公开(公告)号：US20160194953A1

公开(公告)日：2016-07-07

申请号：US14916678

申请日：2013-09-05

Applicant: EVOLUTION ENGINEERING INC.

Inventor： David A. SWITZER ,  Aaron W. LOGAN ,  Jili (Jerry) LIU ,  Mojtaba KAZEMI MIRAKI

IPC: E21B47/12

CPC classification number: E21B47/122 ,  E21B17/003

Abstract: A range of apparatus and methods for providing local and long range data telemetry within a wellbore is described. These apparatus and methods may be combined in a wide variety of ways. In some embodiments data is transmitted across a gap in a drill string using signals of a higher frequency for which an electrical impedance of the gap or of a filter connected across the gap is low. Low-frequency EM telemetry signals may be applied across the gap. The gap and any filter connected across the gap present a high impedance to the low-frequency EM telemetry signals. The described technology may be applied for transferring sensor readings between downhole electrical packages. In some embodiments sensors are electrically connected across electrically insulating gaps in the drill string.

Abstract translation: 描述了一系列用于在井眼内提供局部和远程数据遥测的装置和方法。 这些装置和方法可以以各种各样的方式组合。 在一些实施例中，使用更高频率的信号跨越钻柱中的间隙传输数据，间隙或跨过间隙连接的滤波器的电阻抗较低。 可以跨越间隙施加低频EM遥测信号。 间隙和跨过间隙连接的任何滤波器对低频EM遥测信号呈现高阻抗。 所描述的技术可以应用于在井下电气封装之间传送传感器读数。 在一些实施例中，传感器电连接在钻柱中的电绝缘间隙上。

公开(公告)号：US20220034214A1

公开(公告)日：2022-02-03

申请号：US17450916

申请日：2021-10-14

Applicant: EVOLUTION ENGINEERING INC.

Inventor： Mojtaba KAZEMI MIRAKI ,  Aaron W. LOGAN

IPC: E21B44/04 ,  E21B47/007 ,  G01L5/26 ,  G01L3/26 ,  G01P15/18

Abstract: Methods and apparatus for identifying downhole dynamics in a drilling system are provided. Acceleration-detecting sensors are mounted at multiple locations near to a drill bit, such as at a drill collar. The sensors may be spaced 90° apart along a circumference of the drill collar. The sensors detect acceleration measurements in a plane orthogonal to the drill string's axis of rotation, with respect to a first reference frame that moves with the drill string. The acceleration measurements are received by a processor and processed to determine rotational and revolution positions of the drill string within the wellbore with respect to a static reference frame. Whirl dynamics may, in particular, be determined based on the results in real time.

公开(公告)号：US20210381319A1

公开(公告)日：2021-12-09

申请号：US17445561

申请日：2021-08-20

Applicant: EVOLUTION ENGINEERING INC.

Inventor： Luke A. STACK ,  Aaron W. LOGAN ,  Justin C. LOGAN ,  Mojtaba KAZEMI MIRAKI ,  Patrick R. DERKACZ ,  Gavin Gaw-wae LEE ,  Hasan Alper HEPGUVENDIK ,  Daniel W. AHMOYE ,  Angelica J.B. FRANCOEUR

IPC: E21B17/00 ,  H01B3/12 ,  F16L25/01 ,  E21B17/02

Abstract: A gap sub assembly for electromagnetic telemetry used in downhole drilling is disclosed. The gap sub comprises a female part comprising a female mating section and a male part comprising a male mating section. The male mating section is matingly received within the female mating section and electrically isolated therefrom. One or more electrically insulating bodies secure the male part axially and torsionally relative to the female part. The electrically insulating bodies also electrically isolate the male part from the female part. The electrically insulating bodies can be installed through apertures in the female part or at least some of the electrically insulating bodies can be installed before the male mating section is inserted into the female mating section. The electrically insulating bodies can be held in place on the male mating section using a retention apparatus such as a ring, a scarf, pods or an adhesive.

公开(公告)号：US20200011751A1

公开(公告)日：2020-01-09

申请号：US16486673

申请日：2018-02-22

Applicant: EVOLUTION ENGINEERING INC.

Inventor： Mojtaba KAZEMI MIRAKI ,  Aaron W. LOGAN

IPC: G01L5/26 ,  E21B44/04 ,  E21B47/00 ,  E21B47/024 ,  G01P15/18

Abstract: Methods and apparatus for identifying downhole dynamics in a drilling system are provided. Acceleration-detecting sensors are mounted at multiple locations near to a drill bit, such as at a drill collar. The sensors may be spaced 90° apart along a circumference of the drill collar. The sensors detect acceleration measurements in a plane orthogonal to the drill string's axis of rotation, with respect to a first reference frame that moves with the drill string. The acceleration measurements are received by a processor and processed to determine rotational and revolution positions of the drill string within the wellbore with respect to a static reference frame. Whirl dynamics may, in particular, be determined based on the results in real time.

公开(公告)号：US20190004209A1

公开(公告)日：2019-01-03

申请号：US16113735

申请日：2018-08-27

Applicant: Evolution Engineering Inc.

Inventor： Aaron W. LOGAN ,  Patrick R. DERKACZ ,  Justin C. LOGAN ,  Barry Daniel BUTERNOWSKY ,  Mojtaba KAZEMI MIRAKI

IPC: G01V13/00 ,  G01V5/12 ,  E21B47/01 ,  G01V5/04 ,  G01T7/00

CPC classification number: G01V13/00 ,  E21B47/01 ,  G01T7/005 ,  G01V5/04 ,  G01V5/12

Abstract: A downhole system comprises a main sensor, such as a gamma sensor, and a backup sensor. The backup sensor may be of a different type from the main sensor. In some embodiments the backup sensor is a high reliability sensor that may have a different sensitivity from the main sensor. The system operates both the main and backup sensors and generates calibration data for the backup sensor. If the main sensor fails the calibration data may be applied to process data from the backup sensor to yield an estimate of the data that the main sensor would have yielded if it had remained operational. The calibration data may compensate for temperature variations and/or temporal drift, for example.

公开(公告)号：US20170211377A1

公开(公告)日：2017-07-27

申请号：US15321666

申请日：2015-05-08

Applicant: EVOLUTION ENGINEERING INC.

Inventor： Justin C. LOGAN ,  Mojtaba KAZEMI MIRAKI ,  Aaron W. LOGAN ,  Daniel W. AHMOYE ,  Patrick R. DERKACZ ,  Barry Daniel BUTERNOWSKY

IPC: E21B47/12 ,  E21B47/02 ,  E21B47/18

CPC classification number: E21B47/122 ,  E21B4/02 ,  E21B47/02 ,  E21B47/121 ,  E21B47/18 ,  H04L67/12 ,  H04Q9/00 ,  H04Q2209/40

Abstract: A telemetry method transmits data by MP telemetry to a telemetry relay system which retransmits the data by EM telemetry. The method avoids the need to incorporate MP telemetry pressure transducers into rig equipment and permits telemetry from regions unfavourable for EM telemetry because of depth and/or characteristics surrounding formations.

公开(公告)号：US20160146000A1

公开(公告)日：2016-05-26

申请号：US14900063

申请日：2014-06-20

Applicant: EVOLUTION ENGINEERING INC.

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

IPC: E21B47/12 ,  E21B17/02

CPC classification number: E21B17/006 ,  E21B17/003 ,  E21B17/028 ,  E21B47/122

Abstract: An electromagnetic telemetry signal generating assembly comprises a first section of drill string, a second section of drill string, a gap sub configured to insulate the first section from the second section, and a power source configured to provide a first voltage to a control circuit. The control circuit is configured to drive a second voltage between the sections of drill string. The gap sub provides a gap of at least 12 inches (30 cm). The second voltage may be different than the first voltage.

Abstract translation: 电磁遥测信号发生组件包括钻柱的第一部分，钻柱的第二部分，被配置为将第一部分与第二部分绝缘的间隙子和被配置为向控制电路提供第一电压的电源。 控制电路构造成在钻柱的各段之间驱动第二电压。 间隙sub提供至少12英寸（30厘米）的间隙。 第二电压可以不同于第一电压。