# US 2019/0169481 A1 · Solid/liquid high film strength fluid lubricant

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- Number: US 2019/0169481 A1
- Document ID: US20190169481A1
- Status: Published application
- Kind: A1
- Application number: 16/210,505
- Filed: 2018-12-05
- Published: 2019-06-06
- Earliest claimed: 2017-12-05
- Assignees: University of Louisiana at Lafayette
- Applicants: University of Louisiana at Lafayette
- Inventors: Asadollah Hayatdavoudi; Gordon Guillory; Peter Schexnayder
- Web page: https://patentgrep.com/patent/US20190169481A1

## CPC

- C09K 8/145: {characterised by the composition of the clay}
- C09K 8/16: characterised by the inorganic compounds other than clay
- C09K 8/24: Polymers
- C09K 2208/34: Lubricant additives
- C09K: MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE

## Abstract

GSH Dry Lubricant Additive is, chemically, magnesium aluminum silicate. It is a clay rich in titanium, magnesium, and aluminum. As an inanimate object, it does not “function” per se, but rather its properties are as such that it is highly beneficial to the drilling industry. It has a naturally high lubricity, a high stall torque, high gel strength, but a low plastic viscosity. This means that it effectively cools the bit while drilling, reduces friction in the system, supports cuttings better, but is easier to break out of a static gel strength than traditional engineered muds. Finally, as a high suspendability, low solids content material, it acts as a natural gel-state cement for unconsolidated LCM particles, effectively strengthening the wellbore.

## Claims

### Claim 1

A composition of drilling mud comprising:
a. a fluid;
b. weighting materials to obtain a density greater than the fluid; and
c. magnesium aluminum silicate clay.

### Claim 2 (depends on 1)

The composition of claim 1 wherein said alumino magnesium silicate clay comprises magnesium oxides.

### Claim 3 (depends on 1)

The composition of claim 1 wherein said alumino magnesium silicate clay comprises titanium oxides.

### Claim 4 (depends on 1)

The composition of claim 1 further comprising at least one additive chosen from the group consisting of: high melting point resins, montan wax, shellac, polyvinyl alcohol, and sapiolite.

### Claim 5 (depends on 1)

The composition of claim 1 further comprising at least one polymer.

### Claim 6 (depends on 5)

The composition of claim 5 wherein said at least one polymer comprises a polyvinyl alcohol derivative.

### Claim 7 (depends on 5)

The composition of claim 5 wherein said alumnio magnesium silicate clay is diffused into said at least one polymer.

### Claim 8 (depends on 1)

The composition of claim 1 further comprising TRAXX.

### Claim 9

A drilling mud additive comprising:
a. a determined volume of water; and
b. GSH Dry Lubricant.

### Claim 10 (depends on 9)

The additive of claim 9 further comprising barite to weight said drilling mud additive.

### Claim 11 (depends on 10)

The additive of claim 10 comprising 350 cc of said water, 22 grams of said GSH Dry Lubricant, and enough barite to weight said additive to 12 ppg.

### Claim 12 (depends on 9)

The additive of claim 9 further comprising lost circulation material chosen from the group consisting of calcite and graphite.

### Claim 13 (depends on 9)

The additive of claim 9 further comprising bentonite.

### Claim 14 (depends on 9)

The additive of claim 9 further comprising sapiolite.

### Claim 15 (depends on 9)

The additive of claim 9 wherein said GSH Dry Lubricant is diffused into a polymer.

### Claim 16 (depends on 15)

The additive of claim 15 wherein said polymer comprises a polyvinyl alcohol derivate polymer.