公开(公告)号：US20150330155A1

公开(公告)日：2015-11-19

申请号：US14443173

申请日：2013-11-15

Applicant: EVOLUTION ENGINEERING INC.

Inventor： Aaron W. LOGAN ,  Daniel W. AHMOYE ,  David A. SWITZER ,  Justin C. LOGAN ,  Patrick R. DERKACZ ,  Mojtaba KAZEMI

IPC: E21B17/02 ,  F16L25/02 ,  F16L15/08 ,  E21B17/042 ,  E21B17/046

CPC classification number: E21B17/028 ,  E21B17/003 ,  E21B17/042 ,  E21B17/046 ,  F16L15/08 ,  F16L25/02 ,  F16L25/021 ,  F16L2201/40

Abstract: An insulating collar for a gap sub assembly for electromagnetic (EM) telemetry used in downhole drilling is disclosed. The gap sub assembly comprises a female member comprising a female mating section and a male member comprising a male mating section and a gap section. The male mating section is matingly received within the female mating section and electrically isolated therefrom. The insulating collar is positioned on the gap section. The collar is made up of a framework with a plurality of discrete bodies spaced about the framework and a portion of each of the discrete bodies protrudes above the framework. Either the framework or the discrete bodies are made of an electrical insulator material to electrically isolate one end of the collar from the other end of the collar. The collar therefore electrically isolates the male member from the female member and the male member, female member and insulating collar function as the “gap sub” for EM telemetry.

Abstract translation: 公开了一种用于在井下钻井中使用的用于电磁（EM）遥测的间隙子组件的绝缘套环。 间隙子组件包括阴构件，其包括阴配合部分和包括阳配合部分和间隙部分的阳构件。 阳配合部分配合地接纳在阴配合部分内并且与其电绝缘。 绝缘套环位于间隙部分上。 轴环由具有围绕框架间隔开的多个离散体的框架构成，并且每个离散体的一部分在框架上方突出。 框架或离散体由电绝缘材料制成，以将套环的一端与套环的另一端电隔离。 因此，套环将阳构件与阴构件电绝缘，阳构件，阴构件和绝缘环用作EM遥测的“间隙”。

公开(公告)号：US20150315900A1

公开(公告)日：2015-11-05

申请号：US14650502

申请日：2012-12-07

Applicant: EVOLUTION ENGINEERING INC.

Inventor： Jili (Jerry) LIU ,  Patrick R. DERKACZ ,  Aaron W. LOGAN ,  Justin C. LOGAN ,  David A. SWITZER

IPC: E21B47/01 ,  E21B17/16 ,  E21B17/10

CPC classification number: E21B47/01 ,  E21B17/1007 ,  E21B17/1078 ,  E21B17/16 ,  E21B47/011

Abstract: A method for using a downhole probe. The method comprises providing a probe, at least one vertical cross section of the probe having an area of at least pi inches squared. The method further comprises inserting the probe into a bore of a drill collar and passing a drilling fluid through the bore of drill collar at a flow velocity of less than 41 feet per second.

Abstract translation: 一种使用井下探头的方法。 该方法包括提供探针，所述探针的至少一个垂直横截面具有至少pi英寸平方的面积。 该方法还包括将探头插入钻铤的孔中，并以小于41英尺/秒的流速使钻井液穿过钻铤的钻孔。