公开(公告)号：US5624182A

公开(公告)日：1997-04-29

申请号：US394476

申请日：1995-02-27

申请人： Michael P. Dearing, Sr. ,  Bruce A. Vicknair ,  Randall R. Price ,  Robert A. Baten ,  Greg L. Cedillo ,  John H. Craig

发明人： Michael P. Dearing, Sr. ,  Bruce A. Vicknair ,  Randall R. Price ,  Robert A. Baten ,  Greg L. Cedillo ,  John H. Craig

IPC分类号： B01F3/12 ,  B01F15/04 ,  B28C7/02 ,  B29C33/44 ,  E21B47/00

CPC分类号： E21B47/0005 ,  B01F15/00155 ,  B01F15/00233 ,  B01F15/0408 ,  B28C7/02 ,  B28C7/024 ,  B29C33/444 ,  B01F2003/125

摘要： An automatic cementing system and method are disclosed for precisely controlling the density of a slurry during a continuously mixed cement application. The system includes an input water line and a dry cement hopper for supplying water and dry cement, respectively, to a mixing chamber. The mixing chamber includes two chambers, Chamber A and Chamber B, for thoroughly mixing the water and cement together to form a cement slurry. Chamber B includes a level sensor for measuring the change in slurry level. The input line includes a pump for supplying the water to the mixing chamber, and a flow meter for measuring the rate at which the water is supplied. Similarly, the hopper includes a rotary valve for regulating the rate at which the dry cement is supplied to the mixing chamber and a speed sensor for measuring the speed of the rotary valve. A discharge line with a discharge pump and a discharge flow meter receives and discharges cement slurry. A recirculation line is included for density control during initialization. A system controller receives operational parameters from the operator, including desired slurry density, mix water density and dry cement density. Once the rate of the input pump is set, the controller monitors the output from the level sensor in Chamber B and adjusts the rotary valve until the level of slurry in Chamber B is constant. At that time, the amount of water leaving the system as slurry is calculated by the controller, and the controller then sets the rate of the input pump based upon this calculation.

摘要翻译： 公开了一种用于在连续混合的水泥应用中精确控制浆料的密度的自动固井系统和方法。 该系统包括输入水线和用于将水和干燥水泥分别供应到混合室的干燥水泥料斗。 混合室包括两个室，室A和室B，用于将水和水泥充分混合在一起以形成水泥浆。 室B包括用于测量浆料水平变化的液位传感器。 输入线包括用于将水供应到混合室的泵和用于测量供应水的速率的流量计。 类似地，料斗包括用于调节干混泥浆供应到混合室的速率的旋转阀和用于测量旋转阀的速度的速度传感器。 具有排放泵和排放流量计的排放管接收和排出水泥浆。 在初始化期间，包括再循环管线用于密度控制。 系统控制器从操作者接收操作参数，包括所需浆料密度，混合水密度和干燥水泥密度。 一旦设定了输入泵的速率，控制器便监控舱室B中水位传感器的输出，并调整旋转阀，直到舱室B中浆液的水平恒定。 此时，由控制器计算离开系统的水量，控制器然后根据该计算设定输入泵的速率。

公开(公告)号：US5775803A

公开(公告)日：1998-07-07

申请号：US791936

申请日：1997-01-31

申请人： Clifford Stanley Montgomery ,  Michael P. Dearing, Sr. ,  Bruce A. Vicknair ,  Randall R. Price ,  Robert A. Baten ,  Greg L. Cedillo ,  John Howard Craig

发明人： Clifford Stanley Montgomery ,  Michael P. Dearing, Sr. ,  Bruce A. Vicknair ,  Randall R. Price ,  Robert A. Baten ,  Greg L. Cedillo ,  John Howard Craig

IPC分类号： B01F15/04

CPC分类号： B01F3/1271 ,  B01F13/103 ,  B01F15/00136 ,  B01F15/00155 ,  B01F15/00233 ,  B01F15/0234 ,  B01F15/042 ,  B01F15/0429 ,  B01F3/1221 ,  B01F5/106 ,  B28C7/024 ,  B28C7/0418 ,  B28C7/044 ,  B28C7/0454 ,  G05D21/02 ,  B01F2215/0047

摘要： An automatic cementing system and method are disclosed for precisely controlling the density of a slurry during a continuously mixed cement application. The system includes an input water line and a dry cement hopper for supplying water and cement, respectively, to a mixing chamber. The mixing chamber includes two chambers, Chamber A and Chamber B, for thoroughly mixing the water and cement together to form a cement slurry. Chamber B includes a level sensor for measuring the change in slurry level. The input line includes a pump for supplying the water to the mixing chamber, and a flow meter for measuring the rate at which the water is supplied. Similarly, the hopper includes a slide-gate valve for regulating the rate at which the dry cement is supplied to the mixing chamber. A discharge line with a discharge pump and a discharge flow meter receives and discharges cement slurry. A recirculation line is included for density control during initialization. A system controller receives operational parameters from the operator, including desired slurry density, mix water density, and dry cement density. As the slurry discharge rate increases to the desired value, the mix water flow rate increases to maintain the calculated volume percentage of mix water in the discharge slurry constant. The tub level drops, causing the slide-gate valve to open and add cement, raising the tub level to the setpoint level and maintaining an accurate discharge slurry density.

摘要翻译： 公开了一种用于在连续混合的水泥应用中精确控制浆料的密度的自动固井系统和方法。 该系统包括输入水线和用于将水和水泥分别供应到混合室的干燥水泥料斗。 混合室包括两个室，室A和室B，用于将水和水泥充分混合在一起以形成水泥浆。 室B包括用于测量浆料水平变化的液位传感器。 输入线包括用于将水供应到混合室的泵和用于测量供应水的速率的流量计。 类似地，料斗包括用于调节干混泥浆供应到混合室的速率的滑动闸阀。 具有排放泵和排放流量计的排放管接收和排出水泥浆。 在初始化期间，包括再循环管线用于密度控制。 系统控制器从操作者接收操作参数，包括所需浆料密度，混合水密度和干燥水泥密度。 当浆料排出速率增加到期望值时，混合水流量增加以保持排出浆料中混合水的计算体积百分比恒定。 浴缸水平下降，导致滑闸阀打开并添加水泥，将浴缸水平提高到设定值，并保持准确的排出浆料密度。

公开(公告)号：US5853245A

公开(公告)日：1998-12-29

申请号：US942128

申请日：1997-10-01

申请人： Randall R. Price

发明人： Randall R. Price

IPC分类号： E21B10/08 ,  E21B10/20 ,  E21B10/22

CPC分类号： E21B10/08 ,  E21B10/20

摘要： A novel split threaded ring bearing member for rolling cutter drill bits with at least a portion of its threads having a different pitch than its mating threads is disclosed. The pitch difference is designed so that the threaded ring can be seated or otherwise located precisely with respect to the other bearing elements within the drill bit to effectively control the axial displacement of the rolling cutter on the bearing spindle within a given tolerance range. Upon assembly, the difference in thread pitch causes the opposite, opposing mating thread flanks to engage, effectively applying a tensile or compressive force to a portion of the threaded ring bearing member, which gradually increases as the assembly is tightened. The result is an improved rolling cutter drill bit with a threaded ring cutter bearing system with excellent resistance to back-off which will not allow significant radial movement between the engaged threads, even if some back-off of the threads occurs.

摘要翻译： 公开了一种用于轧制切割钻头的新颖的分裂螺纹环承载部件，其螺纹的至少一​​部分具有与其配合螺纹不同的螺距。 间距差被设计成使得螺纹环可以相对于钻头内的其它轴承元件精确地就位或以其他方式定位，以在给定的公差范围内有效地控制滚动切割器在轴承主轴上的轴向位移。 在组装时，螺纹间距的差异导致相反的相对的匹配螺纹侧面接合，有效地对螺纹环承载构件的一部分施加拉伸或压缩力，该部分在组件被紧固时逐渐增加。 结果是一种改进的滚动式钻头，其具有优异的抵抗力的螺纹环形切割器轴承系统，其不会导致接合螺纹之间的显着的径向移动，即使线的某些退回发生。