CN208057100U - Anti- mud drum screen casing - Google Patents
Anti- mud drum screen casing Download PDFInfo
- Publication number
- CN208057100U CN208057100U CN201820156314.4U CN201820156314U CN208057100U CN 208057100 U CN208057100 U CN 208057100U CN 201820156314 U CN201820156314 U CN 201820156314U CN 208057100 U CN208057100 U CN 208057100U
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- Prior art keywords
- screen
- screen casing
- filter screen
- soluble material
- filter
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Abstract
The utility model discloses anti-mud drum screen casing, including screen casing ontology, the middle part of the screen casing ontology is that surface is evenly distributed with round-meshed hole pipeline section, the periphery of the hole pipeline section is arranged with the rotatable filter screen of tubulose, the periphery of the filter screen is equipped with the soluble material set of soluble material formation, and the filter screen is covered on the outside.The anti-mud drum screen construction of the utility model is simple, easy for installation, and filter screen can circumferentially rotate, and reduces screen insertion process frictional resistance；Soluble properties are delayed using soluble material, mud stone section screen casing filter sand hole was reduced and risk is blocked by mud stone, solves the problems, such as that conventional screen crosses mud stone section filter sand hole and is blocked, extends screen casing service life, overhaul number is reduced, to reduce operating cost.
Description
Technical field
The utility model is related to petroleum gas completion technique fields, and in particular to anti-mud drum screen casing.
Background technology
Incomplete statistics, sand proof well accounts for 40% or so of total well number in the world, currently, primary sand control mode has：Machinery
Sand control, chemical sand control and composite sand prevention etc., mechanical sand control is most commonly seen, and screen casing mainly rises big in filtering stratum in mechanical sand control
Diameter sand enters pit shaft, it is therefore an objective to prevent reservoir sand in follow-up oil recovery process from damaging oil well pump, to cause well workover, or even cause
Wellbore such as scraps at the accidents.
Bohai Bay Oil has a large amount of loose sand oil accumulation and heavy crude reservoir, such oil reservoir has shale content height, heterogeneous
Property strong feature, that there are shale contents is high, Container Rock Sanding is serious and the technical barriers such as sand control difficulty is big；Due to Reservoir Heterogeneity
With the variation of stratigraphic dip, open hole well, which often bores, meets big section mud stone, in the well of horizontal bare hole well gravel packing operations there are about
30% causes filling to fail because mud stone collapses, meanwhile, when crossing mud stone section there is also screen casing, filter sand hole is blocked by mud stone, causes oil
Production problem drops in field.
Utility model content
The purpose of this utility model is to be directed to technological deficiency existing in the prior art, and provide anti-mud drum screen casing, it is intended to
It solves the problems, such as that conventional screen crosses mud stone section filter sand hole and is blocked, to extend screen casing service life, overhaul number is reduced, to reduce
Operating cost.
Technical solution is used by realize the purpose of this utility model：
The middle part of anti-mud drum screen casing, including screen casing ontology, the screen casing ontology is that surface is evenly distributed with round-meshed hole pipeline section, institute
The periphery for stating hole pipeline section is arranged with the rotatable filter screen of tubulose, and the periphery of the filter screen is equipped with solvable material
Expect the soluble material set formed, the filter screen is covered on the outside.
The both ends of the screen casing ontology process the pin thread being formed with for being connected with box cupling female thread respectively.
The both ends of the filter screen are equipped with the baffle ring being axially moved for limiting the filter screen, and the baffle ring welding is solid
Determine on the body.
The soluble material set is connected by the periphery of multiple dovetail groove connection structures and filter screen circumferentially,
To limit the tangential rotation of the filter screen.
The anti-mud drum screen construction of the utility model is simple, easy for installation, and filter screen can circumferentially rotate, and reduce under screen casing
Enter process frictional resistance；Soluble properties are delayed using soluble material, mud stone section screen casing filter sand hole was reduced and risk is blocked by mud stone, are solved
Conventional screen of having determined crosses the blocked problem in mud stone section filter sand hole, extends screen casing service life, reduces overhaul number, makees to reduce
Industry cost.
Description of the drawings
Fig. 1 is the half section structure diagram under the main view of anti-mud drum screen casing；
Fig. 2 is the schematic side view of anti-mud drum screen casing；
Fig. 3 is the enlarged diagram of part A in Fig. 1；
Fig. 4 is the enlarged diagram of part B in Fig. 2.
Specific implementation mode
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.It should be appreciated that this place
The specific embodiment of description is only used to explain the utility model, is not used to limit the utility model.
Referring to shown in Fig. 1-4, anti-mud drum screen casing, including screen casing ontology 3, the middle part of the screen casing ontology are evenly equipped with for surface
The periphery of the hole pipeline section of circular hole 31, the hole pipeline section is arranged with the rotatable filter screen 6 of tubulose, the circle of the filter screen
All outsides are equipped with the soluble material set 5 of soluble material formation, and the filter screen is covered on the outside.
The filter screen is mainly used for filtering reservoir sand, and filtering accuracy is generally in 60-350um；The filter screen freely turns
It is dynamic, reduce frictional resistance during lower screen casing；The soluble material jacking is covered in filtering net surface, can prevent mud stone from blocking filtering
Net.Rubbery soluble material may be used to make in the soluble material.
Wherein, the both ends of the screen casing ontology process the pin thread 1 being formed with for being connected with box cupling female thread, screen casing sheet respectively
There is centre bore 2 in the inside of body.
Wherein, the both ends of the filter screen are equipped with the baffle ring 4 being axially moved for limiting the filter screen, the baffle ring
It is welded and fixed on the body.
Wherein, the soluble material set passes through multiple (such as six) uniform dovetail groove connection structure (packet circumferentially
It includes the dovetail shaped groove 61 being formed on filter screen and is formed in the dovetail shaped protrusion coordinated on the soluble material set
51) it is connect with the periphery of filter screen, to limit the tangential rotation of the filter screen.
The anti-mud drum screen construction of the utility model is simple, easy for installation, and filter screen can circumferentially rotate, and reduce under screen casing
Enter process frictional resistance；Soluble properties are delayed using soluble material, mud stone section screen casing filter sand hole was reduced and risk is blocked by mud stone, are solved
Conventional screen of having determined crosses the blocked problem in mud stone section filter sand hole, extends screen casing service life, reduces overhaul number, makees to reduce
Industry cost.
The above is only the preferred embodiment of the utility model, it is noted that for the general of the art
For logical technical staff, without departing from the principle of this utility model, several improvements and modifications can also be made, these change
The scope of protection of the utility model is also should be regarded as into retouching.
Claims (4)
1. anti-mud drum screen casing, which is characterized in that including screen casing ontology, the middle part of the screen casing ontology is that surface is uniformly distributed round-meshed
The periphery of hole pipeline section, the hole pipeline section is arranged with the rotatable filter screen of tubulose, the periphery peace of the filter screen
Equipped with the soluble material set that soluble material is formed, the filter screen is covered on the outside.
2. anti-mud drum screen casing as described in claim 1, which is characterized in that the both ends of the screen casing ontology process respectively formed it is useful
In the pin thread being connected with box cupling female thread.
3. anti-mud drum screen casing as described in claim 1, which is characterized in that the both ends of the filter screen are equipped with described for limiting
The baffle ring that filter screen is axially moved, the baffle ring are welded and fixed on the body.
4. anti-mud drum screen casing as described in claim 1, which is characterized in that the soluble material set passes through multiple swallows circumferentially
Stern notch connection structure and the periphery of filter screen connect, to limit the tangential rotation of the filter screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820156314.4U CN208057100U (en) | 2018-01-30 | 2018-01-30 | Anti- mud drum screen casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820156314.4U CN208057100U (en) | 2018-01-30 | 2018-01-30 | Anti- mud drum screen casing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208057100U true CN208057100U (en) | 2018-11-06 |
Family
ID=63992846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820156314.4U Active CN208057100U (en) | 2018-01-30 | 2018-01-30 | Anti- mud drum screen casing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208057100U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108071374A (en) * | 2018-01-30 | 2018-05-25 | 天津盛鑫华瑞石油技术有限公司 | Anti- mud drum screen casing |
-
2018
- 2018-01-30 CN CN201820156314.4U patent/CN208057100U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108071374A (en) * | 2018-01-30 | 2018-05-25 | 天津盛鑫华瑞石油技术有限公司 | Anti- mud drum screen casing |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |