公开(公告)号：US4260017A

公开(公告)日：1981-04-07

申请号：US93647

申请日：1979-11-13

Applicant: Wayne F. Nelson ,  Paul A. Weiss

Inventor： Wayne F. Nelson ,  Paul A. Weiss

IPC: E21B33/16 ,  E21B34/14 ,  E21B33/14

CPC classification number: E21B33/16 ,  E21B34/14

Abstract: The cementing collar described herein is designed primarily for cementing operations in oil or gas wells. The basic assembly includes a collar, an outer sleeve slidable in the collar, and an inner sleeve slidable in the outer sleeve. The collar and outer sleeve each have cementing ports therein. When the assembly is being run into the well casing, the collar and both sleeves are secured by shear pins in a position such that the cementing ports are closed. To open the cementing ports a trip bomb is dropped into the casing to engage a seat inside the outer sleeve. This causes the pins to shear and permits the outer sleeve to move down to a position in which the sleeve ports line up with the collar port. After cementing has been completed, a plug is flowed down the casing to engage the inner sleeve. Fluid pressure is applied behind the plug to shear the pins a second time. This moves the outer sleeve further down to a position in which the cementing ports are again closed.

Abstract translation: 本文所述的固井套件主要用于油井或气井中的固井作业。 基本组件包括套环，可在套环中滑动的外套筒和可在外套筒中滑动的内套筒。 套环和外套筒各有固定口。 当组件进入井套管时，套环和两个套筒都通过剪切销固定在一个使得固井口关闭的位置。 为了打开固井口，将行程炸弹落入外壳中以与外套筒内的座椅接合。 这导致销剪切并允许外套筒向下移动到套筒端口与套环端口对齐的位置。 固井完成后，将塞子从壳体向下流动以接合内套筒。 在塞子之后施加流体压力以第二次剪切销。 这使得外套筒进一步向下移动到胶合端口再次闭合的位置。

公开(公告)号：US5279728A

公开(公告)日：1994-01-18

申请号：US51772

申请日：1993-04-26

Applicant: Paul A. Weiss

Inventor： Paul A. Weiss

IPC: B01D35/05 ,  E04H4/12

CPC classification number: E04H4/1254 ,  B01D35/05

Abstract: An apparatus including valving structure to direct in a circular swimming pool a first conduit to effect a circular stream within the swimming pool, with a second conduit directed to a basket, and the second conduit having a nozzle directing fluid flow into the basket in association with the first conduit to direct debris from the swimming pool into the basket structure.

Abstract translation: 一种包括阀门结构的装置，其引导在圆形游泳池中的第一导管，以在游泳池内产生圆形流，第二导管指向篮子，第二导管具有引导流体流入篮子的喷嘴， 将游泳池中的碎屑引导入篮子结构的第一条管道。