CN104295228B - Pressure reciprocating impact drilling and method - Google Patents

Pressure reciprocating impact drilling and method Download PDF

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Publication number
CN104295228B
CN104295228B CN 201310298385 CN201310298385A CN104295228B CN 104295228 B CN104295228 B CN 104295228B CN 201310298385 CN201310298385 CN 201310298385 CN 201310298385 A CN201310298385 A CN 201310298385A CN 104295228 B CN104295228 B CN 104295228B
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hole
body
cavity
drilling
vibrating body
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CN 201310298385
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CN104295228A (en )
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张明昌
吴晋霞
吴姬昊
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中国石油化工股份有限公司
中国石油化工股份有限公司石油工程技术研究院
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Abstract

本发明提出了一种压差往复式钻井冲击器,包括:筒状本体;位于本体内并与其相连的筒状隔离单元;固定在所述隔离单元上的用于产生节流压差的调压机构;振动体;其中,当振动体处于第一位置时,振动体挡住第一通孔而切断了第一腔体和第二腔体之间的流体互通,当振动体运动到处于第一位置的下游的第二位置时,第一通孔露出,使得来自第一腔体的一部分流体能够经第一通孔、第二腔体以及第二通孔进入到下部区域,本发明还提出了一种钻井方法,属于石油钻井领域。 The present invention provides a pressure impactor reciprocating drilling, comprising: a cylindrical body; located within the body and connected thereto a cylindrical spacer unit; isolation unit fixed to the throttle for generating a pressure difference regulator mechanism; vibrating body; wherein, when the vibration body in the first position, the first vibrator through hole blocking off fluid communication between the first cavity and the second cavity, when the vibrating body is moved to the first position in a second position downstream of the first through hole is exposed, such that fluid from the first chamber portion to the lower region can enter through the first through hole, the second cavity and a second through-hole, the present invention also provides a A method of drilling species, belonging to the field of oil drilling. 根据本发明的钻井冲击器低耗能,单纯通过机械设计的原理利用流体的液力;同时装配简单、制造成本低廉;机械构造设计简洁。 The drilling impactor present invention can be low cost, use of hydraulic fluid through a simple mechanical design principles; while simple to assemble, inexpensive to manufacture; simple mechanical construction design.

Description

压差往复式钻井冲击器及方法 Pressure reciprocating impact drilling and method

技术领域 FIELD

[0001]本发明涉及一种用于钻井作业的冲击器及方法,特别涉及一种压差往复式钻井冲击器及方法,属于石油钻井领域。 [0001] The present invention relates to an impact device and a method for drilling operations, and more particularly to a method of pressure impactor reciprocating drilling, oil drilling field belongs.

背景技术 Background technique

[0002]在地质探矿工程及石油钻井行业中,随着油气勘探开发的发展及钻井深度的增加,钻井过程中遇到的硬地层越来越多,泥岩、砂岩、火成岩等地层硬度高、研磨性强并且可钻性差,导致钻头磨损严重、起下钻频繁、钻井时效低等问题。 [0002] In geological prospecting works and oil drilling industries, with the increase in exploration and development of oil and gas development and drilling depth, hard formation drilling encountered more and more high-mudstone, sandstone, igneous rock formations such as hardness, grinding strong and drillability poor, resulting in serious bit wear, tripping frequently, drilling and low aging problem.

[0003]冲击器作为旋冲钻井的关键工具可有效解决上述冋题,提尚钻井效率。 [0003] impact as a key tool for rotary percussion drilling can solve these problems Jiong, mention still drilling efficiency. 目如,相关人员对冲击器进行了大量的研究,液动冲击器优势尤为突出,但其结构复杂、元件繁多,不利于安装,同时它的关键零部件耐磨性差,因而寿命较短。 Such as mesh, impactor personnel a lot of research, hydraulic impactor advantage is particularly prominent, but the complexity of its structure, many components, is not conducive to installation, while its key components poor wear resistance, and therefore short-lived.

发明内容 SUMMARY

[0004]本发明的目的在于提出一种简易的压差往复式钻井冲击器,其结构简单、零部件少,因此安装方便且性能稳定;同时它启动容易、工作栗压低、性能调节比较方便,这极大地降低了试验成本;整个冲击器简便、安全、可靠,大大提高了钻井时效。 [0004] The object of the present invention is to propose a simple differential pressure reciprocating impact drilling, a simple structure, fewer parts, thus facilitating installation and stability; and it is easy to start working Li down, the performance moderator more convenient, this greatly reduces the cost of test; the entire impactor simple, safe, reliable, greatly improving the timeliness of drilling.

[0005]本发明提出了一种压差往复式钻井冲击器,包括:筒状本体,其两端分别与钻头与钻具相连接;位于本体内并与其相连的筒状隔离单元,所述隔离单元将本体内的空间分为处于径向内侧的第一腔体和处于径向外侧的第二腔体,隔离单元上设有第一通孔和相对于第一通孔处于下游的第二通孔;固定在所述隔离单元上的用于产生节流压差的调压机构,其中第二腔体通过第二通孔连通至第一腔体的处于调压机构下方的下部区域;振动体,该振动体通过弹性件与隔离单元相连,使得振动体的冲击力能够通过隔离单元和本体传递至钻头;其中,当振动体处于第一位置时,振动体挡住第一通孔而切断了第一腔体和第二腔体之间的流体互通,当振动体运动到处于第一位置的下游的第二位置时,第一通孔露出,使得来自第一腔体的一部分流体能够经第一通孔、第二腔 [0005] The present invention provides a pressure impactor reciprocating drilling, comprising: a cylindrical body having both ends respectively connected to the drill bit; a body connected thereto, and a tubular spacer means, said spacer means the space into a first body cavity in a radially inward and radially outward in the second cavity, a first through hole and a through-hole with respect to the first through the downstream second isolation unit a lower region located below the pressure regulating means is fixed to the isolation unit for generating a throttle pressure regulating means, wherein the communication with the second cavity to the first cavity through the second through-hole;; hole vibrator the vibrator is connected via an elastic member and isolation means such that impact forces can be transmitted to the vibrating body through the isolation unit and the drill bit body; wherein, when the vibration body in the first position, the first vibrator block off the first through hole a fluid communication between the cavity and the second cavity, when the vibrating body is moved to a second position downstream of the first position, the first through hole is exposed, such that fluid from the first chamber through the first portion can be the through hole, the second chamber 体以及第二通孔进入到下部区域。 And a second through-hole member into the lower region.

[0006]在一个实施例中,隔离单元包括隔离筒和筒状调压座,调压座流体密封式连接于隔离筒下方,调压机构为流体密封式连接于该调压座之内的筒状调压阀。 [0006] In one embodiment, the spacer comprises a spacer unit and a tubular cylindrical housing regulator, the regulator seat fluid-tight connection beneath the spacer tube, the fluid pressure regulating means is sealingly connected inside the regulator housing of the cylinder like pressure regulating valve.

[0007]在一个实施例中,调压阀的上端顶靠调压座的径向向内凸出的部分。 [0007] In one embodiment, the upper end of the pressure regulating valve regulator seat top radially inwardly projecting portion.

[0008]在一个实施例中,第二通孔位于隔离单元的调压座上。 [0008] In one embodiment, the second through hole is located regulator seat isolation unit.

[0009]在一个实施例中,当振动体处于第二位置时,振动体与调压座相互接触以传递冲击力O [0009] In one embodiment, when the vibrating body is in a second position, the vibrating body and the regulator seat contact each other to transmit an impact force O

[0010]在一个实施例中,弹性件为纵向设置的弹簧,弹簧下部连接于隔离单元的径向向内凸出的部分,上部连接于振动体的径向向外凸出的部分。 [0010] In one embodiment, the resilient member is a spring disposed longitudinal, radial isolation unit is connected to the lower spring inwardly projecting portion, the upper portion connected to the vibrating body radially outwardly projecting portion.

[0011 ]在一个实施例中,隔离单元上部设置有环状的压环,该压环相邻地连接于本体的轴向内侧,压环能够限制振动体的向上行程。 [0011] In one embodiment, the isolation unit is provided with an upper annular pressure ring, which pressure ring axially adjacent to the inner side connected to the body, the pressure ring can be restricted to the upward stroke of the vibrating body.

[0012]在一个实施例中,振动体为径向截面为T形的中空活塞。 [0012] In one embodiment, the vibrating body is T-shaped radial section of the hollow piston.

[0013]在一个实施例中,本体在上端部和下端部处具有用于连接到钻头和钻具的螺纹结构。 [0013] In one embodiment, the upper and lower body portion having a thread formation for connection to the drill bit and drill string.

[0014]本发明还提出了一种通过该压差往复式钻井冲击器来进行钻井冲击的方法,至少包括: [0014] The present invention also provides a method of drilling a reciprocating impact by the impact of the pressure differential drilling, comprising at least:

[0015] 步骤1:通过调压机构产生节流压差; [0015] Step 1: throttle pressure generated by the pressure regulation mechanism;

[0016]步骤2:通过所述压差使振动体从第一位置向第二位置运动,当振动体处于第一位置时,振动体挡住第一通孔而切断了第一腔体和第二腔体之间的流体互通,当振动体运动到处于第一位置的下游的第二位置时,第一通孔露出,使得来自第一腔体的一部分流体能够经第一通孔、第二腔体以及第二通孔进入到下部区域,节流压差得到缓解; [0016] Step 2: the vibrating body by the pressure from the first position to the second position, when the vibrating body is in a first position, a first vibrator block off the through hole of the first cavity and the second fluid communication between the cavity when the vibrating body is moved to a second position downstream of the first position, the first through hole is exposed, such that fluid from the first chamber through the first part can be through-hole, the second chamber and a second through-hole member into the lower region, the throttle pressure eased;

[0017]步骤3:振动体在冲击力的反作用力和弹性件的弹力的作用下上升,之后恢复至第一位置,再次堵住第一通孔。 [0017] Step 3: the vibrating body and a reaction force increase in the spring force of the impact force of the elastic member, was returned to the first position, the first through hole block again.

[0018]根据本发明的压差往复式钻井冲击器,通过弹性部件、振动体和第一通孔的相互配合实现了通断流体的功能,再结合第二通孔,有效利用流体的通断不断造成压差和缓解压差,反过来利用压差影响振动体和弹性件的运动,使其不断对钻头造成冲击。 [0018] The present invention is a reciprocating drilling pressure impactor, by the elastic member, the vibrator and the cooperating first through hole through the cutout realizes the functions of the body, combined with a second through hole, the effective use of the fluid-off in accordance with continue to cause pressure and ease the pressure, in turn, use of pressure to affect the movement of the vibrating body and the elastic member so that it continues to impact on the drill bit. 同时根据所需压差的不同仅需更换调压机构,使得现场操作灵活性大。 Depending on the desired pressure while just replace the pressure regulating mechanism, so that large flexibility in field operations.

[0019]根据本发明的冲击器低耗能,单纯通过机械设计的原理利用流体的液力;同时装配简单、制造成本低廉;机械构造设计简洁。 [0019] energy, simply using hydraulic fluid according to the present invention, the impactor through the principle of low cost mechanical design; while the assembly is simple, inexpensive to manufacture; simple mechanical construction design.

[0020]上述技术特征可以各种技术上可行的方式组合以产生新的实施方案,只要能够实现本发明的目的。 [0020] The techniques of various features may be technically feasible combination to generate a new embodiment, as long as the object of the present invention can be achieved.

附图说明 BRIEF DESCRIPTION

[0021]在下文中将基于仅为非限定性的实施例并参考附图来对本发明进行更详细的描述。 [0021] The present invention will be described in more detail based on embodiments merely non-limiting embodiments and with reference to the drawings hereinafter. 其中: among them:

[0022]图1示意性显示了根据本发明的压差往复式钻井冲击器10。 [0022] FIG. 1 shows schematically a reciprocating impact drill according to the present invention, the pressure differential 10.

[0023]在图中,相同的构件由相同的附图标记标示。 [0023] In the drawings, like elements being designated by the same reference numerals. 附图并未按照实际的比例绘制。 The drawings are not drawn to actual scale.

具体实施方式 detailed description

[0024]下面将参照附图来详细地介绍本发明。 [0024] The following drawings will be described in detail with reference to the present invention.

[0025]图1显示了根据本发明的压差往复式钻井冲击器10,其可以置于钻头与钻具之间来对钻头造成冲击。 [0025] FIG. 1 shows a reciprocating pressure drilling invention impactor 10, which may be disposed between the impact on the drill bit and the drill bit.

[0026] 钻井冲击器10包括位于外侧的筒状本体I,本体I用于将钻井冲击器10固定到钻柱中并对钻井冲击器10的其余部件起到支撑和保护作用。 [0026] The impactor 10 comprises a drilling located outside of the cylindrical body I, I for the body 10 is fixed to the impactor drilling the drill string and drilling the remaining components of the impactor 10 functions as a support and protection. 在一个实施例中,本体I两端分别与钻头与钻具相连接,为此目的,其在上端部和下端部处具有用于连接到钻头和钻具的螺纹结构。 In one embodiment, the ends of the body I are connected to the drill bit and, for this purpose, which has a threaded structure for connection to the drill bit and drill in the upper and lower portions. 这样不仅有利于连接,同时可以实现钻井冲击器10的轴向定位。 This will not only facilitate connection can be achieved while the drilling 10 of the axial positioning of the impactor.

[0027]钻井冲击器10还包括位于本体I内并与其相连的筒状隔离单元,该隔离单元的作用是将本体I内的空间分为处于径向内侧的第一腔体11和处于径向外侧的第二腔体12。 [0027] impact drilling 10 further includes a tubular spacer means located within the body and connected thereto I, the role of the isolation unit is positioned within the body space into a first chamber I is the radially inner 11 and radially in the second chamber 12 outside of the body. 隔离单元上设有第一通孔4和相对于第一通孔4处于下游的第二通孔9。 The first through-holes 4 and 4 with respect to the second through hole is downstream of the first through hole 9 is provided on the isolation unit. 这里,用语“连通”主要指流体能够通过。 Here, the term "communication" refers mainly through the fluid.

[0028]在图1所示的实施例中,隔离单元包括隔离筒6和筒状调压座7,调压座7的纵向截面为Z型且流体密封式连接于隔离筒6的下方。 [0028] In the embodiment illustrated in Figure 1, the isolation unit comprises a cylindrical spacer tube 6 and the regulator seat 7, a longitudinal section of the regulator housing 7 and Z-fluid-tight connection of the partition cylinder 6 below.

[0029]钻井冲击器10还包括固定在所述隔离单元上的用于产生节流压差的调压机构8。 [0029] The impactor 10 further includes drilling fixed to the isolation unit for generating a throttle pressure regulating means 8. 其中第二腔体12通过第二通孔9连通至第一腔体11的处于调压机构8下方的下部区域。 Wherein the second cavity 12 into communication with a pressure regulating mechanism 8 is in the lower region below the first cavity 11 through the second through hole 9.

[0030]调压机构8为流体密封式连接于调压座7之内的筒状调压阀,且调压座7的最小内径大于调压阀8的内径,以便造成节流压差。 [0030] The fluid regulating mechanism 8 is sealingly connected to the tubular pressure regulating valve seat 7 of the regulator, and the regulator is the inner diameter of the seat 7 is greater than the minimum inner diameter of the pressure regulating valve 8, so as to cause the throttle pressure. 调压阀8的上端顶靠调压座7的径向向内凸出的部分。 The pressure regulating valve 8 abuts against the upper end of the regulator housing 7 radially inwardly projecting portion.

[0031]钻井冲击器10还包括振动体3,用于对钻头施加冲击力。 [0031] impact drilling 10 further comprises a vibrating body 3, for applying an impact force to the drill bit. 在图1所示的实施例中,振动体3为径向截面为T形的中空活塞。 In the embodiment illustrated in Figure 1, the vibrating body 3 is T-shaped radial section hollow piston. 而调压座7能够限制振动体3的向下行程。 While the regulator seat 7 can be limited downward stroke of the vibrating body 3. 当振动体3处于第二位置时,振动体3与调压座7相互接触以传递冲击力。 When the vibrating body 3 in the second position, the vibrating body 3 and the regulator seat 7 contact each other to transmit an impact force.

[0032]振动体3通过弹性件5与隔离单元相连。 [0032] The oscillating body 5 are connected by an elastic member 3 and the isolation unit. 弹性件5可以为纵向设置的弹簧,弹簧下部连接于隔离单元的径向向内凸出的部分,上部连接于振动体3的径向向外凸出的部分。 The resilient member may be a spring 5 disposed longitudinal, radial isolation unit is connected to the lower spring inwardly projecting portion, the upper portion connected to the vibrating body 3 radially outwardly projecting portion. 振动体3的冲击力能够通过隔离单元的调压座7和本体I传递至钻头。 Impact vibration body 3 can be transmitted to the drill bit through the regulator housing 7 and the isolation unit body I.

[0033]当振动体3处于第一位置(初始位置)时,振动体3挡住第一通孔4而切断了第一腔体11和第二腔体12之间的流体互通;当振动体3运动到处于第一位置的下游的第二位置时,所述第一通孔4露出,使得来自所述第一腔体11的一部分流体能够经第一通孔4、和第二腔体12以及第二通孔9进入到处于调压机构8下方的下部区域。 [0033] When the vibrating body 3 in the first position (initial position), the vibrating body 3 of the first block 4 and the through hole 11 and the cut off fluid communication between the first chamber 12 second chamber; when the vibrating body 3 when moved to a second position downstream of the first position, the first through-hole 4 is exposed, such that the portion of the fluid from the first cavity 11 can 4, and the second cavity 12 through the first through hole and into the second through hole 9 in the lower region of the pressure regulating mechanism 8 below.

[0034] 冲击器10在隔离筒6上还包括位于第一通孔4和第二通孔9之间的第三通孔13。 [0034] The striker 10 on the spacer cylinder 6 further comprising a third through hole 9 is located between the first through-holes 4 and the second through-hole 13. 当振动体3向下运动但还堵住第一通孔4时,第三通孔13用来平衡腔12与弹性件5之间的压差,使得振动体3可以继续下行,直至第一通孔4与腔11连通,此时整个管柱实现上下压差平衡,振动体3在冲击力的反作用力和弹性件5的弹力的作用下上升,之后恢复至第一位置,再次堵住第一通孔4。 When the downward movement of the vibrating body 3 but also the through hole 4 of the first block, the third through hole 13 is used to balance the pressure differential between the chamber 512 and the elastic member, so that the vibrating body 3 may continue downward until the first pass hole 4 in communication with the chamber 11, this time the entire upper and lower pressure column to achieve balance, the vibrating body 3 is raised by the elastic force of the elastic member 5 and the reaction force of the impact force, was returned to the first position, the first block again the through-hole 4.

[0035]在一个实施例中,第二通孔9可以位于隔离单元的调压座7上,且其在纵向方向上位于调压机构8下方。 [0035] In one embodiment, the second through hole 9 may be located on the regulator seat isolation unit 7, and is positioned below the regulating means 8 in the longitudinal direction. 以保证第二腔体和调压机构8的下部区域之间的流体连通,从而将调压机构8产生的节流压差平衡掉。 To ensure fluid communication between the lower region of the second cavity 8 and the pressure regulating mechanism communicates to the throttle pressure regulating means 8 generates balanced off.

[0036]在一个实施例中,隔离单元上部设置有环状的压环2,压环2相邻地连接于本体I的轴向内侧,且压环2的内径小于隔离单元的内径,因而压环2能够限制振动体3的向上行程。 [0036] In one embodiment, the isolation unit is provided with an upper annular pressure ring 2, the pressure ring 2 is connected to the axially adjacent inner side I of the main body, and the pressure ring 2 is smaller than the inner diameter of the isolation unit, and thus the pressure ring 2 can be restricted in the upward stroke of the vibrating body 3.

[0037]本发明还提出了一种通过压差往复式钻井冲击器10来进行钻井冲击的方法: [0037] The present invention also provides a method of drilling a reciprocating impactor 10 by a differential pressure drilling shock:

[0038] 步骤I:通过调压机构8产生节流压差; [0038] Step I: throttle pressure generated by the pressure regulation mechanism 8;

[0039]步骤2:通过所述压差使振动体3从第一位置向第二位置运动,当振动体3处于第一位置时,振动体3挡住第一通孔4而切断了第一腔体11和第二腔体12之间的流体互通,当振动体3运动到处于第一位置11的下游的第二位置12时,第一通孔4露出,使得来自第一腔体11的一部分流体能够经第一通孔4、第二腔体12以及第二通孔9进入到下部区域,所述压差得到缓解; [0039] Step 2: the vibrating body 3 by the pressure difference from the first position to the second position, when the vibrating body 3 in the first position, to block the vibrating body 3 is cut first through-hole 4 of the first chamber 11 and 12 is in fluid communication between the second cavity body, the vibrating body 3 when the movement 12, the first through-hole 4 is exposed to a second position downstream of the first position 11 such that a portion of the cavity 11 from the first via the first fluid can through hole 4, a second chamber 12 and a second through-hole 9 into the lower region of the body, to ease the pressure differential;

[0040]步骤3:振动体3在冲击力的反作用力和弹性件5的弹力的作用下上升,之后恢复至第一位置,再次堵住第一通孔。 [0040] Step 3: the vibrating body 3 is raised by the elastic force of the elastic member 5 and the reaction force of the impact force, was returned to the first position, the first through hole block again.

[0041]根据本发明的冲击器10以及相应的方法具有以下几个优点: [0041] has the following advantages according to the present invention, the impact 10 and corresponding methods:

[0042] I)通过振动体3与弹簧5的配合,加上传压孔4(第一通孔)与平衡孔9(第二通孔)的设计,实现了振动体3的往复运动; [0042] I) 3 complex by the spring vibrator 5, 9 (second through holes) was added to upload the design pressure equalizing hole 4 (first through hole) with the balance hole, to achieve the reciprocating movement of the vibrating body 3;

[0043] 2)调压机构8的设计使得可以根据现场需求调节节流压差,使得性能调节比较方便; [0043] 2) regulating mechanism 8 makes it possible to design the throttle pressure adjusted according to the scene requirements, such that the performance moderator more convenient;

[0044] 3)整个冲击器简便、安全、可靠,极大地降低了作业成本,提高钻井时效; [0044] 3) the entire impactor is simple, safe, reliable, greatly reducing the operating costs, improving drilling prescription;

[0045] 4)结构简单、紧凑,零部件少,加工方便,性能稳定,启动容易,工作栗压低。 Simple [0045] 4) and compact structure, fewer parts, easy processing, stability, easy start, Li work down.

[0046]虽然已经参考优选实施例对本发明进行了描述,但在不脱离本发明的范围的情况下,可以对其进行各种改进并且可以用等效物替换其中的部件。 [0046] Although the case where the reference to preferred embodiments of the present invention has been described, without departing from the scope of the present invention, various modifications may be made therein and may be replaced by equivalent means. 本发明并不局限于文中公开的特定实施例,而是包括落入权利要求的范围内的所有技术方案。 The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions within the scope of the claims.

Claims (10)

  1. 1.压差往复式钻井冲击器,包括: 筒状本体,其两端分别与钻头与钻具相连接; 位于所述本体内并与其相连的筒状隔离单元,所述隔离单元将所述本体内的空间分为处于径向内侧的第一腔体和处于径向外侧的第二腔体,所述隔离单元上设有第一通孔和相对于所述第一通孔处于下游的第二通孔; 固定在所述隔离单元上的用于产生节流压差的调压机构,其中所述第二腔体通过所述第二通孔连通至所述第一腔体的处于所述调压机构下方的下部区域; 振动体,所述振动体通过弹性件与所述隔离单元相连,使得所述振动体的冲击力能够通过所述隔离单元和所述本体传递至钻头; 其中,当所述振动体处于第一位置时,所述振动体挡住所述第一通孔而切断了所述第一腔体和所述第二腔体之间的流体互通,当所述振动体运动到处于第一位置的下游的第二位置时, 1. Reciprocating drilling pressure impactor, comprising: a cylindrical body having both ends connected to the drill bit and drill string; located within the body and connected thereto a cylindrical separator unit, the isolation unit of the body space within the cavity is divided into a first and a second radially inner cavity in the radially outer side of the isolation unit is provided with a first through hole and is downstream of the second to the first through hole a through hole; fixed to the isolation unit for generating a throttle pressure regulating means through the second through hole wherein said second cavity into communication with said cavity in said first tone a lower region below the pressure means; vibrating body, the vibrating body by an elastic member connected to the isolation means, so that the impact force of the vibrating body can be transmitted to the drill bit through the isolation unit and the body; wherein, when the when in the first position of said vibrating body, the vibrating body blocking the first through hole is cut off fluid communication between the first cavity and the second cavity, when the vibrating body is moved to a second position downstream of the first position, 述第一通孔露出,使得来自所述第一腔体的一部分流体能够经所述第一通孔、所述第二腔体以及所述第二通孔进入到所述下部区域。 Said first through hole is exposed, such that the first portion of the fluid from the cavity through the first through hole capable, the second cavity and the second through hole into the lower region.
  2. 2.根据权利要求1所述的钻井冲击器,其特征在于,所述隔离单元包括隔离筒和筒状调压座,所述调压座流体密封式连接于所述隔离筒下方,所述调压机构为流体密封式连接于所述调压座之内的筒状调压阀。 The impact drill device according to claim 1, wherein said isolation means comprises a cylindrical spacer and the tubular housing regulator, the regulator seat fluid-tight connection beneath said isolation barrel, said modulation pressure means is a fluid-tight connection to the pressure regulating valve in the cylindrical seat of the voltage regulator.
  3. 3.根据权利要求2所述的钻井冲击器,其特征在于,所述调压阀的上端顶靠所述调压座的径向向内凸出的部分。 3. The impact drill as claimed in claim claim 2, wherein the upper end of the pressure regulating valve abuts against the regulator seat portion projecting radially inwardly.
  4. 4.根据权利要求2或3所述的钻井冲击器,其特征在于,所述第二通孔位于所述隔离单元的所述调压座上。 4. The drilling of the striker 2 or claim 3, wherein the second through-hole in said base of said regulator isolation unit.
  5. 5.根据权利要求2或3所述的钻井冲击器,其特征在于,当所述振动体处于第二位置时,所述振动体与所述调压座相互接触以传递冲击力。 The drilling of the striker 2 or claim 3, wherein, when the vibrating body is in a second position, the vibrating body and the regulator seat contact each other to transmit an impact force.
  6. 6.根据权利要求1到3中任一项所述的钻井冲击器,其特征在于,所述弹性件为纵向设置的弹簧,所述弹簧下部连接于所述隔离单元的径向向内凸出的部分,上部连接于所述振动体的径向向外凸出的部分。 1 to 3 according to the drilling impactor as claimed in any of claims, wherein said resilient member is a spring disposed in the longitudinal direction, the spring is connected to the lower portion projecting radially inwardly isolation unit portion, an upper portion connected to the vibrating body radially outwardly projecting portion.
  7. 7.根据权利要求1到3中任一项所述的钻井冲击器,其特征在于,所述隔离单元上部设置有环状的压环,所述压环相邻地连接于所述本体的轴向内侧,所述压环能够限制所述振动体的向上行程。 According to claim 1 to the drilling impactor as claimed in claims 3, wherein the isolation unit is provided with an upper annular pressure ring, the pressure adjacent to the collar connected to the body inward, the pressure ring can limit upward travel of the vibrating body.
  8. 8.根据权利要求1到3中任一项所述的钻井冲击器,其特征在于,所述振动体为径向截面为T形的中空活塞。 According to claim 1 to 3, the drilling of any one of the impactor, characterized in that said vibrator is a T-shaped radial section of the hollow piston.
  9. 9.根据权利要求1到3中任一项所述的钻井冲击器,其特征在于,所述本体在上端部和下端部处具有用于连接到钻头和钻具的螺纹结构。 According to claim 1 to 3, the drilling of any one of the impactor, characterized in that the body has a threaded structure for connection to the drill bit and drill in the upper and lower portions.
  10. 10.通过根据权利要求1到9中任一项所述的钻井冲击器来进行钻井冲击的方法,至少包括: 步骤I:通过调压机构产生节流压差; 步骤2:通过所述压差使振动体从第一位置向第二位置运动,当所述振动体处于第一位置时,所述振动体挡住所述第一通孔而切断了所述第一腔体和所述第二腔体之间的流体互通,当所述振动体运动到处于第一位置的下游的第二位置时,所述第一通孔露出,使得来自所述第一腔体的一部分流体能够经所述第一通孔、所述第二腔体以及所述第二通孔进入到下部区域以缓解所述压差; 步骤3:所述振动体在冲击力的反作用力和弹性件的弹力的作用下上升,之后恢复至第一位置,再次堵住第一通孔。 10. A method for impact drilling by the drilling 1-9 impactor according to any one of claims, comprising at least: Step I: throttle pressure generated by the pressure regulation mechanism; Step 2: the pressure differential the vibrating body toward the second position, when the vibrating body is in the first position, the vibrating body blocking the first through hole from a first position to cut off the first cavity and the second cavity fluid communication between the body when the vibrating body is moved to a second position downstream of the first position, the first through hole is exposed, such that fluid from the first cavity through said second portion capable a through hole, the second cavity and the second through hole into the lower region to alleviate the pressure differential; step 3: the vibrating body and a reaction force increase in the spring force of the impact force of the elastic member , then returned to the first position, the first through hole block again.
CN 201310298385 2013-07-16 2013-07-16 Pressure reciprocating impact drilling and method CN104295228B (en)

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CN105696969B (en) * 2016-04-14 2018-04-03 东营万邦石油科技有限责任公司 Cementing vibrator pulsed mechanical shock formula
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CN85203221U (en) * 1985-08-06 1986-10-29 地质矿产部勘探技术研究所 Self-exited all-hydrolic impactor
DE3865272D1 (en) * 1987-02-25 1991-11-07 Salzgitter Maschinenbau Means including a for hydraulic erdbohrzwecke provided hubgenerator.
GB9708294D0 (en) * 1997-04-24 1997-06-18 Anderson Charles A Downhole apparatus
US6315063B1 (en) * 1999-11-02 2001-11-13 Leo A. Martini Reciprocating rotary drilling motor
CN2479192Y (en) * 2001-04-26 2002-02-27 胜利石油管理局黄河钻井总公司 Annular bottom pressure equipment for well cementation
CN2866785Y (en) * 2005-01-19 2007-02-07 李国民 Rotary valve type hydraulic percussion device
CN2784570Y (en) * 2005-04-14 2006-05-31 中国石化集团胜利石油管理局钻井工艺研究院 Mechanical automatic vertical drilling tool
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