CAJ | 학술논문

空气泡沫钻井技术由于有利于降低地层漏失、提高机械钻速、降低成本、发现和保护油气层以及能够有效处理地层出水等优点，近年来发展比较迅速。本文从保护井壁、提高井壁稳定性等技术要求出发，筛选了高效发泡剂、稳泡剂，研发了空气泡沫钻井用井壁稳定剂，形成了稳定泡沫钻井流体配方。室内页岩滚动回收实验和岩心浸泡实验结果表明，该泡沫配方具有较强的抑制性，能够较好地解决空气泡沫钻井中井壁失稳问题。
공기포말찬정기술유우유리우강저지층루실、제고궤계찬속、강저성본、발현화보호유기층이급능구유효처리지층출수등우점，근년래발전비교신속。본문종보호정벽、제고정벽은정성등기술요구출발，사선료고효발포제、은포제，연발료공기포말찬정용정벽은정제，형성료은정포말찬정류체배방。실내혈암곤동회수실험화암심침포실험결과표명，해포말배방구유교강적억제성，능구교호지해결공기포말찬정중정벽실은문제。
Air foam dril ing technology has many advantages such as higher penetration rate and lower cost. Moreover foam can reduce dril ing fluid leakage in fractured formations and can ef ectively handle large volumes of produced fluid in water-bearing stratum. So it has been developed rapidly in recent years. A foam fluid formula used for under balanced dril ing was developed in this paper by selecting ef ective foaming agent, foaming stabilizer, shale inhibitor and so on. The results abased on shale rol ing recovery experiment and core immersion experiment show that the foam fluid developed in this paper has favorable inhibited capability, and can ef ectively solve the hole instability problems in air-foam dril ing process. At the same time, the foam fluid has good temperature resisting property, which can meet the needs of foam dril ing in deep wel .