ISSN:
1662-8985
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Formation impairment due to fines migration during drilling and production continues tocause injectivity or inflow reduction. In high permeability sandstone formations or sandpacks, finesmigration pose major concerns in the oil industry as it leads to reduction in oil/gas production. Theproblem is further enhanced in mature reservoirs where increased water ingress and multiphaseproduction aggravate the fines mobilisation and migration. Proper fines management can optimiseproductivity, safeguard facilities and reduce well maintenance cost. Today’s core flood tests as partof risk assessment limit tests to single phase or at best two-phase oil/water flow. This paper presentsthe unique technique adopted to analyse fines migration mechanisms in a true multiphaseenvironment. The technique integrates CFD and 3-D reservoir simulation concepts to define andquantify the effects of different operating conditions on discretised reservoir blocks. From theresults obtained detailed mapping of prevailing pore blocking mechanisms and correspondingimpairment profiles are presented as functions of operating conditions and completion strategies.The paper introduces a parallel experimental programme being initiated at The Robert GordonUniversity(RGU) to validate the simulation predictions. The paper is concluded with suggestions(supported by flow efficiency case studies) on contemporary innovations in fines managementranging from a radical use of expandable screens (ESSTM) or expandable slotted liners (ESLTM) orthe intelligent VSSTM Screen to specialist application of glass or ceramic beads for pore diametercontrol and near wellbore reinforcement to initiate secondary filtration
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/39/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.18-19.287.pdf
Permalink