CAJ | 학술논문

商河县地热井资源丰富，蕴藏量巨大，其热储含水层主要为新近系馆陶组以及古近系的东营组。通过区内施工的4个地热井的钻效分析，认为：①采用电动机作为动力的4#地热井施工工期明显优于其他3口采用柴油机作动力的；②本区构造较简单，断层稀少，，分阶段使用PDC钻头可以将施工工期大大缩短；③泥浆泵的泵量达到或接近钻孔的环空最低上返速度时，可有效携带岩屑，建议泥浆岩屑上返速度不低于0.5m/s；④使用Ф127mm钻杆代替Ф89mm钻杆，可使钻杆的抗扭强度增加，保证施工的安全；⑤地面使用泥浆罐配备除泥器间断性除泥，保证泥浆液面高于泥浆泵阀室，泥浆靠自重流入泥浆泵阀室内，降低了泥浆泵从循环沉淀池抽吸功耗与节省吸入阀磨损。对比结果可为该区进行地热井施工提供借鉴。
상하현지열정자원봉부，온장량거대，기열저함수층주요위신근계관도조이급고근계적동영조。통과구내시공적4개지열정적찬효분석，인위：①채용전동궤작위동력적4#지열정시공공기명현우우기타3구채용시유궤작동력적；②본구구조교간단，단층희소，，분계단사용PDC찬두가이장시공공기대대축단；③니장빙적빙량체도혹접근찬공적배공최저상반속도시，가유효휴대암설，건의니장암설상반속도불저우0.5m/s；④사용Ф127mm찬간대체Ф89mm찬간，가사찬간적항뉴강도증가，보증시공적안전；⑤지면사용니장관배비제니기간단성제니，보증니장액면고우니장빙벌실，니장고자중류입니장빙벌실내，강저료니장빙종순배침정지추흡공모여절성흡입벌마손。대비결과가위해구진행지열정시공제공차감。
The Shanghe area has abundant geothermal resources;heat reservoir aquifers are mainly in the Neogene Guantao Formation and Paleogene Dongying Formation. Through drilling efficiency analysis of 4 geothermal wells in the area, considered that:①drilling period of No.4 geothermal well using electromotor is obviously shorter than other three using diesel engine;②geological structure is simple in the area with rare faults, using PDC bit stepped cutover can greatly shorten drilling period;③mud pump volume arrives to or near drilling annular space minimum return velocity, can effectively carry chips, suggested mud chip return velocity not less than 0.5m/s; ④ using Φ127mm rod instead of Φ89mm can improve rod torsion strength to ensure drilling safety; ⑤ using surface mud tank equipped with desilter to intermittently desilting, ensuring mud level higher than pump valve chamber, mud can flow into the chamber by gravity, thus lowering down mud pump power consumption for pumping from mud settling sump and saving suction valve abrasion. The compared result can be reference for geothermal well construction in the area.