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`"
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`'
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`'
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`‘Hike the tortgevttyét
`downright toughness
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`Open- Hole Or Cased And Cern erted
`
`‘It just doesn t‘ quit".
`Rog Mxtthrlry
`—Owner. Operator
`
`'
`
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`THE urresr ISSUE
`
`Open-Hole Or Cased And Cemented
`nwnagtnapms and cons armmwm obotoae flsrcmflhsc
`hattzontab
`
`[PrhtMtds: tvamosrzan. by 5'-°etRodra] As the use of multiple tracture
`stimuiafions in horizontal wefibores skyrocketed in recent yeats. a debate
`emerged overthe best comptetion method: open-hoie be! drop orcased and
`cemented hotes‘?
`
`It boils down to a question ot whether mechanical packets or cement provide the
`best means of isoiating between trac stages duting muttipie commetions in
`hotizontal weibores.
`
`Murray Fteynoids. a veteran completions engneer with TAQA North Ltd.. iooked
`at the advantages and disadvantages of each system in a presentafion at an
`Intocast tight oi conference in Catgary in September.
`
`The open-note bafl-drop system is typicatty associated with Calgary-based
`Packers Pius Energy SBMDBS |nc.. though a number of competito also run
`sirrflar systems. A packeris set in the extemal casing. uncemerled. In the case of
`the Packers Ptus Shct(FRAc system, bans made otthermat-piastic material such
`as Teflon are dropped into the we! to start asteeve. isdate the previous trac and
`open the next trac port up-hole.
`
`Other open-hoie systems use a dart instead ot a bal to shift the steeve. Others
`use swefiabie packets where an eiastomerelement reacts with the wefibore fluid
`or temperature to expand. thus creating a seat with the open-hot. Depending on
`conditions. it coutd take a week or more tor these to be set up in a wfibore betore
`atrac operation begins.
`Mmt of the fractured horizontatwefl compteions in western Canada use open-
`hote packer-based systems. which may be the cheapest option.
`
`Protessinnat The Barnett shale is currentty aimost 100 per cent cased and cerrented.
`
`Be a Supply Chain
`
`tril. nnnmnuuun, ennu-
`nNILex
`E I-us i<.‘.m -:I4:- rt I rut Sr.-t uf. I -ant.
` wwu nttpz (om
`
`Fteynotds noted that earty experimens with open-hate gave poorerresuttstrom
`the standpoint ot microseisrnic monitoring as we! as production pertormance.
`On the otherside ot the debate are the advocates of my cemented tinets. These
`
`wek are typicaiy more expensive Aato complete. but aitow rnax'mum control of
`fracture placement providing there is good Agcemenfing in the horizontal section.
`which can sometimes be achafienge.
`
`Listing the pros and cons of each system. Reynoids sad the big advantage of the
`open-note packer system is that its a fitgcontinuous trac process. It can be done
`quictdy it logistics flow everything to be located on site. "If you're pumping
`100.000 kiograms pertracture stage. you might I1ot be able to da italt in one
`day.” he said."But generaaymyou can do 15 tracsin aday. or more."
`
`t1:tp::'twww.rt-ewtecrunage:irte.oomttrtdes<.pt'tptrtenrstarchived-arfic|est1853-opet't-hole-or-cased-and-oemeroed
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`1 of 4
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`1.-'4
`Exhibit 2009
`IPR2016-01517
`
`

`
`6‘24r'2D15
`
`Operr- Hole Or Cased And Cern erted
`
`NEW TECHNOLOGY MABAZINE SUPPLEMENT
`
`MUL'I15TMiE FRAOIGNG
`AND HORIZONTAL DRILLING
`
`WINUZIHUH
`QNITIIHU
`
`FOUNDATIONS MAGAZINE
`
`PRESCRIPTION FOR PROGRESS
`
`,._4vu _-. -...._.__._..._...... ._.._
`] Foundations
`
`
`
`Other advantages include high pump rates and the fact that there's no frac fluid or
`proppant imif. Also. Reynolds said open-hole completions may enjoy a slight cost
`advantage over cased and cemented trek.
`
`the
`on the downside. one of the disadvantages of open-hate Agsystenrs
`number of frac intervds has historically been Emited to about 2:1 stages. fir¢',"But
`now mmtiptier systems Agate beconing avalabte where we can has up to E0
`stages." firgso there may be fewer limits Agin the number of stages. Reynolds
`conceded.
`
`Open-hate systems have less contra: over frac iength and frac placement. he
`said. "In tight oi. as in tightgas. tractrrre hart-length is everything." Frac firg,hatf-
`iength refers to the radiai distance from the weflbore to the outer tip of a fracture.
`Atso. he said seting the hydraulic paclers may create frac initiation points.
`
`It the baa aren't recovered. the operator may need to mil out the baits and seats.
`addng significant cost. However. Fteyndds noted one vendor has retrievable
`bailtseat assemblies.
`
`Looking at the pros and cons of the cased and cememed systems. Reynolds said
`two big advantages are longerfracs and more control over where each frat:
`initiates. He befieves one of the biggest future innovations of cemented
`completions rm be the opportunity to use cemented frac ports. which can be
`shifted with a ball or coded tubing.
`
`"This is. I ttink. the future. We've run a coupte of these. [We've had] very good
`results in terms of fracture ptacement and productivity." he said about cemented
`trac ports. which he called a"potentiat breakthrough technology for cemented
`completions."
`
`He said cemented frac ports are cunentiy being used in relativetyshflow
`appicafions such as in uiIo'rrg fight oi in Saskatchewan.
`
`Other new technofofies forcased-hoie frac isolation inoiude compite bridge
`plugs that can be easfiy rrfled out Fteynotds said Hafiburton Energy Services
`has a seit-removing bridge plug that can be set on a timer to explode into a fie of
`ceranic dust-"a may good way to remove bridge plugs.”
`
`On the downside. it takes rhgionger to frac the same number of intenrals in a
`cased and cemented welt than in an open-hole well. This is because of the time it
`tak to perforate and the fact that it isn't a continuous process.
`"People who are looking strictiy at cost are going to probably stick with bafl-drop
`systems," Fteyndds said. But if the operator and its senrice companies are adept-
`and don‘t encounter any problems that extend the operation-the cemented
`completion "can be cost competitive." he added.
`
`In some cases. reservoir conditions may dictate the use of raised and cememed
`completions. In the Horn River. torexampte. packersystems can't withstand the
`high temperatures.
`Reynolds said many innovative tow and techniques are emerging that he
`believes have the potential to change the way muiti-fractured horizontal webs are
`compieted in the future. "Hang onto your hat-there‘s a lot of technicai innovation
`going on.“ he said.
`
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`l'ttpc'lvrnuw.rreNhechmagazine.oomtirrde=<.pt'rpr'rrewsr'archived-ar'ticIesr'1853-oper'r- hole-or-cased-ar'rd-oemerflsed
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`2 of 4
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`Exhibit 2009
`IPR2016-01517
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`

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`
`
`In I). III!
`
`Wehinar Series — Harnessingthe Power of Data Views:
`113
`
`
`
`Open- Hole Or Cased And Cem erted
`
`energy regulator to avoid a potential confict with its
`role as
`
`
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`Since the beginning oi Aprl at this year roughly
`$1.6 hion in eqtity has been raised concurrent
`with mergerand
`
`
`
`An expansion of the existing trarlsporlafion
`infrastructure is needed to connect growing crude
`oi supply from
`
`
`
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`
`
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`
`(Reuters) — Pipeirre company Trarlecatach
`corporation and oi and $5 producer Encarta
`
`632412015
`
`FrorrI1\&'WdlCBl
`rnerI'I1 Friantifioations Of Moore's Law Lead To Trillions
`Added To Global Economy: [HS |1tt1)JkmiWlblzC‘.t3VD
`oilartdgls i'tIp:iR.t:ou“lIhrrAavl.JeN
`About 15 izou rs ago
`
`From ‘Nb’ Wit &I
`rne'rI'I1 mrralta And Hempel Form Strategic Oil And Gas
`Pipeline Coating Partnership httoJr't.coi'rBrDaymTrT?B
`oilandgea ripelnee
`About ltr i![Jlri5 ago
`
`From Nb‘ Wit 1!
`msrriit Mooring integrity Monitoring in Today: Market:
`How BMT is Answering The Challenge
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`.L‘rbout lfi hours ago
`
`From ‘Nth’ Wu: Glerl
`rna'rI'I1 Kelvin Hughes Supplies SharpEye VTS Radar For
`lchihys Field FPSO in Australia hIn:’!ttlJ.i2£rnH|:CvXA9
`oilarnges i1tp:iRcor’vI\i'A.1ire?xK
`About 15 hours ago
`
`From 'I"||IIr Well %'I
`n1srrI'I1 Colorado Cleantech industries Association
`Aooepfingnpplications For Oil€r Gas Gleanteoh Challenge
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`About 18 isou rs ago
`
`Qfiouow
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`3 of 4
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`Exhibit 2009
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`4 of 4
`
`Exhibit 2009
`IPR2016-01517