US 2015/0027696 A1 · METHOD OF COLLECTING SAMPLE USING MULTI-PACKER AND APPARATUS THEREOF

Abstract

Disclosed are a method of collecting samples and an apparatus thereof. The method of collecting a sample using a multi-packer includes (A) dropping a sample collecting container into a borehole to collect a sample; (B) confirming whether the dropped sample collecting container arrives at a predetermined depth; (C) allowing a first packer surrounding an outer portion of a top end of the sample collecting container and a second packer surrounding an outer portion of a bottom end of the sample collecting container to adhere closely to a wall of the borehole by expanding the first and second packers when the dropped sample collecting container arrives at the predetermined; (D) collecting the sample at an outside of a casing constituting the borehole; (E) separating the first and second packers from each other when the collecting of the sample is completed; and (F) retrieving the sample collecting container filled with the sample from the borehole.

Claims17

Dependent claims

A method of collecting a sample using a multi-packer, the method comprising:

(A) dropping a sample collecting container into a borehole to collect a sample;
(B) confirming whether the dropped sample collecting container arrives at a predetermined depth;
(C) allowing a first packer surrounding an outer portion of a top end of the sample collecting container and a second packer surrounding an outer portion of a bottom end of the sample collecting container to adhere closely to a wall of the borehole by expanding the first and second packers when the dropped sample collecting container arrives at the predetermined;
(D) collecting the sample at an outside of a casing constituting the borehole;
(E) separating the first and second packers from each other when the collecting of the sample is completed;
and
(F) retrieving the sample collecting container filled with the sample from the borehole.

4 more elements

An apparatus of collecting a sample using a multi-packer, the apparatus comprising:

a sample collecting container dropped down into a borehole in order to collect a sample;
a sample collecting cylinder adhering to an inner side of the sample collecting container;
a sample collecting rod protruding from the sample collecting cylinder;
a sample collecting part formed corresponding to the sample collecting rod protruding from the sample collecting cylinder and formed at one side wall of a casing constituting the borehole;
a contaminated water discharging vessel installed to a lower end of the sample collecting container to discharge contaminated water in the borehole;
and
a first packer adhering to and surrounding an outer portion of a top end of the sample collecting container and a second packer adhering to and surrounding an outer portion of a bottom end of the contaminated water discharging vessel at a lower portion of the sample collecting container,
wherein an electronic switching valve is formed in the contaminated water discharging vessel which is opened or closed to receive contaminated water between the first and second packers.

5 more elements

Dependencies are inferred from the claim text.

Method of collecting sample using multi-packer and apparatus thereof

Life of this patent

Method of collecting sample using multi-packer and apparatus thereof

Life of this patent

Abstract

Claims17