CN102200005A - Integral-sealing perforation sand prevention device - Google Patents
Integral-sealing perforation sand prevention device Download PDFInfo
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- CN102200005A CN102200005A CN2011101067113A CN201110106711A CN102200005A CN 102200005 A CN102200005 A CN 102200005A CN 2011101067113 A CN2011101067113 A CN 2011101067113A CN 201110106711 A CN201110106711 A CN 201110106711A CN 102200005 A CN102200005 A CN 102200005A
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- sand control
- perforation
- control plug
- plug
- sealed
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Abstract
The invention provides an integral-sealing perforation sand prevention device which comprises a perforating bullet, a front bin and a sand prevention plug, wherein the front bin is in butt joint with the perforating bullet; a boosting powder part is arranged in the front bin; the sand prevention plug is arranged in the front bin; an exit for ejecting the sand prevention plug is arranged in the front bin; and the sand prevention plug is provided with a through hole along the perforation direction and made from a filtering metal material, and has a rigid shape in a normal state. The perforation sand prevention device provided by the invention has a novel design, a simple and compact structure and reliable performance, and is convenient to process.
Description
Technical field
The present invention 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 flexible 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 stainless steel wire group is difficult to be positioned at the duct oral area as requested, and stainless steel wire group easy deformation.
Summary of the invention
The present invention 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 present invention proposes a kind of integral body and seals the perforation sand control installation, and 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 is for example made by the Austenitic stainless steel.
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.
Because be provided with the sand control plug in the preceding storehouse of perforation sand control installation of the present invention, the sand control plug is made by the filterability metal material and had rigid shape under normal conditions, unlike flexible material, for example stainless steel wire is rolled into a ball loose and easy deformation like that.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 embodiment of the invention;
Fig. 2 is the left TV structure according to the sand control plug of the embodiment of the invention;
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 invention, purpose and effect being had more clearly, now contrast description of drawings the specific embodiment of the present invention.
Fig. 1 is the schematic diagram according to the sectional structure of the perforation sand control installation of the embodiment of the invention, as shown in Figure 1, comprises according to the perforation sand control installation of the embodiment of the invention: 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, can be as flexible material (for example stainless steel pompon etc.) loose and easy deformation.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.) 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, the disconnected bar of perforation sand prevention material, deficiency have in the past been avoided, 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 present invention discusses 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 present invention adopts improved perforating bullet 4, sand control installation of the present invention 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, the sand controlling result that can realize ideal.Further, described sand control plug is for example made by the Austenitic stainless steel, has the ability (can use in PH2～11 media for a long time) of high temperature resistance, the corrosion of antiacid, alkaline media.Can satisfy the technical requirements of long-term continuous steam injection, 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 invention 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 invention 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.The shaped design of sand control plug can be implemented in the duct accurately location, avoids being subjected to the influence of strata pressure height sand prevention material to occur and pushes away to advance or advance the excessive sand control that causes to fail.Perforation sand control installation of the present invention, modern design, simple and compact for structure, dependable performance, easy to process.
The above only is the schematic specific embodiment of the present invention, is not in order to limit scope of the present invention.For each ingredient of the present invention 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 invention and principle and modification all should belong to the scope of protection of the invention.
Claims (8)
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.
8. 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 the Austenitic stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110106711.3A CN102200005B (en) | 2011-04-27 | 2011-04-27 | Integral-sealing perforation sand prevention device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110106711.3A CN102200005B (en) | 2011-04-27 | 2011-04-27 | Integral-sealing perforation sand prevention device |
Publications (2)
| Publication Number | Publication Date |
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| CN102200005A true CN102200005A (en) | 2011-09-28 |
| CN102200005B CN102200005B (en) | 2015-05-06 |
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| CN201110106711.3A Active CN102200005B (en) | 2011-04-27 | 2011-04-27 | Integral-sealing perforation sand prevention device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102865058A (en) * | 2012-09-14 | 2013-01-09 | 中北大学 | Multi-pulse synergistic perforation device |
| CN110671081A (en) * | 2019-10-12 | 2020-01-10 | 中国石油集团渤海石油装备制造有限公司石油机械厂 | Perforating gun for horizontal well |
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| CN2408235Y (en) * | 1999-07-20 | 2000-11-29 | 辽河石油勘探局钻采工艺研究院 | Well completion device for oil well with jet hole and sand-proof two function |
| CN2611593Y (en) * | 2003-03-19 | 2004-04-14 | 中国石油天然气股份有限公司 | Composite perforation sand proof device of oil well |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102865058A (en) * | 2012-09-14 | 2013-01-09 | 中北大学 | Multi-pulse synergistic perforation device |
| CN102865058B (en) * | 2012-09-14 | 2015-09-16 | 中北大学 | Multi-pulse synergistic perforation device |
| CN110671081A (en) * | 2019-10-12 | 2020-01-10 | 中国石油集团渤海石油装备制造有限公司石油机械厂 | Perforating gun for horizontal well |
| CN110671081B (en) * | 2019-10-12 | 2022-06-07 | 中国石油天然气集团有限公司 | Perforating gun for horizontal well |
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| Publication number | Publication date |
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| CN102200005B (en) | 2015-05-06 |
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Inventor after: Lv Min Inventor after: Zong Wei Inventor after: Yu Xiaoxi Inventor after: Zhao Yali Inventor after: Gao Jinyu Inventor after: Sun Houli Inventor after: Zhang Jianjun Inventor after: Wu Zhiyong Inventor after: Han Zongzheng Inventor after: Zhang Xin Inventor after: Chen Dazhao Inventor after: Cong Zhixin Inventor after: Chen Lei Inventor before: Lv Min Inventor before: Cong Zhixin Inventor before: Li Xueliang Inventor before: Zhang Jun Inventor before: Sun Houli Inventor before: Zhang Jianjun Inventor before: Zhong Jingru Inventor before: Shi Huisheng Inventor before: Wu Zhiyong Inventor before: Zhang Xin Inventor before: Chen Dazhao Inventor before: Zuo Xiushi |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: LV MIN SUN HOULI ZHANG JIANJUN ZHONG JINGRU SHI HUISHENG WU ZHIYONG ZHANG XIN CHEN DAZHAO ZUO XIUSHI CONG ZHIXIN LI XUELIANG ZHANG JUN TO: LV MIN SUN HOULI ZHANG JIANJUN WU ZHIYONG HAN ZONGZHENG ZHANG XIN CHEN DAZHAO CONG ZHIXIN CHEN LEI ZONG WEI YU XIAOXI ZHAO YALI GAO JINYU |