HYDRO-FRACKING METHOD USING AN ALOE VERA FRACTURING FLUID

• US 20180155600A1
• Filed: 01/29/2018
• Published: 06/07/2018
• Est. Priority Date: 02/11/2016
• Status: Active Grant

• Current Assignee: King Fahd University of Petroleum & Minerals (Government of Saudi Arabia)
• Original Assignee: King Fahd University of Petroleum & Minerals (Government of Saudi Arabia)
• Inventors: Hossain, Mohammed Enamul
• Granted Patent: US 10,442,971 B2
• Time in Patent Office: Days
• CPC Class Codes: C09K 2208/34 Lubricant additives
• CPC Class Codes: C09K 8/04 Aqueous well-drilling compositions
• CPC Class Codes: C09K 8/05 containing inorganic compounds only, e.g. mixtures of clay and salt
• CPC Class Codes: C09K 8/20 Natural organic compounds or derivatives thereof, e.g. polysaccharides or lignin derivatives
• CPC Class Codes: C09K 8/665 containing inorganic compounds proppants C09K8/80
• CPC Class Codes: C09K 8/68 containing organic compounds
• CPC Class Codes: C09K 8/70 characterised by their form or by the form of their components, e.g. foams
• CPC Class Codes: C09K 8/845 containing inorganic compounds
• CPC Class Codes: C09K 8/86 containing organic compounds
• CPC Class Codes: C09K 8/92 characterised by their form or by the form of their components, e.g. encapsulated material C09K8/70 takes precedence
• CPC Class Codes: E21B 21/003 Means for stopping loss of drilling fluid plastering the borehole wall E21B33/138
• CPC Class Codes: E21B 43/26 by forming crevices or fractures

Abstract

A drilling mud composition including Aloe vera particles with a largest dimension of 75-600 μm, an aqueous base fluid, and a viscosifier, where the Aloe vera particles are present in the drilling mud composition at a concentration of less than 150 ppm, relative to the total weight of the drilling mud composition. A process for fracking a geological formation, whereby the drilling mud composition is injected into the geological formation through a well bore at a pressure of at least 5,000 psi to fracture the geological formation.

Claims

1-2. -2. (canceled)

8-12. -12. (canceled)

13. :

A process for fracturing an underground geological formation, comprising;

mixing water, Aloe vera powder having a largest dimension of 75-600 μ

m, and bentonite to form a drilling mud composition,

wherein the Aloe vera particles are present in the drilling mud composition at a concentration of less than 150 ppm, relative to the total weight of the drilling mud composition; and

wherein the Aloe vera particles comprise 20-60 wt % carbon, 30-36 wt % oxygen, 2-14 wt % calcium, 1-9 wt % potassium, 1-8 wt % chlorine, 1-5 wt % aluminum, and 1-4 wt % phosphorous, relative to the total weight of the Aloe vera particles;

injecting the drilling mud composition into the underground geological formation through a well bore at a pressure of at least 5,000 psi to fracture the underground geological formation and form fissures in the underground geological formation, then

injecting a suspension of sand or quartz into the underground geological formation through the well bore to deposit the sand or the quartz in the fissures.

3. :

The process of claim 13, wherein the bentonite is present in an amount of 0.1-30 wt % relative to the total weight of the drilling mud composition.

4. :

The process of claim 13, wherein the drilling mud composition has an apparent viscosity of 11-15 cP.

5. :

The process of claim 13, wherein the drilling mud composition has a plastic viscosity of 7.5-10.5 cP.

6. :

The process of claim 13, wherein the drilling mud composition has a yield point of 5-12 lb/100 ft².

7. :

The process of claim 13, wherein the drilling mud composition has a gel strength of 3-15 lb/100 ft² after 10 seconds.

14. :

The process of claim 13, wherein the drilling mud composition reduces a % loss of the aqueous base fluid in the underground geological formation during the injecting compared to a drilling mud composition that is substantially the same without the Aloe vera particles.

15. :

The process of claim 13, further comprising circulating the drilling mud composition within the well bore after the injecting.

16. :

The process of claim 15, wherein the drilling mud composition is circulated for at least 30 minutes.

17. :

The process of claim 13, wherein the drilling mud composition further comprises at least one additive selected from the group consisting of an antiscalant, a thickener, a deflocculant, an anionic polyelectrolyte, a lubricant, a fluid loss additive, and a weighting agent.