CN116498298A - Drilling pressurized water test device and method - Google Patents
Drilling pressurized water test device and method Download PDFInfo
- Publication number
- CN116498298A CN116498298A CN202310426051.XA CN202310426051A CN116498298A CN 116498298 A CN116498298 A CN 116498298A CN 202310426051 A CN202310426051 A CN 202310426051A CN 116498298 A CN116498298 A CN 116498298A
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- water stop
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 196
- 238000012360 testing method Methods 0.000 title claims abstract description 85
- 238000005553 drilling Methods 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 9
- 238000003825 pressing Methods 0.000 claims description 11
- 238000003860 storage Methods 0.000 claims description 10
- 239000013013 elastic material Substances 0.000 claims description 3
- 238000010998 test method Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 5
- 239000011435 rock Substances 0.000 abstract description 4
- 238000011835 investigation Methods 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention relates to the technical field of engineering geological investigation, and particularly discloses a drilling water pressure test device which comprises a drill rod and a water pressure system, wherein one end of the drill rod is connected with the water pressure system, the other end of the drill rod is provided with a rock core pipe, the drill rod is formed by splicing a plurality of detachable rod bodies, a first water stop section and a second water stop section are detachably and fixedly arranged in the middle of the drill rod, each of the first water stop section and the second water stop section comprises a telescopic pipe, a water stop plug and a limiting piece, and a plurality of water outlets are formed in the telescopic pipe. The invention also discloses a drilling water pressure test method. The drilling water pressure test device and method can accurately determine the position of the test section, and the test device has the advantages of simple structure, convenience in operation, good water stopping effect and low failure rate.
Description
Technical Field
The invention relates to the technical field of engineering geological investigation, in particular to a drilling pressurized water test device and method.
Background
The drilling water pressure test is an in-situ test for calculating and knowing the crack development condition and the water permeability of the rock mass of the test section by pressing water into the drilling test section in a high-pressure mode on the premise of plugging the test section.
The water stopping method adopted in the domestic water pressure test at present mainly enables the water stopping plug or the capsule to laterally expand and passively block water under the external co-pressure conditions such as water pressure, air pressure and the like.
The pressurized water test requires that each test section is mutually connected and is not allowed to leak test, so that the accurate positioning of the position of the test section is important, the position of the test section is determined by adopting a preset plug or an air bag in China at present, the accuracy is not high, and the plug or the air bag can slide under the action of external pressure in the test process, so that the position of the test section is changed, and the test result is influenced.
Disclosure of Invention
The invention aims to solve at least one of the technical problems, and provides a drilling pressurized water test device and a drilling pressurized water test method, which can accurately determine the position of a test section, and the test device has the advantages of simple structure, convenient operation, good water stopping effect and low failure rate.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: the utility model provides a drilling pressurized-water test device, including drilling rod and pressurized-water system, the one end and the pressurized-water system of drilling rod are connected, the other end is provided with the rock core pipe, the drilling rod is formed through the concatenation of many detachable body of rod, the middle part detachable fixed mounting of drilling rod has first stagnant water section and second stagnant water section, first stagnant water section and second stagnant water section all include flexible pipe, stagnant water stopper and spacing piece, a plurality of apopores have been seted up on the flexible pipe, the stagnant water stopper is made by elastic material and the suit is on flexible pipe, spacing piece fixed mounting is on flexible pipe, and can spacing the upward movement of stagnant water stopper along flexible pipe, the lower extreme of stagnant water stopper can be with flexible pipe butt, so that flexible pipe can compress the stagnant water stopper when the shrink, spacing piece on the first stagnant water section is hollow setting, so that the internal passage of flexible pipe switches on, spacing piece on the second stagnant water section is solid setting, so as to seal the internal passage of flexible pipe.
Preferably, the water pressing system comprises a water supply pipeline, a pump body, a flowmeter and a pressure gauge which are arranged on the water supply pipeline, one end of the water supply pipeline is communicated with the drill rod, and the other end of the water supply pipeline is connected with the water storage device.
Preferably, the water supply system further comprises a pressure relief pipeline and a pressure relief valve arranged on the pressure relief pipeline, one end of the pressure relief pipeline is connected with the water supply pipeline, and the other end of the pressure relief pipeline is connected with the water storage device.
Preferably, the upper end of the drill rod is connected with a driving system for controlling the telescopic adjustment of the telescopic pipe.
Preferably, the two ends of the telescopic pipe are respectively provided with a threaded connection part for detachable fixed connection.
Preferably, the telescopic pipe comprises a first pipe body and a second pipe body, the outer diameter of the first pipe body is larger than that of the second pipe body, the lower end of the second pipe body is inserted into the first pipe body through a connecting hole at the upper end of the first pipe body and is in sliding fit with the first pipe body, and the lower end of the water stop plug can be in butt fit with the upper end of the first pipe body.
Preferably, the second pipe body comprises a first connecting section and a second connecting section which are detachably and fixedly connected, the limiting piece is fixedly arranged on the first connecting section, the water stop plug is sleeved on the first connecting section, and the second connecting section is in sliding fit with the first pipe body.
Preferably, the inner wall of the first pipe body is provided with a limit groove, and the outer wall of the second pipe body is provided with a limit convex strip which is in sliding fit with the limit groove.
The application also discloses a drilling pressurized water test method, which adopts the drilling pressurized water test device and comprises the following steps:
(1) After drilling is completed, determining the position of the test section;
(2) Splicing the drill rods according to the positions of the test sections, only installing a first water stop section on the drill rods when the positions of the test sections are positioned at the bottom of the drill holes, installing the first water stop section and a second water stop section on the drill rods when the positions of the test sections are positioned at the middle of the drill holes, and adjusting the heights of the test sections according to the splicing quantity of the drill rods;
(3) Placing the drill rod into the drill hole, and enabling the core barrel to be in contact with the bottom of the drill hole;
(4) The drill rod is pressurized downwards, so that the upper end and the lower end of the water stop plug are extruded to expand to the side part until the side part of the water stop plug is completely attached to the hole wall for sealing so as to seal the test section;
(5) And supplying water to the test section through a water pressing system, and performing a water pressing test.
The beneficial effects are that: compared with the prior art, the drilling water pressure test device and the drilling water pressure test method have the advantages that the rod bodies formed by detachably splicing the plurality of rod bodies are adopted, the first water stop section and the second water stop section are detachably and fixedly arranged on the rod bodies, the position of the test section can be flexibly adjusted according to test requirements, meanwhile, the telescopic pipe structure is adopted, the telescopic pipe is sleeved with the water stop plug, the water stop plug can be compressed by pressing the telescopic pipe, the water stop plug can be in sealing fit with the wall of a drilling hole, the test section is sealed, sliding is difficult to occur between the water stop plug and the wall of the hole, the position of the test section can be accurately determined, and the whole device is simple in structure, convenient to operate, good in water stop effect and low in failure rate.
Drawings
The invention is described in further detail below with reference to the attached drawing figures, wherein:
FIG. 1 is a schematic view of a borehole water pressure testing apparatus according to one embodiment of the present invention;
FIG. 2 is a schematic view of another embodiment of a borehole water pressure testing apparatus of the present invention;
FIG. 3 is a schematic diagram of a connection structure of the first water stop segment or the second water stop segment;
FIG. 4 is a schematic view of a sliding fit of a first tube and a second tube;
FIG. 5 is a schematic view of the structure of the first pipe body;
fig. 6 is an exploded view of the second tube.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present, as well as being disposed not only in an intermediate position but also in both ends as far as they are within the scope defined by the intermediate position. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1 to 6, a drilling water pressure test device comprises a drill rod 1 and a water pressure system 2, one end of the drill rod 1 is connected with the water pressure system 2, the other end is provided with a rock core pipe 3, the drill rod 1 is formed by splicing a plurality of detachable rod bodies, a first water stop section 4 and a second water stop section 5 are fixedly arranged in the middle of the drill rod 1, each of the first water stop section 4 and the second water stop section 5 comprises a telescopic pipe 6, a water stop plug 7 and a limiting piece 8, a plurality of water outlet holes 9 are formed in the telescopic pipe 6, the water stop plug 7 is made of elastic materials and sleeved on the telescopic pipe 6, the limiting pieces 8 are fixedly arranged on the telescopic pipe 6, the water stop plug 7 can be limited along the upward movement of the telescopic pipe 6, the lower end of the water stop plug 7 can be abutted with the telescopic pipe 6, so that the limiting pieces 8 and the telescopic pipe 6 can compress the water stop plug 7 when the telescopic pipe 6 is contracted, the limiting pieces 8 on the first water stop section 4 are arranged in a hollow mode, so that the internal channels of the telescopic pipe 6 are conducted, and the limiting pieces 8 on the second water stop section 5 are arranged in a solid mode, and the internal channels of the telescopic pipe 6 can be sealed.
According to the drilling water pressure test device, the rod bodies formed by detachably splicing the rod bodies are detachably and fixedly provided with the first water stop section 4 and the second water stop section 5, the length of the drill rod 1 and the installation positions of the first water stop section 4 and the second water stop section 5 can be flexibly adjusted according to test requirements, so that the positions of test sections are adjusted, meanwhile, the telescopic pipe 6 is adopted, the telescopic pipe 6 is sleeved with the water stop plug 7, the water stop plug 7 can be compressed by pressing the telescopic pipe 6, the water stop plug 7 can be in sealing fit with the wall of a drilling hole to seal the test sections, sliding between the water stop plug 7 and the wall of the hole is difficult to occur, the position of the test section can be accurately determined, and the whole device is simple in structure, convenient to operate, good in water stop effect and low in failure rate.
In one specific embodiment, the water pressing system 2 may include a water supply pipe 10, and a pump body 11, a flow meter 12 and a pressure gauge 13 mounted on the water supply pipe 10, wherein one end of the water supply pipe 10 is communicated with the drill pipe 1, and the other end is connected with a water storage device 14. Specifically, the water storage device 14 may be a water storage tank, the pump body 11 is used for conveying water in the water storage tank to the test section, the flowmeter 12 is used for measuring the water quantity flowing into the test section, and the pressure gauge 13 is used for measuring the water pressure in the test section. The water supply system further comprises a pressure relief pipeline 15 and a pressure relief valve 16 arranged on the pressure relief pipeline 15, one end of the pressure relief pipeline 15 is connected with the water supply pipeline 10, and the other end of the pressure relief pipeline 15 is connected with the water storage device 14.
Further, the water supply system can further comprise a pressure relief pipeline 15 and a pressure relief valve 16 arranged on the pressure relief pipeline 15, one end of the pressure relief pipeline 15 is connected with the water supply pipeline 10 through a three-way valve, the other end of the pressure relief pipeline 15 is connected with the water storage device 14, and when the water pressure in the water supply pipeline 10 is large, a part of water flow can be split through the pressure relief pipeline 15, so that the water flow pressure entering the drill rod 1 is reduced, and the water pressure of a test section is reduced.
Furthermore, a driving system 17 for controlling the telescopic adjustment of the telescopic pipe 6 can be connected to the upper end of the drill rod 1, the driving system 17 can be of a hydraulic driving structure, the driving system 17 is connected with the water supply pipeline 10 through a hose, and a downward pressure can be provided for the drill rod 1 through the driving system 17 so as to apply pressure to the telescopic pipe 6, so that the water stop plug 7 is compressed.
In a preferred embodiment, two ends of the telescopic pipe 6 can be respectively provided with a threaded connection part 18 for detachable fixed connection, and the detachable fixed connection among the first water stop section 4, the second water stop section 5 and the drill rod 1 is realized through the threaded connection part 18, so that the disassembly and the assembly in the testing process are convenient, and the operation is convenient.
In one specific embodiment, the telescopic tube 6 may include a first tube body 19 and a second tube body 20, the outer diameter of the first tube body 19 is larger than the outer diameter of the second tube body 20, the lower end of the second tube body 20 is inserted into the first tube body 19 through a connecting hole at the upper end of the first tube body 19 and is slidably matched with the first tube body 19, and the telescopic tube 6 is adjusted by driving the second tube body 20 to move relative to the first tube body 19, and the lower end of the water stop plug 7 can be in butt fit with the upper end of the first tube body 19 in the downward movement process of the second tube body 20, so that when the telescopic tube 6 is contracted, the limiting piece 8 and the end of the first tube body 19 can be matched to compress the water stop plug 7. Preferably, the water stop plug 7 can be a rubber plug and is in a circular ring shape, so that the water stop plug 7 is conveniently sleeved on the second pipe body 20, specifically, the limiting piece 8 on the first water stop section 4 can also be in a circular ring shape, and the limiting piece 8 on the second water stop section 5 is in a solid circular ring shape.
Further, the second pipe body 20 comprises a first connecting section 23 and a second connecting section 24 which are detachably and fixedly connected, specifically, the first connecting section 23 and the second connecting section 24 can be detachably and fixedly connected through threaded fit, the limiting piece 8 can be fixedly installed on the first connecting section 23 in a welding mode, the water stop plug 7 is sleeved on the first connecting section 23, one end, far away from the first connecting section 23, of the second connecting section 24 can extend into the first pipe body 19 and is in sliding fit with the first pipe body 19, and the second pipe body 20 is formed by detachably splicing the first connecting section 23 and the second connecting section 24, so that the water stop plug 7 is convenient to install.
In a more preferred embodiment, the inner wall of the first pipe body 19 may be provided with a limit groove 21, the outer wall of the second pipe body 20 is provided with a limit convex strip 22 slidingly engaged with the limit groove 21, and the rotation of the first pipe body 19 relative to the second pipe body 20 can be limited by slidingly engaging the limit convex strip 22 with the limit groove 21, so that the whole drill pipe 1 can synchronously rotate, so that the drill pipe 1 can be rotated and lifted when the drill is stuck. Specifically, the limiting protruding strip 22 may be disposed at an end of the second connecting section 24 away from the first connecting section 23, and for facilitating installation of the second connecting section 24, an end of the first pipe body 19 away from the second pipe body 20 may be provided with a pipe cap 25, where the pipe cap 25 is detachably and fixedly connected with the first pipe body 19 through screw fit.
The application also discloses a drilling pressurized water test method, which adopts the drilling pressurized water test device and comprises the following steps:
(1) After drilling is completed, determining the position of the test section;
(2) Splicing the drill rod 1 according to the position of the test section, when the position of the test section is positioned at the bottom of a drill hole, only installing the first water stop section 4 on the drill rod 1, constructing a test section between the first water stop section 4 and the bottom of the drill hole, when the position of the test section is positioned at the middle of the drill hole, installing the first water stop section 4 and the second water stop section 5 on the drill rod 1, constructing a test section between the first water stop section 4 and the second water stop section 5, and adjusting the height of the test section according to the splicing quantity of the drill rod 1;
(3) Placing the drill rod 1 into a drill hole, and enabling the core barrel 3 to be in contact with the bottom of the drill hole;
(4) The drill rod 1 is pressurized downwards, so that the upper end and the lower end of the water stop plug 7 are extruded to expand to the side part until the side part of the water stop plug 7 is completely attached and sealed with the hole wall, and the test section is closed;
(5) The water is supplied to the test section through the water pressure system 2, and a water pressure test is performed.
According to the drilling water pressure test method, the rod bodies formed by detachably splicing the plurality of rod bodies are detachably and fixedly provided with the first water stop section 4 and the second water stop section 5, the length of the drill rod 1 and the installation positions of the first water stop section 4 and the second water stop section 5 can be flexibly adjusted according to test requirements, so that the positions of the test sections are adjusted, meanwhile, the telescopic pipe 6 is adopted, the telescopic pipe 6 is sleeved with the water stop plug 7, the water stop plug 7 can be compressed by pressing the telescopic pipe 6, the water stop plug 7 can be in sealing fit with the wall of a drilling hole to seal the test sections, sliding between the water stop plug 7 and the wall of the hole is difficult to occur, the position of the test section can be accurately determined, and the whole drilling water pressure test method is simple in structure, convenient to operate, good in water stop effect and low in failure rate.
The above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and any modifications or equivalent substitutions without departing from the spirit and scope of the present invention should be covered in the scope of the technical solution of the present invention.
Claims (9)
1. The utility model provides a drilling pressurized-water test device, including drilling rod (1) and pressurized-water system (2), a serial communication port, the one end and the pressurized-water system (2) of drilling rod (1) are connected, the other end is provided with core pipe (3), drilling rod (1) are spliced through many detachable body of rod and are formed, the middle part detachable fixed mounting of drilling rod (1) has first stagnant water section (4) and second stagnant water section (5), first stagnant water section (4) and second stagnant water section (5) all include flexible pipe (6), stagnant water stopper (7) and spacing piece (8), a plurality of apopores (9) have been seted up on flexible pipe (6), stagnant water stopper (7) are made by elastic material and the suit is on flexible pipe (6), spacing piece (8) fixed mounting is on flexible pipe (6), and can be spacing to the upward movement of stagnant water stopper (7) along flexible pipe (6), the lower extreme of stagnant water stopper (7) can be with flexible pipe (6) butt, so that flexible pipe (6) when shrink, spacing piece (8) and flexible pipe (6) can carry out to seal up to first section (4) and compress to spacing piece (8), setting up for spacing piece (8) inside the passageway (5), so as to be able to close the internal passage of the telescopic tube (6).
2. Drilling water pressure test device according to claim 1, characterized in that the water pressure system (2) comprises a water supply pipeline (10), a pump body (11), a flowmeter (12) and a pressure gauge (13) which are arranged on the water supply pipeline (10), wherein one end of the water supply pipeline (10) is communicated with the drill rod (1), and the other end is connected with a water storage device (14).
3. Drilling water pressure test device according to claim 2, characterized in that the water supply system further comprises a pressure relief pipeline (15) and a pressure relief valve (16) arranged on the pressure relief pipeline (15), wherein one end of the pressure relief pipeline (15) is connected with the water supply pipeline (10), and the other end is connected with the water storage device (14).
4. Drilling water pressure test device according to claim 1, characterized in that the upper end of the drill rod (1) is connected with a drive system (17) for controlling the telescopic adjustment of the telescopic tube (6).
5. Drilling water pressure test device according to claim 1, characterized in that the two ends of the telescopic tube (6) are respectively provided with a threaded connection (18) for detachable fixed connection.
6. The drilling and water pressure test device according to claim 1, wherein the telescopic tube (6) comprises a first tube body (19) and a second tube body (20), the outer diameter of the first tube body (19) is larger than that of the second tube body (20), the lower end of the second tube body (20) is inserted into the first tube body (19) through a connecting hole at the upper end of the first tube body (19) and is in sliding fit with the first tube body (19), and the lower end of the water stop plug (7) can be in abutting fit with the upper end of the first tube body (19).
7. The drilling pressurized-water testing device according to claim 6, wherein the second pipe body (20) comprises a first connecting section (23) and a second connecting section (24) which are detachably and fixedly connected, the limiting piece (8) is fixedly arranged on the first connecting section (23), the water stop plug (7) is sleeved on the first connecting section (23), and the second connecting section (24) is in sliding fit with the first pipe body (19).
8. The drilling and water pressing test device according to claim 6, wherein the inner wall of the first pipe body (19) is provided with a limit groove (21), and the outer wall of the second pipe body (20) is provided with a limit convex strip (22) in sliding fit with the limit groove (21).
9. A method of borehole water pressure testing according to claim 1, characterized by using a borehole water pressure testing apparatus according to any one of claims 1-8, comprising the steps of:
(1) After drilling is completed, determining the position of the test section;
(2) Splicing the drill rod (1) according to the position of the test section, only installing the first water stop section (4) on the drill rod (1) when the position of the test section is positioned at the bottom of a drill hole, installing the first water stop section (4) and the second water stop section (5) on the drill rod (1) when the position of the test section is positioned at the middle of the drill hole, and adjusting the height of the test section according to the splicing quantity of the drill rod (1);
(3) Placing the drill rod (1) into a drill hole, and enabling the core barrel (3) to be in contact with the bottom of the drill hole;
(4) The drill rod (1) is pressurized downwards, so that the upper end and the lower end of the water stop plug (7) are extruded to expand to the side part until the side part of the water stop plug (7) is completely attached and sealed with the hole wall to seal the test section;
(5) And supplying water to the test section through a water pressing system (2) to perform a water pressing test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310426051.XA CN116498298A (en) | 2023-04-20 | 2023-04-20 | Drilling pressurized water test device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310426051.XA CN116498298A (en) | 2023-04-20 | 2023-04-20 | Drilling pressurized water test device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116498298A true CN116498298A (en) | 2023-07-28 |
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ID=87319563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310426051.XA Pending CN116498298A (en) | 2023-04-20 | 2023-04-20 | Drilling pressurized water test device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116498298A (en) |
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2023
- 2023-04-20 CN CN202310426051.XA patent/CN116498298A/en active Pending
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