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Numéro de publicationCN101566056 B
Type de publicationOctroi
Numéro de demandeCN 200910022819
Date de publication25 avr. 2012
Date de dépôt4 juin 2009
Date de priorité4 juin 2009
Autre référence de publicationCN101566056A
Numéro de publication200910022819.7, CN 101566056 B, CN 101566056B, CN 200910022819, CN-B-101566056, CN101566056 B, CN101566056B, CN200910022819, CN200910022819.7
Inventeurs戴鹏, 段萍
Déposant西安瑞通能源科技有限公司
Exporter la citationBiBTeX, EndNote, RefMan
Liens externes:  SIPO, Espacenet
Body-free coaxial following synergistic perforator
CN 101566056 B
Résumé
The invention discloses a body-free coaxial following synergistic perforator, which comprises a body-free perforator firing mount and a body-free perforating bullet arranged on the firing mount, wherein the body-free perforating bullet comprises a cartridge case, a powder-type cover and a high explosive, the front end outer wall of the cartridge case is provided with an initiation half slot and apressure wire, the front end inner wall of the cartridge case is provided with a booster hole, the back end of the cartridge case is provided with a fracturing powder box airtightly, and special fracturing powder is poured in the fracturing powder box and is distributed annularly along the inner wall of the fracturing powder box, wherein the special fracturing powder is prepared by evenly mixing ammonium permanganate of which the weight percentage is between 50 and 80 percent and aluminum powder of which the weight percentage is between 20 and 50 percent. The body-free coaxial following synergistic perforator has a simple structure and reliable mounting, the special fracturing powder is initiated and performs pulse fracturing on stratums directly while the powder-type cover forms high-speed jet flow to perform perforation, and the fracturing effect of the perforation is good, thus the body-free coaxial following synergistic perforator is particularly suitable for operations of high-density and low-permeability stratums.
Revendications(4)  Langue du texte original : Chinois
1. 一种无枪身同轴随进式射孔器,包括无枪身射孔器弹架(¾和安装在所述无枪身射孔器弹架(¾上的无枪身射孔弹,所述无枪身射孔弹包括弹壳(3)、设置在弹壳(3)内部的药型罩(5)以及压装在弹壳(¾和药型罩(¾之间的高能炸药G),所述弹壳(¾的前端外壁上设置有用于放置导爆索的起爆半圆槽和用于固定该导爆索的压丝(1),所述弹壳(3) 的前端内壁上设置有充满高能炸药(4)的传爆孔,其特征在于:所述弹壳C3)的后端密封安装有碗形压裂药盒(8),其中,在弹壳C3)的后端外侧设置有环形凸台,所述压裂药盒(8)的前部紧密套装在所述环形凸台的外侧,所述压裂药盒(8)内浇注有专用压裂药(7),所述专用压裂药(7)沿压裂药盒(8)的内壁环形分布,并在压裂药盒(8)的内腔中部形成与所述药型罩(5)内腔相通的射流通道(9),所述弹壳(3)、药型罩(5)和压裂药盒(8)的中心线位于同一直线上;所述专用压裂药(7)由重量百分比为50-80%的高锰酸铵和重量百分比为20-50%的铝粉均勻混合制成。 A coaxial with the body - free perforator into the formula, including body - free perforator bomb racks (¾ and mounted on the body - free perforator bomb racks (no Barrel ¾ on the shaped charges said non Barrel shaped charges including cartridge (3), set up in the shell (3) Internal medicine-type cover (5) and pressed onto the cartridge case (¾ and Liner (high explosives between G ¾), Set on the front inner wall of the cartridge case (¾ of the front outer wall provided with a place detonating cord initiation semicircular grooves and for holding the detonating cord pressure wire (1), the cartridge case (3) are filled with high explosives (4) of the booster bore, characterized in that: said shell C3) attached to the rear end of the sealing kit fracturing bowl (8), wherein the shell C3) is provided with a rear end of the outer annular projection, the fracturing said front portion cartridge (8) is tightly fitted over the outside of said annular projection, said kit fracturing fracturing dedicated casting agents (7) (8), the dedicated fracturing agent (7 ) along the fracture kit (8) the distribution of the inner wall of the ring and fracturing kit (8) is formed and the central lumen of liner (5) interior chamber of the jet channel (9), the cartridge case (3) of liner (5) and fracturing kit (8) of the center line in a straight line; the dedicated fracturing drugs (7) by the percentage of 50-80% by weight of ammonium permanganate and weight 20-50% of the percentage of aluminum powder blend uniformity.
2.按照权利要求1所述的无枪身同轴随进式射孔器,其特征在于:所述环形凸台的外侧表面上开有环形凹槽,所述环形凹槽中设置有密封圈(6)。 2. No Barrel according to claim 1, wherein the perforator coaxial with the feed formula, wherein: the open annular groove on the outer surface of the annular projection, said annular groove is provided with seals (6).
3.按照权利要求2所述的无枪身同轴随进式射孔器,其特征在于:所述密封圈(6)由氟橡胶制成。 3. No Barrel according to claim 2, wherein the perforator coaxial with the feed formula, wherein: the sealing ring (6) is made of fluoro rubber.
4.按照权利要求1或2所述的无枪身同轴随进式射孔器,其特征在于:所述无枪身射孔弹通过弹壳(¾和压裂药盒(8)安装在无枪身射孔器弹架(¾上。 4. No Barrel 1 or claim 2, wherein the perforator coaxial with the feed formula, wherein: the non-Barrel shaped charges mounted by casings (¾ and fracturing kit (8) No Barrel perforator bomb racks (¾ on.
Description  Langue du texte original : Chinois

无枪身同轴随进式射孔器 Coaxial with the body - free perforator into the formula

技术领域 Technical Field

[0001] 本发明涉及一种油井射孔压裂复合装置,尤其是涉及一种无枪身同轴随进式射孔 [0001] The present invention relates to an oil well perforating fracturing composite device, and more particularly to a non-coaxial with the feed formula perforation Barrel

O O

背景技术 Background

[0002] 现有的射孔压裂复合器均为有枪身设计,在使用其进行油井射孔压裂作业时,复合药在枪内起爆并将射孔枪预制泄压孔压开,对井筒产生压力,井压升高再对地层产生压力,数据统计,射孔压裂后的水泥环深度为800mm左右,压裂裂缝为2500mm左右,所以整个做功过程能量损耗大,射孔压裂效果一般;且由于枪身的内部空间狭小,整个装置的设计容易受到限制。 [0002] Perforating and Fracturing existing devices are designed to have a Barrel in the use of its oil well perforating fracturing operations performed, the composite drug initiation in the guns and the guns prefabricated pressure relief hole open on wellbore generate pressure, hypertension well again put pressure on the formation, statistics, cement perforation after fracturing depth of about 800mm, fracture is about 2500mm, so the whole acting process of energy loss, perforating fracturing effect general; and because the internal space Barrel narrow design of the entire device is easily limited. 而现有的无枪身射孔器只能用于单纯的油井射孔作业,不能在射孔的同时对地层进行压裂。 The existing body - free perforator only for pure well perforating operations, while not in perforating fracturing the formation.

发明内容 DISCLOSURE

[0003] 本发明所要解决的技术问题在于针对上述现有技术中的不足,提供一种无枪身同轴随进式射孔器,其结构简单,安装可靠,能在药型罩形成高速射流进行射孔的瞬间,专用压裂药起爆并直接对地层进行脉冲压裂,射孔压裂效果好。 [0003] The technical problem to be solved by the present invention is to address the above deficiencies in the prior art to provide a coaxial with the body - free perforator into the formula, its structure is simple to install, reliable, capable of forming a high-speed jet Liner perforating the moment, dedicated fracturing drug initiation and direct the formation pulse fracturing, well perforating fracturing effect.

[0004] 为解决上述技术问题,本发明采用的技术方案是:一种无枪身同轴随进式射孔器, 包括无枪身射孔器弹架和安装在所述无枪身射孔器弹架上的无枪身射孔弹,所述无枪身射孔弹包括弹壳、设置在弹壳内部的药型罩以及压装在弹壳和药型罩之间的高能炸药,所述弹壳的前端外壁上设置有用于放置导爆索的起爆半圆槽和用于固定该导爆索的压丝,所述弹壳的前端内壁上设置有充满高能炸药的传爆孔,其特征在于:所述弹壳的后端密封安装有碗形压裂药盒,其中,在弹壳的后端外侧设置有环形凸台,所述压裂药盒的前部紧密套装在所述环形凸台的外侧,所述压裂药盒内浇注有专用压裂药,所述专用压裂药沿压裂药盒的内壁环形分布,并在压裂药盒的内腔中部形成与所述药型罩内腔相通的射流通道, 所述弹壳、药型罩和压裂药盒的中心线位于同一直线上;所述专用压裂药由重量百分比为50-80 %的高锰酸铵和重量百分比为20-50 %的铝粉均勻混合制成。 [0004] In order to solve the above problems, the technical aspect of the present invention is used: a non-coaxial with the feed formula perforating gun body, comprising body - free perforator bomb racks and mounting perforation in the body - free is no bomb racks Barrel shaped charges, including the non-perforating bullets Barrel shells disposed inside the shell of the Liner and the press-fit between the shell and the Liner high explosive, the cartridge case the front end of the outer wall is provided for placing detonating cord detonator wire semicircular grooves and pressure for holding the detonating cord is provided with holes filled with high explosive booster on the front inner wall of the cartridge case, wherein: the cartridge case The rear end of the bowl seal mounted fracturing kit, wherein the rear end of the outer shell is provided with an annular projection, the front portion of the cartridge fracturing tight package in the outer annular projection, said pressure pouring a dedicated internal crack fracture medicine kit, the kit dedicated fracturing fracturing along the inner wall of the drug distribution ring and fracturing kit form with the central lumen Liner inner cavity of the jet channel the shells, the centerline of liner and fracturing kits in a straight line; the dedicated fracturing drug by the percentage of 50-80% by weight of ammonium permanganate and 20-50 wt% of aluminum uniform powder blend.

[0005] 所述环形凸台的外侧表面上开有环形凹槽,所述环形凹槽中设置有密封圈。 [0005] The open annular groove on the outside surface of the annular projection, the annular groove is provided with a sealing ring.

[0006] 所述密封圈由氟橡胶制成。 [0006] The sealing ring is made of Viton.

[0007] 所述无枪身射孔弹通过弹壳和压裂药盒安装在无枪身射孔器弹架上。 [0007] The perforated shells body - free kit installed by shells and fracturing body - free perforator in bomb rack.

[0008] 本发明与现有技术相比具有以下优点:1、本发明结构简单,现场安装使用方便,且安全可靠,不易发生事故。 [0008] The present invention over the prior art has the following advantages: 1, the structure of the present invention is simple, easy to use on-site installation and safe, reliable, easy accident. 2、本发明的做功过程中有效能量损耗小,射孔压裂效果好,特别适用于高致密、低渗透地层的作业。 2, the acting process of the present invention effective energy loss is small, good perforation fracturing effect, especially for high density, low permeability formations jobs. 弹壳后端设置有压裂药盒,在压裂药盒内部浇注有压裂效果好且成本小的专用压裂药,所以在导爆索作用下,高能炸药起爆(微秒级)并使药型罩形成高速射流的瞬间,专用压裂药起爆(毫秒级)并直接形成压裂体,压裂体同轴随进进入地层并直接对地层进行脉冲压裂,经实验证明,本发明射孔压裂后的水泥环深度能达到IOOOmm以上,压裂裂缝为3000mm左右,效果优于现有有枪身射孔压裂复合器。 The rear end of the shell is provided with a kit fracturing, fracturing fracturing is poured inside the kit and less cost effective dedicated fracturing medicine, so in effect detonating cord, detonating high explosive (microsecond) and drugs type cover forming an instant high-speed jet, dedicated fracturing drug initiation (in milliseconds) and direct the formation of fracturing body, fracturing body coaxial with the feed directly into the formation and the formation pulse fracturing experiment proved that the present invention perforating cement after fracturing depth can reach more than IOOOmm, fracture is about 3000mm, better than the existing unit has Barrel Perforating and Fracturing. [0009] 下面通过附图和实施例,对本发明的技术方案做进一步的详细描述。 [0009] By the following figures and examples, the technical aspect of the present invention are described in further detail do. 附图说明 Brief Description

[0010] 图1为本发明的结构示意图。 [0010] FIG. 1 a schematic structural view of the present invention.

[0011] 附图标记说明: [0011] Explanation of Symbols:

具体实施方式 DETAILED DESCRIPTION

[0015] 如图1所示,本发明包括无枪身射孔器弹架2和安装在无枪身射孔器弹架2上的无枪身射孔弹,无枪身射孔弹包括弹壳3、药型罩5和高能炸药4,药型罩5设置在弹壳3的内部并用来封装高能炸药4,高能炸药4通过压药装置压装在弹壳3和药型罩5之间。 [0015] 1, the present invention includes a body - free perforator bomb racks 2 mounted on the body - free perforator bullet perforating gun body frame 2 no bombs, no Barrel shaped charge including cartridge 3, of liner 5 and 4 high explosives, Liner 5 disposed inside the shell 3 and 4 are used to encapsulate high explosive, high explosive pressure medicine means 4 by press-fit between the shell 3 and Liner 5. 弹壳3的前端外壁上设置有用于放置导爆索的起爆半圆槽和用于固定该导爆索的压丝1,与所述起爆半圆槽相对在弹壳3的前端内壁上设置有充满高能炸药4的传爆孔。 The front end of the outer wall of the shell 3 is provided for placing detonating cord detonator wires semicircular groove and pressed for fixing the detonating cord 1, and the initiation semi-circular groove relative to the distal end of the inner wall of the shell 3 is provided with a full 4 high explosives The booster holes. 弹壳3的后端密封安装有碗形压裂药盒8,其中,在弹壳3的后端外侧设置有用于安装压裂药盒8的环形凸台,压裂药盒8的前部紧密套装在所述环形凸台的外侧。 Sealing the rear end of the cartridge case 3 is mounted fracturing kit bowl 8, wherein the rear end of the outer shell 3 is provided with a kit for mounting fracturing annular boss 8, the front portion 8 of the cartridge fracturing tightly fitted over The outer annular bosses. 压裂药盒8的内壁上浇注有专用压裂药7,即专用压裂药7沿压裂药盒8的内壁呈环状分布,并在压裂药盒8的内腔中部形成与药型罩5内腔相通的射流通道9,弹壳3、药型罩5和压裂药盒8的中心线位于同一直线上。 Pouring a dedicated drug on the inner wall fracturing fracturing kit 8 7 7 that is dedicated drug fracturing fracturing along the inner wall 8 kit was distributed in a ring, and in the central cavity 8 kit fracturing the formation and drug type cover 5 inner cavity of the jet channel 9, 3, 5 and fracturing of liner kit centerline of the shell 8 on the same line. 其中,无枪身射孔器弹架2为粉碎性弹架,帽形弹壳3由45号钢加工而成,圆锥形药型罩5由金属粉末制成,高能炸药4为聚黑-16,压裂药盒8由20号钢加工而成。 Wherein the body - free perforator bomb racks 2 is comminuted bomb racks, hat-shaped cartridge case 3 is processed by 45 steel made cone of liner 5 made of a metal powder, high explosives 4 poly black -16 8 Fracturing kit machined from steel made on the 20th.

[0016] 专用压裂药7由重量百分比为50-80%的高锰酸铵与重量百分比为20-50%的铝粉均勻混合制成后,再浇注在压裂药盒8内。 After the weight percentage of ammonium permanganate [0016] 7 by a special drug fracturing 50-80 wt% of 20 to 50% of aluminum powder blend evenly, then pour in the fracturing kit 8.

[0017] 实施例1 [0017] Example 1

[0018] 专用压裂药7由重量百分比为50%的高锰酸铵与重量百分比为50%的铝粉均勻混合制成。 The percentage by weight of ammonium permanganate and [0018] 7 by a dedicated fracturing drug percentage of 50% by weight 50% aluminum homogeneous blend.

[0019] 实施例2 [0019] Example 2

[0020] 专用压裂药7由重量百分比为60%的高锰酸铵与重量百分比为40%的铝粉均勻混合制成。 The percentage by weight of ammonium permanganate and [0020] 7 by a dedicated fracturing drug percentage of 60% by weight 40% aluminum powder blend uniformity.

[0021] 实施例3 [0021] Example 3

[0022] 专用压裂药7由重量百分比为80%的高锰酸铵与重量百分比为20%的铝粉均勻混合制成。 [0022] 7 by a dedicated fracturing drug percentage of 80% by weight of ammonium permanganate and 20% wt aluminum homogeneous blend.

[0023] 为保证弹壳3和压裂药盒8之间的密封效果,在弹壳3的环形凸台的外侧表面上开有环形凹槽,环形凹槽中设置有密封圈6。 [0023] In order to ensure fracturing cartridge shell 3 and the sealing effect between 8, on the outer surface of the shell 3 of annular projection has an annular groove open, annular groove 6 is provided with a sealing ring. 在本实施方式中,密封圈6由氟橡胶制成。 In the present embodiment, the sealing ring 6 is made of fluoro rubber.

[0024] 无枪身射孔弹通过弹壳3和压裂药盒8安装在无枪身射孔器弹架2的安装孔上。 [0024] No Barrel perforating bullet casings 3 through 8 and fracturing kit installed on the body - free perforator bomb rack mounting hole 2.

[0025] 本发明无枪身同轴随进式射孔器的工作过程为:首先,将导爆索放置在起爆半圆槽内,并通过压丝1将导爆索固定;引爆导爆索,导爆索起爆并击穿弹壳3上位于起爆半圆槽和传爆孔之间的前端壁,高能炸药4起爆并使药型罩5形成高速射流,该高速射流穿透套管、水泥环后,进入地层并形成孔道;在高能炸药4起爆的瞬间,专用压裂药7起爆并形成压 [0025] The present invention is coaxial with the working process of body - free perforator into the formula as follows: First, the detonating cord placed in a semicircle detonating tank and push the wire through the detonating cord 1 is fixed; detonate detonating cord, the detonating cord and detonator 3 at the front wall of the shell breakdown detonating tank and booster semicircle between the holes, high explosive detonation and 4 Liner 5 form the high-speed jet, the high-speed jet penetration sleeve, after the cement ring, into the formation and the formation of pores; 4 high explosive detonation in an instant, and dedicated fracture initiation and the formation pressure medicine 7

[0012] 1-压丝; [0012] 1- pressure wire;

[0013] 4-高能炸药; [0013] 4- high explosives;

[0014] 7-专用压裂药; [0014] 7 dedicated fracturing agents;

2-无枪身射孔器弹架; 5-药型罩; 8-压裂药盒; 2- body - free perforator bomb racks; 5- Liner; 8- fracturing kit;

3-弹壳; 6-密封圈; 9-射流通道。 3- shells; 6- ring; 9- jet channel. 裂体,继而压裂体顺着射孔形成的孔道同轴随进进入地层进行爆燃压裂。 Bilharzia, then fracturing body along the perforation tunnel formed coaxial with the inlet into the strata deflagration fracturing. [0026] 以上所述,仅是本发明的较佳实施例,并非对本发明作任何限制,凡是根据本发明技术实质对以上实施例所作的任何简单修改、变更以及等效结构变换,均仍属于本发明技术方案的保护范围内。 [0026] described above, only the preferred embodiment of the present invention, the present invention is not any limitation, any modification technique based on any simple substance of the above embodiments of the present invention made an example of, changes, and equivalent structural transformations would fall the scope of the present invention within the technical program.

Citations de brevets
Brevet cité Date de dépôt Date de publication Déposant Titre
CN1129276A14 févr. 199521 août 1996史慧生Perforation and fracturing device for oil well
CN62188649Y Titre non disponible
CN201358768Y4 mars 20099 déc. 2009西安瑞通能源科技有限公司Retrievable coaxial simultaneous entry type enhanced perforator
US514886812 août 199122 sept. 1992Christian J BMethod and apparatus for perforating tubing
Classifications
Classification internationaleE21B43/11
Événements juridiques
DateCodeÉvénementDescription
28 oct. 2009C06Publication
23 déc. 2009C10Request of examination as to substance
25 avr. 2012C14Granted