American Petroleum Institute Purchasing Guidelines Handbook API ® Monogram ® Equipment API Specification 13A 18th Edition, August 2010 Specification for Drilling Fluids – Specifications and Testing Specification for Drilling Fluids – Specifications and Testing Table of Contents 1.0 General 1.1Evaluation Base Clay 1.2 Calibration Barite 1.3 Test Calibration Bentonite 1.4 Documentation Requirements 1.5 Shipping Requirements.. read more →

Hydroxy ethyl cellulose is a nonionic polymer in the appearance of white or slightly yellowish plush-like powder. It is prepared from the alkali cellulose and ethylene oxide (or chloroethanol) by the etherification reaction, and belongs to the non-ionic soluble cellulose ethers,  non-toxic and tasteless. HEC has good thickening, suspending, dispersing, emulsifying, adhesion, film-forming, water-protecting and.. read more →

As a kind of treating agent to improve the performance of drilling and completion fluids, Sodium carboxymethyl Cellulose has a main role in reducing fluid loss and increasing viscosity. Sodium carboxymethyl Cellulose is easily dispersed in all water-base drilling fluids and applicable from fresh water to saturated salt water drilling fluids. In low-solid and solid-free.. read more →

Contrast Experimental Study on Polyanionic Cellulose under the Standards of Different Oil Companies at Home and Abroad   As a water-soluble ionic cellulose ether, Polyanionic Cellulose has thickening, dispersion, film formation, adhesion, protective colloid and other properties. Usually its sodium salt is applied. It is in the appearance of white powder, very strong in dilution, soluble.. read more →

Prospects of Polyanionic Cellulose   PAC, short for polyanionic cellulose, is a water-soluble cellulose ether derivative made from natural cellulose by chemical modification, and usually the sodium salt of PAC is in application. PAC is in the appearance of white powder, non-toxic, odorless, and soluble in water to form a viscous solution. Due to the.. read more →

Special Effects of Hydroxyethyl Cellulose in Oilfields  Hydroxyethyl cellulose has some application in the textile industry, food products, pesticides, cosmetics and other aspects. Especially in the oilfield, it plays a very special effect and can not be replaced by other products. Hydroxy ethyl cellulose (HEC) has thickening, suspending, dispersion, water retention and other outstanding performance.. read more →

Effects of Hydroxy Ethyl Cellulose in Oil Drilling Hydroxy Ethyl Cellulose  has thickening, suspending, dispersion, water retention and other outstanding performance and are widely used in many industrial sectors. Especially in the oil fields, HEC performs very well in drilling, completion, workover and fracturing processes. It is mainly used as a thickener in brine, in.. read more →

Application of Hydroxyethyl cellulose  in Drilling Fluid The drilling fluid with the addition of Hydroxyethyl cellulose  is commonly used in hardrock drilling and drilling under other special circumstances such as in the shale layers with leakage control of the circulating water, excessive water loss, abnormal pressure, or being rugged. In spudding and large hole drilling.. read more →

Precautions and Preventive Measures of Hydroxyethyl Cellulose in OilDrilling   1. Preparation HydroxyEthyl Cellulose (HEC) has a remarkable feature, that is, when it is added to the slightly acidic water, it has the effect of delaying producing the viscosity. The period of time needed from the start to thickening helps HydroxyEthyl Cellulose particles to be uniformly and.. read more →

Application of Hydroxyethyl Cellulose in the Fracturing Fluid in Oil Drilling   The Fracturing Fluid in Oil Drilling In the oil fracturing fluid, Hydroxyethyl Cellulose can provide with viscosity. And Hydroxyethyl Cellulose itself has no effect on the oil reservoir, won’t plug the oil passage and can fracture oil wells. Meanwhile, it also has the general characteristics.. read more →