LABORATORY STUDY OF AQUEOUS ACCELERATED MATERIAL IN PETROLEUM ENGINEERING

The aqueous material is a kind of inorganic gelling material that can rapidly get solidificated under high water to cement ratio of 2.0~3.0, and then forms the cement bond with certain strength. Its performances that related to the petroleum engineering are tested, and the feasibility of using this material in petroleum engineering is also investigated.A kind of petroleum used aqueous material is developed, and the cement slurry mixed with this material can be used in the cementing operations of low formation pore pressure and in fragile formations, as its density reaches 1.2~1.3g/cm3, and strength after 24h is 3MPa, thickening time can be adjusted to 200~400mins. This material can also be used in MTC technology, to convert the waste drilling fluid into cement slurry. For its feature of long thickening time in flowing and fast solidification in static, it can be used in lost circulation plugging and water plugging. Sand control by this material is also possible when the particle size is controlled.