Monitoring and controlling the potassium ion concentration for water based mud systems that use potassium for shale inhibition is important. It will deplete as it is adsorbed onto shales. Depletion must be monitored, and effective inhibition levels must be maintained in the mud system. The Potassium ion concentration is determined by adding excess Sodium Perchlorate …
Cation Exchange Capacity In Mud System This Methylene Blue Test Clay Content in drilling mud is used for measuring the Cation Exchange Capacity (CEC), which determines the reactive clays in the mud system. This article is one of the water-based drilling fluid testing procedures articles that handle the chemical testing of WBM. Equipment For Methylene …
The water-based fluid may contain chlorides from the base fluid (e.g., Sodium or Potassium Chloride) or may pick up chlorides while drilling. Chloride Test Drilling Mud is useful for determining any unexplained changes in water-based mud salinity because an increase or reduction in salinity will indicate salt or water contamination. So, It is important to …
Total Hardness as Calcium Drilling fluid total hardness test is one of 10 articles that handle Testing Procedures For water based mud to be a full guide for drilling engineers and mud engineers. Water “hardness” refers to water that contains dissolved Calcium and Magnesium salts, which in high concentrations will reduce the effectiveness of Bentonite …
The alkalinity is important in Water-Based Mud because it can affect the performance of some treating chemicals in the water-based fluid, especially if they require alkaline conditions for effective performance. Sodium or Potassium Hydroxide usually provides the hydroxyl ions (OH–) for adjusting the pH of water-based fluids ( see also pH Test Procedures). However, carbonate …
pH In drilling mud is one of the major mud properties for monitoring as it had an effect on clay interactions, corrosion processes and solubility of certain chemicals. Drilling Mud pH can be measured using pH Strips or a pH Meter, as follows. According to above, we will present the steps of PH in drilling …
The following drilling mud testing equipment & procedures have been standardized by internationally accepted ANSI/ API RP 13B-1 Fourth Edition, March 2009 (Recommended Practice for Field Testing Water-Based Drilling Fluids), which is identical to ISO 10414-1: 2008 (Field Testing of Drilling Fluids Part 1 for Water-Based Mud). But first, before going in-depth on our subject, …
Precautions must be taken when performing mud checks because dangerous chemicals are often used and some of the mud testing equipment is subjected to high temperatures and pressures. Some basic rules for the mud lab are as follows:- IADC Safety Alert: Catastrophic Failure of 50 cc Retorts This alert was released following two catastrophic failures …
The following Marsh funnel viscosity test procedure is used for measuring funnel viscosity for Water Based Mud, Oil Based Mud, or completion fluid: Calibration checks should be made periodically, using the procedure detailed above, by filling the Marsh Funnel with fresh water and recording the time to discharge 1 quart of water, which should take …
By definition, abnormal pore pressure is any geo-pressure different from the established trend for the given area and depth. This article will introduce the six significant causes of abnormal pressure while drilling. Also, in the following articles, we will discuss its prediction and more. Pressure may be Subnormal pressures present few direct well-control problems. However, …
