WO2020098307A1 - 一种用于射孔段密封的轴向压缩组件 - Google Patents

一种用于射孔段密封的轴向压缩组件 Download PDF

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WO2020098307A1
WO2020098307A1 PCT/CN2019/097837 CN2019097837W WO2020098307A1 WO 2020098307 A1 WO2020098307 A1 WO 2020098307A1 CN 2019097837 W CN2019097837 W CN 2019097837W WO 2020098307 A1 WO2020098307 A1 WO 2020098307A1
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axial compression
compression assembly
elastic sealing
ring
fluid
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PCT/CN2019/097837
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French (fr)
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屈波
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屈波
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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/25—Methods for stimulating production
    • E21B43/26—Methods for stimulating production by forming crevices or fractures
    • E21B43/263—Methods for stimulating production by forming crevices or fractures using explosives

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  • the invention belongs to the technical field of oil and gas field completion, and in particular relates to an axial compression component used for sealing a perforating section.
  • the current technology is to seal the wellbore in sections by sealing the bridge plug, and then press the liquid explosive into the formation, but between the bridge plugs
  • the wellbore is fully filled with liquid explosives. After initiation, the large amount of liquid explosives remaining in the wellbore will cause serious damage to the wellbore, making it difficult to achieve safe and explosive fracturing in the reservoir using liquid explosives.
  • a simple and reliable construction device which can achieve high-pressure injection of fluids (liquid explosives or other chemical fluids) into the formation while keeping the fluid as little as possible.
  • fluids liquid explosives or other chemical fluids
  • the damage to the wellbore caused by the fluid during and after the construction process is reduced, and the safe high-pressure injection of the fluid into the target formation can be achieved while reducing as much as possible. Too much fluid remains in the wellbore, causing damage to the wellbore during and after construction.
  • the main purpose of the present invention is to provide an axial compression assembly for perforating segment sealing.
  • An embodiment of the present invention provides an axial compression assembly for sealing a perforation section of an oil and gas well.
  • the axial compression assembly is disposed on both sides of an elastic sealing unit of the perforation section;
  • the axial compression assembly includes a first annular piston, A second annular piston, both the first annular piston and the second annular piston are sleeved on the hollow steel column of the downhole working tool.
  • the perforated segment elastic sealing unit includes a first elastic sealing ring, a supporting sleeve, and a second elastic sealing ring; the first elastic sealing ring, the supporting sleeve, and the second elastic sealing ring are from left to right Sequentially sleeved outside the hollow steel column.
  • an intermediate joint is provided on the left side of the first annular piston, and a guide head is provided on the right side of the second annular piston.
  • a first gap for the inflow of pressure fluid is provided between the first ring piston and the intermediate joint, and a second gap for the inflow of pressure fluid is provided between the second ring piston and the head.
  • the support sleeve and the hollow steel column are matched with liquid explosive injection channels.
  • the invention can quickly and safely achieve the sealing of downhole perforation section and fluid injection, and can make the fluid (liquid explosive or other chemical fluid) be injected into the formation under high pressure, so that the fluid can be kept as little as possible Within the wellbore, by controlling the amount of fluid remaining in the wellbore, the damage to the wellbore caused by the fluid during and after the construction process is reduced, and the safe high-pressure injection of the fluid into the target formation can be achieved while the More fluid remains in the wellbore, causing damage to the wellbore during and after construction.
  • the fluid liquid explosive or other chemical fluid
  • FIG. 1 is a schematic structural diagram of an axial compression assembly for perforating segment sealing provided by an embodiment of the present invention
  • FIG. 2 is a schematic structural view of another embodiment of an axial compression assembly for sealing a perforation section provided by an embodiment of the present invention
  • FIG. 3 is a schematic structural view of an embodiment of the present invention after providing an axial compression assembly for sealing a perforation section to a high-pressure-resistant seal at both ends of the perforation section;
  • An embodiment of the present invention provides an axial compression assembly for perforating segment sealing.
  • the axial compression assembly includes a first annular piston 1, a second annular piston 2, and the first annular piston 1.
  • the second annular piston 2 is sleeved on the hollow steel column 4 and is respectively arranged on both sides of the perforated section elastic sealing unit 3.
  • the first annular piston 1 and the second annular piston 2 oppose the perforated section elastic sealing unit
  • the axial compression of 3 makes the perforated section elastic sealing unit 3 seal the perforated section.
  • the hollow steel column 4 may also be a cylindrical body or other components according to different downhole working tools.
  • a part of the fluid pushes the first ring piston 1 to move to the right, and another part of the fluid pushes the second ring piston 2 to the left.
  • the first ring piston 1 and the second ring piston 2 respectively face the two elastic sealing units 3 of the perforation section Apply pressure in the direction to seal the perforated section.
  • the perforated segment elastic sealing unit 3 includes a first elastic sealing ring 31, a supporting sleeve 32, and a second elastic sealing ring 33; the first elastic sealing ring 31, the supporting sleeve 32, and the second elastic sealing ring 33 are from From left to right, the hollow steel column 1 is sleeved in sequence.
  • the first annular piston 1 applies right pressure to the first elastic seal ring 61
  • the second annular piston 2 applies left pressure to the second elastic seal ring 63, because the support sleeve 62 is located at the first elastic seal ring 61 And the second elastic sealing ring 63, so that the first elastic sealing ring 61 and the second elastic sealing ring 63 generate axial compression and radial expansion after being compressed, and finally, seal the perforation section.
  • the support sleeve 32 and the hollow steel column 4 are matched with a liquid explosive injection channel. After the perforation section is sealed, the liquid explosive in the hollow steel column 4 is injected into the oil and gas storage through the liquid explosive injection channel and the perforation hole Floor.
  • an intermediate joint 5 is provided on the left side of the first annular piston 1, and a guide head 6 is provided on the right side of the second annular piston 2; the first annular piston 1 and the intermediate joint A first gap 11 for driving the inflow of pressure fluid of the first annular piston 1 is provided between 5, and a pressure fluid for driving the inflow of pressure fluid of the second annular piston 2 is provided between the second annular piston 2 and the leading head 6 Second gap 21.
  • a part of the pressure fluid flows in through the first gap 11 and pushes the first annular piston 1 to move to the right, another part of the pressure fluid flows in through the second gap 21 and pushes the second ring piston 2 to the left, the first ring piston 1 and the first
  • the two annular pistons 2 respectively apply pressure to the perforation section elastic sealing unit 3 in two directions to achieve sealing of the perforation section.
  • the present invention is placed in a wellbore casing 7 with a downhole working tool.
  • the wellbore casing 7 has several perforation holes in the perforation section.
  • the present invention is to close several perforation holes in a sealed pressure-resistant section.
  • a part of the pressure fluid flows in through the first gap 11 and pushes the first annular piston 1 to the right, transmitting pressure to the first elastic sealing ring 31, while another part of the pressure fluid also flows in through the second gap 21 and pushes the second annular piston 2 Move to the left to transmit pressure to the second elastic seal ring 33; since the support sleeve 32 is located between the first elastic seal ring 31 and the second elastic seal ring 33, under the continuous action of the driving pressure F, the first The axial widths of the elastic sealing ring 31 and the second elastic sealing ring 33 become smaller, so that the first elastic sealing ring 31 and the second elastic sealing ring 33 expand radially until they are tightly pressed to the inner wall of the wellbore casing 7 , To achieve high-pressure sealing of the two ends of the perforation section, as shown in Figure 3;

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)

Abstract

一种用于油气井射孔段密封的轴向压缩组件被公开。该轴向压缩组件设置在射孔段弹性密封单元的两侧；轴向压缩组件包括第一环形活塞（1）、第二环形活塞（2），第一环形活塞（1）、第二环形活塞（2）均套设在井下作业工具的空心钢柱（4）上。该组件能够快速安全地实现井下的射孔段密封和流体注入，能够在流体高压注入地层的同时，使得该流体尽可能少的存留在井筒之内，通过控制流体存留在井筒之内的数量，降低流体在施工过程中以及施工后对井筒造成的损害程度。

Description

一种用于射孔段密封的轴向压缩组件 技术领域
本发明属于油气田完井技术领域，具体涉及一种用于射孔段密封的轴向压缩组件。
背景技术
目前，在油气储层改造和修井施工作业中，比如将液体炸药注入地层，目前的技术是通过座封桥塞将井筒分段座封后，将液体炸药压入地层，但是桥塞之间的井筒内全部充满液体炸药，那么起爆后，井筒存留的大量液体炸药会对井筒造成严重毁伤，使利用液体炸药在储层内爆炸压裂难以安全的实现。
因此，在油气储层改造和修井施工作业中，均需要一种简单可靠的施工装置，能够实现在流体(液体炸药或其他化学流体)高压注入地层的同时，使得该流体尽可能少的存留在井筒之内，通过控制流体存留在井筒之内的数量，降低流体在施工过程中以及施工后对井筒造成的损害，实现既达到将流体能够安全的高压注入到目标地层，又尽可能减少由于过多的流体留在井筒内，造成在施工过程中和施工后对井筒造成的损害程度。
发明内容
有鉴于此，本发明的主要目的在于提供一种用于射孔段密封的轴向压缩组件。
为达到上述目的，本发明的技术方案是这样实现的：
本发明实施例提供一种用于油气井射孔段密封的轴向压缩组件，该轴向压缩组件设置在射孔段弹性密封单元的两侧；所述轴向压缩组件包括第一环形活塞、第二环形活塞，所述第一环形活塞、第二环形活塞均套设在井下作业工具的空心钢柱上。
上述方案中，所述射孔段弹性密封单元包括第一弹性密封圈、支撑套筒、 第二弹性密封圈；所述第一弹性密封圈、支撑套筒、第二弹性密封圈从左到右依次套设在空心钢柱外。
上述方案中，所述第一环形活塞的左侧设置中间接头，所述第二环形活塞的右侧设置引向头。
上述方案中，所述第一环形活塞与中间接头之间设置有用于压力液流入的第一间隙，所述第二环形活塞与引向头之间设置有用于压力液流入的第二间隙。
上述方案中，所述支撑套筒和空心钢柱上匹配设置有液体炸药注入孔道。
与现有技术相比，本发明能够快速安全地实现井下的射孔段密封和流体注入，能够在流体(液体炸药或其他化学流体)高压注入地层的同时，使得该流体尽可能少的存留在井筒之内，通过控制流体存留在井筒之内的数量，降低流体在施工过程中以及施工后对井筒造成的损害，实现既达到将流体能够安全的高压注入到目标地层，又尽可能减少由于过多的流体留在井筒内，造成在施工过程中和施工后对井筒造成的损害程度。
附图说明
图1为本发明实施例提供一种用于射孔段密封的轴向压缩组件的结构示意图；
图2为本发明实施例提供一种用于射孔段密封的轴向压缩组件的另一种结构示意图；
图3为本发明实施例提供一种用于射孔段密封的轴向压缩组件对射孔段两端的耐高压密封后的结构示意图；
其中：1-第一环形活塞、2-第二环形活塞、11-第一间隙、21-第二间隙、3-射孔段弹性密封单元、31-第一弹性密封圈、32-支撑套筒、321-第二液体炸药注入孔道、33-第二弹性密封圈、4-空心钢柱、5-中间接头、6-引向头、7-井筒套管。
具体实施方式
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅 仅用以解释本发明，并不用于限定本发明。
需要理解的是，本发明的以下实施方式中所提及的“左”、“右”均以各图所示的方向为基准，这些用来限制方向的词语仅仅是为了便于说明，并不代表对本发明具体技术方案的限制。
本发明实施例提供一种用于射孔段密封的轴向压缩组件，如图1所示，所述轴向压缩组件包括第一环形活塞1、第二环形活塞2，所述第一环形活塞1、第二环形活塞2均套设在空心钢柱4上并且分别设置在射孔段弹性密封单元3的两侧，通过第一环形活塞1、第二环形活塞2对射孔段弹性密封单元3的轴向挤压使得射孔段弹性密封单元3实现对射孔段的密封。
当然，根据井下作业工具的不同，所述空心钢柱4也可以是筒体等部件。
一部分流体推动第一环形活塞1向右移动，另一部分流体推动第二环形活塞2向左移动，所述第一环形活塞1和第二环形活塞2分别对射孔段弹性密封单元3的两个方向施加压力使其实现对射孔段的密封。
所述射孔段弹性密封单元3包括第一弹性密封圈31、支撑套筒32、第二弹性密封圈33；所述第一弹性密封圈31、支撑套筒32、第二弹性密封圈33从左到右依次套设在空心钢柱1外。
所述第一环形活塞1对第一弹性密封圈61施加向右的压力，第二环形活塞2对第二弹性密封圈63施加向左的压力，由于支撑套筒62位于第一弹性密封圈61和第二弹性密封圈63中间，所以所述第一弹性密封圈61和第二弹性密封圈63受到压力后产生轴向压缩和径向膨胀，最终，实现对射孔段的密封。
所述支撑套筒32和空心钢柱4上匹配设置有液体炸药注入孔道，在射孔段密封后，所述空心钢柱4内的液体炸药通过液体炸药注入孔道和射孔孔眼注入到油气储层。
进一步地，如图2所示，所述第一环形活塞1的左侧设置中间接头5，所述第二环形活塞2的右侧设置引向头6；所述第一环形活塞1与中间接头5之间设置有用于驱动第一环形活塞1的压力液流入的第一间隙11，所述第二环形活塞2与引向头6之间设置有用于驱动第二环形活塞2的压力液流入的第二间 隙21。
一部分压力液通过第一间隙11流入并且推动第一环形活塞1向右移动，另一部分压力液通过第二间隙21流入并且推动第二环形活塞2向左移动，所述第一环形活塞1和第二环形活塞2分别对射孔段弹性密封单元3的两个方向施加压力使其实现对射孔段的密封。
本发明的工作过程：
本发明配合井下作业工具放置在井筒套管7内，所述井筒套管7在射孔段有若干个射孔孔眼，本发明就是将若干个射孔孔眼封闭在一个密封耐压区间内。
一部分压力液通过第一间隙11流入并且推动第一环形活塞1向右移动，将压力传递给第一弹性密封圈31，同时另一部分压力液还通过第二间隙21流入，并且推动第二环形活塞2向左移动，将压力传递给第二弹性密封圈33；由于支撑套筒32位于第一弹性密封圈31和第二弹性密封圈33中间，在驱动压力F的持续作用下，所述第一弹性密封圈31和第二弹性密封圈33的轴向宽度变小，从而，所述第一弹性密封圈31和第二弹性密封圈33向径向膨胀，直到紧密挤压到井筒套管7内壁，实现对射孔段两端的耐高压密封，如图3所示；
而且当第一弹性密封圈31和第二弹性密封圈33的轴向压缩变形达到设计要求的变形量时，也即保证了达到设计要求的密封耐压水平，也就是射孔段密封的完成，这样，可以进入液体炸药注入等后续工序。
以上所述，仅为本发明的较佳实施例而已，并非用于限定本发明的保护范围。

Claims (5)

  1. 一种用于油气井射孔段密封的轴向压缩组件，其特征在于，该轴向压缩组件设置在射孔段弹性密封单元的两侧；所述轴向压缩组件包括第一环形活塞、第二环形活塞，所述第一环形活塞、第二环形活塞均套设在井下作业工具的空心钢柱上。
  2. 根据权利要求1所述的一种用于射孔段密封的轴向压缩组件，其特征在于，所述射孔段弹性密封单元包括第一弹性密封圈、支撑套筒、第二弹性密封圈；所述第一弹性密封圈、支撑套筒、第二弹性密封圈从左到右依次套设在空心钢柱外。
  3. 根据权利要求1或2所述的一种用于射孔段密封的轴向压缩组件，其特征在于，所述第一环形活塞的左侧设置中间接头，所述第二环形活塞的右侧设置引向头。
  4. 根据权利要求3所述的一种用于射孔段密封的轴向压缩组件，其特征在于，所述第一环形活塞与中间接头之间设置有用于压力液流入的第一间隙，所述第二环形活塞与引向头之间设置有用于压力液流入的第二间隙。
  5. 根据权利要求4所述的一种用于射孔段密封的轴向压缩组件，其特征在于，所述支撑套筒和空心钢柱上匹配设置有液体炸药注入孔道。
PCT/CN2019/097837 2018-11-16 2019-07-26 一种用于射孔段密封的轴向压缩组件 WO2020098307A1 (zh)

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109138957A (zh) * 2018-07-17 2019-01-04 吴继先 用于油气储层爆炸压裂的液体炸药注入和引爆装置
CN109339761A (zh) * 2018-11-16 2019-02-15 吴继先 用于油气储层的流体注入和引爆装置
CN110259889B (zh) * 2019-05-31 2023-09-12 西安交通大学 摆渡机构、聚能棒推送器以及冲击波发生器
CN110306966A (zh) * 2019-07-22 2019-10-08 屈波 用于油气套管井的液体炸药注入和层内爆炸压裂装置

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103277079A (zh) * 2013-06-04 2013-09-04 中国海洋石油总公司 一种水平井压裂完井的管柱及其压裂施工方法
CN104847301A (zh) * 2015-04-28 2015-08-19 中国石油天然气股份有限公司 裸眼封隔器
CN105696994A (zh) * 2016-01-20 2016-06-22 中国石油化工股份有限公司 用于多向压力控制式喷封压的装置以及包含其的管柱
US20170268320A1 (en) * 2012-04-27 2017-09-21 Kobold Corporation Methods and electrically-actuated apparatus for wellbore operations
WO2018004849A1 (en) * 2016-06-29 2018-01-04 Comitt Well Solutions Us Holding Inc. Methods and systems for stimulating and restimulating a well
CN109339761A (zh) * 2018-11-16 2019-02-15 吴继先 用于油气储层的流体注入和引爆装置
CN109681204A (zh) * 2019-02-02 2019-04-26 屈波 用于油气储层的流体注入和引爆装置
CN209308670U (zh) * 2018-11-16 2019-08-27 屈波 一种用于油气储层的流体注入和引爆装置

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1286646A (en) * 1969-11-26 1972-08-23 Talley Industries Well fracturing method using an explosive slurry
US4509604A (en) * 1982-04-16 1985-04-09 Schlumberger Technology Corporation Pressure responsive perforating and testing system
US5046567A (en) * 1989-11-13 1991-09-10 Mecano-Tech, Inc. Adiabatically induced ignition of combustible materials
US6598682B2 (en) * 2000-03-02 2003-07-29 Schlumberger Technology Corp. Reservoir communication with a wellbore
CN100545416C (zh) * 2006-12-06 2009-09-30 西安通源石油科技股份有限公司 投放式高能气体压裂器
US8726996B2 (en) * 2009-06-02 2014-05-20 Schlumberger Technology Corporation Device for the focus and control of dynamic underbalance or dynamic overbalance in a wellbore
CN101598522B (zh) * 2009-07-07 2012-07-04 西南石油大学 一种水力裂缝内爆燃压裂液体炸药输送引爆装置及应用
CN102052066B (zh) * 2009-11-11 2014-03-19 西安通源石油科技股份有限公司 用于提高复合射孔压裂效果的动态封压方法及其装置
CN201531256U (zh) * 2009-11-11 2010-07-21 西安通源石油科技股份有限公司 用于提高复合射孔压裂效果的动态封压装置
US8381807B2 (en) * 2009-12-14 2013-02-26 Summit Downhole Dynamics, Ltd. Hydraulically-actuated propellant stimulation downhole tool
RU2456443C1 (ru) * 2010-10-28 2012-07-20 Государственное образовательное учреждение высшего профессионального образования "Российский химико-технологический университет им. Д.И. Менделеева" (РХТУ им. Д.И. Менделеева) Газогенератор для нефтяных и газовых скважин
GB201100975D0 (en) * 2011-01-20 2011-03-09 Lee Paul B Downhole tools
CN202300348U (zh) * 2011-11-04 2012-07-04 中国航天科技集团公司川南机械厂 投球压力开孔起爆装置
CN102536177B (zh) * 2012-03-21 2013-11-13 甘肃兰金民用爆炸高新技术公司 正压燃爆装置
CN202531131U (zh) * 2012-03-21 2012-11-14 甘肃省化工研究院 正压燃爆装置
CN103147725A (zh) * 2013-02-28 2013-06-12 西安物华巨能爆破器材有限责任公司 一种用于油气井射孔作业的压差起爆装置
CN103225498B (zh) * 2013-04-19 2015-11-18 中国石油天然气股份有限公司 多级复合深穿透射孔装置
CA2842586A1 (en) * 2014-02-11 2015-08-11 Iron Horse Coiled Tubing Inc. A combined perforating and fracking tool
GB201417557D0 (en) * 2014-10-03 2014-11-19 Meta Downhole Ltd Improvements in or relating to morphing tubulars
CN104612624B (zh) * 2015-01-06 2018-02-27 陈爱民 可降解桥塞、定时滑套、分段压裂管柱及地层分段压裂方法
CN106437666A (zh) * 2016-11-18 2017-02-22 西南石油大学 一种用于油气储层内爆炸压裂专用炸药的引爆新技术
CN107558982A (zh) * 2017-10-25 2018-01-09 北京化工大学 一种适用于页岩气蒸汽压裂方法的可控闪爆压裂套管
CN109138957A (zh) * 2018-07-17 2019-01-04 吴继先 用于油气储层爆炸压裂的液体炸药注入和引爆装置
CN209586368U (zh) * 2019-02-02 2019-11-05 屈波 一种用于油气储层的流体注入和引爆装置

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170268320A1 (en) * 2012-04-27 2017-09-21 Kobold Corporation Methods and electrically-actuated apparatus for wellbore operations
CN103277079A (zh) * 2013-06-04 2013-09-04 中国海洋石油总公司 一种水平井压裂完井的管柱及其压裂施工方法
CN104847301A (zh) * 2015-04-28 2015-08-19 中国石油天然气股份有限公司 裸眼封隔器
CN105696994A (zh) * 2016-01-20 2016-06-22 中国石油化工股份有限公司 用于多向压力控制式喷封压的装置以及包含其的管柱
WO2018004849A1 (en) * 2016-06-29 2018-01-04 Comitt Well Solutions Us Holding Inc. Methods and systems for stimulating and restimulating a well
CN109339761A (zh) * 2018-11-16 2019-02-15 吴继先 用于油气储层的流体注入和引爆装置
CN209308670U (zh) * 2018-11-16 2019-08-27 屈波 一种用于油气储层的流体注入和引爆装置
CN109681204A (zh) * 2019-02-02 2019-04-26 屈波 用于油气储层的流体注入和引爆装置

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