中国煤层气
中國煤層氣
중국매층기
CHINA COALBED METHANE
2012年
1期
31-33,9
,共4页
煤层气%储层伤害%钻井工艺%完井方式
煤層氣%儲層傷害%鑽井工藝%完井方式
매층기%저층상해%찬정공예%완정방식
Coalbed methane (CBM)%reservoir damage%drilling process%completion way
在分析国内外主要煤国煤层气资源量基础上,可看出中国的煤层气储存量非常丰富,虽然煤层气的开发利用能大大改善我国能源结构,在一定程度上解决能源供给不足,但是不合理的煤层气井钻、完井方式会对储层造成伤害,影响产气量。因此,针对储层的伤害问题,提出了适应煤层气储层的钻井工艺和完井方式,并着重介绍了各种煤层气井钻井工艺和完井技术,分析结果说明:采用欠/微平衡钻井工艺与裸眼完井、动力洞穴完井和套管射孔压裂完井等完井技术配套开发煤层气,有利于减小对储层的伤害,从而提高采气量。
在分析國內外主要煤國煤層氣資源量基礎上,可看齣中國的煤層氣儲存量非常豐富,雖然煤層氣的開髮利用能大大改善我國能源結構,在一定程度上解決能源供給不足,但是不閤理的煤層氣井鑽、完井方式會對儲層造成傷害,影響產氣量。因此,針對儲層的傷害問題,提齣瞭適應煤層氣儲層的鑽井工藝和完井方式,併著重介紹瞭各種煤層氣井鑽井工藝和完井技術,分析結果說明:採用欠/微平衡鑽井工藝與裸眼完井、動力洞穴完井和套管射孔壓裂完井等完井技術配套開髮煤層氣,有利于減小對儲層的傷害,從而提高採氣量。
재분석국내외주요매국매층기자원량기출상,가간출중국적매층기저존량비상봉부,수연매층기적개발이용능대대개선아국능원결구,재일정정도상해결능원공급불족,단시불합리적매층기정찬、완정방식회대저층조성상해,영향산기량。인차,침대저층적상해문제,제출료괄응매층기저층적찬정공예화완정방식,병착중개소료각충매층기정찬정공예화완정기술,분석결과설명:채용흠/미평형찬정공예여라안완정、동력동혈완정화투관사공압렬완정등완정기술배투개발매층기,유리우감소대저층적상해,종이제고채기량。
The analysis of the major domestic and overseas coal countries was based on CBM resources, it was found that Chinese CBM development foreground is very considerable, the development and utilization of coal bed methane (CBM) can greatly improve our country's energy structure, to a certain extent, also solve the en- ergy supply, but the unreasonable drilling and well completion technology to use, which will cause the damage to formation, and the influence of reservoir gas production. Therefore, aim at reservoir problems, and the pa- per put forward the adaptive CBM reservoir drilling technology and completion way, and emphatically intro- duces various drilling technology and coalbed methane well completion technology, the conclusion of the analy- sis shows that the cooperation to use the underbalanced drilling technologies and well completion technology ( open-hole completion, power cave completion and casing perforating fracturing) , which could support devel- opment of CBM reservoir, help to reduce the damage, thus improve the quantity of CBM.