View
222
Download
0
Category
Preview:
Citation preview
8/12/2019 DGD Milan Seminar Presentation
1/11
2012 IADC DUAL GRADIENT DRILLING SEMINAR
Presentation on the Dilution Based Dual Gradient
S stem in CAPM
Concept, Development
and Capabilit ies of the
Dilution Based Dual .
byLuc
deBoer
DualGradientSystemsLLC
. .
1
8/12/2019 DGD Milan Seminar Presentation
2/11
8/12/2019 DGD Milan Seminar Presentation
3/11
WHYDUALGRADIENTDRILLINGINDEEPWATER?
FOLLOWINGTHEEARTHS
PRESSUREPROFILES,BUT
NOTFIGHTING
THEM.
3
8/12/2019 DGD Milan Seminar Presentation
4/11
CUSTOMDESIGNEDANDTESTEDCENTRIFUGES
ConceptandDevelopmentoftheDilution
BasedDualGradientMethod
1. A first set of tests was successfully completedin 2002 with the idea of separating an oil basemud into a high density mud and an nearlyunweighted mud on a continuous basis.
2. A second set of tests was successfully
conducted in 2004, again with an oil base mud,but also with a water base mud.
CAPMUTILISINGSPECIALLY3. A third set of tests was conducted in 2006, with
a special built and designed centrifuge toimprove the capacity of a single centrifuge unit.
DESIGNED,DEVELOPED,
ANDBUILTCENTRIFUGES4. Finally in 2007, after 5 years R&D and approx.
$5 million spent, we tested a specially builtcentrifuge units, these units were built by amajor centrifuge manufacturer. They proved
CAPACITY
PER
UNIT
>
500
GPM
the separation process at a maximum rate of600 GPM per unit.
4
8/12/2019 DGD Milan Seminar Presentation
5/11
CAPMMUDSEPARATIONUNITSSITONDECK
ALLTHEDGDEQUIPMENTISATTHESURFACEANDEASILYACCESSIBLEFOR
REPAIRANDREPLACEMENT.
5
8/12/2019 DGD Milan Seminar Presentation
6/11
ConventionalSingleGradientWellDesign
PumpandDumpdown
to22in
setting
depth
9casingandlinerseatstoTD
6
8/12/2019 DGD Milan Seminar Presentation
7/11
DilutionBasedDualGradientWellDesign
RiserMW9.911.3ppg;
DHMW
12.8
16.3ppg;
DilutionRatio2.43.1
6casingandlinerseatstoTD
7
8/12/2019 DGD Milan Seminar Presentation
8/11
DGDDesignwithBelowMudlineDilution
RiserMW10.9ppg;
DHMW
17.3ppg;
DilutionRatio2.9
4casingandlinerseatstoTD
8
8/12/2019 DGD Milan Seminar Presentation
9/11
THEPRIZE: DILUTIONBELOWMUDLINE
. .
2.DrilltoTDafterBOPandriserarerun.
Applicablefor:
1.Deepwaterextendedreachwells
2.Lowcostopenholesidetracks
3.Lowcostexplorationdrilling
9
8/12/2019 DGD Milan Seminar Presentation
10/11
MAJORBENEFITSOFTHEDILUTIONSYSTEMFORDGD
1. Alltheequipmentisonsurfaceandcanbe
repairedorreplacedwithoutmajordowntime.
2APlugandPlaysystem,willfitonmostmodern
offshoredrillingrigswithminorrigmodifications
required
to
install.
3EasytoswitchbetweenSingleGradientanda
DualGradientMudS stem.
4ExcellentwellcontrolwiththeCAPMriser
systemandflowcontrols.
10
8/12/2019 DGD Milan Seminar Presentation
11/11
QUESTIONS
DUAL GRADIENT SYSTEMS
www.dgdrilling.com
+1 832 758 1770
11
Recommended