CN211119399U

CN211119399U - High-sulfur-content gas well annular combustion control device with automatic pressure relief function

Info

Publication number: CN211119399U
Application number: CN201921776999.3U
Authority: CN
Inventors: 沈若飞; 汤博; 田涛; 魏雪岩; 郭建萍; 张芷维
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-22
Filing date: 2019-10-22
Publication date: 2020-07-28
Anticipated expiration: 2029-10-22

Abstract

The utility model discloses a high sulphur gas well annular space combustion control device that contains with automatic pressure release function, include: the outer surface of the combustion bin is fixedly connected with an air duct communicated with the interior of the combustion bin; a heat insulation and gas guide mechanism; the upper surface of the combustion chamber is connected with a heat-insulation and gas-guide mechanism, and the combustion chamber is connected with a gas inlet pipe through the heat-insulation and gas-guide mechanism; the combustion chamber is divided into a premixing chamber, a first combustion chamber and a second combustion chamber from top to bottom by the two partition plate mechanisms, and electric spark igniters are arranged in the first combustion chamber and the second combustion chamber; the combustion bin is internally connected with a combustion chamber, and the combustion chamber is internally provided with a combustion chamber; buffer gear includes engaging lug, cowl, spring and connecting plate. The utility model provides a high sulphur gas well annular space burning controlling means who contains with automatic pressure release function has the more abundant advantage of sulphur gas burning.

Description

High-sulfur-content gas well annular combustion control device with automatic pressure relief function

Technical Field

The utility model relates to an oil and gas production facility field specifically is high sulphur gas well annular space burning controlling means who contains with automatic pressure release function.

Background

The cement is injected into the ground layer and the casing of the oil and gas well in the annular space, and the cement has the main function of preventing fluid channeling among the ground layers to ensure long-term interlayer packing, and the effective interlayer packing must be realized during the service life of the oil and gas well and after the oil and gas well is scrapped. Some, and in particular natural gas wells, even when cemented the drilling fluid displaces well and the set cement acts as a seal initially, but changes in well conditions create sufficient stress to destroy the integrity of the cement sheath, the result of which will be a failure of the zonal seal as evidenced by later natural gas blowby, annulus pressure, or worse casing collapse instances.

Can effectually avoid the superpressure occurence of failure through the well head pressure release, in prior art, when high-pressure gas well carries out the annular space pressure release, operating personnel passes through the pipe and leads to in with the partial gas in the natural gas well leading-in to the combustion chamber, the mode through the burning makes the gaseous decomposition of deriving to reduce the interior pressure of well, however, because sulphur content is higher in the gas, when the gas burning of deriving is not sufficient, there is huge influence to surrounding environment and operating personnel's health.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high sulphur gas well annular space combustion control device that contains with automatic pressure release function to solve the problem that provides among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

high sulphur gas well annular combustion controlling means that contains with automatic pressure release function includes: the outer surface of the combustion bin is fixedly connected with an air duct communicated with the interior of the combustion bin; a heat insulation and gas guide mechanism; the upper surface of the combustion chamber is connected with a heat-insulation and gas-guide mechanism, and the combustion chamber is connected with a gas inlet pipe through the heat-insulation and gas-guide mechanism; the combustion chamber is divided into a premixing chamber, a first combustion chamber and a second combustion chamber from top to bottom by the two partition plate mechanisms, and electric spark igniters are arranged in the first combustion chamber and the second combustion chamber; the combustion bin is internally connected with a combustion chamber, and the combustion chamber is internally provided with a combustion chamber; buffer gear includes engaging lug, cowl, spring and connecting plate, be equipped with the ascending cowl of opening in the premix chamber, cowl is adjusted well with the gas outlet of thermal-insulated air guide mechanism, and the equal fixed connection in both ends of cowl has the connecting plate that the level set up, the one end of the upper surface connection spring of connecting plate, the other end of spring are connected with the engaging lug, the upper end inner wall fixed connection of engaging lug and premix chamber.

As a further aspect of the present invention: the heat-insulation gas guide mechanism comprises a water outlet pipe, a gas guide bin, a ceramic gas guide pipe, a water channel and a water inlet pipe, wherein the gas guide bin is arranged above the combustion bin, the lower surface of the gas guide bin is communicated with one end of the ceramic gas guide pipe, the other end of the ceramic gas guide pipe penetrates through the upper end surface of the combustion bin, and an opening at one end, positioned in the combustion bin, of the ceramic gas guide pipe is aligned with the arc-shaped baffle; the upper surface of the air guide bin is communicated with the air inlet pipe.

As a further aspect of the present invention: the heat-insulating and gas-guiding mechanism further comprises a water outlet pipe, a water channel and a water inlet pipe, the water channel is formed in the bin wall of the gas-guiding bin, the two ends of the water channel are respectively connected with the water outlet pipe and the water inlet pipe, and the water outlet pipe and the water inlet pipe are respectively fixedly connected with the outer surface of the gas-guiding bin.

As a further aspect of the present invention: the water outlet pipe is positioned above the water inlet pipe.

As a further aspect of the present invention: the baffle mechanism includes baffle, spiral air flue and fixed block, the baffle that two symmetries of fixed block fixedly connected with set up, and the fixed block through two baffle fixed connection in the combustion chamber, set up in the fixed block simultaneously and the spiral air flue that link up from top to bottom.

As a further aspect of the present invention: the baffle sets up in the slope, and the baffle is close to the one end of fixed block and is located the below of the other end.

Compared with the prior art, the beneficial effects of the utility model are that: when the device is used, the high-sulfur-content gas can be combusted in the first combustion chamber and the second combustion chamber for two times, so that the high-sulfur-content gas is combusted more fully, and the pollution to the environment is reduced; and when high sulphur gas enters into the combustion chamber, block the air current through cowl, make the air current take place the baffling, disturb the flow direction of air current, and when getting into the air through the air duct, also can disturb high sulphur gas, make high sulphur gas and air mixing more abundant, thereby make the burning of sulphur gas more abundant, and because the disturbance of air current, cowl can send out and rock under the effect of spring, the mist in the storehouse is mixed in advance in the disturbance also can be disturbed through rocking of shape baffle, make high sulphur gas and air mixing more abundant, make the burning of sulphur gas more abundant.

Drawings

FIG. 1 is a schematic structural diagram of an annular combustion control device of a high-sulfur-content gas well with an automatic pressure relief function.

Fig. 2 is a schematic structural view of the diaphragm mechanism of fig. 1.

Fig. 3 is a schematic structural view of the buffer mechanism in fig. 1.

In the figure: 1. an air inlet pipe; 2. a heat insulation and gas guide mechanism; 21. a water outlet pipe; 22. a gas guiding bin; 23. a ceramic gas-guide tube; 24. a water channel; 25. a water inlet pipe; 3. an air duct; 4. a partition mechanism; 41. a partition plate; 42. a helical air passage; 43. a fixed block; 5. a first combustion chamber; 6. a second combustion chamber; 7. a combustion chamber; 8. a buffer mechanism; 81. a telescopic rod; 82. an arc-shaped baffle plate; 83. a spring; 84. a connecting plate; 9. a premixing chamber; 9a, an electric spark igniter.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Referring to fig. 1-3, an annulus combustion control device for a high sulfur-containing gas well with automatic pressure relief function includes: the outer surface of the combustion bin 7 is fixedly connected with an air duct 3 communicated with the interior of the combustion bin 7; a heat insulation and gas guide mechanism 2; the upper surface of the combustion chamber 7 is connected with a heat-insulation and gas-guide mechanism 2, and the combustion chamber 7 is connected with a gas inlet pipe 1 through the heat-insulation and gas-guide mechanism 2; the number of the partition plate mechanisms 4 is two, the combustion chamber 7 is sequentially divided into a premixing chamber 9, a first combustion chamber 5 and a second combustion chamber 6 from top to bottom by the two partition plate mechanisms 4, and electric spark igniters 9a are arranged in the first combustion chamber 5 and the second combustion chamber 6; the buffer mechanism 8 is connected in the combustion chamber 7, and the buffer mechanism 8 is positioned in the premixing chamber 9.

Need to explain: the device is when using, high sulphur gas after the processing through natural gas pressure relief device enters into combustion chamber 7 through intake pipe 1 and thermal-insulated gas guide mechanism 2 in, and outside air enters into through air duct 3 and mixes in storehouse 9 in advance, work through electric spark igniter 9a for high sulphur gas burns in combustion chamber 7, thereby reduce the pollution to the environment, and high sulphur gas can carry out twice burning at first combustion chamber 5 and second combustion chamber 6, make high sulphur gas's burning more abundant.

Referring to fig. 1 and 3, the buffering mechanism 8 includes an engaging lug 81, an arc-shaped baffle 82, a spring 83 and a connecting plate 84, the arc-shaped baffle 82 with an upward opening is disposed in the premixing chamber 9, the arc-shaped baffle 82 is aligned with the air outlet of the heat-insulating air guide mechanism 2, the two ends of the arc-shaped baffle 82 are both fixedly connected with the horizontally arranged connecting plate 84, the upper surface of the connecting plate 84 is connected with one end of the spring 83, the other end of the spring 83 is connected with the engaging lug 81, and the engaging lug 81 is fixedly connected with the inner wall of the upper end of the premixing chamber 9.

Need to explain: when high sulfur-containing gas enters combustion chamber 7, block the air current through cowl 82, make the air current take place the baffling, the flow direction of upset air current, and when getting into the air through air duct 3, also can disturb high sulfur-containing gas, make high sulfur-containing gas and air mixing more abundant, thereby make sulfur-containing gas's burning more abundant, and because the disturbance of air current, under the effect of spring 83, cowl 82 can send out and rock, the gas mixture in storehouse 9 is mixed in advance in the rocking that also can disturb through shape baffle 82, make high sulfur-containing gas and air mixing more abundant, make sulfur-containing gas's burning more abundant.

Referring to fig. 1, the heat-insulating gas guide mechanism 2 includes a water outlet pipe 21, a gas guide bin 22, a ceramic gas guide pipe 23, a water channel 24 and a water inlet pipe 25, the gas guide bin 22 is disposed above the combustion bin 7, the lower surface of the gas guide bin 22 is communicated with one end of the ceramic gas guide pipe 23, the other end of the ceramic gas guide pipe 23 penetrates through the upper end surface of the combustion bin 7, and an opening at one end of the ceramic gas guide pipe 23, which is located in the combustion bin 7, is aligned with the arc-shaped baffle 82; the upper surface of the air guide chamber 22 is communicated with the air inlet pipe 1.

Need to explain: the ceramic air duct 23 has poor heat-conducting property, so that the temperature of the combustion chamber 7 is transmitted to the vicinity of a gas well by a metal duct when the combustion chamber 7 is combusted, and the use safety of the device is improved.

Referring to fig. 1, the heat-insulating and air-guiding mechanism 2 further includes an outlet pipe 21, a water channel 24 and an inlet pipe 25, the water channel 24 is formed on the wall of the air-guiding chamber 22, the two ends of the water channel 24 are respectively connected with the outlet pipe 21 and the inlet pipe 25, and the outlet pipe 21 and the inlet pipe 25 are respectively fixedly connected with the outer surface of the air-guiding chamber 22.

Need to explain: external cooling water enters the water channel 24 through the water outlet pipe 21 and is discharged through the water outlet pipe 21, so that the gas guide bin 22 can be cooled, the probability that the temperature metal guide pipe of the combustion bin 7 is transmitted to the position near a gas well is further reduced, and the use safety of the device is further improved.

Referring to fig. 1, the water outlet pipe 21 is located above the water inlet pipe 25.

Need to explain: thereby the bottom is intake, increases the time that the cooling water circulates in the water course 24, thereby is favorable to the cooling to the air guide storehouse 22.

Referring to fig. 1 and 2, the partition plate mechanism 4 includes a partition plate 41, a spiral air duct 42 and a fixing block 43, the fixing block 43 is fixedly connected with two partition plates 41 symmetrically arranged, the fixing block 43 is fixedly connected in the combustion chamber 7 through the two partition plates 41, and the fixing block 43 is provided therein with the spiral air duct 42 vertically penetrating therethrough; the partition plate 41 is obliquely arranged, and one end of the partition plate 41 close to the fixing block 43 is positioned below the other end.

Need to explain: the partition plate 41 and the fixed block 43 play a role of blocking, and the sulfur-containing gas and the air are enabled to swirl in the spiral air passage 42 through the spiral air passage 42, so that the sulfur-containing gas and the air are further mixed.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. High sulphur gas well annular combustion controlling means that contains with automatic pressure release function, its characterized in that includes:

the outer surface of the combustion bin (7) is fixedly connected with an air duct (3) which is communicated with the interior of the combustion bin;

a heat insulation and air guide mechanism (2); the upper surface of the combustion bin (7) is connected with a heat-insulation and gas-guide mechanism (2), and the combustion bin (7) is connected with a gas inlet pipe (1) through the heat-insulation and gas-guide mechanism (2);

the number of the partition plate mechanisms (4) is two, the two partition plate mechanisms (4) divide the combustion chamber (7) into a premixing chamber (9), a first combustion chamber (5) and a second combustion chamber (6) from top to bottom in sequence, and electric spark igniters (9a) are arranged in the first combustion chamber (5) and the second combustion chamber (6);

the buffer mechanism (8) is connected in the combustion bin (7), and the buffer mechanism (8) is positioned in the premixing chamber (9); buffer gear (8) are including engaging lug (81), cowl (82), spring (83) and connecting plate (84), be equipped with ascending cowl (82) of opening in premixing chamber (9), cowl (82) are adjusted well with the gas outlet of thermal-insulated air guide mechanism (2), and the equal fixed connection in both ends of cowl (82) has connecting plate (84) that the level set up, the one end of upper surface connection spring (83) of connecting plate (84), the other end of spring (83) is connected with engaging lug (81), engaging lug (81) and the upper end inner wall fixed connection who mixes chamber (9) in advance.

2. The high-sulfur-content gas well annulus combustion control device with the automatic pressure relief function according to claim 1, wherein the heat-insulating and gas-guiding mechanism (2) comprises a water outlet pipe (21), a gas-guiding bin (22), a ceramic gas-guiding pipe (23), a water channel (24) and a water inlet pipe (25), the gas-guiding bin (22) is arranged above the combustion bin (7), the lower surface of the gas-guiding bin (22) is communicated with one end of the ceramic gas-guiding pipe (23), the other end of the ceramic gas-guiding pipe (23) penetrates through the upper end face of the combustion bin (7), and an opening at one end, located in the combustion bin (7), of the ceramic gas-guiding pipe (23) is aligned with the arc-shaped baffle plate (82); the upper surface of the air guide bin (22) is communicated with the air inlet pipe (1).

3. The high-sulfur-content gas well annulus combustion control device with the automatic pressure relief function according to claim 2, wherein the heat-insulating and gas-guiding mechanism (2) further comprises a water outlet pipe (21), a water channel (24) and a water inlet pipe (25), the water channel (24) is formed in the wall of the gas-guiding chamber (22), the two ends of the water channel (24) are respectively connected with the water outlet pipe (21) and the water inlet pipe (25), and the water outlet pipe (21) and the water inlet pipe (25) are respectively fixedly connected with the outer surface of the gas-guiding chamber (22).

4. The high sulfur content gas well annulus combustion control device with automatic pressure relief function as claimed in claim 3 wherein the water outlet pipe (21) is located above the water inlet pipe (25).

5. The high-sulfur-content gas well annulus combustion control device with the automatic pressure relief function according to claim 1, characterized in that the partition plate mechanism (4) comprises a partition plate (41), a spiral air passage (42) and a fixed block (43), the fixed block (43) is fixedly connected with two symmetrically arranged partition plates (41), the fixed block (43) is fixedly connected in the combustion bin (7) through the two partition plates (41), and the spiral air passage (42) which is communicated with the upper part and the lower part is formed in the fixed block (43).

6. The high sulfur content gas well annulus combustion control device with automatic pressure relief function as claimed in claim 5 wherein the baffle (41) is disposed obliquely with one end of the baffle (41) near the fixed block (43) below the other end.