CN202012336U - Integral sealing perforation sand-proof device - Google Patents
Integral sealing perforation sand-proof device Download PDFInfo
- Publication number
- CN202012336U CN202012336U CN201120128244XU CN201120128244U CN202012336U CN 202012336 U CN202012336 U CN 202012336U CN 201120128244X U CN201120128244X U CN 201120128244XU CN 201120128244 U CN201120128244 U CN 201120128244U CN 202012336 U CN202012336 U CN 202012336U
- Authority
- CN
- China
- Prior art keywords
- sand control
- perforation
- plug
- control plug
- integral body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000007789 sealing Methods 0.000 title 1
- 239000004576 sand Substances 0.000 claims abstract description 138
- 239000007769 metal material Substances 0.000 claims abstract description 9
- 238000009434 installation Methods 0.000 claims description 24
- 239000003380 propellant Substances 0.000 claims description 18
- 229920000914 Metallic fiber Polymers 0.000 claims description 6
- 230000002265 prevention Effects 0.000 abstract description 9
- 238000001914 filtration Methods 0.000 abstract description 6
- 210000001503 joint Anatomy 0.000 abstract 1
- 239000000843 powder Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 229910001220 stainless steel Inorganic materials 0.000 description 6
- 239000007788 liquid Substances 0.000 description 3
- 239000003129 oil well Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241001388119 Anisotremus surinamensis Species 0.000 description 1
- 238000010793 Steam injection (oil industry) Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000001458 anti-acid effect Effects 0.000 description 1
- 229910000963 austenitic stainless steel Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000003721 gunpowder Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
Abstract
The utility model provides a wholly seal perforation sand control device, wherein, perforation sand control device includes: a perforating charge; the front bin is in butt joint with the perforating bullet, and a powder pushing assisting part is arranged in the front bin; the sand prevention plug is arranged in the front bin, and an outlet for ejecting the sand prevention plug is formed in the front bin; the sand control plug is provided with a through hole along the perforation direction, is made of filtering metal materials and has a rigid shape under a normal state. The utility model discloses a perforation sand control device, the modern design, simple structure is compact, the dependable performance, processing is convenient.
Description
Technical field
The utility model relates to the oil-gas well perforator field, particularly, relate to and a kind ofly be injected into the sand control plug in the perforation tunnel and be positioned at the perforation sand control installation of realizing sand control around the duct of sleeve pipe, promptly the sand control plug integral body integral body that is enclosed in the exit, perforation tunnel is sealed the perforation sand control installation.
Background technology
In the oil and gas exploitation process, to note the problem of shaking out usually.At present, anti-sand method has and adopts mechanical sand control pit shaft, chemical sand control, arch sand control etc., but said method or cost height, process complexity, otherwise period of validity short, pollute greatly, the method for perforation sand control has appearred recently.
Existing perforation sand control installation is a duct fill-type perforation sand control, at perforation simultaneously with the sand prevention material filling in the perforation tunnel, realize the purpose of sand control.Usually, it is scattered adopting sand prevention material, comes off but be easy to generate after scattered sand prevention material is piled up, and the effect of sand control is impermanent.
In addition, also there is prior art to adopt stainless steel wire group and cerioid irregular particle thing, advance by perforation and to fill out the duct oral area, but the problem of this way is to guarantee that stainless steel wire group can link together mutually and can become as a whole sand control structure.And the stroke of stainless steel wire group depends primarily on the resistance of thrust and perforation tunnel, and being difficult to of stainless steel wire group is positioned at the duct oral area as requested, and stainless steel wire group easy deformation.
The utility model content
The utility model aims to provide a kind of integral body and seals the perforation sand control installation, to solve the problem of existing perforation sand control installation sand control time weak point, weak effect.
For this reason, the utility model proposes a kind of integral body and seal the perforation sand control installation, wherein, described perforation sand control installation comprises: perforating bullet; Dock with described perforating bullet in preceding storehouse, has assistant propellant portion in the described preceding storehouse; The sand control plug is arranged in the described preceding storehouse, is provided with the outlet that described sand control plug penetrates in the described preceding storehouse; Described sand control plug has along the through hole of perforation direction, and described sand control plug is made by the filterability metal material and had rigid shape under normal conditions.
Further, described sand control plug is made by metallic fiber.
Further, described sand control plug head outline is little, and the afterbody outline is big.
Further, described sand control plug is taper or taper type.
Further, the through hole of described sand control plug is the dentation straight hole.
Further, described assistant propellant portion is the assistant propellant ring, and described assistant propellant ring set is located at described sand control beyond the Great Wall.
Further, described sand control plug is installed in the gun barrel of perforating gun near the place, perforation tunnel, and described perforating bullet is installed in the gun barrel of perforating gun away from place, described perforation tunnel.
Owing to be provided with the sand control plug in the preceding storehouse of perforation sand control installation of the present utility model, the sand control plug is made by the filterability metal material and is had rigid shape under normal conditions, after perforating bullet penetrates, the sand control plug is filled in the screen pack that has rigid shape under the formation normality in the perforation tunnel that perforating bullet forms, the sand prevention material that has overcome prior art comes off owing to scattered being easy to generate, the problem that the effect of sand control is impermanent, also overcome the sand prevention material of making by flexible material do not have solid shape easily by liquid or oilbearing stratum change monnolithic case, the forfeiture plug is stifled and the problem of filtering function.
Description of drawings
Fig. 1 is the schematic diagram according to the sectional structure of the perforation sand control installation of the utility model embodiment;
Fig. 2 is the left TV structure according to the sand control plug of the utility model embodiment;
Fig. 3 is the A-A direction sectional structure of Fig. 2;
Fig. 4 is the structure of perforation tunnel.
The drawing reference numeral explanation:
1, preceding storehouse 2, assistant propellant portion 3, sand control plug 4, perforating bullet
5, perforation casing 31, sand control plug through hole 33, sand control plug wall body
7, sleeve pipe 8, perforation tunnel 11, outlet
The specific embodiment
Understand for technical characterictic of the present utility model, purpose and effect being had more clearly, now contrast the description of drawings specific embodiment of the present utility model.
Fig. 1 is the schematic diagram according to the sectional structure of the perforation sand control installation of the utility model embodiment, as shown in Figure 1, comprises according to the perforation sand control installation of the utility model embodiment: perforating bullet 4; Dock with described perforating bullet 4 in preceding storehouse 1, and 1 has assistant propellant portion 2 in the described preceding storehouse; Sand control plug 3 is arranged in the described preceding storehouse 1, is provided with the outlet 11 that described sand control plug penetrates in the described preceding storehouse 1; Described sand control plug 3 has along the through hole of perforation direction, and described sand control plug 3 is made by the filterability metal material and had rigid shape under normal conditions.
Described sand control plug 3 is installed on the place, gun barrel 5 interior close perforation tunnel of perforating gun, and described perforating bullet is installed in the perforating gun away from place, described perforation tunnel.As shown in Figure 4, be provided with apparatus to cause bursting such as detonating fuse and/or explosive in the perforating bullet 4 and form perforation tunnels 8 to penetrate sleeve pipe 7.Preceding storehouse 1 is generally hood-like, mainly plays the effect of protection assistant propellant portion 2 and sand control plug 3.Assistant propellant is contained in assistant propellant portion 2, and when perforating bullet 4 penetrated, assistant propellant was ignited by perforating bullet 4, is injected in the perforation tunnel thereby promote sand control plug 3.Wherein, the primary structure of perforating bullet 4, preceding storehouse 1 and assistant propellant portion 2 can be with reference to prior art.
As shown in Figure 3, the center of sand control plug 3 is provided with through hole 31, forms blast stream to form the perforation tunnel so that perforating bullet 4 therefrom penetrates.Sand control plug 3 is filled in the perforation tunnel of perforating bullet 4 ejaculations subsequently, the taper sand control plug that has a through hole 31 is under the detonation pressure of gunpowder promotes and formed a whole sand control plug under the immense pressure in duct and be filled in the perforation tunnel, in this process, original sand control plug has the conical in shape complete obiteration of through hole 31, result after perforation is finished is that the sand control plug in the perforating gun is pushed in the perforation tunnel completely compactly extruding to be reached in the casing wall.Sand control plug 3 is extruded under HTHP, contracts in the sand control plug wall body 33, and through hole 31 disappears, and forms the net plug at last.The shape of through hole 31 and size will adapt with the perforation ability of perforating bullet 4 so that last the disappearance forms the net plug.In case after sand control plug 3 formed the net plug, 3 of sand control plugs can not be out of shape easily, can not lose the stifled and filtering function of plug.
Described sand control plug 3 is made by the filterability metal material, and the filterability metal material is wanted can filter liquide, for example filters the metal material of oil or water, and the filterability metal material stops sandstone etc. to pass through simultaneously, to play the sand control effect.Described sand control plug 3 has rigid shape under normal conditions, like this, in being injected into the perforation tunnel and after being fixed in wherein, sand control plug 3 is deformation easily not, can or not do not lost the stifled and filtering function of plug by liquid (for example oil or water) or oilbearing stratum change monnolithic case, thereby overcome the sand prevention material of making by flexible material (for example stainless steel pompon etc.) and do not have solid shape and changed monnolithic case by liquid or oilbearing stratum easily, the forfeiture plug blocks up the problem with filtering function, avoided the disconnected bar of perforation sand prevention material in the past, not enough, sand control plug position is leading or delay, so that disadvantage such as come off.Pit shaft can keep original wellbore conditions behind the sand control, for the later stage job execution lays the foundation.The utility model is discussed under the situation of the perforation tunnel 8 that identical perforating bullet 4 penetrates, with respect to the sand control installation of prior art, and the structure of sand control plug 3 and effect.If the utility model adopts improved perforating bullet 4, sand control installation of the present utility model might reach better effect.
Further, described sand control plug is made by metallic fiber.This sand control plug of being made by metallic fiber has suitable permeability, and the sand controlling result that can realize ideal has the ability (can use for a long time) of high temperature resistance, the corrosion of antiacid, alkaline media in PH2～11 media.Described sand control plug is for example made by the Austenitic stainless steel wire, can satisfy the technical requirements of long-term continuous steam injection, does not hinder oil well to carry out measures such as acidifying, alkali cleaning again.And because the sand control plug is made by metallic fiber, and metallic fiber forms a three-dimensional sand control network, and with respect to existing plane sand control mode, sand control plug of the present utility model sand block and filter sand ability are strong, flow resistance is little, and the oil well ordinary production is not had influence.Compare with other sand control measure, its sand control capability is better, and period of validity is longer.Create condition for the stable high yield exploitation of oil well, also helped the perforation sand control construction operation of horizontal well, sidetracked hole.Further, as shown in figures 1 and 3, described sand control plug 3 head outlines are little, and the afterbody outline is big, like this, help reducing to insert the resistance in the perforation tunnel, help the shutoff perforation tunnel, and formed three-dimensional sand control screens.Further, described sand control plug 3 is taper or taper type.Like this, be convenient to processing, be convenient to the shutoff perforation tunnel.
The through hole 31 of described sand control plug for example can be manhole.Further, as shown in Figures 2 and 3, the through hole 31 of described sand control plug is the dentation straight hole.The sand control plug be hollow be in order to reserve enough passages to jet motion, whole sand control plug is to be squeezed into cone in the process of motion, therefore the design of the dentation of whole sand control plug helps its Free Transform at the volley, not only make the external surface of sand control plug 3 be subjected to the immense pressure in duct, and help making sand control plug 3 also to be subjected to the immense pressure in duct internally at through hole 31 places, sand control plug 3 is when being subjected to inside and outside immense pressure, be out of shape more abundant, thereby in the perforation process, eliminate the whole sand control plug that through hole 31 forms interior solid easilier.The through hole 31 of sand control plug be the dentation straight hole with respect to manhole, more help the densification of sand control plug.
Further, as shown in Figure 1, described assistant propellant portion 2 is the assistant propellant ring, and described assistant propellant ring set is located at outside the described sand control plug 3, like this, can fully promote sand control plug 3 and be injected in the perforation tunnel.
Introduce use of the present utility model below: as shown in Figure 1, the perforation sand control installation is installed in the gun barrel 5 of perforating gun, wherein, described sand control plug 3 is installed on the place, gun barrel 5 interior close perforation tunnel of perforating gun, described perforating bullet is installed in the perforating gun away from place, described perforation tunnel, is lowered in the pit shaft and carries out perforation by certain designing requirement.This sand control plug 3 during perforation is filled out in the perforation tunnel 8 that perforation gets.Sand control plug 3 is extruded under HTHP, contracts in the sand control plug wall body 33, and through hole 31 disappears, and forms the net plug at last.In case after sand control plug 3 formed the net plug, 3 of sand control plugs can not be out of shape easily, can not lose the stifled and filtering function of plug, thereby form stable and stereoscopic sand control structure.Perforation sand control installation of the present utility model, modern design, simple and compact for structure, dependable performance, easy to process.
The above only is the schematic specific embodiment of the utility model, is not in order to limit scope of the present utility model.For each ingredient of the present utility model can make up under the condition of not conflicting mutually; any those skilled in the art; equivalent variations of having done under the prerequisite that does not break away from design of the present utility model and principle and modification all should belong to the scope that the utility model is protected.
Claims (7)
1. an integral body is sealed the perforation sand control installation, it is characterized in that, described integral body is sealed the perforation sand control installation and comprised:
Perforating bullet;
Dock with described perforating bullet in preceding storehouse, has assistant propellant portion in the described preceding storehouse;
The sand control plug is arranged in the described preceding storehouse, is provided with the outlet that described sand control plug penetrates in the described preceding storehouse;
Described sand control plug has along the through hole of perforation direction, and described sand control plug is made by the filterability metal material and had rigid shape under normal conditions.
2. integral body as claimed in claim 1 is sealed the perforation sand control installation, it is characterized in that, described sand control plug is made by metallic fiber.
3. integral body as claimed in claim 2 is sealed the perforation sand control installation, it is characterized in that, described sand control plug head outline is little, and the afterbody outline is big.
4. integral body as claimed in claim 2 is sealed the perforation sand control installation, it is characterized in that, described sand control plug is taper or taper type.
5. integral body as claimed in claim 1 is sealed the perforation sand control installation, it is characterized in that, the through hole of described sand control plug is the dentation straight hole.
6. integral body as claimed in claim 1 is sealed the perforation sand control installation, it is characterized in that, described assistant propellant portion is the assistant propellant ring, and described assistant propellant ring set is located at described sand control beyond the Great Wall.
7. integral body as claimed in claim 1 is sealed the perforation sand control installation, it is characterized in that, described sand control plug is installed in the gun barrel of perforating gun near the place, perforation tunnel, and described perforating bullet is installed in the gun barrel of perforating gun away from place, described perforation tunnel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120128244XU CN202012336U (en) | 2011-04-27 | 2011-04-27 | Integral sealing perforation sand-proof device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120128244XU CN202012336U (en) | 2011-04-27 | 2011-04-27 | Integral sealing perforation sand-proof device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202012336U true CN202012336U (en) | 2011-10-19 |
Family
ID=44782948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120128244XU Expired - Lifetime CN202012336U (en) | 2011-04-27 | 2011-04-27 | Integral sealing perforation sand-proof device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202012336U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102200005A (en) * | 2011-04-27 | 2011-09-28 | 中国石油天然气股份有限公司 | Integral sealing perforation sand-proof device |
-
2011
- 2011-04-27 CN CN201120128244XU patent/CN202012336U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102200005A (en) * | 2011-04-27 | 2011-09-28 | 中国石油天然气股份有限公司 | Integral sealing perforation sand-proof device |
| CN102200005B (en) * | 2011-04-27 | 2015-05-06 | 中国石油天然气股份有限公司 | Integral sealing perforation sand-proof device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111019 |
|
| CX01 | Expiry of patent term |