贝克休斯的关于裸眼封隔器的材料

1、 2000 baker hughes incorporatedall rights reserved.baker oil toolsopenhole packer 2005 baker hughes incorporatedall rights reserved.mpas new era open hole packers 2005 baker hughes incorporatedall rights reserved.mpas new era open hole packer 2005 baker hughes incorporatedall rights reserved.bodyela

2、stomer packing element corekevlar reinforcement braided steel structural layerdeformable back up ringsouter elastomer covermpas packer design 2005 baker hughes incorporatedall rights reserved.mpas open hole packer sequencerun-in positionset positionshifting balance sleeve (initiating setting) 2005 b

3、aker hughes incorporatedall rights reserved.shifting balance sleeve(initiating setting)mpas open hole packer sequencerun-in positionset position 2005 baker hughes incorporatedall rights reserved.mpas open hole packer sequence 2005 baker hughes incorporatedall rights reserved.mpas packer specificatio

4、ns 2005 baker hughes incorporatedall rights reserved.mpas packer specifications 2005 baker hughes incorporatedall rights reserved.mpas packer specifications 2005 baker hughes incorporatedall rights reserved.example installation sequencetd hole, condition mud, poohrun liner assy to depth, correlate,

5、hang, circulate hole volume w/ difset liner top packerpull up inner string, set mpas packerspull above liner top, spot spacers, displace casing w/ brine 2005 baker hughes incorporatedall rights reserved.example installation sequence 2005 baker hughes incorporatedall rights reserved.setting toolssscm

6、aichb-1cup tool 2005 baker hughes incorporatedall rights reserved.location : timor sea, australiaoperator : conocophillipsfield : bayu undandate : 1st well may 2004# wells : 3# mpas packers : 26 (10, 8, 8)max deviation : 62 degreesmax depth : 10,352 ft tvdmax temperature : 270 deg fjob description :

7、 isolation for water shut off one-trip system with selectset collet tool run as an integral part of the inner string. packers set in low-permeability silt stringers to enable future shut-off of water as it ingresses.4.5 hours from td to set and individually test each of packer. multi-zone perforated

8、 pipe case history 2005 baker hughes incorporatedall rights reserved.location : saudi arabiaoperator : aramcofield : zuluf main sanddate : december 2002# wells : 1# mpas packers : 4max deviation : 90 degreesmax depth : 6,500 ft tvdmax temperature : 200 deg fjob description : one-trip system with mai

9、c tool run as an integral part of the inner string. packers used to increase production capabilities of equaliser screen. plt run and isolation proven. equaliser screen case history 2005 baker hughes incorporatedall rights reserved.location : eastern province, saudi arabiaoperator : aramcofield : gh

10、zl-9# wells : 1date : december 2003 # mpas : 2max deviation : 81 degreesmax depth : 13,500 ft tvdmax temperature : 260 deg fjob description : all project objectives were met. deepest ml junction deployment depth to date of 14,082 ft. first fbiv w/ hook hanger and len systems. first mpas instillation

11、 in ml well.multilateral case history 2005 baker hughes incorporatedall rights reserved.nmax temperature270f nmax dogleg severity8/100ft nmax measured depth20,682 ftnmax total vertical depth13,500 ftnmax deviation93.1nmax deviation at packer89.5nmax mud weight10.6ppgmpas installations details 2005 b

12、aker hughes incorporatedall rights reserved.repackernthe water reactive section consists of water absorbing particles incorporated in a field proven nitrile-based polymer. these particles swell via absorbing water which in turn expands the rubber without being physically absorbed into the rubber mat

13、rix which can adversely effect properties nthe oil reactive section utilizes oleophillic polymers that absorb hydrocarbons into the matrix. this process is a physical uptake of the hydrocarbon which swells, lubricates and decreases the mechanical strength of the polymer chain as it expands. 2005 bak

14、er hughes incorporatedall rights reserved.repacker features & benefitsnsimple deployment, requires no running tools nsimple installation, no special personnel requirednno moving parts nrubber bonded to mandrel allows for run in through deviationsnoptimized for maximum expansion while retaining c

15、ritical propertiesnseal self-energizes in annular fluidsncontinues to react with well bore fluids to provide long term annulus isolation 2005 baker hughes incorporatedall rights reserved.aramco 1/5 scale reactive element packer test (oil reactive element) n7” (1.4”) by 8.2” (1.64”) in 8.5” (1.7”) 50

16、00 psin4.5” (0.9”) by 5.8” (1.16”) in 6.125” (1.23”) 5000 psin3.5” (0.7”) by 5.8” (1.16”) in 6.125” (1.23”) 3900 psi note:the packers were not tested to failure.maximum differential pressure exceeds values shown. 2005 baker hughes incorporatedall rights reserved.full scale testingn2-7/8” by 4.2” od

17、9 ft. water-reactive in 4.9” 4,700 psi (63% swell) n4-1/2” by 5-5/8” 9 ft water reactive in 6.3” 3,500 psi (70% swell)n5-1/2” by 7-3/4” 6 ft. oil reactive in 8.9” 1,750 psi (64% swell)nthese test results used to develop math model 2005 baker hughes incorporatedall rights reserved.repacker 4-1/2” by

18、5-5/8” in 6.3” fixture 2005 baker hughes incorporatedall rights reserved.repacker 2-7/8” by 4.2” in 4.9” 2005 baker hughes incorporatedall rights reserved.new products being testedimproved water swell rubber compoundnimproved durometer (75 compared to 50)ngreater maximum swell % (130 compared to 100

19、 wrapped on a mandrel)nbetter/easier bonding characteristics 2005 baker hughes incorporatedall rights reserved.new product waiting on test resultsrcpacker w/ improved water swell rubber compoundnuse 200% swell for swelling elastomer when used in rcpacker elementninflation w/ fresh water or fresh wat

20、er mudntesting w/ new elastomer and improved manufacturing techniques may allow swell greater than 200%rcpackermandrel sizeelement run in od200% swell hole size4-1/25-5/86.85-1/28106-5/88-1/88.96-5/8910.5 2005 baker hughes incorporatedall rights reserved.new products being developedmodular split pac

21、kernwaiting on swell/pressure testneasy to install directly to customers pipe/screensncan be molded by outside vendor to reduce cost and ease manufacturing loadsnwill be available with metal end sleeves and have ability to interlock multiple segmentsnus patent application in place 2005 baker hughes

22、incorporatedall rights reserved.new products being developedslip on packerninstallation tool, procedure under developmentnlength expected 1-3 eachncan be mandrel wrapped by outside vendor to reduce cost and ease manufacturing loadsnmay be available with metal end sleeves 2005 baker hughes incorporat

23、edall rights reserved.wellbore isolation portfolionreactive element (re)optimized for maximum expansion while retaining critical mechanical and chemical propertiesno running tools requiredno specialist requiredself-energizes in water or oil environment (2 separate polymers)element retains seal in hy

24、drocarbon or water environmentshydrocarbon exposure causes no deterioration of critical water-reactive seal element propertiesnreactive element technologyrepackerrebarrierhingedstretch-onrepacker 2005 baker hughes incorporatedall rights reserved.repackercritical operating factors for repackers 2005

25、baker hughes incorporatedall rights reserved.primary factors affecting repacker performance n% swellnswell ratenelement length 2005 baker hughes incorporatedall rights reserved.factors affecting % swell nfluid compositionwater swell elastomernhigher salinity = lower % swellnlower salinity = higher %

26、 swellndivalent salts (cacl2, cabr2, znbr2) = little to no swelloil swell elastomernheavy oil = lower % swellnlight oil = higher % swell 2005 baker hughes incorporatedall rights reserved.salinity vs. % swell 2005 baker hughes incorporatedall rights reserved.factors that affect swell ratentemperature

27、higher temperature = higher swell ratelower temperature = lower swell ratenod of elementelement od increases at similar rateindependent of total rubber volume 2005 baker hughes incorporatedall rights reserved.swell rate vs. temperature 2005 baker hughes incorporatedall rights reserved.swell rate vs.

28、 element od 2005 baker hughes incorporatedall rights reserved.repacker pressure rating affects n% swellless % swell = higher pressure ratingmore % swell = lower pressure ratingntemperaturelower temperature = higher pressure ratinghigher temperature = lower pressure ratingnelement lengthlonger elemen

29、t = higher pressure ratingshorter element = lower pressure rating 2005 baker hughes incorporatedall rights reserved.recent developments (contd)nrepacker fullscale testing4.5” x 5.625” x 10 ft oil-swell in 6” hole tested nheld 10,000 psi for 24 hours 230f (no bypass)4.5” x 5.625” x 10ft water-swell in 6” hole nheld 10,000 psi for 24 hours 230f (no bypass)5.5” x 7.75” x 10ft water-swell in 8.5” hole ntested to 4,500 psi (fixture limit) at 230f4.5” x 5.875” x 25ft oil-swell in 6.250” hole ntested to 10,000 psi at 290