Sampling test valve
By designing a sampling test valve containing a funnel filter and a hydrogen sulfide gas detector, the problems of low safety, insufficient accuracy and lack of integrated design of the oil well detection device in the prior art are solved, automatic detection and desulfurization are realized, and the safety and accuracy of detection are improved.
Patent Information
- Application Number
- CN202510235206.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2025-05-06
AI Technical Summary
The existing oil well detection devices rely on manual operation in the sampling process, which is low in safety; they are easily disturbed by the oil well environment and have insufficient accuracy; they lack integrated design, making it difficult to achieve real-time alarm and data storage.
Design a compact, safe and reliable sampling and testing valve, including air intake pipe, funnel filter, cavity lock chuck, hydrogen sulfide gas detector and warning light, which can automatically detect and filter hydrogen sulfide gas in the oil well and trigger the warning light when hydrogen sulfide gas is detected.
It realizes automatic detection and desulfurization of hydrogen sulfide gas, improves the safety and accuracy of detection, has the functions of real-time alarm and data storage, and is suitable for complex oil well environments.
Smart Images
Figure CN119935660A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of oil and gas field safety, and in particular to a sampling test valve. Background Art
[0002] Hydrogen sulfide (H2S) is a highly toxic gas in oil well production, which can easily cause poisoning of personnel and corrosion of equipment. Existing detection devices have the following problems: the sampling process relies on manual operation, which is low in safety; it is easily affected by the oil well environment (high temperature, high humidity, impurities), and the accuracy is insufficient; it lacks an integrated design, making it difficult to achieve real-time alarm and data storage. Summary of the invention
[0003] In order to solve the above technical problems, a compact, safe and reliable device capable of detecting hydrogen sulfide gas and performing desulfurization is provided, which is suitable for complex oil well environments. The present invention adopts the following technical solutions.
[0004] A sampling test valve, including an air inlet pipe, a filter cavity, a funnel-type filter, a cavity locking chuck, a live locking piece, a liquid collecting cavity, a filter element fixing cavity, a filter element A, a filter element B, an air pipe, a safety pressure relief valve, a filter supporting base, a filter, a filter fixing plate, a desulfurization cavity, an exhaust valve, a hydrogen sulfide gas detector, and a warning light. The air inlet pipe is the entrance for the crude oil associated gas to enter the device, the filter cavity is connected to the air inlet pipe, a funnel-type filter is arranged inside the filter cavity, the cavity locking chuck connects the liquid collecting cavity and the filter cavity, and the cavity locking The clamping disc and the movable locking piece are used to realize the rapid disassembly and assembly of the liquid collecting chamber. The top of the filter cavity is connected to the filter element fixing cavity, and the filter element A and the filter element B can be installed in the filter element fixing cavity. The air pipe is connected to the filter element fixing cavity. The safety pressure relief valve is respectively connected to the air pipe and the bottom passage of the filter supporting base. The filter supporting base supports the filter. The filter fixing plate is connected to the desulfurization cavity and fixes the filter. The top of the desulfurization cavity is connected to the exhaust valve. The top of the filter element fixing cavity is connected to the hydrogen sulfide gas detector, and the hydrogen sulfide gas detector is provided with a warning light.
[0005] Furthermore, the funnel-type filter has a funnel-shaped appearance, and pores are evenly arranged on its surface. The funnel-type filter is used to filter moisture in crude oil associated gas, so that the wet crude oil associated gas containing water can use the funnel-type filter to condense liquid water droplets and flow into the liquid collecting chamber through the bottom and pores of the funnel-type filter.
[0006] Furthermore, the filter element A and the filter element B are installed at the slotted position of the filter element fixing cavity, and the filter element A and the filter element B are used to further filter the impurities in the crude oil associated gas.
[0007] Furthermore, the filter is arranged at the bottom of the desulfurization chamber, and the filter body is fixed by a filter fixing plate and a filter supporting base. The filter is used to prevent iron oxide desulfurizer particles from falling into the safety pressure relief valve and provide a passage for crude oil associated gas to enter the desulfurization chamber.
[0008] Furthermore, the hydrogen sulfide gas detector is connected to the top of the filter element fixing cavity, and the hydrogen sulfide gas detector is provided with a warning light. When the hydrogen sulfide gas detector detects that the crude oil associated gas contains hydrogen sulfide gas, the warning light comes on.
[0009] Preferably, the desulfurization chamber is filled with an iron oxide desulfurizer, which is in the form of large particles. The iron oxide desulfurizer can adsorb sulfur-containing compounds in the crude oil associated gas into the iron oxide desulfurizer, thereby removing hydrogen sulfide gas.
[0010] The beneficial effect of the present invention is that when a sampling test valve is in working state, crude oil associated gas flows into the filter cavity through the air inlet pipe, and the moisture that may be contained in the crude oil associated gas is filtered by using the funnel-type filter provided in the filter cavity, and the moisture in the moisture condenses at the air holes or the bottom of the funnel-type filter and then flows into the liquid collecting cavity, the cavity locking chuck connects the liquid collecting cavity and the filter cavity, the cavity locking chuck cooperates with the movable locking piece to realize the rapid disassembly and assembly of the liquid collecting cavity, and the rapid disassembly and assembly of the liquid collecting cavity by using the cavity locking chuck and the movable locking piece can quickly clean the moisture separation water in the crude oil associated gas in the liquid collecting cavity. The crude oil associated gas filtered by the funnel filter flows into the filter element fixed cavity, and the impurities of the crude oil associated gas are filtered by the filter element A and the filter element B provided in the filter element fixed cavity. The hydrogen sulfide gas concentration in the crude oil associated gas after filtering the impurities is detected by the hydrogen sulfide gas detector connected to the top of the filter element fixed cavity. When the crude oil associated gas is detected to contain hydrogen sulfide gas, the warning light is on, and the crude oil associated gas flows into the desulfurization cavity through the filter element fixed cavity, the air pipe, the safety pressure relief valve passage, the filter fixed plate and the filter fixed by the filter supporting base. The sulfur-containing compounds in the crude oil associated gas are adsorbed into the iron oxide desulfurizer by the iron oxide desulfurizer installed in the desulfurization cavity, thereby removing the hydrogen sulfide gas. The harmless associated gas after desulfurization is discharged through the exhaust valve provided on the top of the desulfurization cavity. A sampling test valve realizes the detection and desulfurization of hydrogen sulfide gas by using the above working state. The technical solution provided by the present invention has the characteristics of compact structure, safety and reliability. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a three-dimensional structural schematic diagram of a sampling test valve.
[0012] Figure 2 The invention is a schematic diagram of the cross-sectional structure of a sampling test valve.
[0013] Figure 3 It is a schematic diagram of the explosion structure of a sampling test valve.
[0014] In the figure: 101-intake pipe, 102-filter cavity, 103-funnel filter, 104-cavity locking chuck, 105-flexible locking piece, 106-liquid collecting cavity, 107-filter element fixing cavity, 108-filter element A, 109-filter element B, 110-trachea, 111-safety pressure relief valve, 112-filter supporting base, 113-filter, 114-filter fixing plate, 115-desulfurization cavity, 116-exhaust valve, 117-hydrogen sulfide gas detector, 118-warning light. DETAILED DESCRIPTION
[0015] The embodiment of the present invention provides a sampling test valve, such as Figure 1 , Figure 2 , Figure 3As shown, a sampling test valve comprises an air inlet pipe 101, a filter screen cavity 102, a funnel-type filter screen 103, a cavity locking chuck 104, a movable locking member 105, a liquid collecting cavity 106, a filter element fixing cavity 107, a filter element A 108, a filter element B 109, an air pipe 110, a safety pressure relief valve 111, a filter screen supporting base 112, a filter screen 113, a filter screen fixing plate 114, a desulfurization cavity 115, an exhaust valve 116, a hydrogen sulfide gas detector 117, and a warning light 118. The air inlet pipe 101 is an entrance for crude oil associated gas to enter the device, the filter screen cavity 102 is connected to the air inlet pipe 101, a funnel-type filter screen 103 is arranged inside the filter screen cavity 102, and the cavity locking chuck 104 is connected to the air inlet pipe 101. The liquid collecting chamber 106 is connected to the filter screen chamber 102, and the chamber locking chuck 104 cooperates with the movable locking piece 105 to realize the rapid disassembly and assembly of the liquid collecting chamber 106. The top of the filter screen chamber 102 is connected to the filter element fixing chamber 107, and the filter element A108 and the filter element B109 can be installed in the filter element fixing chamber 107. The air pipe 110 is connected to the filter element fixing chamber 107, and the safety pressure relief valve 111 is respectively connected to the air pipe 110 and the bottom passage of the filter screen supporting base 112. The filter screen supporting base 112 supports the filter screen 113. The filter screen fixing plate 114 is connected to the desulfurization chamber 115 and fixes the filter screen 113. The top of the desulfurization chamber 115 is connected to the exhaust valve 116, and the top of the filter element fixing chamber 107 is connected to the hydrogen sulfide Gas detector 117, the hydrogen sulfide gas detector is provided with a warning light 118; the funnel filter 103 is funnel-shaped, and pores are evenly arranged on its surface. The funnel filter 103 is used to filter moisture in the crude oil associated gas, so that the wet crude oil associated gas containing water uses the funnel filter 103 to condense liquid water droplets through the bottom and pores of the funnel filter 103 to flow into the liquid collecting chamber 106; the filter element A108 and the filter element B109 are installed in the slot position of the filter element fixing chamber 107, and the filter element A108 and the filter element B109 are used to further filter impurities in the crude oil associated gas; the filter 113 is arranged at the bottom of the desulfurization chamber 115, and the filter 113 uses the filter fixing plate 11 4 and the filter supporting base 112 to fix its body, the filter 113 is used to prevent the iron oxide desulfurizer particles from falling into the safety pressure relief valve 111 and provide a passage for the crude oil associated gas to enter the desulfurization chamber 115; the desulfurization chamber 115 is filled with iron oxide desulfurizer, the iron oxide desulfurizer is in the form of large particles, the iron oxide desulfurizer can adsorb sulfur-containing compounds in the crude oil associated gas into the iron oxide desulfurizer, thereby removing hydrogen sulfide gas, the hydrogen sulfide gas detector 117 is connected to the top of the filter element fixing chamber 107, the hydrogen sulfide gas detector 117 is provided with a warning light 118, when the hydrogen sulfide gas detector 117 detects that the crude oil associated gas contains hydrogen sulfide gas, the warning light 118 lights up.
[0016] According to an embodiment of the present invention, when a sampling test valve is in working state, crude oil associated gas flows into the filter cavity 102 through the air inlet pipe 101, and moisture that may be contained in the crude oil associated gas is filtered by using the funnel-type filter 103 provided in the filter cavity 102. The moisture in the moisture condenses in the pores or the bottom of the funnel-type filter 103 and then flows into the liquid collecting cavity 106. The cavity locking chuck 104 connects the liquid collecting cavity 106 and the filter cavity 102. The cavity locking chuck 104 cooperates with the movable locking piece 105 to realize the rapid disassembly and assembly of the liquid collecting cavity 106. The rapid disassembly and assembly of the liquid collecting cavity 106 can be realized by using the cavity locking chuck 104 and the movable locking piece 105 to quickly clean the moisture separation water in the crude oil associated gas in the liquid collecting cavity 106. The crude oil associated gas filtered by the funnel filter 103 flows into the filter element fixed cavity 107, and the impurities of the crude oil associated gas are filtered by the filter element A108 and the filter element B109 provided in the filter element fixed cavity 107. The crude oil associated gas after filtering the impurities is detected by the hydrogen sulfide gas detector 117 connected to the top of the filter element fixed cavity 107 to detect the concentration of hydrogen sulfide gas in the crude oil associated gas. When the crude oil associated gas is detected to contain hydrogen sulfide gas, the warning light 118 lights up, and the crude oil associated gas passes through the filter element fixed cavity 107. 7. The air pipe 110, the safety pressure relief valve 111 passage, the filter fixing plate 114 and the filter 113 fixed by the filter supporting base 112 flow into the desulfurization chamber 115. The iron oxide desulfurizer installed in the desulfurization chamber 115 is used to adsorb sulfur-containing compounds in the crude oil associated gas into the iron oxide desulfurizer, thereby removing the hydrogen sulfide gas. The harmless associated gas after desulfurization is discharged through the exhaust valve 116 provided at the top of the desulfurization chamber 115. A sampling test valve uses the above working state to detect and desulfurize the hydrogen sulfide gas.
[0017] The above are preferred embodiments of the present invention. It should be pointed out that a person skilled in the art may make several improvements and modifications without departing from the principles of the invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.
Claims
1. A sampling test valve, characterized in that: It includes an intake pipe, a filter cavity, a funnel-type filter, a cavity locking chuck, a live joint locking piece, a liquid collecting cavity, a filter element fixing cavity, a filter element A, a filter element B, an air pipe, a safety pressure relief valve, a filter supporting base, a filter, a filter fixing plate, a desulfurization cavity, an exhaust valve, a hydrogen sulfide gas detector, and a warning light. The intake pipe is the entrance for the crude oil associated gas to enter the device. The filter cavity is connected to the intake pipe. A funnel-type filter is arranged inside the filter cavity. The cavity locking chuck connects the liquid collecting cavity and the filter cavity. The cavity locking chuck is connected to the live joint locking piece. The locking parts are used to realize the rapid disassembly and assembly of the liquid collecting chamber. The top of the filter cavity is connected to the filter element fixing cavity, and the filter element A and filter element B can be installed in the filter element fixing cavity. The air pipe is connected to the filter element fixing cavity. The safety pressure relief valve is respectively connected to the air pipe and the bottom passage of the filter supporting base. The filter supporting base supports the filter. The filter fixing plate is connected to the desulfurization chamber and fixes the filter. The top of the desulfurization chamber is connected to the exhaust valve. The top of the filter element fixing cavity is connected to the hydrogen sulfide gas detector, and the hydrogen sulfide gas detector is provided with a warning light.
2. A sampling test valve according to claim 1, characterized in that: The funnel-type filter has a funnel-shaped appearance, and pores are evenly arranged on its surface. The funnel-type filter is used to filter moisture in crude oil associated gas, so that the wet crude oil associated gas containing water can condense liquid water droplets through the bottom and pores of the funnel-type filter and flow into the liquid collecting chamber.
3. A sampling test valve according to claim 1, characterized in that: The filter element A and the filter element B are installed at the slotted position of the filter element fixing cavity, and the filter element A and the filter element B are used to further filter the impurities of the crude oil associated gas.
4. A sampling test valve according to claim 1, characterized in that: The filter is arranged at the bottom of the desulfurization chamber, and the filter body is fixed by a filter fixing plate and a filter supporting base. The filter is used to prevent iron oxide desulfurizer particles from falling into the safety pressure relief valve and provide a passage for crude oil associated gas to enter the desulfurization chamber.
5. A sampling test valve according to claim 1, characterized in that: The hydrogen sulfide gas detector is connected to the top of the filter element fixing cavity, and the hydrogen sulfide gas detector is provided with a warning light. When the hydrogen sulfide gas detector detects that the crude oil associated gas contains hydrogen sulfide gas, the warning light turns on.
6. A sampling test valve according to claim 1, characterized in that: The desulfurization chamber is filled with an iron oxide desulfurizer in the form of large particles. The iron oxide desulfurizer can adsorb sulfur-containing compounds in the crude oil associated gas into the iron oxide desulfurizer, thereby removing hydrogen sulfide gas.