CA1132784A - Rapid-setting dry packing mix for eliminating bore hole troubles and method of manufacture thereof - Google Patents
Rapid-setting dry packing mix for eliminating bore hole troubles and method of manufacture thereofInfo
- Publication number
- CA1132784A CA1132784A CA331,076A CA331076A CA1132784A CA 1132784 A CA1132784 A CA 1132784A CA 331076 A CA331076 A CA 331076A CA 1132784 A CA1132784 A CA 1132784A
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- Canada
- Prior art keywords
- weight
- powder
- mix
- cement
- rapid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
-
- 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
- C09K8/42—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells
- C09K8/46—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells containing inorganic binders, e.g. Portland cement
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
- Sealing Material Composition (AREA)
- Disintegrating Or Milling (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
The present invention provides a rapid-setting dry packing mix for eliminating bore hole troubles prepared on the basis of a powder gypsum-cement binder comprising: from 40 to 50% by weight of powder cement; from 50 to 60% by weight of powder binder selected from the group consisting of gypsum and alabaster; and from 0.01 to 3.0% by weight of powder barium hexaferrite having a particle size commensurate with the particles of the binder. The present invention also provides a method including from 5 to 15% by weight of silica gel. The mix has good rapid strength gain, provides a strong bond with rocks forming the walls of the holes and retains its active properties on prolonged storage even under adverse conditions.
The present invention provides a rapid-setting dry packing mix for eliminating bore hole troubles prepared on the basis of a powder gypsum-cement binder comprising: from 40 to 50% by weight of powder cement; from 50 to 60% by weight of powder binder selected from the group consisting of gypsum and alabaster; and from 0.01 to 3.0% by weight of powder barium hexaferrite having a particle size commensurate with the particles of the binder. The present invention also provides a method including from 5 to 15% by weight of silica gel. The mix has good rapid strength gain, provides a strong bond with rocks forming the walls of the holes and retains its active properties on prolonged storage even under adverse conditions.
Description
1132~84 BACl~GROU~ 0~ N'~ION
1~ ~ield of the In~ention The invention relates to the ~ield of hole boring7 and more particularly7 to a rapid-setti~g packing mix ~or eliminat-in~ bore hole troubles and to a method o~ ma~ufacturi~g there-o~.
~ he invention can be employed i~ geological survey9 civilen~ineerin~ sur~eysg petroleum and gas production and drilling a~d blasti~g operations ~or eliminating zones of geological troubles involvin~ absorption o~ flushi~g ~luid, water in~low or unstable spacing o~ holes~
.
1~ ~ield of the In~ention The invention relates to the ~ield of hole boring7 and more particularly7 to a rapid-setti~g packing mix ~or eliminat-in~ bore hole troubles and to a method o~ ma~ufacturi~g there-o~.
~ he invention can be employed i~ geological survey9 civilen~ineerin~ sur~eysg petroleum and gas production and drilling a~d blasti~g operations ~or eliminating zones of geological troubles involvin~ absorption o~ flushi~g ~luid, water in~low or unstable spacing o~ holes~
.
2. Description o~ the Prior Arb : ~here is known a dry pacXlng mix for eliminatinO bore hole troubles prepared on the basis of a powder gypsum-cement binder con~ainin~ 40 to 50 per cent by wei6h~ aluminous cement and 50 to 60 per ce~t by wei~ht of gypsum or alabaster (~ee, ~or example, Collected works o~ the All-Union ~e~earch Institute ~or :~
Surveying Methods and Equipment under the title "Metodika i te~hnika razvedki" /Surve~ing Methods and E~uipment/, ~06 197~, ~eningrad, pp. 6? 69~
~ he known mix is to be delivered dry to bore hole trouble æones and prepared directl~ at the site of application upon : walls o~ bore hole to ~orm a lining. ~ ~
Once the mi~ has been prepared in the hole and ~he lining ~ormed, drilling tools are pulled out o~ the hole to deliver : . , :
, ~ ~ 3 ~
a new portion of ~he rapid-set~in~ mix or Ior proceeding with the bori~ of the holeO
~ s the drilling tool is pulled out, there occurs a piston ef~ect 9 i. e. a vacuum is built beneath the tool to create a pressure gradient in a liquid inside and outside of the lining~
a high hydrostatic pressure xemaining outside of the lining, but dropping inside the li~ing~
One~sided pressure promotes ~ailure o~ the lining, since the rapid-setti~g mix ~rom which the lining is buil~ presents neither adequate gain strength nor su~icient bonding to rocks which mal~e up the walls of the hole.
The piston e~ect may bring about a complete separation o~
the lininæ ~rom hole walls and out o~ cracks.
A similar result can be caused by vibration and pulsation o~ pressures in a medium involved due to rotation o~ drilling ~ool and string o~ rods in drilli~g o~ a rapid-setting packing mix o~ the known composi~ion which ~ails to provide within a ~ew minutes the necessary gain in strength ~or eliminating bore hole troubles.
In addition, the rapid-setti~g dry packing mix ~uickl~
loses activity i~ storage bacause of the interaction of cement and gypsum with moisture contained in ~he surrounding air.
~ he kno~n rapid-settlng dry packi~g mix ~or eliminating bors hole troubles is obtained by mec~anical mixi~g o~ powder cement and gypsum or alabaster ta~en in speci~ied proportions~
However, the above mixing method ~ails to provide the necessary uniformity o~ distribution o~ cement and gypsum or
Surveying Methods and Equipment under the title "Metodika i te~hnika razvedki" /Surve~ing Methods and E~uipment/, ~06 197~, ~eningrad, pp. 6? 69~
~ he known mix is to be delivered dry to bore hole trouble æones and prepared directl~ at the site of application upon : walls o~ bore hole to ~orm a lining. ~ ~
Once the mi~ has been prepared in the hole and ~he lining ~ormed, drilling tools are pulled out o~ the hole to deliver : . , :
, ~ ~ 3 ~
a new portion of ~he rapid-set~in~ mix or Ior proceeding with the bori~ of the holeO
~ s the drilling tool is pulled out, there occurs a piston ef~ect 9 i. e. a vacuum is built beneath the tool to create a pressure gradient in a liquid inside and outside of the lining~
a high hydrostatic pressure xemaining outside of the lining, but dropping inside the li~ing~
One~sided pressure promotes ~ailure o~ the lining, since the rapid-setti~g mix ~rom which the lining is buil~ presents neither adequate gain strength nor su~icient bonding to rocks which mal~e up the walls of the hole.
The piston e~ect may bring about a complete separation o~
the lininæ ~rom hole walls and out o~ cracks.
A similar result can be caused by vibration and pulsation o~ pressures in a medium involved due to rotation o~ drilling ~ool and string o~ rods in drilli~g o~ a rapid-setting packing mix o~ the known composi~ion which ~ails to provide within a ~ew minutes the necessary gain in strength ~or eliminating bore hole troubles.
In addition, the rapid-setti~g dry packing mix ~uickl~
loses activity i~ storage bacause of the interaction of cement and gypsum with moisture contained in ~he surrounding air.
~ he kno~n rapid-settlng dry packi~g mix ~or eliminating bors hole troubles is obtained by mec~anical mixi~g o~ powder cement and gypsum or alabaster ta~en in speci~ied proportions~
However, the above mixing method ~ails to provide the necessary uniformity o~ distribution o~ cement and gypsum or
- 3 -. ~ , . . .
.
.' . . ~ ' :
.-; ' .'- .
7 ~ ~
alabaster throu~hou~ ~he mi~ his leading to the failure of the struc~-ure of the artilicial s~one lining being fo~raed~
the leachin~ of ~he material o~ the lining and, consequentlyt to a ~uick loss of tightness (t~o or three da~s after).
~ dditionallyg the existing techni~ue for manufacturi~g the known dry mix provides no means for improving the quality thereo~, since it proves impossible to introduce the necessary additives in small amounts and to distribute them u~i~ormly throughout the mix~
SUDIMAE~Y 0~ ~ION
It is therefore an objec~ o~ the invention to provide a rapid-setting dry packing mi~r possessing an adequately rapid strength gain rate~
~ nother object of the invention is to provide a mi~ featu-ri~g a sufficiently strong bond-to rocks making up walls of holes.
Yet another object of the invention is to provide a rapid-setting dry packing mlx which will retai~ its active properties in prolonged storage even under adverse conditions.
A further object of the i,~vention is to provide a method for manufacturir~ a rapid-setting dry packing mi~ ~or eliminat-ing bore hole troubles ensurin~ a required uniformity in dis-tribution of cement and gypsum or alabaster throughout the mi~
so as to avoid the ~ailure of the structure o~ the arti~icial stone of the linin~ bei~g ~ormed and the leachi~g o~ the material o~ the lining.
.
~ 4 ~
.
.
, -, ' ~32784 ~ n additional objcct of the in~ention is to prGvide a method for preparing the mix ensuring the improvement in the quality thereo~ throug~ introduc~ion o~ speci~ic additives in small amounts and a uniform distribution thereo~ through-out the mix~
The above and other objects are attained in a rapid-sett-inS dry paclcing ~i2 ~or eliminatin~ bore hole troubles manufac-tured on the basis of a powder gypsum-cement binder contai~in~
~0 to 50 per cent by ~eight of cement and 50 to 60 per cent by weight o~ gypsum or alabaster, wherein7 according to the inven-tion, there are contained 0.01 to ~.0 per ce~t b~ ~eight of CO~me~S,~r~L~e i-~ barium hexa~errite powder in particles of a size common~ur~ble-with that o~ particles of the binder.
It is advisable to add 5 to 15 per ce~t by weight of sili-ca gel to the mix.
~ he above and other obj~cts are also attained in a method for manufacturing the mix consisting in that th~ gypsum-cement binder is obtained by mechanical mixing of powder cem~t and gypsum or alabaster baken in requixed proportions9 whexein, according to the ln~ention, the components are mixed in an altèrnating electromagnetic ~ield9 whereas the barium hexafer-rite powder is introduced a~ the e~pense o~ abrasion of work-ing tools which axe magnetized pellets prepared on the basis o~ barium hexaferrite.
It is advisable to emplo~ pellets prepared solely from barium hexaferrite.
. ' :' ' ' . -7~3~
No less advanta~eous is to employ pellets manu~actured o~
barium hexa~errite ~lith inert additives.
It is preferable to have a proportio~ of pellets of greater abradabilit~, The rapid-setting dry packing mi~ for eliminating bore hole troubles and the method for the manu~acture thereo~ ensure a required strength gaL~ rate, a high bonding to rock making up hole walls and a long s~orage life even u~der adverse conditions.
D~SCRIPTION 0~` THE P~E~RED ~MBQDIM~
A rapid-setting dry packing mi~ ~or eliminating bore hole troubles is prepared o~ the basis o~ a gypsum-r-ement binder containing 40 to 50 per cen-t by weight of cement and 50 to 60 per cent by weight o~ gypsum or alabaster.
In addition, ~he mix contai~s 0.01 to 3.0 per cent by weight o~ powder barium kexa~errite in particles of a size com-Al ~e~f~rD~e A ~uu=u~ ith that of particles o~ the binder.
A mix with less than 0.01 per cent by weight barium hexa-ferrite ~ails to provide required strength and bonding charac-teristics.
Introduction lnto the mix o~ more than 3 per cen~ by weight of barium hexa~exrite substantiall~ retards the begin~ing o~
setti~g and lowers the strength o~ the lini~g.
~ The mix can additionally carry from 5 to 15 per cen~ by weight o~ silica gel introduced either as a powder or pellets, he ~ addition of silica ~sel i~crea es the storage li~e o~
the m:LY, , _ :
-3~ 7~3~
~ 'he rapid-setting dry packing mix according to the in~en-tion for elimi~ting bore hole troubles is prepared in the m~nner below.
Po~sder cement and gypsum or alabaster taken in speci~ied proportions are mixed in a chamber in an alternating electro-magnetic ~ield.
~ he addition to the mix o~ barium hexaferrite is eL~ected through abrasion o~ pellets in the course of stirring in the chamber.
-The barium hexaferrite pellets can be prepared either en-tirely o~ barium hexaferrite or with iner-~ admix*ures It proves to be advantageous to have a proportion o~ pel-lets o~ a greater abradability.
The invention will no~ be described with re~erence to the following illustrative ~xamples~
Properties o~ the rapid-setting dry packing mix are pre-sen~ed in Tables 1 through 3 accompan~in~ the examples.
Example 1 Components o~ the mix 50 per cent o~ cement and 50 per cent o~ alabster, taken in an a~ount of 2 k~, were charged into a c~lindrical chamber 100 mm in diameter holdi~g 500 g o~
ma~netized pellets o~ barium he~a~errite 5 mm in diameter.
~ he chamber is encompassed with an electroma~netic coil, or solenoid, having in cross section a height o~ 80 mm and a width of 45 mm with wound copper wire 2 mm in diame~er~
.
-, , :
: . ~
.
- -- - : :~ . . . ... . . .
.
- .
~L~3Z~78~
Once the electroma~netic coil ~as connected to a 220 V, 50 IIz (cp~) mains, -the magnetized balls moved in chao~ic manrer ~o stir the mi~ compone~ts i~ the ch~.ber.
~fter a te~-second period of ~rea~men~ ~he iollo~ ir~ mi~
was obtained1 co~taini~O i~ per cen~ b~ wei~ht:
alabaster 49~995 cement 49.995 barium hexa~errite 0.01 ~xample 2 To raise the content o~ barium hexa-~errite~ lO0 G of similar pelleks ha~ing a grea~ abradability (manufactured at a ~emperature by 50C lo~er than the r~commended - 1250C -value) were added to the remaining 497.8 g of pellets (~xample l) All the other process parameters were unaltered.
Af~er a ten-seco~d period o~ treatment9 ~he ~ollowing mix was obtained, containing in per cent b~ weight:
alabaster 49.95 -cement ~9.95 barium he~afexrite 0~1 1 , ~xample 3~
After a ~ifty-seco~d period of ~reatme~t of 2 l~g of mix~ure composed o~ 50 per ce~t by ~ei~ht o~ cement an~ 50 per ce~t by weight o~ alabas~er9 a mi~ was obtaI~ed, o~ the ~ollow-ing composition, in per cent b~ weight:
'. . .
`.~;- . ' . ": ' `
: : ' 1~3Z784 ccmen~. L~9.5 alabas-ter 49.5i barium hexafexrite 0.1 All the o~her parame~ers of ~he process described in thei E~mpl~ 1 were unalb~r~d.
~xample ~
After a ten-second period o~ tr~a~ment o~ 2 kg of miYture composed o~ 50 per cen~ b~ wei~ht o~ cemen~ and 50 ~er cent by wei~ht o~ alabastera a mix was obtai~ed o~ the follo~Jing compositionp in per cent by weight:
alabaster 48.5 cement 48.5 barium hexa~errite 3 Subseque~tl~, the settin~ time a.nd the strength in uni-a~ial compression of the above mi~es were determined.
~he mixes were tested ~or setting time by the ~ica~ needle method9 whereas tests ~or strength in unia~ial compr~ssio~ were carried out on cubes measuring 7 x 7 ~ 7 cm. The results o~ ths : tests are listed in the table below:
~ ' .
:
' ' :, " '` ' ' ',: . ' . ' .
' ' ' ' , ' ' 3 ~L32~34 Table 1 Packing Mix Settin~ Time and Stren~th in Uniaxial Compression, kg/'cm2 5 No. of Example Mix composi- Sett~ng Strength in uniaxial compres-tion: :~mesion, kg/cm2 cement-C s~art end hardening co~ritions alabaSter-A~ (mln ) ~min ) . air hydraulic Eerrite-H 1: 2 3 1 2 3 per cent byhr hrs hrs hr hrs hrs weight~ - _ 1. Check C - 50 sample A - 50 6 8 17 26 70 22 2075 2. Example 1 . C - 49.995 A - 49.995 H - Q.01 7 9 18 26 70 25 2075 3. Example 2 C - 49.95 A - 49.95 ~ - 0.01 14 15 60 148 198 75 70 180
.
.' . . ~ ' :
.-; ' .'- .
7 ~ ~
alabaster throu~hou~ ~he mi~ his leading to the failure of the struc~-ure of the artilicial s~one lining being fo~raed~
the leachin~ of ~he material o~ the lining and, consequentlyt to a ~uick loss of tightness (t~o or three da~s after).
~ dditionallyg the existing techni~ue for manufacturi~g the known dry mix provides no means for improving the quality thereo~, since it proves impossible to introduce the necessary additives in small amounts and to distribute them u~i~ormly throughout the mix~
SUDIMAE~Y 0~ ~ION
It is therefore an objec~ o~ the invention to provide a rapid-setting dry packing mi~r possessing an adequately rapid strength gain rate~
~ nother object of the invention is to provide a mi~ featu-ri~g a sufficiently strong bond-to rocks making up walls of holes.
Yet another object of the invention is to provide a rapid-setting dry packing mlx which will retai~ its active properties in prolonged storage even under adverse conditions.
A further object of the i,~vention is to provide a method for manufacturir~ a rapid-setting dry packing mi~ ~or eliminat-ing bore hole troubles ensurin~ a required uniformity in dis-tribution of cement and gypsum or alabaster throughout the mi~
so as to avoid the ~ailure of the structure o~ the arti~icial stone of the linin~ bei~g ~ormed and the leachi~g o~ the material o~ the lining.
.
~ 4 ~
.
.
, -, ' ~32784 ~ n additional objcct of the in~ention is to prGvide a method for preparing the mix ensuring the improvement in the quality thereo~ throug~ introduc~ion o~ speci~ic additives in small amounts and a uniform distribution thereo~ through-out the mix~
The above and other objects are attained in a rapid-sett-inS dry paclcing ~i2 ~or eliminatin~ bore hole troubles manufac-tured on the basis of a powder gypsum-cement binder contai~in~
~0 to 50 per cent by ~eight of cement and 50 to 60 per cent by weight o~ gypsum or alabaster, wherein7 according to the inven-tion, there are contained 0.01 to ~.0 per ce~t b~ ~eight of CO~me~S,~r~L~e i-~ barium hexa~errite powder in particles of a size common~ur~ble-with that o~ particles of the binder.
It is advisable to add 5 to 15 per ce~t by weight of sili-ca gel to the mix.
~ he above and other obj~cts are also attained in a method for manufacturing the mix consisting in that th~ gypsum-cement binder is obtained by mechanical mixing of powder cem~t and gypsum or alabaster baken in requixed proportions9 whexein, according to the ln~ention, the components are mixed in an altèrnating electromagnetic ~ield9 whereas the barium hexafer-rite powder is introduced a~ the e~pense o~ abrasion of work-ing tools which axe magnetized pellets prepared on the basis o~ barium hexaferrite.
It is advisable to emplo~ pellets prepared solely from barium hexaferrite.
. ' :' ' ' . -7~3~
No less advanta~eous is to employ pellets manu~actured o~
barium hexa~errite ~lith inert additives.
It is preferable to have a proportio~ of pellets of greater abradabilit~, The rapid-setting dry packing mi~ for eliminating bore hole troubles and the method for the manu~acture thereo~ ensure a required strength gaL~ rate, a high bonding to rock making up hole walls and a long s~orage life even u~der adverse conditions.
D~SCRIPTION 0~` THE P~E~RED ~MBQDIM~
A rapid-setting dry packing mi~ ~or eliminating bore hole troubles is prepared o~ the basis o~ a gypsum-r-ement binder containing 40 to 50 per cen-t by weight of cement and 50 to 60 per cent by weight o~ gypsum or alabaster.
In addition, ~he mix contai~s 0.01 to 3.0 per cent by weight o~ powder barium kexa~errite in particles of a size com-Al ~e~f~rD~e A ~uu=u~ ith that of particles o~ the binder.
A mix with less than 0.01 per cent by weight barium hexa-ferrite ~ails to provide required strength and bonding charac-teristics.
Introduction lnto the mix o~ more than 3 per cen~ by weight of barium hexa~exrite substantiall~ retards the begin~ing o~
setti~g and lowers the strength o~ the lini~g.
~ The mix can additionally carry from 5 to 15 per cen~ by weight o~ silica gel introduced either as a powder or pellets, he ~ addition of silica ~sel i~crea es the storage li~e o~
the m:LY, , _ :
-3~ 7~3~
~ 'he rapid-setting dry packing mix according to the in~en-tion for elimi~ting bore hole troubles is prepared in the m~nner below.
Po~sder cement and gypsum or alabaster taken in speci~ied proportions are mixed in a chamber in an alternating electro-magnetic ~ield.
~ he addition to the mix o~ barium hexaferrite is eL~ected through abrasion o~ pellets in the course of stirring in the chamber.
-The barium hexaferrite pellets can be prepared either en-tirely o~ barium hexaferrite or with iner-~ admix*ures It proves to be advantageous to have a proportion o~ pel-lets o~ a greater abradability.
The invention will no~ be described with re~erence to the following illustrative ~xamples~
Properties o~ the rapid-setting dry packing mix are pre-sen~ed in Tables 1 through 3 accompan~in~ the examples.
Example 1 Components o~ the mix 50 per cent o~ cement and 50 per cent o~ alabster, taken in an a~ount of 2 k~, were charged into a c~lindrical chamber 100 mm in diameter holdi~g 500 g o~
ma~netized pellets o~ barium he~a~errite 5 mm in diameter.
~ he chamber is encompassed with an electroma~netic coil, or solenoid, having in cross section a height o~ 80 mm and a width of 45 mm with wound copper wire 2 mm in diame~er~
.
-, , :
: . ~
.
- -- - : :~ . . . ... . . .
.
- .
~L~3Z~78~
Once the electroma~netic coil ~as connected to a 220 V, 50 IIz (cp~) mains, -the magnetized balls moved in chao~ic manrer ~o stir the mi~ compone~ts i~ the ch~.ber.
~fter a te~-second period of ~rea~men~ ~he iollo~ ir~ mi~
was obtained1 co~taini~O i~ per cen~ b~ wei~ht:
alabaster 49~995 cement 49.995 barium hexa~errite 0.01 ~xample 2 To raise the content o~ barium hexa-~errite~ lO0 G of similar pelleks ha~ing a grea~ abradability (manufactured at a ~emperature by 50C lo~er than the r~commended - 1250C -value) were added to the remaining 497.8 g of pellets (~xample l) All the other process parameters were unaltered.
Af~er a ten-seco~d period o~ treatment9 ~he ~ollowing mix was obtained, containing in per cent b~ weight:
alabaster 49.95 -cement ~9.95 barium he~afexrite 0~1 1 , ~xample 3~
After a ~ifty-seco~d period of ~reatme~t of 2 l~g of mix~ure composed o~ 50 per ce~t by ~ei~ht o~ cement an~ 50 per ce~t by weight o~ alabas~er9 a mi~ was obtaI~ed, o~ the ~ollow-ing composition, in per cent b~ weight:
'. . .
`.~;- . ' . ": ' `
: : ' 1~3Z784 ccmen~. L~9.5 alabas-ter 49.5i barium hexafexrite 0.1 All the o~her parame~ers of ~he process described in thei E~mpl~ 1 were unalb~r~d.
~xample ~
After a ten-second period o~ tr~a~ment o~ 2 kg of miYture composed o~ 50 per cen~ b~ wei~ht o~ cemen~ and 50 ~er cent by wei~ht o~ alabastera a mix was obtai~ed o~ the follo~Jing compositionp in per cent by weight:
alabaster 48.5 cement 48.5 barium hexa~errite 3 Subseque~tl~, the settin~ time a.nd the strength in uni-a~ial compression of the above mi~es were determined.
~he mixes were tested ~or setting time by the ~ica~ needle method9 whereas tests ~or strength in unia~ial compr~ssio~ were carried out on cubes measuring 7 x 7 ~ 7 cm. The results o~ ths : tests are listed in the table below:
~ ' .
:
' ' :, " '` ' ' ',: . ' . ' .
' ' ' ' , ' ' 3 ~L32~34 Table 1 Packing Mix Settin~ Time and Stren~th in Uniaxial Compression, kg/'cm2 5 No. of Example Mix composi- Sett~ng Strength in uniaxial compres-tion: :~mesion, kg/cm2 cement-C s~art end hardening co~ritions alabaSter-A~ (mln ) ~min ) . air hydraulic Eerrite-H 1: 2 3 1 2 3 per cent byhr hrs hrs hr hrs hrs weight~ - _ 1. Check C - 50 sample A - 50 6 8 17 26 70 22 2075 2. Example 1 . C - 49.995 A - 49.995 H - Q.01 7 9 18 26 70 25 2075 3. Example 2 C - 49.95 A - 49.95 ~ - 0.01 14 15 60 148 198 75 70 180
4. Example 3 C - 49.5 A - 49.5 H - 1.0 14 16 27 36
5. Example 4 C - 48.5 A - 48.5 H - 3.0 20 25 18 22 -- -- -- --~5 As is readily apparent from this table, the best physico-chemical properties are those of a packing mix containing:
cement, 49.95 per cent by weight; alabaster, 49.95 per cent by weight; and barium hexaferrite, 0.1 per cent by weight~
::
~ 35 ~ :
` i ~
i ~ ~
~31 3~Z~784 A packin~ mix containing: cement~ 49,995 per cent by weight; alabaster, 49 995 per cent by weight; and bariu~ hexa ferrite, 0.01 per cent by weight di~f~ers very little in prop erties from the check sample, whereas a packing mix having the 5 following composition: cement, 48. 5 per cent by weight; ala-baster, 48.5 per cent by weight; and barium hexaferrite, 3.0 per cent by weight features a substantially longer setting time and lower strength.
10 Therefore, further tests concerned the packing mix having the best physicochemical properties, or the mix containing:
cement, 49.95 per cent by weight; alabaster, 49.95 per cent by weight; and barium hexaferrite, 0.1 per cent by weight.
15 Results of tests for strength of bonding of cement stone to rock (in tension~ are listed in Table 2, where C - cement, A - alabaster, H - barium hexaferrite.
~able 2 20 Strength of Bonding of Cement Stone to Rock in Tension, g/cm Mix ccanposi- Basalt Quartz listvenite ChaLk sandstone tion, per cent bycontact time, min- contact time, mm. contact time, min.
weight --Check Mix A - 50 3.18 6. 5 14.319.0 3.18 6.7 15.4 22.2 3.21 6.9 14.5 24.1 C - 49. 95 A - 49.95 H - 0.1 1.98 6.315.440.9 2.4 6.517.546.0 2.8 7.5 22.1 56.3 .
: - : ~
: .. . . .
- ~ . . ~ ' :
. ~ ' - , , :
.. . -, ~3Z7~3~
Because of a high activity~of the packing mix according to the invention and due t~ t~e probIems inYolved in its storage during geQlogical parties, some sili~ca gel, in the form of both powder and pellets or as a mi~ture of these~ is added to the mix.
Investigations of the variation of properties of the pack-ing mix containing: cement, 49.g5 per cent by weight; alabaster, 49.95 per cent by weight; and barium hexaferrite, 0.1 per cent by weight which has been stored under Arctic condition5 are given in Table 3.
Table 3 Variation of the Properties of a Packing Mix Stored under Arctic Conditions .
No. of Addition Friability Compressive stren~th in per EX 1 of silica cent of the starting value cent by 0 6 12 24 0 6 12 24 weight . mo. . mo. ~ mo. mo. mo. .
Check - good bad bad bad 100 40 -- --1 5 good good med. bad 100 100 80 30 2 10 good good good med. 100 100 100 80 3 15 good good good good 100 100 100 100 4 20 good good good good 80 80 -- --The table shows clearly that a mix with 5 per cent by weight of silica gel retains its high physico-mechanical prop-erties for up to 1 year, but these, however, substantially de-teriorate in further storage.
~!
--. ~ -.
~ ~ 3Z7~ ~
On the other hand, an addition of 20 per cent of silica gel results in a los~ of strength b~ the cemenb ~tone, so that the opti~um content o~ silica gel is to be taken equal to 15 per cent by ~eight, .
, "
. : :
~ ~ .
.
, , ~
- , .~ . :: . . . .
.: , . . - ~ .
. .
: .
cement, 49.95 per cent by weight; alabaster, 49.95 per cent by weight; and barium hexaferrite, 0.1 per cent by weight~
::
~ 35 ~ :
` i ~
i ~ ~
~31 3~Z~784 A packin~ mix containing: cement~ 49,995 per cent by weight; alabaster, 49 995 per cent by weight; and bariu~ hexa ferrite, 0.01 per cent by weight di~f~ers very little in prop erties from the check sample, whereas a packing mix having the 5 following composition: cement, 48. 5 per cent by weight; ala-baster, 48.5 per cent by weight; and barium hexaferrite, 3.0 per cent by weight features a substantially longer setting time and lower strength.
10 Therefore, further tests concerned the packing mix having the best physicochemical properties, or the mix containing:
cement, 49.95 per cent by weight; alabaster, 49.95 per cent by weight; and barium hexaferrite, 0.1 per cent by weight.
15 Results of tests for strength of bonding of cement stone to rock (in tension~ are listed in Table 2, where C - cement, A - alabaster, H - barium hexaferrite.
~able 2 20 Strength of Bonding of Cement Stone to Rock in Tension, g/cm Mix ccanposi- Basalt Quartz listvenite ChaLk sandstone tion, per cent bycontact time, min- contact time, mm. contact time, min.
weight --Check Mix A - 50 3.18 6. 5 14.319.0 3.18 6.7 15.4 22.2 3.21 6.9 14.5 24.1 C - 49. 95 A - 49.95 H - 0.1 1.98 6.315.440.9 2.4 6.517.546.0 2.8 7.5 22.1 56.3 .
: - : ~
: .. . . .
- ~ . . ~ ' :
. ~ ' - , , :
.. . -, ~3Z7~3~
Because of a high activity~of the packing mix according to the invention and due t~ t~e probIems inYolved in its storage during geQlogical parties, some sili~ca gel, in the form of both powder and pellets or as a mi~ture of these~ is added to the mix.
Investigations of the variation of properties of the pack-ing mix containing: cement, 49.g5 per cent by weight; alabaster, 49.95 per cent by weight; and barium hexaferrite, 0.1 per cent by weight which has been stored under Arctic condition5 are given in Table 3.
Table 3 Variation of the Properties of a Packing Mix Stored under Arctic Conditions .
No. of Addition Friability Compressive stren~th in per EX 1 of silica cent of the starting value cent by 0 6 12 24 0 6 12 24 weight . mo. . mo. ~ mo. mo. mo. .
Check - good bad bad bad 100 40 -- --1 5 good good med. bad 100 100 80 30 2 10 good good good med. 100 100 100 80 3 15 good good good good 100 100 100 100 4 20 good good good good 80 80 -- --The table shows clearly that a mix with 5 per cent by weight of silica gel retains its high physico-mechanical prop-erties for up to 1 year, but these, however, substantially de-teriorate in further storage.
~!
--. ~ -.
~ ~ 3Z7~ ~
On the other hand, an addition of 20 per cent of silica gel results in a los~ of strength b~ the cemenb ~tone, so that the opti~um content o~ silica gel is to be taken equal to 15 per cent by ~eight, .
, "
. : :
~ ~ .
.
, , ~
- , .~ . :: . . . .
.: , . . - ~ .
. .
: .
Claims (7)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A rapid-setting dry packing mix for eliminating bore hole troubles prepared on the basis of a powder gypsum-cement binder comprising: from 40 to 50% by weight of powder cement; from 50 to 60% by weight of powder binder selected from the group consisting of gypsum and alabaster; and from 0.01 to 3.0% by weight of powder barium hexaferrite having a particle size commensurate with the particles of the binder.
2. The mix of claim 1, including from 5 to 15%
by weight of silica gel.
by weight of silica gel.
3. A method for obtaining a rapid-setting dry packing mix prepared on the basis of a powder gypsum-cement binder, the mix comprising: from 40 to 50% by weight of powder cement; from 50 to 60% by weight of powder binder selected from the group consisting of gypsum and alabaster; and from 0.01 to 3.0% by weight of powder barium hexaferrite having a particle size commensurate with the particles of the binder, the method comprising the steps of mixing magnetized pellets containing barium hexaferrite with said powder cement and said powder binder and subjecting the resulting mixture to an alternating electro-magnetic field whereby the magnetized pellets move in a chaotic manner to stir the mixture and whereby barium hexaferrite is added to the rapid-setting dry packing mix by abrasion of the magnetized pellets.
4. The method of claim 3, wherein the rapid-setting dry packing mix further comprises from 5 to 15% by weight of silica gel.
5. The method of claim 3, wherein the magnetized pellets are composed entirely of barium hexaferrite.
6. The method of claim 3, wherein the magnetized pellets comprise barium hexaferrite and at least one inert additive.
7. The method of claims 5 or 6, wherein at least a portion of the magnetized pellets have a greater abradability than the remaining portion.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU782631355A SU866129A1 (en) | 1978-07-06 | 1978-07-06 | Method of preparing plugging composition |
| SU2631355 | 1978-07-06 | ||
| SU782631356A SU874979A1 (en) | 1978-07-12 | 1978-07-12 | Cementing composition |
| SU2631356 | 1978-07-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1132784A true CA1132784A (en) | 1982-10-05 |
Family
ID=26665676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA331,076A Expired CA1132784A (en) | 1978-07-06 | 1979-07-04 | Rapid-setting dry packing mix for eliminating bore hole troubles and method of manufacture thereof |
Country Status (5)
| Country | Link |
|---|---|
| CA (1) | CA1132784A (en) |
| DE (1) | DE2927420C2 (en) |
| FI (1) | FI66422C (en) |
| FR (1) | FR2434129A1 (en) |
| GB (1) | GB2027421B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016202618A1 (en) | 2016-02-19 | 2017-08-24 | Wacker Chemie Ag | Stabilizers for improving the storage stability of building material dry formulations containing polymer powders |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4691774A (en) * | 1985-11-15 | 1987-09-08 | Dowell Schlumberger Incorporated | Novel ferrofluids for use in cementing wells |
| GB2227263A (en) * | 1988-10-03 | 1990-07-25 | Fosroc International Ltd | Placement of grout in a void |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE7514726L (en) * | 1974-12-30 | 1976-07-31 | Kalininsky Kom Str Materialov | PROCEDURE FOR THE PREPARATION OF A MIXTURE, INTENDED IN THE FRONT ROOM AS A STARTING MATERIAL FOR THE MANUFACTURE OF BUILDING MATERIALS AND BUILDING ELEMENTS |
-
1979
- 1979-07-04 CA CA331,076A patent/CA1132784A/en not_active Expired
- 1979-07-04 FI FI792114A patent/FI66422C/en not_active IP Right Cessation
- 1979-07-06 DE DE19792927420 patent/DE2927420C2/en not_active Expired
- 1979-07-06 GB GB7923591A patent/GB2027421B/en not_active Expired
- 1979-07-06 FR FR7917663A patent/FR2434129A1/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016202618A1 (en) | 2016-02-19 | 2017-08-24 | Wacker Chemie Ag | Stabilizers for improving the storage stability of building material dry formulations containing polymer powders |
| WO2017140781A1 (en) | 2016-02-19 | 2017-08-24 | Wacker Chemie Ag | Stabilizers for improving the storage stability of building material dry formulations containing polymer powder |
Also Published As
| Publication number | Publication date |
|---|---|
| FI792114A (en) | 1980-01-07 |
| FR2434129B1 (en) | 1983-11-18 |
| FR2434129A1 (en) | 1980-03-21 |
| GB2027421A (en) | 1980-02-20 |
| FI66422C (en) | 1984-10-10 |
| DE2927420A1 (en) | 1980-01-24 |
| GB2027421B (en) | 1982-09-22 |
| DE2927420C2 (en) | 1983-10-06 |
| FI66422B (en) | 1984-06-29 |
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