CN208280949U - A kind of sectionally assembled cavity liner in polygamy side - Google Patents
A kind of sectionally assembled cavity liner in polygamy side Download PDFInfo
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- CN208280949U CN208280949U CN201820576811.XU CN201820576811U CN208280949U CN 208280949 U CN208280949 U CN 208280949U CN 201820576811 U CN201820576811 U CN 201820576811U CN 208280949 U CN208280949 U CN 208280949U
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- cavity liner
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- liner
- sectionally assembled
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Abstract
The utility model discloses a kind of sectionally assembled cavity liner in polygamy side, be mainly used for solving traditional big hole perforator in cased well perforating process because cavity liner global density it is relatively low caused by the relatively low technical problem of perforating depth.Cavity liner is powdered metal liner, the inner surface and the outer surface has upper, middle and lower segment different size but coaxial circular cone (or approximate circular cone) connects and composes, wherein segment components are the higher metal powder of density on cavity liner, in cavity liner, lower segment components be the lower metal powder of density.During cased well perforating job, perforation resilience energy improves perforating depth while forming large aperture on casing and reaches 10%-20% the utility model.Therefore, its popularization and application can effectively improve the recovery ratio of oil gas.
Description
Technical field
The utility model, which belongs to, a kind of can improve big hole perforator in oil and gas development perforating job and wear deep cavity liner
Background technique
In cased well oil reservoir perforation work progress, do not leak to improve oil productivity and effectively control rifle intraclast,
It is required that jet stream forms small eyelet while forming big eyelet on casing on the body of a gun, three-stage pharmacological property cover structure is generallyd use
Big hole perforator fulfil assignment.The upper portion of cavity liner is mainly used for wearing depth, and the cavity liner of the prior art this section is very
Short and cone angle is smaller, is not used to reaming, and on casing formed macropore function then in, the lower section realize, in order to protect
Card casing on form macropore, the cavity liner usually by a kind of density relatively low (7~8g/cm3) composite metal powder compacting and
Wear that deep ability is relatively low at, such upper portion, and then influence entire perforating bullet wears deep performance.
Summary of the invention
The technical issues of the utility model solves is: relatively low in order to improve existing traditional big hole perforator penetration depth
Shortcoming provides one kind during cased well perforating job, can guarantee that casing forms macropore and can increase perforation depth again simultaneously
The ammunition shaped cover of perforation of degree.
The technical solution of the utility model is: a kind of sectionally assembled cavity liner in polygamy side, polygamy side's piecewise combination
Formula cavity liner is cone font, and tip is smooth transition, is symmetrically divided into upper, middle and lower along the conical surface；On it is characterized in that,
Portion is that the composite metal powder that density is 9-14g/cm3 is suppressed, the composite metal powder that middle part and lower part are density 7-8g/cm3
It suppresses.
The further technical solution of the utility model is: the corresponding cone angle in the upper, middle and lower be respectively α, β and
γ, and α ﹤ beta, gamma ﹤ β.
The further technical solution of the utility model is: the upper, middle and lower is along the sectionally assembled medicine in polygamy side
The vertical height of type cover axis direction is respectively H1, H2 and H3, and H1 ﹤ H2, H1+H2 ﹥ H3.
Invention effect
The utility model has the technical effect that the sectionally assembled cavity liner in polygamy side can overcome the disadvantages that existing traditional large aperture is penetrated
Bullet penetration depth relatively low shortcoming in hole can increase perforating bullet and wear deep 10% or more, and then increases oil productivity.
Detailed description of the invention
Fig. 1 is present apparatus structural schematic diagram
Description of symbols: at the top of 1-；In the middle part of 2-；The lower part 3-
Specific embodiment
Referring to Fig. 1, this product mainly includes the three stage structure being made of the metal powder material of two kinds of different densities: cavity liner
Upper section 1, cavity liner middle section 2 and cavity liner lower section 3.It is characterized by: 1 ingredient of a. cavity liner upper section is high desnity metal powder material,
Cavity liner middle section 2 and 3 ingredient of cavity liner lower section are low density metals powder material.B. the cone angle of cavity liner upper, middle and lower segment is not
Together, wherein α ﹤ beta, gamma ﹤ β, the restrictive condition can be realized that body of a gun eyelet is small, the big perforating effect of casing eyelet.C. on cavity liner,
In, lower three sections of height it is different, wherein H1 ﹤ H2, smaller H1+H2 ﹥ H3. upper section height is in order to increase miding level height, thus favorably
In forming larger aperture on casing, lower section is to reaming and wears deep effect less, therefore height cannot be too long.
Wherein, high desnity metal powder material refers to be 9~14g/cm of density3Composite metal powder, low density metals powder material refers to
It is 7~8g/cm of density3Composite metal powder.It in the present embodiment, include tungsten powder, bismuth meal and electrolysis in high desnity metal powder
Copper, wherein tungsten powder content is 60%, and bismuth meal content is 15%, the mixed metal powder that electrolysis copper content is 25%, than for mass ratio.
It include electrolytic copper powder, red copper ball powder, bismuth meal and iron powder in low density metals powder, electrolytic copper powder content is 60%, and red copper ball powder contains
Amount is 20%, and bismuth meal content is 10%, the mixed metal powder that iron content is 10%, than for mass ratio.On it should be noted that
It states each element powder contained in metal powder and is not limited solely to the embodiment, as long as meeting this density range.
When manufacturing this product, the first installation mold on spinning machine calculates upper section according to according to quality=density * volume
And the metal powder quality that middle and lower sections structure needs.High density formula metal powder weight and the metal powder weight of low-density formula are successively
Two kinds of metal powders are weighed, and are respectively placed in different iron charge boxes, are then again successively fallen two kinds of metal powders by iron charge box
Enter in spinning machine body central hole and rotates compression moulding.In rotary course, since two kinds of metal powder densities are different, high density gold
Belonging to powder will be left in the lower part of low density metals powder, and then be pressed into the upper portion of cavity liner, and low density metals powder then will be by
It is pressed into middle section and the lower section of cavity liner.The sectionally assembled cavity liner in polygamy side is thus suppressed.Specifically: it will press
The parameters such as machine pressure, revolving speed (being lower than rated speed) are debugged；According to quality=density * volume, calculate upper section and under
The metal powder quality that segment structure needs；The metal powder of high density formula metal powder and low-density formula is successively weighed, and is put respectively
It is placed in different iron charge boxes；High desnity metal powder is first poured into spin for some time in spinning machine body central hole, then will
Low density metals powder, which pours into, wherein (to be rotated 5-10s or so, is to allow the metal powder poured into spinning machine body central hole to be in equal
Even dispersity rather than stacking states, are subsequently poured into 7-8g/cm3Metal powder；2. compacting when be not first suppress top, and
It is etc. to pour into 7-8g/cm3Metal powder after it is re-compacted)；Press slide downlink carries out drug-shaped cover compacting and pressure maintaining for a period of time, makes
Drug-shaped cover compression moulding；In place, die plate insert uplink simultaneously ejects drug-shaped cover press slide uplink
When manufacture, first the installation mold on spinning machine, is formulated metal powder weight and low-density according to the high density calculated
The metal powder weight of formula successively weighs two kinds of metal powders, and is respectively placed in different iron charge boxes, then passes through iron charge again
Box, which successively pours into two kinds of metal powders in spinning machine body central hole, rotates compression moulding.In rotary course, due to two kinds of gold
It is different to belong to powder density, high desnity metal powder will be left in the lower part of low density metals powder, and then be pressed into the upper portion of cavity liner,
And low density metals powder will then be pressed into middle section and the lower section of cavity liner.Polygamy side's piecewise combination is thus suppressed
Formula cavity liner.
The utility model is suitable for 89 types, 102 types, 114 types, 127 types and 178 type big diameter and deep penetrating perforating bumb cavity liners
Compacting, can effectively improve perforating bullet while guaranteeing that casing forms large aperture and wear as deep as 10%-20%.
Claims (3)
1. a kind of sectionally assembled cavity liner in polygamy side, the sectionally assembled cavity liner in polygamy side is cone font, and tip is
Smooth transition, is symmetrically divided into upper, middle and lower along the conical surface；It is characterized in that, it is 9-14g/cm that top, which is density,3It is compound
Metal powder is suppressed, and middle part and lower part are density 7-8g/cm3Composite metal powder suppress.
2. a kind of sectionally assembled cavity liner in polygamy side as described in claim 1, which is characterized in that the top, middle part and
The corresponding cone angle in lower part is respectively α, β and γ, and α ﹤ beta, gamma ﹤ β.
3. a kind of sectionally assembled cavity liner in polygamy side as described in claim 1, which is characterized in that the top, middle part and
Lower part is respectively H1, H2 and H3 along the vertical height of the sectionally assembled cavity liner axis direction in polygamy side, and H1 ﹤ H2, H1+H2 ﹥
H3。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820576811.XU CN208280949U (en) | 2018-04-20 | 2018-04-20 | A kind of sectionally assembled cavity liner in polygamy side |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820576811.XU CN208280949U (en) | 2018-04-20 | 2018-04-20 | A kind of sectionally assembled cavity liner in polygamy side |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208280949U true CN208280949U (en) | 2018-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820576811.XU Active CN208280949U (en) | 2018-04-20 | 2018-04-20 | A kind of sectionally assembled cavity liner in polygamy side |
Country Status (1)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110145972A (en) * | 2019-05-17 | 2019-08-20 | 四川石油射孔器材有限责任公司 | Density gradient function cavity liner and its manufacturing method for perforating bullet |
| CN113950607A (en) * | 2019-06-12 | 2022-01-18 | 狩猎巨人公司 | Triangular shaped charge liner with jet former |
-
2018
- 2018-04-20 CN CN201820576811.XU patent/CN208280949U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110145972A (en) * | 2019-05-17 | 2019-08-20 | 四川石油射孔器材有限责任公司 | Density gradient function cavity liner and its manufacturing method for perforating bullet |
| CN110145972B (en) * | 2019-05-17 | 2021-06-22 | 四川石油射孔器材有限责任公司 | Density gradient functional liner for perforating charge and manufacturing method thereof |
| CN113950607A (en) * | 2019-06-12 | 2022-01-18 | 狩猎巨人公司 | Triangular shaped charge liner with jet former |
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