PetromacConveyance System for Open-hole Wireline Logging
a PARADIGM change for the industry
• The option to run any wireline tool,
with confidence, in high angle wells.
• Improve the mechanics of wireline
logging with auxiliary devices -
eliminate tool hold-up, reduce logging
tension, prevent tool “stick-slip” and
differential sticking
• Optimise log data quality with setup
and orientation.
Engineered for open-hole and focused on optimising log data quality, the Petromac conveyance system is “best-in class”
The conveyance system has been specifically developed to address the
limitations of wireline logging in challenging open-hole conditions.
Obstructions formed by ledges, washouts and cuttings debris are easily
navigated and conventional wireline logging is feasible in very high angle
wells. High logging tensions, tool stick-slip and differential sticking are
virtually eliminated with resulting gains in operational efficiency.
The system enhances log data quality with tool sensors run in the optimal
configuration and orientation. Sampling can be undertaken from the
“undamaged” high side of the wellbore.
Tool Taxi
• Fits 8 ½" hole and larger • Lowest friction in class - 6" wheels • Active bearing lubrication system • 70deg deviation in open hole • Orientates tool sensors • Locates positively to C-spanner holes • Available with ½" and 1 ½" standoff • Light, robust, transportable & easily serviced
Tool Guide
• Fits all hole sizes- adjustable • Fits all through wired tools • Will negotiate a 4 ½” step ledge (8 ½” hole) • Light, transportable (<15kg) • Special models for ‘bottom-only’ tools
Guide is adjustable to suit hole size and standoff
Tool Taxi is positively attached on toolstring
Tool Taxis orientate the toolstring and guide
Guide SKIS over ledges
Guide runs seamlessly over a step ledge - 4 ½" high
large diameter Tool Taxi wheels reduce drag (6'')
Tool Taxi carries toolstring above wellbore wall - bridging cuttings
Conveyance System Features
“pressure compensated
bearing lubricator
stable orientation at lowest COG – running on wheels self righting
½" 1½"
large 6” diam. wheels
Tool Taxi – designed for open hole
narrow contact patch – low
wheel slippage
big clearances - no jamming
Oil Industry Feedback
Thanks you for your assistance in logging our recent exploration well
here in Vietnam. As far as I am concerned the application of your Tool
Taxi and hole Finder is a game changer for wireline logging. This my first
experience of running your equipment and I have to say I am mightily
impressed. Over the course of 5 days logging to 5800mMD at 55 deg
tangent angle, 5 separate logging runs including the usual high risk
logs of MDT and MSCT, the logging tools went in and out more or less
trouble free on every run. Admittedly we had SBM on our side and a
stable wellbore, but still to have this amount of trouble free logging over
this period of time is outstanding. Of particular interest to me was the
capability to orientate the pressure sensing tools to the high side for
clean pressure sensing and easy drop off after taking pressures. This
is something that is of high value in a deviated wellbore in my opinion.
And all of this was done without a wiper trip either before or during the
extensive logging program.
I am not renown for offering glowing praise, but this is one of those rare
occasions where it is due. For sure we will be using your equipment
again at every opportunity.
Bob Miller, Drilling Superintendent, Talisman Vietnam Limited, October 2014
Kea Petroleum recently utilised the Petromac Conveyance System to
undertake three OH logging runs in a 55deg inclined hole. Due to drilling
problems, the hole was in poor condition with significant cuttings beds
and a severe low-side washout. All three tool runs, including the MDT,
reached TD. Without the Petromac system, we would have most certainly
not got the tools past the washed out section, and missed our zone of
interest.
Hamish Gordon, Exploration manager, KEA petroleum, July 2014
The new Petromac Conveyance System is by far the best tool we’ve used
to date to assist in onshore Taranaki OH-logging. With classic S style,
high angle wells; some approaching 60degrees, we’ve always struggled
to get to bottom with the tool-string and that’s even after a quality wiper
trip. With the Petromac hole finder and tool taxi wheels, those problems
are effectively gone. Cuttings on the low-side of the hole from typical
Miocene sediments, ledges borne about from borehole breakout, you
name it…no problems! Best of all, down the first time and out soon after
equals saved time and saved money
Carey Davis, TAG Oil Exploration & New Ventures Manager, October 2013
PetromacStephen McCormick, Managing Director Petromac Ltd, 21 Hawke Cres, Beachlands, Auckland 2018, New Zealand Mob +64(0)210549158 Tel +64(0)95366621 Email: [email protected] www.petromac.co.nz
”
“
“
“
”
”