1. A system for simulating drilling in an underground formation, comprising:
a rock sample disposed in a jacket, the rock sample having a closed groove therein;
a sealing collar affixed in the closed groove and extending from the rock sample; and
an end cap secured to the jacket, the end cap having an opening extending therethrough, the opening being positioned to receive the sealing collar, the sealing collar being sealed with respect to the end cap.
2. The system as recited in claim 1, wherein the closed groove is an annular groove.
3. The system as recited in claim 2, wherein the sealing collar is circular in cross-section.
4. The system as recited in claim 1, further comprising a corresponding end cap secured to the jacket on an opposite end of the rock sample from the end cap.
5. The system as recited in claim 4, wherein the corresponding end cap comprises a pressure port.
6. The system as recited in claim 1, further comprising a layer of porous media disposed between the rock sample and the jacket.
7. The system as recited in claim 1, wherein the end cap is threadably engaged with the jacket.
8. The system as recited in claim 7, further comprising a corresponding end cap threadably engaged with the jacket on an opposite end of the rock sample from the end cap.
9. The system as recited in claim 1, wherein the end cap is clamped to the jacket.
10. The system as recited in claim 9, further comprising a corresponding end cap clamped to the jacket on an opposite end of the rock sample from the end cap.
11. The system as recited in claim 1, wherein the sealing collar is sealed with respect to the end cap by an O-ring seal.
12. The system as recited in claim 1, wherein the sealing collar is affixed in the groove via an adhesive.
13. A method for simulating drilling in an underground formation using a rock sample, comprising:
inserting a sealing collar into the rock sample;
placing a jacket around the rock sample;
positioning an end cap between the sealing collar and the jacket; and
sealing the end cap between the sealing collar and the jacket.
14. The method as recited in claim 13, further comprising moving a drill bit through an interior of the sealing collar and drilling into the rock sample.
15. The method as recited in claim 14, further comprising subjecting the rock sample to lateral confining pressure and overburden stress during drilling into the rock sample.
16. The method as recited in claim 13, wherein inserting the sealing collar into the rock sample comprises inserting the sealing collar into an annular groove formed in the rock sample.
17. The method as recited in claim 16, further comprising sealing and affixing the sealing collar in the annular groove with an adhesive.
18. The method as recited in claim 13, wherein placing the jacket around the rock sample comprises placing a tubular jacket around a cylindrically shaped rock sample.
19. The method as recited in claim 13, further comprising securing a corresponding end cap to the jacket on an opposite end of the rock sample with respect to the end cap.
20. A method of performing a simulation on a rock sample, comprising:
forming a cut-out portion in the rock sample;
placing a jacket around the rock sample;
inserting a sealing collar into the cut-out portion;
capping the rock sample between the sealing collar and the jacket; and
performing the simulation on the rock sample through the sealing collar while applying pressure to the rock sample.
21. The method as recited in claim 20, wherein performing the simulation on the rock sample comprises drilling the rock sample through an interior of the sealing collar.
22. The method as recited in claim 20, wherein inserting the sealing collar into the cut-out portion comprises affixing the sealing collar in a groove forming the cut-out portion.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. An automobile slide adjuster comprising:
a lower rail adapted to be secured to a vehicle body;
an upper rail slidably mounted on the lower rail;
a seat belt;
a seat belt holding plate secured to the upper rail and having a seat belt anchor formed therewith to hold one end of the seat belt; and
a reinforcing plate mounted to the lower rail to reinforce the seat belt holding plate.
2. The automobile slide adjuster according to claim 1, further comprising an auxiliary rail joined to the seat belt holding plate and an auxiliary rail guide held by the reinforcing plate and having a guide groove defined therein, wherein a portion of the auxiliary rail is loosely inserted in the guide groove in the auxiliary rail guide.
3. The automobile slide adjuster according to claim 2, further comprising a belt mounted to the reinforcing plate and a belt guide secured to the seat belt holding plate to guide the belt.
4. The automobile slide adjuster according to claim 3, further comprising a guide support secured to the reinforcing plate to support the auxiliary rail guide and a guide support holding member secured to the seat belt holding plate to hold the guide support.
5. The automobile slide adjuster according to claim 4, wherein the guide support holding member is positioned laterally outwardly of the belt guide.