... performance of fibrous fluids in horizontal wells using a large-scale flow loop. The flow loop has a 48-ft long annular test section that has a 5-inch wellbore and 2.375-inch drill pipe. In each experiment, the solids bed is initially formed in the annulus with natural sand that has similar particle size...

.... The study is aimed to establish an accurate mechanistic model for optimizing wellbore cleanout in horizontal and inclined wells. The new CTV model is established to predict the initiation of bed particle movement during cleanout operations. The model is formulated considering the impact of fiber using...

... the settling velocity of particles in fluids due to the formation of a fiber network. This study is aimed to investigate wellbore cleanout and hydraulics of fibrous fracturing fluid in horizontal and inclined wells. Cleanout experiments were carried out using Xanthan gum suspensions with and without fiber...

... Abstract Coiled Tubing (CT) is widely used in wellbore cleanout operations to remove solid particles such as drilled solids or residual proppant from the hydraulic fracturing treatments. The cleanout operation is often associated with inefficiency and substantially increases the operational...

... in sandstone reservoirs are negatively charged. For example, isoelectric point for kaolinite is 5.25 ( Braggs et al. 1994 ). This means that particles of kaolinite possess a net positive charge at pH values less than 5.25, and a net negative charge at pH values above 5.25. Corrosion inhibitors...

... Upstream Oil & Gas plug part particle Boundary Layer Scenario Introduction Well cleanouts are the most common type of service performed by the CT service industry, accounting for over 50% of all coiled tubing operations on a worldwide basis. While well cleanout covers a wide range...

... monitoring hydraulic jet pump proppant Drillstem Testing fracturing fluid concentration Upstream Oil & Gas intake particle backward nozzle Coiled tubing operations drilling operation cleanout BHA production control multiphase pump hydraulic fracturing Directional Drilling drillstem/well...

...-containing drilling fluids are used in the field. Although field observations are encouraging, currently very little is known about flow behavior, hydraulics and cuttings transport efficiency of fiber sweeps. There is a great need for understanding how fiber particles enhance the cleaning capabilities...

... information is now available to facilitate informed decisions and achieve reliable engineering solutions, utilizing a sophisticated particle transport model. A methodical thought process, based on extensive research and mathematical modeling, will be presented for designing specific well bore cleanouts...

... without the necessity to cycle the coiled tubing between impacts, therefore significantly reducing low-cycle pipe fatigue. Additionally, when a fish is stuck in sand or debris, temporarily suspending or liquefying sand particles by lighter high frequency blows as delivered by an impact tool while over...

..., shape and density of the particles greatly influence their dynamic behavior in flowing media. Terminal velocity, drag and gravity forces and shear stresses are affected by particle properties and the rheology of the circulation fluid. This paper presents the results of a solids transport study on four...

... smaller production tubing. coiled-tubing system terminal velocity upward jet net flow management upstream oil & gas coiled tubing operations convection conduction particle flow rate fluid velocity completion installation and operations efficiency wellbore fluid loss slung...

...) fluids have been investigated. The results from the Computational Fluid Dynamics (CFD) simulations for the flow of these fluids in straight as well as coiled tubing are provided. The velocity profiles and sand concentration profiles for each case are presented which provide insight into the particle...

... discussion on reverse circulating, held September 18, 2003, in Houston, TX. application procedure society of petroleum engineers completion installation and operations forward circulation coil particle nozzle coiled tubing operations valve spe 89505 circulation cleanout cleanout well...

... drilling new system nozzle effective cleanout friction pressure wellbore cleanout viscous fluid flow rate bottomhole temperature particle cleanout viscosity cleanout process cleanout system drilling operation upstream oil & gas test loop nozzle design cleanout fluid software...

... monitoring particle Introduction The water quality constant variation throughout the well life, in the majority of the cases, is one of the main factors for the inorganic scale formation, especially where the driver aquifer is maintained by sea water injection. Normally on those situations...

... in annuli. layer model concentration friction factor solid concentration upstream oil & gas particle drilling operation flow pattern modeling suspension prediction suspension velocity newtonian fluid correlation dispersion coefficient equation diameter flow rate efficient cutting...

... it suitable to simple wells, focusing on low-cost, lower-tech operations as opposed to difficult applications. The first case histories are included. particle pump pressure friction reducer spe 81744 application nitrogen lance portman flow rate vertical well coiled tubing operations upstream...

... to predict the friction loss increase over base gel friction. The coiled tubing erosion mechanisms (sliding abrasion, random particle impact, and directional particle impact) have been discussed. The abrasion by sliding sand bed is believed to be the dominant erosion mechanism. mgal guar base gel...

... reservoir surveillance pressure distribution particle particle flow rate fluid dynamics experiment condition experimental study flow rate air mist drilling annular temperature theoretical model wellbore enhanced recovery production control underbalanced drilling determination completion...