Trimodal hybrid loss prevention material (LPM) for preventative and curative loss control

Patent metadata

Field	Value
Publication number	US-10240411-B1
Application number	US-201815928979-A
Country	US
Kind code	B1
Filing date	Mar 22, 2018
Priority date	Mar 22, 2018
Publication date	Mar 26, 2019
Grant date	Mar 26, 2019

Abstract

A trimodal hybrid particle mix loss prevention material (LPM) is provided. The trimodal hybrid particle mix LPM includes date palm seed particles produced from date palm seeds, scrap tire particles produced from scrap tires, and date tree pruning waste particles produced from date tree pruning waste. The LCM may include date palm seed particles in the range of about 40 wt % to about 50%, scrap tire particles in the range of about 30 wt % to about 40 wt %, and date tree pruning waste particles in the range of about 15 wt % to about 25 wt %. Methods of loss prevention and manufacture of a trimodal hybrid particle mix LPM are also provided.

First claim

What is claimed is:

1. A method to prevent lost circulation of a drilling fluid in a wellbore, comprising:
introducing an altered drilling fluid into the wellbore while drilling such that a loss prevention material (LPM) contacts a loss zone, wherein the altered drilling fluid comprises the drilling fluid and the LPM, wherein the LPM consists of:
a first plurality of particles produced from date tree seeds;
a second plurality of particles produced from date tree rachis, date tree leaves, or a combination thereof, and
a third plurality of particles produced from scrap tires;
blocking the loss zone with the LPM and thereby preventing lost circulation of the drilling fluid in the wellbore.

2. The method of claim 1 , wherein the altered drilling fluid consists of the drilling fluid and the LPM.

3. The method of claim 1 , wherein the drilling fluid comprises a water-based drilling mud or an oil-based drilling mud.

4. The method of claim 1 , wherein the LPM consists of the first plurality of particles in an amount in the range of 40% by weight to 50% by weight, the second plurality of particles in an amount in the range of 30% by weight to 40% by weight, and the third plurality of particles in an amount in the range of 15% by weight to 25% by weight.

5. The method of claim 1 , wherein the LPM comprises a concentration of at least 15 pounds-per-barrel (ppb) in the altered drilling fluid.

6. The method of claim 1 , wherein each of the first plurality of particles produced from date tree seeds has a diameter in the range of 595 microns to 4000 microns.

7. The method of claim 1 , wherein each of the second plurality of particles produced from date tree rachis, date tree leaves, or a combination thereof, has a diameter in the range of 32 microns to 250 microns.

8. The method of claim 1 , wherein each of the third plurality of particles produced from scrap tires has a diameter in the range of 2380 microns to 8000 microns.

9. The method of claim 1 , wherein the first plurality of particles comprise a plurality of untreated particles produced from untreated date tree seeds.

10. The method of claim 1 , wherein the second plurality of particles comprise a plurality of untreated particles produced from date tree rachis, date tree leaves, or a combination thereof.

Assignees

• Saudi Arabian Oil Co

Inventors

• Amanullah Md

Classifications

• C09K2208/04

  Hulls, shells or bark containing well drilling or treatment fluids · CPC title

• E21B21/003 Primary

  Means for stopping loss of drilling fluid (plastering the borehole wall E21B33/138) · CPC title

• C09K8/516

  characterised by their form or by the form of their components, e.g. encapsulated material · CPC title

• C09K8/206

  Derivatives of other natural products, e.g. cellulose, starch, sugars · CPC title

• C09K8/24

  Polymers · CPC title