Aphron钻井液是一种具有高剪切稀释性的水基钻井液,它含有一种稳定的充气泡沫(Aphrons),已在世界范围内成功地应用于衰竭产层和其他高渗透性地层的钻进。该钻井液能封堵漏层且几乎不会对地层造成永久伤害。一方面,Aphrons在岩石孔隙网络内形成一层内封堵层,能有效降低钻井液的侵入速度;另一方面,Aphrons在产液采出过程中很容易去除,对地层造成的伤害很小,同时也大大减少了洗井作业。 Aphron Drilling Fluids is a high-shear, water-based drilling fluid that contains a stable, gas-filled foam (Aphrons) that has been successfully used throughout the world for drilling in depleted formations and other highly permeable formations Enter. The drilling fluid can plug the leaky layer with little or no permanent damage to the formation. On the one hand, Aphrons forms an internal plugging layer in the rock pore network, which can effectively reduce the intrusion rate of drilling fluid. On the other hand, Aphrons can be easily removed during production and fluid production, At the same time also greatly reducing the washing well operations.