中国煤层气
中國煤層氣
중국매층기
CHINA COALBED METHANE
2012年
5期
20-23
,共4页
赵庆彬%耿铁鑫%秦伟%李任翔
趙慶彬%耿鐵鑫%秦偉%李任翔
조경빈%경철흠%진위%리임상
低煤阶%褐煤%绳索取芯
低煤階%褐煤%繩索取芯
저매계%갈매%승색취심
Low rank coal%lignite%wire-line coring
海拉尔盆地呼和湖凹陷煤层薄，煤阶低，以褐煤为主，给取芯工作带来很大难度，常规绳索取芯技术已不符合该地区煤层气参数井钻进要求，因此根据呼和湖凹陷地质特征，优选适宜的绳索取芯钻具结构及技术措施。
海拉爾盆地呼和湖凹陷煤層薄，煤階低，以褐煤為主，給取芯工作帶來很大難度，常規繩索取芯技術已不符閤該地區煤層氣參數井鑽進要求，因此根據呼和湖凹陷地質特徵，優選適宜的繩索取芯鑽具結構及技術措施。
해랍이분지호화호요함매층박，매계저，이갈매위주，급취심공작대래흔대난도，상규승색취심기술이불부합해지구매층기삼수정찬진요구，인차근거호화호요함지질특정，우선괄의적승색취심찬구결구급기술조시。
Coal in Huhe lake depression of Hailaer Basin is mainly low rank lignite occurred in thin coal seams, which brings about great difficulties in coring. The conventional wire line technique can not meet the requirements for drilling CBM parameter well within this region. Therefore, the structure of wire line coting tool and the adequate technical measures have been selected in accordance with the geolog ical characteristics of Huhe lake depression.
