IP Library Granted Patent US 10,233,380
Granted Patent B1
US 10,233,380 · App. 15/700,886 · Granted Mar 19, 2019

Well treatment fluid having an acidic nanoparticle based dispersion and a polyamine

Inventors: Vikrant Wagle (Abqaiq, SA); Abdullah Al-Yami (Dhahran, SA); Zainab Alsaihati (Saihat, SA); Abdulaziz Alhelal (Alhsa Hofuf, SA)
Assignee: Saudi Arabian Oil Company
C09K8/5083C09K8/516E21B21/003E21B33/138C09K2208/10E21B43/20
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Quick Facts
Patent No.
US 10,233,380
App. No.
15/700,886
Granted
Mar 19, 2019
Kind
B1
Abstract

A well treatment fluid having an acidic nanosilica dispersion and a polyamine activator and methods of reducing water production using the well treatment fluid. The acidic nanosilica dispersion and the polyamine activator may form a gelled solid after interaction over a period.

Claims (13)

1. A method to reduce water production in a treatment zone in a wellbore, comprising:

introducing a treatment fluid into the wellbore such that the treatment fluid contacts the treatment zone and reduces the water production in the treatment zone, wherein the treatment fluid comprises an acidic nanosilica dispersion and a polyethylene polyamine.

2. The method of claim 1 , wherein the treatment fluid consists of the acidic nanosilica dispersion and the polyethylene polyamine.

3. The method of claim 1 , wherein the polyethylene polyamine comprises at least one of diethylenetriamine, ethylenediamine, tetraethylenepetamine (TEPA), triethylentetramine, pentaethylenehexamine (PEHA), and hexaethyleneheptamine (HEHA).

4. The method of claim 1 , wherein the polyethylene polyamine comprises an amount in the range of 0.1 percent by volume of the total volume (v/v %) to 20 v/v %.

5. The method of claim 1 , comprising maintaining the acidic nanosilica dispersion and the polyethylene polyamine in contact with the treatment zone for a period, such that the acidic nanosilica dispersion and the polyethylene polyamine form a gelled solid.

6. The method of claim 1 , wherein the period comprises a range of 0.5 hours to 24 hours.

7. The method of claim 1 , comprising mixing the acidic nanosilica dispersion and the polyethylene polyamine to form the treatment fluid at the surface before introducing the treatment fluid into the wellbore.

8. The method of claim 1 , wherein the treatment fluid comprises at least one of calcium carbonate particles, fibers, mica, and graphite.

9. The method of claim 8 , wherein the fibers comprise at least one of polyester fibers, polypropylene fibers, starch fibers, polyketone fibers, ceramic fibers, glass fibers or nylon fibers.

10. The method of claim 1 , wherein the acidic nanosilica dispersion is stabilized by a cationic polymer.

11. The method of claim 1 , wherein the acidic nanosilica dispersion is stabilized by a carboxylic acid.

12. The method of claim 1 , wherein the acidic nanosilica dispersion is stabilized by acetic acid.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 28, 2017
From: WAGLE, VIKRANT; AL-YAMI, ABDULLAH; ALSAIHATI, ZAINAB; ALHELAL, ABDULAZIZ
To: SAUDI ARABIAN OIL COMPANY
Reel/Frame 043724/0230 →