Field Implementation of a Novel Solids-Free System to Minimize Fluid Loss during Overbalanced Workover Operations (2010)

Field Implementation of a Novel Solids-Free System to Minimize Fluid Loss during Overbalanced Workover Operations Julio Vasquez; Julio Vasquez Halliburton Search for other works by this author on: This Site Google Scholar Bart Waltman; Bart Waltman Halliburton Search for other works by this author on: This Site Google Scholar Larry Eoff Larry Eoff Halliburton Search for other works by this author on: This Site Google Scholar Paper presented at the SPE EUROPEC/EAGE Annual Conference and Exhibition, Barcelona, Spain, June 2010. Paper Number: SPE-130210-MS https://doi.org/10.2118/130210-MS Published: June 14 2010 Cite View This Citation Add to Citation Manager Share Icon Share Twitter LinkedIn Get Permissions Search Site Citation Vasquez, Julio , Waltman, Bart , and Larry Eoff. "Field Implementation of a Novel Solids-Free System to Minimize Fluid Loss during Overbalanced Workover Operations." Paper presented at the SPE EUROPEC/EAGE Annual Conference and Exhibition, Barcelona, Spain, June 2010. doi: https://doi.org/10.2118/130210-MS Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentAll ProceedingsSociety of Petroleum Engineers (SPE)SPE Europec featured at EAGE Conference and Exhibition Search Advanced Search Abstract Controlling fluid loss into the formation is of critical importance during overbalanced workover operations to minimized near-wellbore damage invasion by the completion fluid, which can yield problems associated with poor wellbore cleanout and loss of hydrocarbon reserves. In addition, fluid loss can increase costs associated with rig time and treatments devoted to restore the initial condition of the formation. Traditional techniques to minimize fluid loss use solids or viscous pills, although it has been amply documented that these systems can damage the formation if not properly removed after the treatment.This paper presents the laboratory development and validation of a novel solids-free fluid-loss (SFFL) system used during overbalanced workover operations. This system relies on an ionic polymer that decreases matrix permeability to aqueous fluids, limiting leakoff into treated zones. This polymer immediately adsorbs to the surface of the rock, eliminating the need to shut the well in. In addition, this system does not require the use of breakers, which eliminates negative impact on post-stimulation well productivity. Laboratory test data show the capability of the material to control fluid leakoff and achieve high levels of regained permeability to hydrocarbons.To date, about 60 jobs have been performed with this novel SFFL system. The paper discusses field results from the application of this system during overbalanced workover operations and other applications where maintenance of a hydrostatic column is necessary for well control. This system has been proposed for solving partial and total loss to full circulation in overbalanced operations such as: (1) lost-circulation events occurring during cementing, fracturing, and drilling, (2) well intervention cleanouts by coiled tubing (CT) and hydraulic workover (HWO), (3) gravel packing, (4) replacement of artificial lift equipment (i.e., electrical submersible pumps), and (5) overbalanced tubing-conveyed perforating (UTCP), among others. Keywords: sffl system, annular pressure drilling, fluid-loss control, drilling fluid chemistry, drilling fluid selection and formulation, aqueous fluid, upstream oil & gas, flow in porous media, overbalanced workover operation julio vasquez, fluid dynamics Subjects: Pressure Management, Drilling Fluids and Materials, Reservoir Fluid Dynamics, Well control, Drilling fluid selection and formulation (chemistry, properties), Flow in porous media, Completion Installation and Operations Copyright 2010, Society of Petroleum Engineers You can access this article if you purchase or spend a download.