CN203685149U - Wellhead gas injection device - Google Patents

Wellhead gas injection device Download PDF

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Publication number
CN203685149U
CN203685149U CN201420041195.XU CN201420041195U CN203685149U CN 203685149 U CN203685149 U CN 203685149U CN 201420041195 U CN201420041195 U CN 201420041195U CN 203685149 U CN203685149 U CN 203685149U
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CN
China
Prior art keywords
gas injection
nozzle
cylindrical
well head
gas
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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
CN201420041195.XU
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Chinese (zh)
Inventor
申健
侯天江
刘勇
杨建国
曾绕艳
闫鹏
杜习广
李宗林
张启亮
刘晓林
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申健
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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Priority to CN201420041195.XU priority Critical patent/CN203685149U/en
Application granted granted Critical
Publication of CN203685149U publication Critical patent/CN203685149U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a wellhead gas injection device, and belongs to the technical field of oil and gas exploitation. The wellhead gas injection device overcomes the defects that when the flow of nitrogen gas is low, the sound wave effect is poorer, nitrogen gas manufacturing equipment operates with full loads for a long time, and consumption of oil is large in the prior art. According to the structural relation of the wellhead gas injection device, an air release valve is installed on the upper surface of an equal diameter tee; the equal diameter tee is connected with a one-way valve; a combined gas injection connector is composed of a gas injection connector body and a nozzle; one end of the combined gas injection connector is connected with a wellhead; the other end of the combined gas injection connector is connected with the equal diameter tee; a cylindrical oscillation cavity is formed inside the gas injection connector body; the outlet end of the cylindrical oscillation cavity is firmly connected with the gas inlet end of the nozzle; a conical drainage cavity, a cylindrical throat and a conical feedback cavity are sequentially arranged inside the nozzle in the gas injection direction; the outlet end of the cylindrical oscillation cavity is provided with an inner thread; the outer edge of the gas inlet end of the nozzle is provided with an outer thread; the outlet end of the cylindrical oscillation cavity and the inlet end of the nozzle are fastened and connected in a threaded mode; the two ends of the combined gas injection connector are provided with threads connected with the wellhead and the equal diameter tee respectively.

Description

A kind of well head gas injection device
technical field: the utility model relates to oil-gas mining technical field, especially a kind of well head gas injection device.
background technology: the Chinese utility model patent that notification number is CN201225124Y discloses a kind of sound wave gas injection single flow valve assembly, formed by gas injection joint, equal tee, ball-and-seat, atmospheric valve, connection pipe nipple, be respectively equipped with connecting thread at gas injection joint two ends, one end and well head connect, the other end and equal tee connect, gas injection joint is inner is the stepped cylindrical cavity being arranged in order, and is respectively spray chamber, vibration chamber and enlarged cavity, is processed with a horn mouth at the inlet end of spray chamber.Lift in work progress at note nitrogen, high pressure nitrogen produces sound wave during by the spray chamber in gas injection joint, vibration chamber, enlarged cavity, sound wave effect is well liquid produce cavitation and mechanical oscillation effect in construction well, can flow and go upward to well head and discharge pit shaft with speed faster at the promotion of the high pressure nitrogen liquid of going into the well.
While using at the scene this device, find, when the discharge capacity of nitrogen injection hour, in gas injection joint, produce the DeGrain of sound wave, the speed of gas lift liquid drainage is not accelerated, the gaslift activity duration is longer.In order to reach the object of hydrops in quick discharge well, need to improve the discharge capacity of nitrogen injection, competence exertion goes out the advantage of sound wave gas injection, but the equipment of making nitrogen need be in oepration at full load state, and the fuel consumption of the equipment of making nitrogen is more.It is long that simultaneously constructor is exposed in operations involving high pressure environment the time, is unfavorable for keeping the safety in production.
summary of the invention:the purpose of this utility model is to provide a kind of well head gas injection device that reduces fuel consumption, shortens the engineering time, it produces sound wave effect while overcoming the low nitrogen flow existing in prior art poor, the equipment of making nitrogen needs at full capacity, long-play, the defect that fuel consumption is many.
The utility model is realized like this: it is to be formed by connecting by combined type gas injection joint, equal tee, atmospheric valve, ball-and-seat, vibration chamber, drainage lumens, aditus laryngis, feedback cavity, nozzle, gas injection joint, atmospheric valve is arranged on above equal tee, and equal tee is connected with ball-and-seat; Combined type gas injection joint is made up of gas injection joint and nozzle, and combined type gas injection joint one end and well head connect, and the other end and equal tee connect; In gas injection joint, there is a cylindrical vibration chamber, the port of export in cylindrical vibration chamber and the inlet end strong bond of nozzle; Nozzle interior has conical drainage chamber, cylindrical aditus laryngis and conical feedback cavity successively according to gas injection direction; The port of export in cylindrical vibration chamber has internal thread, and there is external screw thread the inlet end outer of nozzle, the port of export in cylindrical vibration chamber and the fastening threadably connection of the entrance point of nozzle; There is respectively the screw thread connecting with well head and equal tee at combined type gas injection joint two ends.
Before gas injection construction, the utility model is installed and is fastened on gas-lift well well head, gas injection pipeline and the utility model other end are connect.At this moment, the atmospheric valve on head valve and the utility model should be in closed condition.In the time starting gas injection construction, open head valve, the nitrogen that nitrogen-making device produces enters combined type gas injection joint through ball-and-seat, equal tee in the utility model, when high pressure nitrogen passes through the cylindrical vibration chamber in combined type gas injection joint, produces vibration.When the nitrogen stream of vibration passes through the conical drainage chamber in nozzle, nitrogen is first compressed by conical drainage chamber; Nitrogen after compression during at a high speed by the conical aditus laryngis in nozzle and conical feedback cavity, produces ultrasonic wave.Ultrasonic wave produces cavitation to liquid in the well of constructing, and makes well liquid produce bubble, reduces well fluid viscosity, improves flow regime, the frictional resistance that when minimizing well liquid the is up and interior tubing string of well surface produces; Simultaneously under the driving of nitrogen injection, well liquid energy rapid flow is up and discharge pit shaft.
When there is nitrogen making and injection device emergency shutdown situation, when operating personnel have little time to close head valve, the ball-and-seat on gas injection device is closed, and can play to prevent that high pressure nitrogen from returning and alter and the effect of impact device.
When gaslift construction finishes, need first close head valve, then open the atmospheric valve on gas injection device, drain the high pressure residual air in valve body, then remove gas injection pipeline, finally gas injection device is pulled down from well head.
The utility model can be arranged on gas-lift well well head.Lift in work progress at note nitrogen, when nitrogen that the equipment of making nitrogen is produced is with compared with low discharge when the vibration chamber by gas injection joint, the raw vibration of nitrogen miscarriage.The nitrogen of vibration produces ultrasonic wave while flowing by the drainage lumens in nozzle, aditus laryngis and feedback cavity.Ul-trasonic irradiation is well liquid in construction well, makes well liquid produce bubble, reduces well fluid viscosity, improves flow regime, the frictional resistance that when minimizing well liquid the is up and interior tubing string of well surface produces; Under the driving of nitrogen injection, well liquid energy rapid flow is up and discharge pit shaft simultaneously, reaches the object that alleviates equipment operating load, minimizing fuel consumption, shortening engineering time, improves gaslift efficiency of construction. 
This well head gas injection device is not only applicable to the construction of Oil/gas Well note nitrogen gas lift liquid drainage, and can be applicable to natural gas injection, the construction of carbon dioxide injection gas lift liquid drainage.
brief description of the drawings: Fig. 1 is a kind of structural representation of well head gas injection device; Wherein: 1, combined type gas injection joint 2, equal tee 3, atmospheric valve 4, ball-and-seat 5, vibration chamber 6, drainage lumens 7, aditus laryngis 8, feedback cavity 9, nozzle 10, gas injection joint.
detailed description of the invention: embodiment 1,the utility model is to be formed by connecting by combined type gas injection joint 1, equal tee 2, atmospheric valve 3, ball-and-seat 4, vibration chamber 5, drainage lumens 6, aditus laryngis 7, feedback cavity 8, nozzle 9, gas injection joint 10, atmospheric valve 3 is arranged on above equal tee 2, and equal tee 2 is connected with ball-and-seat 4; Combined type gas injection joint 1 is made up of gas injection joint 10 and nozzle 9, and combined type gas injection joint 1 one end and well head connect, and the other end and equal tee 2 connect.
In embodiment 2, gas injection joint 10, there is a cylindrical vibration chamber 5, the port of export in cylindrical vibration chamber 5 and the inlet end strong bond of nozzle 9.
There are conical drainage chamber 6, cylindrical aditus laryngis 7 and conical feedback cavity 8 in embodiment 3, nozzle 9 inside successively according to gas injection direction.
The port of export in embodiment 4, cylindrical vibration chamber 5 has internal thread, and there is external screw thread the inlet end outer of nozzle 9, the port of export in cylindrical vibration chamber 5 and the fastening threadably connection of the entrance point of nozzle 9.
There is respectively the screw thread connecting with well head and equal tee 2 at embodiment 5, combined type gas injection joint 1 two ends.

Claims (5)

1. a well head gas injection device, it is to be formed by connecting by combined type gas injection joint (1), equal tee (2), atmospheric valve (3), ball-and-seat (4), vibration chamber (5), drainage lumens (6), aditus laryngis (7), feedback cavity (8), nozzle (9), gas injection joint (10), it is characterized in that: atmospheric valve (3) is arranged on equal tee (2) above, equal tee (2) is connected with ball-and-seat (4); Combined type gas injection joint (1) is made up of gas injection joint (10) and nozzle (9), and combined type gas injection joint (1) one end and well head connect, and the other end and equal tee (2) connect.
2. a kind of well head gas injection device according to claim 1, is characterized in that: in gas injection joint (10), have a cylindrical vibration chamber (5), the inlet end strong bond of the port of export in cylindrical vibration chamber (5) and nozzle (9).
3. a kind of well head gas injection device according to claim 1, is characterized in that: nozzle (9) is inner has conical drainage chamber (6), cylindrical aditus laryngis (7) and conical feedback cavity (8) successively according to gas injection direction.
4. a kind of well head gas injection device according to claim 1, it is characterized in that: the port of export in cylindrical vibration chamber (5) has internal thread, there is external screw thread the inlet end outer of nozzle (9), the fastening threadably connection of entrance point of the port of export in cylindrical vibration chamber (5) and nozzle (9).
5. a kind of well head gas injection device according to claim 1, is characterized in that: there is respectively the screw thread connecting with well head and equal tee (2) at combined type gas injection joint (1) two ends.
CN201420041195.XU 2014-01-23 2014-01-23 Wellhead gas injection device Expired - Fee Related CN203685149U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420041195.XU CN203685149U (en) 2014-01-23 2014-01-23 Wellhead gas injection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420041195.XU CN203685149U (en) 2014-01-23 2014-01-23 Wellhead gas injection device

Publications (1)

Publication Number Publication Date
CN203685149U true CN203685149U (en) 2014-07-02

Family

ID=51007068

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420041195.XU Expired - Fee Related CN203685149U (en) 2014-01-23 2014-01-23 Wellhead gas injection device

Country Status (1)

Country Link
CN (1) CN203685149U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103758497A (en) * 2014-01-23 2014-04-30 申健 Wellhead gas injection device and application method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103758497A (en) * 2014-01-23 2014-04-30 申健 Wellhead gas injection device and application method

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

Granted publication date: 20140702

Termination date: 20150123

EXPY Termination of patent right or utility model