Lost circulation material (LCM) pill for total loss control

Patent metadata

Field	Value
Publication number	US-10927282-B2
Application number	US-201916375184-A
Country	US
Kind code	B2
Filing date	Apr 4, 2019
Priority date	Apr 4, 2019
Publication date	Feb 23, 2021
Grant date	Feb 23, 2021

Abstract

A date tree product lost circulation material (LCM) is provided. The date tree product LCM includes date tree seed particles, a first group of date tree waste fibers, a second group of date tree waste fibers, scrap tire particles, an acid-soluble particulate material, marble particles, flaked calcium carbonate, and polymer fibers. The LCM may be mixed with a carrier fluid, such as a drilling mud, to form a fluid pill. Methods of lost circulation control using the date tree product LCM and manufacture of the date tree product LCM are also provided.

First claim

What is claimed is:

1. A method to control lost circulation in a lost circulation zone in a wellbore, comprising:
introducing a fluid pill into the wellbore such that the fluid pill contacts the lost circulation zone and reduces a rate of lost circulation into the lost circulation zone, wherein fluid pill comprises a carrier fluid and a lost circulation material (LCM), wherein the LCM consists of:
a first plurality of fibers formed from date tree trunks, the first plurality of fibers having a D50 particle size distribution in the range of 800 microns to 1000 microns;
a second plurality of fibers formed from date tree trunks, the second plurality of fibers having a D50 particle size distribution in the range of 10 microns to 600 microns;
a plurality of particles formed from date tree seeds;
an acid-soluble particulate material;
a plurality of marble particles;
a plurality of particles formed from scrap tires;
a plurality of calcium carbonate flakes; and
a plurality of synthetic polymer fibers.

2. The method of claim 1 , wherein the carrier fluid comprises a drilling fluid.

3. The method of claim 2 , wherein the drilling fluid comprises a bentonite mud.

4. The method of claim 1 , wherein:
the plurality of marble particles comprises:
a first group of marble particles in an amount in the range of 15 ppb to 25 ppb;
a second group of marble particles in an amount in the range of 15 ppb to 25 ppb;
a third group of marble particles in an amount in the range of 5 ppb to 15 ppb;

the plurality of particles formed from scrap tires comprises an amount in the range of 9.5 ppb to 10.5 ppb;
the plurality of calcium carbonate flakes comprises an amount in the range of 10 ppb to 20 ppb; and
the plurality of synthetic polymer fibers comprises an amount in the range of 0.1 ppb to 0.3 ppb.

5. The method of claim 1 , wherein the plurality of particles formed from date tree seeds has a D50 particle size distribution in the range of 1000 microns to 2000 microns.

6. The method of claim 1 , wherein the plurality of marble particles comprise:
a first group of marble particles having a D50 particle size distribution of 600 microns; and
a second group of marble particles having a D50 particle size distribution of 150 microns.

7. The method of claim 6 , wherein the plurality of marble particles comprises a third group of marble particles having a D50 particle size of 50 microns.

8. The method of claim 1 , wherein the plurality of calcium carbonate flakes has a D50 particle size distribution of 850 microns.

9. A method to control lost circulation in a lost circulation zone in a wellbore, comprising:
introducing a fluid pill into the wellbore such that the fluid pill contacts the lost circulation zone and reduces a rate of lost circulation into the lost circulation zone, wherein fluid pill comprises a carrier fluid and a lost circulation material (LCM), wherein the LCM comprises:
a first plurality of fibers formed from date tree trunks, the first plurality of fibers having a D50 particle size distribution in the range of 800 microns to 1000 microns;
a second plurality of fibers formed from date tree trunks, the second plurality of fibers having a D50 particle size distribution in the range of 10 microns to 600 microns;
a plurality of particles formed from date tree seeds;
an acid-soluble particulate material;
a plurality of marble particles;
a plurality of particles formed from scrap tires;
a plurality of calcium carbonate flakes; and
a plurality of synthetic polymer fibers, wherein:

the first plurality of fibers formed from date tree trunks comprises an amount in the range of 9.5 pounds-per-barrel (ppb) to 10.5 ppb;
the second plurality of fibers formed from date tree trunks comprises an amount in the range of 9.5 ppb to 10.5 ppb; and
the plurality of particles formed from date tree seeds comprises an amount in the range of 14.25 ppb to 15.75 ppb.

10. The method of claim 9 , wherein the carrier fluid comprises a drilling fluid.

11. The method of claim 10 , wherein the drilling fluid comprises a bentonite mud.

12. The method of claim 9 , wherein:
the plurality of marble particles comprises:
a first group of marble particles in an amount in the range of 15 ppb to 25 ppb;
a second group of marble particles in an amount in the range of 15 ppb to 25 ppb;
a third group of marble particles in an amount in the range of 5 ppb to 15 ppb;

the plurality of particles formed from scrap tires comprises an amount in the range of 9.5 ppb to 10.5 ppb;
the plurality of calcium carbonate flakes comprises an amount in the range of 10 ppb to 20 ppb; and
the plurality of synthetic polymer fibers comprises an amount in the range of 0.1 ppb to 0.3 ppb.

13. The method of claim 9 , wherein the plurality of particles formed from date tree seeds has a D50 particle size distribution in the range of 1000 microns to 2000 microns.

14. The method of claim 9 , wherein the plurality of marble particles comprise:
a first group of marble particles having a D50 particle size distribution of 600 microns; and
a second group of marble particles having a D50 particle size distribution of 150 microns.

15. The method of claim 14 , wherein the plurality of marble particles comprises a third group of marble particles having a D50 particle size of 50 microns.

16. The method of claim 9 , wherein the plurality of calcium carbonate flakes has a D50 particle size distribution of 850 microns.

Assignees

• Saudi Arabian Oil Co

Inventors

• Amanullah Md
• Al-Subaie Turki

Classifications

• C09K2208/08

  Fiber-containing well treatment fluids · CPC title

• C09K8/035 Primary

  Organic additives · CPC title

• C09K8/508

  macromolecular compounds {(C09K8/512 takes precedence)} · CPC title

• C09K8/24 Primary

  Polymers · CPC title

• C09K8/516

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