CN204457607U - A kind of steam injection ball-and-seat - Google Patents

A kind of steam injection ball-and-seat Download PDF

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Publication number
CN204457607U
CN204457607U CN201420847062.1U CN201420847062U CN204457607U CN 204457607 U CN204457607 U CN 204457607U CN 201420847062 U CN201420847062 U CN 201420847062U CN 204457607 U CN204457607 U CN 204457607U
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CN
China
Prior art keywords
steam
steam injection
sealing ring
plate
interior pipe
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.)
Expired - Fee Related
Application number
CN201420847062.1U
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Chinese (zh)
Inventor
于晓聪
姜佳悦
孙振宇
曲绍刚
汪小平
马海峰
王喜泉
张丽娜
陈天然
盛洁
卢丽丝
赵树杰
刘佩衡
杨昕
李红爽
唐丽
吕政�
杨婉玲
闫绪鹏
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China Petroleum and Natural Gas Co Ltd
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China Petroleum and Natural Gas Co Ltd
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.)
Filing date
Publication date
Application filed by China Petroleum and Natural Gas Co Ltd filed Critical China Petroleum and Natural Gas Co Ltd
Priority to CN201420847062.1U priority Critical patent/CN204457607U/en
Application granted granted Critical
Publication of CN204457607U publication Critical patent/CN204457607U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model provides a kind of steam injection ball-and-seat, it includes pipe and in and is set in the outer tube outside interior pipe, it is provided with a gas injection runner, gas injection runner includes one and is located at steam vent on interior pipe sidewall, one is arranged on the steam injection hole on outer tube wall, and one is arranged on sealing ring cavity between interior pipe and outer tube, steam vent is connected with the upper end of sealing ring cavity, an elasticity plugging device is placed with in sealing ring cavity, elasticity plugging device is mobile closely connected on inner pipe sheathed, its lateral surface is mutually closely connected with the medial surface of outer tube, and corresponding shutoff injecting hole, be provided with a fixing seal ring flat-plate and in the inner chamber of interior pipe on the downside of steam vent and be positioned over movable sealing ring flat-plate on fixing seal ring flat-plate, the outer peripheral edge of movable sealing ring flat-plate seals with the upper surface of fixing seal ring flat-plate inner peripheral and contacts.Steam injection ball-and-seat of the present utility model, makes the steam of injection enter oil reservoir completely, can not play downwards, improves the utilization ratio of steam.

Description

A kind of steam injection ball-and-seat
Technical field
The utility model belongs to steam thermal recovery oil recovery field, relates to a kind of down-hole gas filling device, especially a kind of steam injection ball-and-seat.
Background technology
In oil mining, conventional thermodynamic recovers the oil and mainly contains steam soak, steam flooding and SAGD (Steam AssistedGravity Drainage, SAGD are called for short SAGD) oil recovery technique.In above-mentioned each mode, usual employing ball-and-seat injects steam, but, in use find, conventional steam injection ball-and-seat enters with under steam injection string when oil well stream-injection, and Main Function is in steam injection process, unidirectional the opening of steam injection valve makes the unidirectional injection stratum of steam, prevent steam to be back in pit shaft from stratum, and need trip out from well after steam injection terminates, and then under enter flow string and produce.The method needs to remove twice tubing string, carries out kill job simultaneously, can produce higher operating cost, also formation can cause cold damage; During existing ball-and-seat steam injection, steam can the downward play of its inner chamber again, causes the heat injecting steam to there is certain waste, and what adopt due to kill job is hot sewage, also can there is certain cooling and contamination near wellbore zone.
Therefore, need the steam injection ball-and-seat studied a kind of efficiency utilization steam heat and increase economic efficiency, improve the effect of thickened oil steam-stimulated exploitation.
Utility model content
The purpose of this utility model is to provide a kind of steam injection ball-and-seat, makes the steam of injection enter oil reservoir completely, can not play downwards, improves the utilization ratio of steam.
For this reason, the utility model proposes a kind of steam injection ball-and-seat, it includes pipe and in and is set in the outer tube outside described interior pipe, it is provided with a gas injection runner, described gas injection runner includes one and is located at steam vent on described interior pipe sidewall, one is arranged on the steam injection hole on described outer tube wall, and one is arranged on sealing ring cavity between described interior pipe and outer tube, described steam vent is connected with the upper end of described sealing ring cavity, an elasticity plugging device is placed with in described sealing ring cavity, described elasticity plugging device is mobile to be closely connectedly set on described interior pipe, its lateral surface is mutually closely connected with the medial surface of described outer tube, and injecting hole described in corresponding shutoff, be provided with a fixing seal ring flat-plate and in the inner chamber of described interior pipe on the downside of described steam vent and be positioned over movable sealing ring flat-plate on described fixing seal ring flat-plate, the outer peripheral edge of described movable sealing ring flat-plate seals with the upper surface of described fixing seal ring flat-plate inner peripheral and contacts.
Steam injection ball-and-seat as above, wherein, described elasticity plugging device comprises and is set in steam injection baffle ring on described interior pipe and spring from top to bottom successively, the lateral surface of described steam injection baffle ring is mutually closely connected with the medial surface of described outer tube, and injecting hole described in corresponding shutoff, when described steam injection baffle ring moves down and compresses described spring, described injecting hole can be connected with described sealing ring cavity.
Steam injection ball-and-seat as above, wherein, the upper end of described interior pipe is arranged with top connection, and its lower end is connected with lower contact.
The steam injection ball-and-seat that the utility model proposes, when in steam injection during tube cavity, by cooperatively interacting of fixing seal ring flat-plate and movable sealing ring flat-plate, make steam can not play downwards, but flowed into completely by steam injection runner and enter oil reservoir, improve injection steam utilization, saved the energy, avoid causing cooling near wellbore zone and polluting.
The steam injection ball-and-seat that the utility model proposes, operationally, first steam injection ball-and-seat is connected successively with telescoping tube, the first instlated tubular, upper packer, the second instlated tubular, oil pipe, lower packet, oil well pump, screen casing, tail pipe and plug, forms flow string, in the lump lower going-into-well cylinder; During steam injection, sucker rod is transferred, movable sealing ring flat-plate is matched with fixing seal ring flat-plate, prevent steam from flowing downward, and in backward well, inject steam, steam enters in the sealing ring cavity between inner and outer pipe by exhaust hole, make steam injection baffle plate extrusion spring because steam injection pressure turns high meeting, open injecting hole, make steam enter stratum by injecting hole; And will sucker rod and movable sealing ring flat-plate be carried after steam injection terminates, in the extraction from below to up of oil recovery process Crude Oil.Thus, utilize steam injection ball-and-seat of the present utility model, steam injection can be realized and recover the oil integrated, namely enter down a tubing string, can steam injection oil producing operation be carried out.
Accompanying drawing explanation
Fig. 1 is the structural representation of steam injection ball-and-seat of the present utility model, demonstrates sucker rod and be positioned over state in this steam injection ball-and-seat in figure.
Fig. 2 is use reference diagram of the present utility model.
Critical element label declaration:
1 steam injection ball-and-seat
Pipe 111 steam vent in 11
12 outer tube 121 steam injection holes
13 gas injection runner 14 elasticity plugging devices
141 steam injection baffle ring 142 springs
15 fixing seal ring flat-plate 16 movable sealing ring flat-plates
17 top connection 18 lower contacts
H seals ring cavity
Detailed description of the invention
In order to there be understanding clearly to technical characteristic of the present utility model, object and effect, now contrast accompanying drawing and detailed description of the invention of the present utility model be described:
Fig. 1 is the structural representation of steam injection ball-and-seat of the present utility model, demonstrates sucker rod and be positioned over state in this steam injection ball-and-seat in figure.Fig. 2 is use reference diagram of the present utility model.
See Fig. 1, the steam injection ball-and-seat 1 that the utility model proposes, include pipe in one 11 and and be set in outer tube 12 outside described interior pipe 11, it is provided with a gas injection runner 13, described gas injection runner 13 includes one and is located at steam vent 111 on described interior pipe 11 sidewall, one is arranged on the steam injection hole 121 on described outer tube 12 sidewall, and one is arranged on sealing ring cavity H between described interior pipe 11 and outer tube 12, described steam vent 111 is connected with the upper end of described sealing ring cavity H, an elasticity plugging device 14 is placed with in described sealing ring cavity H, described elasticity plugging device 14 is mobile to be closely connectedly set on described interior pipe 11, its lateral surface is mutually closely connected with the medial surface of described outer tube 12, and injecting hole 121 described in corresponding shutoff, be provided with a fixing seal ring flat-plate 15 and in the inner chamber of described interior pipe 11 on the downside of described steam vent 111 and be positioned over movable sealing ring flat-plate 16 on described fixing seal ring flat-plate 15, the outer peripheral edge of described movable sealing ring flat-plate 16 seals with the upper surface of described fixing seal ring flat-plate 15 inner peripheral and contacts.
At work, the gas injection runner 13 of described steam injection one way valve 1 is opened when steam injection, and when recovering the oil, it is closed, and movable sealing ring flat-plate 16 is set on sucker rod 32; When injecting steam in flow string, utilize the mutually closely connected of fixing seal ring flat-plate 15 and movable sealing ring flat-plate 16, the inner chamber on the downside of described steam injection ball-and-seat can be cut off, steam is flowed out by means of only gas injection runner 13, thus avoid steam to flow downward along flow string, and then cause thermal loss, improve the utilization ratio of steam heat; When oil producing operation, movable sealing ring flat-plate 16 is up with sucker rod, thus departs from fixing seal ring flat-plate 15, and interior pipe 11 inner chamber making steam injection ball-and-seat 1 is a upper and lower connected state, makes fluid energy up, ensure that smooth oil producing operation.
Wherein, described elasticity plugging device 14 comprises and is set in steam injection baffle ring 141 on described interior pipe 11 and spring 142 from top to bottom successively, the lateral surface of described steam injection baffle ring 141 is mutually closely connected with the medial surface of described outer tube 12, and injecting hole 121 described in corresponding shutoff, when described steam injection baffle ring 141 moves down and compresses described spring 142, described injecting hole 121 can be connected with described sealing ring cavity H.In addition, the upper end of described interior pipe is arranged with top connection 17, and its lower end is connected with lower contact 18.
As described in Figure 2, the steam injection ball-and-seat that the utility model proposes, that telescoping tube 21, first instlated tubular 22, upper packer 23, second instlated tubular 24, steam injection ball-and-seat 1, oil pipe 25, lower packet 26, oil well pump 27, screen casing 28, tail pipe 29 and plug 30 are connected successively in use, form flow string, and it is inner sucker rod 32 to be placed on this flow string, its lower end is connected with the travelling valve (plunger) 271 in oil well pump 27, and movable sealing ring flat-plate 16 is set on sucker rod 32, afterwards, by under this flow string in the lump lower going-into-well;
When steam injection operation, 4 set upper packer 23 and lower packet 26 in the wellbore, annular space in packing pit shaft, the steam of injection is made to scurry into bottom, and movable sealing ring flat-plate 16 is placed on fixing seal ring flat-plate 15, the lower side space of pipe 11 in cutting off, when steam enters sealing ring cavity H by interior pipe 11 inner chamber and steam vent 111, under the steam pressure of lasting injection, steam injection baffle ring 141 can be promoted move down and Compress Spring 142, thus open injecting hole 121, make steam by the inner chamber of interior pipe 11 through steam vent 111, sealing ring cavity H and injecting hole 121 flow out, steam injection operation is carried out through perforated interval 41 couples of oil reservoir S of pit shaft 4, after steam injection operation completes, steam injection baffle ring 141 under the effect of the restoring force of spring 142 on move, shutoff injecting hole 121 again, avoids the fluid etc. in pit shaft to enter flow string through injecting hole 121, thus plays a good protection, subsequently, namely drive travelling valve 271 to move up and down by sucker rod 32, carry out oil producing operation by the horizontal branch well section 42 on the downside of pit shaft 4, as the oil extraction operation process of this sucker rod 32 in oil well pump, for prior art, therefore not to repeat here.
The steam injection ball-and-seat that the utility model proposes, when in steam injection during tube cavity, by cooperatively interacting of fixing seal ring flat-plate and movable sealing ring flat-plate, make steam can not through the downward play of interior tube cavity, but flowed into completely by steam injection runner and enter oil reservoir, improve injection steam utilization, saved the energy, avoid causing cooling near wellbore zone and polluting.
The steam injection ball-and-seat that the utility model proposes, operationally, first steam injection ball-and-seat is connected successively with telescoping tube, the first instlated tubular, upper packer, the second instlated tubular, oil pipe, lower packet, oil well pump, screen casing, tail pipe and plug, forms flow string, in the lump lower going-into-well cylinder; During steam injection, sucker rod is transferred, movable sealing ring flat-plate is matched with fixing seal ring flat-plate, prevent steam from flowing downward, and in backward well, inject steam, steam enters in the sealing ring cavity between inner and outer pipe by exhaust hole, make steam injection baffle plate extrusion spring because steam injection pressure turns high meeting, open injecting hole, make steam enter stratum by injecting hole; And will sucker rod and movable sealing ring flat-plate be carried after steam injection terminates, in the extraction from below to up of oil recovery process Crude Oil.Thus, utilize steam injection ball-and-seat of the present utility model, steam injection can be realized and recover the oil integrated, namely enter down a tubing string, can steam injection oil producing operation be carried out.
The foregoing is only the schematic detailed description of the invention of the utility model, and be not used to limit scope of the present utility model.Any those skilled in the art, equivalent variations done under the prerequisite not departing from design of the present utility model and principle and amendment, all should belong to the scope of the utility model protection.

Claims (3)

1. a steam injection ball-and-seat, it is characterized in that, described steam injection ball-and-seat includes pipe and in and is set in the outer tube outside described interior pipe, it is provided with a gas injection runner, described gas injection runner includes one and is located at steam vent on described interior pipe sidewall, one is arranged on the steam injection hole on described outer tube wall, and one is arranged on sealing ring cavity between described interior pipe and outer tube, described steam vent is connected with the upper end of described sealing ring cavity, an elasticity plugging device is placed with in described sealing ring cavity, described elasticity plugging device is mobile to be closely connectedly set on described interior pipe, its lateral surface is mutually closely connected with the medial surface of described outer tube, and injecting hole described in corresponding shutoff, be provided with a fixing seal ring flat-plate and in the inner chamber of described interior pipe on the downside of described steam vent and be positioned over movable sealing ring flat-plate on described fixing seal ring flat-plate, the outer peripheral edge of described movable sealing ring flat-plate seals with the upper surface of described fixing seal ring flat-plate inner peripheral and contacts.
2. steam injection ball-and-seat as claimed in claim 1, it is characterized in that, described elasticity plugging device comprises and is set in steam injection baffle ring on described interior pipe and spring from top to bottom successively, the lateral surface of described steam injection baffle ring is mutually closely connected with the medial surface of described outer tube, and injecting hole described in corresponding shutoff, when described steam injection baffle ring moves down and compresses described spring, described injecting hole can be connected with described sealing ring cavity.
3. steam injection ball-and-seat as claimed in claim 1 or 2, it is characterized in that, the upper end of described interior pipe is arranged with top connection, and its lower end is connected with lower contact.
CN201420847062.1U 2014-12-26 2014-12-26 A kind of steam injection ball-and-seat Expired - Fee Related CN204457607U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420847062.1U CN204457607U (en) 2014-12-26 2014-12-26 A kind of steam injection ball-and-seat

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420847062.1U CN204457607U (en) 2014-12-26 2014-12-26 A kind of steam injection ball-and-seat

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CN204457607U true CN204457607U (en) 2015-07-08

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107605440A (en) * 2017-10-30 2018-01-19 山东威马泵业股份有限公司 A kind of hypotonic stripper well aeroelasticity extracting device of oil
CN108547602A (en) * 2018-04-24 2018-09-18 西南石油大学 A kind of air water dispenser and method
CN112267857A (en) * 2020-09-22 2021-01-26 中国石油天然气股份有限公司 Gas injection anti-channeling device, reservoir gas injection pipe column and reservoir gas injection method
CN114109306A (en) * 2020-08-31 2022-03-01 中国石油天然气股份有限公司 Injection valve structure and using method thereof
CN114135261A (en) * 2021-11-12 2022-03-04 中国石油天然气股份有限公司 Supercritical steam huff-puff well heat-insulation steam injection pipe column and gas injection method

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107605440A (en) * 2017-10-30 2018-01-19 山东威马泵业股份有限公司 A kind of hypotonic stripper well aeroelasticity extracting device of oil
CN108547602A (en) * 2018-04-24 2018-09-18 西南石油大学 A kind of air water dispenser and method
CN108547602B (en) * 2018-04-24 2020-07-17 西南石油大学 Gas-water separate injection device and method
CN114109306A (en) * 2020-08-31 2022-03-01 中国石油天然气股份有限公司 Injection valve structure and using method thereof
CN114109306B (en) * 2020-08-31 2023-11-28 中国石油天然气股份有限公司 Injection valve structure and application method thereof
CN112267857A (en) * 2020-09-22 2021-01-26 中国石油天然气股份有限公司 Gas injection anti-channeling device, reservoir gas injection pipe column and reservoir gas injection method
CN112267857B (en) * 2020-09-22 2022-11-04 中国石油天然气股份有限公司 Gas injection anti-channeling device, reservoir gas injection pipe column and reservoir gas injection method
CN114135261A (en) * 2021-11-12 2022-03-04 中国石油天然气股份有限公司 Supercritical steam huff-puff well heat-insulation steam injection pipe column and gas injection method

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150708

CF01 Termination of patent right due to non-payment of annual fee