CAJ | 학술논문

鄂尔多斯盆地伊陕斜坡GHW2井是在陕西府谷庙沟门施工的一口页岩气探井，地层主要为千5、盒8、山西组、太原组、本溪组，钻进过程中坍塌掉块、破碎严重。针对现场破碎、坍塌掉块及水敏性地层钻探遇到的主要难题，研制了双聚防塌冲洗液体系。该体系具有护壁性、抑制性和胶结性。通过在GHW2井中的应用，取得了较好的护壁、护心效果，有效地保证了该项目的顺利施工。
악이다사분지이협사파GHW2정시재협서부곡묘구문시공적일구혈암기탐정，지층주요위천5、합8、산서조、태원조、본계조，찬진과정중담탑도괴、파쇄엄중。침대현장파쇄、담탑도괴급수민성지층찬탐우도적주요난제，연제료쌍취방탑충세액체계。해체계구유호벽성、억제성화효결성。통과재GHW2정중적응용，취득료교호적호벽、호심효과，유효지보증료해항목적순리시공。
GHW2 in Ordos basin is an exploration well for shale gas, serious collapsing, rock falling and breaking occurred in the drilling process.According to these conditions, bi-polymer anti-caving fluid system was developed, which has wall protection, inhibitory and cementation properties, and is mainly aiming at the main difficulties encountered in drilling con-struction in breaking, collapsing, block falling and water sensitive formations.This system was applied in GHW2 with good effects of wall protection and core integrity.