Apparatus and methods for corrosion protection of downhole tools
    32.
    发明授权
    Apparatus and methods for corrosion protection of downhole tools 有权
    井下工具防腐蚀装置及方法

    公开(公告)号:US08887832B2

    公开(公告)日:2014-11-18

    申请号:US13157979

    申请日:2011-06-10

    摘要: In one aspect, an apparatus for use in a wellbore is provided that in one embodiment includes a drill bit having a bit body that is susceptible to corrosion when the drill bit is utilized in wellbore, an anode placed at a selected location on the bit body, a cathode associated with the bit body and a power source configured to provide electrical power to the anode to complete an electrical circuit between the anode and the bit body, wherein the supply of the electrical power to the anode arrests corrosion of the bit body when the drill bit is in the wellbore.

    摘要翻译: 在一个方面,提供一种在井眼中使用的装置,其在一个实施例中包括钻头,当钻头用于井眼时,该钻头具有易受腐蚀的钻头体,位于钻头体上的选定位置的阳极 ,与所述钻头体相关联的阴极和被配置为向所述阳极提供电功率以完成所述阳极和所述钻头体之间的电路的电源,其中所述阳极和所述钻头体的电力供应将阻止所述钻头体的腐蚀, 钻头位于井眼中。

    Method of making an earth-boring particle-matrix rotary drill bit
    33.
    发明授权
    Method of making an earth-boring particle-matrix rotary drill bit 有权
    制造钻孔颗粒 - 矩阵旋转钻头的方法

    公开(公告)号:US08616089B2

    公开(公告)日:2013-12-31

    申请号:US13084078

    申请日:2011-04-11

    IPC分类号: B21K5/04

    摘要: A method of making an earth-boring rotary drill bit including a bit body configured to carry one or more cutters for engaging a subterranean earth formation. The method includes providing a plurality of hard particles in a mold to define a particle precursor of the bit body. The method also includes infiltrating the particle precursor of the bit body with a molten matrix material comprising a shape memory alloy forming a hard particle-molten matrix material mixture, wherein the hard particles are randomly dispersed within the molten matrix material. The method further includes cooling the molten matrix material to solidify a matrix material and form the bit body comprising a particle-matrix composite material having the plurality of hard particles randomly dispersed throughout the matrix material.

    摘要翻译: 一种制造钻孔旋转钻头的方法,该钻头包括构造成承载用于接合地下地层的一个或多个切割器的钻头体。 该方法包括在模具中提供多个硬颗粒以限定钻头体的颗粒前体。 该方法还包括用熔融基质材料渗透钻头体的颗粒前体,所述熔融基质材料包含形成硬颗粒熔融基质材料混合物的形状记忆合金,其中硬颗粒随机分散在熔融基体材料内。 该方法还包括冷却熔融基质材料以固化基质材料并形成钻头体,其包含具有随机分散在整个基体材料中的多个硬颗粒的颗粒 - 基体复合材料。

    Apparatus and Method for Drilling Wellbores Based on Mechanical Specific Energy Determined from Bit-Based Weight and Torque Sensors
    34.
    发明申请
    Apparatus and Method for Drilling Wellbores Based on Mechanical Specific Energy Determined from Bit-Based Weight and Torque Sensors 有权
    基于基于位的重量和扭矩传感器确定的机械比能的钻井孔的装置和方法

    公开(公告)号:US20120279783A1

    公开(公告)日:2012-11-08

    申请号:US13454359

    申请日:2012-04-24

    IPC分类号: E21B7/04 E21B47/024

    CPC分类号: E21B45/00

    摘要: The disclosure, in one aspect, provides a method of drilling a wellbore that includes features of drilling the wellbore using a drilling assembly that includes a drill bit that further includes a weight sensor and a torque sensor, determining weight-on-bit using measurements from the weight sensor and torque-on-bit using measurement from the torque sensor during drilling of the wellbore, obtaining measurements for rotational speed of the drill bit and rate of penetration of the drill bit during drilling of the wellbore, determining mechanical specific energy of the bottomhole assembly using the determined weight-on-bit, torque-on-bit and obtained rotational speed of the drill bit and the obtained rate of penetration of the drill bit, and altering a drilling a parameter in response to the determined mechanical specific energy.

    摘要翻译: 在一个方面,本公开提供了一种钻井井的方法,其包括使用钻井组件钻井的特征,所述钻井组件包括钻头,该钻头组件还包括重量传感器和扭矩传感器,使用来自 重量传感器和钻头上的扭矩传感器在钻井期间使用来自扭矩传感器的测量,在钻井期间获得钻头的旋转速度和钻头的穿透速率的测量,确定钻井中的机械比能 使用所确定的钻头重量,钻头转矩和获得的钻头转速以及所获得的钻头的穿透速率,以及响应于所确定的机械比能而改变钻孔参数。

    Apparatus and method for determining corrected weight-on-bit
    35.
    发明授权
    Apparatus and method for determining corrected weight-on-bit 有权
    用于确定校正加权重的装置和方法

    公开(公告)号:US08245793B2

    公开(公告)日:2012-08-21

    申请号:US12488357

    申请日:2009-06-19

    IPC分类号: E21B47/00 E21B47/01

    CPC分类号: E21B44/005

    摘要: In one aspect, a method of determining a corrected weight-on-bit is provided, which method, in one embodiment, may include: drilling a wellbore with the drill bit; determining a weight-on-bit while drilling the wellbore; determining a pressure differential across an effective area of the drill bit while drilling the wellbore; and determining the corrected weight-on-bit from the determined weight-on-bit and the determined pressure differential.

    摘要翻译: 在一个方面,提供了一种确定校正的重量重量的方法,在一个实施例中,该方法可以包括:用钻头钻井井; 在钻井时确定钻头重量; 在钻井时确定穿过钻头的有效区域的压力差; 以及从所确定的重量位和所确定的压力差确定所述校正的重量位。

    Bit based formation evaluation and drill bit and drill string analysis using an acoustic sensor
    36.
    发明授权
    Bit based formation evaluation and drill bit and drill string analysis using an acoustic sensor 有权
    基于位的地层评估和使用声学传感器的钻头和钻柱分析

    公开(公告)号:US08215384B2

    公开(公告)日:2012-07-10

    申请号:US12268173

    申请日:2008-11-10

    IPC分类号: G01V1/44 E21B47/00

    摘要: A drill bit having a bit body includes one or more acoustic sensors that are configured to detect elastic waves when the drill bit is used for drilling a wellbore. The acoustic sensor may be configured to detect a sonic signature associated with a failure event. In further arrangements, the acoustic sensors may be configured to receive signals from a controlled acoustic source.

    摘要翻译: 具有钻头体的钻头包括一个或多个声学传感器,其被配置为当钻头用于钻井时检测弹性波。 声学传感器可以被配置为检测与故障事件相关联的声音签名。 在进一步的布置中,声学传感器可以被配置为从受控声源接收信号。

    Bit based formation evaluation using a gamma ray sensor
    37.
    发明授权
    Bit based formation evaluation using a gamma ray sensor 有权
    使用伽马射线传感器进行基于位的地层评估

    公开(公告)号:US08210280B2

    公开(公告)日:2012-07-03

    申请号:US12250072

    申请日:2008-10-13

    IPC分类号: E21B47/01

    摘要: A drill bit made according to one embodiment includes at least a gamma ray sensor configured to provide signals representative of a presence and/or amount of a naturally occurring gamma ray source when the drill bit is used for cutting into a formation. A circuit may be configured to process signals from the gamma ray sensor to provide an estimate a parameter relating to the naturally occurring gamma ray source, which may used for purposes such as optimizing drilling parameters and geosteering.

    摘要翻译: 根据一个实施例制造的钻头至少包括伽马射线传感器,其被配置为当钻头用于切割成地层时提供表示天然存在的伽马射线源的存在和/或数量的信号。 电路可以被配置为处理来自伽马射线传感器的信号以提供与天然存在的伽马射线源相关的参数的估计,其可以用于例如优化钻井参数和地理转向。

    Apparatus and Methods for Corrosion Protection of Downhole Tools
    38.
    发明申请
    Apparatus and Methods for Corrosion Protection of Downhole Tools 有权
    井下工具腐蚀防护装置及方法

    公开(公告)号:US20110315444A1

    公开(公告)日:2011-12-29

    申请号:US13157979

    申请日:2011-06-10

    IPC分类号: E21B47/18 E21B10/00 E21B7/00

    摘要: In one aspect, an apparatus for use in a wellbore is provided that in one embodiment includes a drill bit having a bit body that is susceptible to corrosion when the drill bit is utilized in wellbore, an anode placed at a selected location on the bit body, a cathode associated with the bit body and a power source configured to provide electrical power to the anode to complete an electrical circuit between the anode and the bit body, wherein the supply of the electrical power to the anode arrests corrosion of the bit body when the drill bit is in the wellbore.

    摘要翻译: 在一个方面,提供一种在井眼中使用的装置,其在一个实施例中包括钻头,当钻头用于井眼时,该钻头具有易受腐蚀的钻头体,位于钻头体上的选定位置的阳极 ,与所述钻头体相关联的阴极和被配置为向所述阳极提供电功率以完成所述阳极和所述钻头体之间的电路的电源,其中所述阳极和所述钻头体的电力供应将阻止所述钻头体的腐蚀, 钻头位于井眼中。

    System, method and apparatus for enhanced cutting element retention and support in a rock bit
    39.
    发明授权
    System, method and apparatus for enhanced cutting element retention and support in a rock bit 有权
    用于在岩石钻头中增强切削元件保持和支撑的系统,方法和装置

    公开(公告)号:US07836792B2

    公开(公告)日:2010-11-23

    申请号:US12237421

    申请日:2008-09-25

    IPC分类号: B21K5/04

    摘要: A rock bit is formed with pockets for enhanced cutting element retention and support of cutting elements during operation of the rock bit. Portions of the pockets are carburized to increase a yield strength of the pockets, which also increases the retention of the cutting elements. The pockets are formed at a diameter that is slightly smaller than an outer diameter of the cutting elements. Portions of the pockets are then carburized. The pockets are heated until the diameter of the pockets is equal to the outer diameter of the cutting elements. After the rock bit has been cooled and cleaned, a material is placed in each pocket prior to installing the cutting elements. The material homogenizes support for the cutting elements during operation of the rock bit.

    摘要翻译: 岩石钻头形成有用于在岩石钻头操作期间增强切割元件保持和支撑切割元件的凹坑。 口袋的一部分被渗碳以增加袋的屈服强度,这也增加了切割元件的保持力。 凹穴形成在比切割元件的外径稍小的直径上。 然后将部分口袋渗碳。 口袋被加热直到口袋的直径等于切割元件的外径。 在岩石钻头被冷却和清洁之后,在安装切割元件之前,将材料放置在每个凹槽中。 该材料在岩石钻头操作期间均匀化了切割元件的支撑。

    Drill Bit With A Sensor For Estimating Rate Of Penetration And Apparatus For Using Same
    40.
    发明申请
    Drill Bit With A Sensor For Estimating Rate Of Penetration And Apparatus For Using Same 有权
    钻头用传感器估算穿透率和使用相同的装置

    公开(公告)号:US20100038136A1

    公开(公告)日:2010-02-18

    申请号:US12193332

    申请日:2008-08-18

    IPC分类号: E21B45/00

    CPC分类号: E21B45/00

    摘要: An embodiment of an apparatus made according to the disclosure includes a drill bit that includes a tip on a bit body configured to contact a formation when the drill bit is utilized to cut into the formation and a sensor coupled to the tip to provide signals responsive to the displacement of the tip when the tip is in contact with the formation.

    摘要翻译: 根据本公开制造的装置的实施例包括钻头,该钻头包括位于钻头体上的尖端,所述钻头主体构造成当钻头用于切割成地层时接触地层,并且传感器耦合到尖端以提供响应于 当尖端与地层接触时尖端的位移。