Apparatus and method for observing performance of a treatment fluid in a core sample

1. A testing apparatus, comprising:

a top housing coupled to a front side of a base housing configured for a surface-surface contact between the top housing and the base housing,

a light connector comprising a light source configured to couple to a back side of the base housing and configured for a surface-surface contact between the base housing and the light connector,

where the testing apparatus is configured with a sample viewing window that is paneless, a sample recess defined by the base housing on the front side,

a core sample assembly comprising a core sample positioned within the sample recess observable though the sample viewing window, and

a primary fluid distribution hole defined by the base housing,

wherein the core sample positioned in the sample recess is fluidly accessible through the primary fluid distribution hole, and

wherein the core sample assembly positioned in the sample recess while the top housing is coupled to the base housing is secured and immobile, and is configured for a surface-surface contact between a lower surface of the core sample assembly and the front side of the base housing.

2. The testing apparatus of claim 1 where the light connector further comprises light emitting diodes (LEDs).

3. The testing apparatus of claim 1 , wherein:

the base housing defines a light distribution hole, and

the core sample positioned in the sample recess is illuminated by light transmitted from the light connector through the light distribution hole.

4. The testing apparatus of claim 1 , wherein:

the base housing defines a secondary fluid distribution hole, and

the core sample positioned in the sample recess is fluidly accessible through the secondary fluid distribution hole.

5. The testing apparatus of claim 1 where the top housing defines the sample viewing window.

6. The testing apparatus of claim 1 where the top housing further comprises external threads, the base housing further comprises internal threads, and the top housing and the base housing couple together through a threaded connection, the threaded connection being a surface-surface contact.

7. The testing apparatus of claim 1 where the light connector further comprises magnets, the base housing further comprises materials subject to magnetism, and the light connector and the base housing couple together through a magnetically induced connection.

8. The testing apparatus of claim 7 where a configuration of the magnets in the light connector and a configuration of materials subject to magnetism are asymmetrically coordinated.

9. The testing apparatus of claim 1 further comprising a yoke, where the yoke is configured to couple to the top housing and configured for a surface-surface contact between the top housing and the yoke, and where the yoke is configured to couple to the base housing and configured for a surface-surface contact between the top housing and the yoke.

10. The testing apparatus of claim 9 where the yoke defines the sample viewing window.

11. The testing apparatus of claim 9 where the yoke forms a surface-surface contact with an upper surface of the core sample assembly.

12. The testing apparatus of claim 9 where the yoke defines a stop gap and the base housing defines a coordinated stop.

13. A method of testing a core sample using a testing apparatus, comprising:

providing a testing apparatus with a core sample assembly including the core sample, where the testing apparatus has a top housing coupled to a front side of a base housing, where a light connector comprising a light source is coupled to a back side of the base housing, where the testing apparatus is configured with a sample viewing window that is paneless, with a sample recess defined by the base housing on the front side and the core sample assembly comprising a core sample positioned within the sample recess is observable though the sample viewing window, with a primary fluid distribution hole defined by the base housing wherein the core sample is fluidly accessible through the primary fluid distribution hole, and the core sample assembly positioned in the sample recess is secured and immobile, forming a surface-surface contact between a lower surface of the core sample assembly and the front side of the base housing;

introducing a treatment fluid into the testing apparatus;

passing the treatment fluid through the primary fluid distribution hole whereby the treatment fluid interacts with the core sample; and

detecting an interaction within the testing apparatus between the treatment fluid and the core sample.

14. The method of claim 13 where the testing apparatus further comprises a secondary fluid distribution hole.

15. The method of claim 13 where the treatment fluid is a reactive fluid.

16. The method of claim 13 where the treatment fluid is an acidic fluid.

17. The method of claim 13 further comprising memorializing the interaction between the treatment fluid and the core sample.

18. The method of claim 13 further comprising: maintaining the core sample at a high-pressure/high-temperature (HPHT) condition during introduction of the treatment fluid.

19. The method of claim 13 further comprising:

transmitting light from the light connector through a light distribution hole in the base housing, and

illuminating the core sample.

20. The method of claim 19 where the illuminated core sample is semi-translucent.