Drilling powder for geological prospecting and preparation method thereof

Abstract

The invention belongs to the field of drilling of geological prospecting, and relates to drilling powder for geological prospecting and a preparation method thereof. The drilling powder is characterized by comprising the following raw materials in parts by weight: 700-750 parts of bentonite, 40-60 parts of emulsion polymer, 70-100 parts of sulfonated lignite, 40-70 parts of hydrolyzed polyacrylonitrile ammonium salt, 20-100 parts of lubricant, and 40-60 parts of barite. The drilling powder has multiple effects and strong applicability, is environment-friendly, has low preparation cost, and has the preparation method which is simple and easy to operate.

Description

technical field [0001] The invention belongs to the field of geological prospecting drilling, and relates to a drilling powder for geological prospecting and a preparation method thereof. Background technique [0002] In the construction of geological prospecting projects, highway high-speed railway foundation survey, water conservancy dam dam foundation survey and other constructions, drilling and coring must be carried out in order to fully understand the geological conditions of the drilled stratum. Safe and fast drilling requires a specific process during the drilling process, and various chemical treatment agents must be added. The added treatment agents can effectively stabilize the hole wall, prevent the hole wall from collapsing, and lubricate the drill bit. [0003] Due to the small diameter and shallow drilling depth of the drilling construction, the demand for treatment agents is small but the quality requirements are high, and because the drilling works are all c...

AI Technical Summary

Problems solved by technology

[0004] At present, among the products similar to this drilling powder, either the performance is single, or only focus on the product’s water loss reduction performance without considering the product’s lubricating performance, or only focus on the product’s mud drag reduction effect while ignoring the product’s performance. Dehydration effect; or the cost of the selected raw materials is relatively high, such as the use of positive gelatin of about 20,000 / ton, hydroxypropyl methylcellulose of about 20,000 / ton, etc.

In addition, other products did not consider the operability on site, because when the drilling powder is prepared into the drilling mud, it must be added in a stirring state. Due to the small particle size of the drilling powder, dust particles are easy to appear and disperse in the mud. Dust particles in the air are extremely harmful to the health of field workers