1
`
`WEATHERFORD
`INTERNATIONAL, LLC, et al.
`
`EXHIBIT 1025
`
`WEATHERFORD
`INTERNATIONAL, LLC, et al.
`v.
`PACKERS PLUS ENERGY
`SERVICES, INC.
`
`

`
`Sharpen Your Measurement Edge I
`
`with MRIL® I
`
`Contact NUMAF1‘ today to learn
`
`how you can benefit from the
`MRIL edge.
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`/\/UMAR
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`A Halliburion Con1parn;
`
`2
`
`

`
`Volume 71, Number 6
`
`June 1998
`
`Pghu|“ii‘ifi lngiimr
`
`RNATI
`
`MERITDRIEIUS ENGINEERING AWARDS
`
`
`1
`
`PEI Presents 1998 Meritorious Engineering hrarils
`Plaques for the winners of the 1998 Meritorious Engineering Awards were
`presented at the Offshore Technology Conference.
`Staff Report
`
`r.
`L} FOCUS cm RUSSIA
`
`2 A Baby Brother For The Seven Sisters?
`The Russian oil industry is making great strides toward modernization,
`increased production and exploration.
`by M. Liliana Rinhi, International Editor
`
`
`
`E J MULTILATERAL TEGHNDLEIEY
`Dnal Bore lie-entry, Tern Plntlorrn MIR Highlight
`29 Mnltilateral Action
`Multilateral activities include a dual-bore, multi-string completion system
`that allows selective re-entry, a stving of 14 successes and an international
`distribution agreement.
`Staff Report
`
`
`
`3 & PROCESS TEDHNCILDBY
`32 MN [ethnology Optimizes S||eI's Tern Platlornr
`A closed loop optimizer has accelerated oil production by 2.5% from the
`gas—|ifted Tern field.
`by AS. Mortimer; MDC Technology Ltd.
`
`
`
`H m INFDRMATICIN TECHNDLUGY
`Predicting And Preventing Casing Wear While Drilling
`A computer program to calrmate casing wear was developed by
`Maurer Engineering Inc as par‘. of rhe Drilling Eni_1mn-41-ring Association's
`DEA-42 project
`by Joanne M. Perdue, Technology Editor
`
`41 Integrating lnlorrnation Management Systems
`A central database for storing and retrieving information can make a big
`difference in profitability.
`by Thoma R. Bandy and Jeffrey O. Dyk, Production Access inc.
`
`JUNE 1998
`
`Hart% Petroleum Engineer International
`
`II“-SIIIIGI.
`
`III SIIIGI for
`
`IISPIGTIII
`
`IIGIIIITIII
`
`GIITIII and
`
`IIIIITIIY
`
`IIIIEEIEII
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`on U“ GOIIIIII
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`. .1 sneler Ilene
`
`CURPDRIIE l|EADflIlM'|'E|I|
`: ' ' ‘men Weslhelmar. Suite 1000
`Houston. Texas 77077
`Tel 281-721-4200
`Fax. 281-721 -4203
`ElFLl'lIIKl'I|J|i SEIWI
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`rnouucnon SEIWI:
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`I
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`circle 102
`
`3
`
`

`
`
`
`
`
`- WELL TESTING/PRODUCTION
`43 hIIuIiII€uIiInshufl||7orI|yifltlItPQI
`Whensrnallmjatpwrpsamaamhlnedwhhmllodtibinglniwlovafiw
`waygsharpiylwiermamiorwallmesflngandprodiidimcarimsult
`by CO. “Doc” Stoldey, TAM lntomational, and 1'. Roland Jaduon, New
`Coleman Pump Co.
`
`RESERVOIR MANAGEMENT
`
`I
`PorIoaliilityPmli|os—-Iloyiolluonoir
`50 New high quality logging technology givesthe essential data for permeability
`profiling as the key to reservoir management
`byD. Georgi, E. Kuap, X. TangandA. Chang, WoslIrnAflI.Il.ogging$oNicIs
`
`- SEISMIC ACQUISITION
`59 M||tiwIIpoIoItSoisnitAqu'siIioI Iringslkwlnldltllh
`
`lhsorvoi Chraderintlcn
`Amooois decision to cnndun a1CD-krn3,lour-cornponem survey in the North Sea's
`Vaihall lleld is a landmark event for ihe seismic lndustiy, including contractor Geno-
`Frakla Dr. Olav Holberg, head of Geno-Pralda Reservoir Characterization and
`Monitoring. presents his views on the future ol this liachrlology.
`by Gan-y Chamock, T95. Chester, UK
`
`
`
`H DRILLING TECHNOLOGY
`64 SlIIWIIslocho|ogyM1yIIuohIionizellatn|GasDrllIlI|g
`
`U S. Department of Defense laser tedmology has drilled through rock samples
`100times faster than a drill bit.
`Staffkoport
`
`MONTHLY FEATURES
`5 NowIVlows
`9 Couuofoil-—BobPo¢blor, Luodmukarapma
`11TodI'I'l'IndI
`15 Statistics
`oblndultrylioundup
`69 Pooph
`70NwvProduch
`71 Meetings
`72Advu-tiurlndcompnnylndox
`
`N EXT MONTH
`
`Petroleum Engineer |nternationa|‘s July issue will spotlight coiled tubing and
`multiphase metering. The monthly geographical focus will feature Latin America
`ON THE COVER
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`ii»livlliivllrrli.iis$!'!?l?lll'=§Ii/A
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`circle 1 03
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`Shell U.K Exploration and Production's Tern Platform in the North Sea Photo
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`Patrol:-..ei1E.m.;knc-u Iitinruwonul IISSN 01¢!‘ I53 Capri§\_I 0 HI‘: PUl:|=_I1tIr.IIi.|I-r ‘PPR ill
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`alaawltnriairnurnatlnnxal airrn-ail pomgueilifipuuyn-Ir lnld-llfic-.CuIrIII\! Il‘4nSI'|#¢W9|I4lDIIn'n'-d
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`SEO n'1¢v¢l-mu; add $15 for Ihlpping and ha1'Id_in9 pm order. Elck inner. ii avnnldulo. flllll; add $1
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`shipping and handling Ipmpoid ardur» only]. POSTMKASTER: Sand address change: to l-|IrI'L Potrul-u.Iin Englnl-ur
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`
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`
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`
`
`
`
`
`
`Hart's Petroleum Engineer International
`
`JUNE 1998
`
`4
`
`

`
`44
`
`gl‘
`
`lll\"ilOl‘C p'0\«\t(lC1‘zmtllliqttitl
`toatitigs. a\‘lorc L1tl\'L1flCCLl
`Ll])])llCLlllOllS.
`l\~‘l0rc
`\~\'L1)'S to t‘,\'lCfltl the hit‘
`oi your tul>Ltl;u‘s."
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`4;
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`Expect more from Tuboscope: the company that invented tubular
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`TUBDSEDPE
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`www.luboscope.com
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`5
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`IVSGONO
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`6
`
`

`
`|\E\.'VS VIEVVFJ
`
`Joanne M. Purdue, Technology Editor
`
`lsT||oC;pia|IASoa0rAlake?
`
`
`
`agreetnents have
`'
`been reached concerning
`the division of the Caspian See,
`which had been the subject of
`debate about whether it should
`beoonslderedalake orsa. Ifit
`is determined to be a lake, then
`all countries will
`share
`resources equally. However, it
`seems more likely to be
`declared a sea, in which case it
`will be divided up into offshore
`zones.
`
`would be unacceptable to lit-
`toral states, particularly Iran,
`and would be rejected.” Deputy
`Oil Minister Ali Majedi said,
`‘We have squandered many of
`our interests in the exploration
`and exploitation of the Caspian
`Sea by not taking decisions in
`time...and we will lose more if
`we fail to act soon.”
`
`' Aner-bai,hn'sVlew
`| Azerbaijan International Open-
`ating Co. (AIOC) reported that
`the Chirag 1 production plat-
`form is now producing 40,000
`bid of oil from threewells. Ulti-
`mately, the consortium plans to
`drillatotalof24wellsl'ron1the
`Chirag 1 platfiorm to exploit the
`Azeri, Chirag and Guneshli
`fields. with production of
`110,000 bld expected. Separate-
`ly, MAI Consultants were com-
`missioned by SOCAR to study
`the feasibility of rejuvenating
`several Caspian Sea fields con-
`taining 450 million bbl of oil
`and 3.4 tcf of gas. SOCAR is
`preparing information pack-
`ages and will invite tender
`offers on these 20-year-old
`fieldslaterthisyear.
`
`Kazakitnrfe Vbw
`Kanat Saudabayev, Kankstan's
`ambassador to London. said
`thedealtodividetheseabased'
`on the principle of equal dis-
`tance could be signed by the
`end of May as a result of recent
`negotiations among the Caspi-
`an's five littoral states. "Kant-
`stan, Azerbaijan and Turk-
`menistan have already begun
`production a.nd have begun
`working on theirown sectors of
`the Caspian, so we can saythat,
`de facto, the Caspian has been
`divided.” Saudabayev said.
`Only ratification of
`the
`agreement is required. Sepa-
`rately, President Nursultan
`Namrbayev said Kamkstan is
`'l\Irhne|Ibtn||’aVlew
`suspending finther privatim-
`tion contracts and outside
`The government of ‘lurk-
`investrnmt to conserve oil and
`| menistan and Western Atlas
`gas resources for future genera-
`tions. "We have 72% of our '
`eoonomyprivatizedandrnany
`I ment ofthe count:-y's oil and gas
`sector: A national seismic data-
`parlsofitarebasedonoiland
`base will be created and techni-
`gas contracts. Forthis genera-
`tionandthenurt.wehavecom-
`cal
`will improve the
`pletedallcontracts."
`country's exploration and devel-
`opment industry. Western Atlas
`has just completed an ofisholre
`seismic shoot in the Turk-
`menistan sector of the Caspian
`II Sea, and evaluation ofpotential
`hydrocarbon reservoirs by
`' international players is now
`underway. Western Atlas is cur-
`rently conducting another seis-
`mic sm'vey in the shallow water
`transition zone of the Caspian‘s
`'Ihrlnna:Shel.f.
`
`Inn‘: View
`Iran would oppose any deals
`for “unilateral” exploitation
`of the Caspian Sea, according
`to a Foreign Ministry spokes-
`man. Mahmoud Mohammadi
`was quoted by Tehran radio as
`saying, “Any understanding on
`principls which would eventu-
`ally lead to a unilateral
`exploitation of Caspian Sea...
`
`l
`
`Russia’: View
`Until April. Russia had favored
`the lake designation. but now is
`prepared to divide the Caspian
`into national sectors. The
`Caspian Pipeline Consortium
`oil pipeline from Kaza.lrstan's
`Tenglz field to Russia's Black
`Sea port of Novorossisk will be
`finished by the end of 2001,
`according to Vagit Alekperov.
`head of Lukoil. The Russian
`giant and Chevron have signed
`an agreement on a final
`timetable for the $4.5 billion
`project. Acting first deputy
`prime minister Boris Nemtsov
`has requested that land alloca-
`tion be completed by Jtme.
`
`
`
`ihwlemmalflflcunaahctlal
`
`-CuplIICAPEXPIq'octlon
`
`US. View
`At Rice University in Houston,
`a new study was released on the
`political, economic and cultur-
`a.l aspects of Caspian Sea
`hydrocarbon
`production.
`Director Edward Djerejian
`said, ‘While there is no ques-
`tion that Caspian Sea resources
`are significant, there is a need
`for perspective.” The Caspian
`holds only 2.7% of the worlds
`oil, compared to the Middle
`East with 55%. Half is in
`Kazakstan, while Turk-
`l'n.el'I.lstan has the lion's share of
`the Caspian‘s gas reserves; both
`countries are landlocked. The
`study recommended a single
`pipeline to bring these hydro-
`carbons to distant markets eco-
`
`| nominally."
`
`JUNE 1998
`
`Hart's Petroleum Enjneer International
`
`7
`
`

`
`8
`
`

`
`)0IL PRICES
`
`OPEC Ponders Further Production Cuts
`
`PEC ministers will meet in
`Vienna on June 24 to eval-
`uate further cuts in oil produc-
`tion because oil prices failed to
`increase after signing the pro-
`duction agreement in Riyadh
`in March. The Economist
`Intelligence Unit calculated that
`production will be down to 28.12
`million bid from 28.82 million
`b/d before the deal. Thus, spot
`prices should increase to $16/bbl
`by the end of the ye.-tn: However,
`OPEC countries will still be
`producing 630,000 b/d above the
`agreed quota, resulting in a
`global surplus of 500,000 bid and
`prices about 18% below 1997
`levels.
`Sheikh Zaki Yamsmi. chair-
`man for the Centre for Global
`Energy Studies (CGES), said oil
`
`>NORWEGIAN POLICY
`
`prices are likely to remain weak-
`around $13/'bb1—for the next 5
`years or so. At a CGES Asian oil
`conference, Yamani said, "OPEC
`continues to prefer to light lires
`as and when they flare up rather
`than preventing them from
`occurring in the first place." He
`maintained that OPEC had never
`prepared itself adequately for
`Iraq's re-entry to the oil market
`and "now that the UN seems
`happy to allow Iraq to export as
`much oil as it physically can,"
`OPEC still has no urgent plan to
`accommodate the additional oil.
`OPEC President Obcid bin
`Sail‘ al-Nasseri, oil minister ofthe
`United Arabian Emirates, said
`further OPEC cuLs would depend
`upon participation by non-OPEC
`countries.
`
`-
`
`Russia. Despite earlier r'eluc-
`tance, Russia has decided to cut
`back on crude oil exports by
`61,000 b/d—-about 2.3% of Rus-
`sia's production—but has not
`stated when this would begin.
`China. China National Petro-
`leum Corp. has reduced produc-
`tion by 5%, or about 150,000 b/cl,
`since April
`l,
`:1cc.ording to
`Reuters. The country's onshore
`pnoduction fell by 590,000 tonnes
`during the first quarter of 1998,
`according to China Petroleum
`News. Xinjiung oil fields shipped
`only 490,000 tonnes of crude in
`February, 100,000 hbl less than
`the official plan. The Daqing, Jilin
`and Taiim field have shut down
`more than 1,000 wells, slashing
`output by more than 10.000
`tonncslday.
`
`.
`
`Norway Holds Back On Production, Investments
`said. Gas and condensate fields
`that produce oil as -.1 byproduct
`will be exempt. as will the Stat-
`fjord and Murchison fields,
`because they straddle both Nor-
`wegian and UK waters.
`Oil production is not the only
`thing slowing down in Norway.
`The Norwegian Department for
`Oil and Energy (DOE) recently
`issued a White Paper to the Stortv
`ing (parliament) concerning post-
`ponement of investments in the
`petroleum sector to avoid over-
`stimulating the economy. Author-
`ities will upprove all projects in
`Lhe usual way, but start-up invest-
`ments Eor all discoveries currently
`
`
`
`Haakon Stoinar Giil
`
`orway will decrease oil pro
`duction by 100,000 b/d in
`1998, said I-Iaulion Steinar Giil,
`Norway's deputy minister ol‘
`petroleum and energy at an Off-
`shore Technology Conference
`breakfast. He said beginning
`May 1 zuid continuing to the end
`of the year. 36 Norwegian fields
`would reduce output by 3% com-
`pared to the expected 1998 pro-
`duction curves, which would
`result in total output about equal
`to 1997. This action was taken
`independently of OPEC and
`other oil-producing countries.
`"We make our decisions based
`01.\0L11" own deliberations," Giil
`
`under evaluation will be delayed 1
`year, but not beyond July 1, I999.
`
`
`
`JUNE 1998
`
`Hart's Petroleum Engmeer international
`
`9
`
`

`
`
`
`|
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`technique, magnetic resonance
`Imaging roqulns carom plannlng.
`I-Itholou. pore size. loans
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`Schlulnholger now offers you
`the means to ensure that you:
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`cum‘ comblnahle Magnetic
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`wide integ'raLion——the ability to access the
`collective knowledge of the organization
`to make fast, effective business decisions.
`In this environment, it is easy to become
`hypnotized by the seemingly limitless
`potential of i.n.fortnation technology. But
`technology is only part of the ultimate
`integrated solution.
`Integration is as much about people and
`process as it is about teclrnology. Yet few
`senior executives have focused on all three
`issues. As a result, most E&P organizations
`have only “islands of integration." Despite
`advanced hardware, shared databases and
`integrated applications, technical profes-
`sionals keep running into social and orga-
`nizational bottlenecks. If they cannot
`address these "soft" issues, oil oompanics
`will never achieve the productivity gains
`they expect from information technology.
`The center of gravity in a company
`must shift from function to process. The
`traditional organization chart represents a
`purely functional view of a company. It
`illustrates reporting relationships among
`internal functions, but fails to indicate how
`or why work actually gets done. People
`manage the boxes on the organization
`chart, but not the "white spaces" between
`them. Managing the business as a system
`requires tlu'ee components not depicted on
`a typical orgzuiization chart:
`Work processes that flow horizontally
`across the functions
`
`Outside partners and suppliers who con-
`tnibute to the processes.
`Customers who are the orgatri7ation's
`reason [or being.
`No permanent productivity improve
`mcnt will occur without serious redesign
`of processes. They are especially critical in
`this era of alliances and virtual corpora-
`tions. Well-defined processes unleash the
`creativity of individuals and teams.
`In most oil and gas companies, asset
`teams are rapidly becoming the norm. But
`members often experience conflict
`between the team's goals and their own
`professional interests. Some companies
`forget the basic truth that, while at times
`we may act as part of a team, we are
`
`.I-"--:,--
`
`I._ }I'g-
`
`-'..|._r.:n'.-r
`
`r'rl_r_-.l".-|_,
`
`.‘_
`
`
`
`Bob Peobler
`
`always individuals And individuals in busi-
`ness are always part of a larger system,
`regardless if they an‘: part of a "team."
`With regard to teams, too often people
`are thrown into a room, called a team, and
`told to "figure it out," In most cases, that
`won't worlc People need clear expectations
`about what to produce and
`when, and an understanding
`of how to do the work
`Besides the intellectual and
`physical capacity to perform
`required tasks, they must
`have the proper tools and
`resources (including infor-
`mation technology). When
`the team involves internal
`groups, external partners and
`service companies, a cross-functional pro-
`cess map is also essential. Finally, const:—
`qucrtccs that support the team process
`must be found. Many organizations talk
`teams. but continue to reward individual
`performance.
`Information technology can enable
`teams and individuals to implement more
`effective business processes. Yet so much
`available technology and information can
`create chaos. On the Web, search engines
`provide ways of creating processes that
`enable people to manage millions of poten-
`tial interactiorrs.
`As oil and gas enterprises gmw increas— 1
`ingly complicit. Druccs definition must pre- 3
`cede the application of information tech- ?
`nology. A well-defined process acts as a
`"search engine." It identifies the decisions
`that need to be made, the best people to
`make them, and the tools and data
`required Processes provide the context for
`converting data into information, informa-
`tion into knowledge, and knowledge into
`business ventures.
`Technology alone cannot achieve that.
`Data and information can be stored on at
`server but knowledge resides in people's
`heads. in a true learning organization,
`knowledge is never static Information
`technology's proper role is to enable cro-
`ativc people to share knowledge and col-
`labor-.ite more cfi’ect.ivel_v in those process-
`es that deliver ultimate value to the
`marketplace. O
`
`11
`
`11
`
`

`
`MODULAR S
`
`UBSEA r1\ND |NTEGF‘..f‘«-TED COTUIPLETIONS
`
`12
`
`

`
` Dick Ghiselin
`
`
`
`
`
`
`
`pleted well plan ro be
`vimvcd in 3-D spacc ;1lrm§_»_'_
`with the l‘CSL".'i"\'()ll' nmrlal
`l)r.illQLic.$l
`\’l5Ll‘.lliZ;lllU[l
`soll\v;\1'c w0rl(s on 21 deal‘-
`to p cm'ironmci1t, and allow;
`cnsy iInp(Ji‘l:ilii'm (ll l1oi'i—
`zuns, faults and gcophvsicnl
`l1Z.llL], HisLi>i‘i<;:.il data can bc
`impoiwd so c:i«;:]‘I pI‘()p‘o5\.‘(l
`well can be ¢:\-"qluaicnl
`in
`conlc'~.,\‘I.wiIl1prcvioiIs|y—
`diillcnl wells The ,‘»D plols
`can be mtmccl so thv i:I‘1ll1‘C
`
`\'VL,‘ll-(lCSl§_j,l‘l tczim can fully
`visu;ili7.c how the 'k:()l])‘
`plclcd well will (l]'LIll'l [he
`l'cscr\'i>ii‘.
`
`Thu Llcsktop L!n\'lI‘un-
`mum 2‘|ll0\N'.s' c:is_y p0Il;)l)llil\'
`of Lllt‘ well plan iothc:i-i;:_1o
`li.'.\CllllZllLi onsitc communi-
`c.:ir.ion and UDLl'.1lLi.\‘. (llll'lIlg,_{
`the drilling process
`
`3* SOI-'l‘Wi\.'R_l-I
`
`3-D Well-Planning Software Solves
`Complex Problems
`
`Rusui’\-'oi1‘ LlL‘.'\=I.':lopmen1
`via multllanrruls and
`c.\’lcndcd~rcz1c.l'1 hm'i2onL:1l
`drziinholus pI'cSE'|Il'.h cr1m~
`
`plczx \V(fll-1T:.1_‘|
`.i:Ior'_\' prub—
`lcms to the operator. Two
`new so*.‘Lwure progranis
`from Spc1‘1‘_y—SuI1 ollci [mu 3
`inIcg.mLion of ED moclcls
`into ihe LllI'CCllUl1Lll well
`planning process Callud
`DrillQucst"" ui1<lD1‘illQucs1
`Visiialin-1"“, the p1'()f_j1‘a1ns
`arc desigiied to simplify Lhc
`oft:-n—c(>rnplicuted lusk of
`]'1lIlI1l1lll§§}1E1(ldflll_lT1glIlLllLl-
`ple din.-c:i(>ii;ll wull.s‘.
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`ning and 3-D VlSLlJlll'/.L11lUn
`s0l'l\\-‘:_1re i‘v.<i(lc:l on Lll{lVL‘,l‘>
`cnl plulluiins Llfld we:-c
`usud. l)_\' di|‘l1:r'unL tuchnicul
`groups.
`lfllL'1'C('JlT‘llI]lJl1lCIl~
`Lion bclwcun guuph)/sicisls,
`
`gculogists and ncscrvoir
`engi-nears -is greatly facili-
`uitcd when data can be pl-11-‘
`catxsenl in a wnimon opera!-
`ing environment (‘.Z1pLll7l|': ol
`iinporling geological and
`g\':Opl1‘\'Sll'.‘.;ll
`lI1lO.l‘Jl1L|l.l0Il
`Ironl the izpciuliiig mrnpzr
`ny’s earth model. During.
`actual drilling opcruliuris,
`this common s\-‘stem m:1l<cs
`Li0i)".muniCuLi0ri with drill-
`ing cnginecrs and scrvicu
`company pei's0nnz:l >;tI'aig|i|—
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`and drug calculations. lay
`(lnmlics and BRA uriixlyalx‘.
`\'\"i/.:u‘ds help with l'.ll‘gUl
`design, cuxiiig design, unli-
`collisiou and pioximiiy
`:in:il_\-sex Thu L)i‘illOu<:sl
`\I‘isu:iJizc~1' allows tlu: com-
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`ADVERT|S|Nf3 SALES
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`
`
`
`13
`
`

`
`
`
`Anadril|'s new |SONlC* tool
`
`'
`
`minimizes uncertainties
`
`about the position of the
`
`reservoir target when drilling
`
`exploration and appraisal wells.
`
`In addition to identifying
`
`lithology and porosity close to
`
`the bit, sonic-while-drilling
`
`data is used to evaluate pore
`
`pressure for locating casing
`
`seats and early identification of
`
`drilling hazards. Real-time
`
`acoustic data can be integrated 1
`
`with surface seismic data to
`
`develop critical time-depth
`
`relationships. Synthetic seismo-
`
`grams computed from ISONIC
`
`data continually refine target
`
`depths and well trajectories.
`
`www.connect.slb.com
`
`AnadriM—drillr'ng to
`maximize production
`
`Sch|umberge_r
`Anadrlll
`
`‘lhrk or Schlvmlvcrgar
`Circle 109
`
`14
`
`14
`
`

`
`>S0l'-TWAIE
`
`New Program lets Users
`
`Their Mud At Work
`
`ngineers who have longed
`for a chance to see what
`their drilling fluid does at the
`toolfaoe will want to check out a
`new Windows-based software
`
`application from M-I LLC. The
`program, called Virtual Hy-
`draulics°, simulates fluid rheol-
`ogy, hydraulics and density
`under clownhole conditions. Pri-
`marily for use in predicting the
`behavior of high-performance
`synthetic and oil-based drilling
`fluids in HTHP situations, the
`program is also useful in extend-
`ed reach or other applications
`where critical control of mud
`properties is essential it can be
`used in well-planning, for opti-
`mization and trouble-shooting
`during drilling and for post-job
`analysis.
`When real-time pressure-
`while-drilling information is not
`trnnsmitted by the MWD/LWD
`
`>PACKEIS
`
`tools, the simulation technology
`can be used in calculations
`aimed at minimizing excessive
`surge pressures while tripping.
`The program evolved from
`two concepts. The rheology sec-
`tion talces full advantage of
`available well and mud data
`from the specific fluid inuse and
`combines it into data cubes
`which use 3-D interpolation to
`provide maximum accuracy for
`rheological predictions. The sec-
`ond, for hydraulics. subdivides
`the annulus and drill string into
`hundreds of short segments,
`each described by its own set of
`parameters. Interaction be-
`tween segments is used to
`improve realism, and interpre-
`tive (fuzzy) logic models pararn-
`eters when adequate hard data
`are unavailable. Special con-
`cerns adclressed by the fuzzy
`logic solutions include hole
`
`cleaning, barite sag and stuck
`pipe potential.
`In addition to the 3-D data
`cubes and interpretive logic
`techniques, specific innovations
`appearing hr the new software
`include finite diiference analysis
`methods to evaluate hydraulics,
`rheology and density and "snap-
`shot" views of dynamic down-
`hole conditions at specific
`points in time.
`In the field, rsults have con-
`sistently matched measured
`data. In a recent Gulf of Mexico
`well, Virtual Hydraulics was
`used to predict equivalent circu-
`lating density (ECD), static fluid
`density and frictional pressure
`losses, as well as make pump
`presure calculations. The actu-
`al ECD measurement, as veri-
`fied by a pressure-while-drilling
`tool, was within 0.07 ppg of the
`estimated value.
`
`Reliable lone Isolation In Horizontal Opel Holes
`
`M-Eny operators with long
`istorics of success with
`p'ressure-set openhole packers in
`vertical wells felt the need to
`convert to inflatables when wells
`turned horizonml. From Canada
`comes an innovative new open-
`holc pressure-set packer espe-
`cially designed for horizontal
`wells. Called Wizard” [1, from
`Dresser Oil Tools’ Guiberson
`Division, the packer can be run
`on casing sizes ranging from 45-
`in. (3%-in. openhole) to 9%-in.
`(8%-in. openhole), and tubing
`ranging from 2%-in. to 7-in. The
`tool is set byapplying pressure to
`the tubing or liner, and the initi-
`ating pressure mn be adjusted so
`that multiple packers can be
`selectively set. The packing ele-
`ment is stroked by an internal
`hydraulic cylinder: After it is set.
`the packoff is locked in place
`until it is released by shearing.
`An innovative ramp-style sys-
`tern provides a large extrusion
`ratio for element expansion.
`
`without compromising rugged-
`ness or reliability. According to
`the manufacturer, element life
`expectancy exceeds 20 years and
`can be configured for high tem-
`perature or sour service. Appli-
`cations include horizontal well
`segmentation, water or gas shut-
`off. stimulation or service tool
`work in openhole and produc-
`tion testing of horizontal well
`segments.
`Recently in Canada. Wizard
`11 packers on tubing were used
`to replace a cemented liner.
`Operators have reported failure
`rates with inflatable openhole
`packcrsupto75%during l year.
`Post-failure analysis identified
`the inflatable element as the
`weak link. It was neither rugged
`nor durable enough for pro-
`longed use in horizontal applica-
`tions and the smallest leak ren-
`dered it useless. The greatest risk
`to an inflatable exists when it is
`deflated for moving, Often the
`element does not deflate com-
`
`
`
`Tho Wlzld ll Openhole Pressure
`Set Pacltcr is designed for hori-
`zorrtd wells.
`
`pletely, leaving a slightly over-
`sized profile to snag or tear as
`the work string is pulled.
`
`JUNE 1998
`
`Hart’s Petroleum Engineer International
`
`13
`
`15
`
`15
`
`

`
`i
`
`Windows“ g
`
`Spreadsheet 7
`
`Program
`
`1+,” :3 rm-"I.
`*GIkIiiIII'lIll|1I'I|IlIn
`
`5
`
`group ol easily used
`
`The Petroleum Engineering "Tool KiL" series is a.
`gas professional. The
`worksheet programs developed for the oil and
`e calculations
`"Tool Kit” programs are designed to perform th
`required for managing oil and 9:: properties. Versions of the
`gned to mn on Lotus ‘I23’ for Wundows’, Excel‘ 5.0
`programs are desi
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`
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`20% discount with first time purchase
`of 3 or more "Tool Kit" packages.
`
`‘.’L‘:"“"}z’-'1'-‘."-'ull!1lC~, -:.v;.rpev.:::r -‘lcL-rm-3. a.-la‘ spccla.’ upgrade palsy: in! ,*.-‘cairn-r-l-,« _;:~u,-‘r."!-1:;
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`f'ri::rL-cl riccunts-r
`prog,".>rns oil rem.-«re 3:2:z'a:.'s?:m :I.:(.'v.-.-1.'rI'fr_‘. mn. Wlic‘.-'1 -:.'*.:'.».-l?‘.:.-*:s=-'.‘.‘ "1.
`v' En».
`vt‘r;l~:m a1--,r‘n-:5. Lotus 1’? Ir.-I 1-‘a.-'.rr.iaws, cm.‘-‘i'c‘-.r .'—‘-1, o
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`To order the Pelrolt.-um Engineering “Tool Kit" so111_..'\i}'1-'r.1r;g;!1l:
`Hart Publications, Inc.
`4545 Post Oak Place, Suite 210
`Houston, TX 77021
`800-874-2544
`Fax 713-840-8585
`
`MONEY BACK c.uAnA‘u'lT-.tE
`CircIe1lU
`
`16
`
`16
`
`

`
`
`
`Vhnutsnd harrah SM d.:)
`C-urln -.-:i.uu-.1 l«.:u- :ondon::m-
`
`Mm-uh ‘N*9B'
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`-fip¢i|.10'¢§‘
`.37.
`,
`\_.'
`v. ‘.-
`
`.
`
`I: UI|F’r.'-‘lb:-1:.-.~
`
`Sumumr diurnal