... learned. geologist screen selection clastic rock mineral sedimentary rock geology drilling fluids and materials drilling fluid selection and formulation drilling fluid property sand control drilling fluid chemistry completion installation and operations formation damage generation 1...

... formation damage on well injectivity and weep efficiency. As depicted in Fig. 1 , the total phase fluxes can be calculated by integrating the horizontal velocities u gr and u wr within the intervals from zero to h for gas and from h to H for water, as described below: (5) U g...

... fluid management & disposal drilling fluid selection and formulation reservoir characterization mudstone interaction instability society journal rock type shale gas formation damage drilling fluid chemistry drilling operation shale drilling drilling fluids and materials wellbore...

... Abstract Formation damage can be a major challenge in maintaining the productivity and profitability of aging oil and gas wells. Traditional solutions, such as bullheading chemical treatments from the surface, often provide only a temporary boost in production and fail to address the root cause...

... gradually through time which prompted an assessment of formation damage, a list a of possible mechanisms was created and ranked according to their likelihood of occurrence, fines migration due to sand failure near wellbore was deemed to be the leading cause; this mechanism consists of fines entering...

... Summary The objective of this work is to describe the extent of productivity decline due to fines migration during periods of increasing water-cut. Two models are presented which allow for estimating the formation damage due to fines migration in both homogeneous and heterogeneous reservoirs...

... Abstract In many respects formation damage challenges in CO2 storage wells are similar to those in conventional oil and gas production wells and water and gas injection wells. But there are some differences from "conventional" well formation damage challenges. This paper outlines some issues...

... co 2 enhanced recovery co 2 reduction formation damage migration interaction petroleum engineer Introduction Carbon capture and storage (CCS) is a proven technology that can support the reduction of carbon emission worldwide. CO 2 can be stored in geological formations including...

... Abstract A study was carried out to examine Formation Damage mechanisms caused by drilling and completion fluids in onshore wells in Oman. A specific understanding of what caused any damage was important, as this data would be used to help select treatment fluid options and assess...

... Abstract The objectives of this paper are to diagnose and evaluate formation damage in water injector wells in the Dina Cretaceo, Palogrande, and Tello fields. It aims to analyze the characteristics of injection water, identify causes of damage, and assess the effectiveness of an acid...

... Abstract Fines migration is one of the most drastic causes for formation damage - the detached clays migrate and impairs well productivity. Two types of damaging clays are encountered in petroleum reservoirs: authigenic clays that grew on the grain surfaces during geological times, and detrital...

... Abstract The aim of this work is to develop an analytical technique for characterizing formation damage. The oil reservoir of the East Siberian Yaraktinskoe field suffers from salt and organic scales precipitation leading to skin damage. Besides, injection water has sulfates, which precipitate...

... permeability impairment due to aqueous fluids capillary trap is a well-studied phenomenon in low permeability reservoirs but has not received much attention in high permeability oil reservoirs. During the execution of some of these different pumping treatments, an apparent formation damage was observed during...

... Abstract Detecting and mitigating near-wellbore fines migration is important in order to avoid formation damage in many gas wells. This has bearing not only on gas production but also carbon capture through the geological storage of Carbon dioxide (CO 2 ), in pressurised, deep saline aquifers...

... for the producing wells. Equinor is committed to using sustainable, environmentally sound drilling fluid options. Therefore, the preference was to utilize a water-based drilling fluid with the application of a breaker after the lower completion was in place. A significant formation damage study was performed using...

... directly representative of the candidate field. The model builds on an earlier stimulation model developed for clastic reservoirs, which primarily addressed stimulation as a formation-damage-removal phenomenon; it maintains the 3-dimensional aspects of the earlier model but incorporates the substantially...

... Abstract Formation damage has received significant attention over many years as one of the primary reasons for well productivity impairment, to the detriment of completion damage. The objective of this paper is to redress this imbalance and to focus on the central role that completion damage...

... Abstract Oil and gas production or water injection is sometimes hampered by wellbore scales and fills (i.e., inner well flow impediments) as well as formation damage (skin) that impedes flow. Formation damage may reside in the near wellbore region but could also extend deep into the formation...

..., completion and filtercake breaker placement to ensure safe and successful open hole completions. drilling fluid chemistry enhanced recovery drilling fluid management & disposal formation damage drilling fluid property drilling fluid selection and formulation sand control drilling fluids...

... Abstract During the hydraulic fracturing of tight sands and shale reservoirs, ten thousands cubic meters of frac fluids were pumped into formation, while only 6-30% can be recovered. Frac fluids imbibed into formation matrix via capillary or forced pressure can cause formation damage...