CN206144541U - Resistant erosion screen pipe tubular column of horizontal well high strength - Google Patents
Resistant erosion screen pipe tubular column of horizontal well high strength Download PDFInfo
- Publication number
- CN206144541U CN206144541U CN201621004550.1U CN201621004550U CN206144541U CN 206144541 U CN206144541 U CN 206144541U CN 201621004550 U CN201621004550 U CN 201621004550U CN 206144541 U CN206144541 U CN 206144541U
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- China
- Prior art keywords
- sand
- filter
- central canal
- screen pipe
- horizontal well
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Abstract
The utility model relates to an oil and gas field development technical field, concretely relates to resistant erosion screen pipe tubular column of horizontal well high strength. A resistant erosion screen pipe tubular column of horizontal well high strength, includes the center tube, the center tube outside is equipped with self -cleaning filter equipment of filter sand device, wire winding and the oversheath pipe that the lateral length equals in proper order, the filter sand device includes that the interconnected's that outwards sets gradually from the center tube laser cuts slot screen pipe, a filtering medium, interior support guard net and the 2nd filtering medium, center tube, filter sand device, the self -cleaning filter equipment of wire winding and oversheath guan shangjun are equipped with the discharge orifice of crossing that has a perfect understanding, the utility model discloses a discharge orifice of crossing on oversheath pipe, the self -cleaning filter equipment of wire winding, filter sand device and the center tube effectively stops fracturing sand and stratum sand, and fracturing sand and stratum sand are through forming effective multistage fender sand protective screen after stopping around near -wellbore zone and screen pipe to reinforcing horizontal well sand control effect.
Description
Technical field
This utility model is related to oil-gas field development technical field, and in particular to a kind of horizontal well high intensity erosion resistance screen casing pipe
Post.
Background technology
The characteristics of low-permeability oil deposit has low abundance, low pressure, low yield " three is low ", distributed areas are wide, and proportion is big.It is hypotonic
Saturating oil reservoir poor properties, it is necessary to fracturing production, fracturing sand return row not thoroughly, and sand is told on stratum, causes development difficulty big.It is early
The construction of filter sand control and gravel filling sand prevention construction are hung using horizontal well more than phase horizontal well, with increasing for exploiting field domain of showwing loving care for, sand screen
The situation that pipe is damaged happens occasionally.
Traditional sand control screen is made up of central canal and filter layer.This screen casing has the disadvantage that：（1）Filter layer resistance to compression
Low intensity.Due to the inside and outside pressure reduction of filter layer it is big, so easily pierced, it is easier to set occur and damage and deform.（2）Due to
Structure is single layer filter, easily blocks, causes with short production cycle.（3）Erosion resistance, corrosion-resistant, high temperature resistant and erosion resistibility are low, lead
Cause and use short life.Especially screen casing is frequently subjected to the erosion of formation fluid or outside fluid in downhole environment, common
Easily there is " sleave " phenomenon in screen casing, causes total completion time and sand controlling result to reduce or fail, and serious also results in heavy repair task.
Along with bottom hole temperature (BHT) is of a relatively high, the sand net of common net formula sand-baffling device is caused to be easily oxidised corrosion, in certain pressure reduction
Under be susceptible to destruction and cause sand controlling result to significantly reduce.
The content of the invention
This utility model aims to the problems referred to above, proposes a kind of horizontal well high intensity erosion resistance screen casing tubing string.
The technical solution of the utility model is：
A kind of horizontal well high intensity erosion resistance screen casing tubing string, including central canal, are sequentially provided with lateral length on the outside of central canal
Equal filtering sand apparatus, the self-cleaning defecator of wrapping wire and outer sheath tube；The filtering sand apparatus are included from central canal outwards successively
The laser slotted screen pipe for interconnecting, the first filter medium, inner support catch net and the second filter medium for arranging；In described
The flowing hole of insertion is equipped with the self-cleaning defecator of heart pipe, filtering sand apparatus, wrapping wire and outer sheath tube；Described central canal one end sets
There is connection screw thread, the other end installs single flow centralizer and casing coupling；The self-cleaning defecator of the filtering sand apparatus, wrapping wire and
Its equal one end of outer sheath tube is fixed on central canal by lower pressing cap by upper pressing cap, the other end；Described upper pressing cap front end according to
Secondary to be provided with front baffle ring, front baffle ring is fixed on central canal by front weld cap；The end of described lower pressing cap is additionally provided with telescopic guarantor
Protection unit；Described single flow centralizer is barrel shape formula structure, is evenly equipped with multi-head spiral groove on which is cylindrical；Wherein, outer shield
Sleeve pipe is the groove bridge-type punched hole screen pipe that both sides punching has filter seam.
Described outer sheath tube is the arch (bridge) type punched hole screen pipe that both sides punching has filter seam.
It is of the present utility model to have technical effect that：
This utility model passes through laser slotted screen pipe, the first filter medium, inner support catch net and the second filter medium
As filtering sand apparatus so that sand control effective percentage is up to 99%, workover rate is made to reduce by 80% so that the intensity of well sand block barrier, complete
Whole property and stability are improved, and to realize that sand control, many wheel steam injection productions provide condition, stop well length is administered, fully
Performance pipe seam consubstantiality intensity is high, sand controlling result is good, simple structure advantage, fundamentally avoids Wire wound tube " sleave " problem,
Its shock resistance and corrosion resistance are stronger than net formula sand-baffling device, while the service life of screen casing can be extended；By filtering sand apparatus, around
The self-cleaning defecator of silk and outer sheath tube can effectively stop fracturing sand and reservoir sand, the fracturing sand and reservoir sand energy after stopping
It is enough that effectively multistage sand block barrier is formed around near wellbore zone and screen casing, so as to enhancing level well sand controlling result.
Description of the drawings
Fig. 1 is a kind of horizontal well high intensity erosion resistance screen casing tubular column structure schematic diagram of this utility model.
Fig. 2 is a kind of horizontal well high intensity erosion resistance screen casing tubing string filtering sand apparatus structural representation of this utility model.
Wherein, 1- central canals, weld cap before 2-, baffle ring before 3-, 4- upper pressing caps, 5- outer sheath tubes, 6- wrapping wires are self-cleaning to filter dress
Put, 7- filtering sand apparatus, 8- lower pressing caps, the telescopic protection devices of 9-, 10- single flow centralizers, 11- casing couplings, 12- excessively streams
Hole, the second filter mediums of 42-, 43- inner support catch nets, the first filter mediums of 44-, 45- laser slotted screen pipes.
Specific embodiment
Embodiment 1
A kind of horizontal well high intensity erosion resistance screen casing tubing string, including central canal 1, are sequentially provided with horizontal length on the outside of central canal 1
The equal self-cleaning defecator 6 of filtering sand apparatus 7, wrapping wire of degree and outer sheath tube 5；The filtering sand apparatus 7 include from central canal to
The laser slotted screen pipe 45 for interconnecting, the first filter medium 44, inner support catch net 43 and the second mistake for setting gradually outward
Filter medium 42；The excessively stream of insertion is equipped with the self-cleaning defecator 6 of the central canal 1, filtering sand apparatus 7, wrapping wire and outer sheath tube 5
Hole 12；1 one end of the central canal is provided with connection screw thread, and the other end installs single flow centralizer 10 and casing coupling 11；It is described
The self-cleaning defecator 6 of filtering sand apparatus 7, wrapping wire and its equal one end of outer sheath tube 5 are solid by lower pressing cap 8 by the upper pressing cap 4, other end
It is scheduled on central canal 1；Described 4 front end of upper pressing cap is sequentially provided with front baffle ring 3, and front baffle ring 3 is fixed on central canal by front weld cap 2
On 1；The end of described lower pressing cap 8 is additionally provided with telescopic protection device 9；Described single flow centralizer 10 is barrel shape formula
Structure, is evenly equipped with multi-head spiral groove on which is cylindrical；Wherein, outer sheath tube 5 is the groove bridge-type punched hole screen pipe that both sides punching has filter seam.
Embodiment 2
On the basis of embodiment 1, described outer sheath tube 5 is replaced with both sides punching the arch bridge of filter seam to the present embodiment
Formula punched hole screen pipe.
This utility model adopts central canal 1, the self-cleaning defecator 6 of filtering sand apparatus 7, wrapping wire and outer sheath tube 5, will be original
Net formula sand-baffling device is changed to laser slotted screen pipe 45, and is provided with intensity wrapping wire protective layer, sand control is had by filtering sand apparatus 7
Efficiency makes workover rate reduce by 80% so that the intensity of well sand block barrier, integrity and stability are improved, and are up to 99%
Realize that sand control, a steam injection of taking turns are produced there is provided condition more, stop well length is administered, give full play to pipe seam consubstantiality intensity height, sand control
Effect is good, the advantage of simple structure, fundamentally avoids Wire wound tube " sleave " problem, and its shock resistance and corrosion resistance are than net formula
Sand-baffling device is strong, while the service life of screen casing can be extended；By the self-cleaning defecator 6 of filtering sand apparatus 7, wrapping wire and outer shield
Sleeve pipe 5 can effectively stop that fracturing sand and reservoir sand, fracturing sand and reservoir sand can be near wellbore zone and screen casing weeks after stopping
Enclose to form effective multistage sand block barrier, so as to enhancing level well sand controlling result.Wherein, 1 material of central canal is high temperature high voltage resistant
High-quality TP110 sleeve pipe material.High intensity erosion resistance demand is met, its flowing hole is interspersed, and meets excessively stream needs, effectively
Avoid direct erosion of the formation oil air-flow to filtering sand apparatus.
Claims (2)
1. a kind of horizontal well high intensity erosion resistance screen casing tubing string, including central canal（1）, central canal（1）Outside is sequentially provided with laterally
The filtering sand apparatus of equal length（7）, the self-cleaning defecator of wrapping wire（6）And outer sheath tube（5）；It is characterized in that：The filter sand
Device（7）Including the laser slotted screen pipe for interconnecting outwards set gradually from central canal（45）, the first filter medium（44）、
Inner support catch net（43）And second filter medium（42）；The central canal（1）, filtering sand apparatus（7）, wrapping wire it is self-cleaning filter dress
Put（6）With the flowing hole that insertion is equipped with outer sheath tube (5)（12）；The central canal（1）One end is provided with connection screw thread, another
End is installed by single flow centralizer（10）And casing coupling（11）；The filtering sand apparatus（7）, the self-cleaning defecator of wrapping wire（6）With
Outer sheath tube（5）Its equal one end passes through upper pressing cap（4）, the other end pass through lower pressing cap（8）It is fixed on central canal（1）On；Described
Upper pressing cap（4）Front end is sequentially provided with front baffle ring（3）, front baffle ring（3）By front weld cap（2）It is fixed on central canal（1）On；Described
Lower pressing cap（8）End be additionally provided with telescopic protection device (9)；Described single flow centralizer（10）Tie for barrel shape formula
Structure, is evenly equipped with multi-head spiral groove on which is cylindrical；Wherein, outer sheath tube（5）There is the groove bridge-type punched hole screen pipe of filter seam for both sides punching.
2. horizontal well high intensity erosion resistance screen casing tubing string according to claim 1, it is characterised in that：Described outer sheath tube
（5）There is the arch (bridge) type punched hole screen pipe of filter seam for both sides punching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621004550.1U CN206144541U (en) | 2016-08-31 | 2016-08-31 | Resistant erosion screen pipe tubular column of horizontal well high strength |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621004550.1U CN206144541U (en) | 2016-08-31 | 2016-08-31 | Resistant erosion screen pipe tubular column of horizontal well high strength |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206144541U true CN206144541U (en) | 2017-05-03 |
Family
ID=58617901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621004550.1U Expired - Fee Related CN206144541U (en) | 2016-08-31 | 2016-08-31 | Resistant erosion screen pipe tubular column of horizontal well high strength |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206144541U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108982342A (en) * | 2018-07-20 | 2018-12-11 | 中海石油(中国)有限公司湛江分公司 | A kind of high temperature and pressure Horizontal Wells For Gas Reservoirs sand control screen anti-erosion property evaluating apparatus and evaluation method and application |
-
2016
- 2016-08-31 CN CN201621004550.1U patent/CN206144541U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108982342A (en) * | 2018-07-20 | 2018-12-11 | 中海石油(中国)有限公司湛江分公司 | A kind of high temperature and pressure Horizontal Wells For Gas Reservoirs sand control screen anti-erosion property evaluating apparatus and evaluation method and application |
| CN108982342B (en) * | 2018-07-20 | 2021-11-09 | 中海石油(中国)有限公司湛江分公司 | Device and method for evaluating erosion resistance of sand control screen pipe of high-temperature high-pressure gas reservoir horizontal well and application of device and method |
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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: 20170503 Termination date: 20190831 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |