TY  - JOUR
T1  - Improving the Quality of Well Completion in Order to Limit Water Inflows
AU - Kuchin, Vyacheslav Nikolayevich AU - Dvoynikov, Mikhail Vladimirovich AU - Nutskova, Mariia Vladimirovna 
JO  - Journal of Engineering and Applied Sciences
VL  - 12
IS  - 22
SP  - 5985
EP  - 5989
PY  - 2017
DA  - 2001/08/19
SN  - 1816-949x
DO  - jeasci.2017.5985.5989
UR  - https://makhillpublications.co/view-article.php?doi=jeasci.2017.5985.5989
KW  - low formation pressure
KW  -viscoelastic liquid mixture
KW  -drilling fluid
KW  -Well completion
KW  -permeable horizons
KW  -isolation
KW  -water inflow
AB  - The aim of this study is to increase the efficiency of well completion during water inflow using a
Viscoelastic Liquid Mixture (VLM) for isolation of permeable horizons. With the increase in the share of drilling
in complex conditions such as permafrost, abnormal reservoir pressure, abnormally high reservoir temperatures,
unstable rocks (prone to landslides, plastic deformation), rocks with high hardness, etc., the technology of
constructing wells also complicates. One of the main issues is isolating the aquifers from which the water breaks
through to the producing wells, significantly increasing water cut. To limit the water inflow exists various
components: cement slurries, gel-cement slurry, synthetic resin, viscoelastic compositions, swellable polymeric
mesh, latexes, materials with a condensed solid phase, materials for selective isolation, etc. For low reservoir
pressures, a significant role in the selection of drilling and grouting mortars is played by density and therefore
to temporarily block permeable aquifer it’s appropriate to use viscoelastic screen-based three-phased stabilized
VLM having a low density. The following article analyses domestic and foreign field experience in insulation
of permeable formations with different components, researching three-phased blocking components and
summarizing their requirements.
ER  -