Application of Integrated Reservoir Management and Reservoir. Characterization To ... Development of an integrated reservoir description created using ...
Society
SPE 27657
of
PetroleumEngineers
‘
Application of Integrated Reservoir Management Characterization To Optimize Infill Drilling
and Reservoir
P.K. Pande” and M.B. Clark,’ Fins Oil & Chemical Co.; T.A. Blasingame, ” Texas A&M U.; and P.E. Hunt,.. Mohan Kelkar,’ u. of Tulsa R.K. Vessel!, David K. Davies& Assow Mobil E&P U. S.. Inc.
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1994, Sc.cieW of pevo[ekm
E.91neer&
This paper was prepared for prewnlall.m
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at the 1s94 SPE Permlmi Bes!n 011 and 08s Recovery Cm ferahce held in Mldlmd.
Tei.i%
16-? 8 March 1B94.
% & was sil~iej f{cjesen!am; “iy an s+mogrin’ comnk kllowrig rwiti”of @ma%”mniai.id In an ab”~rid Submrned by the w!hods). ~~lenS”Oi ihri bai~( as Prey”l@d, have not been revlawed .by lhe Society M Pe!roleum E“ginenm md em *uW Ca cmetiion by [he .wlh.r($). Tfie rnaferial. as PraSentad, does nti namsanly reflecl papers presm!ed at SPE meetings ar.subj.m to publication r.qlew by Editorial committees 0$ ~. W*V anY P051tion of me Soofety ?f p~tf.le.rn E.9fflws. [Is .!1..!s. or memb~: of Petroleum Engi.Ews. Permission to.mpy 18mstdcted 1. an abslrscraf not more than 3C0 word,. [Ifwtrallcm May not be cnrAd.The abstiact mwld .w.lai. cnrspic.o.s acknc4vW3me”1 ,.. _ of where md by whom the !xper !9 prmmtad. Wm. Ubrarim, SPE, P.o. Box 8W336, Richardson. Tx 7608r.3836JJ,s~, Tele% 163245 .S’?E!UT.
‘Ilk project derno~trat+. the application of Advanced Secondary Recovery (ASR) technologies to remdy producibility problems at the North Robertson (Clearfork) Unit, in Gaines, Qaunty, Tex=”: The North Robertson (Clearfork) U&t is a Shallow Shelf Carbonate (.S.SC) reservoir of Permian-Leonardian age operated by Fhsa 011 and Chemical Company. The Department of Energy (DOE) has selected “the “Unit as a Mid-Terir””-Field Demonstration under the DOE Class 11011 Promam. ..
PRODUCIBILITY
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PROBLEMS
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Impor&rrt producibility problmus exhitited at the North Robertson (Clearfork) Unit include.. 1. Poor sweep efficiency due to a large, low permeability reservoir interval is heterogeneous and that compartmentalized, which results in poor vertical and lateral qntinuity of reservoir flow units.
for optimal production and injection practices. ~
Y AREAS
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To. characterize. the reservoir in terms of. petrophysical properties and well deliverabilitiea @reduction potential), time different ar&a for” focused study at the Nordr Robertson. Unit have been identified. These. areas are” known as Pr&Demonstration Reservoir Management Study Areaa or PDSAS and were established based on varying performances of hktorical oil production, fro”rn excellent.to poor. These areas will serve as intense areas of study, with testing optimization, Simiilation and forecasting, irrd surveillance activiti.ea during .If!eproject. ~
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The Advanced Secondary Recovery technologies to .be demonstrated at the North Robertson (Clearfor.k) Unit. include
2. Poor balancing of injection and production rates iri certain areas of dre reservoir. which indicates poor pressure and fluid communication and limited represstming--possibly remedied by improved injection. and production. scheduling as well as inj,.ection and production well pattern re-aligmnents. .3. Both inj~tion and production wells are not optimally completed with regard to placement of perforations and the stimulation treatment is inadequate
1. Development of an integrated reservoir description created using reservoir characterization and reservoir management activities-and integration and rncidelling ..of the data from. these activities rising gtist?tistical interpretations (realizations), 3-dimensional reservoir simulation, and .armlfiical solution methods. :,. .
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Acquisition and analysis of gacdogical data: core and well log data.
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APPLICATION OF INTEGRATED RESERVOIR MANAGEMENT AND RESERVOIR CHARACTERIZATION TO OPTIMIZE INFILL DRILLING
Acquisition and analysis of geophysical” data: cross-borehole tomographyand interwell reflection protiling surveys. Acquisition and analysis of engineering data: injection and production data, well test data, tracer surveys, and production logging surveys. 2. Development of an integrated reservoir managenwmt plan. .
Optimization of completion and s~mulation practices to maximize production and injectivity. Reservoir surveillance to verify and revise the integratedreservoir description and to monitor the Field Demonstration. Integration of optiriixation and surveillance activities along with the integrated reservoir description to create provisions for foture exploitation &d tertivy recovery.
3. Field demonstration of the Geologically Targeted Infill Drilling (and waterflood) progr~ developed using the integrated reservoir description and the integrated resetioir management plan. .,
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‘The “primmy focus ‘of this project ii to target the infill wells such that only wells which will recover significant and sustainable rat& of “&il flow will be drilled. Approximately 65.0-950 bbls of oil per day from as many as 18 new imlll wells is expected to be recovered rhroiigh the life. of tf@
