CN107724953A - The down-the-hole hammer reverse circulating drilling process construction method of Fluid Sealing - Google Patents
The down-the-hole hammer reverse circulating drilling process construction method of Fluid Sealing Download PDFInfo
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- CN107724953A CN107724953A CN201710885772.1A CN201710885772A CN107724953A CN 107724953 A CN107724953 A CN 107724953A CN 201710885772 A CN201710885772 A CN 201710885772A CN 107724953 A CN107724953 A CN 107724953A
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- reverse circulating
- hole
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- 238000005553 drilling Methods 0.000 title claims abstract description 135
- 238000000034 method Methods 0.000 title claims abstract description 72
- 239000012530 fluid Substances 0.000 title claims abstract description 51
- 238000007789 sealing Methods 0.000 title claims abstract description 37
- 238000010276 construction Methods 0.000 title claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 30
- 238000005538 encapsulation Methods 0.000 claims abstract description 26
- 239000008393 encapsulating agent Substances 0.000 claims abstract description 14
- 230000000694 effects Effects 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 26
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 22
- 239000000440 bentonite Substances 0.000 claims description 20
- 229910000278 bentonite Inorganic materials 0.000 claims description 20
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 20
- 239000000203 mixture Substances 0.000 claims description 19
- RCEAADKTGXTDOA-UHFFFAOYSA-N OS(O)(=O)=O.CCCCCCCCCCCC[Na] Chemical compound OS(O)(=O)=O.CCCCCCCCCCCC[Na] RCEAADKTGXTDOA-UHFFFAOYSA-N 0.000 claims description 15
- 229910052708 sodium Inorganic materials 0.000 claims description 14
- 239000011734 sodium Substances 0.000 claims description 14
- -1 sodium alkyl benzene Chemical class 0.000 claims description 13
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 12
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 11
- 229940077388 benzenesulfonate Drugs 0.000 claims description 11
- 150000002191 fatty alcohols Chemical class 0.000 claims description 11
- 239000004088 foaming agent Substances 0.000 claims description 11
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 11
- 235000011152 sodium sulphate Nutrition 0.000 claims description 11
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical class [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 8
- 239000004927 clay Substances 0.000 claims description 7
- ZGTMUACCHSMWAC-UHFFFAOYSA-L EDTA disodium salt (anhydrous) Chemical compound [Na+].[Na+].OC(=O)CN(CC([O-])=O)CCN(CC(O)=O)CC([O-])=O ZGTMUACCHSMWAC-UHFFFAOYSA-L 0.000 claims description 5
- 239000001397 quillaja saponaria molina bark Substances 0.000 claims description 5
- 229930182490 saponin Natural products 0.000 claims description 5
- 150000007949 saponins Chemical class 0.000 claims description 5
- 235000011121 sodium hydroxide Nutrition 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 4
- 239000003109 Disodium ethylene diamine tetraacetate Substances 0.000 claims description 3
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052921 ammonium sulfate Inorganic materials 0.000 claims description 3
- 235000011130 ammonium sulphate Nutrition 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 235000019301 disodium ethylene diamine tetraacetate Nutrition 0.000 claims description 3
- 150000003951 lactams Chemical class 0.000 claims description 3
- 235000019353 potassium silicate Nutrition 0.000 claims description 3
- 229920002554 vinyl polymer Polymers 0.000 claims description 3
- RZYKUPXRYIOEME-UHFFFAOYSA-N CCCCCCCCCCCC[S] Chemical compound CCCCCCCCCCCC[S] RZYKUPXRYIOEME-UHFFFAOYSA-N 0.000 claims description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 2
- 229940124274 edetate disodium Drugs 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 description 10
- 239000000243 solution Substances 0.000 description 10
- 239000007788 liquid Substances 0.000 description 9
- 241001074085 Scophthalmus aquosus Species 0.000 description 8
- 239000002002 slurry Substances 0.000 description 8
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 5
- 238000013461 design Methods 0.000 description 5
- 239000011435 rock Substances 0.000 description 5
- 239000004576 sand Substances 0.000 description 5
- 239000001768 carboxy methyl cellulose Substances 0.000 description 4
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 4
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 230000007115 recruitment Effects 0.000 description 4
- 230000000087 stabilizing effect Effects 0.000 description 4
- 239000013589 supplement Substances 0.000 description 4
- 239000000945 filler Substances 0.000 description 3
- 239000006260 foam Substances 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- 244000261422 Lysimachia clethroides Species 0.000 description 2
- 241000209094 Oryza Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 229920002401 polyacrylamide Polymers 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 102000016938 Catalase Human genes 0.000 description 1
- 108010053835 Catalase Proteins 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 125000002057 carboxymethyl group Chemical group [H]OC(=O)C([H])([H])[*] 0.000 description 1
- 235000019994 cava Nutrition 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000009918 complex formation Effects 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000009466 transformation Effects 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
- E21B7/00—Special methods or apparatus for drilling
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/02—Well-drilling compositions
- C09K8/04—Aqueous well-drilling compositions
- C09K8/06—Clay-free compositions
- C09K8/12—Clay-free compositions containing synthetic organic macromolecular compounds or their precursors
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/02—Well-drilling compositions
- C09K8/04—Aqueous well-drilling compositions
- C09K8/14—Clay-containing compositions
- C09K8/18—Clay-containing compositions characterised by the organic compounds
- C09K8/20—Natural organic compounds or derivatives thereof, e.g. polysaccharides or lignin derivatives
- C09K8/206—Derivatives of other natural products, e.g. cellulose, starch, sugars
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/02—Well-drilling compositions
- C09K8/04—Aqueous well-drilling compositions
- C09K8/14—Clay-containing compositions
- C09K8/18—Clay-containing compositions characterised by the organic compounds
- C09K8/22—Synthetic organic compounds
- C09K8/24—Polymers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/02—Well-drilling compositions
- C09K8/38—Gaseous or foamed well-drilling compositions
-
- 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/16—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor using gaseous fluids
-
- 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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Geochemistry & Mineralogy (AREA)
- Dispersion Chemistry (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
A kind of down-the-hole hammer reverse circulating drilling construction method of Fluid Sealing comprises the following steps：Step 1: down-the-hole hammer reverse circulating rig mounting and adjusting is in place；Step 2: pulp storage tank is set around aperture, pulp storage tank dress fluid encapsulation material；Step 3: under the drilling tool of down-the-hole hammer reverse circulating rig in man-hole opening, air compressor machine drilling is opened；Step 4: in down-the-hole hammer reverse circulating borer drilling procedure, the encapsulant drained in drilling in pulp storage tank enters in aperture.It is an advantage of the current invention that sealed by encapsulant device to hole subdrilling tool and hole wall so that down-hole hammer forms effective reacting cycle, to improve the using effect of down-the-hole hammer reverse circulating drilling process and drilling efficiency.
Description
Technical field
The present invention relates to the industry drilling technology such as geological drilling, Construction for Hydroelectric Project field, more particularly to it is latent
Retaining wall and encapsulating method during drift counterflush drilling.
Background technology
In the industry drilling process such as geological prospecting, petroleum resources exploitation, geothermal drilling, Hydraulic and Hydro-Power Engineering, for sand
Pebble layer, solution cavity and the Complex formation drilling that easily caves in etc. it is difficult be always that the technology that drilling well circle both at home and abroad is urgently to be resolved hurrily at present is difficult
Topic.In recent years, a variety of construction methods, such as pipe-following drilling technique, mud off air lift counter circulation drill are developed in succession both at home and abroad
Enter technique, down-the-hole hammer reverse circulating drilling process etc..Several drilling technologies respectively have its advantage and disadvantage above, also each to the adaptability on stratum
Differ.Not only effect is high during troublesome zone drilling for down-the-hole hammer reverse circulating drilling process with very big market prospects,
And it is pollution-free, it is a kind of minimum drilling technology of effect on environment.Down-the-hole hammer reverse circulating drilling process has two kinds of building forms：
One kind is direct circulation down-hole hammer+cross-over joint+plugging device+double-wall drill pipe；Another kind is hollow hammer hole+plugging device+double-walled
Drilling rod；Can technique key factor of success or not in implementation process be to form effective reacting cycle deslagging；Use at present
Method be using plugging device bottom hole sealing and port seal two ways；It facts have proved for sand-pebble layer either
Miss serious karst strata both modes to no effect, this is also that down-the-hole hammer reverse circulating drilling technology does not have Rapid Popularization should
With the reason for one of.
The content of the invention
For above-mentioned technical problem, the present invention provides a kind of process of fluid-filled retaining wall sealing, passes through
Encapsulant device to hole subdrilling has and hole wall is sealed so that down-hole hammer forms effective reacting cycle, is followed with improving down-hole hammer reverse
The using effect and drilling efficiency of ring drilling process；
Another inventive point of this patent, that is, introduce the borehole wall that encapsulant is crept into down-the-hole hammer reverse circulating and be supported, carry
The high stability of drilling, has huge progress relative to existing down-the-hole hammer reverse circulating drilling process；
The inventive point of this patent also includes, the research and development to encapsulant formula, is not simply to use mud, and by mud
Transformation, make mud it is huge have stronger be sealed performance.
The purpose of the present invention is achieved through the following technical solutions：A kind of down-the-hole hammer reverse circulating drilling of Fluid Sealing
Construction method comprises the following steps：
Step 1: down-the-hole hammer reverse circulating rig mounting and adjusting is in place；
Step 2: pulp storage tank is set around aperture, pulp storage tank dress fluid encapsulation material；
Step 3: under the drilling tool of down-the-hole hammer reverse circulating rig in man-hole opening, air compressor machine drilling is opened；
Step 4: in down-the-hole hammer reverse circulating borer drilling procedure, the encapsulant drained in drilling in pulp storage tank enters aperture
In.
Further, described fluid encapsulation material include bentonite and the mixture or clay of water and the mixture of water or
Solid Free solution.
Further, in described step four, the fluid encapsulation material of the pulp storage tank inflow orifice under self gravitation effect
It is interior.
Further, in described step four, bottom hole and the vertical height of fluid encapsulation material upper surface are more than or equal to 15
Rice.
Further, foaming agent is also included in the mixture of the bentonite, water；
The foaming agent includes sodium alkyl benzene sulfonate, sodium sulfate of polyethenoxy ether of fatty alcohol, lauryl sodium sulfate (K12), second
Edetate disodium, Tea Saponin；
By weight percentage, sodium alkyl benzene sulfonate 45-55%, sodium sulfate of polyethenoxy ether of fatty alcohol 12.5-15%, dodecyl
Sodium sulphate (K12) 18-24%, disodium ethylene diamine tetraacetate 10-15%, Tea Saponin 6.5-8%.
Further, the mixing of clay and water also includes foaming agent；
Above-mentioned foaming agent includes sodium alkyl benzene sulfonate, sodium sulfate of polyethenoxy ether of fatty alcohol, lauryl sodium sulfate (K12)；
By weight percentage, sodium alkyl benzene sulfonate 45-55%, sodium sulfate of polyethenoxy ether of fatty alcohol 12.5-15%, dodecyl
Sodium sulphate (K12) 21-24%.
Further, CMC is also included in the mixture of the bentonite, water；
The CMC weight is the 0.05 ~ 0.15% of bentonite weight.
Further, the Solid Free solution is waterglass class clay-free drilling fluid；
Waterglass class clay-free drilling fluid formula be waterglass 6 ~ 9%, ammonium sulfate 0.5 ~ 1%, pitch 0.5 ~ 1%, anti-sloughing agent 0.05 ~
0.1%+, polyvinyl lactam 0.05 ~ 0.1%, water.
Further, also include PHP in the mixture of the bentonite, water, by weight bentonite 5 ~ 8%, PHP0.04 ~
0.07%。
Further, in the mixture of the bentonite, water also include PHP, caustic soda, by weight bentonite 5 ~ 8%,
PHP0.04 ~ 0.05%, caustic soda 0.2 ~ 0.3%.
It is an advantage of the invention that：
（1）Fluid provided by the invention（Seal liquid）Fill fence down-the-hole hammer reverse circulating drilling process method, it fills slurries
Between hole wall and double-wall drill pipe can not only highly reliably sealing hole spirit stream, and retaining wall can be played a part of, it is special
It is not in sand-pebble layer, during using mud as filler, the sandy gravel of mud and hole wall surface is bonded together, double
Very firm shelly hole wall is formed under the compaction repeatedly of wall drilling rod, hole quality has great raising.
（2）It can require that higher drilling is effectively constructed for borehole perpendicularity
（3）The sealing property of encapsulant is strong, has stronger globality and mobility.
Brief description of the drawings
Fig. 1 is fluid-filled down-the-hole hammer reverse circulating drilling process principle schematic.
Fig. 2 is sealing-sleeve type mud off down-the-hole hammer reverse circulating drilling technology principle schematic.
Fig. 3 is elastomeric seal structure mud off down-the-hole hammer reverse circulating drilling technology principle schematic.
In such as figure：Double-wall drill pipe 1, air compressor machine 2, clean-out machine 3, fluid encapsulation material 4, reverse circulation drill bit 5, sealing shroud
6th, elastic sealer 7, through reverse circulation impactor 8.
Specific embodiment
In Fig. 1, down-the-hole hammer reverse circulating drilling process includes the double-wall drill pipe 1 driven by rig and is located at the double-walled
The through reverse circulation impactor 8 of the front end of drilling rod 1, the inside of double-wall drill pipe 1 are provided with binary channels, and annular channel connects with air compressor machine,
The inside of double-wall drill pipe 1 is connected with air compressor machine 2, and clean-out machine 3 drives double-wall drill pipe 1 to creep into, aperture inwall and double-wall drill pipe 1 it
Between fill fluid encapsulation material 4；
Reverse circulation drill bit is provided with before through reverse circulation impactor, in reverse circulation drill bit and through reverse circulation impactor junction
Provided with sealing shroud 6（As sealing shroud 6 and drill bit link together in Fig. 2, and card key structure is designed to, reverse rotation can be with
Separate；Disengaging sealing shroud can be reversely rotated when there are the accidents such as bottom hole burying, smoothly to carry brill）, utilize sealing
Set outside dimension fills slurries and bottom compressed gas with hole wall diameter close to block top；Or through in such as Fig. 3
Reverse circulation impactor 8 is provided with elastic sealer 7 with the junction of double-wall drill pipe 1, and top filling slurry is blocked using its elastic construction
Liquid and bottom compressed gas.
Higher drilling is required for perpendicularity, can be followed using sealing-sleeve type mud off down-hole hammer reverse shown in Fig. 2
The drilling tool configuration of ring drilling technology, the external diameter of the double-wall drill pipe 7 of selection is consistent with the through external diameter of reverse circulation impactor 8 or connects
Closely, sealing shroud 6 and bit diameter are as far as possible small under conditions of permission；Because double-wall drill pipe 7 and hole wall gap are smaller, it is possible to achieve
Complete opening guide digging, borehole perpendicularity requirement can be ensured.
Case 1）, certain hydraulic engineering geological state is deep half cementing sand-pebble layer of shale, formation category highly permeable
Layer, leakage is serious, and cobble is relatively large in diameter, and according to requirement of engineering, bore diameter is 127 millimeters, 200 meters of maximum drilling depth；
During boring test early stage, successively using rock-core borer mud off drilling process, wire line core drilling technique, down-hole hammer
Scheme, the drilling efficiencies such as pipe-following drilling+mud off roller boring technique are undesirable.It is able to afterwards using present invention process method
Success solves.
The step of using the inventive method, is as follows：
Step 1: clean-out machine matches somebody with somebody 108 double-wall drill pipes+through reverse circulation impactor+127 reverse circulation drill bit mounting and adjusting just
Position；
Step 2: embedded orifice tube, with inclinometer inspection and does positive fixation, a pulp storage tank is built around aperture, passes through slurry storing tank
The sealing village prepared material is put into standby in pulp storage tank；Described fluid encapsulation material is the mixture of bentonite and water；Than
Weigh 1.03 ~ 2.0g/cm3
Step 3: in drilling tool tripping in orifice tube, air compressor machine drilling is opened, observes scum pipe deslagging situation, it is ensured that reacting cycle is normal
Operation；Preferably（In Fig. 2）, the drilling tool in described step three includes reverse circulation drill bit 5, sealing shroud 6, sealing shroud 6 with it is anti-
Circulate drill bit 6 to connect into card key, drilling rod turns clockwise during drilling, and sealing shroud and reverse circulation drill bit are connected to one by card key
Rise, be an overall structure；Drilling rod rotate counterclockwise when carrying brill, the whiz card key of reverse circulation drill bit 6, which can depart from sealing shroud, bores
Head.
Step 4: in down-the-hole hammer reverse circulating borer drilling procedure, the encapsulant drained in drilling in pulp storage tank enters
In aperture,
Mud liquid level stabilizing at orifice tube is kept during preceding 30 meters of drillings；
As hole depth increases, with reference to above single drill pipe drilling needed for mud magnitude of recruitment suitably supplement, principle guarantee drilling tool with
Mud liquid level is more than 15 meters in hole.
Step 5: when being drilled into lost-circulation zone, encapsulant composition is adjusted, appropriate carboxymethyl is both added in fluid encapsulation material
Cellulose（CMC）And/or polyacrylamide（PHP）, CMC weight is the 0.05 ~ 0.15% of bentonite weight；
Step 6: in drilling process, according to supervision requirement deviational survey；Inclinometer is put into the scum pipe of double-wall drill pipe center and examined
Survey, measurement takes out inclinometer after terminating and continues to creep into；
Step 7: deslagging flexible pipe at rig gooseneck is unloaded into replacing Grouting Pipe behind whole hole, from double-wall drill pipe inner tube slagging channel
Filler hand-hole bottom will be irrigated, takes the method carried when filling to carry brill.Carry and being drilled into, bore process terminates.
Case 2）, certain ground buried pipe of ground source heat pump installation project, design 102 meters of hole depth of drilling, 140 millimeters of aperture, drilling hole
Tiltedly less than 2%, drilling hole amount 240,60 days durations.Geological state is：0 ~ 18 meter of earth's surface is miscellaneous fill layer（There is erratic boulder）；18~30
Rice is sand-pebble layer（Rich in water）；30 ~ 102 meters are lime rock stratum, wherein 60 ~ 65 meters, 80 ~ 90 meters of sections have solution cavity.Early stage
Constructed using geological drilling rig mud off direct circulation drilling process, because the leakage of solution cavity section does not seriously return slurry, using a variety of leak stopping hands
Section is undesirable, is backfilled afterwards using a large amount of loess, reluctantly into a hole, 7 days used times；Use DTH with simultaneous casing technique and Ben Fa instead
When bright process is tested, because pipe-following drilling technique rock section construct repeatedly occur card pipe it is disconnected run affairs thus after abandon, originally
Invented technology method smoothly passes through solution cavity, single hole drilling time 10 hours using foam mud sealing retaining wall.Using present invention side
Method step is as follows：
Step 1: clean-out machine matches somebody with somebody 108 double-wall drill pipes+through reverse circulation impactor+140 reverse circulation drill bit mounting and adjusting just
Position；
Pulp storage tank is set Step 2: being enclosed in aperture, pulp storage tank dress fluid encapsulation material；Fluid Sealing material point two types are made respectively
Make；Fluid encapsulation material A is clay, the mixture of water；1.03 ~ 2.0g/cm3 of proportion.Fluid encapsulation material B is by bentonite, hair
Infusion, water composition, 1.02 ~ 1.11g/cm3 of proportion, 18 ~ 25Pa.s of viscosity, the foaming agent by sodium alkyl benzene sulfonate 45-46%,
Sodium sulfate of polyethenoxy ether of fatty alcohol 13-14%, lauryl sodium sulfate (K12) 23-24%, disodium ethylene diamine tetraacetate 12-
15%th, Tea Saponin 7-8% is formed.
Perforate uses fluid encapsulation material A when creeping into；Use fluid encapsulation material B when being drilled into solution cavity lost-circulation zone instead.
Step 3: in drilling tool tripping in orifice tube, air compressor machine drilling is opened, observes scum pipe deslagging situation, it is ensured that reacting cycle
Normal operation, water is suitably added with sharp deslagging by geomantic omen tap when miscellaneous fill layer is crept into；
Step 4: in down-the-hole hammer reverse circulating borer drilling procedure, the encapsulant drained in drilling in pulp storage tank enters aperture
In, bottom hole and the vertical height of fluid encapsulation material upper surface are more than or equal to 15 meters；
Mud liquid level stabilizing at orifice tube is kept during preceding 30 meters of drillings；
As hole depth increases, the mud magnitude of recruitment with reference to needed for above single drill pipe drilling suitably supplements, mud in principle guarantee hole
Starch Level height 15 ~ 30 meters, bore meet solution cavity when use fluid encapsulation material B instead and increase injection rate quickly through；
Step 6: in drilling process, according to supervision requirement deviational survey；Inclinometer is put into the scum pipe of double-wall drill pipe center and examined
Survey, measurement takes out inclinometer after terminating and continues to creep into；
Step 7: drilling by scum pipe injects foam mud into hole after terminating, marginal not side carries brill.Carry and being drilled into, drillman
Skill terminates.
Case 3）, certain hydraulic engineering geological state is：0 ~ 100 meter or so of top is uncemented drift sand, flour sand and gravel
Rock layers, 100 ~ 160 meters are lime rock stratum and have big fault belt；Design requirement 160 meters of hole depth of drilling, aperture 127, drilling
Perpendicularity is less than 2%.The methods of early stage matches somebody with somebody thickened drilling fluid and pipe-following drilling using rock-core borer is undesirable, after use work of the present invention instead
Process is smoothly solved, as follows using the inventive method step：
Step 1: clean-out machine matches somebody with somebody 108 double-wall drill pipes+through reverse circulation impactor+127 reverse circulation drill bit mounting and adjusting just
Position；
Step 2: embedded orifice tube, with inclinometer inspection and does positive fixation, a pulp storage tank is built around aperture, passes through slurry storing tank
The sealing village prepared material is put into standby in pulp storage tank；Fluid encapsulation material refers to waterglass class clay-free drilling fluid；It is matched somebody with somebody
Fang Wei：Waterglass 6 ~ 9%, ammonium sulfate 0.5 ~ 1%, pitch 0.5 ~ 1%, anti-sloughing agent 0.05 ~ 0.1%, polyvinyl lactam 0.05 ~ 0.1%；
Solution density：1.03 g/cm3, 20 ~ 25s of viscosity,
Step 3: in drilling tool tripping in orifice tube, air compressor machine drilling is opened, observes scum pipe deslagging situation, it is ensured that reacting cycle is normal
Operation；Preferably（In Fig. 2）, the drilling tool in described step three includes reverse circulation drill bit 5, sealing shroud 6, sealing shroud 6 with it is anti-
Circulate drill bit 6 to connect into card key, drilling rod turns clockwise during drilling, and sealing shroud and reverse circulation drill bit are connected to one by card key
Rise, be an overall structure；Drilling rod rotate counterclockwise when carrying brill, the whiz card key of reverse circulation drill bit 6, which can depart from sealing shroud, bores
Head.
Step 4: in down-the-hole hammer reverse circulating borer drilling procedure, the encapsulant drained in drilling in pulp storage tank enters
In aperture,
Liquid level stabilizing at orifice tube is kept during preceding 30 meters of drillings；
As hole depth increases, with reference to above single drill pipe drilling needed for mud magnitude of recruitment suitably supplement, principle guarantee drilling tool with
Mud liquid level is more than 15 meters in hole.
Step 5: when being drilled into fault belt, fluid encapsulation material composition, formula are adjusted：Clay, carboxymethyl cellulose
（CMC）, polyacrylamide（PHP）, water, increase injection rate simultaneously pass rapidly through.
Step 6: in drilling process, according to supervision requirement deviational survey；Inclinometer is put into the scum pipe of double-wall drill pipe center
Detection, measurement take out inclinometer after terminating and continue to creep into；
Step 7: carrying brill behind whole hole, bore process terminates.
Case 4）Hole engineering is drawn in certain height spray, and geological state is：0 ~ 15 meter of top is miscellaneous fill layer, there is the cm of stone 50 ~ 80 that floats,
15 ~ 60 be that sand-pebble layer contains drift sand, gravel, and 60 ~ 70 meters are severely-weathered limestone；Design requirement drills into 0.5 meter of rock, hole
Footpath is more than 115mm, and drilling hole deviation is less than 2%.The methods of early stage matches somebody with somebody thickened drilling fluid and pipe-following drilling using rock-core borer because effect is low and
Abandon, after use present invention process method instead and smoothly completed, it is as follows using the inventive method step：
Step 1: clean-out machine matches somebody with somebody 108 double-wall drill pipes+through reverse circulation impactor+127 reverse circulation drill bit mounting and adjusting just
Position；
Step 2: embedded orifice tube, with inclinometer inspection and does positive fixation, a pulp storage tank is built around aperture, passes through slurry storing tank
The sealing village prepared material is put into standby in pulp storage tank；Fluid encapsulation material is by bentonite（5~8%）、PHP（0.04~
0.05%）, caustic soda（0.2~0.3%）, water composition.
Step 3: in drilling tool tripping in orifice tube, air compressor machine drilling is opened, observes scum pipe deslagging situation, it is ensured that reacting cycle
Normal operation.
Step 4: in down-the-hole hammer reverse circulating borer drilling procedure, the encapsulant drained in drilling in pulp storage tank enters
In aperture,
Liquid level stabilizing at orifice tube is kept during preceding 30 meters of drillings；
As hole depth increases, with reference to above single drill pipe drilling needed for mud magnitude of recruitment suitably supplement, principle guarantee drilling tool with
Mud liquid level is more than 15 meters in hole.
Step 5: mud injection rate can be increased when being drilled into lost-circulation zone in right amount and passed rapidly through.
Step 6: in drilling process, according to supervision requirement deviational survey；Inclinometer is put into the scum pipe of double-wall drill pipe center
Detection, measurement take out inclinometer after terminating and continue to creep into；
Step 7: scum pipe at rig gooseneck is unloaded into replacing Grouting Pipe behind whole hole, will from double-wall drill pipe inner tube slagging channel
Filler hand-hole bottom is irrigated, takes the method carried when filling to carry brill.Carry and being drilled into, bore process terminates.
Case 5）, certain water well drilling project, geological state is：0 ~ 60 meter is ploughed soil and fine sand layer, 60 ~ 90 meters of basalt
Layer, 90 ~ 100 meters of shale layers, 100 meters ~ 120 meters basaltic layers, 120 ~ 130 meters of shale layers, 130 ~ 160 meters of basaltic layers, 160 ~
180 meters of mud stone and basalt mutually adulterate, catalase.Design the mm of hole diameter 273,180 meters of well depth, lower 219 well casings.This area
Originally there is water source at 60 meters and 100 meters, rear because more than 100 meters of arid no water layer, this is in drilling process leakage sternly
Weight, conventional drilling method drilling is difficult, using present invention process method, prepares foam mud and smoothly completes drilling well task.Using
The inventive method step is as follows：
Step 1: clean-out machine matches somebody with somebody 108 double-wall drill pipes+elastic blocking device+through reverse circulation impactor+273 reverse circulation drilling
Head mounting and adjusting is in place；
Step 2: burying orifice tube and doing positive fixation, a pulp storage tank is built around aperture, the sealing that will be prepared by slurry storing tank
Village's material is put into standby in pulp storage tank；Described fluid encapsulation material is made up of clay, foaming agent, aqueous mixtures, and proportion 1.22 ~
1.31g/cm3,20 ~ 25Pa.s of viscosity, foaming agent include adding sodium alkyl benzene sulfonate plus sodium sulfate of polyethenoxy ether of fatty alcohol, ten
Sodium dialkyl sulfate (K12)；
By weight percentage, sodium alkyl benzene sulfonate 45-55%, sodium sulfate of polyethenoxy ether of fatty alcohol 20-25%, dodecyl sulphur
Sour sodium (K12) 21-24%.
Step 3: in drilling tool tripping in orifice tube, air compressor machine drilling is opened, observes scum pipe deslagging situation, it is ensured that reacting cycle
Normal operation.
Step 4: in down-the-hole hammer reverse circulating borer drilling procedure, the encapsulant drained in drilling in pulp storage tank enters
In aperture,
Step 5: mud injection rate can be increased when being drilled into lost-circulation zone in right amount and passed rapidly through.
Step 6: whole hole carries brill, drilling terminates, and installs well casing.
Fluid encapsulation material content of the present invention only lists preferable embodiment, and innovative point of the invention is profit
Drilling tool and borehole sidewall are sealed with fluid encapsulation material, the operating efficiency of down-the-hole hammer reverse circulating rig greatly improved,
But protection scope of the present invention is not limited thereto, professional's the method according to the invention design of any the art adds
, all should be within protection scope of the present invention to replace or change.
Claims (10)
1. a kind of down-the-hole hammer reverse circulating drilling construction method of Fluid Sealing, it is characterized in that：Described method comprises the following steps：
Step 1: down-the-hole hammer reverse circulating rig mounting and adjusting is in place；
Step 2: pulp storage tank is set around aperture, pulp storage tank dress fluid encapsulation material；
Step 3: under the drilling tool of down-the-hole hammer reverse circulating rig in man-hole opening, air compressor machine drilling is opened；
Step 4: in down-the-hole hammer reverse circulating borer drilling procedure, the encapsulant drained in drilling in pulp storage tank enters aperture
In.
2. a kind of down-the-hole hammer reverse circulating drilling process construction method of Fluid Sealing according to claim 1, it is characterized in that:
Described fluid encapsulation material includes bentonite and the mixture or clay of water and the mixture of water or Solid Free solution.
3. a kind of down-the-hole hammer reverse circulating drilling process construction method of Fluid Sealing according to claim 1 or 2, its feature
It is:In described step four, the fluid encapsulation material of pulp storage tank is under self gravitation effect in inflow orifice.
4. a kind of down-the-hole hammer reverse circulating drilling process construction method of Fluid Sealing according to claim 1 or 2, its feature
It is:In described step four, bottom hole and the vertical height of fluid encapsulation material upper surface are more than or equal to 15 meters.
5. a kind of down-the-hole hammer reverse circulating drilling process construction method of Fluid Sealing according to claim 2, it is characterized in that：
The bentonite, water mixture in also include foaming agent；
The foaming agent includes sodium alkyl benzene sulfonate, sodium sulfate of polyethenoxy ether of fatty alcohol, lauryl sodium sulfate (K12), second
Edetate disodium, Tea Saponin；
By weight percentage, sodium alkyl benzene sulfonate 45-55%, sodium sulfate of polyethenoxy ether of fatty alcohol 12.5-15%, dodecyl
Sodium sulphate (K12) 18-24%, disodium ethylene diamine tetraacetate 10-15%, Tea Saponin 6.5-8%.
6. a kind of down-the-hole hammer reverse circulating drilling process construction method of Fluid Sealing according to claim 2, it is characterized in that：
The mixing of the clay and water also includes foaming agent；
Above-mentioned foaming agent includes sodium alkyl benzene sulfonate, sodium sulfate of polyethenoxy ether of fatty alcohol, lauryl sodium sulfate (K12)；
By weight percentage, sodium alkyl benzene sulfonate 45-55%, sodium sulfate of polyethenoxy ether of fatty alcohol 20-25%, dodecyl sulphur
Sour sodium (K12) 21-24%.
7. a kind of down-the-hole hammer reverse circulating drilling process construction method of Fluid Sealing according to claim 2, it is characterized in that：
The bentonite, water mixture in also include CMC；
The CMC weight is the 0.05 ~ 0.15% of bentonite weight.
8. a kind of down-the-hole hammer reverse circulating drilling process construction method of Fluid Sealing according to claim 2, it is characterized in that：
The Solid Free solution is waterglass class clay-free drilling fluid；
Waterglass class clay-free drilling fluid formula be waterglass 6 ~ 9%, ammonium sulfate 0.5 ~ 1%, pitch 0.5 ~ 1%, anti-sloughing agent 0.05 ~
0.1%+, polyvinyl lactam 0.05 ~ 0.1%, water.
9. a kind of down-the-hole hammer reverse circulating drilling process construction method of Fluid Sealing according to claim 2, it is characterized in that：
The bentonite, water mixture in also include PHP, by weight bentonite 5 ~ 8%, PHP0.04 ~ 0.07%.
10. a kind of down-the-hole hammer reverse circulating drilling process construction method of Fluid Sealing according to claim 2, its feature
It is：The bentonite, water mixture in also include PHP, caustic soda, by weight bentonite 5 ~ 8%, PHP0.04 ~ 0.05%, 0.2
~0.3%。
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| CN108952622B (en) * | 2018-07-09 | 2020-07-10 | 北京泰利新能源科技发展有限公司 | Quick leaking stoppage and collapse prevention process for drilling in downhole of geothermal well |
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| CN116497814A (en) * | 2023-06-01 | 2023-07-28 | 山东鼎推岩土工程有限公司 | Green and efficient piling and wall forming construction method for soft soil and hard rock combined stratum |
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