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Downhole signaling system 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • E21B-047/02
출원번호 US-0487099 (1974-07-10)
발명자 / 주소
  • Gearhart Marvin (Fort Worth TX) King David W. (Fort Worth TX) Mendoza Rudolph R. (Fort Worth TX) Scherbatskoy Serge A. (Fort Worth TX) Young James D. (Fort Worth TX)
출원인 / 주소
  • Gearhart-Owen Industries, Inc. (Fort Worth TX 02)
인용정보 피인용 횟수 : 106  인용 특허 : 0

초록 ▼

This describes a method for improved data signaling equipment for use with well-drilling tools for rapidly sending measurements made down the hole in the wellbore to the surface without the need of an electric cable. A special well tool is connected into a drill string having a drill bit coupled the

대표청구항 ▼

A method of transmitting data from the bottom of a fluid-filled drill string in a borehole drilled in the earth, which comprises: a. closing the main path of fluid in said drill string to fluid passage at the bottom of said drill string and at the surface of the earth; b. applying fluid pressure at

이 특허를 인용한 특허 (106)

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