WO2008066412A1 - Installation à jets de fond de puits destinée à la diagraphie et aux tests de puits horizontaux - Google Patents
Installation à jets de fond de puits destinée à la diagraphie et aux tests de puits horizontaux Download PDFInfo
- Publication number
- WO2008066412A1 WO2008066412A1 PCT/RU2007/000525 RU2007000525W WO2008066412A1 WO 2008066412 A1 WO2008066412 A1 WO 2008066412A1 RU 2007000525 W RU2007000525 W RU 2007000525W WO 2008066412 A1 WO2008066412 A1 WO 2008066412A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- jet pump
- channel
- well
- pipe string
- support sleeve
- Prior art date
Links
- 238000012360 testing method Methods 0.000 title description 9
- 238000007789 sealing Methods 0.000 claims abstract description 37
- 238000009434 installation Methods 0.000 claims description 21
- 239000012530 fluid Substances 0.000 claims description 11
- 238000004891 communication Methods 0.000 claims description 8
- 238000011084 recovery Methods 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 abstract description 14
- 238000005086 pumping Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000002269 spontaneous effect Effects 0.000 abstract description 3
- 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
- 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
- 239000000203 mixture 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
Classifications
-
- 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
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
- E21B49/08—Obtaining fluid samples or testing fluids, in boreholes or wells
- E21B49/087—Well testing, e.g. testing for reservoir productivity or formation parameters
Definitions
- the invention relates to the field of pumping technology, mainly to downhole pumping units for testing and development of wells.
- a downhole jet installation comprising a packer mounted on a pipe string from the bottom to the top 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, and a working medium supply channel and a pumped-out supply channel are made. from the well of the medium, while in the housing of the jet pump a passage channel is made with the possibility of installing replaceable functional inserts and a sealing assembly (RU 2176336 Cl) in it.
- 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 formed therein 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, a channel for supplying a medium pumped out of a well, and a fluid flow switch is installed in the housing of the jet pump, the output of the jet pump is connected to the annular space of the pipe string, the nozzle of the jet pump through the medium supply channel is connected to the internal cavity of the pipe string above the switch and the medium channel for pumping the medium pumped out of the well is connected to the internal cavity of the pipe string below the packer (RU 2222717 C l).
- the task to which the present invention is directed 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 the downhole jet unit during processing of the reservoir and testing the well.
- 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 annular space of the pipe string, the nozzle of the jet pump is connected to the internal cavity of the pipe string through a channel for supplying a working medium in the body of the jet pump, and
- the channel for supplying the medium pumped out from the well is connected to the inner cavity of the pipe string through the upper and lower windows made in the jet pump housing, and a check valve is installed in the channel for supplying the pumped medium, located in the latter from the input side through the lower window, in the
- the pump is mounted coaxially with the pipe string and has a working fluid flow switch made in the form of an axially movable support sleeve spring-loaded relative to the housing, while in the support sle
- 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 and productivity of the well, as well as the properties of the pumped out from a borehole medium. 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 support sleeve blocks the supply channels of the working and pumped media, which prevents them from 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 along the wellbore and the medium pumped out of the well, and also record the recovery curve reservoir pressure 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 check valve and two (upper and lower) windows eliminates the possibility of spontaneous overflow of the working medium into the sub-packer zone when the jet pump is not working.
- 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 on a flexible pipe 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 with a shank 29 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 are installed
- the output of the diffuser 8 is connected to the annulus of the pipe string 1.
- the nozzle 6 of the jet pump 4 is connected to the inner cavity of the pipe string 1 through made in the housing 5 of the jet pump 4 channel 9 for supplying a working medium.
- 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 12 windows made in the housing 5 of the jet pump 4.
- a check valve 13 is installed, which is located in the latter from the entrance to it through the lower window 12.
- a fluid flow switch is installed coaxially to the pipe string 1, made in the form of a support sleeve 14 axially movable , spring-loaded relative to the housing 5.
- the upper 15 and lower 16 bypass holes and a seat 17 are made for installing the sealing assembly 18, which is deflated through the pipe string 1, or interchangeable functional ABOK (not shown), in particular inserts for the registration curves recovery reservoir pressure.
- the channels 9 and 10, respectively, of the supply of the working and pumped medium are blocked by the latter, and in the lower position of the supporting sleeve 14, its upper end is located below the inlet to the channel 9 of the working medium.
- the lower bypass holes 16 of the support sleeve 14 are in communication with the entrance to the channel 10 for supplying the medium pumped out of the well.
- the sealing assembly 18 is made in the form of a hollow stepped cylindrical body 19, in the upper part of the cavity of which a sealing element 20 is placed, and a lower piston 22 spring-loaded relative to the sealing element is located, with emphasis in an annular ledge 21 in the cavity of the housing 19 of the sealing assembly 18 20.
- the upper bypass holes 15 in the support sleeve 14 and the upper window 11 in the housing 5 of the jet pump 4 channel 10 for supplying the medium pumped out of the well is communicated above the check valve 13 with the internal cavity of the pipe string 1 below the housing 5 of the jet pump 4 and at the same time the lower bypass holes 16 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.
- axially axial channels are made for passing a flexible pipe 24 through which a wireline 25 is passed through.
- a complex wireline tool 26 is attached to the lower end of the flexible tube 24, which is connected to the wireline 25 through a cable head 27.
- holes 28 are made, by means of which the internal cavity of the pipe string 1 is in communication with the annular under-well space of the well.
- Downhole jet installation operates as follows. On the pipe string 1 with a liner 29, 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 crimped by applying a working medium under pressure to the annular space relative to the housing 5 of the jet pump 4. wells. Then, an acid solution and / or fracturing fluid are pumped through the pipe string 1 into the reservoir wells and run down the pipe string 1 into the well on a flexible pipe 24, which is passed through the axial channels of the sealing element 20 and the step piston 22 of the sealing assembly 18, a complex logging tool 26 connected through a cable head 27 to the logging cable 25.
- the complex logging device 26 is lowered in a horizontal well until the device reaches the bottom of the well, and the sealing unit 18 is installed on the seat 17 in the supporting sleeve 14.
- a complex logging device 26 is recorded geo Physically parameters, particularly pressure and temperature, in the area below the packer, including a formation zone.
- the working medium is fed through the pipe string 1 under pressure, under the influence of which the support sleeve 14 is displaced to the sealing assembly 18 to the lower position, freeing the entrance to the working medium supply channel 9, to the nozzle 6 and communicating the upper and lower bypass openings 15 and 16 s the upper and lower windows 11 and 12 of the channel 10 for supplying the medium pumped out from the well.
- the well By supplying the working medium under pressure through the channel 9 for supplying the working medium to the nozzle 6 of the jet pump 4, the well is drained and reaction products and / or hydraulic fracturing fluid are removed from the reservoir with periodic measurement using a logging device 26 well flow rates at different depressions on the reservoir and continuous registration of bottomhole pressure, as well as the composition of the liquid medium pumped from the wellbore.
- any of interchangeable functional inserts in particular, an insert for recording the reservoir pressure recovery curves, which allows you to expand the amount of information received about the state of the well without lifting the pipe string 1 to the surface.
- 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.
Abstract
L'invention concerne des équipements de pompage et peut s'utiliser dans l'industrie d'extraction de gaz et de pétrole lors du développement de puits après forage ou lors de la réparation de puits. L'installation à jets de fond de puits comprend un corps (5) dans lequel on a monté un commutateur de flux de milieu de travail. Le commutateur de flux de milieu de travail se présente comme une douille d'appui précontraint par ressort (14) comprenant des orifices de dérivation (15, 16) et un siège destiné à accueillir un ensemble d'étanchéité (18) qui se présente comme un piston (22) et un corps (19) étagés ou comme des inserts fonctionnels amovibles; dans le canal (10) d'amenée de milieu évacué on a monté une soupape anti-retour (13). Cette position du commutateur de flux de milieu de travail améliore la fiabilité de fonctionnement et augmente le rendement de l'installation lors du traitement de la couche productrice; en outre, elle permet d'éviter l'écoulement spontané du milieu de travail actif en cas de cessation de fonctionnement de la pompe à jets et de maintenir la dépression sur la couche lors du non-fonctionnement de la pompe à jets.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2006142064/06A RU2324843C1 (ru) | 2006-11-29 | 2006-11-29 | Скважинная струйная установка эмпи-угис-(1-10)кд для каротажа и испытания горизонтальных скважин |
| RU2006142064 | 2006-11-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2008066412A1 true WO2008066412A1 (fr) | 2008-06-05 |
Family
ID=39468117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/RU2007/000525 WO2008066412A1 (fr) | 2006-11-29 | 2007-10-01 | Installation à jets de fond de puits destinée à la diagraphie et aux tests de puits horizontaux |
Country Status (2)
| Country | Link |
|---|---|
| RU (1) | RU2324843C1 (fr) |
| WO (1) | WO2008066412A1 (fr) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101307680B (zh) * | 2008-06-03 | 2012-04-25 | 潍坊盛德石油机械制造有限公司 | 螺杆钻具用旁通阀 |
| RU2372530C1 (ru) * | 2008-06-25 | 2009-11-10 | Зиновий Дмитриевич Хоминец | Скважинная струйная установка для каротажа и освоения горизонтальных скважин с аномально низкими пластовыми давлениями |
| EA038450B1 (ru) * | 2019-04-01 | 2021-08-30 | Салават Анатольевич Кузяев | Способ исследования горизонтальных и наклонно-направленных скважин (варианты) и устройство для его осуществления |
| CN110454148B (zh) * | 2019-08-07 | 2022-03-29 | 中国石油集团川庆钻探工程有限公司 | 带循环通道的连续油管测井仪器 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| WO2005059369A1 (fr) * | 2003-12-19 | 2005-06-30 | Zinoviy Dmitrievich Khomynets | Installation de puits destinee a fonctionner dans des puits horizontaux et procede de fonctionnement correspondant |
| RU2256103C1 (ru) * | 2004-05-27 | 2005-07-10 | Зиновий Дмитриевич Хоминец | Способ работы эжекторного многофункционального пластоиспытателя для горизонтальных скважин |
-
2006
- 2006-11-29 RU RU2006142064/06A patent/RU2324843C1/ru not_active IP Right Cessation
-
2007
- 2007-10-01 WO PCT/RU2007/000525 patent/WO2008066412A1/fr active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| WO2005059369A1 (fr) * | 2003-12-19 | 2005-06-30 | Zinoviy Dmitrievich Khomynets | Installation de puits destinee a fonctionner dans des puits horizontaux et procede de fonctionnement correspondant |
| RU2256103C1 (ru) * | 2004-05-27 | 2005-07-10 | Зиновий Дмитриевич Хоминец | Способ работы эжекторного многофункционального пластоиспытателя для горизонтальных скважин |
Also Published As
| Publication number | Publication date |
|---|---|
| RU2324843C1 (ru) | 2008-05-20 |
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