Clear-Brine液体

危害最小的完井盐水

通过减少地层损害来提高产量

M-I SWACO offers a comprehensive portfolio of clear-brine fluids that are displaced in the well once the drilling phase has been completed. These completion fluids are designed to minimize formation damage and control reservoir formation pressures.

Our clear-brine completion fluids are typically prepared with soluble salts for density. These fluids are blended to certain specifications to take into consideration densities, 凝固点(TCT), 压力/温度凝固点, and clarity.

Among our clear brine fluids are specially engineered formate and halide brine solutions.

卤化物和混合物

We offer a variety of halide brines and brine blends that are formulated to meet project requirements. These fluids can be used for completion, workover, or packer fluid applications.

氯化铵 (dry)—suitable for low-density operations and as a clay and shale inhibitor (using 2% to 4%)
溴化钙 (liquid or dry)—inhibits hydration and migration of swelling clays (also available as either a calcium bromide/calcium chloride or zinc bromide/calcium bromide blend)
氯化钙 (liquid or dry)—reduces formation damage caused by solids or clay swelling, clay dispersion, 或者粘土和固体的迁移
氯化钾 (liquid or dry)—stabilizes shale in water-sensitive clay and shale formation and clay-containing sandstones
Sodium bromide (liquid or dry)—eliminates potential of formation damage due to precipitation of carbonate, bicarbonate, and sulfate compounds (also available as a sodium bromide/sodium chloride)
Sodium chloride (liquid or dry)—suitable for low-density operations such as shallow low-pressure wells that do not require the special inhibitive properties of calcium or potassium systems

Formate brines

Formate salts are extremely soluble in water and form high-density, solids-free brines—reducing the need for weighting agents. M-I SWACO has a long history of engineering formate-based brine systems for various global applications, and the following brines and blends thereof provide the basis for our latest breakthrough in fluids engineering: