Composite stator construction for downhole drilling motors
    11.
    发明授权
    Composite stator construction for downhole drilling motors 失效
    井下钻机电机复合定子结构

    公开(公告)号:US5171138A

    公开(公告)日:1992-12-15

    申请号:US845545

    申请日:1992-03-04

    申请人: John Forrest

    发明人: John Forrest

    摘要: A composite stator construction for a downhole drilling motor which provides improved sealing and distortion properties. The elastomer which maintains the sealing/pumping action of the motor is applied in a uniform thickness to a rigid metallic form. In the stator, the rigid former has the basic configuration of the stator and is mounted within the casing of the motor. In the rotor, the elastomer can be applied directly to a metallic rotor core. The basic geometry is provided by the metallic former thereby reduces distortion of the lobes under increased torsional forces.

    摘要翻译: 一种用于井下钻井马达的复合定子结构,其提供改进的密封和变形特性。 保持马达的密封/泵送作用的弹性体以均匀的厚度施加到刚性金属形式。 在定子中,刚性成形器具有定子的基本结构并且安装在电动机的外壳内。 在转子中,弹性体可以直接施加到金属转子芯上。 基本的几何形状由金属成形体提供,从而减小在增加的扭转力下波瓣的变形。

    Drilling using downhole drilling tools
    12.
    发明授权
    Drilling using downhole drilling tools 失效
    钻井使用井下钻具

    公开(公告)号:US4775017A

    公开(公告)日:1988-10-04

    申请号:US133062

    申请日:1987-12-09

    摘要: A downhole motor (19) is mounted in a drill pipe (13) above a hole enlarger (14) intermediate ends of the pipe (13). The motor drives a lower pilot bit (28). A split flow bypass device (24) above the motor (19) allows part of the flow to drive the motor and the remainder to bypass through a central passage, the divided flows rejoining below the motor (19) with a restricted flow through jet nozzles (32) to the hole enlarger cutter (15). Flow passes centrally of the output shaft (26), past a bleed valve (34) bleeding up to 5% to an outer shaft space for lubricating bearings (30), to flow restrictor jet nozzles (33) of the pilot bit (28). In use flow is controlled to drive the motor (19) to drive the pilot bit (28) at desired speed and the drill string is rotated from the rotary platform of a drill rig to drive the hole enlarger (14) so that the hydraulic requirements of the hole enlarger (14) and the pilot bit (28) are met while only allowing sufficient fluid to pass through the motor (19) to give the required output speed at the pilot bit (28).

    摘要翻译: PCT No.PCT / GB87 / 00245 Sec。 371日期1987年12月9日第 102(e)1987年12月9日PCT PCT 1987年4月10日PCT公布。 公开号WO87 / 06300 日期:1987年10月22日。井下电动机(19)安装在管道(13)上方的钻孔管(13)上方,位于管道(13)的中间端部的扩孔器(14)上方。 电机驱动一个较低的导频位(28)。 马达(19)上方的分流式旁路装置(24)允许部分流动驱动马达并且其余部分绕过中心通道,分流的流体以受限制的流动流动通过喷嘴 (32)连接到孔放大器切割器(15)。 流体通过输出轴(26)的中心,经过泄放阀(34)的泄放阀(34),泄漏到用于润滑轴承(30)的外轴空间的5%到导向钻头(28)的限流喷嘴(33) 。 在使用中控制流量以驱动马达(19)以期望的速度驱动导向钻头(28),并且钻柱从钻机的旋转平台旋转以驱动孔扩大器(14),使得液压要求 满足孔扩大器(14)和导向钻头(28),同时仅允许足够的流体通过马达(19)以在导向钻头(28)处给出所需的输出速度。

    METHOD FOR SIZING PRODUCTION LOT STARTS WITHIN A LINEAR SYSTEM PROGRAMMING ENVIRONMENT
    13.
    发明申请
    METHOD FOR SIZING PRODUCTION LOT STARTS WITHIN A LINEAR SYSTEM PROGRAMMING ENVIRONMENT 有权
    在线性系统编程环境中生产最大起点的方法

    公开(公告)号:US20050096771A1

    公开(公告)日:2005-05-05

    申请号:US10605854

    申请日:2003-10-31

    IPC分类号: G06F19/00 G06Q10/00

    CPC分类号: G06Q10/087 G06Q10/06

    摘要: Allocating limited manufacturing resources to achieve a feasible production plan that is consistent with customer demand is a difficult and common problem faced in many manufacturing industries. For large-scale multi-stage manufacturing systems, existing methods are typically based either on allocating limited resources sequentially, according to a priority ranked list of production starts, or on linear programming based models. The output of such planning models is a production plan which specifies the quantity of each part to produce at each plant, using resources available to the enterprise. Typically there are lot-sizing rules defining the permissible production start quantities. The invention disclosed herein is a method for applying these rules to the lot-sizing of production starts within a linear program. It employs advanced heuristics that consider both established operational objectives (e.g. customer service, short lead times, low inventory, and prioritized allocation of supply and capacity) and lot-size rules to efficiently compute a feasible production plan for the division.

    摘要翻译: 分配有限的制造资源,实现符合客户需求的可行的生产计划是许多制造业面临的一个困难和常见的问题。 对于大型多级制造系统,现有方法通常基于依次分配有限资源,根据优先排序的生产启动列表,或基于线性规划的模型。 这种规划模型的产出是一个生产计划,其中规定了每个工厂生产的每个部件的数量,使用企业可用的资源。 通常,定义许可生产开始数量的批量规则。 本文公开的发明是一种将这些规则应用于在线性程序内的生产开始批量生产的方法。 它采用先进的启发式方法,考虑既定的经营目标(例如客户服务,交货时间短,库存量低,供应和容量优先分配)和批量规则,以有效地计算出该部门的可行生产计划。

    Drill string stabilizer
    14.
    发明授权
    Drill string stabilizer 失效
    钻柱稳定器

    公开(公告)号:US4844179A

    公开(公告)日:1989-07-04

    申请号:US79779

    申请日:1987-08-24

    IPC分类号: E21B17/10

    CPC分类号: E21B17/1078

    摘要: A stabilizer sleeve (7) for a drill string, adapted to fit about a down hole motor (1) or a drill string member, is formed with an internally threaded coupling at a lower end for releasable coupling to complimentary threads (8) formed on an upwardly extending intermediate coupling portion (15) of a bottom coupling-nut (3). The coupling-nut (3) is provided with a lower end portion (14) of larger diameter and an upper coupling portion (16) of reduced diameter. The upper coupling portion (16) is conventionally formed with an upwardly tapering form and right-hand thread whereas the intermediate coupling portion (15) is formed with a left-hand thread. The stabilizer sleeve (7) fits about the motor (1) or other body member and above the coupling-nut (3) so that the sleeve (7) may be removed upwardly from the coupling-nut (3).

    摘要翻译: PCT No.PCT / GB86 / 00728 Sec。 371日期1987年8月24日 102(e)日期1987年8月24日PCT提交1986年11月28日PCT公布。 出版物WO87 / 03642 日期:1987年6月18日。一种用于钻柱的稳定器套筒(7),其适于围绕井下电机(1)或钻柱构件,在下端形成有内螺纹联接件,用于可释放地联接 形成在底部联接螺母(3)的向上延伸的中间联接部分(15)上的互补螺纹(8)。 联接螺母(3)设置有较大直径的下端部分(14)和减小直径的上连接部分(16)。 上联接部分(16)通常形成有向上锥形和右旋螺纹,而中间联接部分(15)形成有左旋螺纹。 稳定器套筒(7)围绕马达(1)或其他主体构件并在联接器 - 螺母(3)上方安装,使得套筒(7)可以从联接螺母(3)向上移除。

    Drop ball sub-assembly for a down-hole device
    15.
    发明授权
    Drop ball sub-assembly for a down-hole device 失效
    用于井下装置的落球组件

    公开(公告)号:US4796704A

    公开(公告)日:1989-01-10

    申请号:US27231

    申请日:1987-03-04

    IPC分类号: E21B21/10 E21B34/06 E21B34/10

    摘要: A drop-ball sub-assembly comprises a tubular casing (4) defining a flushing fluid flow passage adapted for coupling at one end (3) to an inlet pipe (1) and at the other end (23) to an outlet pipe (24). A drop-ball (17) supporting member (8) is secured within the casing (4) in the flow passage. Apertures (21) are arranged to allow fluid flow past the supporting member (8), and a further aperture (9) supports a blow-out device (13) supporting a drop-ball (17) on a side distal from the end (23). The blow-out device (13) and the apertures (21,9) are such that at a first, lower fluid rate from the inlet (3) to the outlet (23) end, fluid flows through said aperture (21) and the blow-out device is retained, and that at a second, higher flow rate the blow-out device (13) is blown out of the further aperture to release the ball (17) through the further aperture (9). The blow-out device suitably comprises a frangible disc.

    摘要翻译: PCT No.PCT / GB86 / 00409 Sec。 371日期:1987年3月4日 102(e)1987年3月4日PCT PCT日期为1986年7月15日PCT公布。 公开号WO87 / 00572 日期:1987年1月29日。落球子组件包括管状壳体(4),其限定冲洗流体流动通道,其适于在一端(3)与入口管(1)连接并且在另一端(23 )到出口管(24)。 落球(17)支撑构件(8)固定在流道内的壳体(4)内。 孔21被布置成允许流体流过支撑构件(8),并且另外的孔(9)支撑在远离端部的一侧支撑落球(17)的吹出装置(13) 23)。 吹出装置(13)和孔(21,9)使得在从入口(3)到出口(23)的第一较低流体速率结束时,流体流过所述孔(21),并且 吹出装置被保持,并且在第二较高流速下,吹出装置(13)从另外的孔中吹出,以通过另外的孔(9)释放球(17)。 吹出装置适当地包括易碎盘。