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泥浆转化为水泥浆 (Mud -To -Cement,简称MTC)技术是利用钻井液的降失水性和悬浮性 ,通过加入廉价的高炉水淬矿渣 (BFS)和激活剂 (BAS) ,将钻井液转化为完全可以与油井水泥浆相媲美的固井液。固井作业中 ,因常规水泥与钻井液难以相容 ,造成固井水泥污染 ,严重影响固井质量。设计密度为 1.5 0～ 1.6 0 g/cm3 泥浆固井液体系 ,该体系以矿渣为水化材料 ,再加入激活剂 ,通过室内试验和现场应用 ,结果表明 ,该技术能提高固井质量 ,降低固井成本。在中原油田MTC固井技术首先在钻井三公司桥 5 7井等 10口井的中完固井中获得了成功现场应用 ,取得良好的经济效益和社会效益 ,并推广应用
Mud-To-Cement (MTC) technology utilizes the loss of water and suspensibility of drilling fluid and adds drilling fluid (BFS) and activator (BAS) Converted to a cementing fluid that is comparable to well cement. Cementing operations, due to conventional cement and drilling fluid compatibility, resulting in cementing cement pollution, seriously affecting the cementing quality. The designed slurry cementing fluid with a density of 1.5 0 ~ 1.6 0 g / cm3 was prepared by using slag as the hydration material and adding activator. The results of laboratory tests and field application show that the technology can improve cementing quality and reduce Cementing costs. In the Zhongyuan Oilfield MTC cementing technology, first of all, successful field applications were obtained in the middle cementing wells of 10 wells such as Well No.3 and Well No. 5 in Well Drilling Company, which achieved good economic and social benefits and promoted its application