Triple branch completion with separate drilling and completion templates
    1.
    发明授权
    Triple branch completion with separate drilling and completion templates 失效
    三分支完成,具有单独的钻井和完井模板

    公开(公告)号:US4415205A

    公开(公告)日:1983-11-15

    申请号:US282210

    申请日:1981-07-10

    摘要: A method, and apparatus to practice the method, to complete multiple (triple) branch wells using separate drill and casing templates. Principally this invention finds its greatest utility in the in situ leach mining of deep lying ore bodies. Initially, a generally vertical main hole is drilled in the earth and cased. The particular casing used has an internal indexing dog and specific areas which act as windows from which some of the branch wells are to be drilled. To form the individual branch wells, each window is sequentially drilled out by a drilling assembly which is oriented by a movable drilling template. The template is fixed with respect to the casing for each branch drilling by engaging the indexing dog. After each window and branch well is drilled, the drilling assembly and drilling template are retrieved to the surface and repositioned with respect to each other to provide for the next branch drilling. A whipstock assembly is used in connection with the drilling template and indexing dog to positively locate each branch well. After all branch wells are drilled, the whipstock assembly is retrieved. Next a triple tubing guide or template, which can engage the same indexing dog, is used to simultaneously position branch casings in each of the previously drilled branch holes. A tubing hanger is used to position and hold these casings within the main casing. Cement baskets are attached to the shoe (end) of each branch casing and all casings are cemented in place. Lastly, the branch wells may be perforated, unless this has been done in the casing production process, and the well is then ready for production.

    摘要翻译: 使用单独的钻孔和套管模板完成多个(三重)分支井的方法和实施该方法的装置。 主要是本发明在深层矿体的原位浸出采矿中发挥最大的作用。 最初,在地球上钻一个大致垂直的主洞,套管。 使用的特定外壳具有内部分度狗和用作要从其中钻出一些分支井的窗口的特定区域。 为了形成单独的分支井,每个窗口由钻井组件依次钻出,钻井组件由可移动的钻井模板定向。 通过接合分度狗,模板相对于每个分支钻孔的套管固定。 在钻出每个窗口和分支井后,将钻井组件和钻井模板取回到表面并相对于彼此重新定位以提供下一个分支钻孔。 一个造斜器组件与钻孔模板和分度狗结合使用,以确定每个分支井的位置。 在钻完所有分支井后,取出造斜器总成。 接下来,可以使用相同的分度杆啮合的三重导管引导件或模板来同时将分支壳体定位在每个先前钻孔的分支孔中。 管状悬挂器用于将这些壳体定位和保持在主壳体内。 水泥篮被连接到每个分支壳体的鞋(端部)上,并且所有壳体都被粘合到位。 最后,分支井可以是穿孔的,除非这已经在套管生产过程中完成,然后井准备生产。

    Drilling mud degasser apparatus and system
    2.
    发明授权
    Drilling mud degasser apparatus and system 失效
    钻井泥浆脱气装置及系统

    公开(公告)号:US4294593A

    公开(公告)日:1981-10-13

    申请号:US145895

    申请日:1980-05-02

    申请人: William A. Rehm

    发明人: William A. Rehm

    IPC分类号: B01D19/00 E21B21/06

    摘要: A drilling mud degasser apparatus and system consists of a vacuum degasser tank, system of blowers or compressors for evacuation, and various control features associated therewith. The tank has an upward spiraling helical shelf which becomes progressively wider from bottom to top so that mud is discharged in a thin film into the evacuated interior of the tank. Mud level in the tank is controlled by a pair of float operated valves, one controlling a bottom discharge and the other controlling an overflow valve. A plurality of compressors are connected in parallel for evacuating the tank. One compressor runs continually and the others are turned on in response to tank pressure and off in response to compressor outlet temperature. A safety conduit is positioned in parallel to the compressors and includes a swing check valve which opens in response to a pressure surge in the tank to permit the increased pressure to bypass the compressors. The overflow-controlling valve is protected against mud contamination by an inverted U-tube. Mud is normally removed from the bottom discharge under suction provided by mud flowing through an aspirator nozzle.

    摘要翻译: 钻井泥浆脱气装置和系统由真空脱气罐,鼓风机系统或用于排空的压缩机组成,以及与其相关的各种控制特征。 罐具有向上螺旋的螺旋架,其从底部到顶部逐渐变宽,使得泥浆以薄膜排出到罐的抽空的内部。 罐中的泥浆液位由一对浮动操作阀控制,一个控制底部排放,另一个控制溢流阀。 多个压缩机并联连接以排空罐。 一个压缩机连续运行,其他压缩机响应于罐压力而打开,并响应于压缩机出口温度而关闭。 一个安全导管平行于压缩机定位,并包括一个回转止回阀,该止回阀响应于罐中的压力波动而打开,以允许增加的压力绕过压缩机。 溢流控制阀通过倒U形管保护免受泥浆污染。 泥浆通常从通过吸气嘴喷嘴的泥浆提供的吸力下从底部排放物中取出。

    Glide head with outer active rail

    公开(公告)号:US06666076B2

    公开(公告)日:2003-12-23

    申请号:US10008954

    申请日:2001-12-06

    IPC分类号: G01B528

    摘要: A glide head for detecting asperities on a disc surface is provided. The glide head includes a glide slider which includes a glide slider body that has a leading edge, a trailing edge, and a bottom surface therebetween. The bottom surface is centered along a longitudinal axis that extends between the leading and trailing edges. An inside rail is disposed on the bottom surface on a first side of the longitudinal axis extends from the leading edge to the trailing edge. An outside rail is disposed on the bottom surface on a second side of the longitudinal axis. The outside rail also extends from the leading edge to the trailing edge. The inside and outside rails are substantially equidistant from the longitudinal axis at the bottom surface. The outside rail is positioned lower than the inside rail such that a bottom surface of the outside rail extends further from a point on the longitudinal axis on the trailing edge than does a bottom surface of the inside rail.

    Orienting and circulating sub
    4.
    发明授权
    Orienting and circulating sub 失效
    定向和循环子

    公开(公告)号:US4789032A

    公开(公告)日:1988-12-06

    申请号:US101249

    申请日:1987-09-25

    摘要: An orienting and circulating sub is disclosed for connection in an apparatus for angular drilling in the earth. The drilling apparatus comprises a drill string extending into a substantially vertical well bore in the earth supporting a fluid operated motor and drill bit at its lower end. The drill bit is supported for angular drilling by either using a bent sub for supporting the drilling motor or be using a drilling motor with a bent housing. A surveying tool is connected above the motor for determining and controlling the direction of drilling. A mule shoe keying sub is connected to the surveying tool for orienting the position of the motor in relation to said surveying tool. The orienting sub comprises a tubular housing formed in two sections threaded together with one end connected to the surveying tool by the mule shoe keying sub and the other end connected to the bent sub or to the bent motor housing. The orienting sub has a sleeve mounted in the end of the lower housing section with a key for receiving the mule shoe for locating the sub in relation to the surveying tool. The sleeve is oriented in the housing by a system of fine grooves and splines on the sub section and on the sleeve which permit fine angular adjustment. A modified Baker float valve is positioned in the lower end of the tool with a flapper check valve. A piston valve with shear pin is provided to open a bypass valve for draining the drill string during lifting.

    摘要翻译: 公开了一种用于在地球中用于角钻孔的装置中的连接的定向和循环子系统。 钻孔装置包括延伸到地面中的基本竖直的井眼中的钻柱,其支撑流体操作的马达和钻头在其下端。 通过使用用于支撑钻孔马达的弯曲副或者使用具有弯曲外壳的钻孔马达来支持钻头进行角度钻孔。 在电机上方连接有测量工具,用于确定和控制钻孔方向。 骡子鞋键合子连接到测量工具,用于相对于所述测量工具定位电动机的位置。 定向子包括形成为两个部分的管状壳体,螺纹连接在一起,一端通过骡子键合子连接到测量工具,另一端连接到弯曲的子部件或弯曲的电动机壳体。 定向子具有安装在下壳体部分的端部中的套筒,其具有用于接收骡子鞋的钥匙,用于相对于测量工具定位子套。 套筒通过在子部分和套筒上的精细凹槽和花键的系统定向在壳体中,允许精细的角度调节。 改装的贝克浮球阀位于工具的下端,带有挡板止回阀。 提供具有剪切销的活塞阀,以在提升期间打开用于排放钻柱的旁通阀。

    Directional well control
    5.
    发明授权
    Directional well control 失效
    定向井控制

    公开(公告)号:US4938298A

    公开(公告)日:1990-07-03

    申请号:US315882

    申请日:1989-02-24

    申请人: William A. Rehm

    发明人: William A. Rehm

    IPC分类号: E21B7/04 E21B44/00 E21B47/022

    CPC分类号: E21B44/00 E21B47/022 E21B7/04

    摘要: A method and apparatus for prediction of the turn rate of a deviated well is disclosed. The turn rate is determined by collecting data for interference, bend length, and rate of turn from a variety of drilled wells. Using regression technique, turning rate is then expressed as a linear function of the ratio of interference to bend length.

    摘要翻译: 公开了一种用于预测偏斜井的转弯速率的方法和装置。 通过收集来自各种钻井的干扰,弯曲长度和转弯速率的数据来确定转弯速率。 使用回归技术,转速被表示为干涉与弯曲长度之比的线性函数。

    Method and system for circulating a gas bubble from a well
    6.
    发明授权
    Method and system for circulating a gas bubble from a well 失效
    从井中循环气泡的方法和系统

    公开(公告)号:US4253530A

    公开(公告)日:1981-03-03

    申请号:US82848

    申请日:1979-10-09

    IPC分类号: E21B21/08 E21B7/00 E21B47/06

    CPC分类号: E21B21/08

    摘要: A gas bubble is circulated from a well by a system that maintains the well and bottom hole pressure substantially constant by progressively increasing the casing pressure as needed to maintain the drill pipe pressure substantially constant. An incrementally increasing casing pressure reference signal is produced by detecting each occurrence of the drill pipe pressure falling a predetermined amount below a drill pipe pressure reference signal. The casing pressure reference signal is compared with the actual casing pressure. A throttling valve is closed a corresponding amount if the acutal casing pressure is less than the casing pressure reference signal. The throttling valve is opened a corresponding amount if the actual casing pressure is greater than the casing pressure reference signal.

    摘要翻译: 气体通过系统循环,该系统通过根据需要逐渐增加套管压力来维持井和井底压力基本上恒定,以保持钻杆压力基本上恒定。 通过检测钻杆压力在钻杆压力参考信号下方下降预定量的每次出现来产生递增增加的套管压力参考信号。 套管压力参考信号与实际套管压力进行比较。 如果食管套管压力小于套管压力参考信号,则节流阀关闭相应的量。 如果实际套管压力大于套管压力参考信号,则节流阀打开相应的量。

    Desilter
    7.
    发明授权
    Desilter 失效
    脱盐机

    公开(公告)号:US4226726A

    公开(公告)日:1980-10-07

    申请号:US17103

    申请日:1979-03-05

    申请人: William A. Rehm

    发明人: William A. Rehm

    CPC分类号: B04C5/28 B04C5/13 E21B21/065

    摘要: An improved desilter for drilling muds consists of one or more hydrocyclones with certain features providing for better separation of large particles from the mud. Drilling muds used in drilling oil wells and the like give substantially improved performance when the larger particles are removed therefrom and the mud consists of fine particles having a narrow range of particle size.An improved hydrocyclone for removing coarser particles from the drilling mud has overflow and underflow outlets which discharge openly rather than into a collection manifold. The overflow outlet is in the form of a controllable syphon which may be adjusted in syphon length or which may include means to adjust the effective length of the syphon leg. The adjustment of the syphon leg controls the overflow of the thin, more uniform mud and effects a superior separation of the larger particles from the mud.A preferred desilter apparatus comprises a plurality of hydrocyclones, as described, interconnected by an inlet manifold and having underflow and overflow outlets, respectively, for discharge of large particles and of a thin mud of uniform small particle size to separate open collection systems.

    摘要翻译: 用于钻井泥浆的改进的脱盐机由一种或多种具有某些特征的水力旋流器组成,从而提供较大的颗粒与泥浆的更好分离。 用于钻井油井等的钻井泥浆当从其中除去较大的颗粒并且泥浆由具有窄粒度范围的细颗粒组成时,能够显着提高性能。 用于从钻井泥浆中去除较粗颗粒的改进的水力旋流器具有溢出和下溢出口,其排放开放而不是进入收集歧管。 溢流出口是可控虹吸管的形式,其可以以虹吸长度调节,或者可以包括调节虹吸管腿的有效长度的装置。 虹吸腿的调节控制了薄的,更均匀的泥浆的溢出,并且实现了较大颗粒与泥浆的优异分离。 优选的脱滤器装置包括多个分别由入口歧管互连并具有下溢和溢流出口的水力旋流器,用于排放大颗粒和均匀小粒径的薄泥浆以分离开放收集系统。

    Controlled directional drilling system and method
    9.
    发明授权
    Controlled directional drilling system and method 失效
    受控定向钻井系统及方法

    公开(公告)号:US4991668A

    公开(公告)日:1991-02-12

    申请号:US306050

    申请日:1989-02-06

    摘要: A system of apparatus for the controlled directional drilling of a deviated well bore into the earth has a fluid operated drilling motor and drill bit secured on the bottom end of a drill string. The drill bit is supported for angular drilling relative to a substantially vertical well bore by either using a bent sub for supporting the drilling motor or by using a drilling motor with a bent housing or a combination of the two. A bypass tool is connected to the bent sub or motor housing, an orienting sub and mule shoe keying sub are connected to the bypass tool, and a surveying tool is connected in the drill string above the orienting sub and mule shoe sub. The bypass tool is in fluid connection with the motor and has a telescopic housing and a valve for circulating fluid into the bore hole to flush cuttings and debris therefrom. The surveying tool determines and controls the direction of drilling. The orienting sub and mule shoe keying sub orients the position of the motor and drill bit in relation to the surveying tool.

    摘要翻译: 用于将偏心井眼受控定向钻入地球的装置系统具有固定在钻柱底端的流体操作的钻井马达和钻头。 通过使用用于支撑钻孔马达的弯曲副或通过使用具有弯曲壳体或两者的组合的钻孔马达,该钻头被支撑用于相对于基本竖直的井眼的角钻孔。 旁路工具连接到弯曲的子或电动机壳体上,定向副和骡子鞋键合子连接到旁路工具,测量工具连接在定向子和骡子鞋子上的钻柱中。 旁路工具与电机流体连接,并具有伸缩壳体和用于将流体循环到钻孔中的阀,以从其中冲洗切屑和碎屑。 测量工具确定和控制钻井方向。 定位子和骡子鞋键控将电机和钻头的位置相对于测量工具定位。

    Total gas containment system
    10.
    发明授权
    Total gas containment system 失效
    总气体收集系统

    公开(公告)号:US4010012A

    公开(公告)日:1977-03-01

    申请号:US546249

    申请日:1975-02-03

    IPC分类号: B01D19/00 E21B21/06

    摘要: A system is disclosed for removing gas from drilling mud without allowing the gas to escape to the atmosphere before the gas is treated to prevent contamination. The system includes a mud-gas separator vessel with a drilling mud inlet, means for maintaining a minimum mud level in said mud-gas separator vessel, a separator vessel gas outlet, and a separator vessel drilling mud outlet. A degassing means includes a drilling mud inlet located in a position higher than said minimum mud level. Enclosed conduit means connects the separator vessel drilling mud outlet to said degassing means drilling mud inlet.

    摘要翻译: 公开了一种用于从钻井泥浆中除去气体的系统,而不允许气体在气体被处理之前逃逸到大气中以防止污染。 该系统包括具有钻井泥浆入口的泥浆 - 气体分离器容器,用于在所述泥浆 - 气体分离器容器中保持最小泥浆水平的装置,分离器容器气体出口和分离器容器钻井泥浆出口。 脱气装置包括位于高于所述最小泥浆水平的位置的钻井泥浆入口。 封闭的管道装置将分离器容器钻井泥浆出口连接到所述脱气装置钻井泥浆入口。