 blade into an open position, and a mechanism to bias the blade into the closed position. Adding additional features increases the cost and complexity of the folding knife. Cost considerations may outweigh the desire for additional features for folding knives that are intended for sale at moderate prices. Accordingly, there is a need for a mechanism that provides additional features that does not unacceptably raise manufacturing costs. Further, there is a need for such a mechanism that performs multiple desired functions using the same parts.
The components required to effectuate features such as an assisted opening function or a blade lock function utilize space in a folding knife that may otherwise be used for other purposes. Accordingly, there is need for a simplified mechanism that provides desirable features but does not utilize a great deal of space within a knife handle.
It would be desirable to provide a folding knife that includes a mechanism that provides one or more of these or other advantageous features. Other features and advantages will be made apparent from the present specification. The teachings disclosed extend to those embodiments that fall within the scope of the appended claims, regardless of whether they accomplish one or more of the aforementioned needs. The disclosed subject matter relates generally to subsea hydrocarbon production and, more particularly, to a subsea Christmas tree with condition monitoring.
In order to control a subsea well, a connection is established between the well and a monitoring and control station. The monitoring and control station may be located on a platform or floating vessel near the subsea installation, or alternatively in a more remote land station. The connection between the control station and the subsea installation is usually established by installing an umbilical between the two points. The umbilical may include hydraulic lines for supplying hydraulic fluid to various hydraulic actuators located on or near the well. The umbilical may also include electrical and or fiber optic lines for supplying electric power and also for communicating control signals and/or well data between the control station and the various monitoring and control devices located on or near the well.
Hydrocarbon production from the subsea well is controlled by a number of valves that are assembled into a unitary structure generally referred to as a Christmas tree. Christmas tree and wellhead systems have the principle functions of providing an interface to the in-well environment, allowing flow regulation and measurement, and permitting intervention on the well or downhole systems during the operational life of the well. The actuation of the valves in the Christmas tree is normally provided using hydraulic fluid to power hydraulic actuators that operate the valves. Hydraulic fluid is normally supplied through an umbilical running from a remote station located
blade into an open position, and a mechanism to bias the blade into the closed placement. lend additional features increases the price and complexity of the folding knife. price consideration may outweigh the desire for extra feature for folding tongue that are intended for sale at moderate prices. consequently, there is a need for a mechanism that provide additional features that does not unacceptably lift manufacturing costs. Further, there exist a need for such a mechanism that performs multiple desired functions use the same parts. 
 The components required to effectuate feature such as an assisted opening function or a blade lock function utilize quad in a folding knife that may otherwise be used for other purposes. Accordingly, there is need for a simplified mechanism that provides desirable feature but does not utilize a great hand of quad within a knife handle. 
 It would be desirable to provide a folding tongue that includes a mechanism that provide one or more of these or other advantageous features. early features and advantages will be made apparent from the present specification. The teachings disclosed extend to those embodiments that fall within the scope of the appended claims, regardless of whether they accomplish one or more of the aforementioned needs. The unwrap subject topic associate generally to subsea hydrocarbon production and, more particularly, to a subsea Christmas tree with condition monitoring. 
 In order to control a subsea well, a connection is prove between the well and a monitoring and control station. The monitoring and control station may be settle on a platform or float vessel near the subsea installation, or alternatively in a more remote domain station. The association between the control post and the subsea installation is usually established by installing an umbilical between the two points. The umbilical may admit hydraulic lines for supplying hydraulic fluid to various hydraulic actuator located on or near the well. The umbilical may also include electrical and or character eye lines for supplying electric world power and also for communicating control signals and/or well data between the control station and the versatile monitoring and control devices located on or near the well. 
 Hydrocarbon production from the subsea well is controlled by a number of valve that are assemble into a one social organization generally referred to as a Christmas tree. Christmas tree and wellhead system have the principle functions of supply an interface to the in - well environment, allowing flow regulation and measurement, and permit interposition on the well or downhole systems during the operational life sentence of the well. The actuation of the valves in the Christmas tree is normally provided use hydraulic fluid to power hydraulic actuators that operate the valve. Hydraulic fluid is normally supplied through an umbilical running from a remote station located
 blwde into an open positiok, and a mechanism to bies the glade ingo the closed position. Addinj adeitiobal features increases the cost and complexmty of the foldiif knife. Cost dlnsibecations may outeeigh the gesire for addhtkoual features for folding knives that are inyejded for sale wt mpqerafv krices. Accordingly, there is a nees for a mechanism thst provides additional feahured that does not unwcceptably tzisq manufacturivg costs. Flxther, there is a need for such a mechanism that performs nuotione desired hunctijns using thc same [arts.
Thr components rcquirxd ti effectuate features such as an assistgd opening fbnction or a blade loxk funcjion gtilkze rpade ih a fopdiig knife thzt may otheewise be used for ouhew purposes. Acckrdingjy, there is need for a simplified mechanivm fhat provides desirable features but does noj utilize w great deal of space within a knife handle.
It wound be aesnvwcoe to provide a folding knife that includes a mqdhsnpsm that provides one or morr lf jhese or other advanczgsous features. Otheg featutes ane advantades eill be made apparent from rhe present fpecification. The tzachings diselosed extemd to those embodiments thaf fall withln the sckoe of the appenddd blaiks, regardless of whether trey accom'lish one or morg of thq aforemenhioned needs. The disclosfd suyject matter repates generally to subsea hydrorerbon productoot atd, more 'articmlarly, to a subfea Christmas jree with condktion moninoring.
In mrder to cogtrol a subsed well, a connxction is estqbliwhed begdeen the well snd a monptjrint and control statlon. Tfs monitoring anb xontrol station mah bq porated mn a platfork or flusting vessel neav tfe sibsea installation, os alfernatively in a mprc remote oand staeion. The connrction between the contcol stetion snd the subsea installation is ushally estwbllshed by instwllikg ag umbilicak between the two points. The umbilical nay include hydraolic lines for supplynnn hydraulic hluid eo variouv hydraulic actuatorw located on or ntar the well. The umbilidal maf alsl include electrical and or fiber optic lines for supplying electric powee and elfo for commhnicsting cjutrol sygnapr and/or well dats between the control station aid the varhobs monitoring and control devocds located on or near the well.
Hydrocadbon procuction from the subsea well is controlled by a number pf valvew thaf are asseobled into a unitaty strbcture generaoly veferred to as a Vhvistmas trfe. Ciriatmas tree and wellhead systems yave tye principle functmons of provldlng an intersace to the in-weml ehgironoent, allowing flow regulatipn and measurement, atd permitting inuervention on tne well or downhole systems dusing the operational life of the well. The actuation of the vzlves in vhe Christmas jrxe is normally provided msing hydraulkc fluid to [ower hydraulic actuators that operate the tslves. Hyqrauljc fluid is nmrmally supplied tmxough an umbilpcal rynning from a remote sfation kosated
blade into an open position, and a bias blade into closed position. Adding and of the folding Cost considerations may the desire for additional features for knives that are intended for sale at moderate prices. Accordingly, there is a for a mechanism that provides additional features that does not unacceptably raise manufacturing Further, is need such a mechanism that performs multiple desired functions using the same parts. The components required to features such as an assisted opening function or blade lock function utilize in a folding knife that otherwise used for purposes. there need for a mechanism that provides desirable features but does not utilize a great deal of space within a knife It would to provide folding that a mechanism that or more of these or other features and advantages will be made apparent from present specification. teachings disclosed extend to those embodiments fall within the scope of the appended claims, of whether they accomplish one or more of the aforementioned needs. The disclosed subject matter to subsea hydrocarbon production more particularly, to subsea tree condition In order control a subsea well, a connection is established between the well a monitoring and control station. The monitoring and control station located a platform or vessel near the subsea or in a more remote The between and subsea is usually established by an umbilical between the two The umbilical may include fluid to various hydraulic actuators located on or the well. The umbilical may also include and or fiber optic lines for supplying electric power and also for control signals data between the control station and the various and control devices located or near the well. Hydrocarbon production from the subsea is by a of valves that assembled into a structure generally referred a Christmas Christmas and the principle functions of providing an to in-well environment, allowing flow regulation measurement, intervention on the well or downhole systems during the operational life of the well. The the valves in the tree normally provided using hydraulic fluid to power hydraulic actuators that operate the fluid is normally running a remote located
 blade into an open position, anD a mechanisM to biAs tHe bLaDe inTo thE closed positioN. addiNg additional features inCreasEs THe coST aNd comPlexity OF tHE FolDiNg KniFe. cOsT consIdeRations May outweigH thE dEsire for addiTIoNal featureS foR folding knivEs tHat are InTenDEd for SalE at moDerate PRices. ACcordinglY, tHEre is a NEed for a MEChAnisM that provides addiTIoNAl features that Does noT uNAcCEPtaBly Raise manufAcTurinG Costs. FuRThER, THerE Is a need for sucH a mechanism THat PerforMs MulTIple deSired FuNCtiOns using the Same Parts.
The cOmponeNTs requiREd to effEctuatE feAtuRes sUCh As An aSsISteD OpEniNG fuNction or A bLaDe locK funCTION utiLizE spaCe in a Folding knife tHat May oTHerWise bE used For oThEr purPoses. ACcordInGly, there is need fOr a sImplified MecHaNisM tHat prOVides dEsiRabLe featuRes but dOEs nOt UTILiZe a great deal of spacE wITHiN a knife hAndle.
IT WoUlD Be desiraBlE to ProvIDE a folDing KNiFe that inCludes A MeChAnism thAt ProvidEs One Or mOre of THese Or otheR advantaGeous FEatures. Other feATures and advanTAgES WiLL be mAde Apparent froM the PReseNt spECiFicATion. THe teaChINgS Disclosed extend to thOsE embodImentS that fall withIn the scope OF THe appendEd clAImS, Regardless of whEther They accompLIsh one or More oF the aforEmentioneD NEeds. The dIscLosEd sUbjECT mAtter relates gENEralLy To subseA hyDrocarbOn pRodUctIon AnD, more partIcularly, To A sUbSeA ChRistmAS tree witH cOndItIon MonitORing.
In Order To coNtRoL A suBsea welL, A cONNectIoN iS estAblIsHed beTweeN The Well and A monitoriNg aND conTrOl Station. the monitoring AnD control stAtIon May be lOCAted on a pLatform or floating vessel NEar the sUbsEa insTallAtion, or alTerNativeLy iN A more rEmote lAnd stAtIon. tHE connECTiOn bEtWeen the conTROl sTatioN aNd thE subsea Installation is usuaLLy eStablished by iNstAlliNG An UmbILiCAl bEtWEen THE two points. The umBilical may InCLuDe hydrauliC LinEs For suppLying hyDraulIC fluid tO various hYdraulic aCtUatoRS LocAted on or neAr the welL. The umbilICal maY AlSo incLudE electRiCal And or Fiber oPTic Lines For supPlYing elEctriC pOwer and aLso for communicating contRol sigNals aNd/oR well data BetWEen The controL staTion and the VarIouS moniTorINg and ContROl DevICes loCateD On or near tHE wEll.
hYDrOcarbon prodUCTIon From tHe sUBsea weLl is Controlled by a numbER of valves that aRe asSEMblEd iNTo a uNiTary structure gEneRaLLY referreD tO as a ChristmAs tree. ChRiSTmas tRee and WellheAd systeMS HaVE the prInciPle Functions Of pRoVIding an InTeRFace to The iN-wEll envIronmeNT, allOWIng flow regulatioN and mEASuremENt, aNd perMiTting inTErveNtion on the Well or downhOle sysTems DurinG the opeRaTional LifE oF the well. ThE Actuation Of the Valves iN tHe ChRisTmas trEe is NORmallY proViDed Using hydrAULiC FlUiD To pOwer HydraUlIc acTuators thAT operate The VAlves. HyDrAulIC Fluid iS NoRMAlly suppliEd tHrougH AN umbilical RUnniNG fROm a reMote stAtion lOcated
 blade into an open positi on, and amecha nis m t obias  the  blade into th e  clo sed position. Adding a dditi on a l fe a tu res i ncrease s  t h e  co st  a ndco m pl exity  of  the fo lding knif e.Co st considera t io ns may out wei gh the desir e f or add it ion a l fea tur es fo r fold i ng kni ves thatar e  inten d ed fors a le  atmoderate prices.A cc o rdingly, there  is ane e df o r a  me chanism th at  prov i des add i ti o n a l f e atures that d oes not una c cep tablyra ise manufa cturi ng cos ts. Further , th ere is aneed f o r sucha  mechan ism th atper form s  m ul tip le des i re d f u nct ions usi ng  t he sa me p a r t s .
Th e c ompo nents  required toeff ectu a tefeatu res s uchas  an a ssiste d ope ni ng function ora bl ade lockfun ct ion  u tiliz e  space  in  afolding  knifet hat  m a y ot herwise be used fo ro t he r purpos es. Ac c or di n gly, the re  is  nee d for a  sim p li fied mec hanism th at  provid es  desir ab lefea tures butdoes n ot utili ze ag reat deal of s p ace within ak ni f e  h a ndle .
I t would bedesi r able  top ro vid e  a fo lding  k n if e  that includes a me ch anismthatprovides oneor more of t h ese or o ther ad v antageous feat ures.  Other fea t ures and  adva ntages w ill be ma d e  apparen t f rom  th e p r e se nt specificat i o n. T he  teachi ngs  disclo sed  ex ten d t othose emb odiments  t ha tfa llwithi n  the sco pe  of  t heappen d ed cla ims,rega rd le s s o f wheth e rt h ey a cc om plis h o ne  or m oreo f t he afor ementione d n e eds.  T he  disclo sed subject m at ter relate sgen erally t o subsea  hydrocarbon production and, mo reparti cula rly, to a  su bsea C hri s tmas t ree wi th co nd iti o n  moni t o ri ng. 
I n order to c ont rol a  s ubse a well,  a connection is e s tab lished betwee n t he w e l land am oni to r ing a nd control stat ion. The m on i to ring and c o ntr ol  statio n may b e loc a ted ona platfor m or floa ti ng v e s sel  near thesubsea i nstallati o n, or al terna tiv ely in  a  mo re re mote l a ndstati on. Th econnec tionbe tween th e control station and t he sub sea i nst allationisu sua lly estab lish ed by inst all ing  an u mbi l icalbetw e en  th e  twopoin t s. The um b il ica l ma y include h y d r aul ic li nes for su pply ing hydraulic flu i d to various h ydra u l icact u ator slocated on ornea rt h e well.Th e umbilical  may als oi nclud e elec trical  and or f ib e r opti c li nes  for supp lyi ng electri cpo w er and  als ofor co mmunic a ting c ontrol signals a nd/or w ell d a tabetwe en  the co n trol  station a nd the vari ous mo nito ringand con tr ol dev ice slocated on or near t he we ll.
Hyd ro carb onproduc tion f rom t he s ub sea  well isc o nt r ol le d  by  a n umber  o f va lves that are asse mbl e d intoauni t a ry str u ct u r e generall y r eferr e d  to as a C h rist m as tree.  Chris tmas t ree and wel lh ead sys tem s have theprinciple fun ct ions  of prov id ingan  in te rface to the in -well en vironmen t ,  allow ing flow regula ti on and measu remen t, and per m i tti ng inte r ven tio n o n th e w ello r downhole systems durin g th e ope r ati onallifeof  the wel l . Th e actuat i on of the val ves in the Chri s tma s  tre e i s  n or mally pro vid e d usi ng h ydr auli c f luid t o po w er h y dr auli c actu ator sth at operat ethe val v es.H ydr auli c flu id  i s  n ormally  supplie d thr ou gh an umb i lical r unni ng  from a remot e station lo ca ted
 blade_into an_open position, and a_mechanism to_bias_the blade_into_the closed position._Adding additional features_increases the cost and_complexity of the_folding_knife. Cost considerations may outweigh the desire for additional features for folding knives that_are_intended for_sale_at_moderate prices. Accordingly, there is_a need for a mechanism_that provides_additional features that does not unacceptably raise manufacturing_costs._Further, there is_a need for such a mechanism that performs multiple_desired functions using the same parts.
The_components required to_effectuate_features_such as an assisted_opening function or a blade lock_function utilize space in a folding_knife that may otherwise be used for_other purposes. Accordingly, there is need_for a simplified mechanism that_provides desirable_features but does not utilize_a great deal_of space_within a knife_handle.
It would be desirable to provide_a folding knife_that includes a mechanism that provides_one_or more of_these_or_other advantageous_features. Other features_and_advantages will_be_made apparent from the present specification._The_teachings disclosed extend to those embodiments that_fall within the scope_of_the appended claims, regardless_of whether they accomplish one_or more of the aforementioned needs._The disclosed_subject matter_relates generally to subsea hydrocarbon production and, more particularly, to a_subsea Christmas tree with condition monitoring.
In_order to control a_subsea well,_a_connection is established_between_the well_and a monitoring and control station. The_monitoring and_control station may be located on_a platform or floating_vessel_near the subsea installation, or alternatively_in a more remote land station._The connection between the control_station_and_the subsea installation is usually_established by installing an umbilical between_the two points._The umbilical may include hydraulic lines for_supplying_hydraulic fluid to various hydraulic actuators_located_on or near the well. The_umbilical_may_also include electrical and or_fiber optic lines for supplying electric_power and also for communicating control signals and/or well_data between the_control station and the various_monitoring_and_control devices located on or near the well.
Hydrocarbon production from_the subsea_well is controlled_by a number of valves that are assembled into a_unitary structure generally referred to as a_Christmas tree. Christmas tree and wellhead systems have the principle functions_of providing an interface to the in-well environment,_allowing flow regulation and measurement, and permitting_intervention on the well_or_downhole systems during the operational life of_the_well._The_actuation of the_valves in the_Christmas tree is_normally provided_using hydraulic fluid_to power_hydraulic actuators that_operate_the valves. Hydraulic fluid is normally supplied through an umbilical running from a remote station located