CAJ | 학술논문

螺杆钻具钻进因机械钻速高、经济效益明显而在石油、煤田地质等钻探施工中广泛使用，技术也比较成熟，但在地热井钻探施工中还处于摸索试验阶段。就螺杆钻具在地热井钻探中的设备配套、钻进工艺、效益对比等一系列问题进行了阐述，肯定了螺杆钻具在地热井钻探中的钻进效率和经济效益，同时提出了一些需要在今后实践中解决的问题。
라간찬구찬진인궤계찬속고、경제효익명현이재석유、매전지질등찬탐시공중엄범사용，기술야비교성숙，단재지열정찬탐시공중환처우모색시험계단。취라간찬구재지열정찬탐중적설비배투、찬진공예、효익대비등일계렬문제진행료천술，긍정료라간찬구재지열정찬탐중적찬진효솔화경제효익，동시제출료일사수요재금후실천중해결적문제。
Screw drill is a mature technology which is widely used in oil and coalfield geological drilling due to its high ROP and obvious economic benefit, but it is still at the experimental stage in the geothermal well drilling construction.The paper elaborates a series of issues of the equipment, drilling technology and the benefit comparison, affirms the drilling efficiency and economic benefits of screw drill in the geothermal drilling and puts forward some problems to be solved in future prac-tice.