 042 and backwash liquor feed liquor screen casing 041）, to prevent shaft bottom impurity into cylinder 02, ensure ball 05
Flexibility.Specifically, offset, which is the either side of cylinder 02 or both sides, is respectively provided with internal lining pipe 04, internal lining pipe 04 is the
One runner forms second flow channel, when the water filling into well between internal lining pipe 04 and 02 inside of cylinder or 2 internal lining pipes 04（That is, note
Well）When, the sand for noting well liquid is fallen by first flow, and sand will not be deposited in cylinder 02, that is to say, that will not be deposited on second
The upside of runner（That is, anti-sand setting）, the well-flushing of second flow channel is facilitated to operate；It seals, prevents when counter-flow resisting is gone into the well for second flow channel
Sundries enters inner barrel by second flow channel when going into the well.That is, when going into the well, fixing pin 09 is fixed on ball seat 06 and leans on
The side of nearly baffle 03, baffle 03 have baffle through-hole, and using 0 ball 5 on ball seat 06, down-hole pressure cuts fixing pin 09
It is disconnected, it is fallen under ball seat 06, i.e.,：Ball 05 and baffle 03 are fixed using fixing pin 09, utilize injection well mains water pressure testing, pressure
10MPa or so builds the pressure 5 minutes, no seepage and no leakage.Fixing pin 09 is cut when water filling, ball seat 06 falls, the normal work of the utility model
Make（It can be operated under the pattern of well-flushing and backwash）.
Fig. 2 is a kind of anti-sand setting counter-flow resisting system structure diagram of offset of the utility model embodiment.Such as Fig. 2 institutes
Show, and is illustrated in conjunction with Fig. 1, a kind of anti-sand setting counter-flow resisting tool system of offset, including：As a kind of above-mentioned offset is anti-settling
Sand counter-flow resisting tool；And casing b；The inside of casing b has oil pipe c, has annular space, annular between casing b and oil pipe c
There is packer d between each oil reservoir a in space；Oil pipe c between each oil reservoir a is connected by injection well downhole flow regulator e, the end of oil pipe c
End is connect with a kind of upper end of the anti-sand setting counter-flow resisting tool of offset；A kind of lower end of the anti-sand setting counter-flow resisting tool of offset has
Tail pipe 9.
It is illustrated in conjunction with Fig. 1, and in conjunction with Fig. 1, to a kind of anti-sand setting counter-flow resisting of offset of the utility model embodiment
System is briefly described：There is oil pipe a in casing b, form oil jacket annular space between casing b and oil pipe a, have envelope in oil jacket annular space
It is located between 2 oil reservoirs every device d, packer d；Oil pipe c is connected with injection well downhole flow regulator e, has unidirectional well-flushing passage, oil on packer d
The end of pipe c is connected by a kind of top connection 01 of the anti-sand setting counter-flow resisting tool of offset of the utility model, the utility model one
The lower contact 07 of the kind anti-sand setting counter-flow resisting tool of offset is connected to tail pipe g, and tail pipe can be plug.
In fig. 2, and in conjunction with Fig. 1 it illustrates, the workflow of water filling is as follows：Using injection well downhole flow regulator e, by water（That is, note well
Liquid）It being injected from oil pipe c, oil pipe c injects water into oil reservoir a, and the of a kind of anti-sand setting counter-flow resisting tool of offset of the utility model
The impurity contained in water is entered tail pipe g by two channels by lower contact 07.
In fig. 2, and in conjunction with Fig. 1 it illustrates, the workflow of well-flushing is as follows：Water（That is, flushing fluid）It is from oil jacket ring
Sky is entered by the utility model in oil pipe c, i.e.,：The first of the anti-sand setting counter-flow resisting tool of a kind of offset of the utility model is logical
Road enters oil pipe c, that is to say, that：Downside screen casing of the water from internal lining pipe 04（I.e.：Backwash liquor feed liquor screen casing 041）Into internal lining pipe 04
In, the ball seat 06 in internal lining pipe 04 is also hollow structure, and water pushes ball 05 to move by ball seat 06, and ball seat 06 and ball 05 are detached from,
Ball 05 is moved to the side of baffle 03.Importantly, due to a kind of anti-sand setting counter-flow resisting tool of offset of the utility model, instead
Washing lotion goes out liquid screen casing 042 there is no the sand of accumulation, and backwash process is easy to implement, and the sand for being not in accumulation excessively causes backwash tired
It is difficult.
Embodiment described above is only to express the embodiment of the utility model, the description thereof is more specific and detailed, but simultaneously
Cannot the limitation to the utility model patent range therefore be interpreted as.It should be pointed out that the ordinary skill people of this field
For member, without departing from the concept of the premise utility, several deformations, same replacement can also be made, improved etc., these
Belong to the scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (10)
1. a kind of anti-sand setting counter-flow resisting tool of offset, which is characterized in that including：
Cylinder（02）；
The cylinder（02）Either side or both sides be respectively provided with first flow, the outside of the first flow and the cylinder
（02）Inside or 2 first flows between have second flow channel；
The second flow channel, for providing dropping channel for the sand in note well liquid；
The second flow channel or the first flow seal when going into the well, and first flow is used to provide channel for flushing fluid.
2. the anti-sand setting counter-flow resisting tool of a kind of offset according to claim 1, it is characterised in that：
The inside of the first flow has the sand control mechanism that goes into the well；
The sand control mechanism that goes into the well prevents sand or impurity from entering the cylinder when for going into the well（02）.
3. the anti-sand setting counter-flow resisting tool of a kind of offset according to claim 2, it is characterised in that：
The first flow, including：Internal lining pipe（04）；
The internal lining pipe（04）One end be backwash liquor go out liquid screen casing（042）, the internal lining pipe（04）The other end be backwash liquor
Feed liquor screen casing（041）；
The backwash liquor goes out liquid screen casing（042）With the backwash liquor feed liquor screen casing（041）Between there is the sand control mechanism that goes into the well.
4. the anti-sand setting counter-flow resisting tool of a kind of offset according to claim 3, it is characterised in that：
The sand control mechanism that goes into the well, including：Baffle（03）；
The baffle（03）With baffle through-hole；The both sides of the baffle through-hole are respectively baffle through-hole blockage mechanism and described anti-
Washing lotion goes out liquid screen casing（042）；
The baffle through-hole blockage mechanism prevents sand or impurity from entering the cylinder when for going into the well（02）, and institute will be passed through
The flushing fluid for stating baffle through-hole blockage mechanism goes out liquid screen casing into the backwash liquor（042）.
5. the anti-sand setting counter-flow resisting tool of a kind of offset according to claim 4, it is characterised in that：
The baffle through-hole blockage mechanism, including：Ball（05）；
The ball（05）One end be the baffle（03）, the ball（05）The other end be ball seat（06）For the backwash liquor into
Liquid screen casing（041）；
The ball seat（06）, with the internal lining pipe（04）It slides or is fixedly connected.
6. the anti-sand setting counter-flow resisting tool of a kind of offset according to claim 5, it is characterised in that：
The ball seat（06）Inside have groove, the groove be seal groove.
7. the anti-sand setting counter-flow resisting tool of a kind of offset according to claim 6, it is characterised in that：
The seal groove is O shape seal grooves, and the seal groove is in the ball（05）With the ball seat（06）Contact position；
The seal groove is sealed using O-ring.
8. the anti-sand setting counter-flow resisting tool of a kind of offset according to claim 3, it is characterised in that：
The backwash liquor feed liquor screen casing（041）Outside have sand filter layer.
9. according to a kind of any one of claim 1~8 anti-sand setting counter-flow resisting tool of offset, it is characterised in that：
The cylinder（02）One end have top connection（01）；
The cylinder（02）The other end have lower contact（07）.
10. a kind of anti-sand setting counter-flow resisting tool system of offset, which is characterized in that including：
A kind of anti-sand setting counter-flow resisting tool of offset as described in any one of claim 1~9；And
Casing（b）；
Described sleeve pipe（b）Inside have oil pipe（c）, described sleeve pipe（b）With the oil pipe（c）Between have annular space, institute
State each oil reservoir of annular space（a）Between have packer（d）；
Each oil reservoir（a）Between oil pipe（c）Pass through injection well downhole flow regulator（e）Connection, the oil pipe（c）End and described one kind
The upper end of the anti-sand setting counter-flow resisting tool of offset connects；A kind of lower end of the anti-sand setting counter-flow resisting tool of offset has tail pipe
（9）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820064196.4U CN207728351U (en) | 2018-01-16 | 2018-01-16 | Offset type sand-settling-preventing and anti-spitting-preventing tool and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820064196.4U CN207728351U (en) | 2018-01-16 | 2018-01-16 | Offset type sand-settling-preventing and anti-spitting-preventing tool and system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207728351U true CN207728351U (en) | 2018-08-14 |
Family
ID=63082680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820064196.4U Active CN207728351U (en) | 2018-01-16 | 2018-01-16 | Offset type sand-settling-preventing and anti-spitting-preventing tool and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207728351U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111894498A (en) * | 2020-09-04 | 2020-11-06 | 北京化工大学 | A sand collector for well workover reverse circulation sand cleaning |
-
2018
- 2018-01-16 CN CN201820064196.4U patent/CN207728351U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111894498A (en) * | 2020-09-04 | 2020-11-06 | 北京化工大学 | A sand collector for well workover reverse circulation sand cleaning |
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