Results 141 to 150 of about 2,518,154 (206)

Formation Damage and Well Productivity Simulation

8th European Formation Damage Conference, 2009
Abstract In this paper we describe a simulation model for computing the formation damage imposed on the formation during overbalanced drilling. The main parts modelled are filter cake build-up under both static and dynamic conditions, fluid loss to the formation, transport of solids and polymers inside the formation including effects of ...
Arild Lohne, Liqun Han, Claas van Zwaag, Hans van Velzen, Anne-Mette Mathisen, Allan Twynam, Wim Hendriks, Roman Bulgachev, Dimitrios G. Hatzignatiou   +8 more
openaire   +1 more source

Technology Focus: Formation Damage

Journal of Petroleum Technology, 2018
Technology Focus Coreflooding is one of the principal tools through which we qualify drilling and completion fluids and assess the potential for formation damage, but is it relevant? By “relevant,” I mean does it give an accurate portrayal of the likely performance of the selected fluids in terms of potential damage and how effectively a
openaire   +1 more source

Formation of ion damage tracks

Physics Letters A, 1984
The formation of damage tracks in insulators from the passage of energetic (MeV/amu) ions indicates that the energy lost by an ion to electronic excitation is partially transferred to atomic motion. It is known that a track consists of localized regions of extended defects that are separated by lengths that exhibit only point defects.
Tombrello, T. A., Wie, C. R., Itoh, Noriaki, Nakayama, Takeyoshi   +3 more
openaire   +2 more sources

Detection Of Deep Formation "Damage"

Annual Technical Meeting, 1968
Abstract The characteristics of deep formation "damage" and low permeability appear quite similar on a formation test conducted in a normal manner. As a result, with such tests, a good reservoir with deepdamage appears quite similar to a poor reservoir with low permeability.
M. Lebourg, A.T. Campbell, E.J. Witterholt   +2 more
openaire   +1 more source

Damage formation in polymers

International Journal of Engineering Science, 1984
Abstract This paper describes the application of a NAG (Nucleation And Growth) computational model to void accumulation during quasistatic tests of polymers and discusses some experimental techniques used to detect and quantify damage (i.e., void or microcrack accumulation) in these materials. The experimental techniques described here are ultrasonic
openaire   +1 more source

DNA Damage Focus Formation Assay

2019
Advanced techniques allow investigating cellular DNA damage measurements. Ionizing radiation produces multiple DNA damages. Among them, DNA double strand breaks are most toxic to cells. DSBs can form mutations, chromosome aberrations, and cell killing.
openaire   +2 more sources

Pyrobitumen Induced Formation Damage Problems

SPE Formation Damage Control Symposium, 1996
Abstract Pyrobitumen is a black solid insoluble carboniferous deposit derived from thermal degradation of hydrocarbons. Although the organic material has been observed in carbonate rocks world-wide, very little is known about its effect on some basic rock properties such as porosity, permeability, wettability, and potential for formation
J.C. Shaw, R. Tsuen, S.M. Leggitt, L.L. Schramm, D.N. Rao   +4 more
openaire   +1 more source

Asphaltene Near-wellbore Formation Damage Modeling

SPE Formation Damage Control Conference, 1998
Abstract When during oil production the thermodynamic conditions within the near-wellbore formation lie inside the asphaltene deposition envelope of the reservoir fluid, the flocculated asphaltenes cause formation damage. Mathematically, formation damage is a reduction in the hydrocarbon effective mobility.
openaire   +1 more source

Formation Damage From Acid Treatments

SPE Production Engineering, 1990
Summary Well treatments with only HCl are potentially damaging in formations that contain aluminosilicate minerals (clays, feldspars, and micas) because HCl reacts significantly with aluminosilicates, leaching aluminum and forming hydrated silica.
Steven L. Bryant, David C. Buller
openaire   +1 more source

Biological Control of Formation Damage

International Symposium and Exhibition on Formation Damage Control, 2002
Abstract Conventional drilling fluids usually contain various polymers, which are the main cause of formation damage. A biological method, which could efficiently reduce this type of damage, was developed. Several halotolerant and thermotolerant microorganisms were isolated and their ability to degrade polymers was tested.
Falkowicz Slawomir, Kapusta Piotr
openaire   +1 more source