Summary
DOC-HIWI is composed of different mesh iron ore powder with special grinding treatment as weighing materials, reinforcement materials and other additives as auxiliary materials. It has the characteristics of high density, good flowability, good settlement stability and high strength. The particle size gradation technology of high density cement slurry system reduces the porosity and improves the compactness of cement and the whole performance of the cement slurry cooperated with other additive materials. High density cement slurry system can be divided into three series according to the temperature and the well condition.
Series Constitution
DICO-HIWI system includes :
DICO-HIWI LT General high density cement slurry system: suitable for general cementing, medium and low temperature high pressure well cementing.
DICO-HIWI HT High temperature and high density cement slurry system: suitable for high temperature and high pressure well cementing.
DICO-HIWI SL Salt water and high density cement slurry system: specific to salt-Gypsum Beds cementing.
System Composition
1、Oil well cement: class G.
2、Mixing water: fresh water.
3、Weighting agent: iron ore powder of 1200mesh/200mesh.
4、Anti-channeling enhancer: DOC-GS12L , DOC-GS12S.
5、Lost circulation agent: DOC-B62S , DOC-B66S.
6、Fluid loss additive: DOC-G80L , DOC-G86L , DOC-G90L.
7、Retarder: DOC-H21L , DOC-H42L , DOC-H50L , DOC-H100L.
8、Dispersant: DOC-F44L , DOC-F45L , DOC-F44S.
9、Defoamer: DOC-X60L.
System Advantages
1、Three sizes particles gradation technology.
2、Compactness and low permeability of cement paste.
3、Good settlement stability of cement slurry.
4、Has certain ability of fluid loss controlling and anti-channeling.
ity cement slurry system can be divided into three series according to the temperature and the well condition.
