CAJ | 학술논문

为了进行浅水湖泊水上煤田地质勘探，研究了相应的水上钻探技术。进行了泥浆污染性试验，测试了泥浆污染指标。施工中采用了封闭的泥浆循环系统，避免了泥浆对湖水的污染；基于勘探区新生界厚度大、地质构造复杂且湖区水位变化大的特点，采用新地层全程下放套管的方案，以保证井下采煤安全；通过探测湖水水位和湖底工程地质条件，进行船舶设计和航道设计，并选择合理的航道疏浚措施；针对因受交通条件限制、工作船不能运抵勘探区的问题，进行现场造船；从沉塔承载力及抗倾覆稳定性二个方面进行水上钻井平台设计。采用以上技术在淮南港河勘探区顺利完成了12个钻孔的施工，工期提前10个月。
위료진행천수호박수상매전지질감탐，연구료상응적수상찬탐기술。진행료니장오염성시험，측시료니장오염지표。시공중채용료봉폐적니장순배계통，피면료니장대호수적오염；기우감탐구신생계후도대、지질구조복잡차호구수위변화대적특점，채용신지층전정하방투관적방안，이보증정하채매안전；통과탐측호수수위화호저공정지질조건，진행선박설계화항도설계，병선택합리적항도소준조시；침대인수교통조건한제、공작선불능운저감탐구적문제，진행현장조선；종침탑승재력급항경복은정성이개방면진행수상찬정평태설계。채용이상기술재회남항하감탐구순리완성료12개찬공적시공，공기제전10개월。
In order to explore coal field in shallow lake , the drilling technology above water was developed .The test of drilling mud contaminating to water was made .Based on the result of the test , drilling mud was kept tight-ly sealed to avoid lake water being polluted by mud .Considering the exploration area with thick new formation , complicated structure and sharp levels varying , the casing was set through the whole new formation .Ships, wa-terways and its dredging measures were designed according the surveying results of the lake levels and engineer -ing geological conditions .Ships were produced at the spot to solve the problem that the ships can not be transpor -ted there from the shipyard because of the restrictions on the traffic conditions .Drilling platforms above water were designed according to the sinking tower capability and anti -overturning check .Having adopted these tech-niques , 12 boreholes were completed at Ganghe Lake in Huainan , duration advanced 10 months .