# US 12,601,238 B2 · Bulk metallic glass reinforced elastomer for downhole applications

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- Number: US 12,601,238 B2
- Document ID: US12601238B2
- Status: Granted
- Kind: B2
- Application number: 18/520,851
- Filed: 2023-11-28
- Published: 2025-05-29
- Granted: 2026-04-14
- Earliest claimed: 2023-11-28
- Assignees: Halliburton Energy Services, Inc.
- Applicants: Halliburton Energy Services, Inc.
- Inventors: Shashwat Shukla; Somen Kumar Bhudolia; Sandeep Thatathil; Arpana Singh
- Web page: https://patentgrep.com/patent/US12601238B2

## CPC

- E21B 33/1208: {characterised by the construction of the sealing or packing means (E21B33/1277 takes precedence)}
- E21B: EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS

## Abstract

In general, in one aspect, embodiments relate to an apparatus that includes a downhole tool, that includes one or more sealing elements that includes a bulk metallic glass (BMG) elastomer composite material.

## Claims

### Claim 1

An apparatus comprising:
a downhole tool, comprising:
one or more sealing elements comprising a bulk metallic glass (BMG) elastomer composite material, wherein the one or more sealing elements elongate at a temperature from about 121° C. to about 500° C.

### Claim 2 (depends on 1)

The apparatus of claim 1, wherein the BMG elastomer composite material comprises an alkaline-earth and rare-earth based BMG.

### Claim 3 (depends on 2)

The apparatus of claim 2, wherein the alkaline-earth rare-earth based BMG comprises MgCuY in an amount from about 20 wt. % to about 40 wt. %.

### Claim 4 (depends on 3)

The apparatus of claim 3, wherein thermoplastic is present in the BMG elastomer composite material in an amount from about 10 wt. % to about 20 wt. %.

### Claim 5 (depends on 1)

The apparatus of claim 1, wherein the BMG elastomer composite material comprises at least one BMG selected from the group consisting of an MG-based BMG, a Zr-based BMG, a Fe-based BMG, a Ni-based BMG, a Cu-based BMG, a Cr-based BMG, a Ti-based BMG, an Al-based BMG, and any combination thereof.

### Claim 6 (depends on 1)

The apparatus of claim 1, wherein the BMG elastomer composite material comprises at least one BMG selected from the group consisting of MgZnCa, MgCuGd, CaMgCu, MgNiMn, AuCuSi, PdCuSi, TiZrNiCu, PdCuNiP, CaMgCu, LaAlCoCuNi, FeCoCrMoCBY, PtNiCuP, and any combination thereof.

### Claim 7 (depends on 1)

The apparatus of claim 1, wherein the BMG elastomer composite material comprises at least three metals selected from the group consisting of zirconium, copper, silver, aluminum, titanium, nickel, niobium, chromium, tantalum, beryllium, magnesium, a lanthanide, palladium, calcium, platinum, gold, iron, cobalt, yttrium, hafnium, and lithium.

### Claim 8 (depends on 1)

The apparatus of claim 1, where the BMG elastomer composite material comprises nanofiller in an amount from about 1 wt. % to about 5 wt. %.

### Claim 9 (depends on 1)

The apparatus of claim 1, the BMG elastomer composite material comprises BMG having nanocrystals in an amount less than 10% by weight of BMG.

### Claim 10 (depends on 1)

The apparatus of claim 1, wherein the BMG elastomer composite material comprises at least one elastomer selected from the group consisting of a thermoset elastomer, a thermoplastic elastomer, a thermoplastic rubber, a plastomer, and any combination thereof.

### Claim 11 (depends on 1)

The apparatus of claim 1, wherein the BMG elastomer material comprises at least one elastomer selected from the group consisting of nitrile rubber, hydrogenated nitrile rubber, fluoroelastomer, propylene tetrafluoroethylene, perfluoroelastomer, polyethylene, ethylene propylene diene rubber, ethylene octane copolymer, linear low density polyethylene, ultra-low density polyethylene, a natural rubber, styrene butadiene block copolymer, polyisoprene, polybutadiene, ethylene propylene rubber, ethylene propylene diene rubber, silicone, polyurethane, and any combination thereof.

### Claim 12 (depends on 1)

The apparatus of claim 1, wherein the one or more sealing elements comprise at least one seal selected from the group consisting of an O-ring, a molded seal, a seal stack, and any combination thereof.

### Claim 13 (depends on 1)

The apparatus of claim 1, wherein the downhole tool comprises a packer, a plug, or a liner hanger.

### Claim 14 (depends on 1)

The apparatus of claim 1, wherein a temperature at which a BMG of the BMG elastomer composite material transitions to superplastic flow is within 50° C. of a molding temperature, extrusion temperature, or shaping temperature of at least one elastomer of the BMG elastomer composite material.