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Established in 2001, Puyang Zhong Yuan Restar Petroleum Equipment Co.,Ltd, “RSD” for short, is Henan’s high-tech enterprise with intellectual property advantages and independent legal person qualification. With registered capital of RMB 50 million, the Company has two subsidiaries-Henan Restar Separation Equipment Technology Co., Ltd We are mainly specialized in R&D, production and service of various intelligent separation and control systems in oil&gas drilling,engineering environmental protection and mining industries.We always take the lead in Chinese market shares of drilling fluid shale shaker for many years. Our products have been exported more than 20 countries and always extensively praised by customers. We are Class I network supplier of Sinopec,CNPC and CNOOC and registered supplier of ONGC, OIL India,KOC. High quality and international standard products make us gain many Large-scale drilling fluids recycling systems for Saudi Aramco and Gazprom projects.

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pH Analysis - OFI Testing Equipment Inc.
pH Analysis - OFI Testing Equipment Inc.

Field measurements of drilling ,fluid, and filtrate ,pH, are fundamental to drilling ,fluid, control. Clay interactions, solubility of components and contaminants, and overall effectiveness of additives are all dependent upon ,pH,. Acidic and sulfide corrosion control is also closely monitored by keeping a close watch on ,pH, values.

pH In Drilling Mud Testing Procedures - Drilling Manual
pH In Drilling Mud Testing Procedures - Drilling Manual

17/11/2020, · The procedure for using pH strips in drilling fluid test is as follows: 1., Place the pH strip face down on a sample of fluid or filtrate (i.e. coloured indication squares in contact with the fluid), and leave for several seconds until no further color changes are observed on the, pH strip.

pH - FANN®
pH - FANN®

The term ",pH," denotes the negative logarithm of the hydrogen ion, H+, activity in aqueous solutions: ,pH, = -log (H+) Field measurement of ,drilling fluid, or filtrate ,pH, and adjustments to the ,pH, are fundamental to ,drilling fluid, control.

Why pH Levels are Important When Mixing Drill Mud
Why pH Levels are Important When Mixing Drill Mud

Drilling fluid additives were developed to be mixed with water with a pH level from, 8.5 to 10, in order for the required chemical reaction to occur and to provide a proper yield. Most water sources range from 5.5 to 7.5 which is too low.

pH – Drilling Fluids Explored
pH – Drilling Fluids Explored

Water Based ,Drilling, Fluids and its Types – Part_01 Mud has a great impact on the stability, safety, cost and production potential of wells. The mud properties should be designed to minimize potential hole problems (such as seen in offset wells) and meet other goals.Casing points are often designed to separate pressure regimes.

pH Testing of Drilling Fluids - Newsroom - OFI Testing ...
pH Testing of Drilling Fluids - Newsroom - OFI Testing ...

pH analysis is fundamental to, drilling fluid, control. The pH of the, fluid affects clay, dispersion and the solubility and effectiveness of chemical additives. A change in pH while drilling often indicates contamination by substances such as cement, gypsum, or carbon dioxide.

How To Decrease Ph In Drilling Fluid - Drilling Fluids ...
How To Decrease Ph In Drilling Fluid - Drilling Fluids ...

11/3/2021, · How To Decrease Ph In Drilling Fluid. Last Updated on Thu, 11 Mar 2021 | Drilling Fluids. HCO3- ® H+ + CO3=., Bicarbonate Hydrogen Carbonate., Generally, increased pressure results in the increased solubility of CO2 in water.

pH-Responsive Water-Based Drilling Fluids Containing ...
pH-Responsive Water-Based Drilling Fluids Containing ...

Effect of ,drilling, mud bentonite contents on the ,fluid, loss and filter cake formation on a field clay soil formation compared to the API ,fluid, loss method and characterized using Vipulanandan models. Journal of Petroleum Science and Engineering 2020, 189 , 107029.

Scandinavian Oil-Gas Magazine
Scandinavian Oil-Gas Magazine

Scandinavian ,Oil,-,Gas, Magazine is your premier source for in-depth information on developments within the ,oil, & ,gas, industry in the Northern Seas. The magazine covers all areas of the offshore industry, from policy to platforms, research to rig retirement.

Drilling Knowledge: pH in the drilling mud
Drilling Knowledge: pH in the drilling mud

PH, is a value representing the concentration of hydrogen ions in the liquid. We use it to indicate the acidity or alkalinity of the ,drilling mud, in particular water-based mud.General talk ,pH,.The ,pH, is presented in a numerical value (0-14) which means an inverse measure of …

(PDF) Formulation of Water-Based Drilling Fluid Using ...
(PDF) Formulation of Water-Based Drilling Fluid Using ...

The addition of soda ash (Na 2 CO 3) to the local clay mud increased the formulated drilling fluid's pH value as well as the rheological properties (Table 4). As shown in Table 4, the local clay mud pH value increased from an initial value of 5.56 to 9.60 (70%) at a concentration of 5.0g of soda ash (Na 2 CO 3) to 350mL of the local clay mud.

pH – Drilling Fluids Explored
pH – Drilling Fluids Explored

Water Based Drilling Fluids and its Types – Part_01 Mud has a great impact on the stability, safety, cost and production potential of wells. The mud properties should be designed to minimize potential hole problems (such as seen in offset wells) and meet other goals.Casing points are often designed to separate pressure regimes.

MUD WEIGHT MARSH FUNNEL VISCOSITY AND pH Drilling Fluid ...
MUD WEIGHT MARSH FUNNEL VISCOSITY AND pH Drilling Fluid ...

HYDROGEN ION CONCENTRATION (,pH,): Theory. The acidity and the alkalinity of the drilling ,fluid, can be measured by the concentration of the (H+) ion in the ,fluid,. As for instance, if H+ is large (1 x 10-1), then the (OH-) hydroxyl concentration is very low (1 x 10- 13), the solution is strongly acidic.

The effects of ph value of drilling fluids on mud additives
The effects of ph value of drilling fluids on mud additives

The factors affecting the pH values of drilling fluids and the negative effects of the pH values, > 12, of, < 8, were studied. NaOH should be added promptly in increasing the pH values of drilling...

Research on the effect of drilling fluid’s pH value on the ...
Research on the effect of drilling fluid’s pH value on the ...

Drilling fluid, contacts with the surface of coal and fractures fully during the ,drilling, process for CBM, its ,pH, has direct impact on the wettability of coal, affecting the seepage of CBM further (Zhang and Wang 2000).Therefore, the ,drilling fluid,’s ,pH, value is an important performance index, and it is an important subject to do research about ,the effect of drilling fluid’s pH, value on the ...

Mud Weight Marsh Funnel Viscosity And pH - Drilling ...
Mud Weight Marsh Funnel Viscosity And pH - Drilling ...

(C) HYDROGEN ION CONCENTRATION (pH): Theory. The acidity and the alkalinity of the drilling fluid can be measured by the concentration of the (H+) ion in the fluid. As for instance, if H+ is large (1 x 10-1), then the (OH-) hydroxyl concentration is very low (1 x 1013), the solution is strongly acidic.

pH Analysis - OFI Testing Equipment Inc.
pH Analysis - OFI Testing Equipment Inc.

Field measurements of ,drilling fluid, and filtrate ,pH, are fundamental to ,drilling fluid, control. Clay interactions, solubility of components and contaminants, and overall effectiveness of additives are all dependent upon ,pH,. Acidic and sulfide corrosion control is also closely monitored by keeping a close watch on ,pH, values.

MUD WEIGHT MARSH FUNNEL VISCOSITY AND pH Drilling Fluid ...
MUD WEIGHT MARSH FUNNEL VISCOSITY AND pH Drilling Fluid ...

HYDROGEN ION CONCENTRATION (pH): Theory. The acidity and the alkalinity of the drilling fluid can be measured by the concentration of the (H+) ion in the fluid. As for instance, if H+ is large (1 x 10-1), then the (OH-) hydroxyl concentration is very low (1 x 10- 13), the solution is strongly acidic.

THE MAJOR WATER BASED DRILLING FLUID ADDITIVES - Drilling ...
THE MAJOR WATER BASED DRILLING FLUID ADDITIVES - Drilling ...

d) ,PH, control additives. Caustic soda NaOH is the major additive used to keep the ,pH, of the mud high. This is desirable to prevent corrosion and hydrogen embrittlement. The ,pH, of most muds lies between 9.5 and 10.5. Caustic potash, KOH and slaked lime, Ca(OH)2 may also be used. e) Removal of contaminants

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