WO2008057009A1 - Dispositif à jets de fond de puits - Google Patents
Dispositif à jets de fond de puits Download PDFInfo
- Publication number
- WO2008057009A1 WO2008057009A1 PCT/RU2007/000538 RU2007000538W WO2008057009A1 WO 2008057009 A1 WO2008057009 A1 WO 2008057009A1 RU 2007000538 W RU2007000538 W RU 2007000538W WO 2008057009 A1 WO2008057009 A1 WO 2008057009A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- channel
- medium
- housing
- support sleeve
- well
- Prior art date
Links
- 238000007789 sealing Methods 0.000 claims description 34
- 238000009434 installation Methods 0.000 claims description 22
- 239000000203 mixture Substances 0.000 claims description 17
- 238000011084 recovery Methods 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 7
- 230000002269 spontaneous effect Effects 0.000 abstract description 3
- 238000010348 incorporation Methods 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 description 19
- 239000012530 fluid Substances 0.000 description 10
- 238000005086 pumping Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000004941 influx Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000011435 rock Substances 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
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
- E21B43/121—Lifting well fluids
- E21B43/124—Adaptation of jet-pump systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
- F04F5/46—Arrangements of nozzles
- F04F5/464—Arrangements of nozzles with inversion of the direction of flow
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/54—Installations characterised by use of jet pumps, e.g. combinations of two or more jet pumps of different type
Definitions
- the invention relates. to the field of pumping technology, mainly to downhole pumping units for testing and development of wells. State of the art
- This downhole jet installation allows the formation to be processed in the well below the level of the jet pump installation, including creating a pressure differential above and below the sealing unit.
- the capabilities of a downhole jet installation are not used to the full extent, which is associated with a large investment of time for replacing the inserts, which is often longer than the estimated reaction time of the acid solution with the minerals of the reservoir.
- a downhole jet installation comprising a packer mounted on a pipe string with a central channel and a jet pump, in the housing of which an active nozzle and a mixing chamber with a diffuser are installed, as well as a channel for supplying a working medium and a channel for supplying a medium pumped out from a well, while a switch for a flow of a working medium and a channel for supplying pumped out the well of the medium is connected to the inner cavity of the pipe string below the packer (RU 2222717 Cl).
- This downhole jet installation allows you to switch the flow of the working environment and affect the reservoir by creating depression and repression.
- the used flow switch creates significant hydraulic resistance and occupies the flow section of the pipe string, which does not allow equipment and various purposes to be lowered into the well, for example, measuring instruments, flexible pipes for feeding chemicals or hydraulic fracturing fluids, as well as devices for influencing layer, which narrows the capabilities of this installation.
- the objective of the present invention is to improve the quality of work to increase well production by improving the technology of treating a productive formation with liquid agents, preventing spontaneous overflow of an active working medium when the jet pump stops working and maintaining depression on the formation when the jet pump is not working.
- the technical result achieved by the implementation of the invention is to increase the reliability and productivity of a downhole jet installation during processing of a reservoir and well testing.
- the downhole jet installation includes a packer mounted on the pipe string from bottom to top with a central channel made therein and a jet pump in the housing of which a nozzle and a mixing chamber with a diffuser are installed, while the diffuser has an outlet connected to the inner cavity of the pipe string through a channel for discharging the mixture of media made in the housing of the jet pump, the nozzle of the jet pump from the input side is connected to the annular space of the pipe string, and the channel for supplying the fluid pumped out of the well in the housing of the jet pump is connected to the inner cavity of the pipe string through the upper and lower windows made in the housing of the fluid pump, and a check valve is installed in the channel for supplying the pumped medium, which is located in the latter from the input side through the lower window, in the housing of the jet pump, coaxially with the pipe string, a fluid flow switch is installed, made in the form of an axially movable support sleeve, spring-loaded
- the hydrodynamic effect on the borehole zone of the well allows the most efficient use of the downhole jet unit during the development and repair of oil and gas wells during work to intensify the influx of oil from the reservoir.
- the installation allows cleaning the productive formation from clogging particles and reaction products of the treatment of the formation with chemical reagents, conducting control measurements both before and during the treatment, which in turn allows us to evaluate the technical condition of the well and the properties of the medium pumped out of the well. Based on the results of studying the inflow, it is possible to evaluate the quality of processing the borehole zone of the reservoir.
- the installation with a switch of the working fluid flow in the form of a support sleeve spring-loaded relative to the housing allows processing of the productive formation by pumping chemicals and / or hydraulic fracturing into the formation through a pipe string.
- the supporting sleeve blocks the supply channels of the working and pumped b media, which prevents clogging.
- the implementation of the support sleeve with a seat allows you to install various technological equipment in the sleeve and conduct hydrodynamic processing of the reservoir.
- the downhole installation makes it possible to create a number of different depressions using a jet pump in the sub-packer zone of the well with a given pressure drop, and using a logging tool to record pressure, temperature and other physical parameters of the well and the medium pumped out of the well, and also record the reservoir pressure recovery curve in the under-packer space of the well without using a specially designed functional insert.
- it is possible to control the magnitude of depression by controlling the rate of pumping of the active working medium.
- it is possible to adjust the pumping mode by changing the pressure of the active working medium supplied to the active nozzle of the jet pump.
- the implementation of the inlet channel for the medium pumped out from the well with a non-return valve and two (upper and lower) windows eliminates the possibility of spontaneous overflow of the working medium into the sub-packer zone both with the working and non-working jet pump.
- Figure 1 presents a longitudinal section of a downhole jet unit during the treatment of the formation with chemical reagents or hydraulic fracturing fluid.
- Figure 2 presents a longitudinal section of a downhole jet unit with a sealing unit and a logging tool located in the formation zone.
- Fig.3 shows a longitudinal section of a downhole jet unit during its preparation for the lifting of the logging tool and the sealing unit to the surface.
- the proposed downhole jet installation comprises a packer 2 mounted on a pipe string 1 from bottom to top with a central channel 3 made therein and a jet pump 4, in the housing 5 of which a nozzle 6 and a mixing chamber 7 with a diffuser 8 are installed.
- the diffuser 8 output is connected to the inner cavity of the column pipes 1 through made in the housing 5 of the jet pump 4 channel 9 removal of the mixture of environments.
- the nozzle 6 of the jet pump 4 from the inlet side is connected to the annular space of the pipe string 1.
- the channel 10 for supplying the fluid pumped out of the well in the housing 5 of the jet pump 4 is connected to the inner cavity of the pipe string 1 through the upper 11 and lower windows 12 made in the housing 5 of the fluid pump 4; the non-return valve 13 is installed in the channel 10 for supplying the fluid pumped in the last from the entrance to it through the bottom window 12.
- a switch of the flow of the working medium made in the form of a movable axial the direction of the supporting sleeve 14, spring-loaded relative to the housing 5.
- the supporting sleeve 14 is made with a stop flange 16 located in the bore 15 of the housing 5 with the formation of an annular channel 17 communicating from the upper end side with the annulus between the outer wall of the supporting sleeve 14 and the wall of the bore 15 of the housing 5 wells by means of a channel 30 made in the housing 5 of the jet pump 4.
- the upper 18 and lower 19 bypass holes and a seat 20 are made for installing 1 g of drain pipe through the pipe string a sealing assembly 21 or interchangeable functional inserts (not shown), in particular, inserts for recording the reservoir pressure recovery curves.
- the outlet of the channel 9 for discharging the mixture of media and the channel 10 for supplying the medium pumped out of the well are blocked by the latter, and in the lower position of the support sleeve 14, its upper end is located below the outlet of the channel 9 for removing the mixture of media, while the lower bypass holes 19 of the support the bushings 14 are connected with the entrance to the channel 10 for supplying the medium pumped out of the well.
- the sealing unit 21 is made in the form of a hollow stepped cylindrical body 22, in the upper part of the cavity of which the sealing element 23 is placed, and a lower step 25, spring-loaded relative to the sealing element, is located, with an emphasis in the annular step 24 in the cavity of the housing 22 of the sealing unit 21 23.
- holes 26 are made, which are blocked by a stepped piston 25 when it is in the lower position.
- the channel 10 for supplying the medium pumped out of the well is communicated above the non-return valve 13 from the internal the cavity of the pipe string 1 below the housing 5 of the jet pump 4 and simultaneously the lower bypass holes 19 of the support sleeve 14 are in communication with the lower window 12 of the channel 10 for supplying the medium pumped out of the well.
- axial axial channels are made for passing the wireline cable 27 through it, on which the wireline tool 29 is suspended by means of the cable head 28.
- channels 9 and 10 respectively, of the mixture of mediums and supply the medium pumped out from the well is blocked by the latter, and in the lower position of the support sleeve 14, its upper end is located below the outlet from the channel 9 of the outlet mixture of the media.
- Downhole jet installation operates as follows. On the pipe string 1, the packer 2 and the jet pump 4 are lowered into the well, and the channels 9 and 10 are closed by the support sleeve 14. The packer 2 is unpacked and pressurized by applying a working medium under pressure to the annulus of the well relative to the housing 5 of the jet pump 4. Then, an acid solution and / or hydraulic fracturing pipe are injected through the pipe string 1 into the well formation and lowered through the pipe string 1 into the well on a wireline cable 27, which is passed through the axial channels of the sealing element 23 and the step piston 25 of the sealing unit 21, the wireline tool 29 , which is located in the formation zone, and the sealing the node 21 is installed on the seat 20 in the support sleeve 14.
- Geophysical parameters in particular, pressure and temperature, are recorded in the sub-packer zone, including in the formation zone.
- the working medium is supplied through the annular space of the column 5 of pipes 1 under pressure, through which through the channel 30 to the stop flange 16 the sealing assembly 21 together with the support sleeve 14 are displaced to the lower position, freeing the outlet from the channel 9 for withdrawing the mixture of media and reporting the upper and the lower bypass holes 18 and 19 with the upper and lower windows 11 and 12 of the channel 10 for supplying the medium pumped out of the well.
- the well is drained and reaction products and / or hydraulic fracturing fluid are removed from the reservoir with periodic measurement using
- the logging tool 29 is lifted and the cable head 28 is pressed from below the step piston 25, moved upward and, thus, through the openings 26 in the wall of the housing 22 of the sealing assembly 21, the upper bypass holes 18 in the support sleeve 14 and the upper the window 11 of the channel 10 for supplying the medium pumped out from the well communicates the under-packer space of the well with the internal cavity of the pipe string 1 above the jet pump 4 and the annulus above the packer 2, and, due to this, equalize the pressure above and below with a jet pump 4, after which the logging tool 29 is removed from the well together with the sealing assembly 21.
- any of the interchangeable functional inserts in particular, an insert, can be installed instead of the sealing assembly 21 in the support sleeve 14 for recording curves of reservoir pressure recovery, which allows you to expand the amount of information obtained about the state of the well without lifting the pipe string 1 to the surface, and these studies can be carried out They can be used with or without a jet pump 4.
- the present invention can be used in the oil and gas industry for well development after drilling or for their underground repair in order to intensify hydrocarbon production or increase the injectivity of injection wells.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
La présente invention concerne un dispositif à jets de fond de puits, destiné à l'essai et à la mise en exploitation de puits. Un canal (10) d'amenée du milieu pompé hors du puits est doté d'un clapet de non-retour (13) et de deux fenêtres (11, 12), ce qui permet d'éviter, dans le dispositif selon l'invention, le risque d'écoulement spontané du milieu de travail dans la zone située sous le packer, que la pompe à jet soit ou non en fonctionnement. Le dispositif est doté d'un interrupteur d'écoulement du milieu de travail se présentant sous la forme d'une douille d'appui à ressort mobile (14) doté d'une bride de butée (16) qui forme, conjointement avec un corps (5), le canal (10) communiquant avec l'espace annulaire, lorsque la sortie d'un diffuseur (8) est reliée à la cavité interne d'une colonne de tubage (1), ce qui permet d'augmenter la fiabilité et l'efficacité de fonctionnement du dispositif.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2006139525 | 2006-11-09 | ||
| RU2006139525/06A RU2320900C1 (ru) | 2006-11-09 | 2006-11-09 | Скважинная струйная установка эмпи-угис-(11-20)гд |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2008057009A1 true WO2008057009A1 (fr) | 2008-05-15 |
Family
ID=39364746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/RU2007/000538 WO2008057009A1 (fr) | 2006-11-09 | 2007-10-04 | Dispositif à jets de fond de puits |
Country Status (2)
| Country | Link |
|---|---|
| RU (1) | RU2320900C1 (fr) |
| WO (1) | WO2008057009A1 (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021197568A1 (fr) | 2020-03-30 | 2021-10-07 | Mazaro N.V. | Procédé pour commander une transmission à variation continue et transmission comportant un système de commande pour mettre en œuvre ledit procédé |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4744730A (en) * | 1986-03-27 | 1988-05-17 | Roeder George K | Downhole jet pump with multiple nozzles axially aligned with venturi for producing fluid from boreholes |
| RU2176336C1 (ru) * | 2000-10-30 | 2001-11-27 | Зиновий Дмитриевич Хоминец | Способ работы насосно-эжекторной скважинной установки |
| RU2222717C1 (ru) * | 2002-12-16 | 2004-01-27 | Зиновий Дмитриевич Хоминец | Скважинная струйная установка для знакопеременного гидродинамического воздействия на прискважинную зону пласта |
| US20040071557A1 (en) * | 2001-04-05 | 2004-04-15 | Khomynets Zinoviy Dmitrievich | Well jet device |
-
2006
- 2006-11-09 RU RU2006139525/06A patent/RU2320900C1/ru not_active IP Right Cessation
-
2007
- 2007-10-04 WO PCT/RU2007/000538 patent/WO2008057009A1/fr active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4744730A (en) * | 1986-03-27 | 1988-05-17 | Roeder George K | Downhole jet pump with multiple nozzles axially aligned with venturi for producing fluid from boreholes |
| RU2176336C1 (ru) * | 2000-10-30 | 2001-11-27 | Зиновий Дмитриевич Хоминец | Способ работы насосно-эжекторной скважинной установки |
| US20040071557A1 (en) * | 2001-04-05 | 2004-04-15 | Khomynets Zinoviy Dmitrievich | Well jet device |
| RU2222717C1 (ru) * | 2002-12-16 | 2004-01-27 | Зиновий Дмитриевич Хоминец | Скважинная струйная установка для знакопеременного гидродинамического воздействия на прискважинную зону пласта |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021197568A1 (fr) | 2020-03-30 | 2021-10-07 | Mazaro N.V. | Procédé pour commander une transmission à variation continue et transmission comportant un système de commande pour mettre en œuvre ledit procédé |
Also Published As
| Publication number | Publication date |
|---|---|
| RU2320900C1 (ru) | 2008-03-27 |
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