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

GEOLOGY AND GEOCHEMISTRY OF THE MINERALIZATION FROM THE GORNJI VAKUF AREA, BOSNIA

In the Gornji Vakuf area, which is built up of Palaeozoic sediments and metarhyolites, the authors investigated 47 ore occurrences by geological and different geochemical methods. They distinguish; (a) alluvial, diluvial...

THE IMPROVEMENT OF THE EXCAVATION METHODS IN BAUXITE DEPOSITS

The underground bauxite excavation in Yugoslavia is getting more important recently due to gradual exploitation of shallow deposits. The main excavation method is sublevel caving method. That technology of exploitation i...

A PRACTICAL APPROACH TO THE GROUND OSCILLATION VELOCITY MEASUREMENT METHOD

The use of an explosive’s energy during blasting includes undesired effects on the environment. The seismic influence of a blast, as a major undesired effect, is determined by many national standards, recommendations and...

NOVA METODA PRIDOBIVANJA PLINA KAO NAČIN SMANJIVANJA OPASNOSTI U PODZEMNIM RUDNICIMA UGLJENA

Napredak u pridobivanju ugljena u mnogim je zemljama, posebice u Indiji, suočen s brojnim problemima. Postoje velike emisije plinova, njihove iznenadne eksplozije, požari, prašina, samozapaljenje te visoke koncentracije...

Kapacitet rotornog utovarnog stroja na skladištima ugljenja

U cilju smanjenja troška skladišta, u kojima se nalaze velike količine ugljena, obično nekoliko stotina tisuća tona, bitno je uskladiti utovarne kapacitete s tehnološkim potrebama kotlovskih postrojenja i otpremnim trans...

Download PDF file
  • EP ID EP29927
  • DOI -
  • Views 185
  • Downloads 2

How To Cite

Nediljka Gaurina-Međimurec (2002). Laboratory evaluation of calcium carbonate particle size selection for drill-in fluids. UNKNOWN, 14(1), -. https://europub.co.uk/articles/-A-29927