WO2017045131A1 - Colonne tubulaire de régulation d'eau et restricteur automatique de régulation d'écoulement entrant associé, et dispositif de régulation d'écoulement entrant - Google Patents

Colonne tubulaire de régulation d'eau et restricteur automatique de régulation d'écoulement entrant associé, et dispositif de régulation d'écoulement entrant Download PDF

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Publication number
WO2017045131A1
WO2017045131A1 PCT/CN2015/089642 CN2015089642W WO2017045131A1 WO 2017045131 A1 WO2017045131 A1 WO 2017045131A1 CN 2015089642 W CN2015089642 W CN 2015089642W WO 2017045131 A1 WO2017045131 A1 WO 2017045131A1
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WO
WIPO (PCT)
Prior art keywords
inflow control
restrictor
inner cylinder
automatic
water
Prior art date
Application number
PCT/CN2015/089642
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English (en)
Chinese (zh)
Inventor
易会安
易齐尊
王振祥
陈善饮
李伯仁
刘妙仁
孟祥芹
Original Assignee
思达斯易能源技术(集团)有限公司
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by 思达斯易能源技术(集团)有限公司 filed Critical 思达斯易能源技术(集团)有限公司
Priority to CN201580081458.7A priority Critical patent/CN108138557B/zh
Priority to PCT/CN2015/089642 priority patent/WO2017045131A1/fr
Publication of WO2017045131A1 publication Critical patent/WO2017045131A1/fr

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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
    • E21B34/00—Valve arrangements for boreholes or wells
    • E21B34/06—Valve arrangements for boreholes or wells in wells
    • 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
    • E21B34/08—Valve arrangements for boreholes or wells in wells responsive to flow or pressure of the fluid obtained
    • 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

Definitions

  • the invention relates to a horizontal well water control technology for oil and gas fields, in particular to a water control column and an automatic inflow control restrictor and an inflow control device.
  • Horizontal wells have been developed and applied due to their high liquid production, small production pressure difference and low flow resistance. Horizontal wells have the characteristics of unbalanced flow production fluid profiles. With the extension of mining time, this unbalanced flow profile will lead to premature water seepage, reduce well life and affect well productivity.
  • the existing horizontal well water control technology generally adopts the method of first finding water and then controlling water, but this method is carried out under the production state, the construction process is complicated, the technical requirements are high, the process is many, and the operation is difficult. Moreover, the water control methods used are mostly passive water control, and these water control methods will fail in the event of water coning.
  • the technical problem to be solved by the present invention is to provide a water control column and an automatic inflow control restrictor and an inflow control device thereof, which can automatically control the flow rate of the fluid according to the fluid characteristics and balance the inflow profile to realize the above-mentioned defects of the prior art. Simple, easy to operate, active water control, stable oil production.
  • an automatic inflow control current limiter which comprises:
  • the body includes a hollow inner cylinder, an outer cylinder and an upper cover.
  • the inner cylinder and the outer cylinder are coaxially disposed on the upper cover, and a central hole of the inner cylinder is a fluid inflow hole, and an outer circumference of the outer cylinder Threads for connection are provided on the surface;
  • the lower cover is detachably connected to the lower end of the outer cylinder, and is combined with the upper cover and the outer cylinder to form an accommodating space, the inner cylinder is located in the accommodating space, and the lower cover is a fluid outflow hole is provided, and a gap for liquid circulation is provided between an inner surface of the lower cover and a bottom end surface of the inner cylinder;
  • a pontoon disposed in the accommodating space, comprising an end cap and a sleeve connected to each other, the sleeve being movably disposed outside the inner cylinder and freely movable along an axis of the inner cylinder, the end cap being parallel
  • the upper cover is located at an end of the sleeve adjacent to the lower cover.
  • an inflow control device which includes:
  • the central tube is a hollow cylindrical tube
  • An outer sheath comprising an interconnected sleeve and two sets of ends, the outer sheath being fitted over the central tube by the two sets of ends and disposed coaxially with the central tube, the sleeve and the An annular space for liquid circulation between the outer walls of the central tube, the sleeve body comprising a filter portion and a flow restricting portion, the filter body having a filter mechanism disposed thereon;
  • An automatic inflow control restrictor mounted on a pipe wall of the center pipe, the pipe wall of the center pipe corresponding to the The flow restricting portions are staggered with a plurality of mounting holes through which the liquid flowing into the annular space enters the central pipe through the automatic inflow control restrictor, and the automatic inflow control restrictor automatically adjusts the inflow according to the output of the oil and gas well The fluid flow of the central tube.
  • the mounting hole is a threaded hole
  • the automatic inflow control restrictor is connected to the mounting hole through a thread of the outer cylinder, and a sealing structure is disposed on an outer edge of the upper cover .
  • the filter mechanism is a double-layer sand control filter structure
  • the outer layer of the sleeve wall of the filter portion is provided with a sand control filter mesh with a sand filter groove
  • the filter body is inside the sleeve wall
  • the layer is provided with a multi-layer metal fiber dense screen.
  • the present invention also provides a water control column for water control and oil stabilization production of a horizontal well, including:
  • At least one set of inflow control water pipe columns comprising sequentially connected inflow control devices, screens and blind tubes, said inflow control device being coupled to said main column, said inflow control device being in accordance with claims 6-8 above The inflow control device according to any one of the preceding claims.
  • the inflow control water pipe column is a plurality of groups connected in series, and each group of the plurality of sets of the blind pipe flowing into the water control pipe column and the oil well pipe column are provided with an expansion packer.
  • FIG. 1 is a schematic view of a water control column according to an embodiment of the present invention.
  • FIG. 2 is a schematic structural view of an inflow control device according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of an automatic inflow control current limiter according to an embodiment of the present invention.
  • FIG. 1 is a schematic diagram of a water control column according to an embodiment of the present invention.
  • the water control pipe column of the present invention is used for automatic regulating water control and oil stabilization production of horizontal wells, comprising: a main pipe column 1 installed in an oil well pipe string 10 of a horizontal well, the oil well pipe string 10 and the main pipe column
  • An expansion packer 2 is disposed in the annulus of the air; and at least one set of inflow control water pipe columns includes a flow control device 3, a screen 4 and a blind pipe 5 which are sequentially connected, and the inflow control device 3 and the main pipe 1 connection, in this embodiment, the inflow control water pipe column can be set as a plurality of groups connected in sequence according to actual production conditions, and each group of the plurality of groups of the blind pipe 5 flowing into the water control pipe column and the oil well pipe column 10 Both are provided with an expansion packer 2. Since the other components, structures, positional relationships, connection relationships, and functions of the water control column are relatively mature prior art, the details are not described here
  • FIG. 2 is a schematic structural diagram of an inflow control device according to an embodiment of the present invention.
  • the inflow control device 3 of the present invention comprises: a central tube 32 which is a hollow cylindrical tube; an outer sheath 31 comprising an interconnected sleeve body 311 and two sets of ends 312 through which the outer sheath 31 passes a set 312 is fixed to the central tube 32 and disposed coaxially with the central tube 32.
  • the outer sheath 31 can be welded to the central tube 32 through two sets of ends 312, the sleeve 311 and the An annular space 34 for liquid circulation is provided between the outer walls of the central tube 32.
  • the fluid flows through the filtering mechanism 313 on the outer sheath 31 and flows into the annular space 34.
  • the casing 311 includes a filtering portion 314 and a restricting portion 315.
  • the filtering mechanism 313 is disposed on the sleeve wall of the filter portion 314 to form a sand control filter channel of the automatic water control current limiting device.
  • the filter mechanism 313 is preferably a double sand control filter structure.
  • the outer layer of the sleeve wall of the portion 314 is provided with a sand control filter screen with a sand filter groove, and the inner wall of the sleeve portion of the filter portion 314 is provided with a plurality of metal fiber dense mesh screens, which can filter out fine sand particles in the fluid and prevent Sand inflow
  • an automatic inflow control restrictor 33 is mounted on the wall of the central pipe 32, and a plurality of mounting holes are interleaved correspondingly to the restricting portion 315 on the pipe wall of the central pipe 32.
  • the liquid in the annulus 34 enters the central tube 32 through the automatic inflow control restrictor 33, which automatically regulates the flow of fluid into the central tube 32 based on the production of the well.
  • the mounting hole is preferably a threaded hole
  • the automatic inflow control restrictor 33 is connected to the mounting hole through a thread of the outer cylinder 3311, and the outer cover of the upper cover 3313 is provided with a seal.
  • FIG. 3 is a schematic structural diagram of an automatic inflow control current limiter according to an embodiment of the present invention.
  • the Autonomous Inflow Control Device (AICD) of the present invention comprises: a body 331, comprising a hollow inner cylinder 3312, an outer cylinder 3311 and an upper cover 3313, the inner cylinder 3312 and the outer cylinder 3311.
  • the central hole of the inner cylinder 3312 is a fluid inflow hole 335, the outer circumferential surface of the outer cylinder 3311 is provided with a thread for connection; the lower cover 333, and the outer The lower end of the cylinder 3311 is detachably connected, and is combined with the upper cover 3313 and the outer cylinder 3311 to form an accommodating space 336.
  • the inner cylinder 3312 is located in the accommodating space 336.
  • a fluid outflow hole 334 is provided, a gap between the inner surface of the lower cover 333 and the bottom end surface of the inner cylinder 3312 for liquid circulation; and a float 332 disposed in the accommodation space 336, including each other An end cap and a sleeve, the sleeve being movably disposed outside the inner cylinder 3312 and freely movable along an axis of the inner cylinder 3312, the end cap being parallel to the upper cover 3313 and located in the sleeve
  • the tube is close to one end of the lower cover 333
  • the gap is preferably equal to the maximum displacement distance of the pontoon 332, that is, the bottom surface of the end cap of the pontoon 332 is flush with the end surface of the inner cylinder 3312, and the sleeve length of the pontoon 332 is equal to the height of the inner cylinder 3312.
  • a surface of the upper cover 3313 opposite to the outer cylinder 3311 is provided with a tool fixing hole 3314 for mounting or dismounting, and the tool fixing hole 3314 is preferably a countersunk blind hole.
  • the upper cover 3313, the inner cylinder 3312, and the outer cylinder 3311 are preferably integrally formed.
  • the water control software can be used to calculate the number of water control current limiting devices required for a certain interval, and the position and quantity of the screen 4, the blind pipe 5, and the inflow control device 3 are arranged.
  • the installation position and the number of installations of the automatic inflow control restrictor 33 calculated by the water control process software the position and the number of the mounting holes on the center tube 32 are correspondingly set, and the inflow control device 3 is assembled, and then the water control column is installed, that is, the main column is to be 1.
  • the expansion packer 2, the inflow control device 3, the blind tube 5 and the screen tube 4 are connected and lowered into the oil well string 10 to complete the construction of the water control process in an optimized manner.
  • the inflow control device 3 of the present invention is connected to the water control pipe column of the horizontal well, and the fluid in the formation passes through the sand control filter mechanism 313 on the outer outer sheath 31 to filter out the fine sand particles, and the fluid flows into the outer sheath 31 and the center pipe.
  • the inflow hole 335 is provided in the automatic inflow control restrictor 33, and the fluid flows through the inflow hole 335 on the inner cylinder 3312 to
  • the automatic inflow control restrictor 33 has an internal accommodating space 336, and the automatic inflow control restrictor 33 has different control effects on fluids of different densities and different viscosities.
  • the density thereof will cause the float 332 to float, so that the outflow holes 334 on the lower cover 333 are all in the maximum open state, and the fluid flows smoothly; and the water in the mixed fluid causes the float 332 to sink and the lower cover 333 to flow out.
  • the hole 334 is in the minimum open state, and most of the fluid cannot pass smoothly, so the oil with low density and high viscosity flows into the center tube 32 from the outflow hole 334 on the lower cover 333, and is collected to the ground by lifting. .
  • the automatic inflow control restrictor 33 can automatically "open source" the inflow of oil, and “throttle” the inflow of water, thereby functioning to stabilize the oil and control the water.
  • the invention has the advantages of simple structure, good processability, simple and high-efficiency construction, can effectively play the role of sand control, water control and oil stabilization, balance the liquid production profile, realize automatic steady oil control water production, and change the passive water control situation.
  • the water control is changed from passive control to active regulation.
  • the inflow control device filters the fluid through the layer and then flows into the automatic inflow control restrictor, reducing the possibility of sand blockage and solving the horizontal well of the prior art. The problem of bottom water coning and even flooding occurred during the development process.
  • the invention is an active water control mode, and the passive water control is changed into active water control through a simple water control column and a smart inflow control device, and the flow rate of the liquid is automatically controlled according to the viscosity and density of the liquid, thereby realizing the oil. Open source and throttling of water.
  • the beneficial effects are as follows:
  • the automatic inflow control restrictor of the invention is an automatic water control device, and can automatically realize the flow control according to the performance characteristics such as the viscosity and density of the fluid without any power and manual intervention, and the "open source" viscosity is large. a fluid with a low density, a "throttle” fluid having a small viscosity and a high density;
  • the water control pipe column of the invention has a simple structure, is convenient for running in and out, and can control the flow of the production layer, equalize the flow profile and increase the oil production amount by entering the well once;

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  • 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)
  • Filtration Of Liquid (AREA)

Abstract

L'invention concerne une colonne tubulaire de régulation d'eau et un restricteur automatique (33) de régulation d'écoulement entrant associé, et un dispositif (3) de régulation d'écoulement entrant. Ladite colonne tubulaire de régulation d'eau comprend ledit dispositif (3) de régulation d'écoulement entrant. Le dispositif (3) de régulation d'écoulement entrant comprend un tube central (32), un manchon de protection externe (31) et ledit restricteur automatique (33) de régulation d'écoulement entrant. Un espace annulaire (34) utilisé pour permettre au liquide de circuler est formé entre le manchon de protection externe (31) et la paroi extérieure du tube central (32). Le manchon de protection externe (31) comprend une partie filtrante (314) et une partie (315) de restriction d'écoulement. Un mécanisme de filtration (313) est disposé sur la paroi du corps du manchon de la partie filtrante (314). Ledit restricteur automatique (33) de régulation d'écoulement entrant est monté sur la paroi de tube du tube central (32), et comprend un cylindre interne creux (3312), un cylindre externe (3311), un couvercle supérieur (3313), un couvercle inférieur (333) et un flotteur (332) qui sont disposés de manière coaxiale. Un trou central du cylindre interne (3312) est un trou (335) d'écoulement entrant de fluide. Le couvercle inférieur (333) est relié amovible à l'extrémité inférieure du cylindre externe (3311) ; et le couvercle inférieur (333), le couvercle supérieur (3313) et le cylindre externe (3311) forment conjointement un espace de logement (336) de manière à entourer celui-ci. Un trou (334) d'écoulement sortant de fluide est formé dans le couvercle inférieur (333), et un espace utilisé pour permettre au liquide de circuler est formé entre la surface interne du couvercle inférieur (333) et la surface de l'extrémité inférieure du cylindre interne (3312). Le flotteur (332) sert de manchon mobile à l'extérieur du cylindre interne (3312) et peut se déplacer librement le long de l'axe du cylindre interne (3312). Au moyen de la colonne tubulaire de régulation d'eau et du dispositif intelligent de régulation d'écoulement entrant, une régulation d'eau passive est changée en une régulation d'eau active, et le trafic du liquide est régulé automatiquement en fonction de la densité du liquide, ce qui permet de réguler l'eau et de stabiliser l'huile.
PCT/CN2015/089642 2015-09-15 2015-09-15 Colonne tubulaire de régulation d'eau et restricteur automatique de régulation d'écoulement entrant associé, et dispositif de régulation d'écoulement entrant WO2017045131A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201580081458.7A CN108138557B (zh) 2015-09-15 2015-09-15 一种控水管柱及其自动流入控制限流器和流入控制装置
PCT/CN2015/089642 WO2017045131A1 (fr) 2015-09-15 2015-09-15 Colonne tubulaire de régulation d'eau et restricteur automatique de régulation d'écoulement entrant associé, et dispositif de régulation d'écoulement entrant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2015/089642 WO2017045131A1 (fr) 2015-09-15 2015-09-15 Colonne tubulaire de régulation d'eau et restricteur automatique de régulation d'écoulement entrant associé, et dispositif de régulation d'écoulement entrant

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Cited By (7)

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CN111963113A (zh) * 2019-05-20 2020-11-20 思达斯易能源技术(集团) 有限公司 自动流入控制限流器、流入控制装置及控水管柱
CN112443299A (zh) * 2019-08-29 2021-03-05 中国石油化工股份有限公司 一种油井流体自适应装置及流体控制装置
WO2021091557A1 (fr) * 2019-11-07 2021-05-14 Halliburton Energy Services, Inc. Dispositif de régulation de débit entrant autonome basé sur la conductivité
CN113070597A (zh) * 2021-03-10 2021-07-06 山西阳煤化工机械（集团）有限公司 一种夹套式容器的装配方法
CN113494277A (zh) * 2020-03-19 2021-10-12 中国海洋石油集团有限公司 一种水平井精细化分段控水完井结构
CN113622887A (zh) * 2020-05-06 2021-11-09 中国石油化工股份有限公司 一种压裂及智能控水一体化装置
CN113622868A (zh) * 2020-05-06 2021-11-09 中国石油化工股份有限公司 一种具备控水功能的压差式滑套

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CN111663924B (zh) * 2019-03-05 2022-09-27 中国石油化工股份有限公司 一种油井控水增油装置及方法

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CN1632282A (zh) * 2004-12-16 2005-06-29 易会安 一种特殊类型油气藏的孔缝梯级筛管包裹式开采方法
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CN204941488U (zh) * 2015-09-15 2016-01-06 思达斯易能源技术(集团)有限公司 一种控水管柱及其自动流入控制限流器和流入控制装置

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111963113A (zh) * 2019-05-20 2020-11-20 思达斯易能源技术(集团) 有限公司 自动流入控制限流器、流入控制装置及控水管柱
CN111963113B (zh) * 2019-05-20 2024-05-17 思达斯易能源技术(集团)有限公司 自动流入控制限流器、流入控制装置及控水管柱
CN112443299A (zh) * 2019-08-29 2021-03-05 中国石油化工股份有限公司 一种油井流体自适应装置及流体控制装置
WO2021091557A1 (fr) * 2019-11-07 2021-05-14 Halliburton Energy Services, Inc. Dispositif de régulation de débit entrant autonome basé sur la conductivité
CN113494277A (zh) * 2020-03-19 2021-10-12 中国海洋石油集团有限公司 一种水平井精细化分段控水完井结构
CN113622887A (zh) * 2020-05-06 2021-11-09 中国石油化工股份有限公司 一种压裂及智能控水一体化装置
CN113622868A (zh) * 2020-05-06 2021-11-09 中国石油化工股份有限公司 一种具备控水功能的压差式滑套
CN113622887B (zh) * 2020-05-06 2024-02-27 中国石油化工股份有限公司 一种压裂及智能控水一体化装置
CN113070597A (zh) * 2021-03-10 2021-07-06 山西阳煤化工机械（集团）有限公司 一种夹套式容器的装配方法

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CN108138557B (zh) 2020-08-21

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