EP2877683A1 - System and method for fracturing of oil and gas wells - Google Patents
System and method for fracturing of oil and gas wellsInfo
- Publication number
- EP2877683A1 EP2877683A1 EP13766030.4A EP13766030A EP2877683A1 EP 2877683 A1 EP2877683 A1 EP 2877683A1 EP 13766030 A EP13766030 A EP 13766030A EP 2877683 A1 EP2877683 A1 EP 2877683A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- base pipe
- port
- sleeve
- void
- sliding sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 25
- 239000011800 void material Substances 0.000 claims abstract description 30
- 238000004519 manufacturing process Methods 0.000 claims description 19
- 239000012530 fluid Substances 0.000 claims description 3
- 230000000063 preceeding effect Effects 0.000 claims 1
- 206010017076 Fracture Diseases 0.000 description 9
- 239000007789 gas Substances 0.000 description 7
- 208000010392 Bone Fractures Diseases 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 208000006670 Multiple fractures Diseases 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/14—Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
- E21B34/142—Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools unsupported or free-falling elements, e.g. balls, plugs, darts or pistons
-
- 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
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
Definitions
- This disclosure relates to a fracturing system and method for acquiring oil and gas.
- proppant fracturing usually involves multiple steps and requires several tools in order to be performed successfully.
- Such practice that will allow even distribution of proppant between fractures highly depends on setting, plugs between the fracture stages or using frack balls of increasing sizes, hi these methods, plugs are either set after each fracture has been perforated and pumped, or frack balls are dropped from the surface to successively open fracturing valves placed along the well.
- plugs are either set after each fracture has been perforated and pumped, or frack balls are dropped from the surface to successively open fracturing valves placed along the well.
- balls of different diameters are dropped into the well corresponding to a specific fracturing valve's seat.
- the ball will no longer pass through due to a decrease in well diameter.
- fracking can take place.
- the plugs must be drilled out and the balls must be recovered.
- the system can comprise a base pipe comprising an insert port capable of housing a stop ball partially witliin the chamber of it, and a sliding sleeve.
- the sliding sleeve can comprise a first sleeve with an in inner surface. That inner surface can comprise a void.
- the first sleeve can be maneuverable into two positions. In the first position, the void can rest on a surface of the base pipe not comprising an insert port. Such positioning can prevent a stop ball from exiting the chamber of the base pipe. In the second position, the void can rest over the insert port. Such positioning can allow the stop ball to the chamber of said base pipe and to enter the void.
- the method can comprise connecting a base pipe within a pipe string.
- the base pipe can comprise an insert port capable of housing a stop ball, with the stop ball partially within the chamber of the base pipe.
- the method can also include the step of actuating a sliding sleeve from a first position to a second position.
- the sliding sleeve can comprise a first sleeve that has an in inner surface with a void. In the first position, the void can rest on a surface of said base pipe not comprising said insert port, preventing said stop ball from exiting the chamber of said base pipe. In the second position, the void can rest over the insert port. Such positioning can allow the stop ball to exit the chamber of said base pipe, to enter said void.
- Figure 1A illustrates a side view of a base pipe.
- Figure IB illustrates a front view of a base pipe.
- Figure 1C illustrates a cross sectional view of a base pipe.
- Figure 2 A illustrates a sliding sleeve
- Figure 2B illustrates a front view of a sliding sleeve.
- Figure 2C illustrates a cross sectional view of a sliding sleeve.
- Figure 2D illustrates a cross sectional view of a sliding sleeve that further comprises a fixed sleeve, and an actuator.
- Figure 3A illustrates a peripheral view of outer ring.
- Figure 3B illustrates a front view of an outer ring.
- Figure 4A illustrates a valve casing
- Figure 4B illustrates a tracking port of a valve casing
- Figure 4C illustrates a production slot of a valve casing.
- Figure 5 illustrates a fracturing valve at a fracturing state.
- Figure 6 illustrates an impedance device in between fracking port,
- Figure 7 illustrates fracturing valve at production state.
- FIG. 1A illustrates a side view of a base pipe 100.
- Base pipe 100 can be connected as a portion of a pipe string.
- base pipe 100 can be a cylindrical material that can comprise different wall openings and/or slots.
- Base pipe 100 wall openings can comprise insert port 101, fracking port 102, and/or production port 103.
- Insert port 101 can be made of one or more small openings in a base pipe 100.
- Fracking port 102 can also be made of one or more openings.
- production port 103 can be a plurality of openings in base pipe 100.
- Figure IB illustrates a front view of base pipe 100 further comprising a chamber 104.
- Chamber 104 can be a cylindrical opening or a space created inside base pipe 100.
- As such chamber 104 can be an opening that can allow material, such as frack fluid or hydrocarbons to pass through.
- Figure 1C illustrates a cross sectional view of a base pipe 100. Each wall opening discussed above can be circularly placed around base pipe 100.
- FIG. 2A illustrates a sliding sleeve 200 connected to a fixed sleeve 205 by an actuator 206, and in line with an outer ring 207.
- sliding sleeve 200 can be a cylindrical tube that can comprise fracking port 102.
- fracking port can have a first portion within base pipe 101 and a second portion within sliding sleeve 200.
- Figure 2B illustrates a front view of a sliding sleeve 200 further comprising an outer chamber 201.
- outer chamber 201 can be an opening larger than chamber 104. As such chamber 201 can be large enough to house base pipe 100.
- FIG. 2C illustrates a cross sectional view of a sliding sleeve 200.
- Sliding sleeve 200 can comprise a first sleeve 202 and a second sleeve 203.
- First sleeve 202 and second sleeve 203 can be attached through one or more curved sheet 204, the spaces between each curved sheet 204 defining a portion of fracking port 102.
- Inner surface of first sleeve 202 can have a bottleneck void, or any other void within the inner surface.
- the void can extend radially around the complete inner diameter of base pipe 101, partially around the inner diameter, or locally. If completely around the inner diameter, the ends of inner surface can have a smaller diameter than the void.
- Figure 2D illustrates a cross sectional view of a sliding sleeve 200 farther comprising fixed sleeve 205, and actuator 206.
- actuator 206 can be a biasing device.
- biasing device can be a spring.
- actuator can be bidirectional and/or motorized.
- second sleeve 203 of sliding sleeve 200 can be attached to fixed sleeve 205 using actuator 206.
- sliding sleeve 200 can be pulled towards fixed sleeve 205, thus compressing or otherwise load actuator 206 with potential energy. Later actuator 206 can be released or otherwise instigated, pushing sliding sleeve 200 away from fixed sleeve 205.
- Figure 3 A illustrates a peripheral view of outer ring 207.
- outer ring 207 can be a solid cylindrical tube forming a ring chamber 301, as seen in figure 3B.
- outer ring 207 can be an enclosed solid material forming a cylindrical shape.
- Ring chamber 301 can be the space formed inside outer ring 207. Further, ring chamber 301 can be large enough to slide over base pipe 100.
- valve casing 400 can be a cylindrical material, which can comprise fracking port 102, and production port 103.
- fracking port 102 can be a plurality of openings circularly placed around valve casing 400, as seen in Figure 4B.
- production port 103 can be one or more openings placed around valve casing 400, as seen in Figure 4C.
- Figure 5 illustrates a fracturing valve 500 in fracturing mode.
- fracturing valve 500 can comprise base pipe 100, sliding sleeve 200, outer ring 207, and/or valve casing 400.
- base pipe 100 can be an innermost layer of fracturing valve 500.
- a middle layer around base pipe 100 can comprise outer ring 207 fixed to base pipe 100 and sliding sleeve 200, wherein fixed sleeve 205 is fixed to base pipe 100.
- Fracturing valve 500 can comprise valve casing 400 as an outer later.
- Valve casing 400 can, in one embodiment, connect to outer ring 207 and fixed sleeve 205. In a fracking position, fracking port 102 can be aligned and open, due to the relative position of base pipe 100 and sliding sleeve 200.
- Fracturing valve 500 can further comprise a frack ball 501, and one or more stop balls 502.
- stop ball 502 can rest in insert port 101.
- actuator 206 can be in a closed state, pushing stop ball 502 partially into chamber 104.
- frack ball 501 can be released from the surface and down the well.
- Frack ball 501 will be halted at insert port 101 by any protouding stop balls 502 while fracturing valve 500 is in a fracturing mode.
- the protruding portion of stop ball 502 can halt frack ball 501.
- fracking port 102 will be open, allowing flow of proppant from chamber 104 through fracking port 102 and into a formation, thereby allowing fracturing to take place.
- Figure 6 illustrates one example of an impedance device counteracting actuator 206, in an embodiment where actuator 206 is a biasing device, such as spring.
- an erosion device in the form of a string 601 can be an impedance device.
- String 601 can connect sliding sleeve 200 with base pipe 100. While intact, string can prevent actuator 206 from releasing. Once the string is broken, broken, actuator 206 can push sliding sleeve 601.
- One method of breaking string 601 is by pushing a corrosive material reactive with string through tracking port, deteriorating string 601 until actuator 206 can overcome its impedance.
- Figure 7 illustrates fracturing valve 500 in production mode.
- fracking port 102 can close and production port 103 can open.
- frack ball 501 can push stop balls 502 back into the inner end of first sleeve 202 which can further allow frack ball 501 to slide through base pipe 101, to another fracturing valve 500.
- production port 103 is opened, extraction of oil and gas can start.
- production ports can have a check valve to allow fracking to continue downstream without pushing frack fluid through the production port.
Landscapes
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
- Check Valves (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
- Earth Drilling (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
Description
Claims
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/EP2013/069578 WO2015039698A1 (en) | 2013-09-20 | 2013-09-20 | System and method for fracturing of oil and gas wells |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2877683A1 true EP2877683A1 (en) | 2015-06-03 |
EP2877683B1 EP2877683B1 (en) | 2019-09-04 |
Family
ID=49230747
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13766030.4A Not-in-force EP2877683B1 (en) | 2013-09-20 | 2013-09-20 | System and method for fracturing of oil and gas wells |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP2877683B1 (en) |
CN (1) | CN104854301B (en) |
AU (2) | AU2013394347A1 (en) |
BR (1) | BR112015011565B1 (en) |
CA (1) | CA2886434C (en) |
EA (1) | EA029721B1 (en) |
MX (1) | MX2015000912A (en) |
WO (1) | WO2015039698A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10260314B2 (en) | 2016-06-23 | 2019-04-16 | Vertice Oil Tools | Methods and systems for a pin point frac sleeves system |
US10400555B2 (en) | 2017-09-07 | 2019-09-03 | Vertice Oil Tools | Methods and systems for controlling substances flowing through in an inner diameter of a tool |
CA2994290C (en) | 2017-11-06 | 2024-01-23 | Entech Solution As | Method and stimulation sleeve for well completion in a subterranean wellbore |
CN113653464B (en) * | 2020-05-12 | 2023-10-31 | 中国石油化工股份有限公司 | Acidizing string for horizontal well and acidizing method |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU738367B3 (en) * | 2001-05-23 | 2001-09-13 | Industrial Innovations & Concepts Pty Ltd | Inner core barrel head assembly |
US7021389B2 (en) * | 2003-02-24 | 2006-04-04 | Bj Services Company | Bi-directional ball seat system and method |
CA2760107C (en) * | 2009-05-07 | 2017-07-04 | Packers Plus Energy Services Inc. | Sliding sleeve sub and method and apparatus for wellbore fluid treatment |
US8714272B2 (en) * | 2009-11-06 | 2014-05-06 | Weatherford/Lamb, Inc. | Cluster opening sleeves for wellbore |
CN201650256U (en) * | 2010-05-12 | 2010-11-24 | 中国石油集团西部钻探工程有限公司克拉玛依钻井工艺研究院 | Ball seat type cracking slide sleeve |
CN102392618B (en) * | 2011-11-29 | 2014-10-01 | 中国石油集团长城钻探工程有限公司 | Pressure difference opening self-locking sliding sleeve |
CN103132969B (en) * | 2011-12-05 | 2016-01-06 | 中国石油化工股份有限公司 | Oil well staged fracturing sliding sleeve and device thereof and using method |
CN202483513U (en) * | 2011-12-16 | 2012-10-10 | 中国石油天然气股份有限公司 | Sliding sleeve for layered reconstruction |
US9353598B2 (en) * | 2012-05-09 | 2016-05-31 | Utex Industries, Inc. | Seat assembly with counter for isolating fracture zones in a well |
CN202810819U (en) * | 2012-09-06 | 2013-03-20 | 中国石油化工股份有限公司 | Fracturing slide bushing |
CN202914064U (en) * | 2012-11-16 | 2013-05-01 | 西安鼎盛石油科技有限责任公司 | Ball injection sliding sleeve applied to oil-gas well staged fracturing selective switch |
-
2013
- 2013-09-20 AU AU2013394347A patent/AU2013394347A1/en not_active Abandoned
- 2013-09-20 WO PCT/EP2013/069578 patent/WO2015039698A1/en active Application Filing
- 2013-09-20 CA CA2886434A patent/CA2886434C/en active Active
- 2013-09-20 EP EP13766030.4A patent/EP2877683B1/en not_active Not-in-force
- 2013-09-20 EA EA201590099A patent/EA029721B1/en unknown
- 2013-09-20 CN CN201380065690.2A patent/CN104854301B/en active Active
- 2013-09-20 MX MX2015000912A patent/MX2015000912A/en unknown
- 2013-09-20 BR BR112015011565-9A patent/BR112015011565B1/en active IP Right Grant
-
2017
- 2017-09-20 AU AU2017232094A patent/AU2017232094B2/en active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2015039698A1 * |
Also Published As
Publication number | Publication date |
---|---|
AU2017232094A1 (en) | 2017-10-12 |
EA201590099A1 (en) | 2015-09-30 |
BR112015011565B1 (en) | 2021-12-07 |
EA029721B1 (en) | 2018-05-31 |
MX2015000912A (en) | 2015-10-29 |
CA2886434A1 (en) | 2015-03-26 |
CN104854301A (en) | 2015-08-19 |
EP2877683B1 (en) | 2019-09-04 |
BR112015011565A2 (en) | 2017-07-11 |
AU2013394347A1 (en) | 2015-04-09 |
WO2015039698A1 (en) | 2015-03-26 |
CA2886434C (en) | 2017-02-14 |
CN104854301B (en) | 2018-09-25 |
AU2017232094B2 (en) | 2020-01-02 |
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