Simulating downhole flow through a perforation
US-9279904-B2 · Mar 8, 2016 · US
Method for determining weight concentration of clay in a sample of a porous medium
US9399911B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9399911-B2 |
| Application number | US-201314015930-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 30, 2013 |
| Priority date | Sep 3, 2012 |
| Publication date | Jul 26, 2016 |
| Grant date | Jul 26, 2016 |
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Abstract
Official abstract text for this publication.
For the purpose of determining a weight concentration of a clay material in a porous medium sample, a specific active surface area of the clay material and an initial specific active surface area of the porous sample are measured. A water solution of the clay material is pumped through the sample and a specific active surface area of the sample of the porous medium is measured after the pumping. Then, the weight concentration of the clay material is calculated.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for determining a weight concentration of a clay material in a sample of a porous medium, the method comprising: measuring a specific active surface area of the clay material and an initial specific active surface area of the sample of the porous medium, pumping a water solution of the clay material through the sample of the porous medium, measuring the specific active surface area of the sample of the porous medium after the pumping, and calculating the weight concentration n clay of the clay material in the sample of the porous medium as = - - where S Σ s the specific active surface area of the sample of the porous medium after the pumping of the water solution of the clay material, S 0 s is the initial specific active surface area of the sample of the porous medium, and S clay s is the specific active surface area of the clay material. 2. The method of claim 1 , wherein the sample of the porous medium is dried before measuring specific active surface area of the sample after pumping the water solution of the clay material through the sample.
Assignees
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Classifications
- E21B49/02Primary
by mechanically taking samples of the soil · CPC title
Investigating permeability by forcing a fluid through a sample · CPC title
- G01N33/2823Primary
Raw oil, drilling fluid or polyphasic mixtures · CPC title
Pore surface area · CPC title
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- What does patent US9399911B2 cover?
- For the purpose of determining a weight concentration of a clay material in a porous medium sample, a specific active surface area of the clay material and an initial specific active surface area of the porous sample are measured. A water solution of the clay material is pumped through the sample and a specific active surface area of the sample of the porous medium is measured after the pumping…
- Who is the assignee on this patent?
- Schlumberger Technology Corp
- What technology area does this patent fall under?
- Primary CPC classification E21B49/02. Mapped technology areas include Fixed Constructions.
- When was this patent published?
- Publication date Tue Jul 26 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).