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公开(公告)号：US3827122A
公开(公告)日：1974-08-06
申请号：US32491973
申请日：1973-01-19
Applicant: DRESSER IND
Inventor： DOUGLAS B
CPC classification number: B29C45/14 , F16K25/02 , F16K27/0245 , Y10T29/49417 , Y10T29/4998 , Y10T137/7911
Abstract: A check valve cage is fabricated by injecting a reinforced thermal setting plastic through a channel extending along the central longitudinal axis of a cylindrical body. A form pin is inserted through a coaxial longitudinal bore at the other end of said cylindrical body, said bore having an increased diameter central portion for receiving the injected thermoplastic material. After the plastic material has set, lateral flow passages are formed in the wall of the cylindrical body. Shallow drilled holes within the central cavity of the body, upon being filled with the injected plastic material, prevent rotation of the plastic lining of the cage assembly.
Abstract translation: 通过沿着圆柱体的中心纵向轴线延伸的通道注入增强的热定形塑料来制造止回阀保持架。 成形销在所述圆柱体的另一端通过同轴纵向孔插入，所述孔具有增加的直径中心部分，用于接收注入的热塑性材料。 在塑料材料固定之后，在圆柱体的壁上形成横向流动通道。 在注入塑料材料之后，身体中心腔内的浅钻孔防止笼组件的塑料内衬旋转。
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公开(公告)号：US3801235A
公开(公告)日：1974-04-02
申请号：US3801235D
申请日：1972-03-20
Applicant: DRESSER IND
Inventor： DOUGLAS B
Abstract: Adjacent discrete 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 percent of its one year creep, the plunger assembly is centerless ground to the desired outside diameter. In addition to the discrete 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 increases 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: 具有交替的左右螺旋螺旋的相邻离散柱塞部分松散地安装在圆柱形心轴上，圆柱形心轴的一端具有带球和座位的螺纹阀笼，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。 在大约24小时之后，材料爬行了其一年蠕变的大约75％，柱塞组件是无心磨削到所需的外径。
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公开(公告)号：US3851997A
公开(公告)日：1974-12-03
申请号：US44713074
申请日：1974-03-01
Applicant: DRESSER IND
Inventor： DOUGLAS B
CPC classification number: E21B43/14 , E21B43/122 , E21B43/123 , F04F1/18 , Y10T137/2695
Abstract: An automatically operated, pressure responsive gas lift injection valve for use in a dual zone string utilizes a pressure operated switching valve for delivering injection gas to the tubing string having the highest column of fluid. The switching valve is responsive to the tubing pressure in each of the two production strings and, sensing the higher of the two tubing pressures, opens that string to lift gas injected through the casing annulus.
Abstract translation: 用于双区域串的自动操作的压力响应气举注射阀利用压力操作的切换阀，用于将喷射气体输送到具有最高流体列的油管柱。 切换阀响应于两个生产线中的每一个中的管道压力，并且检测两个管道压力中的较高者，打开该管柱以提升通过套管环空气注入的气体。
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公开(公告)号：US3854846A
公开(公告)日：1974-12-17
申请号：US36588173
申请日：1973-06-01
Applicant: DRESSER IND
Inventor： DOUGLAS B
CPC classification number: E21B37/06 , E21B47/0008 , F04B49/02 , 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 fifty percent of the time because fifty percent of the time is taken on the downstroke of the pumping assembly when no production is occurring. 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 pumpup 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.
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的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，阀门应该打开百分之五十的时间，因为当没有生产发生时，五分之一的时间是在泵组件的下冲程中进行的。 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。
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公开(公告)号：US3731740A
公开(公告)日：1973-05-08
申请号：US3731740D
申请日：1971-05-24
Applicant: DRESSER IND
Inventor： DOUGLAS B
IPC: E21B33/129 , E21B33/1295 , E21B23/04
CPC classification number: E21B33/129 , E21B33/1294 , E21B33/1295
Abstract: A well packer of the type which is set by hydraulic pressure injected through the tubing string, having a setting chamber between the pistons therein which actuate the packer, wherein one of the pistons is floating while the packer is being lowered to compensate for thermal expansion or contraction and pressure differentials encountered as the packer is lowered in the well in order to prevent undue pressure from being applied to the pistons which could cause the shearing of shear pins holding the packer in unset position which would prematurely set the packer.
Abstract translation: 这种类型的密封装置由通过管柱注入的液压设定，在其中的活塞之间具有致动封隔器的设置室，其中一个活塞在打包机降低期间浮动以补偿热膨胀或 因为封隔器在井中下降而遇到的收缩和压力差，以便防止不适当的压力施加到活塞上，这可能导致剪切销将剪切销保持在未设定的位置，这将使过大地设置封隔器。
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Patent Agency Ranking6.发明授权
公开(公告)号：US3800385A
公开(公告)日：1974-04-02
申请号：US3800385D
申请日：1972-03-20
Applicant: DRESSER IND
Inventor： DOUGLAS B
CPC classification number: F16J1/005 , F04B53/143 , F05C2225/08 , Y10T29/49236 , Y10T29/49861 , Y10T29/49863
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 apprxoimately twenty-four hours, during which the material creeps about 75 percent 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。 在大约二十四小时之后，材料爬行了其一年蠕变的大约75％，柱塞组件无心磨削到所需的外径。
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公开(公告)号：US3724486A
公开(公告)日：1973-04-03
申请号：US3724486D
申请日：1969-09-19
Applicant: DRESSER IND
Inventor： DOUGLAS B
CPC classification number: E21B43/38 , B01D17/02 , Y10T137/3062 , Y10T137/3127 , Y10T137/7342
Abstract: Liquid is separated from gas in a well bore using a liquid container which floats in the well bore liquid and operates a valve which communicates with the interior of the tubing of the well. The valve is resiliently and movably mounted on the container so that the container must move a substantial distance to overcome the resiliency of the mounting and open the interior of the tubing to the liquid in the container.
Abstract translation: 使用在井眼液体中漂浮的液体容器将液体与井的气体分离，并操作与井的管道内部连通的阀。 阀被弹性地和可移动地安装在容器上，使得容器必须移动相当大的距离以克服安装件的弹性并将管道的内部打开到容器中的液体。
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公开(公告)号：BR7404525D0
公开(公告)日：1975-01-07
申请号：BR452574
申请日：1974-05-31
Applicant: DRESSER IND
Inventor： DOUGLAS B
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 fifty percent of the time because fifty percent of the time is taken on the downstroke of the pumping assembly when no production is occurring. 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.
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