新的含硼微泡沫钻井液的应用性能

Application Performance Study on a New Micro-foam Drilling Fluid with Boron

用含硼特种表面活性剂RDEB作微泡沫钻井液的起泡剂,在其用量为1.0%时,体系起泡性较好且稳定性强,稳定时间大于24h。另外,RDEB与常用钻井液添加剂的配伍性好,以其构成的微泡沫钻井液流变性、失水造壁性能良好,抗温、抗污染能力强,能满足油气藏复杂易漏地层的需求。将含硼特种表面活性剂RDEB应用于微泡沫钻井液体系,不但开发了一种新型的微泡沫钻井液起泡剂,还为其在油田化学的应用指明了新的方向。

Take the surfactants with boron RDEB as the foaming agent to micro-foam drilling fluid system, the system has advantages of good foaming tendency and stability when its content is 1.0%, the settling time may reach above 12 h. Moreover, RDEB has good compatibility with the chemical additive commonly used in drilling fluid. The micro-bubble drilling fluid system has advantages of rheological property, dehydration wall-building properties, temperature resistance and anti-pollution capacity, which can satisfy the demands of complexity oil and gas reservoir formation when used RDEB as foaming agent. RDEB is applied in micro-bubble drilling fluid system, which not only develops a new kind of foaming agent, but also provides a new direction for its application in oilfield chemistry.