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据悉,河南油田井下公司特种作业一部在安阳市龙试1井煤层气压裂施工取得成功。通过运用2000型压裂机组对该井段854～860 m 进行压裂改造,加入高密度陶粒38 m~3,注入液量达450 m~3。标志着河南省在煤层气井先导性开发技术取得新突破,为今后煤层气井先导性开发压裂施工提供了经验。煤层压裂改造可有效地将井孔与煤层天然裂隙连通起来,在排水采气时,更合理地分配井孔周围的压力降,增加产能和气体解吸速率,提高采收率。压裂改造作为一种重要的强化增产措施,在煤层气开采中得到
It is reported that a special operation of Henan Oilfield underground company in Anyang Long Test 1 well CBM construction success. Through the fracturing of 854 ~ 860 m in the section of well 2000 using the fracturing unit of type 2000, the high density ceramsite is added to 38 m ~ 3 and the injection volume is 450 m ~ 3. This indicates that Henan Province has made new breakthroughs in the pioneering development of coalbed methane wells and has provided experiences for the pilot development of coalbed methane wells in the future. Coal seam fracturing can effectively connect the wellbore with the natural fractures in the coal seam. In the drainage gas recovery, the pressure drop around the wellbore can be more rationally distributed, and the capacity and gas desorption rate can be increased and the oil recovery can be enhanced. Fracturing and transformation as an important enhancement stimulation measures, obtained in the exploitation of coalbed methane