CN109162695A - A kind of deep hole packer permeability test device - Google Patents
A kind of deep hole packer permeability test device Download PDFInfo
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- CN109162695A CN109162695A CN201811025529.3A CN201811025529A CN109162695A CN 109162695 A CN109162695 A CN 109162695A CN 201811025529 A CN201811025529 A CN 201811025529A CN 109162695 A CN109162695 A CN 109162695A
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- 238000012360 testing method Methods 0.000 title claims abstract description 76
- 230000035699 permeability Effects 0.000 title claims abstract description 52
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 129
- 208000005189 Embolism Diseases 0.000 claims abstract description 94
- 239000002775 capsule Substances 0.000 claims abstract description 56
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 23
- 238000007789 sealing Methods 0.000 claims abstract description 17
- 238000005553 drilling Methods 0.000 claims description 50
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 28
- 239000003292 glue Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 45
- 230000008569 process Effects 0.000 abstract description 36
- 238000011835 investigation Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 2
- 108091006146 Channels Proteins 0.000 description 39
- 230000010102 embolization Effects 0.000 description 15
- 102000010637 Aquaporins Human genes 0.000 description 10
- 230000000694 effects Effects 0.000 description 9
- 238000013461 design Methods 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 108010063290 Aquaporins Proteins 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000693 micelle Substances 0.000 description 2
- 238000011017 operating method Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005194 fractionation Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000001568 sexual effect Effects 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 239000000725 suspension 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- 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 present invention relates to the water pressure test in borehole in engineering geological investigation, more particularly, to a kind of deep hole packer permeability test device.The experimental rig, including reducer union, piston component, check valve assembly and embolism capsule body, pass through two independences and can open or close in due course, the water stream channel converted in due course, both can implement to press water inflation embolism capsule process in advance, in due course non-return valve function then can be realized by simple operations, closing pressure water inflation capsule water channel simultaneously forms the guarantee of high pressure enclosed area and keeps embolism sealing performance, change water stream channel path together simultaneously to test section water outlet, can continue to implement packer permeability test process.Can save to aim in existing method in this way presses water inflation embolism provisioned and the high service pipeline of the another set of high pressure charging pump used and complete opening length.Equipment and material needed for reducing configures and reduces cost, simplifies operation.
Description
Technical field
The present invention relates to the water pressure test in borehole in engineering geological investigation, fill more particularly, to a kind of deep hole packer permeability test
It sets.
Background technique
Water pressure test in borehole is the important process content that rock stratum hydrogeologic data is obtained in engineering geological investigation.
" general every 5 metre hole implements one section of packer permeability test to packer permeability test regulatory requirements deeply；Preferably use hydraulic type or vapour-pressure type bolt
Plug ".Engineering geological investigation produces unit when selecting water pressure test in borehole technical solution, according to the type of exerciser embolism and its
Applicable elements, general shallow bore hole mostly use mechanical roof pressing type embolization, and deep hole mostly uses hydraulic type or vapour-pressure type embolization；Due to adopting
A set of high-pressure inflating pump or high pressure gas holder need to be further provided with as air supply source by using vapour-pressure type embolization, from reducing testing equipment to the greatest extent
Equipment configuration and site safety sexual factor contemplate hair, most widely used at present to the rare selection substantially of vapour-pressure type embolization
Be mostly hydraulic type embolization technical solution.Engineering geological investigation deep drilling technology can be divided into two major classes by boring means:
Conventional drilling tool Drilling Method, rope drilling tool Drilling Method.The water pressure test in borehole technical solution of these two types of drilling methods presses embolism type
More options use following two:
(1) every drilling reaches an examination segment length hole depth, immediately tripping in from top to bottom for hydraulic type list embolization --- drilling
Hydraulic type list embolism carries out a packer permeability test, then proposes single embolism exerciser, then creeps into next examination hole depth, so
Circulation is until complete opening.
(2) the double embolizations of hydraulic type --- after drilling completes complete opening, the double embolisms of tripping in hydraulic type, each examination section as required
Length, along the deep packer permeability test for continuously implementing to complete complete opening paragraph by paragraph respectively of complete opening.
Single embolization and double embolizations, which are taken, first to be supplied water by the independent pressure duct of a complete opening length, passes through pressure water inflation
Embolism (single or double) capsule makes its expansion play the role of insulating test section, is then shut off and seals this high pressure aquaporin, then pass through
Complete opening drill string (pressure pipe) water stream channel send water to packer permeability test hole section, the method for carrying out packer permeability test.
There are perfect mating approved product, exerciser in hydrostatic rubber packer list embolism and the current country of double embolisms
Generally up to 10Mpa~30Mpa pressure value, production unit carries out model by required aperture specification and pressure value index for embolism pressure resistance
Selection, purchases outfit and comes into operation.However, hydraulic type list embolism used by these drilling process and double embolism pressure water examinations
Test prior art, though be widely used and mature and reliable, practice in there are still following problems:
(1) need to be equipped with a set of individual facility: high pressure charging pump and the high service pipeline of complete opening depth are (generally logical
The pressure-resistant flexible rubber hose or steel of water hole about Φ 6mm internal diameter compile hose)；
(2) when carrying out the examination formal packer permeability test process of section, for the reliable performance for guaranteeing embolism packing examination section, entire complete opening
Length high-pressure hose to embolism capsule inner cavity range is in higher-pressure region, and packer permeability test process must be always maintained at sealing state, if going out
Now pipeline is damaged or connector leak makes higher-pressure region that pressure release situation occur, it will influences the leakproofness of embolism, need to make supplement and repeatedly add
Press operation, in some instances it may even be possible to there is leakproofness not enough and cause to influence to test, need to carry out checking pressure release reason and position, remake repairing or
Replacement processing.(3) every section of packer permeability test terminates, and the pressure release after being expanded due to single or double embolism capsule by high pressure water restores dynamic
Make, valve need to be opened from ground and slowly flowed out by high-pressure hose of the water under differential pressure action along complete opening depth, thus pressure leak process compared with
To be time-consuming, especially under the conditions of deep hole, the overlong time of pressure release is waited, and occurs water level in borehole pressure difference exception or stratum spy sometimes
Situations such as different hole wall effect of irregular, makes embolism capsule be not easy complete pressure release and restores, exerciser embolism is caused to be difficult to smoothly
Act the case where pulling out；
(4) in every section of tripping in packer permeability test device, for the embolism hydraulic pressure flexible rubber hose and drilling rod (pressure pipe) for preventing complete opening depth
Occur that reduction of speed is uneven and wrapping phenomena, need to every several meters with drilling rod make it is careful tie up fixation, again need to will be every when acting exerciser
Fractionation is tied up at place so that tripping in and rise exerciser operating process it is relatively complicated and time-consuming.
Summary of the invention
In order to solve the above problem, the present invention provides a kind of deep hole packer permeability test device.This device can meet simultaneously selection and adopt
With conventional drilling tool or rope drilling tool drilling process, selection using hydraulic type list embolism or the deep hole packer permeability test of the double embolisms of hydraulic type
The needs of technical solution can be applicable in respectively in a variety of different conditions, meet multiduty requirement；This device can save
An independent pressure duct needed for hydraulic expansion embolism in prior art has reached reduction configuration, has reduced cost, simplification
The effect of operation is also equipped with the effect of higher-pressure region leakproofness after raising and the expansion of holding bolt plug capsule, in addition also has and guarantee pressure
Quick, reliable effect of the pressure leak process of embolism capsule after water test, meets multi-functional requirement.
The technical solution adopted by the present invention is that: a kind of deep hole packer permeability test device, including connect with drilling tool reducer union,
Piston component, check valve assembly and embolism capsule body, it is characterised in that: the piston component includes piston cover for seat and is set in work
Piston body in obturating plug set, the piston body upper end is stretched out outside piston cover for seat to be fixedly connected with reducer union；The piston body edge
Piston body centre bore and piston body eccentric orfice are equipped on axis direction in parallel, the piston body centre bore is arranged in piston body axis
On line；Piston body eccentric orfice upper end is connected to the flow channels of reducer union, and lower end passes through check valve assembly and embolism glue
The capsule inner cavity of utricule is connected to, and forms first passage；
Piston body centre bore upper end is connected to the flow channels of reducer union, and core is equipped in the piston body centre bore
Pipe is equipped with two groups of piston body inner ring seal circles for sealing between the core tube wall top and piston body centre bore hole wall
Group is equipped with core pipe wall between piston body inner ring seal circle group described in two groups to water flowing eye, and the piston body centre bore passes through core pipe
Wall is connected to water flowing eye with core pipe lumen orifice, and the core pipe lower end passes through check valve assembly and is connected to embolism exerciser core pipe, institute
It states embolism exerciser core pipe lower end to be connected to across capsule inner cavity with test section floral tube water outlet, forms second channel.
Preferably, the check valve assembly include the one-way valve seat that piston body eccentric orfice water outlet is set, with it is unidirectional
Valve seat cooperation check valve, one-way valve spring and one-way valve spring pedestal, one-way valve spring pedestal upper end by screw thread with
Piston cover for seat lower end is fixedly connected, and valve seat eccentric orfice is equipped in the middle part of the one-way valve spring pedestal, and the valve rod of the check valve is set
It sets in valve seat eccentric orfice, the one-way valve spring upper end is resisted against on the valve deck of check valve upper end, and lower end is resisted against check valve
On spring cup body；The check valve valve deck is separated with one-way valve seat, and the piston body eccentric orfice is connected with valve seat eccentric orfice；It is described
Check valve valve deck is bonded with one-way valve seat, and the piston body eccentric orfice and valve seat eccentric orfice are truncated.
Further, the check valve water outlet mouthpiece of valve seat eccentric orfice lower end is connected by high pressure short tube and capsule inner cavity
It is logical.
Further, one-way valve spring pedestal lower end is fixedly connected by screw thread with the upper end of connector sleeve, described
The lower end of connector sleeve is fixedly connected by screw thread with embolism exerciser upper joint sleeve, on the embolism capsule body and embolism exerciser
Connector sleeve is fixedly connected；The high pressure short tube is arranged in connector sleeve, and the high pressure short tube connects with capsule inner cavity water inlet interface
It is logical.
Preferably, the piston body centre bore is stepped hole, top aperture is greater than lower part aperture；The core pipe top with
Sealing is formed by two groups of piston body inner ring seal circle groups between the lower part aperture of piston body centre bore, the drilling tool passes through variable diameter
Laced belt piston body opposing pistons cover for seat moves downward, and it is big to water flowing eye and the top of piston body centre bore to drop to core pipe wall
Hole is corresponding, and piston body centre bore is connected to water flowing eye with core pipe lumen orifice by core pipe wall.
Preferably, the water inlet interface of the core pipe water outlet mouthpiece of the core pipe lower end and embolism exerciser core pipe upper end connects
It is logical.
Preferably, being equipped with one-way valve spring seat core pipe sealing ring between the one-way valve spring pedestal and core tube wall
Group.
Preferably, being equipped with locating rod between the one-way valve spring pedestal and piston body.
The beneficial effect that the present invention obtains is:
1, the present invention only needs to pass through novel pressure using mutually same set of high-pressure pump and water supply pipe provisioned in existing drilling process
Two independences of water test device and the water stream channel converted in due course can be opened or be closed in due course, can both implement to press water inflation in advance
Embolism capsule process, then can be realized in due course non-return valve function by simple operations, and closing pressure water inflates capsule water channel
And it forms high pressure enclosed area and guarantees and keep embolism sealing performance, while changing water stream channel path to test section together and being discharged
Mouthful, it can continue to implement packer permeability test process.Can save in existing method in this way aim at pressure water inflation embolism it is provisioned and
The high service pipeline of the another set of high pressure charging pump used and complete opening length.Reduce needed for equipment and material configuration and reduce at
Originally, simplify operation.
2, applicability is wide: the present invention can meet simultaneously in conventional drilling tool or rope drilling tool drilling process, select the water used
The needs of the water pressure test in borehole technical solution of pressure type list embolism or the double embolisms of hydraulic type, in above-mentioned a variety of different conditions
Can directly it be applicable in.
3, function is more: in existing method, implementing the packer permeability test period is the performance for keeping embolism packing examination section, entire complete
The high-pressure hose of hole length to capsule inner cavity range area must keep high pressure sealing state；Off-test, the water flow of capsule inner cavity
Pressure release need to slowly be flowed out along the high-pressure hose of the small inner diameter hole of complete opening depth, and pressure leak process is time-consuming and effect is limited by external condition.
The design principle and structure of this novel packer permeability test device, it is only single in experimental rig when being modified to the examination section packer permeability test period
It is compressed in place later to being higher-pressure region between embolism capsule inner cavity to valve deck, higher-pressure region range is greatly reduced, and pass through behaviour
Formed in due course non-return valve function ensure that time period will not reverse flow, play raising and guarantee embolism higher-pressure region leakproofness
Function；Off-test, after operational motion releases in due course non-return valve function, the high pressure water of capsule inner cavity i.e. high speed under differential pressure
Reverse direction flow drill string large diameter hole water stream channel, plays quick, reliable decompression function.
4, the present invention can reduce the configuration of field device equipment in shallow bore hole condition and simplification removes exerciser operation link；
Tripping in complete opening high pressure flexible rubber hose also be can avoid under the conditions of deep hole to the inconvenience of hole depth bring and limitation；Difference drilling bore can fit
With.Adaptability and general applicability to drilling depth are significantly improved than prior art.
Detailed description of the invention
Structural schematic diagram when Fig. 1 is first passage connection of the invention；
Fig. 2 is the enlarged drawing in Fig. 1 at a；
Fig. 3 is structural schematic diagram when second channel is connected to；
Fig. 4 is the enlarged drawing in Fig. 3 at b.
Specific embodiment
The present invention will be further explained in the following with reference to the drawings and specific embodiments.
As shown in Figs. 1-2, a kind of deep hole packer permeability test device of the invention, including be from top to bottom arranged reducer union 1,
Piston component, check valve assembly and embolism capsule body 8, reducer union 1 are connect with drilling tool, and the drilling tool of different model is selected corresponding
Reducer union 1, piston component include piston cover for seat 21 and the piston body 22 that is set in piston cover for seat 21, and 22 upper end of piston body is stretched
Piston cover for seat 21 is outer out is fixedly connected with 1 lower end of reducer union, and piston body 22 is equipped with piston body centre bore 27 in the axial direction
With piston body eccentric orfice 23, piston body centre bore 27 and piston body eccentric orfice 23 is parallel to each other and eccentric setting, piston body center
Hole 27 is arranged on 22 central axes of piston body, and 23 upper end of piston body eccentric orfice is connected to the flow channels 11 of reducer union 1, lower end
It is connected to by check valve assembly with the capsule inner cavity 81 of embolism capsule body 8；Water flow is flowed from 11 upper end of flow channels of reducer union 1
Enter piston body eccentric orfice 23, when check valve assembly is connected, enters in capsule inner cavity 81 after check valve assembly, form first passage
(A channel in figure).
As shown in Figure 3-4,27 upper end of piston body centre bore is connected to the flow channels 11 of reducer union 1, piston body center
It is equipped with core pipe 4 in hole 27, in the present embodiment, piston body centre bore 27 is stepped hole, and top aperture is greater than lower part aperture, initial shape
When state, pass through two groups of formation of piston body inner ring seal circle group 26 between 4 top of core pipe and the lower part aperture of piston body centre bore 27
It seals, core pipe wall is equipped between two groups of piston body inner ring seal circle groups 26 to water flowing eye 24, drilling tool is driven by reducer union 1 and lived
22 opposing pistons cover for seat 21 of cock body moves downward, and drops to core pipe wall to the top macropore of water flowing eye 24 and piston body centre bore 27
Corresponding, piston body centre bore 27 is connected to water flowing eye 24 with core pipe lumen orifice by core pipe wall, and check valve assembly, which is in, at this time closes
Closed state (first passage closing).4 lower end of core pipe passes through check valve assembly and is connected to embolism exerciser core pipe 7, embolism exerciser
7 lower end of core pipe passes through capsule inner cavity 81 and is connected to test section floral tube water outlet；Water flow is from 11 upper end of flow channels of reducer union 1
Piston body centre bore 27 is flowed into, core pipe lumen orifice is entered to water flowing eye 24 through core pipe wall, it is rear to flow into embolism exerciser core pipe 7, shape
At second channel (channel B in figure).
In the present embodiment, check valve assembly includes one-way valve seat 31, check valve 32, one-way valve spring 33 and one-way valve spring
Pedestal 34, the setting of one-way valve seat 31 pass through screw thread and work in 23 water outlet of piston body eccentric orfice, 34 upper end of one-way valve spring pedestal
Obturating plug covers 21 lower ends and is fixedly connected, and 34 lower end of one-way valve spring pedestal is fixedly connected by screw thread with the upper end of connector sleeve 6, connection
The lower end of set 6 is fixedly connected by screw thread with embolism exerciser upper joint sleeve 82, is connected on embolism capsule body 8 and embolism exerciser
Set 82 is fixedly connected；Valve seat eccentric orfice 35 is equipped in the middle part of one-way valve spring pedestal 34, high pressure short tube 5 is arranged in connector sleeve 6, high
The upper end of pressure short tube 5 is connected to the check valve water outlet mouthpiece 36 of 35 lower end of valve seat eccentric orfice, is connected on lower end and embolism exerciser
The capsule inner cavity water inlet interface 83 for covering 82 upper ends is connected to, i.e., high pressure short tube 5 is connected to valve seat eccentric orfice 35 and capsule inner cavity 81.Unidirectionally
The valve rod of valve 32 is arranged in valve seat eccentric orfice 35, and 33 upper end of one-way valve spring is resisted against on the valve deck of 32 upper end of check valve, under
End is resisted against on one-way valve spring pedestal 34；32 valve deck of check valve is separated with one-way valve seat 31, piston body eccentric orfice 23 and valve seat
Eccentric orfice 35 is connected, i.e., first passage (A) is connected, and second channel (B) is closed；32 valve deck of check valve is bonded with one-way valve seat 31,
Piston body eccentric orfice 23 and valve seat eccentric orfice 35 are truncated, i.e., first passage (A) is closed, second channel (B) conducting.
In the present embodiment, the core pipe water outlet mouthpiece 41 of 4 lower end of core pipe and the water inlet interface 71 of 7 upper end of embolism exerciser core pipe
Connection；Piston body outer ring seal circle group 25, one-way valve spring pedestal are equipped between 22 outer wall of 21 inner wall of piston cover for seat and piston body
One-way valve spring seat core pipe sealing ring group 37 is equipped between 34 and 4 outer wall of core pipe；One-way valve spring pedestal 34 and piston body 22 it
Between be equipped with locating rod 29,29 upper end of locating rod extend into the location hole 28 of piston body 22, lower end and one-way valve spring pedestal 34
It is fixedly connected.
When removing exerciser, piston body 22 and piston cover for seat 21 are in suspension status.Piston body outer ring seal circle group 25 plays
Sealing function between piston body 22 and piston cover for seat 21, piston body inner ring seal circle group 26 play piston body 22 and core pipe 4 it
Between sealing function, one-way valve spring seat core pipe sealing ring group 37 plays the sealing between one-way valve spring pedestal 24 and core pipe 4
Effect.When drilling is using conventional drilling tool or rope drilling tool, packer permeability test device top of the invention need to connect opposite with its drilling tool
The variable-diameter connector of drill rod 1 answered；When selection is using hydraulic type list embolization or hydraulic type pair embolization, experimental rig lower part is then connected
The corresponding single embolism or double embolism exercisers (approved product) that technical parameter matches with test section.
Pressure water experimental provision of the invention is to reach a set of high service pipeline of economization and still meet pressure water to fill and try section
The needs of difference pressure aquaporin when packer permeability test difference process are designed to have two articles of independent water stream channels (first passage and the
Two channels), and make it have point sequence it is unimpeded or closing, in due course conversion in place, the function that operation is simple and reliable, pressure can be undertaken in due course
Water inflates the water stream channel effect of embolism capsule, three examination section packer permeability test, higher-pressure region quick pressure releasing difference process.It is full
Pressure water fills, close higher-pressure region, keeps leakproofness, examination section packer permeability test, quick pressure releasing etc. respectively in the entire packer permeability test work of foot
The different of procedure need, and are designed to there is conversion in due course, closed check valve assembly effect in due course, pass through simple operations
Accomplish to realize high pressure water inflation embolism respectively by process, fill water channel closing, unidirectional fluid stopping sealing, fast and reliable pressure release etc. multinomial
Function, it is this to be formed in due course by different process demands or release the design concept of unidirectional valve action in due course, it is referred to as in due course single
To valve arrangement, there is significant difference to performance with the single stream of common common fixed one-way valve structures.
The working principle of the invention:
(a) pressure water inflates embolism micelle: turn on pump send exerciser in water to hole to carry out inflation embolism capsule process, this mistake
The water stream channel path A of Cheng Quan drill string are as follows: flow channels 11-piston body eccentric orfice in drilling rod inner diameter hole-reducer union 1
23-valve seat eccentric orfice 35 (one-way valve seat 31 and 32 valve deck of check valve are separated position at this time)-one-way valve spring pedestals are discharged
Interface 36-high pressure short tube 5-embolism capsule inner cavity water inlet interface 83-enters capsule inner cavity 81, starts to press water inflation embolism glue
Utricule 8 acts.(this process water stream channel path A is as shown in Fig. 1)
(b) form in due course high pressure check valve process: pressure gauge reach test pressure value and it is basicly stable after, operation drilling machine is vertical
Axis control makes drill string slowly decline h, and embolism capsule body 8 is contacted compression, piston with hole wall after the full expansion of pressure water at this time
Cover for seat 21, one-way valve spring pedestal 24, connector sleeve 6, embolism exerciser upper joint sleeve 82 and entire embolism exerciser are screw thread company
Integrated assembly is connect, it is in fixed state that the contact with embolism capsule body 8 with hole wall at this time, which compresses,；And piston body 22 is in piston
Then can be with drilling rod and the synchronous decline of reducer union 1 in cover for seat 21, one-way valve seat 31 is with lowering action and moving distance h and unidirectionally
The valve deck contact of valve 32 compresses and continues to compress one-way valve spring 33 to design depressed position, so that one-way valve seat 31 and check valve
The 32 valve deck conical surface reaches sealing state, and the valve deck of check valve 32 is at this time with the capsule inner cavity after the expansion of embolism capsule body 8
81 ranges are in high-pressure water seal area, and are formed in due course between one-way valve seat 31, the valve deck of check valve 32, one-way valve spring 33 unidirectional
Valve arrangement effect, closing inflation embolism water stream channel path A stop pressure water inflation embolism capsule body 8 and act, capsule inner cavity 81
High pressure water is also kept will not outside aerial drainage.
(c) open the examination formal packer permeability test channel process of section: piston body inner ring seal circle group 26 drops to piston body 22
Behind position, core pipe wall is corresponding with the top macropore of piston body centre bore 27 to water flowing eye 24, and core pipe wall is same to the sealing of water flowing eye 24
When release therewith, water stream channel is converted into opening examination section packer permeability test water stream channel in due course, and the water flow of the full drill string of this process is logical
Path B are as follows: flow channels 11-piston body, 27-core pipe of centre bore wall in drilling rod inner diameter hole-reducer union 1 is to water flowing eye
24-core pipe inner diameter holes-core pipe water outlet mouthpiece 41-embolism exerciser core pipe water inlet interface 71-passes through embolism exerciser core pipe
To test section floral tube water outlet.(this process water stream channel path B is as shown in Fig. 2)
(d) pressure leak process: packer permeability test terminates, and water pump stopping send water and opens water diversion disk valve, operates on drilling machine vertical shaft
Full drill string h is drawn, so that one-way valve seat 31 and 32 valve deck of check valve are completely separable, in due course check valve assembly event resolves, piston
Body eccentric orfice 23 is opened, at the same piston body inner ring seal circle group 26 with the closed core pipe wall of 22 uplink of piston body to water flowing eye 24, this
When water stream channel and described (1) pressure water inflation embolism capsule process channel path A it is identical but be opposite course, water flow is logical
Road is converted into A in due course by B and plays current by pass function, and it is big that the high pressure water of capsule inner cavity 81 flows at a high speed drill string under differential pressure
Inner diameter hole water channel: when using common drilling rod, water flowing inner diameter hole is Φ 22mm, water channel area then for about 3.8cm2；According to rope
Water flowing inner diameter hole is about Φ 65mm when drilling rod, and water channel area is then about 34cm2；And using the logical of high-pressure hose in existing technical solution
Water hole internal diameter about Φ 6mm, water channel area are then about 0.28cm2, technical solution of the present invention its pressure release water stream channel area increase is about
13 times~120 times, so enabling entire pressure leak process reliable rapidly.
Concrete operations of the invention
Deep hole packer permeability test device of the invention operates with, and when being crept into using conventional drilling tool or rope drilling tool, removes
It needs to be separately connected variable-diameter connector of drill rod corresponding with drilling tool above experimental rig, other operating procedures are completely the same.Using list
When embolization or double embolizations, except needing, experimental rig connects corresponding single embolism separately below or the sizing of double embolism packers produces
Outside product, other operating procedures are almost the same.
Specific steps are as follows:
(1) ground-mounted: as needed, the single embolism or double embolism exercisers (approved product) of appropriate size are selected.It presses
Drawing and requirement have been linked and packed each content building block of experimental rig；Experimental rig lower end, by the embolism of exerciser
Capsule inner cavity water inlet interface 83 is connect with high pressure short tube 5, and embolism exerciser core pipe water inlet interface 71 and core pipe water outlet mouthpiece 41 connect
It connects, the reducer union 1 of drilling rod connects drilling tool used.
(2) the embolism exerciser that tripping in assembles into hole and novel packer permeability test device, then by root connection and tripping in
Drilling rod (seal approach is taken between tool joint) corresponding with conventional drilling tool or rope drilling tool, until the packer permeability test hole of design
It is deep.
(3) drilling machine vertical shaft in aperture is clamped complete opening drill string, and performs mark label；To creep into high-pressure pump used and
Surface water supply pipe water diversion disk is connect with drill string water inlet pipe.
(4) turn on pump send exerciser in water to hole, starts to press water inflation capsule process, at this time the water stream channel road of full drill string
Diameter is as described in (a)；As pump pressure gradually rises so that capsule expansion contacts compression packing test hole section completely with hole wall, until reaching
To 3~10Mpa of test section scheduled pressure value.
(5) drill string is made slowly to decline h using the control of drilling machine vertical shaft, piecing devices are formed in due course single as described in (b) at this time
It is acted on to valve arrangement, closing inflation embolism water channel A stops pressure water and inflates capsule process, and the high pressure water of capsule inner cavity will not be outside
Aerial drainage.
(6) after drill string and piston body are fallen into place, water stream channel is also converted therewith, and core pipe wall is synchronized water flowing eye 24
It opens, examination section packer permeability test water stream channel B is opened, and starts formal packer permeability test process, the water stream channel of the full drill string of this process
Path B observes pressure gauge situation as described in (c), and pressure tabular value is decreased obviously mark water stream channel and smoothly converts, at this time can be by rule
0.3~1.0Mpa of range request pressure value starts to carry out the formal packer permeability test process of examination section stage by stage.
(7) packer permeability test terminates, and water pump stopping send water and opens water diversion disk valve, starts pressure release process, then operation is bored
Machine vertical shaft pulls up full drill string h distance, and water stream channel rushes swollen embolism micelle water stream channel A phase with hydraulic pressure described in (a) at this time
It together but is opposite course, the high pressure water high speed reverse direction flow drill string large diameter hole low pressure water channel of capsule inner cavity, so that pressure release
Journey is reliable rapidly.
(8) single embolization packer permeability test: according to single embolism packer permeability test method, replied to complete pressure release embolism capsule former
After shape, complete opening drill string and single embolism exerciser are upgraded out, carries out next drilling, packer permeability test working cycles.
Double embolization packer permeability tests: according to double embolism packer permeability test methods, to complete pressure release embolism capsule restore,
After drill string and double embolism exercisers are then moved to next test fragment position, continue again turn on pump and send water, starts the pressure of lower examination section
Water inflates embolism capsule process and subsequent packer permeability test process, so recycles paragraph by paragraph until completing whole pore water pressure test work.
Basic principle and key structural feature of the invention has been shown and described above.The present invention is not by the limit of examples detailed above
System, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes and improvements
It both falls in the range of claimed invention.The claimed scope of the invention is by appended claims and its equivalent
It defines.
Claims (8)
1. a kind of deep hole packer permeability test device, including connect with drilling tool reducer union (1), piston component, check valve assembly and
Embolism capsule body (8), it is characterised in that: the piston component includes piston cover for seat (21) and is set in piston cover for seat (21)
Piston body (22), piston body (22) upper end are stretched out piston cover for seat (21) and are fixedly connected outside with reducer union (1)；The piston
Body (22) is upper in the axial direction to be equipped with piston body centre bore (27) and piston body eccentric orfice (23), the piston body centre bore in parallel
(27) it is arranged on piston body (22) central axes；The flow channels of piston body eccentric orfice (23) upper end and reducer union (1)
(11) it is connected to, lower end is connected to by check valve assembly with the capsule inner cavity (81) of embolism capsule body (8), and first passage is formed；
Piston body centre bore (27) upper end is connected to the flow channels (11) of reducer union (1), the piston body centre bore
(27) core pipe (4) are equipped in, two groups are equipped between core pipe (4) the outer wall top and piston body centre bore (27) hole wall for close
The piston body inner ring seal circle group (26) of envelope is equipped with core pipe wall between piston body inner ring seal circle group (26) described in two groups to water flowing
Eye (24), the piston body centre bore (27) are connected to water flowing eye (24) with core pipe (4) lumen orifice by core pipe wall, the core pipe
(4) lower end passes through check valve assembly and is connected to embolism exerciser core pipe (7), and the embolism exerciser core pipe (7) lower end passes through glue
Intracapsular chamber (81) is connected to test section floral tube water outlet, forms second channel.
2. deep hole packer permeability test device according to claim 1, it is characterised in that: the check valve assembly includes that setting exists
The one-way valve seat (31) of piston body eccentric orfice (23) water outlet, check valve (32), check valve bullet with one-way valve seat (31) cooperation
Spring (33) and one-way valve spring pedestal (34), one-way valve spring pedestal (34) upper end pass through under screw thread and piston cover for seat (31)
End is fixedly connected, and is equipped with valve seat eccentric orfice (35) in the middle part of the one-way valve spring pedestal (34), the valve rod of the check valve (32)
In valve seat eccentric orfice (35), one-way valve spring (33) upper end is resisted against on the valve deck of check valve (32) upper end for setting, under
End is resisted against on one-way valve spring pedestal (34)；Check valve (32) valve deck is separated with one-way valve seat (31), the piston body
Eccentric orfice (23) and valve seat eccentric orfice (35) are connected；Check valve (32) valve deck is bonded with one-way valve seat (31), the piston
Body eccentric orfice (23) and valve seat eccentric orfice (35) are truncated.
3. deep hole packer permeability test device according to claim 2, it is characterised in that: valve seat eccentric orfice (35) lower end
Check valve water outlet mouthpiece (36) is connected to by high pressure short tube (5) with capsule inner cavity (81).
4. deep hole packer permeability test device according to claim 3, it is characterised in that: under the one-way valve spring pedestal (34)
End is fixedly connected by screw thread with the upper end of connector sleeve (6), and the lower end of the connector sleeve (6) passes through on screw thread and embolism exerciser
Connector sleeve (82) is fixedly connected, and the embolism capsule body (8) is fixedly connected with embolism exerciser upper joint sleeve (82)；The high pressure
In connector sleeve (6), the high pressure short tube (5) is connected to capsule inner cavity water inlet interface (83) for short tube (5) setting.
5. deep hole packer permeability test device according to claim 1, it is characterised in that: the piston body centre bore (27) is rank
Terraced hole, top aperture are greater than lower part aperture；Pass through between core pipe (4) top and the lower part aperture of piston body centre bore (27)
Two groups of piston body inner ring seal circle groups (36) form sealing, and the drilling tool drives piston body (22) opposite by reducer union (1)
Piston cover for seat (21) moves downward, and drops to core pipe wall to the top macropore pair of water flowing eye (24) and piston body centre bore (27)
It answers, piston body centre bore (27) is connected to water flowing eye (24) with core pipe (4) lumen orifice by core pipe wall.
6. deep hole packer permeability test device according to claim 1, it is characterised in that: the core pipe of core pipe (4) lower end goes out
Water interface (41) is connected to the water inlet interface (71) of embolism exerciser core pipe (7) upper end.
7. deep hole packer permeability test device according to claim 1, it is characterised in that: the one-way valve spring pedestal (34) with
One-way valve spring seat core pipe sealing ring group (37) is equipped between core pipe (4) outer wall.
8. deep hole packer permeability test device according to claim 1, it is characterised in that: the one-way valve spring pedestal (34) with
Locating rod (29) are equipped between piston body (22).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811025529.3A CN109162695B (en) | 2018-09-04 | 2018-09-04 | Deep hole pressurized water test device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811025529.3A CN109162695B (en) | 2018-09-04 | 2018-09-04 | Deep hole pressurized water test device |
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Cited By (3)
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| CN110018103A (en) * | 2019-04-25 | 2019-07-16 | 江西理工大学 | A kind of building lot field seepage test device and its test method |
| CN110700819A (en) * | 2019-10-12 | 2020-01-17 | 重庆市市政设计研究院 | Anhydrous drilling sound wave detection and water pressure test integrated device |
| CN113417637A (en) * | 2021-06-18 | 2021-09-21 | 中国平煤神马能源化工集团有限责任公司 | Water pressurizing test system and method |
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| CN109162695B (en) | 2024-04-12 |
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