Data processing and display for echo sounding data
    72.
    发明授权
    Data processing and display for echo sounding data 失效
    回波探测数据的数据处理和显示

    公开(公告)号:US5117399A

    公开(公告)日:1992-05-26

    申请号:US552465

    申请日:1990-07-16

    摘要: An echo sounding system includes a acoustic gun which is mounted to the wellhead of a borehole. The acoustic gun produces a acoustic pulse which is transmitted down the borehole. A tubing string is installed in the borehole and it has substantially evenly spaced collars. Fluid is pumped from the borehole, or well, by use of a reciprocating pump driven by a pump rod extending to the surface. Fluid is received from a surrounding formation and collects in the borehole. The acoustic pulse produces reflections when it strikes the tubing collars and the surface of the fluid. A microphone detects the reflections to produce a return signal. This signal is digitized and stored. The digitized signal is processed to detect the rate of the collar reflections and the stored signal is narrowband filtered with a passband filter centered at the rate of receipt of the collars. The data signal is further processed to determine the time of occurrence of the acoustic pulse and the liquid surface reflection. Each cycle of the narrowband filtered signal corresponds to one collar reflection. In this signal, each cycle is counted, and extrapolation used when necessary to produce a collar count extending from the surface to the liquid surface. This is multiplied by the average joint length to produce the depth to the liquid surface. The data signal and various well parameters and a schematic of the well are displayed for use by an operator. The system further detects the liquid level and displays it as a marker on the data signal. An operator can use the automatically determined marker or move it to another position. Finally, the operator is provided with optimum operating parameters for achieving maximum production from the well.

    摘要翻译: 回波探测系统包括安装在钻孔井口的声枪。 声枪产生在井眼下传播的声脉冲。 管柱安装在钻孔中,并且具有基本上均匀间隔的套环。 流体通过使用由延伸到表面的泵杆驱动的往复泵从井眼或井中泵送。 流体从周围地层接收并收集在钻孔中。 当声脉冲撞击油管套和流体表面时,声脉冲产生反射。 麦克风检测反射以产生返回信号。 该信号被数字化并存储。 数字化信号被处理以检测套环反射的速率,并且存储的信号被以通过套圈的接收速率为中心的通带滤波器进行窄带滤波。 进一步处理数据信号以确定声脉冲和液面反射的发生时间。 窄带滤波信号的每个周期对应于一个轴环反射。 在该信号中,对每个周期进行计数,并且在必要时进行外推以产生从表面延伸到液体表面的套圈数。 这被乘以平均关节长度以产生到液体表面的深度。 数据信号和各种井参数以及井的示意图被显示供操作员使用。 该系统进一步检测液面并将其显示为数据信号上的标记。 操作员可以使用自动确定的标记或将其移动到另一位置。 最后,为操作员提供最佳的操作参数,以实现井的最大生产。

    Rod mounted load cell
    73.
    发明授权
    Rod mounted load cell 失效
    杆安装式称重传感器

    公开(公告)号:US4932253A

    公开(公告)日:1990-06-12

    申请号:US346166

    申请日:1989-05-02

    申请人: James N. McCoy

    发明人: James N. McCoy

    IPC分类号: E21B47/00 G01L1/22 G01L5/10

    摘要: A load cell is mounted on a polished rod between a rod clamp and a hanger bar. The polished rod is connected to a string of sucker rods that drive a reciprocating pump for lifting fluid from a borehole. The load cell includes a tubular body which is fitted with strain gauges for measuring compressional forces applied to the cell. The ends of the tubular body are shaped with annular spherical surfaces which mate with corresponding surfaces on washers at each end. Each of the washers tightly surrounds the polished rod and as a result of the loading on the polished rod, the washers and rod are forced into coaxial alignment with the load cell. Optionally, the polished rod can receive a centralizing sleeve which forces it to be centered within the tubular body of the load cell or the washers at either end thereof. As a result of the centralized placement of the polished rod, the loading across the cross sectional area of the load cell is made substantially uniform thereby enhancing the operation and life of the load cell.

    摘要翻译: 称重传感器安装在杆夹和挂钩杆之间的抛光杆上。 抛光棒连接到一串抽油杆,其驱动用于从井眼提升流体的往复泵。 称重传感器包括管状体,该管状体装配有用于测量施加到电池的压缩力的应变仪。 管状体的端部成形为环形球形表面,其与每端的垫圈上的相应表面配合。 每个垫圈紧紧围绕抛光的杆,并且由于在抛光杆上的装载,垫圈和杆被迫与称重传感器同轴对准。 可选地,抛光的杆可以容纳中心套筒,迫使它在其任一端处在称重传感器的管状体或垫圈中心。 作为抛光棒的集中放置的结果,穿过测力传感器的横截面积的负载基本上是均匀的,从而增强了测力传感器的操作和寿命。

    Centrifugal force downhole gas separator

    公开(公告)号:US10724356B2

    公开(公告)日:2020-07-28

    申请号:US16124323

    申请日:2018-09-07

    申请人: James N. McCoy

    发明人: James N. McCoy

    IPC分类号: E21B43/38

    摘要: A downhole separator performs the function of removing gas from liquids before the liquids enter the well pump. The formation fluid enters into a first, lower, chamber, of the separator and exits through channels to helical passageways on the exterior of the separator body. A shroud surrounds the separator body to serve as an outer wall of the helical passageways. Spiraling movement of the fluid forces the heavier liquids outward and causes separation of the lighter gas. The liquids and gas are ejected from the top of the separator body. The separated liquids drain downward by gravity pull to a liquid reservoir. Liquids in the reservoir are driven upward and flow through channels on the exterior of the separator body into a second, upper chamber, in the separator body which is coupled by tubing to the inlet of the pump.

    PROFILE MEASUREMENT FOR UNDERGROUND HYDROCARBON STORAGE CAVERNS

    公开(公告)号:US20200157933A1

    公开(公告)日:2020-05-21

    申请号:US16741820

    申请日:2020-01-14

    IPC分类号: E21B47/10 E21B47/06

    摘要: Underground storage caverns are widely used for the bulk storage of petroleum products, in particular, crude oil. The caverns are accessed through a casing in a borehole down to the cavern. The lower end of the casing opens into an upper region of the cavern termed the chimney. The chimney provides a transition from the casing into the cavern body. The invention presents a process of injecting a gas into the well while measuring the gas pressure and optionally measuring the volume of injected gas. The gas drives down an interface between the gas and hydrocarbon liquid. By monitoring the rate of change of the gas pressure, and detecting a sudden decrease in the rate of change, it can be determined when the interface has been driven down to the region immediately below the bottom of the casing at the upper end of the chimney.

    METHOD FOR DETERMINING THE PROFILE OF AN UNDERGROUND HYDROCARBON STORAGE CAVERN

    公开(公告)号:US20170234713A1

    公开(公告)日:2017-08-17

    申请号:US15584962

    申请日:2017-05-02

    申请人: James N. McCoy

    发明人: James N. McCoy

    摘要: Underground storage caverns are used for the bulk storage of hydrocarbon liquids, such as crude oil and gases, such as natural gas. The cavern is accessed through a bore hole which has casing and, for some bore holes, internal tubing with an annulus between the casing and tubing. The upper end of the cavern has a roughly cylindrical region termed the chimney. In order to check it for physical integrity, it is necessary to measure the profile of the chimney. This is also referred to as conducting a survey of the cavern. The cavern typically has hydrocarbon liquid above brine up to the surface. An inert gas can be injected above the hydrocarbon liquid to form an interface. The profile is conducted by driving the gas/liquid interface downward with gas pressure to a reference level determined by sequentially transmitting acoustic pulses to locate the reference level. Gas is injected to increase the pressure by a predetermined value and thereby drive down the interface by a known distance. The volume of the gas injected is used together with the known distance to determine a profile of the chimney. The process of injection of gas to increase the pressure by the predetermined value and measurement of the volume is repeated sequentially to determine the chimney profile at progressively lower regions, thereby producing an extended profile of the chimney.

    Gas separator with integral pump seating nipple
    79.
    发明授权
    Gas separator with integral pump seating nipple 有权
    气体分离器,带有一体式泵座

    公开(公告)号:US09366127B1

    公开(公告)日:2016-06-14

    申请号:US13766916

    申请日:2013-02-14

    申请人: James N. McCoy

    发明人: James N. McCoy

    IPC分类号: E21B43/38

    摘要: An oil well gas separator that includes a seating nipple for a downhole pump. An inner and outer barrel define a fluid passage and a separation annulus with the well casing. A separated well liquid passage is directly connected to the pump inlet to reduce dissolution of gas from the separated liquid. An isolation means is provided to isolate the separation annulus from the well casing fluids.

    摘要翻译: 一种油井气体分离器,包括一个用于井下泵的座椅接头。 内筒和外筒限定了流体通道和与套管的分离环。 分离的井液通道直接连接到泵入口以减少来自分离液体的气体的溶解。 提供隔离装置以将分离环与井套管流体隔离。