최소 단어 이상 선택하여야 합니다.
최대 10 단어까지만 선택 가능합니다.
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
NTIS 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
DataON 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Edison 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0152716 (1980-05-23) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 275 인용 특허 : 7 |
An in situ coal gasification process adapted for large scale commercial projects is provided. Techniques are provided to insure establishment of a gasification front over the full seam thickness as each successive injection well in the array is brought on line. This is accomplished by controlling th
An in situ coal gasification process adapted for large scale commercial projects is provided. Techniques are provided to insure establishment of a gasification front over the full seam thickness as each successive injection well in the array is brought on line. This is accomplished by controlling the oxidant introduction in a prescribed manner during the early stages of injection after pneumatic communication between well pairs has been established. Also provided are techniques and standards for avoiding or controlling subsidence and for conducting gasification operations in free water laden seams and in coal seams subject to spontaneous combustion.
A process to establish a stable gasification zone over the full seam thickness in the in situ gasification of coal which comprises: establishing pneumatic communication between an injection well and a producing well; igniting the coal seam at the injection well; introducing gaseous oxidant at the in
A process to establish a stable gasification zone over the full seam thickness in the in situ gasification of coal which comprises: establishing pneumatic communication between an injection well and a producing well; igniting the coal seam at the injection well; introducing gaseous oxidant at the injection well at a rate which is a minor fraction of the calculated maximum injection rate for a period of time sufficient to allow a gasification zone to expand outward from the bottom of the injection wellbore, downward to the bottom of the coal seam and upward around the wellbore to the top of the coal seam, and thereafter progressively increasing the injection rate until the calculated maximum rate has been attained.
Copyright KISTI. All Rights Reserved.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.