公开(公告)号：US4130165A

公开(公告)日：1978-12-19

申请号：US901906

申请日：1978-05-01

Applicant: Clarence R. Fast ,  George E. King

Inventor： Clarence R. Fast ,  George E. King

IPC: C09K8/502 ,  E21B33/138 ,  E21B43/32 ,  E21B43/00

CPC classification number: E21B33/138 ,  C09K8/502 ,  E21B43/32

Abstract: A method for shutting off or decreasing the production of water from an oil well. An oil well producing excess water is taken off production and a gas is injected into the well, followed by a slug of clean oil containing an emulsifier. The well is then produced as fast as possible. The previously injected gas and water in water-producing zones begin to finger back through the oil slug and forms a viscous emulsion which blocks the further flow of water into the producing well.

Abstract translation: 一种从油井中切断或减少水分产生的方法。 将产生过量水的油井从生产中取出，将气体注入井中，随后加入含有乳化剂的清洁油块。 然后尽可能快地生产井。 先前注入的水和水在产水区域开始指回油块，并形成粘性乳液，阻止进入生产井的进一步的水流。

公开(公告)号：US4064938A

公开(公告)日：1977-12-27

申请号：US648357

申请日：1976-01-12

Applicant: Clarence R. Fast

Inventor： Clarence R. Fast

IPC: B01D29/15 ,  E21B43/08

CPC classification number: E21B43/088 ,  B01D29/15 ,  B01D2201/313

Abstract: An erosion-resistant sand screen assembly is described for use in petroleum wells of the type in which sand tends to become entrained in the stream of petroleum entering the wellbore. The assembly is especially useful in cased holes in formations which consist of very find sand, such as have been encountered in the Gulf Coast region of the United States and off the east coast of Trinidad. The assembly uses a sleeve with an erosion-resistant wall at least one-fourth inch thick, positioned around the outside layer of wire screen. Preferably, the assembly has an outer surface of a resilient elastomeric material.

Abstract translation: 描述了一种防侵蚀砂筛组件，用于石油井，其中沙子倾向于夹带在进入井眼的石油流中。 该组织在地层的套管井中特别有用，其中包括非常发现沙子，例如在美国墨西哥湾沿岸地区和特立尼达东部海岸遇到的。 组件使用具有至少四分之一英寸厚的抗侵蚀壁的套筒，围绕丝网的外层定位。 优选地，组件具有弹性弹性体材料的外表面。