Core holding system

Patent metadata

Field	Value
Publication number	US-10107056-B2
Application number	US-201715486936-A
Country	US
Kind code	B2
Filing date	Apr 13, 2017
Priority date	Sep 29, 2016
Publication date	Oct 23, 2018
Grant date	Oct 23, 2018

Abstract

The present disclosure discloses a core holding system, comprising: a sleeve in which a cavity capable of accommodating a core is formed; an adjustment plug set comprising a plurality of adjustment plugs having grooves of different diameters, wherein any one of the adjustment plugs is dismountably connectable to the sleeve, and when the adjustment plug is mounted on the sleeve, an end of the adjustment plug having the groove is insertable into the sleeve while abutting against the core; a heating module provided to sheathe the sleeve; and a thermal insulation module provided to sheathe the heating module. Before the core is held, the operator may select a matched adjustment plug from the adjustment plug set according to a diameter of a core to be held, so that a diameter of the groove of the adjustment plug is matched with a diameter of an end of the core, thereby ensuring that the end of the core can be engaged in the groove, thus ensuring that the core holding system can stably and tightly engage the core, and preventing the held core from being shifted or loosened.

First claim

What is claimed is:

1. A core holding system, comprising:
a sleeve in which a cavity capable of accommodating a core is formed;

an adjustment plug set comprising a plurality of adjustment plugs having grooves of different diameters, wherein any one of the adjustment plugs is dismountably connectable to the sleeve, and when the adjustment plug is connected to the sleeve, an end of the adjustment plug having the groove is insertable into the sleeve while abutting against the core;
a heating module provided to sheathe the sleeve; and
a thermal insulation module provided to sheathe the heating module.

2. The core holding system according to claim 1 , wherein the core holding system selects an adaptive adjustment plug according to a diameter of a core to be held.

3. The core holding system according to claim 1 , wherein the core holding system comprises a bracket on which the sleeve is rotatably provided around a first axis.

4. The core holding system according to claim 3 , wherein a support is transversely and rotatably provided between the sleeve and the bracket, and a length direction of the support coincides with the first axis.

5. The core holding system according to claim 4 , wherein there are two supports provided symmetrically.

6. The core holding system according to claim 3 , wherein the bracket is provided with rollers enabling the bracket to slide relative to the ground.

7. The core holding system according to claim 1 , wherein the adjustment plugs are provided at two ends of the sleeve, respectively, an end of the adjustment plug having the groove is insertable into the sleeve while abutting against the core, and the groove is tightly engageable with an end of the core.

8. The core holding system according to claim 7 , wherein an end of the sleeve is provided with a stopper capable of securely disposing the adjustment plug, one end of the adjustment plug abutting against the core, and the other end of the adjustment plug abutting against the stopper.

9. The core holding system according to claim 8 , wherein a diameter of the end of the adjustment plug abutting against the core is larger than a diameter of the other end of the adjustment plug, and the other end of the adjustment plug is capable of extending into a through hole formed in the stopper.

10. The core holding system according to claim 9 , wherein the stopper comprises a body secured to the sleeve and formed with a threaded hole matched with an inner diameter of the sleeve, and a threaded member dismountably in a threaded connection with the threaded hole, the through hole being provided in the threaded member.

11. The core holding system according to claim 1 , wherein an end of the sleeve is provided with a stopper capable of securely disposing the adjustment plug, one end of the adjustment plug abutting against the core, and the other end of the adjustment plug abutting against the stopper.

12. The core holding system according to claim 11 , wherein a diameter of the end of the adjustment plug abutting against the core is larger than a diameter of the other end of the adjustment plug, and the other end of the adjustment plug is capable of extending into a through hole formed in the stopper.

13. The core holding system according to claim 12 , wherein the stopper comprises a body secured to the sleeve and formed with a threaded hole matched with an inner diameter of the sleeve, and a threaded member dismountably in a threaded connection with the threaded hole, the through hole being provided in the threaded member.

14. The core holding system according to claim 1 , wherein the thermal insulation module comprises a thermal insulation ring that sheathes the sleeve and a thermal insulation cover that covers both ends of the sleeve.

15. The core holding system according to claim 1 , wherein the adjustment plug set comprises a plurality of the adjustment plugs in which the grooves have the diameters of 100 mm, 101 mm, 103 mm, 105 mm, 107 mm, 109 mm and 110 mm, respectively.

Assignees

• Petrochina Co Ltd

Inventors

• Zhang Yapu
• Yang Zhengming
• Liu Xuewei
• Hou Haitao
• Luo Yutian
• Xiong Shengchun
• He Ying

Classifications

• G01N1/04 Primary

  in the solid state, e.g. by cutting · CPC title

• E21B49/02

  by mechanically taking samples of the soil · CPC title

• G01N33/24

  Earth materials (G01N33/42 takes precedence) · CPC title

• E21B25/14

  mounted on pivot transverse to core axis · CPC title

• E21B25/10 Primary

  Formed core retaining or severing means (E21B25/06, E21B25/08 take precedence) · CPC title