Neftegaz.RU #3-17 ENG

Neftegaz.RU
# 3/2017
WELL DRILLING AT MESSOYAKHSKOYE FIELD HAS A RANGE OF GEOLOGICAL PECULIARITIES. THE
MAIN PRODUCTIVE STRATA ARE REPRESENTED BY TERRIGENOUS RESERVOIR, WHICH ARE VERY
SCATTERED IN A HORIZONTAL SENSE AND IN TERMS OF SECTIONS. OIL-BEARING CAPACITY OF THE
AREA IS DETERMINED BY CENOMANIAN HORIZONS. ALL FIELDS OF THE GROUP ARE CHARACTERIZED BY
PRESENCE OF A SIGNIFICANT GAS-CAP, WHICH, FOR EXAMPLE, DOES NOT ALLOW TO USE STANDARD
WAYS OF PRODUCTION STIMULATION AT VOSTOCHNO (EASTERN)-MESSOYAKHSKOYE FIELD TO THE
FULL EXTENT. THESE AND OTHER PECULIARITIES DURING WELL CONSTRUCTION IMPOSE HEIGHTENED
REQUIREMENTS TO USED TECHNOLOGIES AND MATERIALS AND ALSO, IN PARTICULAR, TO QUALITY OF
THE WASHING LIQUID
UDC 622.244
BUSINESS-ACCENT
KEYWORDS: drilling, drilling fluids, Messoyakhskoye field, Siberian Service company, washing liquid.
Mining-and-geological characteristics of the
section at Vostochno-Messoyakhskoye oil, gas
and condensate field have led the specialists
of Siberian Service company, which carries
out drilling works, to a range of geological
challenges. An answer to these challenges,
connected with heightened requirements to
quality of the washing liquid, became special
drilling fluid formulations, producing the
maximum effect at drilling in the northernmost
points of the country.
The formulation has been selected on the basis
of increase in thermal resistance, stability and
reinforcement of the borehole. When choosing
the drilling fluid at this field, the specialists have
paid special attention to ensuring of high quality
of the producing horizon drilling-in.
FACTS
East Messoyakha oilfield is
the third project successfully
implemented by Gazprom
Neft in the Arctic, following
Novoportovskoe and
Prirazlomnoe fields
150-
400 tons per day – launch
flow rate of the well at
Messoyakha oilfield
4.2 mln
tons of oil – estimated
output at the Messoyakha
oilfield for 2018
Clay mud, polymer-clay,
polymer-clay inhibited,
biopolymer inhibited solution
“EKTA-SIL”, and also heatresisting
fluid “EKTA-TERM”
have met imposed requirements
to the full extent.
Components of these drilling
fluids do not adversely affect
the soils, which is very topical,
taking into account ecological
fastidiousness of the northern
regions. And such properties,
as increase of the borehole
stability and resistance to high
temperatures, make possible to
use these drilling fluids on the
fields in any other regions.
The services on drilling-fluid
services are provided by
Siberian Service company, the
branch of SSK-Technologiya.
Subdivisions of the branch
in the regions, where SSK
operates, allow to carry
out these works both for
subdivisions of SSK itself, and
for the third-party customers.
When developing programs
on preparation of drilling fluids
and their laboratory check, all
the customer’s requirements
and peculiarities of the well
are taken into account. At the
facilities, industrial engineers
ensure control over preparation
of the drilling fluid and tracking
of the process of its use, prompt
response to change of drilling
conditions.
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