CN106014390B - Hydraulic pressure-induced plug drilling and water pressure test method - Google Patents
Hydraulic pressure-induced plug drilling and water pressure test method Download PDFInfo
- Publication number
- CN106014390B CN106014390B CN201610485424.0A CN201610485424A CN106014390B CN 106014390 B CN106014390 B CN 106014390B CN 201610485424 A CN201610485424 A CN 201610485424A CN 106014390 B CN106014390 B CN 106014390B
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- test
- pressure
- water
- connecting column
- ejector pin
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 41
- 238000005553 drilling Methods 0.000 title abstract description 10
- 238000010998 test method Methods 0.000 title abstract description 3
- 238000012360 testing method Methods 0.000 claims abstract description 45
- 238000002347 injection Methods 0.000 claims abstract description 8
- 239000007924 injection Substances 0.000 claims abstract description 8
- 238000009434 installation Methods 0.000 claims abstract description 5
- 239000000523 sample Substances 0.000 claims description 17
- 230000035699 permeability Effects 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 13
- 238000010276 construction Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010913 used oil Substances 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
- E21B47/10—Locating fluid leaks, intrusions or movements
- E21B47/117—Detecting leaks, e.g. from tubing, by pressure testing
Landscapes
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Geophysics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention provides a hydraulic plug drilling water pressure test method which comprises the following steps of ① hole forming, ② installation, ③ placement, ④ plug forming, ⑤ water injection, ⑥ water pressure test, ⑦ pressure relief closing and ⑧ test completion, wherein the test work efficiency is improved.
Description
Technical field
The present invention relates to a kind of hydraulic pressure to cause plug water pressure test in borehole method, belongs to engineering construction detection technique field.
Background technique
Water pressure test in borehole is geological prospecting and underground engineering construction detects common method, and working method is to drill certain
A depth segment artificially installs two plugs up and down, then to high pressure water injection is carried out therebetween, after reaching pressure balance, remembers in earth's surface
These record data are finally substituted into corresponding water pressure test in borehole calculation formula, meter by record injection flow, pressure and voltage stabling control
Calculate the leak factor of test section.
Water-pressurizing test method mainly divides a variety of, conventional water pressure test in borehole probes to open with drilling machine because causing plug mode different
Integrally, have single plug and it is double block up first two, be all that blocking is installed on drilling rod, by the cavity in drilling rod to filling in intracavitary note
Water, this method generally carry out during drilling construction, due to interrupting construction, carry out a large amount of drilling rod disassembly and installation,
It is time-consuming and laborious；Simultaneously as leakproofness is poor between drilling rod, chock plug sealing is poor, test accuracy is low.
The double plugs having cause to fill in using oil pressure mode, due to having used oil pressure to cause plug, the more a set of hydraulic oil pipes of system, greatly
The oil pipe of amount brings many inconvenience to on-the-spot test, and operating efficiency is low, is easy to appear card hole accident.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of hydraulic pressure to cause plug water pressure test in borehole method, which is caused
It fills in water pressure test in borehole method and causes plug mode using double plug hydraulic pressure, detection working efficiency can be effectively improved.
The present invention is achieved by the following technical programs.
A kind of hydraulic pressure provided by the invention causes plug water pressure test in borehole method, includes the following steps:
1. pore-creating: completing the probing pore-creating in a hole；
2. installation: it will successively be connected between lower push rod and upper ejector pin with spring end, connecting column is sleeved on outside spring, and
The end of connecting column is sealed with O-ring seal, and lower push rod and upper ejector pin are set with watertight rubber ball in exposing the part outside connecting column,
The end cover of upper ejector pin fills top cap, and packer permeability test instrument pipeline connects aqueduct, thus lower push rod, upper ejector pin, spring, connecting column,
Watertight rubber ball, top cap entirely constitute mounted probe；
3. placing: mounted probe placement being expected depth in probing pore-creating, the power control line of probe is connected, makes
Three-way electrovalve in probe is powered；
4. causing plug: control three-way electrovalve is to cause plug-like state；
5. water filling: opening packer permeability test instrument and water pump, carry out high pressure water injection, after reaching defined pressure value, keep high pressure
Charging state, while controlling three-way electrovalve and being switched to pressure water state；
6. packer permeability test: packer permeability test is carried out, until test is completed；
7. closing pressure release: closing packer permeability test instrument and water pump, control three-way electrovalve is switched to pressure release state；
8. completing test: step is repeated 3. to 7., makes depth of probe relative to preceding 4~10 meters of primary depth when repeating every time,
Sectional Test until completing entire probing pore-creating.
The three-way electrovalve is threeway mutual-locking electric-controlled valve.
The connecting column is sleeved on outside spring, specially connecting column connected with lower push rod internal and external threads, upper ejector pin and connection
The connection of column internal and external threads.
The beneficial effects of the present invention are: detection working efficiency is 1. improved, the present invention is after the probing for completing a hole
It is disposably carried out continuously the test in a hole, each hole section testing time was less than 1 hour；2. improving exploration precision, plug pressure is caused
Foot, pressure holding effect is good, and measuring accuracy is 2 times high compared with drilling machine packer permeability test；3. card hole accident rate is low, entire probe is only with a set of water
Pipe, without oil pipe, adjunct of popping one's head in is few, is convenient for execute-in-place, reduces card hole accident.
Detailed description of the invention
Fig. 1 is flow diagram of the invention；
Fig. 2 is the structural schematic diagram installed in Fig. 1；
Fig. 3 is the schematic diagram of internal structure of upper ejector pin part in Fig. 2；
In figure: 1- top cap, 2- upper ejector pin, the 21- body of rod, 22- rubber ball supporting plate, 23- three-way electrovalve, 24- aqueduct,
25- water outlet, 3- connecting column, 4- lower push rod, 5- spring, 6- watertight rubber ball.
Specific embodiment
Be described further below technical solution of the present invention, but claimed range be not limited to it is described.
A kind of hydraulic pressure as shown in Figure 1 causes plug water pressure test in borehole method, includes the following steps:
1. pore-creating: completing the probing pore-creating in a hole；
2. installation: successively 5 end of spring will be used to connect between lower push rod 4 and upper ejector pin 2 as shown in Figure 2, connecting column 3 is set with
It is sealed outside spring 5, and in the end of connecting column 3 with O-ring seal, lower push rod 4 and upper ejector pin 2 are in outside exposing connecting column 3
Part suit watertight rubber ball 6, the end cover of upper ejector pin 2 fill top cap 1, and packer permeability test instrument pipeline connects aqueduct 24, thus under
Mandril 4, upper ejector pin 2, spring 5, connecting column 3, watertight rubber ball 6, top cap 1 entirely constitute mounted probe；
3. placing: mounted probe placement being expected depth in probing pore-creating, the power control line of probe is connected, makes
Three-way electrovalve 23 in probe is powered；
4. causing plug: control three-way electrovalve 23 is to cause plug-like state；
5. water filling: opening packer permeability test instrument and water pump, carry out high pressure water injection, water flow enters from aqueduct 24, into the body of rod
Enhance the internal pressure of probe in 21, due to the effect of rubber ball supporting plate 22 and watertight rubber ball 6, upper ejector pin 2 and lower push rod 4 will not
Excessive movement is generated because internal pressure increases, after reaching defined pressure value, keeps high pressure water injection state, while controlling threeway electronics
Valve 23 is switched to pressure water state, flows out to water flow in drilling from water outlet 25；
6. packer permeability test: packer permeability test is carried out, until test is completed；
7. closing pressure release: closing packer permeability test instrument and water pump, control three-way electrovalve 23 is switched to pressure release state, makes water flow
It is discharged by aqueduct 24；
8. completing test: step is repeated 3. to 7., makes depth of probe relative to preceding 4~10 meters of primary depth when repeating every time,
Sectional Test until completing entire probing pore-creating.
As shown in figure 3, the three-way electrovalve 23 is threeway mutual-locking electric-controlled valve.
The connecting column 3 is sleeved on outside spring 5, specially connecting column 3 connected with 4 internal and external threads of lower push rod, 2 and of upper ejector pin
The connection of 3 internal and external threads of connecting column.
Claims (3)
1. a kind of hydraulic pressure causes plug water pressure test in borehole method, characterized by the following steps:
1. pore-creating: completing the probing pore-creating in a hole；
2. installation: successively spring (5) end will be used to connect between lower push rod (4) and upper ejector pin (2), connecting column (3) is sleeved on bullet
Spring (5) outside, and is sealed in the end of connecting column (3) with O-ring seal, and lower push rod (4) and upper ejector pin (2) are in exposing connecting column
(3) part outside is set with watertight rubber ball (6), and the end cover of upper ejector pin (2) fills top cap (1), and the connection of packer permeability test instrument pipeline is defeated
Water channel (24), the body of rod (21) that aqueduct (24) is set to upper ejector pin (2) is internal, and through the body of rod (21), thus lower push rod
(4), upper ejector pin (2), spring (5), connecting column (3), watertight rubber ball (6), top cap (1) entirely constitute mounted probe；
3. placing: mounted probe placement being expected depth in probing pore-creating, the power control line of probe is connected, makes to pop one's head in
In three-way electrovalve (23) be powered；
4. causing plug: control three-way electrovalve (23) is to cause plug-like state；
5. water filling: opening packer permeability test instrument and water pump, carry out high pressure water injection, after reaching defined pressure value, keep high pressure water injection
State, while controlling three-way electrovalve (23) and being switched to pressure water state；
6. packer permeability test: packer permeability test is carried out, until test is completed；
7. closing pressure release: closing packer permeability test instrument and water pump, control three-way electrovalve (23) is switched to pressure release state；
8. completing test: step is repeated 3. to 7., makes depth of probe relative to preceding 4~10 meters of primary depth when repeating every time, until
Complete the Sectional Test of entire probing pore-creating.
2. hydraulic pressure as described in claim 1 causes plug water pressure test in borehole method, it is characterised in that: the three-way electrovalve (23)
It is threeway mutual-locking electric-controlled valve.
3. hydraulic pressure as described in claim 1 causes plug water pressure test in borehole method, it is characterised in that: connecting column (3) suit
Spring (5) outside, specially connecting column (3) connected with lower push rod (4) internal and external threads, spiral shell inside and outside upper ejector pin (2) and connecting column (3)
Line connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610485424.0A CN106014390B (en) | 2016-06-28 | 2016-06-28 | Hydraulic pressure-induced plug drilling and water pressure test method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610485424.0A CN106014390B (en) | 2016-06-28 | 2016-06-28 | Hydraulic pressure-induced plug drilling and water pressure test method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106014390A CN106014390A (en) | 2016-10-12 |
| CN106014390B true CN106014390B (en) | 2019-03-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610485424.0A Active CN106014390B (en) | 2016-06-28 | 2016-06-28 | Hydraulic pressure-induced plug drilling and water pressure test method |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110018103B (en) * | 2019-04-25 | 2021-08-03 | 江西理工大学 | Building foundation on-site penetration test device and test method thereof |
Citations (6)
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|---|---|---|---|---|
| CN201671622U (en) * | 2010-05-07 | 2010-12-15 | 西安科技大学 | Coal mine cover rock water guide slit band uphole observation instrument |
| CN201965246U (en) * | 2011-03-17 | 2011-09-07 | 黄河勘测规划设计有限公司 | Special hydraulic water test plug for rope coring drilling without hoisting |
| CN202039837U (en) * | 2011-04-07 | 2011-11-16 | 中国水电顾问集团华东勘测设计研究院 | Device for water pressure test in wire line coring borehole under condition of no drilling |
| CN103939077A (en) * | 2014-05-04 | 2014-07-23 | 山东科技大学 | Perforation fracturing permeability-improvement method for high-stress low-porosity coal seam |
| CN105003224A (en) * | 2015-07-23 | 2015-10-28 | 江苏中煤矿山设备有限公司 | Two-section type hole packer and core drilling process of two-section type hole packer |
| CN105675470A (en) * | 2016-03-01 | 2016-06-15 | 长江岩土工程总公司（武汉） | Method for performing pump-in test by adopting sliding hydraulic rubber plug water plugging device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8985227B2 (en) * | 2011-01-10 | 2015-03-24 | Schlumberger Technology Corporation | Dampered drop plug |
-
2016
- 2016-06-28 CN CN201610485424.0A patent/CN106014390B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201671622U (en) * | 2010-05-07 | 2010-12-15 | 西安科技大学 | Coal mine cover rock water guide slit band uphole observation instrument |
| CN201965246U (en) * | 2011-03-17 | 2011-09-07 | 黄河勘测规划设计有限公司 | Special hydraulic water test plug for rope coring drilling without hoisting |
| CN202039837U (en) * | 2011-04-07 | 2011-11-16 | 中国水电顾问集团华东勘测设计研究院 | Device for water pressure test in wire line coring borehole under condition of no drilling |
| CN103939077A (en) * | 2014-05-04 | 2014-07-23 | 山东科技大学 | Perforation fracturing permeability-improvement method for high-stress low-porosity coal seam |
| CN105003224A (en) * | 2015-07-23 | 2015-10-28 | 江苏中煤矿山设备有限公司 | Two-section type hole packer and core drilling process of two-section type hole packer |
| CN105675470A (en) * | 2016-03-01 | 2016-06-15 | 长江岩土工程总公司（武汉） | Method for performing pump-in test by adopting sliding hydraulic rubber plug water plugging device |
Non-Patent Citations (1)
| Title |
|---|
| 钻孔压水试验水压式栓塞排水泄压问题研究;裴熊伟;《探矿工程（岩土钻掘工程）》;20160331;第43卷(第3期);56-59 |
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| CN106014390A (en) | 2016-10-12 |
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