Laboratory evaluation of calcium carbonate particle size selection for drill-in fluids
Journal Title: UNKNOWN - Year 2002, Vol 14, Issue 1
Abstract
The technological development in horizontal, re-entry and multilateral wells require drilling and completion the reservoir sections of a well including as little damage as possible. The trends towards open hole completion places additional emphasis on formation damage avoidance. One of critical factors in avoiding formation damage during drilling is obtaining surface bridging on the formation face with minimum indepth solids penetration. In case of overbalanced drilling, this can be donme by optimizing the particle size distribution of calcium carbonate used as bridging agent. The paper presents laboratory data frpm tests carried out on selected fluids which show the extent of the changes that occur in fluid filtration properties (spurt loss, PPT value and static filtration) when calcium carbonate with different PDS is used. The Permeability Plugging Tester was used to evaluate the filtration and spurt loss of selected fluids. The ceramic disks with permeabilities 0,09 μm2 (90 mD), 0,13 μm2 (130 mD) and 0,4 μm2 (400 mD) were used as filter medium.
Authors and Affiliations
Nediljka Gaurina-Međimurec
Keywords
Related Articles
- EP ID EP29927
- DOI -
- Views 156
- Downloads 2
UREĐAJ ZA ISPITIVANJE ČVRSTOĆE NA SMICANJE SREDNJE ČVRSTIH STIJENA
U radu je opisan uređaj za smicanje predviđen za ispitivanje »mekših« stijena s maksimalnom horizontalnom i vertikalnom silom do 400 kN, a za površinu uzorka između 100 i 200 cm2, Uređaj se može koristiti i za ispitivanj...
POTREBA ZA OSNIVANJEM PODZEMNOG ISTRAŽIVAČKOG LABORATORIJA U HRVATSKOJ
Nuklearna elektrana Krško (NEK) ima dozvolu za rad do 2023. godine, a prema postojećim sporazumima između Republike Hrvatske i Republike Slovenije, svaka država je dužna zbrinuti polovinu radioaktivnog otpada nastalog ti...
PROCJENA UČINKOVITOSTI POVRŠINSKE OBRADE PRIRODNOGA KAMENA UKRAJINE MEHANIČKIM I KEMIJSKIM METODAMA
Provedena su istraživanja s ciljem proučavanja načina poboljšanja ukrasnih svojstava proizvoda od prirodnoga kamena. To će omogućiti izradu završnoga proizvoda od prirodnoga kamena s homogenom bojom. U tu svrhu opisani s...
CONTRIBUTION TO TERMINOLOGY AND APPLICATION OF NEW GEOSTATISTICAL MAPPING METHODS IN CROATIA - UNIVERSAL KRIGING
Advancement of science and computer development enabled the processing and analysis of large amounts of data for which the geostatistical methods have become indispensable when researching and presenting the results in a...
OTPORNOST DOLOMITNIH AGREGATA NA UDARNO HABAJUĆA OPTEREĆENJA I ZAMRZAVANJE
Dolomitni agregati iz kamenoloma Čelina, Podsusedsko Dolje i Jarče polje podvrgnuti su ispitivanju na udarno habajuća opterećenja i zamrzavanje. Pri tome su korištene nenormirane i normirane metode prema HRN-u i ASTM-u....