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1.发明授权
公开(公告)号：US3915602A
公开(公告)日：1975-10-28
申请号：US43081174
申请日：1974-01-04
Applicant: DRESSER IND
Inventor： DOUGLAS BOBBY L
CPC classification number: F16J1/005 , F04B53/14 , F05C2225/08
Abstract: Adjacent plunger sections having alternate right and left hand spiral threads are loosely fitted on a cylindrical mandrel, one end of which has a threaded valve cage with a ball and seat therein, a shoulder section being threadedly engaged with the other end of the mandrel. The plunger sections are compressed by further increasing rotational pressure to the threaded shoulder section. Plunger sections are essentially nylon (polyamide) having a fiber glass filler material. Because of the creep of the material, end compression is applied in an amount which causes a squeeze of approximately 1/32 inch per foot of plunger section to purposely induce creep in the manufacturing process. After approximately 24 hours, during which the material creeps about 75% of its one year creep, the plunger assembly is centerless ground to the desired outside diameter. In addition to the plunger sections being alternately right and left hand threaded, each section has its end portion unthreaded. The unthreaded end portion provides for pressure change and also a space for sand to fall out. The use of the unthreaded section and the alternately changing thread directions causes flow reversals and turbulent flow conditions which reduce slippage rate and increase the efficiency of the pump. The alternate right and left hand portions reduce the torque in the system and also reduce the flow rate through the spiral by causing direction changes.
Abstract translation: 相邻的具有交替的左右螺旋螺旋的柱塞部分松散地安装在圆柱形心轴上，其一端具有带球和座的螺纹阀笼，肩部与心轴的另一端螺纹接合。 柱塞部分通过进一步增加到螺纹肩部的旋转压力被压缩。 柱塞部分基本上是具有玻璃纤维填充材料的尼龙（聚酰胺）。 由于材料的蠕变，端部压缩的施加量使得每英尺约1/32英寸的柱塞部分的挤压在制造过程中故意地引起蠕变。 大约24小时后，材料爬行一年大约75％的蠕变，柱塞组件无心磨削到所需的外径。
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公开(公告)号：US3888273A
公开(公告)日：1975-06-10
申请号：US43505174
申请日：1974-01-21
Applicant: DRESSER IND
Inventor： DOUGLAS BOBBY L
CPC classification number: E21B43/123 , Y10T137/2934
Abstract: A gas lift valve for use in oil wells utilizes a variable-area flow orifice with the amount of flow area being inversely proportional to the difference in pressure between the casing and the tubing.
Abstract translation: 用于油井的气举阀利用可变面积流量孔，流量面积与壳体和管道之间的压力差成反比。
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公开(公告)号：US3918843A
公开(公告)日：1975-11-11
申请号：US45285174
申请日：1974-03-20
Applicant: DRESSER IND
Inventor： DOUGLAS BOBBY L , WILLIAMS ROBERT C
CPC classification number: F04B49/106 , E21B47/0008 , F04B47/02 , F04B49/02 , F04B49/065 , F04B2201/02071 , F04B2205/13 , F04B2205/16
Abstract: A valve in the production flow line of an oil well closes a reed switch indicative of fluid being pumped through the line. The switch closure activates a first oscillator whose count is compared with a variable frequency oscillator having a frequency of approximately one half that of the first oscillator. The comparison is made over a given period of time to ascertain the percentage of time the valve has been open and passing fluid. Theoretically, the valve should be open 50 percent of the time because 50 percent of the time is taken on the downstroke of the pumping assembly when no production is occurring. The integrated timer is adjusted to shut down the system when the percentage of time the valve is open drops to the preselected amount, usually equal to or less than 50 percent. In response to the integration timer producing a signal, a shutdown timer is turned on which restarts the cycle after a preselected amount of time. When the system is restarted by the shutdown timer, a pump-up timer is turned on which is adjusted to allow for a desired pump-up time. As the pump-up timer is allowing the system to recycle, the integration timer is reset and the recycling is completed if the requirements of the integration timer are met. Otherwise, the unit is shut down again and the system recycled. A variable electronic scaler is connected to the output of the integration timer which monitors the output signals from the integrator timer. After the preset number of times the integration timer produces a signal, the scaler turns off the whole system. It can then be restarted manually. This provides a safety device for equipment failure such as breaking of the sucker rod. Means are also provided for recording the various timed cycles and also for monitoring the number of signals transmitted to the scaler, thus being indicative of the number of times the system has automatically shut down.
Abstract translation: 油井生产流水线中的阀门关闭一个指示流经泵管的流体的簧片开关。 开关闭合激活第一振荡器，其计数与具有大约是第一振荡器的一半频率的可变频率振荡器进行比较。 在给定的时间内进行比较，以确定阀门打开和通过流体的时间百分比。 理论上，阀门应该打开50％的时间，因为在没有生产的时候，50％的时间是在泵组件的下冲程中进行的。 当阀门打开的时间百分比下降到预先选定的数量时，通常调节关闭系统的时间，通常等于或小于50％。 响应于产生信号的积分定时器，关闭定时器被打开，在预选的时间量之后重新启动循环。 当系统由关机定时器重新启动时，启动一个抽油定时器，该定时器被调节以允许期望的泵送时间。 由于抽油机定时器允许系统回收，如果满足积分计时器的要求，则积分计时器被复位，并且回收完成。 否则，本机再次关闭，系统回收。 可变电子缩放器连接到积分计时器的输出，该定时器监视来自积分器定时器的输出信号。 在集成定时器产生信号的预设次数之后，缩放器关闭整个系统。 然后可以手动重启。 这提供了用于设备故障的安全装置，例如抽油杆的断裂。 还提供了用于记录各种定时周期并且还用于监视发送到缩放器的信号的数量的装置，因此指示系统自动关闭的次数。
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公开(公告)号：US3417774A
公开(公告)日：1968-12-24
申请号：US55708166
申请日：1966-06-13
Applicant: DRESSER IND
Inventor： DOUGLAS BOBBY L , FOTIADES STEPHEN M
IPC: E21B43/12
CPC classification number: E21B43/123 , Y10T137/2934
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公开(公告)号：US3861646A
公开(公告)日：1975-01-21
申请号：US30155772
申请日：1972-10-27
Applicant: DRESSER IND
Inventor： DOUGLAS BOBBY L
CPC classification number: F16K15/021 , B29C45/14344 , B29C2045/1436 , B29C2045/14459 , B29L2031/7506 , F04B53/102
Abstract: A valve body is fabricated by injecting rubber through a channel extending along the central longitudinal axis of a cylindrical body having a conical-shaped end portion and out through a pair of transverse channels to form a flexible resilient sealing surface having a flexible lip, the resilient sealing surface being formed at a slightly greater angle than the adjacent metal frusto-conical sealing surface on the body. The central and transverse channels used for injecting the rubber serve as a mechanical lock between the resilient sealing surface and the metal body of the valve. In addition, the resilient sealing surface is chemically bonded to the metal body of the valve. A plastic valve guide having a continuous ring on one end and a centrally oriented guide portion having three arcuate surfaces equally spaced around the circumference of the valve body are arranged such that the valve body can move longitudinally within the valve guide.
Abstract translation: 通过沿着具有圆锥形端部的圆柱形主体的中心纵向轴线延伸的通道并通过一对横向通道将橡胶注入橡胶制成阀体，以形成具有柔性唇缘的柔性弹性密封表面，弹性 密封表面以比相邻的金属截头圆锥形密封表面稍大的角度形成。 用于注射橡胶的中心和横向通道用作弹性密封表面和阀的金属体之间的机械锁。 此外，弹性密封表面与阀的金属体化学结合。 具有在一端具有连续环的塑料阀引导件和具有围绕阀体的圆周等距间隔开的三个弧形表面的居中定向的引导部分被布置成使得阀体可以在阀引导件内纵向移动。
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Patent Agency Ranking
公开(公告)号：US3626505A
公开(公告)日：1971-12-07
申请号：US3626505D
申请日：1969-08-28
Applicant: DRESSER IND
Inventor： DOUGLAS BOBBY L
Abstract: A wire line stripper for use in conjunction with the movement of wire line supported tools into and out of well bores. The stripper includes a housing encircling the wire line, a sealing element located in the housing and having a surface thereon in engagement with the wire line. The sealing element is constructed so that the pressure responsive means continues to maintain the seal member in sealing engagement with the wire line even though considerable wear occurs on the seal surface that is in engagement with the wire line.
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公开(公告)号：US3580333A
公开(公告)日：1971-05-25
申请号：US3580333D
申请日：1969-09-11
Applicant: DRESSER IND
Inventor： DOUGLAS BOBBY L
CPC classification number: E21B43/38 , E21B43/122
Abstract: A device for removing liquid from a well bore which utilizes two valve means. One valve admits liquid to the tubing and the other valve admits gas to the tubing to lift liquid in the tubing to the earth''s surface.
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公开(公告)号：US3559671A
公开(公告)日：1971-02-02
申请号：US3559671D
申请日：1968-08-26
Applicant: DRESSER IND
Inventor： DOUGLAS BOBBY L
CPC classification number: E21B43/123 , Y10T137/2934
Abstract: A gas lift valve that is connected in a tubing string and disposed in a cased well bore. The gas lift valve provides communication between the casing and tubing whereby gas in the annular space therebetween can be injected into the tubing to aid in producing oil from the well. The gas lift valve includes a valve member that is responsive to pressure within the tubing for movement between open and closed positions to control the flow of gas into the tubing.
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公开(公告)号：CA1052459A
公开(公告)日：1979-04-10
申请号：CA233118
申请日：1975-08-08
Applicant: DRESSER IND
Inventor： DOUGLAS BOBBY L
Abstract: OIL WELL PUMPOFF CONTROL SYSTEM. Various functions of a production oil well are monitored to cause a switch closure for each normal cycle of the pump. Alternatively, the level of the fluid within the well is monitored to cause the switch closure. The switch closure activates a first oscillator whose count is compared with a variable frequency oscillator over a given period of time to ascertain the percentage of time of normal operation. The integrated timer is adjusted to shut down the system when the percentage of time drops to or below the preselected amount. In response to the integration timer signal, a shutdown timer is turned on which restarts the cycle after a preselected amount of time. When the system is restarted by the shutdown timer, a pump-up timer is turned on which is adjusted to allow for a desired pump-up time. As the pump-up timer is allowing the system to recycle, the integration timer is reset and the recycling is completed if the requirements of the integration timer are met. Otherwise, the unit is shut down again and the system recycled. A variable electronic scaler is connected to the output of the integration time. which monitors the output signals from the integrator timer. After the preset number of times the integration timer produces a signal, unless reset by a normal cycle, the scaler turns off the whole system. It can then be restarted manually. -1a-
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公开(公告)号：CA1039831A
公开(公告)日：1978-10-03
申请号：CA225144
申请日：1975-04-22
Applicant: DRESSER IND
Inventor： DOUGLAS BOBBY L
Abstract: OIL WELL PUMPOFF CONTROL SYSTEM UTILIZING INTEGRATION TIMER. A valve in the production flow line of an oil well closes a reed switch indicative of fluid being pumped through the line. The switch closure activates a first oscillator whose count is compared with a variable frequency oscillator having a frequency of approximately one-half that of the first oscillator. The comparison is made over a given period of time to ascertain the percentage of time the valve has been open and passing fluid. Theoretically, the valve should be open approximately fifty percent of the time because almost that much time is taken on the downstroke of the pumping assembly when no production is occurring. The integrated timer is adjusted to shut down the system when the percentage of time the valve is open drops to the preselected amount, usually equal to or less than around fifty percent. In response to the integration timer producing a signal, a shutdown timer is turned on which restarts the cycle after a preselected amount of time. The length of shutdown time for the pumping unit is preset according to the well fill-in rate. When the system is restarted by the shutdown timer, a pump-up timer is turned on which is adjusted to allow for a desired pump-up time. As the pump-up timer is allowing the system to recycle, the integration timer is reset and the recycling is completed if the requirements of the integration timer are met. Otherwise, the unit is shut down again and the system recycled. A variable electronic scaler is connected to the output of the integration timer which monitors the output signals from this timer.
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