WO1999004137A1 - Simultaneous production and water injection well system - Google Patents
Simultaneous production and water injection well system Download PDFInfo
- Publication number
- WO1999004137A1 WO1999004137A1 PCT/GB1997/001900 GB9701900W WO9904137A1 WO 1999004137 A1 WO1999004137 A1 WO 1999004137A1 GB 9701900 W GB9701900 W GB 9701900W WO 9904137 A1 WO9904137 A1 WO 9904137A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- xmas tree
- reservoir
- tubing
- production
- hydrocarbons
- Prior art date
Links
- 238000002347 injection Methods 0.000 title claims abstract description 34
- 239000007924 injection Substances 0.000 title claims abstract description 34
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 20
- 229930195733 hydrocarbon Natural products 0.000 claims abstract description 26
- 150000002430 hydrocarbons Chemical class 0.000 claims abstract description 26
- 239000012530 fluid Substances 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 16
- 239000004215 Carbon black (E152) Substances 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 claims abstract description 7
- 238000005553 drilling Methods 0.000 claims description 7
- 210000001364 upper extremity Anatomy 0.000 claims 2
- 239000011800 void material Substances 0.000 claims 2
- 238000006243 chemical reaction Methods 0.000 claims 1
- 238000011065 in-situ storage Methods 0.000 claims 1
- 230000007246 mechanism Effects 0.000 claims 1
- 239000003208 petroleum Substances 0.000 abstract description 8
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 208000001491 myopia Diseases 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 1
- 238000012423 maintenance Methods 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
- 230000035899 viability Effects 0.000 description 1
Classifications
-
- 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
Definitions
- the present invention relates to the simultaneous injection of water into an aquifer beneath an oil reservoir and the production of fluids therefrom through one single drilled borehole completed with casing and tubing.
- Figure 1 depicts a sectional elevation of a well drilled through an oil-bearing reservoir into the aquifer immediately beneath.
- Figure 2 depicts a producer-injector downhole completion highlighting all principal technical and geological features.
- Figure 3 depicts the Xmas tree and associated equipment which enables simultaneous production and injection operations.
- Figure 4 depicts the configuration of equipment for drilling operations through the Xmas tree.
- Figure 1 is a sectional elevation of a well 1 drilled through an oil-bearing reservoir 2 into the aquifer 3 immediately beneath.
- the well has been shown as deviated as such producer-injector wells shall typically seek to maximise the distance between the injection perforations and production perforations to prevent or minimise the effect known as "coning", a phenomenon where water is attracted to production perforations thereby permaturely increasing the water cut of produced fluids.
- the deviation, profile, and perforation positions shall be established by reservoir experts using geological and petrophysical data.
- Injection perforations 4 allow ingress under applied pressure of injection water into the aquifer beneath the petroleum reservoir.
- Production perforations 5 in the oil-bearing formation permit inward flow of petroleum into the active annulus and up to the Xmas tree.
- the illustration depicts an offshore platform 6 as the origin of the well.
- the oil-water contact 7 is the interface between the hydrocarbon reservoir and the aquifer.
- Figure 2 is a depiction of a producer-injector completion.
- Injection tubing string 8 extends from the Xmas tree (not shown) through packer 9 into the area of the well in the proximity of the injection perforations 4.
- the packer ensures that injected and produced fluids are isolated from each other.
- Further up the well are production perforations 5 through which hydrocarbons enter the active annulus.
- the positions of both injection and production perforations shall be dependant upon factors pertaining to each individual well particularly; location of oil-water contact 7, angle of deviation of well, location of faults and fractures, permeability of formation.
- a downhole liner string 10 extends from the bottom of the well to a position typically 100-200 metres measured length above the shoe of the surface casing.
- the liner string which is fully encased in cement 11, has a sealing receptacle 12 located at, and attached to, its upper end.
- a tieback tubing string 13 the downhole extremity of which seals in the receptacle.
- the sealing receptacle may accommodate movement of tieback tubing due to thermal and pressure effects whilst maintaining a fully functioning seal.
- An annular safety valve 14 installed, if required, in the surface casing 15 at a position above the level of cement provides protection for the passive annulus in which pressure may change should the tieback tubing-downhole liner combination develop a leak.
- Annular safety valve 16 ensures that hydrocarbon production ceases in the event of an emergency because it closes the active annulus.
- Sub-surface safety valve 17 installed, if required, in the tubing string also closes in the event of an emergency and prevents injection of water into the aquifer or, alternatively, halts production of hydrocarbons from a hydrocarbon reservoir.
- FIG. 3 depicts the Xmas tree arrangement for a completed well.
- the Xmas tree block 18 has two profiles, lower and upper, into which are landed production tieback tubing hanger 19 and injection tubing hanger 20 respectively.
- the hangers have their associated seals 21 and 22 to ensure isolation of conveyed fluids.
- a plug 23 which is removed in the event of workover.
- Crown plugs 24 are installed in dedicated profiles in the upper end of the tree block.
- Both the upper and lower external ends of the tree block have profiles machined to enable mechanical connection to a blowout preventer (BOP) 25 and the wellhead 26 respectively.
- Valves are essential elements of the system. Mechanically attached to, or integral to, the tree block are valve blocks 27 and 28 allowing and controlling flow of production fluids up, or injection fluids down, the tubing bore, and production fluids up the active annulus.
- Figure 4 depicts the situation after the production tieback-casing hanger is set in the Xmas tree lower bowl.
- a bowl protector 29 which is removed after completion of all drilling, protects the sealing surfaces for the subsequently installed hangers.
- Prior art methods have installed the wellhead and surface casing strings.
- An example of a casing program to which this invention is applicable would be a surface string of 10-3/4 in. x 9-5/8 in. (273mm x244.5mm)to 13,000 feet (c. 4000 metres) measured depth, a downhole liner of 7 in. (177.8mm) from 12700ft to 17,000ft measured depth (c. 3900 metres to 5000 metres) and a tieback string of 7-5/8 in.(193.7mm).
- the injection tubing of 5 in. diameter (127mm) would run to 16,500ft measured depth (c. 4800 metres). It is probable that the well would be highly deviated and the liner program could be adjusted to 7-5/8 in.
- the 5 in. section would be the conduit for injection fluid from the 5 in.( 127mm) tubing, the well now being of the monobore type for operational advantage.
- the perforation program for a highly deviated well may require the injection perforations to be undertaken by coiled tubing.
- This present invention provides several advantages over the prior art. It is current practice that dedicated injection wells be drilled to support a hydrocarbon reservoir where a suitable aquifer is present. There are several examples where short-sighted and precipitous production of reservoirs has reduced the reservoir pressure below viability with subsequent costly measures taken to re-pressurise through water injection.
- This invention if employed at the outset of a development program, ensures maintenance of reservoir pressure at no additional drilling costs. This invention is applicable to those reservoirs where water injection is feasible and desirable on the basis of geological and petrophysical factors. For example, where a field development program envisaged twelve production wells and eight injection wells would, using the Pl-system, only require twelve wells. The cost savings in the drilling program are in the order of 40% for such a field.
- the Xmas tree enables implementation of Pi-wells, and is indispensable to the minimisation of capital and operating costs.
- injection fluids may be injected directly into the hydrocarbon reservoir instead of the supporting aquifer substantially where the permeability of the aquifer formation is very low relative to that of the reservoir formation
- gas lift operations may be effected by including suitable mandrels in the tieback tubing string allowing gas to enter the active annulus from the hitherto passive annulus, and iii) that suitable sub-surface pumps using the injection fluid as the drive fluid passing through to the aquifer, could be employed to enhance the production of hydrocarbons.
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)
- Earth Drilling (AREA)
- Forging (AREA)
Abstract
Description
Claims
Priority Applications (4)
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 |
AU35509/97A AU3550997A (en) | 1997-07-14 | 1997-07-14 | Simultaneous production and water injection well system |
BR9711293-3A BR9711293A (en) | 1997-07-14 | 1997-07-14 | christmas tree for mechanical adjustment and fixation to a wellhead and process for simultaneous but separate production of hydrocarbons from sectors of a reservoir in a single drilled well and for simultaneous or singular injection of water into the underlying aquifer. |
NO19991214A NO318536B1 (en) | 1997-07-14 | 1999-03-11 | Well valve and method for simultaneous well production and well injection |
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 (1)
Publication Number | Publication Date |
---|---|
WO1999004137A1 true WO1999004137A1 (en) | 1999-01-28 |
Family
ID=10806819
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB1997/001900 WO1999004137A1 (en) | 1997-07-14 | 1997-07-14 | Simultaneous production and water injection well system |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU3550997A (en) |
NO (1) | NO318536B1 (en) |
WO (1) | WO1999004137A1 (en) |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001073257A1 (en) * | 2000-03-24 | 2001-10-04 | Fmc Corporation | Tubing head seal assembly |
EP1336721A2 (en) * | 2000-03-24 | 2003-08-20 | FMC Technologies, Inc. | Tubing head seal assembly |
WO2008089038A1 (en) | 2007-01-12 | 2008-07-24 | Bj Services Company | Wellhead assembly and method for an injection tubing string |
GB2466514A (en) * | 2008-12-24 | 2010-06-30 | Weatherford France Sas | Fluid passage for communication which bypasses a wellhead valve |
US7823648B2 (en) | 2004-10-07 | 2010-11-02 | Bj Services Company, U.S.A. | Downhole safety valve apparatus and method |
US7913754B2 (en) | 2007-01-12 | 2011-03-29 | Bj Services Company, U.S.A. | Wellhead assembly and method for an injection tubing string |
US7954551B2 (en) | 2008-04-10 | 2011-06-07 | Bj Services Company Llc | 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 |
GB2484693A (en) * | 2010-10-20 | 2012-04-25 | Camcon Oil Ltd | Fluid injection control device |
US8167046B2 (en) | 2004-12-22 | 2012-05-01 | Baker Hughes Incorporated | Method and apparatus to hydraulically bypass a well tool |
CN103184859A (en) * | 2013-03-18 | 2013-07-03 | 中国石油天然气股份有限公司 | Exploitation device and method for injection and production in same well |
US8479828B2 (en) | 2010-05-13 | 2013-07-09 | Weatherford/Lamb, Inc. | Wellhead control line deployment |
US8631875B2 (en) | 2011-06-07 | 2014-01-21 | Baker Hughes Incorporated | Insert gas lift injection assembly for retrofitting string for alternative injection location |
CN103939067A (en) * | 2014-05-19 | 2014-07-23 | 中国石油化工股份有限公司 | Separate layer water injection device for casing pipe patching well |
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 |
CN113107367A (en) * | 2021-04-02 | 2021-07-13 | 中石化绿源地热能(陕西)开发有限公司 | Same-well same-layer mining and irrigating well completion method |
US11761291B2 (en) | 2017-04-12 | 2023-09-19 | Aker Solutions As | Wellhead arrangement and method |
Citations (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 |
WO1992008915A1 (en) * | 1990-11-19 | 1992-05-29 | Baroid Technology, Inc. | Packing assembly for oilfield equipment and method |
GB2254634A (en) * | 1991-04-12 | 1992-10-14 | Bp Exploration Operating | Multiple concentric bore tubing hanger |
GB2311312A (en) * | 1996-03-19 | 1997-09-24 | Allan Cassells Sharp | Well system |
-
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
Patent Citations (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 |
WO1992008915A1 (en) * | 1990-11-19 | 1992-05-29 | Baroid Technology, Inc. | Packing assembly for oilfield equipment and method |
GB2254634A (en) * | 1991-04-12 | 1992-10-14 | Bp Exploration Operating | Multiple concentric bore tubing hanger |
GB2311312A (en) * | 1996-03-19 | 1997-09-24 | Allan Cassells Sharp | Well system |
Cited By (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001073257A1 (en) * | 2000-03-24 | 2001-10-04 | Fmc Corporation | Tubing head seal assembly |
US6494257B2 (en) | 2000-03-24 | 2002-12-17 | Fmc Technologies, Inc. | Flow completion system |
EP1336721A2 (en) * | 2000-03-24 | 2003-08-20 | FMC Technologies, Inc. | Tubing head seal assembly |
EP1336721A3 (en) * | 2000-03-24 | 2005-02-23 | FMC Technologies, Inc. | Tubing head seal assembly |
AU2001247784B2 (en) * | 2000-03-24 | 2005-02-24 | 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 |
WO2008089038A1 (en) | 2007-01-12 | 2008-07-24 | Bj Services Company | Wellhead assembly and method for an injection tubing string |
US7913754B2 (en) | 2007-01-12 | 2011-03-29 | Bj Services Company, U.S.A. | Wellhead assembly and method for an injection tubing string |
US7934550B2 (en) | 2007-01-12 | 2011-05-03 | 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 |
US7954551B2 (en) | 2008-04-10 | 2011-06-07 | Bj Services Company Llc | System and method for thru tubing deepening of gas lift |
US9745825B2 (en) | 2008-05-29 | 2017-08-29 | Weatherford Technology Holdings, Llc | Method for deploying subsurface safety valve having integral pack off |
US8312932B2 (en) | 2008-05-29 | 2012-11-20 | Weatherford/Lamb, Inc. | Capillary hanger arrangement for deploying control line in existing wellhead |
US8100181B2 (en) | 2008-05-29 | 2012-01-24 | Weatherford/Lamb, Inc. | Surface controlled subsurface safety valve having integral pack-off |
US8646536B2 (en) | 2008-05-29 | 2014-02-11 | Weatherford/Lamb, Inc. | Capillary hanger arrangement for deploying control line in existing wellhead |
WO2010073116A1 (en) * | 2008-12-24 | 2010-07-01 | Weatherford France Sas | Wellhead downhole line communication arrangement |
GB2466514A (en) * | 2008-12-24 | 2010-06-30 | Weatherford France Sas | Fluid passage for communication which bypasses a wellhead valve |
GB2466514B (en) * | 2008-12-24 | 2012-09-05 | Weatherford France Sas | Wellhead downhole line communication arrangement |
US8925628B2 (en) | 2008-12-24 | 2015-01-06 | Weatherford/Lamb, Inc. | Wellhead downhole line communication arrangement |
US8479828B2 (en) | 2010-05-13 | 2013-07-09 | Weatherford/Lamb, Inc. | Wellhead control line deployment |
US9382775B2 (en) | 2010-05-13 | 2016-07-05 | Weatherford Technology Holdings, Llc | Wellhead control line deployment |
US9267354B2 (en) | 2010-10-20 | 2016-02-23 | Camcon Oil Limited | Fluid injection device |
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 |
CN103184859A (en) * | 2013-03-18 | 2013-07-03 | 中国石油天然气股份有限公司 | Exploitation device and method for injection and production in same well |
CN103939067A (en) * | 2014-05-19 | 2014-07-23 | 中国石油化工股份有限公司 | Separate layer water injection device for casing pipe patching well |
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 |
US11761291B2 (en) | 2017-04-12 | 2023-09-19 | Aker Solutions As | Wellhead arrangement and method |
CN113107367A (en) * | 2021-04-02 | 2021-07-13 | 中石化绿源地热能(陕西)开发有限公司 | Same-well same-layer mining and irrigating well completion 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 |
Also Published As
Publication number | Publication date |
---|---|
NO991214L (en) | 1999-05-12 |
NO318536B1 (en) | 2005-04-11 |
NO991214D0 (en) | 1999-03-11 |
AU3550997A (en) | 1999-02-10 |
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