US3672173A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Forming self-supporting barriers in mine passages and the like
Assignee: Halliburton Co
•
Filing: 1969-05-13
•
Granted: 1972-06-27
•
Expires: 1989-05-13
Abstract
Abstract The present invention relates to methods and apparatus for remotely forming self-supporting water impermeable barriers in mine passages and the like. A fast setting cementitious composition is formed by combining an aqueous slurry of cement with an aqueous silicate solution. The cementitious composition thus formed is continuously deposited transversely on the floor and walls of a mine passage by apparatus extending into the mine passage through the mine opening, or through a bore drilled into the passage from the ground surface. The cementitious composition sets into a firm impermeable mass as it is being deposited thereby forming a firm self-supporting barrier in said passage.
Inventors
- 👤 Edwin L Paramore
- 👤 Bernard T O'loughlin
- 👤 Thomas L Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:46
CPC Classifications
E; E21; E21F; E21F15/00; C; C04; C04B; C04B18/00; C04B18/04; C04B18/06; C04B18/08; C04B28/00; C04B28/02; C04B28/04; C04B2111/00; C04B2111/00474; C04B2111/00724; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/91
Claims Analysis
Total Claims: 51
Claim 1
Independent Claim
23 words
The method of claim 1 wherein the cementitious composition comprises a mixture of an aqueous slurry of cement and an aqueous silicate solution.
Claim 2
Dependent Claim
14 words
The method of claim 2 wherein the cement is of thE Portland Cement type.
Claim 3
Dependent Claim
11 words
The method of claim 3 wherein the silicate is sodium silicate.
Claim 4
Dependent Claim
52 words
The method of claim 4 wherein the aqueous slurry of cement is comprised of Portland Cement present in an amount of from about 7 percent by weight to about 75 percent by weight and water present in an amount of from about 25 percent by weight to about 93 percent by weight.
Claim 5
Dependent Claim
53 words
The method of claim 4 wherein the aqueous silicate solution is comprised of grade 40 sodium silicate present in an amount of from about 6 percent by weight to about 100 percent by weight and water present in an amount of from about 0 percent by weight to about 94 percent by weight.
Claim 6
Dependent Claim
25 words
The method of claim 3 wherein the silicate is selected from the group consisting of sodium silicate, potassium silicate, guanidine silicate and tetramethyl ammonium silicate.
Claim 7
Dependent Claim
23 words
The method of claim 2 which is further characterized to include a cement setting time retarding agent in said aqueous slurry of cement.
Claim 8
Dependent Claim
14 words
The method of claim 8 wherein the cement is of the Portland cement type.
Claim 9
Dependent Claim
13 words
The method of claim 9 wherein the silicate is grade 40 sodium silicate.
Claim 10
Dependent Claim
15 words
The method of claim 10 wherein the cement setting time retarding agent is fly ash.
Claim 11
Dependent Claim
53 words
The method of claim 11 wherein the aqueous silicate solution is comprised of grade 40 sodium silicate present in an amount of from about 6 percent by weight to about 100 percent by weight and water present in an amount of from about 0 percent by weight to about 94 percent by weight.
Claim 12
Dependent Claim
25 words
The method of claim 9 wherein the silicate is selected from the group consisting of sodium silicate, potassium silicate, guanidine silicate and tetramethyl ammonium silicate.
Claim 13
Dependent Claim
20 words
The method of claim 8 which is further characterized to include a thixotropy inducing agent in said aqueous silicate solution.
Claim 14
Dependent Claim
14 words
The method of claim 14 wherein the cement is of the Portland cement type.
Claim 15
Dependent Claim
13 words
The method of claim 15 wherein the silicate is grade 40 sodium silicate.
Claim 16
Dependent Claim
15 words
The method of claim 16 wherein the cement setting time retarding agent is fly ash.
Claim 17
Dependent Claim
12 words
The method of claim 17 wherein the thixotropy inducing agent is bentonite.
Claim 18
Dependent Claim
25 words
The method of claim 15 wherein the silicate is selected from the group consisting of sodium silicate, potassium silicate, guanidine silicate and tetramethyl ammonium silicate.
Claim 19
Dependent Claim
25 words
The method of claim 15 wherein the silicate is selected from the group consisting of sodium silicate, potassium silicate, guanidine silicate and tetramethyl ammonium silicate.
Claim 20
Independent Claim
101 words
A method of remotely forming a self-supporting barrier in a mine passage and the like, without the use of forms, which comprises: combining a stream of an aqueous slurry of cement with a stream of an aqueous silicate solution to form a stream of cementitious composition; continuously remotely depositing said cementitious composition in a portion of said passage to form a firm impermeable barrier therein; and varying the volume ratio of said stream of aqueous slurry of cement to said stream of aqueous silicate solution while said composition is being deposited thereby varying the setting time and viscosity of said composition.
Claim 21
Dependent Claim
14 words
The method of claim 21 wherein said cement is of the Portland Cement type.
Claim 22
Dependent Claim
11 words
The method of claim 21 wherein said silicate is sodium silicate.
Claim 23
Independent Claim
130 words
A method of remotely forming a self-supporting barrier in a mine passage and the like, without the use of forms, which comprises: combining a stream comprised of an aqueous slurry of cement and a setting time retarding agent with a stream comprised of an aqueous slurry of a silicate and a thixotropic inducing agent to form a stream of cementitious composition; continuously remotely depositing said stream of cementitious composition transversely in a portion of said passage to form a firm impermeable barrier therein; and varying the volume ratio of said sTream of aqueous slurry of cement and setting time retarding agent to said stream of aqueous slurry of silicate and thixotropic inducing agent while said composition is being deposited thereby varying the setting time and thixotropic properties of said composition.
Claim 24
Dependent Claim
11 words
The method of claim 24 wherein the silicate is sodium silicate.
Claim 25
Dependent Claim
14 words
The method of claim 24 wherein the cement is of the Portland Cement type.
Claim 26
Dependent Claim
14 words
The method of claim 24 wherein the setting time retarding agent is fly ash.
Claim 27
Dependent Claim
12 words
The method of claim 24 wherein the thixotropic inducing agent is bentonite.
Claim 28
Independent Claim
66 words
A method of remotely forming a self-supporting barrier in a mine passage and the like, without the use of forms, comprising: drilling a bore from the surface of the ground into said passage; conducting a fast setting cementitious composition through said bore into said passage; and continuously depositing said cementitious composition transversely in a portion of said passage until a firm impermeable barrier is formed therein.
Claim 29
Dependent Claim
24 words
The method of claim 29 wherein said cementitious composition is comprised of a mixture of an aqueous cement slurry and an aqueous silicate solution.
Claim 30
Dependent Claim
14 words
The method of claim 30 wherein the cement is of the Portland Cement type.
Claim 31
Dependent Claim
11 words
The method of claim 31 wherein said silicate is sodium silicate.
Claim 32
Dependent Claim
52 words
The method of claim 32 wherein the aqueous slurry of cement is comprised of Portland Cement present in an amount of from about 7 percent by weight to about 75 percent by weight and water present in an amount of from about 25 percent by weight to about 93 percent by weight.
Claim 33
Dependent Claim
53 words
The method of claim 32 wherein the aqueous silicate solution is comprised of grade 40 sodium silicate present in an amount of from about 6 percent by weight to about 100 percent by weight and water present in an amount of from about 0 percent by weight to about 94 percent by weight.
Claim 34
Dependent Claim
25 words
The method of claim 31 wherein the silicate is selected from the group consisting of sodium silicate, potassium silicate, guanidine silicate and tetramethyl ammonium silicate.
Claim 35
Dependent Claim
23 words
The method of claim 30 which is further characterized to include a cement setting time retarding agent in said aqueous slurry of cement.
Claim 36
Dependent Claim
14 words
The method of claim 36 wherein the cement is of the Portland cement type.
Claim 37
Dependent Claim
13 words
The method of claim 37 wherein the silicate is grade 40 sodium silicate.
Claim 38
Dependent Claim
15 words
The method of claim 38 wherein the cement setting time retarding agent is fly ash.
Claim 39
Dependent Claim
53 words
The method of claim 39 wherein the aqueous silicate solution is comprised of grade 40 sodium silicate present in an amount of from about 6 percent by weight to about 100 percent by weight and water present in an amount of from about 0 percent by weight to about 94 percent by weight.
Claim 40
Dependent Claim
25 words
The method of claim 37 wherein the silicate is selected from the group consisting of sodium silicate, potassium silicate, guanidine silicate and tetramethyl ammonium silicate.
Claim 41
Dependent Claim
20 words
The method of claim 36 which is further characterized to include a thixotropy inducing agent in said aqueous silicate solution.
Claim 42
Dependent Claim
14 words
The method of claim 42 wherein the cement is of the Portland cement type.
Claim 43
Dependent Claim
13 words
The method of claim 43 wherein the silicate is grade 40 sodium silicate.
Claim 44
Dependent Claim
15 words
The method of claim 44 wherein the cement setting time retarding agent is fly ash.
Claim 45
Dependent Claim
12 words
The method of claim 45 wherein the thixotropy inducing agent is bentonite.
Claim 46
Independent Claim
112 words
The method of remotely forming a self-supporting barrier in a mine passage and the like, without the use of forms, which comprises the step of: remotely depositing a fast setting slurry of water, Portland cement, Grade 40 sodium silicate and fly ash, in a portion of said passage until a firm, self-supporting impermeable structure is formed therein, said cement being present in a concentration of from about 7 percent to about 55 percent by weight, said asH being present in a concentration of from about 10 percent to about 65 percent by weight and the water being present in a concentration of from about 25 percent to about 45 percent by weight.
Claim 47
Dependent Claim
24 words
The method of claim 47 further characterized by the addition of bentonite to said silicate solution, whereby thixotropic properties are induced in said slurry.
Claim 48
Dependent Claim
59 words
The method of claim 48 wherein said sodium silicate is present in a concentration of from about 12 to about 70 percent by weight, the bentonite is present in a concentration of from about 1 to about 10 percent by weight and the water is present in a concentration of from about 25 to about 80 percent by weight.
Claim 49
Independent Claim
131 words
The method for remotely forming a self-supporting barrier in a mine passage and the like, without the use of forms, comprising the steps of: drilling a hole from the surface of the ground into said passage; conducting a fast setting slurry comprising Portland cement, Grade 40 sodium silicate and fly ash, and water through said hole into said passage, said cement being present in a concentration of from about 7 to about 55 percent by weight, said ash being present in a concentration of from about 10 to about 65 percent by weight and the water being present in a concentration of from about 25 to about 45 percent by weight; continuously depositing said cementitious composition transversely in a portion of said passage until a firm, impermeable barrier is formed therein.
Claim 50
Dependent Claim
24 words
The method of claim 50 further characterized by the addition of bentonite to said silicate solution, whereby thixotropic properties are induced into said slurry.
Claim 51
Dependent Claim
59 words
The method of claim 51 wherein said sodium silicate is present in a concentration of from about 12 to about 70 percent by weight, the bentonite is present in a concentration of from about 1 to about 10 percent by weight and the water is present in a concentration of from about 25 to about 80 percent by weight.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-27 | 1975-12-27 | 1976-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-27 | 1979-12-27 | 1980-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-27 | 1983-12-27 | 1984-06-27 | $7700.00 | Window Closed / Lapsed |