NO318536B1 - Well valve and method for simultaneous well production and well injection - Google Patents
Well valve and method for simultaneous well production and well injection Download PDFInfo
- Publication number
- NO318536B1 NO318536B1 NO19991214A NO991214A NO318536B1 NO 318536 B1 NO318536 B1 NO 318536B1 NO 19991214 A NO19991214 A NO 19991214A NO 991214 A NO991214 A NO 991214A NO 318536 B1 NO318536 B1 NO 318536B1
- Authority
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- Norway
- Prior art keywords
- well
- production
- reservoir
- pipe
- well valve
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 41
- 238000002347 injection Methods 0.000 title claims description 34
- 239000007924 injection Substances 0.000 title claims description 34
- 238000000034 method Methods 0.000 title claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 29
- 229930195733 hydrocarbon Natural products 0.000 claims description 24
- 150000002430 hydrocarbons Chemical class 0.000 claims description 24
- 239000012530 fluid Substances 0.000 claims description 19
- 239000004215 Carbon black (E152) Substances 0.000 claims description 8
- 238000005553 drilling Methods 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 5
- 238000012856 packing Methods 0.000 claims description 4
- 239000004568 cement Substances 0.000 claims description 3
- 239000011800 void material Substances 0.000 claims 2
- 238000006243 chemical reaction Methods 0.000 claims 1
- 238000009434 installation Methods 0.000 claims 1
- 230000007246 mechanism Effects 0.000 claims 1
- 239000003208 petroleum Substances 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 230000002547 anomalous effect Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012261 overproduction Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/20—Displacing by water
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
- E21B43/121—Lifting well fluids
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
- E21B33/04—Casing heads; Suspending casings or tubings in well heads
- E21B33/047—Casing heads; Suspending casings or tubings in well heads for plural tubing strings
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
- E21B33/068—Well heads; Setting-up thereof having provision for introducing objects or fluids into, or removing objects from, wells
- E21B33/072—Well heads; Setting-up thereof having provision for introducing objects or fluids into, or removing objects from, wells for cable-operated tools
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/14—Obtaining from a multiple-zone well
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/18—Repressuring or vacuum methods
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Forging (AREA)
- Earth Drilling (AREA)
Description
Foreliggende oppfinnelse angår en brønnventil og en fremgangsmåte for samtidig brønnproduksjon og brønninjeksjon, ifølge kravinnledningene. The present invention relates to a well valve and a method for simultaneous well production and well injection, according to the claims introductions.
Økonomiske forhold og tendenser har tvunget selskaper og teknologer involvert i undersøkelser for produksjon av petroleum til å søke nye fremgangsmåter for kostreduksjon. En slik kostnad er den som oppstår under selve boringen av brønnene gjennom hvilke petroleum blir produsert, eller vann injisert til å opprettholde reservoartrykket som driver petroleum mot overflaten. Fremgangsmåter ifølge tidligere teknikk for utnyttelse av reservoarer krever boring av et antall brønner av hvilke det er to slag. Produksjonsbrønner gjennom hvilke hydrokarboner blir overført til overflaten for senere prosessering, markedsføring og salg, og injeksjonsbrønner gjennom hvilke passende behandlet vann blir tvunget under trykk inn i vannreservoaret som understøtter oljereservoaret, og dermed opprettholde reservoartrykket når petroleum bli fjernet. Produksjonsbrønner blir ofte senere omformet til injeksjonsbrønner når reservoarforholdene endrer seg under utnyttelsen. Economic conditions and trends have forced companies and technologists involved in investigations for the production of petroleum to seek new methods for cost reduction. One such cost is that which occurs during the actual drilling of the wells through which petroleum is produced, or water injected to maintain the reservoir pressure that drives petroleum to the surface. Prior art methods for exploiting reservoirs require drilling a number of wells of which there are two types. Production wells through which hydrocarbons are transferred to the surface for later processing, marketing and sale, and injection wells through which suitably treated water is forced under pressure into the water reservoir that supports the oil reservoir, thereby maintaining reservoir pressure when petroleum is removed. Production wells are often later converted to injection wells when the reservoir conditions change during exploitation.
Viktigheten av å opprettholde reservoartrykket er at det maksimaliserer ytelsen av hydrokarboner. Skulle dette trykke tillates å falle gjennom kortsiktig overproduksjon, kan strømningsmengdene til overflaten bli redusert, og gass vil utvikles fra væskene. Disse gassene er mer mobile enn de tyngre og mer verdifulle hydrokarboner og skal produseres preferensielt til de væsker som kan være igjen i reservoaret. The importance of maintaining reservoir pressure is that it maximizes the performance of hydrocarbons. Should this pressure be allowed to fall through short-term overproduction, flow rates to the surface may be reduced and gas will evolve from the fluids. These gases are more mobile than the heavier and more valuable hydrocarbons and must be produced preferentially for the liquids that may remain in the reservoir.
Det nye trekk ved denne oppfinnelse er vist mot bakgrunnen av dens anvendelse i den detaljerte beskrivelse som følger, og i forbindelse med tegningene, hvor figur 1 viser et oppriss i snitt av en brønn boret gjennom et oljebærende reservoar inn i vannreservoaret umiddelbart nedenfor, figur 2 viser produksjonsinjeksjonskomplettering nede i borehullet, og viser alle de viktige tekniske og geologiske trekk, figur 3 viser brønnventilen og tilhørende utstyr som muliggjør samtidig produksjon og injeksjonsoperasjoner, figur 4 viser utførelsen av utstyr for boreoperasjoner gjennom brønnventilen. The novel feature of this invention is shown against the background of its application in the detailed description which follows, and in connection with the drawings, in which Figure 1 shows an elevation in section of a well drilled through an oil-bearing reservoir into the water reservoir immediately below, Figure 2 shows production injection completion down the borehole, and shows all the important technical and geological features, figure 3 shows the well valve and associated equipment that enables simultaneous production and injection operations, figure 4 shows the execution of equipment for drilling operations through the well valve.
Figur 1 er et oppriss i snitt av en brønn 1 boret gjennom et oljebærende reservoar 2 inn i vannreservoaret 3 umiddelbart nedenfor. Brønnen er vist som avvikende, siden slike produksjonsinjeksbrønner typisk skal søke å maksimalisere avstanden mellom injeksjonsperforeringene og produksjonsperforeringene for å hindre eller minimalisere effekten som er kjent som "koning", et fenomen hvor vann blir tiltrukket til produksjonsperforeringene, og dermed for tidlig å øke vannblandingen i de produserte fluida. Avvik, profil og perforeringsposisjoner skal etableres av reservoaerksperter ved bruk av geologiske og petrofysiske data. Figure 1 is an elevation in section of a well 1 drilled through an oil-bearing reservoir 2 into the water reservoir 3 immediately below. The well is shown as anomalous, since such production injection wells typically seek to maximize the distance between the injection perforations and the production perforations in order to prevent or minimize the effect known as "coning", a phenomenon where water is attracted to the production perforations, thereby prematurely increasing the water mix in the produced fluids. Deviations, profile and perforation positions must be established by reservoir experts using geological and petrophysical data.
Injeksjonsperforeringer 4 tillater inntrenging under trykk av injeksjonsvann inn i vannreservoaret nedenfor petroleumsreservoaret. Produksjonsperforeringene 5 i den oljebærende formasjon tillater innadgående strømning av petroleum inn i det aktive ringrom og opp til brønnventilen. For korthet, viser illustrasjonen en offshoreplattform 6 ved begynnelsen av brønnen. Olje-vannkontakten 7 er grensesnittet mellom hydrokarbonreservoaret og vannreservoaret. Figur 2 viser en produksjonsinjeksjonskomplettering. Injeksjonsrørstrengen 8 strekker seg fra brønnventilen (ikke vist) gjennom pakningen 9 og inn i et område av brønnen i nærheten av injeksjonsperforeringene 4. Pakningen sikrer at injiserte og produserte fluida er isolert fra hverandre. Lengre opp i brønnen er det produksjonsperforeringer 5 gjennom hvilke hydrokarboner entrer det aktive ringform. Plasseringen av både injeksjons- og produksjonsperforeringene skal være avhengig av faktorer som gjelder hver individuell brønn spesielt: lokalisering av olje-vannkontakt 7, avviksvinkel for brønnen, lokalisering av feil og frakturer, gjennomtrengelighet i formasjonen. En foringsrørstreng 10 nede i borehullet strekker seg fra bunnen av brønnen til den posisjon typisk 100-200 m målt lengde ovenfor skoen for overflateforingsrøret. Foringsrørstrengen, som er helt innstøpt i sement 11, har en tettende mottaker 12 plassert ved og festet på sin øvre ende. Inni denne mottaker er det ført en produksjons-plattformrørstreng 13, viss nedre ende er forseglet i mottakeren. Den tettende mottaker kan tillate bevegelse av produksjonsplattformrøret på grunn av varme- og trykkvirkninger mens det opprettholder en fullt funksjonerende tetning. En ringformet sikkerhetsventil 14, om nødvendig installert på overflateforingsrøret 15 ved en posisjon ovenfor nivået av sementen gir beskyttelse for det passive ringrom i hvilket trykk kan endre seg om kombinasjonen av produksjonsplattformrøret og foringsrøret nede i borehullet utvikler en lekkasje. En ringformet sikkerhetsventil 16 sikrer at hydrokarbonproduksjon stopper i tilfelle en nødsituasjon på grunn av dens nærhet til det aktive ringrom. Sikkerhetsventil 17 under overflaten, om nødvendig installert i rørstrengen, stenges også i tilfelle en nødsituasjon, og hindrer injisering av vann inn i vannreservoaret, eller alternativt stopper produksjonen av hydrokarboner fra hydrokarbonreservoaret. Figur 3 viser brønnventil anordningen for en komplettert brønn. Brønnventil blokken 18 har to profiler, nedre og øvre, i hvilke er koplet produksjonsplattformrørhengeren 19 og injeksjonsrørhengeren 20. Hengerne har deres tilhørende pakninger 21 og 22 for å sikre isolasjon av de transporterte fluida. I injeksjonsrørhengeren er det installert en plugg 23 som fjernes i tilfelle overhaling. Kronepluggene 24 er installert i bestemte profiler i den øvre ende av treblokken. Både de øvre og nedre eksterne ender av treblokken har profiler maskineri til å muliggjøre mekanisk forbindelse med hhv en boresikkerhetsventil (BOP) 25 og brønnhodet 26. Ventiler er essensielle elementer i systemet. Mekanisk festet på eller integrert med treblokken, er det ventilblokker 27 og 28 som tillater å styre strøm av produksjonsfluida opp, eller injeksjonsfluida ned, rørhullet, og produksjonsfluida opp det aktive ringrom. Figur 4 viser situasjonen etter at produksjonsplattformforingsrørhengeren er satt inn i brønnventilen nedre rør. En rørbeskytter 29, som fjernes etter komplettering av all boring, beskytter de tettende overflater for senere installerte hengere. Fremgangsmåter ifølge tidligere teknikk har installert brønnhodet og overflateforingsstrenger. Injection perforations 4 allow injection water to enter under pressure into the water reservoir below the petroleum reservoir. The production perforations 5 in the oil-bearing formation allow inward flow of petroleum into the active annulus and up to the well valve. For brevity, the illustration shows an offshore platform 6 at the beginning of the well. The oil-water contact 7 is the interface between the hydrocarbon reservoir and the water reservoir. Figure 2 shows a production injection completion. The injection pipe string 8 extends from the well valve (not shown) through the packing 9 and into an area of the well near the injection perforations 4. The packing ensures that injected and produced fluids are isolated from each other. Further up the well there are production perforations 5 through which hydrocarbons enter the active ring form. The location of both the injection and production perforations must depend on factors that apply to each individual well in particular: location of oil-water contact 7, deviation angle for the well, location of faults and fractures, permeability of the formation. A casing string 10 down in the borehole extends from the bottom of the well to the position typically 100-200 m measured length above the shoe for the surface casing. The casing string, which is completely embedded in cement 11, has a sealing receiver 12 located at and attached to its upper end. A production platform pipe string 13 is routed inside this receiver, the lower end of which is sealed in the receiver. The sealing receiver can allow movement of the production platform pipe due to heat and pressure effects while maintaining a fully functional seal. An annular safety valve 14, if necessary installed on the surface casing 15 at a position above the level of the cement provides protection for the passive annulus in which pressure can change if the combination of the production platform pipe and casing downhole develops a leak. An annular safety valve 16 ensures that hydrocarbon production stops in the event of an emergency due to its proximity to the active annulus. Safety valve 17 below the surface, if necessary installed in the pipe string, is also closed in the event of an emergency, preventing the injection of water into the water reservoir, or alternatively stopping the production of hydrocarbons from the hydrocarbon reservoir. Figure 3 shows the well valve device for a completed well. The well valve block 18 has two profiles, lower and upper, in which the production platform pipe hanger 19 and the injection pipe hanger 20 are connected. The hangers have their associated gaskets 21 and 22 to ensure isolation of the transported fluids. A plug 23 is installed in the injection pipe hanger, which is removed in case of overhaul. The crown plugs 24 are installed in specific profiles at the upper end of the wooden block. Both the upper and lower external ends of the wooden block have profiled machinery to enable mechanical connection with a drilling safety valve (BOP) 25 and the wellhead 26 respectively. Valves are essential elements in the system. Mechanically attached to or integrated with the wooden block, there are valve blocks 27 and 28 which allow to control the flow of production fluid up, or injection fluid down, the pipe hole, and production fluid up the active annulus. Figure 4 shows the situation after the production platform casing hanger has been inserted into the well valve lower pipe. A pipe protector 29, which is removed after completion of all drilling, protects the sealing surfaces for later installed hangers. Prior art methods have installed the wellhead and surface casing strings.
Et eksempel på et foringsprogram til hvilke oppfinnelsen er anvendbar vil det være en overflatestreng på 273 mm x 244,5 mm til omkring 4 000 m målt dybde, en borehullsforing på 177,8 mm fra ca 3 900m til 5 000m målt dybde, og en produksjonsplattform-streng på 193,7 mm. Injeksjonsrøret med 127 mm diameter ville . rekke til ca 4 800 m. Det er sannsynlig at brønnen ville være meget avvikende og at foringsprogrammet ville bli justert til 193,7 mm x 127 mm med pakningen satt umiddelbart ovenfor krysningen. 127 mm-seksjonen ville være røret for injeksjonsfluid fra 127 mm, og brønnen er nå en etthullstype for operasjonsfordeler. Perforeringsprogrammet for høyt avvikende brønner kan kreve at injeksjonsperforeringer blir utført med spolet rør. An example of a casing program to which the invention is applicable would be a surface string of 273 mm x 244.5 mm to about 4,000 m measured depth, a borehole casing of 177.8 mm from about 3,900 m to 5,000 m measured depth, and a production platform string of 193.7 mm. The 127 mm diameter injection pipe would . range to approx. 4,800 m. It is likely that the well would be very deviant and that the casing program would be adjusted to 193.7 mm x 127 mm with the packing placed immediately above the intersection. The 127 mm section would be the pipe for injection fluid from 127 mm, and the well is now a one-hole type for operational advantages. The perforation program for highly deviated wells may require injection perforations to be performed with coiled pipe.
Den foreliggende oppfinnelse frembringer flere fordeler over tidligere teknikk. Det er vanlig praksis at dediserte injeksjonsbrønner bores for å understøtte et hydrokarbonreservoar hvor et passende vannreservoar er til stede. Det er flere eksempler hvor kortsiktig og forhastet produksjon av reservoarer har redusert reservoarets trykk til under brukbarheten, med senere kostbare skritt tatt for å gjenopprette trykket gjennom vanninjeksjon. Denne oppfinnelse, hvis benyttet ved begynnelsen av utviklingsprogrammet, sikrer opprettholdelse av reservoartrykket uten ytterligere borekostnader. Denne oppfinnelse er anvendelig til reservoarer hvor vanninjeksjonen er mulig og ønsket på basis av geologiske og petrofysiske faktorer. For eksempel ville det ved bruk av systemet bare kreves tolv brønner i et tilfelle hvor et feltutviklingsprogram skal dekke tolv produksjonsbrønner og åtte injeksjonsbrønner. Kostnadsbesparelsene i boreprogrammet er i størrelsesorden 40% for et slikt felt. Brønnventilen muliggjør implementering av brønnene, og er uunnværlig for minimalisering av kapital- og operasjonskostnader. The present invention provides several advantages over the prior art. It is common practice for dedicated injection wells to be drilled to support a hydrocarbon reservoir where a suitable water reservoir is present. There are several examples where short-term and hasty production of reservoirs has reduced the reservoir pressure below serviceability, with subsequent costly steps taken to restore pressure through water injection. This invention, if used at the beginning of the development program, ensures the maintenance of the reservoir pressure without additional drilling costs. This invention is applicable to reservoirs where water injection is possible and desired on the basis of geological and petrophysical factors. For example, using the system, only twelve wells would be required in a case where a field development program is to cover twelve production wells and eight injection wells. The cost savings in the drilling program are in the order of 40% for such a field. The well valve enables the implementation of the wells, and is indispensable for minimizing capital and operating costs.
Eksempler på modifikasjoner omfatter blant annet: fjerning av den øvre skulder på brønnventilen og tilkopling av rørhengeren på produksjonsplattformsrørhengeren, deling av treblokken i to separate spoler for hengeutstyr. Det er videre påtenkt: i) at injeksjonsfluidet kan injiseres direkte inn i hydrokarbonreservoaret istedenfor i det støttende vannreservoar i hovedsak når gjennomtrengeligheten av vannreservoarformasjonen er meget lav i forhold til oljereservoarformasjonen, ii) at gassløfteoperasjoner kan påvirkes ved å omfatte passende spindler i produksjonsplattformsrørstrengen, som tillater gass å entre det aktive ringform fra det hittil passive ringrom, og iii) at passende pumper under overflaten som bruker injeksjonsfluid som drivfluid som passerer gjennom vannreservoaret, kunne benyttes for å forbedre produksjon av hydrokarboner. Examples of modifications include: removal of the upper shoulder on the well valve and connection of the pipe hanger to the production platform pipe hanger, splitting the wooden block into two separate coils for hanging equipment. It is further contemplated: i) that the injection fluid can be injected directly into the hydrocarbon reservoir instead of the supporting water reservoir essentially when the permeability of the water reservoir formation is very low in relation to the oil reservoir formation, ii) that gas lift operations can be affected by including suitable spindles in the production platform tubing string, which allows gas to enter the active annulus from the hitherto passive annulus, and iii) that suitable subsurface pumps using injection fluid as drive fluid passing through the water reservoir could be used to enhance production of hydrocarbons.
Claims (20)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/GB1997/001900 WO1999004137A1 (en) | 1997-07-14 | 1997-07-14 | Simultaneous production and water injection well system |
Publications (3)
Publication Number | Publication Date |
---|---|
NO991214D0 NO991214D0 (en) | 1999-03-11 |
NO991214L NO991214L (en) | 1999-05-12 |
NO318536B1 true NO318536B1 (en) | 2005-04-11 |
Family
ID=10806819
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO19991214A NO318536B1 (en) | 1997-07-14 | 1999-03-11 | Well valve and method for simultaneous well production and well injection |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU3550997A (en) |
NO (1) | NO318536B1 (en) |
WO (1) | WO1999004137A1 (en) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE60111372D1 (en) * | 2000-03-24 | 2005-07-14 | Fmc Technologies | TUBING MOUNT WITH ANNULUS DRILLING |
EP1707737A1 (en) * | 2000-03-24 | 2006-10-04 | FMC Technologies, Inc. | Tubing head seal assembly |
US7823648B2 (en) | 2004-10-07 | 2010-11-02 | Bj Services Company, U.S.A. | Downhole safety valve apparatus and method |
US8167046B2 (en) | 2004-12-22 | 2012-05-01 | Baker Hughes Incorporated | Method and apparatus to hydraulically bypass a well tool |
US7913754B2 (en) | 2007-01-12 | 2011-03-29 | Bj Services Company, U.S.A. | Wellhead assembly and method for an injection tubing string |
AU2008206518B2 (en) * | 2007-01-12 | 2011-06-09 | Bj Services Company | Wellhead assembly and method for an injection tubing string |
CA2660219C (en) | 2008-04-10 | 2012-08-28 | Bj Services Company | System and method for thru tubing deepening of gas lift |
US8100181B2 (en) | 2008-05-29 | 2012-01-24 | Weatherford/Lamb, Inc. | Surface controlled subsurface safety valve having integral pack-off |
GB2466514B (en) * | 2008-12-24 | 2012-09-05 | Weatherford France Sas | Wellhead downhole line communication arrangement |
US8479828B2 (en) | 2010-05-13 | 2013-07-09 | Weatherford/Lamb, Inc. | Wellhead control line deployment |
GB2484693A (en) | 2010-10-20 | 2012-04-25 | Camcon Oil Ltd | Fluid injection control device |
US8631875B2 (en) | 2011-06-07 | 2014-01-21 | Baker Hughes Incorporated | Insert gas lift injection assembly for retrofitting string for alternative injection location |
CN103184859B (en) * | 2013-03-18 | 2015-09-09 | 中国石油天然气股份有限公司 | Exploitation device and method for injection and production in same well |
CN103939067B (en) * | 2014-05-19 | 2016-03-09 | 中国石油化工股份有限公司 | A kind of casing patching well layered water filler |
CN106499370A (en) * | 2016-08-22 | 2017-03-15 | 中国石油天然气股份有限公司 | Method and device for calculating liquid production amount of each interval of layered oil production well for synchronous separate injection and separate production of well groups |
NO344391B1 (en) | 2017-04-12 | 2019-11-25 | Aker Solutions As | A wellhead arrangement and installation method |
CN113107367B (en) * | 2021-04-02 | 2023-09-26 | 中石化绿源地热能(陕西)开发有限公司 | Same-well same-layer mining and irrigation well completion method |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2335355A (en) * | 1939-09-11 | 1943-11-30 | Arthur J Penick | Producting equipment for wells |
US3640341A (en) * | 1969-11-06 | 1972-02-08 | Texas Iron Works | Apparatus for completing plural zone oil and gas wells |
US3871456A (en) * | 1971-12-22 | 1975-03-18 | Otis Eng Co | Methods of treating wells |
US5114158A (en) * | 1990-11-19 | 1992-05-19 | Le Tri C | Packing assembly for oilfield equipment and method |
GB2254634A (en) * | 1991-04-12 | 1992-10-14 | Bp Exploration Operating | Multiple concentric bore tubing hanger |
GB2311312B (en) * | 1996-03-19 | 1998-03-04 | Allan Cassells Sharp | Method and apparatus for simultaneous production and injection operations in a single well |
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1997
- 1997-07-14 WO PCT/GB1997/001900 patent/WO1999004137A1/en active Application Filing
- 1997-07-14 AU AU35509/97A patent/AU3550997A/en not_active Abandoned
-
1999
- 1999-03-11 NO NO19991214A patent/NO318536B1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
NO991214D0 (en) | 1999-03-11 |
AU3550997A (en) | 1999-02-10 |
WO1999004137A1 (en) | 1999-01-28 |
NO991214L (en) | 1999-05-12 |
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