Rock melting tool with annealer section
    41.
    发明授权
    Rock melting tool with annealer section 失效
    具有退火炉部分的岩石熔化工具

    公开(公告)号:US5735355A

    公开(公告)日:1998-04-07

    申请号:US700954

    申请日:1996-08-21

    CPC分类号: E21C37/18 E21B33/138 E21B7/15

    摘要: A rock melting penetrator is provided with an afterbody that rapidly cools a molten geological structure formed around the melting tip of the penetrator to the glass transition temperature for the surrounding molten glass-like material. An annealing afterbody then cools the glass slowly from the glass transition temperature through the annealing temperature range to form a solid self-supporting glass casing. This allows thermally induced strains to relax by viscous deformations as the molten glass cools and prevents fracturing of the resulting glass liner. The quality of the glass lining is improved, along with its ability to provide a rigid impermeable casing in unstable rock formations.

    摘要翻译: 岩石熔融穿透器具有将周围的熔融玻璃状材料的玻璃化转变温度迅速冷却到穿透器的熔融端部周围形成的熔融地质结构的后体。 然后退火后体将玻璃从玻璃化转变温度缓慢冷却至退火温度范围,形成固体自支撑玻璃套管。 这允许热诱导的应变在熔融玻璃冷却时由粘性变形而松弛,并防止所得玻璃衬里的压裂。 改善了玻璃衬里的质量,同时提供了在不稳定岩层中提供刚性不透水套管的能力。

    Method and apparatus for blasting hard rock
    42.
    发明授权
    Method and apparatus for blasting hard rock 失效
    爆破硬岩的方法和装置

    公开(公告)号:US5573307A

    公开(公告)日:1996-11-12

    申请号:US468795

    申请日:1995-06-06

    CPC分类号: F42D3/00 E21B7/15 E21C37/18

    摘要: A method and apparatus for blasting of hard rock using a highly insensitive energetic material ignited with a moderately high energy electrical discharge causing the fracturing and break up of the hard rock is provided. The blasting apparatus comprises a reusable blasting probe including a high voltage electrode and a ground return electrode separated by an insulating tube. The two electrodes of the blasting probe are in electrical contact with a continuous volume of highly insensitive yet combustible material such as a metal powder and oxidizer mixture. The metal particles within the metal powder and oxidizer mixture form a plurality of fusible metal paths between the high voltage electrode and the ground return when subjected to an electric current delivered from a large capacitor bank coupled to the high voltage electrode. The plurality of fused metal paths act much like a fuse in that they provide a sufficiently high electrical resistance to allow coupling of the electrical energy from the capacitor bank to the metal powder and oxidizer mixture causing an increased dissipation of heat which initiates an exothermic reaction of the metal powder and oxidizer mixture generating high pressure gases fracturing the surrounding rock.

    摘要翻译: 提供了一种使用高度不敏感的高能材料来破坏硬质岩石的方法和装置,该材料被中等高能量放电引起,导致硬岩的断裂和破裂。 喷砂装置包括可重复使用的爆破探针,其包括高压电极和由绝缘管分开的接地返回电极。 爆破探针的两个电极与连续体积的高度不敏感的可燃材料如金属粉末和氧化剂混合物电接触。 当金属粉末和氧化剂混合物中的金属颗粒在经受来自耦合到高电压电极的大电容器组的电流时,在高电压电极和接地返回之间形成多个可熔金属路径。 多个熔融金属路径的作用非常类似于熔断器,因为它们提供足够高的电阻以允许来自电容器组的电能与金属粉末和氧化剂混合物的耦合,导致增加的热耗散,引起放热反应 产生高压气体的金属粉末和氧化剂混合物破碎周围的岩石。

    Plasma blasting probe assembly
    43.
    发明授权
    Plasma blasting probe assembly 失效
    等离子体爆破探头组件

    公开(公告)号:US5482357A

    公开(公告)日:1996-01-09

    申请号:US395469

    申请日:1995-02-28

    IPC分类号: E21B7/15 E21C37/18 E21C37/16

    CPC分类号: E21C37/18

    摘要: The present invention is concerned with a probe assembly for plasma blasting or fragmenting a substance such as rock, concrete and the like. The probe assembly contains a probe made of two coaxial electrodes separated by a dielectric material; a termination box secured to the probe and coupled to an energy storage module, and containing electrical connections between the probe and the energy storage module; and dampening means for dampening the movement of the termination box and the probe after a blast.

    摘要翻译: 本发明涉及用于等离子体喷射或碎裂诸如岩石,混凝土等物质的探针组件。 探针组件包含由两个由电介质材料隔开的同轴电极构成的探针; 固定到所述探头并且耦合到能量存储模块并且包含所述探针和所述能量存储模块之间的电连接的终端盒; 以及用于在爆炸后抑制终端盒和探针的运动的阻尼装置。

    Method and apparatus for disintegrating a material
    44.
    发明授权
    Method and apparatus for disintegrating a material 失效
    用于分解材料的方法和装置

    公开(公告)号:US4253704A

    公开(公告)日:1981-03-03

    申请号:US974231

    申请日:1978-12-29

    申请人: Igor A. Levin

    发明人: Igor A. Levin

    IPC分类号: B02C19/18 E21C37/18

    摘要: A method for disintegrating a material comprises acting on the material being disintegrated with shock waves produced upon applying individual electromagnetic field pulses to a current-conducting element arranged in a close proximity to the material being disintegrated. An apparatus for disintegrating a material comprises a unit forming electromagnetic field pulses connected to a current source and arranged in a close proximity to the current-conducting element.

    摘要翻译: 用于分解材料的方法包括作用在被分解的材料上,所述冲击波是在将各个电磁场脉冲施加到布置在接近待分解材料的导电元件时产生的。 用于分解材料的装置包括形成电磁场脉冲的单元,其连接到电流源并且布置成紧靠导电元件。

    Method of rock cutting employing plasma stream
    45.
    发明授权
    Method of rock cutting employing plasma stream 失效
    使用等离子体流的岩石切割方法

    公开(公告)号:US3788703A

    公开(公告)日:1974-01-29

    申请号:US3788703D

    申请日:1972-04-14

    申请人: HUMPHREYS CORP

    发明人: THORPE M

    IPC分类号: E21C37/16 E21C37/18

    CPC分类号: E21C37/18 E21C37/16

    摘要: A method especially useful for cutting and breaking hard rock such as granite from the face of a tunnel is disclosed. A pattern of slots are cut into the rock face by directing a high velocity plasma jet on the rock face to melt a portion of the rock face and produce a molten film and applying electrical power to the plasma-jet and a cooperating electrode to flow electric current through the molten film to further heat the molten film and melt additional rock to form a slot. After the pattern of slots are formed, spaced plasma streams are introduced into the slots and electrical power of a frequency effective to produce dielectric heating in the rock is applied through the plasma streams to produce a heated region within the rock mass which thermally stresses and severs that rock mass portion into fragments.

    摘要翻译: 公开了一种特别适用于从隧道表面切割和破碎硬质岩如花岗岩的方法。 通过将高速等离子体射流引导到岩石表面上来熔化岩面的一部分并产生熔融膜并向等离子体射流施加电力并且配合电极流动 电流通过熔融膜以进一步加热熔融膜并熔化附加的岩石以形成槽。 在形成槽的图案之后,将间隔的等离子体流引入到槽中,并且有效地在岩石中产生电介质加热的频率的电功率通过等离子体流被施加,以在岩体内产生热应力和切断的加热区域 那块岩石块变成碎片。

    ELECTRO-HYDRAULIC COMPLEX WITH A PLASMA DISCHARGER

    公开(公告)号:US20190211640A1

    公开(公告)日:2019-07-11

    申请号:US16326941

    申请日:2017-08-18

    IPC分类号: E21B28/00 G01V1/157 E21C37/18

    摘要: The invention relates to the field of oil production, and more particularly to equipment for stimulating increased oil recovery. The present complex is most suitable for operations in wells where natural flow and gas-lift recovery methods are used, and also for treating the near wellbore region of a formation in combination with acoustic (ultrasonic) emitters. A complex with a plasma discharger consists of two main parts: a surface power supply and control unit, and a downhole electro-hydraulic instrument consisting of a stabilizing unit, a capacitor unit and a plasma discharger. Said instrument has a length of not more than 3 meters and a diameter of not more than 52 mm, allowing the instrument to pass freely through all existing production tubing. The instrument has a modular structure, making it possible to build up the power of the plasma discharge from 0.5 to 3 kJ. It also comprises a plasma discharger designed to be easily disassembled for the replacement of electrodes and the installation of a new spool with a wire, said plasma discharger having a mechanical drive of a wire feeding unit, set in motion by a piston mechanism that is powered by a high pressure pulse produced by the discharger itself. Using the invention makes it possible to increase the efficiency and cost-effectiveness of oil recovery enhancement operations when working through tubing.

    Electrofracturing formations
    48.
    发明授权
    Electrofracturing formations 有权
    电压地层

    公开(公告)号:US09243487B2

    公开(公告)日:2016-01-26

    申请号:US13852680

    申请日:2013-03-28

    申请人: Shell Oil Company

    摘要: A method is provided to produce hydrocarbons from a formation, the method includes the steps of: placing a pair of electrodes within a formation; applying differential voltages between pairs of electrodes wherein the voltage differences between the electrodes is greater than at least 10,000 volts; and producing hydrocarbons from the formation or an adjacent formation wherein the formation has an initial permeability of less than ten millidarcy. The invention also includes an apparatus effective to release pulses of electrical energy into the formation as this frequency and voltage at least until the formation has reached a point where the electrical potential arcs from one electrode to at least one other electrode.

    摘要翻译: 提供了从地层产生烃的方法,该方法包括以下步骤:将一对电极放置在地层内; 在电极对之间施加差分电压,其中电极之间的电压差大于至少10,000伏; 以及从地层或相邻地层生产碳氢化合物,其中地层具有小于10毫达西的初始渗透率。 本发明还包括有效地将电能的脉冲释放到地层中的装置,该频率和电压至少直到地层已达到电势从一个电极到至少一个其它电极的点。

    Systems and methods for drilling boreholes with noncircular or variable cross-sections
    49.
    发明授权
    Systems and methods for drilling boreholes with noncircular or variable cross-sections 有权
    具有非圆形或可变横截面钻孔的系统和方法

    公开(公告)号:US09217287B2

    公开(公告)日:2015-12-22

    申请号:US13564338

    申请日:2012-08-01

    摘要: In a pulsed-electric drilling system, a nonrotating bit is given a noncircular shape to drill a correspondingly-shaped borehole, e.g., triangular, rectangular, polygonal, oval, or a more complex shape. Some embodiments employ a reconfigurable bit that deploys extensions as needed to dynamically vary the cross-section of the borehole at selected locations. In this fashion, a driller is able to create borehole with a preferred cross-sectional shape to, e.g., drill the smallest possible hole while simultaneously providing additional clearance for equipment or instrumentation, additional surface area for well inflow, channels for improved borehole cleaning, teeth for improved cementing, reduced contact area to reduce drag on the drillstring, or any other benefits achievable by customizing the borehole cross-section.

    摘要翻译: 在脉冲电钻井系统中,非旋转钻头被给予非圆形以钻出相应形状的钻孔,例如三角形,矩形,多边形,椭圆形或更复杂的形状。 一些实施例采用可重新配置的位,根据需要部署扩展,以在选定的位置动态地改变钻孔的横截面。 以这种方式,钻机能够创建具有优选横截面形状的钻孔,以便例如钻最小可能的孔,同时为设备或仪器提供额外的间隙,用于井流入的附加表面积,用于改进钻孔清洁的通道, 用于改善固井,减少接触面积以减少钻柱上的阻力的齿,或通过定制钻孔横截面可实现的任何其它优点。

    APPARATUS AND METHOD FOR SUPPLYING ELECTRICAL POWER TO AN ELECTROCRUSHING DRILL
    50.
    发明申请
    APPARATUS AND METHOD FOR SUPPLYING ELECTRICAL POWER TO AN ELECTROCRUSHING DRILL 审中-公开
    将电力供应给电钻的装置和方法

    公开(公告)号:US20150308235A1

    公开(公告)日:2015-10-29

    申请号:US14694517

    申请日:2015-04-23

    申请人: SDG, LLC

    发明人: William M. Moeny

    IPC分类号: E21B41/00 E21B7/15

    摘要: An apparatus and method for controlling power delivered to a pulsed power system which includes a command charge switch for controlling when power produced by a primary power system is fed into a cable. The command charge switch also controls the power delivered to the pulsed power system in a bottom hole assembly.

    摘要翻译: 一种用于控制传送到脉冲电力系统的功率的装置和方法,包括用于控制由主电力系统产生的电力何时被馈送到电缆中的指令充电开关。 命令充电开关还控制底孔组件中传递到脉冲电力系统的功率。