钻井泥浆助剂
Current location: Home >> News >> Industry

ContactContact

Hebei Huayun Hongye Chemical Co., Ltd

Telephone:manager zhang:13582118730

                          Manager Liu:13832190992       

                     manager zhang:13643300636

mailbox:huayunhongye@163.com

website:www.huayunhongye.cn

Address: No. 39 Xingze Road, South District, Shenze Economic Development Zone, Hebei Province


According to its function, drilling fluid has

2020-03-21 H:33:56
second

Drilling mud additives

image.png

1) Weighting agent

When the fluid column pressure of the drilling fluid cannot balance the formation pressure a blowout needs to be killed, it is necessary to add weighting agent to the system to increase the specific gravity of the drilling fluid to balance the formation pressure prevent blowout accidents. The commonly used weighting agent is Baryte (BaSO4)

2) Fluid loss agent

In order to reduce the filtration of drilling fluid into the formation ensure wellbore safety, the chemical agent used to protect the stability of the mud colloid is called a fluid loss agent.

The commonly used filter loss agents currently include:

Carboxymethyl cellulose, hydroxyethyl cellulose, modified starch, etc. These products can be dispersed in water but dissolved to block pores in the formation, prevent filtration, because they are oil soluble, they will block oil gas channels. At the same time, they can also be used in completion fluids, workover fluids, perforation fluids.

3) Dispersant (also known as diluent)

When the clay drilling cuttings in the drilling fluid reach a certain concentration, a spatial network structure will be formed. When drilling into a salt gypsum layer, the dissolved salts in the formation water, especially high valent cations, will exacerbate the formation of the network structure, resulting in poor fluidity of the drilling fluid. An additive that can break down this network structure, release free water, reduce the viscosity shear force of drilling fluid is called a dispersant. Commonly used dispersants include lignin sulfonates their complexes with iron chromium, titanium, manganese, tin ions.

Label

Copyright © Hebei Huayun Hongye Chemical Co., Ltd Icpcode:冀ICP备20005811号 Sitemap | RSS | XML
Support:modianyun