CAJ | 학술논문

针对塔里木盆地某矿区地层倾角大、硬度高、极其破碎，定向钻进钻遇地层含高放射性矿物且温度高，易发生卡埋钻事故及钻孔内高放射性矿物污染钻场环境等问题，选用抗高温具有良好流变力学性能的护孔配浆材料，采用正交实验设计方法，实验研究钻井液配方。优选出耐温达到100℃的不分散低固相聚合物钻井液体系 MV-CMC–80A51–NPAN 泥浆。该泥浆性能稳定，具有耐温高、失水量低、泥皮簿而致密、剪切稀释性能好、成本低的特点，可使硬岩破碎复杂地层的定向钻进顺利中靶。
침대탑리목분지모광구지층경각대、경도고、겁기파쇄，정향찬진찬우지층함고방사성광물차온도고，역발생잡매찬사고급찬공내고방사성광물오염찬장배경등문제，선용항고온구유량호류변역학성능적호공배장재료，채용정교실험설계방법，실험연구찬정액배방。우선출내온체도100℃적불분산저고상취합물찬정액체계 MV-CMC–80A51–NPAN 니장。해니장성능은정，구유내온고、실수량저、니피부이치밀、전절희석성능호、성본저적특점，가사경암파쇄복잡지층적정향찬진순리중파。
Aiming at the formation characteristics and directional drilling difficulties in a mining area of Tarim ba-sin, we have selected high temperature-resistant mixing materials with good rheological and mechanical properties to conduct experimental study on drilling fluid formulation by orthogonal experimental design method. The drilling mud system MV-CMC–80A51–NPAN with heat resistance of 100℃ and non-dispersed low solid polymer has been optimized. This mud has stable performance. Moreover, the mud has a high temperature resistance, low fluid loss, thin and dense mud skin, good shear dilution performance and low cost. It plays an important role for smooth di-rectional drilling in hard fractured complex rocks to reach the target.