• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Swellable packer assemblies for providing a physical barrier inside a wellbore are provided. In one embodiment, the swellable packer comprises at least one seal element disposed on an outer surface of a tubular body portion which swells when contacted with one or more gases, the seal element comprising a polymer derived from a perfluoro vinyl monomer.
    公开号:DK201600747A1
    申请号:DKP201600747
    申请日:2016-12-07
    公开日:2017-01-16
    发明作者:Ramesh Muthusamy；Anupom Sabhapondit；Rahul Chandrakant Patil；Sandip Prabhakar Patil
    申请人:Halliburton Energy Services Inc；
    IPC主号:
    专利说明:

    BM'MOROUNB
    The present disclosure relates tø the use of swellshie packers insubterranean welibore operations and related industries.
    It is well known that swellahfe packers can be used to create a physical barrier isolating different wm$ of an opsin wellbore from one another in the dolling process. The packer 'assembly may he introduced downhole in an unexpanded fenu5 until positioned within the wellbore where isolation is needed. The packer may then be nreohapicahy exptaded or exposed to afbud u water) to trigger the swelling of the pa#er’Tseal elehierit. The swelling or expansion of the packer is designed to create a harrier between the downhole string and the inner casing or exposed: wall of the wellbore, These: barriers are generally able to withstand high temperatures and pressures, allo wing, lor complete i solation of different «odes of the well, in some instances a rgipdvahle packer may be used wherein die packer is irmedhced downhole and used tor completion of a joh, but is then retrieved by .refracting the seal element so that the: packer can be retrieved from the/wellbore, 1 TIlese drawings illustrate certain aspects of some of åé embodiments of the present disclosure, and should not be Used to limit or define the disclosure.
    Figure 1 shows a partially cross-sectional view of & well system embodying principles of the present disclosure^
    Figure .:.2, is an enlarged scale cross “.sectional, view of a packer assembly embodying principles of the disclosure.
    Figure 3 shows a partially cross-secttbnal view of an: alternate embodiment of the packer assembly.
    Figure 4 is a schematic fepresenfetlbn of polymer synthesis embodyisg pjincipies of tre present disclosure.
    While embodiments of this 'disclosure have been depicted and described and are defined by reference to example embodiments of the dlselosdrc, such references do not imply a limitation on the disclosure, and no such limitation k to be inferred, The; sni^cet matter disclosed is capable of considerable modification,, altemtion, and equivalents in ferm and function^ as will occur to those skilled m the pertinent art and having fee benefit of this disclosure, life depicted and described embodiments of this disclosure are examples only, and not exhaustive of tlre scope of the disclosure. > Å,
    Illustrative embodiments -.of iBe present disclosure are described in detail herein; In the .interest of clarity* not all features of ars actual fmfelententatioft may be described in tins speemeatfon, It will of course be: appreciated thai: In the dsv©lopnte:ni; of any suck actual embodiment, nunterous iiftpieii eniSdQ».T^5epiltb decisions may be made to achieve the specific implementation goals, which may vary from one implementation to another. Moreovers it wiil be appreciated that such a development effort might fee, complex and iimfecohsmumgs but would, nevertheless be a rpMme undertaking for those of ordinary skill in the art having the beneiit of the present disclosure, the present disclosure relates generally: to subtémmemi: wellbore operations. Specifically:, the systems and methods of the present disclosure generally involve a swdlablc : packer assembly tor providing a physical barrier inside a wellbore. Fmthermore, the present diaelosure can be used to design retrievable packers, Uonventipnal retrievable packers are activated. by mechanical systems that can requite difficult and. complex tool desip and arrangement to achie ve tbe necessary expansion and contraction of the packer system. Using the: present .disclosure, retrievable swcllahle packers, could be introduced into a wellbore add: activated by exposing the seal element to: one orrnnre gases such as gaseous hydrocarbons (such as methane, ethane and natural ps, wMch are nmtdimirihg examples^ hydrogen sulfide, carbon dioxide, carbonic acid and/or hydroeKloric aeid, After completion of a je% the packer could fee deactivated by removing the source of the gas.: allowing the seal clement to retract and fee removed -fern the well, the sweilafele packer assembly of the present disclosure generally comprises; a seal element disposed on a tubular for Use with a downhole string. The seal element comprises a sweilafele polymer designed to swell when contacted with a gaseous hydrocarbons, carbon dioxide, and fluids comprising dissolved gases such as hydrochloric add and carbonic acid. In facilitate a better^ uMeManding of the prcaeM disdloadf«*. ^effollewing examples of certain embodimems are given. Is no way shooM the Ifellowing examples be read to; limit, or define, the scope of the disclosure.
    The terms; %onpi:ef!: or “couplesT as used herein art intended to mean cither ah indirect or direef connection, Tht% if a first device couples te a Second device, that eotmection may be tbrpugfe a direct eormectlon,. or through an Indirect cofeneetion via other devices and connections. The term aupholc!i as used herein means along the drillstring or the hole from the distal end towards the mtimt, and “downhole'5 as used.herein means: airing;the drillstring or the hole from, the surface towards the distal end. However, the ose nfrthe ierms: “uphfe&f and “downhoir1 is not intended to limit the present disclosure to: any particular wellbore: ·* developing Vertical wellbores, horizontal wellbore, deviated wellbores or any "-ether desired wellbore configurations.
    Generally, the polymers useful in embodiments of the packer assembly of tire present disclosure comprise polymeric materials that swell· in the presence of gaseous hydrocarbons (such m- ethane and natural gas, which are non-limiting- examples), hydrogen sulfide, carbon dioxide, carbonic acid and/or hydrochloric acid. By %weify 4^welling'b or '^wellaMe” it is meant herein: that the polymer increases its volume upon exposure to gaseous hydrocarbon, hydrogen sulfide, carbon dioxide, carbonic acid and/or hydrochloric acid, typically such that the resulting volume is greater than would he hXpeetcd by mere Bnear addition of the polymer volume and the volume of gaseous hydrocarbon, hydrogen sulfide and/or carbon dioxide. In Certain ^b^imeh^/élbis’Weiiibg dan result in at least a 10% increase in the polymer volume and can result in at least a 13% increase, at least a 30% increase in the polymer volume, lb certain embodiments, the sweliablc polymer at least swells upon exposure to carbon dioxide but, can also swell upon exposure1 id- hydrocarbons, hydrogen sulfide, carbonic acid aftd/or hydrochloric acid,
    In certain embodiments, the swellabie polymers used In thdr«thbodmjente- dt'#® present disclosure comprise polymers that are swellabie in the presence of a gas such as carbon dioxide at a temperature below 250" C and at a pressure below 1000 bar. Generally, the polymers can be swellabie in carbon dioxide at tchipemturea beltrw 200° €, below 150* (/ or below 100° C and at a pressure below 700 bar, below 500 bar or below 100 bar. I'hesc temperatures and pressured are not intended to limit this disclosure as any range or combination of temperature and; pressure may be appropriate to the extent that: the polymer: lysrili swell|b!b as defined above
    In Certain embodiments, the swellabie polymers used In the embodiments of the present disclosure can he derived from a perriuom vinyl monomer. Additionally, the polymer can be derived from at least one mono-vinyl monomer and at least one di-vinyl monomer. Hie mono-vinyl monomer can be selected from: the group consisting of: alkyl acrylates, alkyl juethacryiates, cyelohexy!acrylates/ cyelohexyi methacrylates, aryl acrylates, aryl methacrylates, auinoalkyl acrylates, aminealkyl methacrylates, perbuoroalky! acrylates, perfluomalkyl methacrylates, alkyl vinyl ethers, pertlitoroaliyi vinyl ethers, styrene, acrylonitrile, 2-vinyl pyridine, 4-vinyl pyridine, acrylic: acid, methaeryhc acid, and: vinyl acetate, The di-vinyl monomer part be selected- from the group consisting ofi alkane dtp!; diacrylates, alkane diol dimeiiacryiaies, alkehe glycol dlacrylaies* alkene glycol dimothacrylateS:, alkane diol diviny! 4 specifically, tlteswellabte polymer can be a fiaorinated acryiate polymer produced iron) 1.¾ IB, 2H, 2HdterflurooctyIacryIale and ethylenedlmethacryfate monomers. Other types of vinyl monomers may be used to the extent that the resulting polymer is still swellable, as defined above.
    The illustrative evrteodlment of Figure 1 shows: a welt system 10: which embodies principles of the present disclosure, In the sy stem. 1.0, a packer assembly 12 is used a provide, a iltiid and pressure bamer ll an annulus 14 formed between a tubular lb and a wellbore interior surface Ilk Althongb the surface 13 is depleted In Figure 1 as being formed os an interior pi. a casing, liner or other type of tubular string 20 which is encased in cement 22, the surface 18 conld instead be formed on an interior wall of a fimnatios 24 (for example, In an uncased portion of the well), or could be any other surface in the well, The packer assembly 12 includes a seal element 26 which, is outwardly extended in order to soalingly contact the surface 13. in this embodiment, the seal element26 is disposed on the tubular id..
    In tire illustrated example, titeiseal efen)eut 2.6ihcludes a. swellable polymer which swells In response to contact with gaseous; hydrocarbons, carbon dioxide, and fluids comprising, dlssohwd gases. Further:, in this embodiment, the seaf element 20 Is restricted from displacing longitudinally in the annulus 14 by means of end rings 28 positioned at opposite e-ids of the seal element 26.
    Referring additionally now to Figure 2, a schematic cross-sectiona; view of the packer assembly 12 is represeatatively illustrated apart from: the remainder of the well system 10. In flits:embodiment of the packer assembly 12. the end rings 28 are coupled te a tubular 16, In the well system H), the tubular 16 could be provided with suitable threaded end connections (not shown!, and could be eoiupled us a part of a downhole string (not shown,}. The packer assembly 12 could alternatively he used in other well systems, wdthodt depariing from, the principles of the disclosure,
    Referring now to Figure 3 another embodiment of a well system 30 is shown. The packer assembly 32 is shown without: longitudinally'.restrictive; Clements such as the end· rings 23 (shown in Figure 1), The packer assembly 32 is: used :te provide a fluid and pressure: barrier in an annulus 14 termed between a inbular downhole string ,34 and a wellbore Interior surface 18. Although the surface 18 Is depicted in Figure 3 as being termed cm an interior of a easing, liner or other type of tubular string 20 which Is encased in cement 22, the surface 18 could instead be formed on an ulterior wall of a fønnarion 24 (for example, in an tuteased portion Of the well), or could be any other surface in the: well. The packer -assembly· 12: Includes a seal
    syMenria, the seal element 36 is disposed directly on the tubular downhole suing :3C
    Wfeile the particular embodiments and examples of packer Msembles are described above, the swellii« polymers of the present disclosure may be used in any type of picker assembly of any design known in the art, For example these sweilable polymers may be incorporated into packer assemblies having a pre-moklcd sealing dement- In other embodiments, these swellable polymers may: be incorporated into “slip-on” or bonded packer assemblies that may he installed on one or more strings in. a w®libbfe These embodiments are intended as examples: only, as the sweilable polymers may be modified and hieorporated into any type of retrievable or pennanent packer, including hut not limited to tension packers, compressiost packers, and hydraulic-set single and dual string packers. A method of operating the packer assembly Is also povided. The method may include the steps oh providing a packer, assembly comprising a tubular and at least one seal element disposed on the: tabular which swells when contacted with a gas, posiiionmg the packer assembly m at least a porfipn, of a wellbore; bxposlhg the seal element to a gas; and allowing the seal element to at least: partially swell to: contact, the Interior surface of a casing, liner or other type of tubular string which is encased In cement (the surface could instead be formed bn, an interior wall, of a formation or could be any other sm#ce p the well) and the exierior surfeco of the tabular, in one embodiment, the gaseous hydrocarbon, carbon dioxide, hydrogen sulfide, carbonic acid and/or hydrochloric acid, may he supplied from the surface using tubing, pumps, or other conveyance systems. In other embodiments, these substances may be naturally occurring in the well system. M other embodiments, gaseous hydmcMboM, carbon dioxide, hydrogen sulfide, carbonic acid and/or hydroehlorlc acid may he genemfed in situ hi the wellbore, tor example, via chemical reaction of one or more additives introduced into or naturally occurring in the Wellbore. In certain emlxidiments, the method may forther comprise retrieving the packer assembly by disabling the tubing, pumps, or othpr conveyance systems, thereby removing the gaseous hydrocarbon, carbon dioxide, hydrogen sulfide, carbonic acid and/or hydroehlorie acid and allowing the seal dement to M least partially refract such that the packer assembly can he retrieved thite the wellbore to ihé: sarte;, in other embodiments, the carbonic acid, and/or hydroehlorie aeid removal may be facilitated by supplying an alkaline solution to nentMlize the aeM and accelerate the retraction of the sea! element, $
    The Allowing .further -if® polymer: used in this .disclosure.
    Examples 1-4 illustrate polymer synthesis mid Examples 5-7 illustrate the swelling of the resultant polymers aecerding to certain emltodimems of the present disclosure.
    Example 1 A polymer comprising 1¾ FPL 2H, 2H-pcrllurooe^laerylate (PFØA) monomer anti ethylenedimetteryiaie (EDMA) mmotmr was prepared as follows. ΡϊΤίΑ (98 mole-%) and BDMA (2 mole-%) were mixed together in a glass tube and then axobislsobutyronitrilc (AIBN) was -dissolved: iti the mixture in. art amount of I moie-% based on the total moles: of PFOA and EDMA:> AlBN was added as a ifoe iadldal initiator. The: mixture was then purged with nitrogen for 15 minutes and then :s#Md, lire reaction was carried out at 158TF (7CP G) for SOhoum, The resulting polymer was washed with methanol repeatedly and then dried at 3(ri € % 24 hours. Å schematic representation: of this polymer .synthesis is dhown in Figure 4,
    Example 2 A polymer comprising 11¾ IB,; ^Ij.j^Hrperfforood^iiadJiyiate (PFOATmonrimsr, dimethyl amino ethyl methacrylate: (BMAEMA) monomer and ethylenedimeihaerylate (llDMA) monomer was prepared as follows.: PFOA: (b& mole-%)* DMABMA .(30 mole-%) and ÉDMÅ (2 rooie-IA) were: mixed: together In ;a glass tube and then axoBirisobutyronitrilc: (AlBht) was dissolved In the mixture in an amount of I mole~% based on the total moles of PFOA, DM ABM A and BDMA. AIBN wap; added as a See radical initiator. The mixture was then purged with nitrogen for 15 minutes and then sealed. The reaction was carried out at 158° F (70° G) for 20 hours; The; resulting polymer was washed with methanol repeatedly and then dried at 50° G for 24 hours.
    Example 3 A polymer comprising 1H, 1:11, 2H, 3ll:^pe3l3urooctylacrylate: fPFOA) romlomer, : methyl methacrylate (MMA) monomer; add ethylenedimethaerylatc (BDMA) monomer was prepared as follows, PFOA (70 «ofe.%), MMA ;(28 mole-M) and BDMA (2 mole~%) were mixed together in a glass tube and then azobisisobutyronitrile (AIBN) was dissolved; m the. mlxinram. an mnount of 1 :n:mle-% based on: the total mples of PFOA, MMAand BDMA. ΑΪΒΝ wasaddea as a nee radical initiator. The mixture was then purged with nitrogen for 15 minutes polymer was washed with methanol repeatedly and then dried at 50ft C fer 2#
    Exampled A polymer cOfttprislag 1Ή», 11¾ 2H, 2Bi>eTfl^0ctyi&amp;cryIate; &amp;%ύή) monomer, dimethyl amino ethyl methacrylate (DMABMA| nmnemer, methyl metterylate (MMAT monomer |nd ethylenedimelhaerylate (Β17ΜΛ) monomer was prepared as lollOws; EFOA <3t Mledyt DMABMA (40 moie~%h MMA (20 mole~%t and BDMA (2 tholeAA) were mixed together in a glass tube and then a:®hisiaohoiy»mittiie (A1BN) was in an amount of I rnole~% based on the total moles of PPOA, BMAEMA, MMA and ΕΒΜΛ, A.IBN was added as a free radical initiator. The mixture was then purged with nitrogen ibr 15 minutes and then sealed. The reaction: was carried out at 158* F (70° €} -for 20 hours. The resulting polymer was washed with methanol repeatedly and then dried at 50* 6 tor 24 hours.
    Example 5 A polymer produced in accordance with lixarnple 1 was placed in a measuring cylinder and then placed in a see-through autoclave to observe its swelling in the presence of carbon, dioxide. The temperature in the autoclave was 75* f (24° €f Alter removing the air, carbon dioxide gas was applied and maintained at 700 psi. (about 4820 kBa), lire swelling; of the polymer was: observed within five minttfes· in the measuring cylinder, The polymer swelled noticeably, When the polymer was removed from the carbon dioxide environments It returned to: its original; volume (dewwellmg).
    Example 6 A polymer produced In accordance with Example 2 was placed in a: measuring cylinder and then placed In a see-through autoclave to observe its swelling In the jpesence of carbon dioxide, lire potyfner level in; cylinder was about 2:2 mi. The temperature In the autoclave was 75* F (24° C). Alter removing the air, carbon dioxide gas was applied and maintained at 700 psl;(^ht'4'826'::l :Pa). The swelling of the polymer wax observed within ftve minntes in the measuring cylinder, lire polymer swelled noticeably to about :25 ml in the Cylinder,
    Example 7 8 cylinder and then placed in a see-through autoclave. The polymer level in the cylinder was about 19 ml The temperature in the autoclave was 75° F (24c C). After removing the air, carbonic acid was applied and maintained at 700 psi (about 4826 kPa). The swelling of the polymer was observed within five immites in the measuring cylinder. The polymer swelled noticeably to about 28 ml in the cylinder.
    One embodiment of the present disclosure Is a swellable packer comprising: a substantially tubular body portion configured for incorporation in a tubular string; at least one seal element disposed on an outer surface of the tubular body portion which swells when contacted with one or more gases, the seal element comprising a polymer derived from a perfiuoro vinyl monomer, the seal element having first and second axial ends; and first and second end rings disposed around the tubular body portion adjacent each of the first and second axial ends of the seal element Optionally, the seal element is disposed around the tubular body portion. Optionally, the body portion is coupled directly to a downhole string for insertion into an open wellbore. Optionally, said polymer is derived from at least one mono-vinyl monomer and at least one di-vinyl monomer. Optionally, said mono-vinyl monomer comprises at least one compound selected from the group consisting of: an alkyl acrylate, an alkyl methacrylate, a cyclohexyl acrylate, a eyelohexyi methacrylate, an aryl acrylate, an aryl methacrylate, an arninoalkyJ acrylate, an aminoalkyl methacrylate, a perfluoroalkyl acrylate, a perfluoroalkyl methacrylate, an alkyl vinyl ether, a perfluoroalkyl vinyl ether, styrene, acrylonitrile, 2-vinyl pyridine, 4-vinyl pyridine, acrylic add, .methaerylic acid, vinyl acetate, and any combination thereof. Optionally, said di-vinyl monomer comprises at least one compound selected from the group consisting of: an alkane diol diacrylate·, an alkane diol dimethacrylate, an alkene glycol diaerylate, an alkene glycol dimethacrylate, an alkane diol divinyi ether, an alkene glycol dlvinylether, divinylbenzene, an ally! methacrylate, and an ally! acrylate.
    Another embodiment of the present disclosure is a swellable packer comprising: a tubular member; at least one seal element disposed on the tubular member which swells when contacted with one or more gases, the seal element comprising a polymer derived from a periluoro vinyl monomer. Optionally, the seal dement is disposed around the tubular member. Optionally, the tubular member is disposed around a downhole string for positioning inside an open wellbore. Optionally, said polymer is derived from at least one mono-vinyl monomer and at least one di-vinyl monomer. Optionally, said mono-vinyl monomer comprises at least one compound selected front the group consisting of: an alkyl acrylate, an alkyl methacrylate, a cyclohexyl acrylate, a cyclohexyl methacrylate, an aryl acrylate, an aryl methacrylate, an 9 mrfikerylate, au alkyl yfi|yj ethjéÉ,· s vinyl éthest styrene. acrylonitrile, 2~vinyl pyridine. '4-vi»yl pyridine, acrylic aeid, røethacrylie aeid, vinyl acetate;, ;and any combination tbereofi Optionally, said di-vinyl mosomer comprises at kast one compound selected trom the S group consisting df: an alkane diol dlaefylate, an alkane diol dimeihacrytite, an atone: glycol diawylate, au atone glycol bimethacryiate, an alkane diol diyinyl ether, an atone glycol divloyleiher, btvioylbenzene, an ally! methacrylate, an ally! acrylate, and any combination thereof
    Another embodiment of the present disclosure is a method composing: providing a D packer assembly comprising a tubular member. and at: least one seal element disposed, on the tabular which swells when contacted with one or more: gases: positioning the packer assembly in at least a portion of a wellbore; exposing the seal element to one or ruom gases; : and allowing the seal; element to at least partially swell to contact a portion of an. interior surkee bf tfc wellbore and the exterior surface: of tire tubnlar, Optionally^: the packer assembly is coupled to att 5 iusirnmetit string for imerdpn Mto the wellbore. Optionally, the packer assembly is disposed around, the downhole string for insertion into the wellbore. Optionally, the one or more gases comprise carbon dioxide, Clptionally, the carbon dioxide is introduced to the seal element: upon being positioned in the desired portion of the wellborn using a piping mechanism tom a surface location. Optionally, the method further comprises disabling the piping system front the surface } location to remove the source of carbon dioxide from the wellbore. Optionally, the method further comprises allowing the seal element to at least partially retract, breaking the contact with the imefior surface of the wellbore. Optionally, the seal element bather comprises first and second axial ends, and the packer assembly further comprises first and second end rings disposed around the tubular member adjacent each of the first and second axial ends of the seal clement. > Itoreibre, the present disclosure is well adapted to attain the ends and advantages mentioned as well as those that are internt therein. The particular embodiments disclosed above are illustrative only, m the present disclosure may be modified and practiced in different hut equivalent manners apparent to those skilled in the art having the benefit of the teaehings herein. Mo limitations are intended to the details of eoostrnotion or design herein shows, other ) than as described in the claims below. Even though the figures depict embodiments of the present disclosure in a particular orientation, it should be understood by those skilled in the art 'that' embodiments of the present disclosure: are well spited for use in a variety of Orientations, Accordingly,, it should be understood by those skilled in the art that the use of directipnalderms such as above, below, upper, lower, upward, downward and the like are used in relation, to the 10 the: top bf'the corresponding figure and the downward dioaction feeing toward the hoftern of the: corresponding .figure,.. While systems an# methods: are described in terms of Aiønapising,” ^eoMdnMgj^ dr “including” various components or: steps, the systems and methods can also “consist essentially 6f“ or “feonsisi oP the various components add steps, All numbers and ranges disclosed above may vary by some amount:, Whenever a numerical:rattge: with a lower limit and ad upper linn! is disclosed,, any number and any included range falling within the range is specifically disclosed. In particular every range of values (ofthe #itn, shxom about a to about bA or, eguivalentlyv “finm approximately a to hA or, equivalently, “from approximately adi**), disclosed herein is to be miderstopd to act, forth; every himiher and: range encompassed within the broader range of values. Also, the terms in the claims have their plain, ordinary meaning un|ess: otherwise explicitly and clearly defined, by the patentee. Moreover, the indefinite- mtteig$'*V or “auf5.as used in the claims, are defined herein to mean one or more than one of the eleineot that it introduces. If there is any conflict in the usages of a word or term in this spedfi cation and one or more patent or other doci.nnei.vLs that may be incorporated herein by reference, the definitions that arc consistent: with this specification should he adopted. 11
    权利要求:
    Claims (14)
    [1] 1. A sweliafele packer comprising; &amp; subAantlally tubular body portion configured for incorporation in a tubular suing; at least one sea! element disposedon m outer surface of ilte tubular body portion which swells when contacted with one or more gases, the seal element comprising a jxdyraer derived front, a perfluoro vinyl monomer, the seal ciement having first and second axial ends; and first and second end rings disposed around the tubular body portion adjacent each of the first and second axial ends of tho sea! elerneut
    [2] 2. The packer of claim 1 wherein; the sea) element is disposed around the tubular body portion.
    [3] 3 . The packer of claim 1 wherein: the body portion is coupled directly to a downhole string for insertion into an open wellbore. 4s. 1¾ packer of claim 1 wherein; said polymer is derived from at leastone monowinyl monorner and at least, one di-vinyl monomer.
    [5] 5. The packer of claim 4 wherein: saidmono-vinyl monomer eomplses at least one compound selected fern the grøhp consisting oh an alkyl acrylate, an alkyl methacrylate, aoyclohsxyl acrylate, a eyelohoxyl methacrylate,: an aryl acrylate, acrylate, an aminoalkyl æethacrylsté,,aperfluoroaIkyl acrylate, aperfluomalfcyl methacrylate, an alkyl vinyl ether, a pcrfluoroalltyl vinyl ether,tsiyrene, aefylomirrifi, 2-yiny! pyridine, 4“Vinyl pyridine, acrylic aeidj nteihaerytleacid. vinyl acetate, and any combination thereof
    [6] 6. The packer of claim 4 Wherein said dTvinyl numomer comprises at least οϊ .φ·:group consisting; of: an alkane diol diaery late; an alkane dlol dimelhacryfsic, an alkenc glycol; diaefylnte, afralkeneglycol dlMeihaorylatc, an alkane did I divinyl ether,: an alkene glycol divinyieiher, divinyibenzene, an allyi methacrylate, and an ally! acrylate. . A swellable packer comprising:; a, tubular member; at: least one seal element disposed on the tubular member which swells when contacted with one or Mote gases, the seal; element comprising a polymer derived fi'dm a perfluoro Vinyl monomer. 12 the seal element 1$ disposed around the tubular mentbCf,
    [9] 9. The packer of claim 7 wherein: the tubular member is disposed around a do wnhole string åh positioning inside an open wellbore,
    [10] 10, The packer of claim 7 wherein: said potpj^ls-d^ at least one mono-vinyl monomer and at least one di~vinyl monomer, 11, : The packer of claim TO wherein: said jsono-viayl monomer comprises at least one compotmd seleeted åpru the group consisting; oh an alkyl'acrylate, an alkyl methscryiaiCj a eyclohexyl acrylate, acyeiohexyl methacrylate, an aryl acrylate,: an aryl metliacrylate,-m amlnoalkyi acrylate, ah; aminoalkyl methacrylate, a perhnoroalkyi acrylate, a perSnoroalkyl methacrylate, ait alkyl vinyl; ether, a perfiuoroalkyi vinyl. ether, styrenei acrylonitrile, 2~vinyl pyridine, 4-yiny! pyrMlne,:acrylic acid, mctbacryllciacid, vinyl acetate, and. any eombloai!oh thereof 12, the packer of claim 10 wherein: said diwinyi manomcr comprises at least one compound selected; iOrø the group consisting of ah alkane die! dlacrylate, an .alkane did dimeihaerylate, an aikcne glycol diacryiate, analkene glycol dimethaerylate, an alkane dloidivinyl ether, an aikene glycol dtyidyldiher, diuinylbenachc, an ailylmetbaeryiate, an allyl acrylate, ahd any combination thereof,
    [13] 13. Λ method comprising: providing a packer assembly comprising: a tubular member; and at least one seal elemmU disposed on tl® tubular which swells when contacted with one or more gases;; positioning thepacker assembly in at least a portion of a wellbore; exposing the sea! element to one or more gases; and alio wing the seal element to at least, partially swell to contact a portion of an interior surface of the wellbore and the exterior surface of the tubular,
    [14] 14. The method of claim 13 wherein: the paeker assembly is coupled to ah;.iiat^te#åM»g;fpf ihksrtiea ipfothe wellbpre, 13 the packer assembly Is disposed around the downhole string' fdi·Msemtiøfc into the. wellbore;.
    [16] 16, The melted: of dates. 13 wherein the one or more gases comprise carbon dioxide,··:
    [17] 17, The .method of claim 16 Wherein: the carbon dioxide is introduced to the seal pierøentiajxyi· IrøBg'i^eitiofteddh' the desired portion of the wellbore using a piping meebtelsm from a surface·location;;.
    [18] 18, The melted of claim 17 further comprising: disabling:; tte piping system from, the surface Ideation to remove the source of carbon dioxide frote the Wellbore.
    [19] 19, The method of claim 13 farther comprising: allowing the-seal element to at least partially retract, breaking the contact with the interior surface of the wellbore,
    [20] 20, The Method of claim 13 wherein the seal element, farther comprises first and second axial ends, and the packer assembly fttebte:comprises first and: second end rings disposed around the tubular member adjacent each of the first and second axial ends of the seal element. 14
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    同族专利:
    公开号 | 公开日
    WO2016022093A1|2016-02-11|
    GB2543204B|2021-02-24|
    MX2016017012A|2017-05-03|
    GB2543204A|2017-04-12|
    US10487612B2|2019-11-26|
    DE112014006859T5|2017-04-20|
    DK179898B1|2019-09-04|
    NO20161963A1|2016-12-12|
    GB201700132D0|2017-02-22|
    US20170138149A1|2017-05-18|
    CA2954335A1|2016-02-11|
    CA2954335C|2018-11-27|
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    法律状态:
    2019-09-04| PME| Patent granted|Effective date: 20190904 |
    优先权:
    申请号 | 申请日 | 专利标题
    PCT/US2014/049613|WO2016022093A1|2014-08-04|2014-08-04|Gas responsive material for swellable packers|
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