CN105927214A - Accurate measuring device and measuring method for current coal seam gas pressure - Google Patents
Accurate measuring device and measuring method for current coal seam gas pressure Download PDFInfo
- Publication number
- CN105927214A CN105927214A CN201610331584.XA CN201610331584A CN105927214A CN 105927214 A CN105927214 A CN 105927214A CN 201610331584 A CN201610331584 A CN 201610331584A CN 105927214 A CN105927214 A CN 105927214A
- Authority
- CN
- China
- Prior art keywords
- collapsible bag
- points
- inflatable
- eyelet
- inflatable collapsible
- Prior art date
- 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.)
- Granted
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices, or the like
Abstract
The invention discloses an accurate measuring device for the current coal seam gas pressure. The accurate measuring device comprises an expandable capsule bag (1), a quartered steel pipe (7), a high-pressure-resistant polyethylene (PE) air pipe (11), a front guiding device (17), a screen hole pipe (18) and a pressure meter (30). The front guiding device (17), the screen hole pipe (18), the quartered steel pipe (7) and the expandable capsule bag (1) are connected in sequence. Meanwhile, the invention discloses a measuring method adopting the accurate measuring device. According to the accurate measuring device and measuring method, an expansive rapid-hardening cement-based sealing grouting material is used for sealing, the grouting material is compact, rapid-hardening and expandable, fractures, especially top fractures in a coal body on the periphery of a drill hole can be effectively filled, and the effect that the drill hole is sealed tightly is guaranteed; meanwhile, the high-pressure-resistant PE air pipe which is continuous and free of gaps serves as a pressure measuring pipe, and thus gas-leakage channels are almost eliminated; and the two most critical defects of a traditional gas pressure technique and device are overcome through the measuring device and the measuring method, and the measuring device and the measuring method have great popularization value.
Description
Technical field
The present invention relates to a kind of determination of coal seam gas pressure device and method, this coal-bed gas pressure specifically a kind of is accurate
Determinator and assay method, belong to technical field of coal mine.
Background technology
In safety of coal mines is exploited, it is the disaster accident currently causing casualties maximum that coal mine gas highlights accident.Coal
The Accurate Determining of layer gas pressure is to evaluate whether coal seam has the most rational means of outburst hazard, to safety of coal mines to closing
Important.
China's coal-mine fire damp piezometry many employings layer-through drilling is tested at present, traditional gas pressure measurement
Technology success rate in the gas pressure measurement in this coal seam is extremely low.
Studying carefully its main cause, one is that traditional cement mortar does not has swelliong power, in low-angle suitable hole, coal seam
The effective sealing to crack, top cannot be ensured；Its two, coal seam is porous media, can produce under the pressure ring border, ore deposit being continually changing
Many places leakage path；Its three, four points of traditional steel pipes and box cupling be sequentially connected with as pressure-measuring pipe exist junction leak gas serious feelings
Condition.
Summary of the invention
The purpose of the present invention is that provides this coal-bed gas pressure a kind of accurately to measure dress to solve the problems referred to above
Put and assay method, it is possible to this coal-bed gas pressure testing bore holes is carried out strict seal and accurate gas pressure measurement.
The present invention is achieved through the following technical solutions above-mentioned purpose: a kind of this coal-bed gas pressure device for accurately determining,
It includes,
Inflatable collapsible bag, four points of steel pipes, high pressure resistant PE trachea, leading device, antipriming pipe and Pressure gauge；
Described leading device, antipriming pipe, four points of steel pipes, inflatable collapsible bags are sequentially connected with；
Described antipriming pipe top connects high pressure resistant PE trachea by pagoda joint, and high pressure resistant PE trachea is left by inflatable collapsible bag
The eyelet II of termination and inflatable collapsible bag right end runs through inflatable collapsible bag, right end connects pressure by internal thread pagoda joint
Power table is also reinforced with at least one right larynx hoop；
Described four points of steel pipe high order ends have a sheet metal welded, and four points of steel pipe left ends and antipriming pipe closing, right-hand member are passed through
Inflatable collapsible bag left end head and inflatable collapsible bag right end eyelet I run through inflatable collapsible bag, four points of steel pipe ends
Switched by four points of steel pipe Valve controlling；
Wherein, the end face in described inflatable collapsible bag right end has an eyelet III.
The described long 50-100mm of inflatable collapsible bag, has cylinder left end head and the right side of two big rigid plastics materials such as grade
Termination, diameter 40-45mm, a length of 30-50mm；
The inflatable collapsible bag left end head of inflatable collapsible bag and inflatable collapsible bag right end is cylindrical, kernel of section has one
The eyelet II of the eyelet I of individual a diameter of 21mm and not an a diameter of 12mm in the center of circle, inflatable collapsible bag right end cross section
The upper eyelet III also having an a diameter of 6mm.
There are the eyelet IV of 3 a diameter of 6-8mm, hole in the side of the close inflatable collapsible bag right end of described four points of steel pipes
Eye IV position put interior diameter be 20mm thickness be that the resilient rubber tube of 3mm prevents adverse current, four points of steel pipes with
Between eyelet I, seam crossing all uses silica gel to carry out filling sealing.
A diameter of 40-45mm, an a length of 50-on described inflatable collapsible bag left end head and right end outer layer jacket
The latex tubing of 100mm, and the Double-layer polyester material screw thread cloth set of an a diameter of 45-50mm on latex tubing outer layer jacket, use
Latex tubing, Double-layer polyester material screw thread cloth are locked in the inflatable collapsible bag left end head of bundle and right end by left larynx hoop；
Latex tubing and Double-layer polyester material screw thread cloth are enclosed within internal pressure inflatable.
Described high pressure resistant PE tracheal diameter is 8mm, and external diameter is 12mm, and burst pressure is 3MPa, long 30-40m, itself and hole
Between eye II, seam crossing all uses silica gel to carry out filling sealing.
Having a pagoda joint on four points of described antipriming pipes, external diameter is 8mm, and four points of antipriming pipes are carved with at leading device
The sieve aperture of a series of a diameter of 8mm.
A kind of this coal-bed gas pressure accurate measuring method, comprises the following steps:
1) selecting not made a call to deep holing for 25-35 rice by the region of artificial mining influence at pressure measurement objective, aperture is
75mm；
2) in inflatable collapsible bag, inflatable collapsible bag one halfbody is injected by the eyelet III in inflatable collapsible bag right end
Long-pending waterglass, extrudes the eyelet III that inflatable collapsible bag is passed in inflatable collapsible bag right end and discharges inner air
After, use pin and rapid hardening glue to be sealed by eyelet III；
3) by two four points of steel tube couplings, leading device and four points of antipriming pipes and inflatable collapsible bag are sequentially connected with, by resistance to height
Being connected with pagoda joint foremost of pressure PE trachea, and reinforce with right larynx hoop, use gauze outside the sieve aperture of four points of antipriming pipes simultaneously
Parcel；
4) above-mentioned device is sequentially sent in boring, until sending into boring foremost；
5) in inflatable collapsible bag, inject expansion accelerated cement base by four points of steel pipe ends and seal grouting material, make inflatable
Collapsible bag expands, and boring is divided into before and after two sections, treats that grouting pump injection pressure rises to 0.05MPa, and terminate during without flow
Slip casting, and close four points of steel pipe valves, expand the waterglass in accelerated cement base sealing grouting material and inflatable collapsible bag rapid
It is condensed into the inflatable collapsible bag of solid support；
6) at hell, fill in six points of Grouting Pipe of root length 1.0-1.2m, and use chemical pulp plugging material that aperture is close
Obturage reality, expand accelerated cement base by six points of Grouting Pipe and seal and fill to injecting between inflatable collapsible bag and port closing material
Slurry, treats that grouting pump pressure rises to 0.05MPa, and terminates slip casting during without flow, and close six points of six points of Grouting Pipe ends
Grouting Pipe valve；
7) internal thread pagoda joint is connected with Pressure gauge, in internal thread pagoda joint, during connection, first puts into a rubber ring,
Being filled with into a certain amount of silica gel in screw thread, it is strict that Quick fastening guarantees that internal thread pagoda joint and Pressure gauge seal；
8) after waiting 1.5 hours, after expanding accelerated cement base sealing grouting material and expanding and solidify, by internal thread pagoda joint
Pagoda tip side inserts the least significant end of high pressure resistant PE trachea, and uses 2-3 right larynx hoop to tighten in inserting paragraph, completes knot table work
Make, after waiting that pressure gauge reading is stable, read pressure gauge reading, be the relative gas pressure in coal seam, add 0.1MPa i.e.
For absolute gas pressure.
Described expansion accelerated cement base seal grouting material by ordinary cement, calcium sulphoaluminate clinker, Gypsum Fibrosum, Calx,
Mix homogeneously such as air entraining agent, and the stirring that adds water forms, are 5%-20% than solidification front volume expansion rate after solidification, and setting time is
1.5 hour.
The present invention uses expansion accelerated cement base to seal grouting material and seals, and this grouting material is closely knit, rapid hardening, inflatable,
Can the effective especially crack, top, crack in filling borehole periphery coal body, it is ensured that borehole sealing is tight；
Use the high pressure resistant PE trachea of a continuous seamless gap as pressure-measuring pipe simultaneously, almost stop leakage path；
This device and mensuration technique solve the weak point of two most criticals of tradition gas pressure process and device, have pole
Good promotional value.
Accompanying drawing explanation
Fig. 1 is device overall structure schematic diagram in the present invention；
Fig. 2 is inflatable collapsible bag left end head sectional view in the present invention；
Fig. 3 is inflatable collapsible bag right end sectional view in the present invention.
In figure: 1, inflatable collapsible bag, 2, inflatable collapsible bag left end head, 3, inflatable collapsible bag right end, 4, eyelet
I, 5, eyelet II, 6, III, 7, four points of steel pipes of eyelet, 8, eyelet IV, 9, rubber tube, 10, sheet metal, 11, high pressure resistant PE trachea,
12, latex tubing, 13, Double-layer polyester material screw thread cloth set, 14, left larynx hoop, 15, pin, 16, four points of steel tube couplings, 17, leading
Device, 18, antipriming pipe, 19, pagoda joint, 20, right larynx hoop, 21, sieve aperture, 22, gauze, 23, four points of steel pipe ends, 24, four points of steel
Tube valve, 25, six points of Grouting Pipe, 26, chemical pulp plugging material, 27, expand accelerated cement base and seal grouting material, 28, six dispensings
Slurry tube valve, 29, internal thread pagoda joint, 30, Pressure gauge.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not making creative work premise
Embodiment, broadly falls into the scope of protection of the invention.
Wherein, on the basis of accompanying drawing 1, left and right, upper and lower for the present invention of Fig. 1 left and right, upper and lower.
As shown in Figure 1 to Figure 3, a kind of this coal-bed gas pressure device for accurately determining, it includes,
1, four points of steel pipes 7 of inflatable collapsible bag, high pressure resistant PE trachea 11, leading device 17, antipriming pipe 18 and Pressure gauge 30；
Described leading device 17, antipriming pipe 18, four points of steel pipes 7, inflatable collapsible bags 1 are sequentially connected with；
Described antipriming pipe 18 top connects high pressure resistant PE trachea 11 by pagoda joint 19, and high pressure resistant PE trachea 11 is by inflatable
The eyelet II 5 of collapsible bag left end head 2 and inflatable collapsible bag right end 3 runs through inflatable collapsible bag 1, right end passes through internal thread
Pagoda joint 29 connects Pressure gauge 30 and reinforces with at least one right larynx hoop 20；
Described four points of steel pipe 7 high order ends have a sheet metal welded 10, four points of steel pipe 7 left ends and antipriming pipe 18 are closed, right
Hold by inflatable collapsible bag left end head 2 and inflatable collapsible bag right end 3 eyelet I 4 run through inflatable collapsible bag 1, four
Steel pipe end 23 is divided to control switch by four points of steel pipe valves 24；
Wherein, the end face in described inflatable collapsible bag right end 3 has an eyelet III 6.
Wherein, the inflatable long 50-100mm of collapsible bag 1, there is cylinder left end head 2 He of two big rigid plastics materials such as grade
Right end 3, diameter 40-45mm, a length of 30-50mm；
As shown in Figures 2 and 3, the inflatable collapsible bag left end head 2 of inflatable collapsible bag 1 and inflatable collapsible bag right end 3 in
Cylindric, kernel of section has the eyelet I 4 of an a diameter of 21mm and the eyelet II 5 of an or not a diameter of 12mm the center of circle, can
The eyelet III 6 of an a diameter of 6mm is also had on expansion glue pouch right end 3 cross section.
There is the eyelet IV of 3 a diameter of 6-8mm the side of the close inflatable collapsible bag right end 3 of described four points of steel pipes 7
8, eyelet IV 8 position put interior diameter be 20mm thickness be that the resilient rubber tube 9 of 3mm prevents adverse current, four points
Between steel pipe 7 and eyelet I 4, seam crossing all uses silica gel to carry out filling sealing.
A diameter of 40-45mm, an a length of 50-on described inflatable collapsible bag left end head 2 and right end 3 outer layer jacket
The latex tubing 12 of 100mm, and the Double-layer polyester material screw thread cloth set of an a diameter of 45-50mm on latex tubing 12 outer layer jacket
13, use left larynx hoop 14 that latex tubing 12, Double-layer polyester material screw thread cloth set 13 are tightly restrainted inflatable collapsible bag left end head 2 and right-hand member
On 3；
Latex tubing 12 and Double-layer polyester material screw thread cloth set 13 are inflatable under internal pressure.
Described high pressure resistant PE trachea 11 internal diameter is 8mm, and external diameter is 12mm, and burst pressure is 3MPa, long 30-40m, its with
Between eyelet II 5, seam crossing all uses silica gel to carry out filling sealing.
Having a pagoda joint 19 on four points of described antipriming pipes 18, external diameter is 8mm, and four points of antipriming pipes 18 are near leading device
The sieve aperture 21 of a series of a diameter of 8mm it is carved with at 17.
The invention also discloses a kind of this coal-bed gas pressure accurate measuring method, comprise the following steps:
1) selecting not made a call to deep holing for 25-35 rice by the region of artificial mining influence at pressure measurement objective, aperture is
75mm；
2) in inflatable collapsible bag 1, inflatable collapsible bag 1 one is injected by the eyelet III 6 in inflatable collapsible bag right end 3
The waterglass of half volume, extrudes in eyelet III 6 discharge that inflatable collapsible bag 1 is passed in inflatable collapsible bag right end 3
After portion's air, pin 15 and rapid hardening glue is used to be sealed by eyelet III 6；
3) by two four points of steel tube couplings 16, leading device 17 and four points of antipriming pipes 18 and inflatable collapsible bag 1 are sequentially connected with,
By being connected with pagoda joint 19 foremost of high pressure resistant PE trachea 11, and reinforce with right larynx hoop 20, simultaneously four points of antipriming pipes 18
Sieve aperture 21 is outer uses gauze 22 to wrap up；
4) above-mentioned device is sequentially sent in boring, until sending into boring foremost；
5) injecting expansion accelerated cement base in inflatable collapsible bag 1 by four points of steel pipe ends 23 and seal grouting material 27, making can
Expansion glue pouch 1 expands, and boring is divided into before and after two sections, treats that grouting pump injection pressure rises to 0.05MPa, and during without flow
Terminate slip casting, and close four points of steel pipe valves 24, expand accelerated cement base and seal the water in grouting material 27 and inflatable collapsible bag 1
Glass is condensed into rapidly the inflatable collapsible bag of solid support 1；
6) at hell, fill in six points of Grouting Pipe 25 of root length 1.0-1.2m, and use chemical pulp plugging material 26 by hole
Mouth seals tight, by six points of Grouting Pipe 25 to injecting expansion rapid hardening water between inflatable collapsible bag 1 and port closing material 26
Mud base seals grouting material 27, treats that grouting pump pressure rises to 0.05MPa, and terminates slip casting during without flow, and closes six dispensing slurries
Six dispensing slurry tube valves 28 of pipe 25 end；
7) internal thread pagoda joint 29 is connected with Pressure gauge 30, in internal thread pagoda joint 29, during connection, first puts into a rubber
Cushion rubber, is filled with into a certain amount of silica gel in screw thread, and Quick fastening guarantees that internal thread pagoda joint 29 and Pressure gauge 30 seal strictly；
8) after waiting 1.5 hours, after expanding accelerated cement base sealing grouting material 27 and expanding and solidify, by internal thread pagoda joint
The pagoda tip side of 29 inserts the least significant end of high pressure resistant PE trachea 11, and uses 2-3 right larynx hoop 20 to tighten in inserting paragraph, completes
Knot table work, after waiting that pressure gauge reading is stable, reads pressure gauge reading, is the relative gas pressure in coal seam, adds
0.1MPa is absolute gas pressure.
Wherein, above-mentioned expansion accelerated cement base seals grouting material 27 by ordinary cement, calcium sulphoaluminate clinker, stone
Mix homogeneously such as cream, Calx, air entraining agent, and the stirring that adds water forms, are 5%-20% than solidification front volume expansion rate after solidification, solidification
Time is 1.5 hours.
In sum: this employing of the present invention expands accelerated cement base sealing grouting material 27 and seals, and this grouting material is close
Reality, rapid hardening, inflatable, can the effective especially crack, top, crack in filling borehole periphery coal body, it is ensured that borehole sealing is tight；
Use the high pressure resistant PE trachea 11 of a continuous seamless gap as pressure-measuring pipe simultaneously, almost stop leakage path；
This device and mensuration technique solve the weak point of two most criticals of tradition gas pressure process and device, have pole
Good promotional value.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of the spirit or essential attributes of the present invention, it is possible to realize the present invention in other specific forms.Therefore, no matter
From the point of view of which point, all should regard embodiment as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all by fall in the implication of equivalency and scope of claim
Change is included in the present invention.Should not be considered as limiting involved claim by any reference in claim.
Although moreover, it will be appreciated that this specification is been described by according to embodiment, but the most each embodiment only wraps
Containing an independent technical scheme, this narrating mode of description is only that for clarity sake those skilled in the art should
Description can also be formed those skilled in the art through appropriately combined as an entirety, the technical scheme in each embodiment
May be appreciated other embodiments.
Claims (8)
1. this coal-bed gas pressure device for accurately determining, it is characterised in that: it includes,
Inflatable collapsible bag (1), four points of steel pipes (7), high pressure resistant PE trachea (11), leading device (17), antipriming pipes (18) and pressure
Power table (30)；
Described leading device (17), antipriming pipe (18), four points of steel pipes (7), inflatable collapsible bags (1) are sequentially connected with；
Described antipriming pipe (18) top connects high pressure resistant PE trachea (11) by pagoda joint (19), and high pressure resistant PE trachea (11) is led to
Cross the eyelet II (5) of inflatable collapsible bag left end head (2) and inflatable collapsible bag right end (3) run through inflatable collapsible bag (1),
Right end connects Pressure gauge (30) by internal thread pagoda joint (29) and reinforces with at least one right larynx hoop (20)；
Described four points of steel pipe (7) high order ends have a sheet metal welded (10), by four points of steel pipe (7) left ends and antipriming pipe (18)
Close, right-hand member by inflatable collapsible bag left end head (2) and inflatable collapsible bag right end (3) eyelet I (4) run through can be swollen
Swollen collapsible bag (1), four points of steel pipe ends (23) control switch by four points of steel pipe valves (24)；
Wherein, the end face described inflatable collapsible bag right end (3) has an eyelet III (6).
One this coal-bed gas pressure device for accurately determining the most according to claim 1, it is characterised in that: described can be swollen
Swollen collapsible bag (1) long 50-100mm, has cylinder left end head (2) and right end (3), the diameter of two big rigid plastics materials such as grade
40-45mm, a length of 30-50mm；
Inflatable collapsible bag left end head (2) of inflatable collapsible bag (1) and inflatable collapsible bag right end (3) is cylindrical, cut
There are the eyelet I (4) of an a diameter of 21mm and the eyelet II (5) of an or not a diameter of 12mm the center of circle in center, face, inflatable
The eyelet III (6) of an a diameter of 6mm is also had on collapsible bag right end (3) cross section.
One this coal-bed gas pressure device for accurately determining the most according to claim 1 and 2, it is characterised in that: described four
There are the eyelet IV (8) of 3 a diameter of 6-8mm, eyelet IV in the side dividing the close inflatable collapsible bag right end (3) of steel pipe (7)
(8) position put interior diameter be 20mm thickness be that the resilient rubber tube (9) of 3mm prevents adverse current, four points of steel pipes
(7) seam crossing all uses silica gel to carry out filling sealing and between eyelet I (4).
One this coal-bed gas pressure device for accurately determining the most according to claim 1 and 2, it is characterised in that: described
A diameter of 40-45mm, a breast of a length of 50-100mm on inflatable collapsible bag left end head (2) and right end (3) outer layer jacket
Sebific duct (12), and Double-layer polyester material screw thread cloth set (13) of an a diameter of 45-50mm on latex tubing (12) outer layer jacket, make
With left larynx hoop (14) latex tubing (12), Double-layer polyester material screw thread cloth set (13) tightly restrainted inflatable collapsible bag left end head (2) and
In right end (3)；
Latex tubing (12) and Double-layer polyester material screw thread cloth set (13) are inflatable under internal pressure.
One this coal-bed gas pressure device for accurately determining the most according to claim 1 and 2, it is characterised in that: described
High pressure resistant PE trachea (11) internal diameter is 8mm, and external diameter is 12mm, and burst pressure is 3MPa, long 30-40m, its with eyelet II (5) it
Silica gel is all used to carry out filling sealing at seam.
One this coal-bed gas pressure device for accurately determining the most according to claim 1 and 2, it is characterised in that: described
Having a pagoda joint (19) on four points of antipriming pipes (18), external diameter is 8mm, and four points of antipriming pipes (18) dig near leading device (17) place
There is the sieve aperture (21) of a series of a diameter of 8mm.
7. this coal-bed gas pressure accurate measuring method, it is characterised in that comprise the following steps:
1) selecting not made a call to deep holing for 25-35 rice by the region of artificial mining influence at pressure measurement objective, aperture is
75mm；
2) in inflatable collapsible bag (1), inflatable capsule is injected by the eyelet III (6) on inflatable collapsible bag right end (3)
The waterglass of bag (1) half volume, extrudes the hole that inflatable collapsible bag (1) is passed on inflatable collapsible bag right end (3)
After eye III (6) discharges inner air, pin (15) and rapid hardening glue is used to be sealed by eyelet III (6)；
3) by two four points steel tube couplings (16) by leading device (17) and four points of antipriming pipes (18) and inflatable collapsible bag (1)
It is sequentially connected with, by being connected with pagoda joint (19) foremost of high pressure resistant PE trachea (11), and reinforces with right larynx hoop (20), simultaneously
The sieve aperture (21) of four points of antipriming pipes (18) uses outward gauze (22) to wrap up；
4) device described in claim 1 is sequentially sent in boring, until sending into boring foremost；
5) in inflatable collapsible bag (1), inject expansion accelerated cement base by four points of steel pipe ends (23) and seal grouting material
(27), make inflatable collapsible bag (1) expand, boring is divided into before and after two sections, treat that grouting pump injection pressure rises to
0.05MPa, and during without flow, terminate slip casting, and close four points of steel pipe valves (24), expand accelerated cement base and seal grouting material
(27) waterglass and in inflatable collapsible bag (1) is condensed into rapidly the inflatable collapsible bag of solid support (1)；
6) at hell, fill in six points of Grouting Pipe (25) of root length 1.0-1.2m, and use chemical pulp plugging material (26)
Orifice sealing is tight, injected between inflatable collapsible bag (1) and port closing material (26) by six points of Grouting Pipe (25)
Expand accelerated cement base and seal grouting material (27), treat that grouting pump pressure rises to 0.05MPa, and during without flow, terminate slip casting, and
Close six dispensings slurry tube valve (28) of six points of Grouting Pipe (25) ends；
7) internal thread pagoda joint (29) is connected with Pressure gauge (30), first puts in internal thread pagoda joint (29) during connection
One rubber ring, is filled with into a certain amount of silica gel in screw thread, and Quick fastening guarantees internal thread pagoda joint (29) and Pressure gauge
(30) seal strictly；
8), after waiting 1.5 hours, after expanding accelerated cement base sealing grouting material (27) and expanding and solidify, internal thread pagoda is connect
The pagoda tip side of head (29) inserts the least significant end of high pressure resistant PE trachea (11), and uses 2-3 right larynx hoop (20) in inserting paragraph
Tighten, complete the work of knot table, after waiting that pressure gauge reading is stable, read pressure gauge reading, be the relative gas pressure in coal seam,
Add 0.1MPa and be absolute gas pressure.
One this coal-bed gas pressure accurate measuring method the most according to claim 7, it is characterised in that described expansion
Accelerated cement base seals grouting material (27) by mixing such as ordinary cement, calcium sulphoaluminate clinker, Gypsum Fibrosum, Calx, air entraining agents all
Even, and the stirring that adds water forms, is 5%-20% than solidification front volume expansion rate after solidification, setting time is 1.5 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610331584.XA CN105927214B (en) | 2016-05-19 | 2016-05-19 | Method for accurately measuring gas pressure of original coal seam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610331584.XA CN105927214B (en) | 2016-05-19 | 2016-05-19 | Method for accurately measuring gas pressure of original coal seam |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105927214A true CN105927214A (en) | 2016-09-07 |
| CN105927214B CN105927214B (en) | 2022-11-11 |
Family
ID=56840839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610331584.XA Active CN105927214B (en) | 2016-05-19 | 2016-05-19 | Method for accurately measuring gas pressure of original coal seam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105927214B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10794174B2 (en) * | 2017-11-24 | 2020-10-06 | Shandong University Of Science And Technology | Dynamically self-balancing pressurized borehole-sealing apparatus and method thereof for coal seam gas pressure measurement |
Citations (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009109008A1 (en) * | 2008-03-04 | 2009-09-11 | Trouperdale Pty Ltd | Borehole plug with a primary bladder inflation device and a pressure booster |
| CN201412140Y (en) * | 2009-01-13 | 2010-02-24 | 中矿龙科能源科技（北京）有限公司 | Bedding hole coal bed gas pressure measuring device |
| CN102383781A (en) * | 2011-07-15 | 2012-03-21 | 河南理工大学 | Method for measuring gas pressure of coal bed |
| CN102889958A (en) * | 2012-10-30 | 2013-01-23 | 山西潞安矿业(集团)有限责任公司 | Coal bed gas pressure direct measurement device and pressure measurement method thereof |
| CN202869731U (en) * | 2012-10-30 | 2013-04-10 | 山西潞安矿业(集团)有限责任公司 | Device for directly measuring gas pressure in coal seam |
| CN103075149A (en) * | 2013-02-19 | 2013-05-01 | 中国矿业大学 | Method and device for quickly determining gas pressure of coal bed in downward superdeep borehole |
| CN103075148A (en) * | 2013-02-19 | 2013-05-01 | 中国矿业大学 | Method and device for fast measuring coal bed gas pressure through upward remote-distance hole drilling |
| CN203050790U (en) * | 2013-01-22 | 2013-07-10 | 中国矿业大学 | Testing device for predicting coal bed released gas expansion energy |
| CN203145925U (en) * | 2013-02-19 | 2013-08-21 | 中国矿业大学 | Device for quickly measuring coal seam gas pressure by upward remote drilling |
| CN103452522A (en) * | 2013-09-09 | 2013-12-18 | 河南理工大学 | Gas pumping sleeve-penetrating occluder and use method thereof |
| CN103510943A (en) * | 2013-10-29 | 2014-01-15 | 华北科技学院 | Instrument for measuring initial velocity of gas discharged from deep drill hole for coal mine outburst prediction |
| CN103883276A (en) * | 2014-02-18 | 2014-06-25 | 六盘水师范学院 | Simple, economic and efficient coal seam gas drainage drilling hole sealing method |
| CN103953331A (en) * | 2014-04-29 | 2014-07-30 | 河南理工大学 | Self-drilling type in-situ measuring device of coal seam gas pressure |
| CN204152475U (en) * | 2014-10-20 | 2015-02-11 | 山西晋城无烟煤矿业集团有限责任公司 | Layer-through drilling list pouch hole sealing device |
| CN204212733U (en) * | 2014-10-09 | 2015-03-18 | 华北科技学院 | A kind of gun drilling pressure measurement plugging device |
| CN204225875U (en) * | 2014-10-27 | 2015-03-25 | 安徽理工大学 | A kind of Fast Measurement coal-bed gas pressure device |
| CN204511425U (en) * | 2014-11-05 | 2015-07-29 | 中国神华能源股份有限公司 | The determinator of coal-bed gas pressure |
| CN204532410U (en) * | 2015-01-19 | 2015-08-05 | 六盘水师范学院 | The device of sustainable directly monitoring gas discharge drilling sealing effect |
| WO2016019825A1 (en) * | 2014-08-07 | 2016-02-11 | 翟成 | Enhanced phase-change fracking gas extraction method for low-permeability coal bed |
| CN205618152U (en) * | 2016-05-19 | 2016-10-05 | 六盘水师范学院 | This coalbed gas pressure accurate determination device |
-
2016
- 2016-05-19 CN CN201610331584.XA patent/CN105927214B/en active Active
Patent Citations (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009109008A1 (en) * | 2008-03-04 | 2009-09-11 | Trouperdale Pty Ltd | Borehole plug with a primary bladder inflation device and a pressure booster |
| CN201412140Y (en) * | 2009-01-13 | 2010-02-24 | 中矿龙科能源科技（北京）有限公司 | Bedding hole coal bed gas pressure measuring device |
| CN102383781A (en) * | 2011-07-15 | 2012-03-21 | 河南理工大学 | Method for measuring gas pressure of coal bed |
| CN102889958A (en) * | 2012-10-30 | 2013-01-23 | 山西潞安矿业(集团)有限责任公司 | Coal bed gas pressure direct measurement device and pressure measurement method thereof |
| CN202869731U (en) * | 2012-10-30 | 2013-04-10 | 山西潞安矿业(集团)有限责任公司 | Device for directly measuring gas pressure in coal seam |
| CN203050790U (en) * | 2013-01-22 | 2013-07-10 | 中国矿业大学 | Testing device for predicting coal bed released gas expansion energy |
| CN103075149A (en) * | 2013-02-19 | 2013-05-01 | 中国矿业大学 | Method and device for quickly determining gas pressure of coal bed in downward superdeep borehole |
| CN103075148A (en) * | 2013-02-19 | 2013-05-01 | 中国矿业大学 | Method and device for fast measuring coal bed gas pressure through upward remote-distance hole drilling |
| CN203145925U (en) * | 2013-02-19 | 2013-08-21 | 中国矿业大学 | Device for quickly measuring coal seam gas pressure by upward remote drilling |
| CN103452522A (en) * | 2013-09-09 | 2013-12-18 | 河南理工大学 | Gas pumping sleeve-penetrating occluder and use method thereof |
| CN103510943A (en) * | 2013-10-29 | 2014-01-15 | 华北科技学院 | Instrument for measuring initial velocity of gas discharged from deep drill hole for coal mine outburst prediction |
| CN103883276A (en) * | 2014-02-18 | 2014-06-25 | 六盘水师范学院 | Simple, economic and efficient coal seam gas drainage drilling hole sealing method |
| CN103953331A (en) * | 2014-04-29 | 2014-07-30 | 河南理工大学 | Self-drilling type in-situ measuring device of coal seam gas pressure |
| WO2016019825A1 (en) * | 2014-08-07 | 2016-02-11 | 翟成 | Enhanced phase-change fracking gas extraction method for low-permeability coal bed |
| CN204212733U (en) * | 2014-10-09 | 2015-03-18 | 华北科技学院 | A kind of gun drilling pressure measurement plugging device |
| CN204152475U (en) * | 2014-10-20 | 2015-02-11 | 山西晋城无烟煤矿业集团有限责任公司 | Layer-through drilling list pouch hole sealing device |
| CN204225875U (en) * | 2014-10-27 | 2015-03-25 | 安徽理工大学 | A kind of Fast Measurement coal-bed gas pressure device |
| CN204511425U (en) * | 2014-11-05 | 2015-07-29 | 中国神华能源股份有限公司 | The determinator of coal-bed gas pressure |
| CN204532410U (en) * | 2015-01-19 | 2015-08-05 | 六盘水师范学院 | The device of sustainable directly monitoring gas discharge drilling sealing effect |
| CN205618152U (en) * | 2016-05-19 | 2016-10-05 | 六盘水师范学院 | This coalbed gas pressure accurate determination device |
Non-Patent Citations (12)
| Title |
|---|
| LIANG WANG: ""Safety line method for the prediction of deep coal-seam gas pressure and its application in coal mines "", 《SAFETY SCIENCE》 * |
| 任青山，等: ""瓦斯抽采钻孔密封质量的简易监测方法及现场试验"", 《矿业安全与环保》 * |
| 任青山，等: ""自制膨胀材料在发耳煤矿瓦斯抽放钻孔封孔中的应用"", 《煤炭技术》 * |
| 公衍伟，等: ""带压注浆封孔工艺在测定煤层瓦斯压力中的应用"", 《煤矿开采》 * |
| 吴爱军: ""胶囊粘液封孔器在测定煤层高瓦斯压力时失效成因分析"", 《中国安全生产科学技术》 * |
| 张德元，等: ""钻孔煤层瓦斯压力测定"", 《矿山地质灾害成灾机理与防治技术研究与应用》 * |
| 张超，等: ""引入科研成果的瓦斯抽采学创新性课程实践"", 《西部素质教育》 * |
| 白克新，等: ""基于煤层瓦斯压力测定的注浆封孔技术研究"", 《科协论坛(下半月)》 * |
| 蒋云，等: ""胶囊-聚氨酯联合封孔测压技术的研究与应用"", 《中国安全生产科学技术》 * |
| 蒋承林，等: ""下行超深钻孔快速测定煤层瓦斯压力技术"", 《中国煤炭》 * |
| 陈学习，等: ""聚氨酯—胶囊二次注浆封孔测压技术"", 《华北科技学院学报》 * |
| 黄鑫业，蒋承林: ""在岩巷和煤巷中测定煤层瓦斯压力封孔工艺分析"", 《煤矿现代化》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10794174B2 (en) * | 2017-11-24 | 2020-10-06 | Shandong University Of Science And Technology | Dynamically self-balancing pressurized borehole-sealing apparatus and method thereof for coal seam gas pressure measurement |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105927214B (en) | 2022-11-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110080717B (en) | Gas pressure measuring method for rapid hole sealing of horizontal drilling | |
| CN108060903B (en) | Coal-bed gas pressure measures dynamic self-balance pressurization hole sealing device and method | |
| CN103590782B (en) | A kind of mash gas pumping drilling air bag blocks injection hole sealing device with pressure and method | |
| CN103075128B (en) | A kind of method for sealing of mash gas pumping drilling | |
| CN201671588U (en) | Pressure measuring hole sealing apparatus for downward long hole | |
| CN102913184B (en) | Secondary composite high-pressure grouting and sealing process of gas drainage drilling artificial separation barrier | |
| CN105114030A (en) | Gas extraction drilling non-solidification constant-pressure slurry hole sealing method | |
| CN110173231A (en) | To the closely knit hole-sealing pressure measuring device of drilling subsection and method under a kind of long range | |
| CN105696967A (en) | Mining hole packer and hole packing method | |
| CN102383826B (en) | Hole sealer and hole sealing process realized by using same | |
| CN202250166U (en) | Secondary high-pressure grouting hole packer | |
| CN114152510A (en) | Test device and test method for water-rich broken rock stratum moving water grouting reinforcement model | |
| CN111322107A (en) | Secondary grouting plugging device in drilling | |
| CN207920580U (en) | A kind of coal-bed gas pressure fixed test device | |
| CN212130542U (en) | Non-setting constant-pressure slurry bag hole sealing system for gas extraction drill hole | |
| CN205618152U (en) | This coalbed gas pressure accurate determination device | |
| CN109403914A (en) | Water column only starches two fluid grouting method in a kind of down-hole extra-deep hole drilling | |
| CN104389587A (en) | Quick measurement method of coal seam gas pressure | |
| CN105927214A (en) | Accurate measuring device and measuring method for current coal seam gas pressure | |
| CN109162703B (en) | Super-long soft coal seam drilling multi-stage pressure sealing pressure measuring device and method | |
| CN205330611U (en) | Mining hole packer | |
| CN205805503U (en) | Coal mine gas extraction drill hole band pressure grouting rapid hole packer | |
| CN105317397A (en) | Double cloth bags type grouting sealing set and method | |
| CN205558865U (en) | Gas drainage hole sealing slip casting device for coal mine | |
| CN106351603B (en) | A kind of crack or solution cavity severe leakage blocking method and plugging material are sent into pipe string |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |