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公开(公告)号：US4253530A
公开(公告)日：1981-03-03
申请号：US82848
申请日：1979-10-09
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。
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公开(公告)号：US4010012A
公开(公告)日：1977-03-01
申请号：US546249
申请日：1975-02-03
申请人： Phil H. Griffin, III , William A. Rehm , Martin L. Talley , Martin J. Sharki , Woodrow E. Renfro
发明人： Phil H. Griffin, III , William A. Rehm , Martin L. Talley , Martin J. Sharki , Woodrow E. Renfro
CPC分类号： B01D19/00 , B01D19/0068 , E21B21/067
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。
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公开(公告)号：US4088457A
公开(公告)日：1978-05-09
申请号：US754854
申请日：1976-12-27
CPC分类号： F04D29/606 , B01D19/0047 , E21B21/067
摘要： A unique degasifying system for removing entrapped gas bubbles from a viscous drilling fluid utilizes a hollow shaft pump having a hollow impeller, with a prerotation chamber and impeller shroud below the impeller; a spray vessel having a continuous sheet radial spray head and vacuum creating means therein; a vacuum conduit connecting the vacuum creating means to the hollow shaft of the pump; and an enclosed degasifying trough connected to the spray vessel and having fluidic seal means at each end, with a gas exhaust conduit connected thereto.
摘要翻译： 用于从粘性钻井液中去除夹带的气泡的独特的脱气系统利用具有中空叶轮的中空轴泵，在叶轮下方具有预旋转室和叶轮罩; 喷雾容器，其中具有连续的片状径向喷头和真空产生装置; 将真空产生装置连接到泵的空心轴的真空管道; 以及连接到喷雾容器并且在每个端部具有流体密封装置的封闭除气槽，其中连接有排气导管。
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公开(公告)号：US4420391A
公开(公告)日：1983-12-13
申请号：US310007
申请日：1981-10-13
申请人： Martin J. Sharki
发明人： Martin J. Sharki
摘要： A vibrating screen used for the fine screening of solids from a slurry containing solids includes a base, a screen box having feed end and discharge end with said screen box being resiliently supported on the base, and a drive for vibrating said screen in a generally longitudinal direction. The screen includes at least two overlying layers of relatively fine mesh screen cloth. A tensioning device is connected to one end of the screen cloth for tensioning the screen cloth in a direction parallel to the direction of motion of the screen cloth.
摘要翻译： 用于从含有固体的浆料中精细筛选固体的振动筛包括底座，具有进料端的筛箱和具有弹性地支撑在基座上的所述筛箱的排出端，以及用于以大致纵向的方式振动所述筛网的驱动装置 方向。 屏幕包括至少两个相对细的网眼布的上覆层。 张紧装置连接到筛布的一端，用于沿着与丝网的运动方向平行的方向张紧筛布。
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公开(公告)号：US4269567A
公开(公告)日：1981-05-26
申请号：US754857
申请日：1976-12-27
CPC分类号： F04D29/606 , B01D19/0047 , E21B21/067 , F04D7/04
摘要： Gas laden drilling mud is effectively handled by a centrifugal pump system which allows the flow of released gases from the drilling mud to move in the same axial direction as the mud flow through the pump; whereupon the released gases may be conducted to safe disposal areas. A hollow-centered impeller is driven by a hollow shaft through which the gases may be withdrawn. A prerotation chamber and impeller shroud below the impeller admit drilling mud into the impeller housing, providing the drilling mud with initial rotational velocity through a reduced radius, and further establishing a central opening through which gases escaping from the drilling mud will be released due to centrifugal forces on the mud. Released gases may then be removed through the central passage in the hollow shaft, which shaft may be provided with external means for preventing upward flow of fluid therearound.
摘要翻译： 含气钻井泥浆由离心泵系统有效地处理，允许来自钻井泥浆的释放气体的流动沿着与通过泵的泥浆流相同的轴向移动; 释放的气体可能被传导到安全的处置区域。 中空的叶轮由空心轴驱动，气体可以从中空轴被抽出。 在叶轮下方的预旋转室和叶轮护罩允许钻井泥浆进入叶轮壳体，为钻井泥浆提供初始旋转速度通过减小的半径，并进一步建立中心开口，通过该中心开口，从钻井泥浆逸出的气体将由于离心而被释放 泥土上的力量 释放的气体然后可以通过空心轴中的中心通道去除，该轴可以设置有用于防止其周围的流体向上流动的外部装置。
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公开(公告)号：US4143880A
公开(公告)日：1979-03-13
申请号：US889323
申请日：1978-03-23
CPC分类号： E21B33/085 , F16J15/40 , Y10S277/927
摘要： An improved rotary drill head is provided having two lip seals installed in a seal cavity to provide a long lasting dynamic seal. The first lip seal is installed with the heel first and the second lip seal is installed with the lip first. Lubricant is maintained between the two seals at a pressure greater than the operating pressure of the rotary drill head. The lubricant pressure energizes the two lip seals. The abrasive fluid from the borehole is prevented from leaking past the seals because of the pressure differential. An infinitesimal amount of lubricant will leak past the lips of the seals thereby lubricating the seal.
摘要翻译： 提供了一种改进的旋转钻头，其具有安装在密封腔中的两个唇形密封件，以提供持久的动态密封。 第一唇形密封件首先安装有鞋跟，并且第一唇形密封件首先安装有唇缘。 润滑剂以大于旋转钻头的操作压力的压力保持在两个密封件之间。 润滑剂压力激励两个唇形密封。 由于压力差，来自钻孔的磨料流体被防止从密封件泄漏。 无限量的润滑剂将渗漏通过密封件的唇缘，从而润滑密封。
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