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US 12,655,339 B2Granted
Packer fluids including ethylene glycol
AssigneeSaudi Arabian Oil Company
InventorsAbdulwahab S. Aljohar, Ali AlSafran, Vikrant Wagle, Abdulaziz Alhelal, Hamzah Nader Abushullaih, Abdullah Saleh Hussain Al-Yami
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Abstract
The present disclosure relates to packer fluids including a hydrocarbon and ethylene glycol, to methods for treating a wellbore with such packer fluids, and to wellbores including such packer fluids disposed in an annulus thereof.
Claims20
A method of treating a wellbore, comprising:
- providing a packer fluid comprising:
- about 20 wt % to about 55 wt % of a hydrocarbon;
- about 3 wt % to about 15% of ethylene glycol;
- and
- about 7 wt % to about 25 wt % of water;
- wherein the hydrocarbon and the ethylene glycol are present in the packer fluid in a weight ratio of about 100:1 to 1:1;
- and
- injecting the packer fluid into an annulus of the wellbore,
- wherein the wellbore contains packer rubber, and wherein the packer rubber, when exposed to the packer fluid, expands by less than 9%.
6 more elements
A method of preventing corrosion in a wellbore, comprising:
- providing a packer fluid comprising:
- about 20 wt % to about 55 wt % of a hydrocarbon;
- about 3 wt % to about 15% of ethylene glycol;
- and
- about 7 wt % to about 25 wt % of water;
- and
- wherein the hydrocarbon and the ethylene glycol are present in the packer fluid in a weight ratio of about 100:1 to 1:1;
- and
- contacting a metal surface of the wellbore with the packer fluid,
- wherein the wellbore contains packer rubber, and wherein the packer rubber, when exposed to the packer fluid, expands by less than 9%.
7 more elements
A wellbore comprising:
- an annulus;
- a packer disposed within the annulus;
- and
- a packer fluid disposed within the annulus and adjacent the packer;
- wherein the packer fluid comprises:
- about 20 wt % to about 55 wt % of a hydrocarbon;
- about 3 wt % to about 15% of ethylene glycol;
- and
- about 7 wt % to about 25 wt % of water,
- wherein the hydrocarbon and the ethylene glycol are present in the packer fluid in a weight ratio of about 100:1 to 1:1,
- wherein the wellbore contains packer rubber, and wherein the packer rubber, when exposed to the packer fluid, expands by less than 9%.
8 more elements
Dependencies are inferred from the claim text.