A sample gas drying filter cartridge for mud logging

Abstract

The utility model relates to mud logging technical field especially, more particularly to a sample gas drying filter cylinder for mud logging, including water release valve, still including transparent water collecting box, air inlet connector, micropore baffle, silica gel gasket one, adapter, transparent drying tube, silica gel gasket two, micropore membrane, air outlet cover and air outlet connector, the right side fixed mounting of water release valve has transparent water collecting box, the right side of transparent water collecting box is provided with adapter, the outside of adapter is provided with air inlet connector, the inside of adapter is provided with micropore baffle, the right side of micropore baffle is provided with silica gel gasket one, the right side of adapter is provided with transparent drying tube, the right side of transparent drying tube is provided with air outlet cover, the inside of air outlet cover is provided with silica gel gasket two, the right side of silica gel gasket two is provided with micropore membrane, the utility model can also block the loss of drying agent through micropore baffle separation liquid water, through micropore membrane, avoid drying agent solid dust to be carried out by gas, enter gas pipeline and cause pipeline blockage.

Description

Technical Field

[0001] This utility model relates to the field of logging technology, and in particular to a sample gas drying filter cartridge for logging. Background Technology

[0002] Well logging technology is the most basic technology in oil and gas exploration and development activities. It is the most timely and direct means of discovering and evaluating oil and gas reservoirs, and it has the characteristics of timely and diverse acquisition of underground information and rapid analysis and interpretation. Currently, at the well logging site, sample gas is separated from the drilling fluid by agitation in a degasser, and then transported to the analytical instrument via a gas pipeline for testing. The sample gas separated from the drilling fluid contains a large amount of water vapor, which condenses into liquid water during pipeline transport, causing blockages. Furthermore, sample gas with high water content entering the analytical instrument will lead to malfunctions. Therefore, the sample gas needs to be dried promptly after separation from the drilling fluid to prevent high-water-content sample gas from entering the gas pipeline. In current field applications, a drying pipe is connected to the sample gas outlet of the degasser for sample gas drying.

[0003] However, most existing drying tubes use porous baffles and degreased cotton at the bottom to prevent the desiccant from falling. Therefore, only granular anhydrous calcium chloride can be used, and powdered anhydrous magnesium sulfate cannot be used. Furthermore, since anhydrous calcium chloride deliquesces and forms a paste after absorbing water, it is difficult to replace the calcium chloride after it absorbs water, thus affecting the effectiveness of the product in the field. At the same time, the upper end of the drying tube is only covered with degreased cotton to prevent desiccant dust from entering the gas recording pipeline and then the detection instrument, causing pipeline blockage or abnormal operation of the detection instrument. Utility Model Content

[0004] To overcome the limitations of using only granular anhydrous calcium chloride as a desiccant at the lower end of the drying tube, instead of powdered anhydrous magnesium sulfate, and the difficulty in replacing the dehydrated calcium chloride after it absorbs water and forms a paste, thus affecting its effectiveness in the field, and to address the issue that the upper end of the drying tube is only protected with degreased cotton to block desiccant dust, which can then enter the gas recording pipeline and cause pipeline blockage or malfunction of the detection instrument, the following measures are taken.

[0005] The technical solution of this utility model is as follows: a sample gas drying filter cartridge for logging, including a drain valve, a transparent water collection box, an air inlet connector, a microporous baffle, a first silicone sealing gasket, an adapter, a transparent drying tube, a second silicone sealing gasket, a microporous membrane, an air outlet cover, and an air outlet connector; a transparent water collection box is fixedly installed on the right side of the drain valve, an adapter is provided on the right side of the transparent water collection box, an air inlet connector is provided on the outer side of the adapter, a microporous baffle is provided on the inner side of the adapter, a first silicone sealing gasket is provided on the right side of the microporous baffle, a transparent drying tube is provided on the right side of the adapter, an air outlet cover is provided on the right side of the transparent drying tube, a second silicone sealing gasket is provided on the inner side of the air outlet cover, a microporous membrane is provided on the right side of the second silicone sealing gasket, and an air outlet connector is provided on the right side of the air outlet cover.

[0006] Preferably, by setting a drain valve and a transparent water collection box, it is convenient to observe the amount of water separated. When the amount of water collected is large, it is released through the drain valve. By setting a microporous baffle, it is easy to separate liquid water and also to prevent the desiccant from being lost. By setting a microporous membrane, it is possible to prevent the solid dust of the desiccant from being carried out by the gas and entering the gas pipeline, causing pipeline blockage.

[0007] Preferably, the inner sides of the drain valve and the transparent water collection box are connected to each other, the left end of the transparent water collection box and the adapter are connected to each other, and the transparent water collection box and the adapter are sealed together by a sealing ring.

[0008] Preferably, the inner sides of the air intake connector and the adapter are connected to each other, and the right end of the adapter is connected to the transparent drying tube.

[0009] Preferably, the inner sides of the microporous baffle and the adapter are engaged with each other by a stepped groove, and the left side of the silicone sealing gasket is tightly fitted with the microporous baffle.

[0010] Preferably, the left end of the transparent drying tube extends to the inside of the adapter and fits tightly against the silicone sealing gasket. A desiccant is provided inside the transparent drying tube, and the right end of the transparent drying tube is connected to the air outlet cap.

[0011] Preferably, the silicone sealing gasket 2 and the inner side of the vent cap are adapted to each other, and the right end of the transparent drying tube extends to the inner side of the vent cap and fits tightly with the silicone sealing gasket 2.

[0012] Preferably, the right side of the silicone sealing gasket 2 is tightly fitted to the microporous membrane, the right side of the microporous membrane is tightly fitted to the inside of the vent cap through the sealing ring 2, and the vent connector and the inside of the vent cap are connected to each other.

[0013] The beneficial effects of this utility model are: The logging sample gas drying filter cartridge allows observation of the separated water volume through a transparent water collection box. When the collected water volume is large, it is released through a drain valve. The liquid water is separated by a microporous baffle, which also prevents the loss of desiccant. The microporous membrane prevents solid dust of desiccant from being carried out by the gas and entering the gas pipeline, causing pipeline blockage. Attached Figure Description

[0014] Figure 1 The diagram shown is a three-dimensional structural representation of the sample gas drying filter cartridge for logging according to this utility model. Figure 1 ; Figure 2 The diagram shown is a three-dimensional structural representation of the sample gas drying filter cartridge for logging according to this utility model. Figure 2 ; Figure 3 The diagram shown is a three-dimensional cross-sectional view of the sample gas drying filter cartridge for logging according to this utility model. Figure 4 This utility model is shown. Figure 3 Enlarged view of point A; Figure 5 This utility model is shown. Figure 3 Enlarged diagram of point B.

[0015] Explanation of reference numerals in the attached diagram: 1. Drain valve; 2. Transparent water collection box; 4. Air inlet connector; 5. Microporous baffle; 6. Silicone sealing gasket one; 7. Adapter; 8. Transparent drying tube; 10. Silicone sealing gasket two; 11. Microporous membrane; 13. Air outlet cover; 14. Air outlet connector. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Please see Figures 1-5This utility model provides an embodiment: a sample gas drying filter cartridge for logging, including a drain valve 1, a transparent water collection box 2, an air inlet connector 4, a microporous baffle 5, a first silicone sealing gasket 6, an adapter 7, a transparent drying tube 8, a second silicone sealing gasket 10, a microporous membrane 11, an air outlet cover 13, and an air outlet connector 14; the transparent water collection box 2 is fixedly installed on the right side of the drain valve 1, the adapter 7 is provided on the right side of the transparent water collection box 2, the air inlet connector 4 is provided on the outer side of the adapter 7, the microporous baffle 5 is provided on the inner side of the adapter 7, the first silicone sealing gasket 6 is provided on the right side of the microporous baffle 5, the transparent drying tube 8 is provided on the right side of the transparent drying tube 8, and the air outlet cover 13 is provided on the inner side of the air outlet cover 13. The sealing gasket 2 10 has a microporous membrane 11 on its right side, and the vent cap 13 has a vent connector 14 on its right side. The micropore diameters of the microporous baffle 5 and the microporous membrane 11 are selected as 1µm / 0.1µm, which not only prevents desiccant dust from entering the gas pipeline, but also allows the use of non-hygroscopic powdered anhydrous magnesium sulfate. At the same time, the 1µm / 0.1µm micropores also have the function of blocking liquid water. When the water-containing gas enters the adapter 7 from the vent connector 4, the liquid water is separated when it passes through the microporous baffle 5 and falls into the water collection box 2. The gas enters the drying tube 8 containing desiccant through the microporous baffle 5, where the water in the gas is absorbed by the desiccant. The dried gas is discharged after passing through the microporous membrane 11 and the vent connector 14.

[0018] Please see Figures 1-4 In this embodiment, the inner sides of the drain valve 1 and the transparent water collection box 2 are interconnected; the left end of the transparent water collection box 2 and the adapter 7 are interconnected; the transparent water collection box 2 and the adapter 7 are sealed together by a sealing ring; the inner sides of the air inlet connector 4 and the adapter 7 are interconnected; the right end of the adapter 7 and the transparent drying tube 8 are interconnected; the microporous baffle 5 and the inner side of the adapter 7 are engaged by a stepped groove; the left side of the silicone sealing gasket 6 is tightly fitted to the microporous baffle 5; and the left end of the transparent drying tube 8 extends to the inner side of the adapter 7 and... The silicone sealing gasket 6 fits tightly, and a desiccant is placed inside the transparent drying tube 8. The right end of the transparent drying tube 8 is connected to the air outlet cover 13. The desiccant is anhydrous calcium chloride / anhydrous magnesium sulfate, etc. Water-containing gas enters the adapter 7 from the air inlet connector 4. When it passes through the microporous baffle 5, the liquid water is separated and falls into the water collection box 2. The amount of water separated can be observed through the transparent water collection box 2. When the amount of water collected is large, it is released through the drain valve 1. The microporous baffle 5 separates the liquid water and also prevents the desiccant from being lost.

[0019] Please see Figures 2-5In this embodiment, the left end of the transparent drying tube 8 extends to the inside of the adapter 7 and is tightly fitted with the silicone sealing gasket 6. A desiccant is provided inside the transparent drying tube 8. The right end of the transparent drying tube 8 is connected to the air outlet cover 13. The silicone sealing gasket 10 and the inside of the air outlet cover 13 are adapted to each other. The right end of the transparent drying tube 8 extends to the inside of the air outlet cover 13 and is tightly fitted with the silicone sealing gasket 10. The right side of the silicone sealing gasket 10 is tightly fitted with the microporous membrane 11. The right side of the microporous membrane 11 and the inside of the air outlet cover 13 are tightly fitted by the sealing ring 2. The air outlet connector 14 and the inside of the air outlet cover 13 are connected to each other. The gas enters the drying tube 8 containing the desiccant through the microporous baffle 5. The water in the gas is absorbed by the desiccant. The dried gas is discharged after passing through the microporous membrane 11 and the air outlet connector 14. The gas passes through the microporous membrane 11 to prevent the solid dust of the desiccant from being carried out by the gas and entering the gas pipeline, causing pipeline blockage.

[0020] During operation, water-containing gas enters the adapter 7 from the inlet connector 4. When it passes through the microporous baffle 5, the liquid water is separated and falls into the water collection box 2. The gas then enters the drying tube 8 containing desiccant through the microporous baffle 5. The water in the gas is absorbed by the desiccant. The dried gas is discharged after passing through the microporous membrane 11 and the outlet connector 14. The amount of water separated can be observed through the transparent water collection box 2. When there is a lot of water, it is released through the drain valve 1. The microporous baffle 5 separates the liquid water and also prevents the desiccant from being lost. The microporous membrane 11 prevents the solid dust of the desiccant from being carried out by the gas and entering the gas pipeline, causing pipeline blockage.

[0021] Through the above steps, the water-containing gas enters the adapter 7 from the inlet connector 4. When it passes through the microporous baffle 5, the liquid water is separated and falls into the water collection box 2. The gas then enters the drying tube 8 containing the desiccant through the microporous baffle 5. The water in the gas is absorbed by the desiccant. The dried gas is discharged after passing through the microporous membrane 11 and the outlet connector 14. The separation of liquid water by the microporous baffle 5 also prevents the loss of desiccant. The microporous membrane 11 prevents the solid dust of the desiccant from being carried out by the gas and entering the gas pipeline, causing pipeline blockage. This solves the problem that the lower end of the drying tube can mostly only use granular desiccant anhydrous calcium chloride, but cannot use powdered anhydrous magnesium sulfate. Furthermore, since anhydrous calcium chloride deliquesces and forms a paste after absorbing water, it is not easy to replace the calcium chloride after it absorbs water, thus affecting the field use effect. At the same time, the upper end of the drying tube is only blocked by degreased cotton to prevent desiccant dust from entering the gas pipeline and then entering the detection instrument, causing pipeline blockage or abnormal operation of the detection instrument.

Claims

1. A sample gas drying filter cartridge for logging, comprising a drain valve (1), characterized in that: It also includes a transparent water collection box (2), an air inlet connector (4), a microporous baffle (5), a silicone sealing gasket (6), an adapter (7), a transparent drying tube (8), a silicone sealing gasket (2) (10), a microporous membrane (11), an air outlet cover (13), and an air outlet connector (14); a transparent water collection box (2) is fixedly installed on the right side of the drain valve (1), an adapter (7) is provided on the right side of the transparent water collection box (2), and an air inlet connector (4) is provided on the outside of the adapter (7). A microporous baffle (5) is provided on the inner side of the adapter (7). A silicone sealing gasket (6) is provided on the right side of the microporous baffle (5). A transparent drying tube (8) is provided on the right side of the adapter (7). An air outlet cover (13) is provided on the right side of the transparent drying tube (8). A silicone sealing gasket (10) is provided on the inner side of the air outlet cover (13). A microporous membrane (11) is provided on the right side of the silicone sealing gasket (10). An air outlet connector (14) is provided on the right side of the air outlet cover (13).

2. The sample gas drying filter cartridge for logging according to claim 1, characterized in that: The inner sides of the drain valve (1) and the transparent water collection box (2) are connected to each other, the left end of the transparent water collection box (2) and the adapter (7) are connected to each other, and the transparent water collection box (2) and the adapter (7) are sealed together by a sealing ring.

3. The sample gas drying filter cartridge for logging according to claim 1, characterized in that: The inner sides of the air inlet connector (4) and the adapter (7) are connected to each other, and the right end of the adapter (7) is connected to the transparent drying tube (8).

4. The sample gas drying filter cartridge for logging according to claim 1, characterized in that: The inner sides of the microporous baffle (5) and the adapter (7) are engaged with each other through stepped grooves, and the left side of the silicone sealing gasket (6) is tightly fitted with the microporous baffle (5).

5. A sample gas drying filter cartridge for logging according to claim 1, characterized in that: The left end of the transparent drying tube (8) extends to the inside of the adapter (7) and fits tightly with the silicone sealing gasket (6). A desiccant is provided inside the transparent drying tube (8). The right end of the transparent drying tube (8) is connected to the air outlet cap (13).

6. A sample gas drying filter cartridge for logging according to claim 1, characterized in that: The inner sides of the silicone sealing gasket 2 (10) and the vent cap (13) are adapted to each other, and the right end of the transparent drying tube (8) extends to the inner side of the vent cap (13) and fits tightly with the silicone sealing gasket 2 (10).

7. A sample gas drying filter cartridge for logging according to claim 1, characterized in that: The right side of the silicone sealing gasket 2 (10) is tightly fitted to the microporous membrane (11), and the right side of the microporous membrane (11) is tightly fitted to the inside of the vent cap (13) through the sealing ring 2. The vent connector (14) and the inside of the vent cap (13) are connected to each other.

Images