CN101448579A - 从载有固体的液体中分离固体的设备和方法 - Google Patents
从载有固体的液体中分离固体的设备和方法 Download PDFInfo
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Abstract
本发明公开了一种用于从载有固体的钻井泥浆(14)中分离固体的设备和方法,所述方法包括以下步骤:将载有固体的钻井泥浆导入筛(13)的第一侧,钻井泥浆经过所述筛(13),被筛过的钻井泥浆位于所述筛(13)的另一侧,其特征在于,振荡托盘(18)位于钻井泥浆中并且与所述筛隔开,所述振荡托盘使钻井泥浆进行运动,从而有助于在所述筛(13)中筛分所述载有固体的钻井泥浆。
Description
技术领域
本发明涉及从载有固体的液体中分离固体的设备和方法,尤其但不排他地涉及从载有固体的钻井泥浆中分离固体的设备和方法。
背景技术
在油井或气井构造中钻井眼时,钻头布置在钻柱的端部,所述钻柱旋转以钻出穿过地层的井眼。称作“钻井泥浆”的钻井流体经由钻柱被泵送到钻头以润滑钻头。钻井泥浆还用于将钻头产生的钻屑或其他固体通过形成于钻柱和井眼之间的环状空间输送至地面。精确控制钻井泥浆的密度以防止井眼倒塌和确保最佳地执行钻进操作。钻井泥浆的密度影响钻头的钻进速度。在可能引起使井眼倒塌时,通过调节钻井泥浆的密度可以改变钻进速度。钻井泥浆还可以输送用于密封井眼的多孔部分的井漏材料(lost circulation materials)。还可以根据被钻地层的类型调节钻井泥浆的酸度。钻井泥浆尤其包含昂贵的以合成油为基础的润滑剂,因此,通常回收和重复使用用过的钻井泥浆,但是这尤其需要从钻井泥浆中去除固体。这通过对钻井泥浆进行处理来实现。处理的第一部分是从载有固体的钻井泥浆中分离固体。这利用振动分离器至少部分地实现,所述分离器例如为US 5,265,730、WO96/33792和WO 98/16328中公开的泥浆振动筛。可以使用例如离心机和旋液分离器的其它处理设备进一步清洁固体的泥浆。固体包含在污染物和残余物中。在井眼中通常有30到100m3的钻井流体处于循环。
对所产生的固体(在此称作“钻井钻屑”)进行处理以从固体中去除大体上全部残余物和污染物。固体随后可以在固体来自的环境中被丢弃在地下掩埋场中或者倾泄在海洋中。可选地,固体可以用作建筑工业中的材料或者具有其他工业用途。
泥浆振动筛通常包括具有一个敞开排出端和实壁进给端的开底篮。在篮的敞开底部上布置有多个矩形筛。所述篮布置在位于容纳回收的钻井泥浆的接收器上方的弹簧上。箕斗(skip)或沟槽(ditch)设置在篮的敞开排出端的下面。具有驱动转子的马达固定到篮上,所述驱动转子设置有偏置配重块。在使用中,马达使转子和偏置配重块旋转,从而导致篮和固定于其上的筛发生震动。载有固体的泥浆在篮的进给端被引导到筛上。振动使固体沿着筛朝向敞开排出端移动。钻井泥浆经过所述筛。回收的钻井泥浆容纳在用于进一步处理的接收器中,固体通过篮的排出端上方进入沟槽或箕斗。
筛通常为两种类型之一:钩带式和预张紧式。
钩带式筛包括处于夹层结构的若干个矩形网层,通常包括一层或两层细小等级网以及具有较大网孔和较粗金属线的支撑网。网层通过细长钩状带连接在每个侧边。在使用中,细长钩钩在沿泥浆振动筛的每个侧面布置的张紧装置上。泥浆振动筛还包括冠状支撑构件组,其沿泥浆筛的篮长度延伸,网层在所述篮上方张紧。GB-A-1,526,663中公开了这类筛的实例。支撑网可以设置有带孔板或由带孔板代替。
预张紧式筛包括若干个矩形网层,通常包括一层或两层细小等级网以及具有较大网孔和较粗金属线的支撑网。网层在包括矩形角铁框架的刚性支撑件上预张紧并附着于其上。筛随后插入到布置于泥浆振动筛篮中的C-槽形导轨内。GB-A-1,578,948中公开了这种筛的实例,GB-A-2,176,424中公开了适于接收预张紧式筛的泥浆振动筛的实例。
WO 01/76720和NO 303323中公开了从载有固体的钻井泥浆中分离固体的可选设备。所述设备包括可旋转滚筒,所述滚筒围绕其纵向轴线旋转。滚筒具有入口端和排出端并且设置有内部同心带孔滚筒。具有螺旋叶片的同心螺杆布置在带孔滚筒内部,以便在滚筒围绕其纵向轴线旋转时使载有固体的钻井泥浆从入口端向排出端流动。载有固体的钻井泥浆被拖向滚筒的排出端。然而,钻井泥浆在其从入口端向排出端流动时流过带孔滚筒,使得只有干固体留在靠近排出端的滚筒内。因此,在滚筒的入口端存在湿润段,在接近滚筒的排出端存在干燥段。抽吸装置位于湿润段中以破坏钻井泥浆中边界层的表面张力,从而有助于与固体的分离。这种跨过筛布的压降受到气锁(air lock)的控制。
与泥浆振动筛相关的问题在于其中使用的筛易于堵塞,尤其是当固体为粘性的(例如,粘土)或者尺寸接近筛的筛孔尺寸时更是如此。后一种类型的堵塞称作相近尺寸的颗粒堵塞。为解决该问题已经提出了许多解决方案,例如GB-A-1,526,663公开了一种筛组件,其使用采用夹层结构的两层筛分材料,允许筛分材料层单独移动以清除堵塞在所述筛之一中的任何相近尺寸的颗粒。涉及可旋转滚筒分离器的WO01/76720还公开了使用位于带孔滚筒外部的空气喷嘴以通过带孔滚筒在干燥区内提供正压空气,从而确保穿孔不被固体堵塞。
有利地使用细网孔过滤器以过滤很细小的颗粒,例如50-200μ或以上尺寸的颗粒,而过滤装置不会被小颗粒堵塞。然而,尤其是这种细孔过滤器易于发生这种不希望的堵塞。
另外有利的是提供在符合健康和安全法规的低噪音等级下操作的分离器。另外有利的是具有简单可靠的分离器以防止用于保养与修理的停机时间。
优选的是在某些环境下利用过滤器阻挡例如颗粒尺寸为50-60μ或更大的颗粒。
发明内容
根据本发明,提供了一种用于从载有固体的钻井泥浆中分离固体的方法,所述方法包括以下步骤:将载有固体的钻井泥浆导入筛的第一侧,钻井泥浆经过所述筛,被筛过的钻井泥浆位于所述筛的另一侧,其特征在于,振荡托盘位于钻井泥浆中并且与所述筛隔开,所述振荡托盘使钻井泥浆进行运动,从而有助于在所述筛中筛分所述载有固体的钻井泥浆。有利地,所述筛不振荡。所述筛优选地为固定的,有利地相对于所述振荡托盘固定。优选地,振荡运动为振动。
因此,通过钻井泥浆从托盘给所述筛提供振动。
为了加速筛分载有固体的钻井泥浆,需要在发生过滤处(即,载有固体的钻井泥浆与筛接触处)的接合处给载有固体的钻井流体提供能量。发明人已经发现,通过振动流化床(fluid bed)中的托盘,振动形式的能量可以提供给所述流化床,所述能量随后提供在发生过滤处(即,载有固体的钻井泥浆与筛接触处)的接合处。
优选地,振荡托盘位于所述筛的下面。有利地,托盘成形为容纳钻井泥浆。优选地,托盘包围筛的至少一部分,其中,钻井泥浆保持在振荡托盘中并且至少一部分筛沉浸于其中。通过容纳在筛周围的钻井泥浆,托盘相对于筛的振动运动产生横向于筛壁的泵动效应,这有助于从筛的小孔隙中冲走细小颗粒以及通过筛吸取钻井泥浆。因此,观察到冲洗、吸取和振动效果。
有利地,振荡托盘位于筛过的钻井泥浆中,并且运动从振动托盘施加给所述筛过的钻井泥浆。优选地,允许筛过的钻井泥浆流过托盘并流入贮槽。
优选地,振荡托盘连接到臂上,所述臂枢转安装到枢轴上,所述方法还包括使所述托盘围绕枢轴振荡的步骤。优选地,枢轴为万向节或销孔枢轴。有利地,托盘在水平和/或竖直平面内振荡。
优选地,筛利用流体喷射或多或少地连续冲洗。流体喷射有助于去除堵塞筛的固体。
有利地,其中,所述筛为曲形的。
优选地,所述筛为圆筒形式。有利地,所述方法还包括使所述圆筒旋转的步骤。优选地,圆筒旋转,使得在任意时刻,圆筒一端的下部在筛两侧都具有钻井泥浆。
本发明还提供了一种用于从载有固体的钻井流体中分离固体的设备,所述设备包括筛、托盘和振荡机构,所述振荡机构使所述托盘产生振荡,以使得在使用中,所述托盘使钻井泥浆振荡,以使要被所述筛筛分的载有固体的钻井泥浆运动。
优选地,筛不与托盘一致地振荡。有利地,托盘位于所述筛的下面。优选地,托盘成形为容纳钻井泥浆。有利地,托盘包括使钻井泥浆可以流过的至少一侧。筛过的钻井泥浆从托盘边缘和筛下面流出。因此,形成堰部(weir)。优选地,托盘包围至少一部分筛,其中,钻井泥浆保持在托盘中并且至少一部分筛沉浸于其中。
有利地,所述筛为曲形的。优选地,所述筛为圆筒状。优选地,托盘具有与滚筒半径大体上相当的宽度。优选地,所述设备还包括有助于使圆筒筛旋转的轴。有利地,设置使载有固体的钻井泥浆沿圆筒筛流动的螺杆。
有利地,在使用中,筛包括湿润区和干燥区,在所述湿润区内,钻井泥浆位于所述圆筒筛内,在所述干燥区内,没有或只有很少钻井泥浆位于所述圆筒筛内。优选地,托盘位于湿润区内。
有利地,设备还包括枢轴,托盘枢转地安装到所述枢轴上。优选地,托盘围绕水平轴线枢转,并且有利地在臂端部上枢转。优选地,轴线与托盘的最近端隔开一段距离。有利地,等于筛的长度,使得当钻井泥浆的期望池深降低时,沿托盘长度的振荡减小。
优选地,布置用于冲洗筛的喷嘴。
因此,利用根据本发明的解决方案,通过振动被提供能量的是流体而非筛。
因为筛本身不发生机械振动,例如筛的尺寸和结构可以简化。
附图说明
为了更好地理解本发明,现在以举例方式参考附图,其中:
图1显示了从载有固体的钻井泥浆中分离固体的已知设备,如WO 01/76720A1所公开的那样;
图2是显示了载有固体的钻井泥浆流过根据本发明设备的流程图;
图3是根据本发明设备的侧视图的示意图;
图4是图3所示设备的端视图的示意图;
图5显示了沿根据本发明设备的实施例剖开的垂直剖面;和
图6显示了沿图5中直线6-6剖开的图5所示实施例的垂直剖面。
具体实施方式
图1显示了从载有固体的钻井泥浆中分离固体的已知设备,总体以参考数字10表示。PCT公开号WO 01/76720A1中公开的这种设备在此引入作为参考。设备10由可旋转滚筒19组成,所述可旋转滚筒由位于任一端的轴20支撑。轴20可旋转地支撑在相关轴承21中。在可旋转滚筒19内布置与滚筒19一起旋转的同心螺杆22。可旋转滚筒19具有圆筒形构件13,所述圆筒形构件设置有大量开口或穿孔23。螺杆22由心轴24和围绕其布置的螺旋形叶片25组成。
滚筒19具有液密前壁26。壁28位于滚筒19内,其界定了流体导入区域12和进入由心轴24和圆筒形构件13界定的流体通道的开口。
当滚筒19旋转时,载有固体的钻井流体利用叶片25从入口9螺旋前进至滚筒19的出口15,同时对载有固体的钻井泥浆12进行过滤。经过滤的钻井泥浆12a尤其利用重力经过穿孔23流出。因此,液面在每个连续的腔室30内连续降低,直到大体上全部钻井流体12a流出,并且只有固体留在圆筒形构件13上。固体11仍然通过滚筒19的旋转朝向出口15运动。因此,设备10设置有第一湿润区16和连续的干燥区17。这些区域的尺寸取决于许多因素,尤其包括所导入的载有固体的钻井泥浆的速率和数量;载有固体的钻井泥浆中的固体的特性;以及钻井泥浆的特性。
现在参见图2、3和4,其中示意性地显示了与图1所示有些类似的设备,总体上以参考数字10表示。相同的数字用于表示图1所示相同的部件。载有固体的钻井泥浆从井眼输送到设备10的入口9中。
载有固体的钻井泥浆14流入旋转滚筒19中并沿着由心轴24和圆筒筛13界定的通道输送。圆筒筛13可以由例如细孔网或布制成,该细孔网或布伸展支撑在带孔圆筒上。
设备10还包括充有钻井泥浆的振动托盘18,其位于至少湿润区16的下方。许多喷嘴34也布置在旋转滚筒19的任意一侧,成直线且就位于托盘18上方。该列喷嘴34至少沿滚筒19的湿润区16延伸。相应地,托盘18可有利地长至滚筒19的湿润区16的期望长度,或者可更长或者可为滚筒19的全长。
位于滚筒19下面的托盘18围绕横向于滚筒19的纵向轴线延伸的水平轴线31枢转悬挂在一端。可选地,轴线31可以为允许托盘18振荡的万向节形式。
设备10具有围绕纵向轴线旋转的滚筒19并且设置有在轴承21中旋转的轴20。在旋转期间,载有固体的钻井泥浆14沿着滚筒19的纵向轴线从入口9通过滚筒19的内部并沿着圆筒筛13输送。在其路径上,滤过的钻井泥浆12a利用重力流过圆筒筛13和/或被泵出,而固体沿轴向方向通过滚筒19移向出口15。如图2所示,在滚筒19中形成有湿润区16和干燥区17。在钻屑在入口9的相对端离开滚筒19之前,基本上所有筛过的钻井泥浆12a已经流出滚筒19和/或通过圆筒筛13泵出。固体11随后以已知方式输送到适当的地下掩埋场(未显示),或者输送到钻屑箱或其它此类容器中以用于进一步使用。滤过的钻井泥浆12a以已知方式再次循环回到井眼中或者在再循环之前进一步处理。滚筒19设置有布置在滚筒19内的螺杆装置22,从而以受控方式将固体和钻井泥浆向前输送向设备10的钻屑的出口(未显示)。
在托盘18的入口端安装有装置32(参考图3),其用于给托盘18提供围绕固定轴31的振动运动。
该滚筒19的长度为2.5米,直径为1.5米。
当托盘18朝向圆筒筛13向上移动时,流体受迫通过圆筒筛13向上流动,从而有助于松动位于圆筒筛13的内表面上的颗粒。向上运动因此迫使一部分钻井泥浆经过筛布,使得筛布“打开”,而钻井泥浆同时受迫流向托盘18的侧面18a,流过侧面18a和圆筒筛13之间的空间并从其流出,流入贮槽35中。
当托盘18离开圆筒筛13时,产生抽吸效应,有助于将钻井泥浆通过圆筒筛13吸出。托盘18的长度至少大体上相当于滚筒19内的湿润区16的长度。对于托盘18来说不优选地是具有在干燥区17下方延伸的区域。然而,如果托盘延伸到干燥区17中的话,所述方法将起作用,而是只在湿润区16内有效。为此,可能希望托盘18悬挂在延伸于托盘18和轴31之间的一个或多个臂33上。当托盘18向下移动时,流体将由此从圆筒筛13吸出,而一部分流体将同时利用重力流过,进一步流到干燥区17中。因此填充托盘18和圆筒筛13之间的体积,使得托盘18装有流体并准备好新的向上运动。
滤过的钻井泥浆12a通过圆筒筛13并从托盘18的侧面18a顶部上方向下流动,并且收集在具有倾斜底板36的贮槽35中,以便利用相关泵(未显示)通过管道系统进一步泵出/排出。
如图5所示,滚筒19和托盘18置入包围滚筒19和托盘18的外壳37中。在这方面,应当注意到,设备10设置有必要的马达、管道系统、机罩开口以允许方便地通向滚筒19、贮槽35、固体收集箱(未显示)以及对于本领域技术人员显而易见但未进一步详细描述的类似物。
图6显示了沿图5的直线6-6剖开的垂直剖面。与图2-4示意性显示的设备大体上类似的设备10置入到外壳37内,外壳37完全包围设备10且起到消音作用和防止钻井泥浆和/或固体从设备10中逃出的作用。封壳还可以连接到HVAC系统以防止烟雾和污染物收集在设备周围。设备10包括滚筒19,其围绕支撑在轴承21中的轴20旋转。所示轴20形成有中心开口14以供给要在分离器10中处理的钻屑和钻井泥浆。悬挂在两个臂33上的托盘18布置在其下端,所述臂悬挂在轴承(未显示)上的相对端。在滚筒19的入口端,托盘18设置有竖直板形式的前终端部38。所示终端部38位于滚筒19的前壁26的前面。
就在托盘18上方布置有朝向滚筒19外面喷射流体的多个喷嘴34,这在操作期间有助于释放可能堵塞在圆筒筛13内的任何固体。出于清楚的原因,没有显示用于喷射流体的供给管。根据所示实施例,在滚筒的任一侧上使用两排喷嘴34。喷嘴沿滚筒19的纵向方向延伸,至少一直延伸到滚筒的湿润区的端部和/或托盘18的后端。
圆筒筛13优选地包括一层或多层细孔布(未显示),其拉紧到带孔圆筒形构件的表面上。每块布覆盖90度区域,使得四块布覆盖滚筒19的整个圆周。所述布为柔性的,并且每块布在其一端设置有钩形装置以挂在适当的保持装置上,而相对端设置有与用于拉紧布的拉紧装置39相配合的相应保持装置,使得它围绕滚筒19的表面区域伸展。滚筒设置有四个这种拉紧装置,在附图中可看到其中三个。
流体分离器10的外壳37设置有一个或多个检查和/或维修口40,其中一个显示为打开位置。
设备10以下列方式操作:
流体(通常为但非必要地为净化钻井泥浆)被导入托盘18,同时,滚筒19旋转并且载有固体的钻井泥浆14被通过入口9导入设备10。净化钻井泥浆也朝向圆筒筛13的延伸穿过湿润区16的那部分的外面喷射于其上。净化钻井泥浆通过布置在滚筒19下部任一侧上的喷嘴34喷射。
当载有固体的钻井泥浆撞击滚筒19的内部时,钻井泥浆尤其利用重力通过带孔圆筒13流出滚筒19和/或通过托盘18的向下运动吸出,而钻屑保持在滚筒19中并利用例如布置在滚筒19内的螺杆22沿轴向方向移动。
当固体在滚筒19内朝向出口轴向移动时,全部钻井泥浆将从设备10中逐渐流出,并且固体在其沿干燥区17前进时逐渐变干。然而,应当指出,固体仍然保持湿润,有时具有糊状稠度。
具有清洁钻井泥浆的托盘18始终优选地以椭圆或弧形运动方式上下振荡,从而产生泵送效应,在向上运动时使已经从内部粘在圆筒13上的穿孔23(和任何筛布)中的颗粒松动,在向下运动时使钻井泥浆通过圆筒13上的穿孔23(和任何筛布)从滚筒19中流出。
钻井泥浆向下流到托盘18中并随后从托盘18流入贮槽35中,从而有可能进一步再循环到井内。
在托盘18上下振荡的同时,利用喷嘴34沿与钻井流体流动方向相反的方向从外面冲洗圆筒筛13,所述喷嘴可布置在托盘18的一侧或两侧并且紧靠其侧面。
固体收集在深坑、容器或输送装置或一些其它形式的适当处置装置中。
在示例性实施例中,沿滚筒19的旋转方向观察,喷嘴34位于托盘18的前面和后面。因此,在被冲洗部分与托盘18上的流体形成接触并且经受由流体运动引起的振动之前,圆筒筛13上的穿孔23从外面受到冲洗。然而,应当指出,在不脱离本发明范围的情况下,喷嘴34可以沿滚筒19的全部或部分自由表面进行布置。可选地,流体分离器可以形成为不具有任何外部喷嘴。
根据如上所述的示例性实施例,在外面有过量流体,使得始终存在足够的流体来形成由托盘18产生的振动效应和钻井泥浆的运动。因此,托盘18在其自由端(即最靠近钻屑和流体入口的端部)设置有边界(壁),而在相对端不必一定形成有任何横向终端部,因此,允许流体在托盘端部自由流出托盘。应当注意的是,托盘可以采取任何形式,只要托盘与还流过滚筒筛部的钻井泥浆接触即可。
然而,至少在位于带有钻屑的钻井流体入口处的端部,托盘可以(如果希望的话)设置有边界,其限制流体从所述端部流出。
根据本发明的设备10可有利地完全置入到带有开口的封闭外壳37中,所述开口例如用于确保进入设备10以检查、维修和更换过滤装置13。
用于使托盘18移动或振动的机构32可以是任何适当类型,例如,驱动具有偏心配重的臂的马达,以便通过偏心运动给托盘18提供希望的振动。
本发明不排他地限于分离由例如下至50-60μ的细微颗粒组成的固体,而且还可以分离由更大颗粒尺寸组成的固体。
Claims (30)
1.一种用于从载有固体的钻井泥浆中分离固体的方法,所述方法包括以下步骤:将载有固体的钻井泥浆导入筛的第一侧,钻井泥浆经过所述筛,被筛过的钻井泥浆位于所述筛的另一侧,其特征在于,振荡托盘位于钻井泥浆中并且与所述筛隔开,所述振荡托盘使钻井泥浆进行运动,从而有助于在所述筛中筛分所述载有固体的钻井泥浆。
2.如权利要求1所述的方法,其中,所述振荡托盘位于所述筛下面。
3.如权利要求1或2所述的方法,其中,所述托盘成形为容纳钻井泥浆。
4.如权利要求1、2或3所述的方法,其中,所述托盘包围筛的至少一部分,其中,钻井泥浆保持在振荡托盘内并且至少一部分筛沉浸于其中。
5.如权利要求1所述的方法,其中,所述振荡托盘位于筛过的钻井泥浆中,并且运动从振动托盘施加给所述筛过的钻井泥浆。
6.如权利要求5所述的方法,其中,允许筛过的钻井泥浆流过所述托盘并流入贮槽。
7.如前述权利要求中任一项所述的方法,其中,所述筛不振荡。
8.如前述权利要求中任一项所述的方法,其中,所述振荡托盘连接到臂上,所述臂枢转安装到枢轴上,所述方法还包括使所述托盘围绕枢轴振荡的步骤。
9.如前述权利要求中任一项所述的方法,其中,所述托盘在水平和/或竖直平面内振荡。
10.如前述权利要求中任一项所述的方法,其中,所述筛利用流体喷射或多或少地连续冲洗。
11.如前述权利要求中任一项所述的方法,其中,所述筛为曲形的。
12.如前述权利要求中任一项所述的方法,其中,所述筛为圆筒形式。
13.如权利要求9所述的方法,还包括使所述圆筒旋转的步骤。
14.如权利要求10所述的方法,其中,所述圆筒旋转,使得在任意时刻,所述圆筒一端的下部在所述筛的两侧具有钻井泥浆。
15.如前述权利要求中任一项所述的方法,其中,所述振荡运动为振动。
16.一种用于从载有固体的钻井流体中分离固体的设备,所述设备包括筛(13)、托盘(18)和振荡机构(32),所述振荡机构(32)使所述托盘(32)产生振荡,以使得在使用中,所述托盘(18)使钻井泥浆振荡,以使要被所述筛(13)筛分的载有固体的钻井泥浆(14)运动。
17.如权利要求16所述的设备,其中,所述筛(13)不与托盘(18)一致地振荡。
18.如权利要求16或17所述的设备,其中,所述托盘(18)位于所述筛(13)下面。
19.如权利要求16、17或18所述的设备,其中,所述托盘(18)成形为容纳钻井泥浆。
20.如权利要求16-19中任一项所述的设备,其中,所述托盘(18)包括钻井泥浆可流过的至少一侧(18a)。
21.如权利要求16-19中任一项所述的设备,其中,所述托盘(18)包围所述筛(13)的至少一部分,其中,钻井泥浆保持在所述托盘(18)中并且至少一部分筛沉浸其中。
22.如权利要求16-21中任一项所述的设备,其中,所述筛(13)为曲形的。
23.如权利要求16-22中任一项所述的设备,其中,所述筛(13)为圆筒形。
24.如权利要求23所述的设备,还包括用于使圆筒筛(13)旋转的轴(20)。
25.如权利要求23或24所述的设备,还包括使载有固体的钻井泥浆沿圆筒筛(13)运动的螺杆(22)。
26.如权利要求16-24中任一项所述的设备,其中,所述筛包括湿润区(16)和干燥区(17),在使用中,在所述湿润区内,钻井泥浆位于所述圆筒筛内,在所述干燥区内,没有或只有很少钻井泥浆位于所述圆筒筛内。
27.如权利要求25所述的设备,其中,所述托盘(18)位于所述湿润区(16)内。
28.如权利要求16-27中任一项所述的设备,还包括枢轴(31),所述托盘(18)枢转安装到所述枢轴上。
29.如权利要求28所述的设备,其中,轴线与所述托盘(18)的最近端隔开一段距离。
30.如权利要求16-29中任一项所述的设备,其中,喷嘴(34)布置为用于冲洗所述筛(13)。
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- 2006-05-26 EP EP06744326A patent/EP2021133A1/en not_active Withdrawn
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CN105107735A (zh) * | 2010-04-30 | 2015-12-02 | 国民油井华高有限合伙公司 | 泥浆振动筛及使用其分离含有固体的钻井流体的方法 |
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US20090301939A1 (en) | 2009-12-10 |
WO2007138240A1 (en) | 2007-12-06 |
US8201693B2 (en) | 2012-06-19 |
CA2652738A1 (en) | 2007-12-06 |
BRPI0621570A2 (pt) | 2011-12-13 |
MX2008013608A (es) | 2009-02-12 |
NO20084391L (no) | 2009-02-18 |
CA2652738C (en) | 2011-10-04 |
EP2021133A1 (en) | 2009-02-11 |
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