... The density of water-based mud cap is achieved by NaCl (or other suitable salt) and CaCO3. At higher densities of mud cap (up to 100 pcf) the concentration of CaCO3 can be as high as 255 ppb. This requires +/- 326 tons/day of CaCO3 which is dumped into loss zone of well bore. Part of this CaCO3...

... On the technical side, the benefits include: RT diagnosis of adverse mud properties and mud contamination events (such as excessive LGS loading, the occurrence of slow brine/oil kicks, etc.), allowing for quick mitigation or remedial action to be taken. RT drilling optimization...

... in demands and required standards. In this experimental study, Solanum tuberosum formulated biopolymer was used to improve the water based mud rheological properties and artificial neural network predicted data for (PV) plastic viscosity, (AP) apparent viscosity and (YP) yield point. Artificial neural...

... ABSTRACT: Rising demand in higher productivity as well as reducing drilling damages has encouraged companies to use mechanical earth modeling (MEM) for developing fields. Conventionally, in a safe mud weight window there are four different bounds which are employed by drillers to avoid...

..., the riserless mud recovery (RMR) technique was used. For the first time on the Norwegian Continental Shelf (NCS), MPC was used when cementing the surface casing. RMR compensates for drilling the overpressurized zones without a riser and blowout preventer (BOP), and MPC allows for pressurization and monitoring...

... to implementing MPD and managing the mud system. Drilling BHA configuration For the MPD system to work best, it requires accurate modeling and/or pressure while drilling (PWD) downhole tool in the drill string. For these HPHT wells, having PWD in the drillstring was not an option because loss circulation...

... Abstract Despite the associated waste management cost to comply with the international standards, Oil Base Mud (OBM) remains the drilling fluid of choice to drill trouble prone formations in PDO LLC, Oman drilling operations mainly through the formations of Fiqa Sharji, Nahr Umr, Khuf...

... Abstract This paper presents a more holistic approach to compare the drilling economics of Synthetic Oil Based Mud (SOBM or SBM) versus Water Based Mud (WBM) in onshore development drilling in India. Here, a key parameter which has been incorporated in the economics is the mud re-use...

... Mud erosion in the subsea stratified sand-mud beds is a concern for production of methane gas from methane hydrate. It is expected that eroded mud may lead to well blockage. The goal of our work is to model of mud erosion that damages gas production. To approach this, we have developed...

... will be dissociated, it is considered that dissociated gas and water flow will cause mud erosion phenomena of turbidite sediments. This research presents an experimental study to understand a mud erosion phenomenon for sand mud alternate layer. As the results, the driving forces of these phenomena...

... Abstract Interactions of reservoir with drilling and completion fluids, mud cake and mud filtration, lead to formation permeability damages which result in reduction of production rate. For increasing the production rate and treating the formation damage, normally Matrix Acidizing and Hydraulic...

... drilling fluid property emanuel stamatakis rheological property stability drilling fluid chemistry drilling fluid formulation wellbore stability shale shale gas novel water-base mud nanosilica particle shale stability nanosilica performance meghan riley nanoparticle drilling fluid selection...

...; therefore, the amount needed to be as low as possible. The material also needed to be compatible with the other mud additives without changing the rheology, show a good thermal stability, and be able to withstand contamination with solids. Nanosilica solutions are widely used in several industries and come...

..., differential pressure sticking, corrosion, and high formation temperatures ( Simpson 1978 ). However, when using a water-based mud, water movement from the mud to the shale results in swelling stresses and pore pressure increases that lead to wellbore failure. OBMs are water-in-oil emulsions that contain...

...Glycol Modes of Action Abstract Oil-based mud has been used in the last few decades in the drilling operation in the world. Due to high initial cost and environmental problems associated with oil-based mud, the application of this type of drilling fluids has been gradually reducing. This has...

...Environmental Compliance in the Outer Continental Shelf of Gulf of Mexico Abstract A uniquely designed water-based mud (WBM) was used in two shelf areas of the Gulf of Mexico to drill highly reactive gumbo sections. The drilling performance and inhibition in these shale intervals resembled...