KR101677484B1

KR101677484B1 - Gauge Carrier And Temperature And Pressure Measuring Method for Using The Same In The Downhole

Info

Publication number: KR101677484B1
Application number: KR1020150098975A
Authority: KR
Inventors: 장태헌
Original assignee: 장태헌
Priority date: 2015-07-13
Filing date: 2015-07-13
Publication date: 2016-11-18

Abstract

A method of measuring temperature and pressure in a gauge carrier and a leveling table using the same.
A gauge carrier moving within a tubing, comprising: a high pressure vessel for compressing and storing air above the pressure of the reservoir; A piston assembly including a piston therein and lowering the piston to a lower portion of the cylinder when the high-pressure vessel is opened; A fixing device connected to a lower portion of the piston assembly to fix the gauge carrier at a lower portion of the tubing; And a weight coupled to the securing device to help the gage carrier move down the tubing.

Description

METHOD FOR MEASURING TEMPERATURE AND PRESSURE IN GAUGING CARRIER AND METHOD OF MEASURING TEMPERATURE AND PRESSURE IN A CIRCLE USING THE SAME

This embodiment relates to a gauge carrier and a method for measuring temperature or pressure in a gauge using the gauge carrier, and more particularly to the design and utilization of a gauge carrier operating in the well.

The contents described in this section merely provide background information on the present embodiment and do not constitute the prior art.

In order to understand the production characteristics of the reservoir during the development of crude oil and gas, it is very important to measure the reservoir pressure changes due to the pressure and temperature of the reservoir itself, production and hydraulic fracturing. To do this, a down-hole gauge is used, which can be mounted on a gauge carrier attached to the tubing, or attached to a gauge hanger to provide a cable, such as a wireline or slickline, After the cable is taken down, the cable is collected. After the pressure data is obtained, the cable is sent back to the cable gauge hanger, and the cable is connected to the wire line or slick line. have. However, in all three cases, the installation and retrieval of the gauge is costly and requires withdrawal of the tubing, the use of a wire line or a slick line, and in many cases the acquisition of necessary pressure and temperature data is abandoned .

In order to solve the above-mentioned problem, the present embodiment measures the reservoir pressure and temperature by self-leveling down without the help of the number of the tubing, the wire line and the slick line, And to provide a method for designing, manufacturing, and utilizing the gauge carrier which is recovered by being wound up.

According to an aspect of this embodiment, there is provided a gauge carrier moving within a tubing, comprising: a high-pressure vessel for compressing and storing air higher than the pressure of the reservoir; A piston assembly including a piston therein and lowering the piston to a lower portion of the cylinder when the high-pressure vessel is opened; A fixing device connected to a lower portion of the piston assembly to fix the gauge carrier at a lower portion of the tubing; And a weight coupled to the securing device to help the gage carrier move down the tubing.

Also disclosed is a method for measuring temperature and pressure in a gauge using a gauge carrier comprising a high pressure vessel including a valve and a timer, a piston assembly and an anchor, the method comprising the steps of: (A) ; (B) the process of unfolding an anchor; (C) the process in which the gauge measures temperature or pressure; (D) opening the valve; (E) a process in which the piston descends; (F) The process of folding an anchor; And (G) a process in which the gauge and the carrier are lifted, using the gauge carrier.

According to this embodiment, the gauge carrier which operates by itself is utilized to obtain the pressure and temperature data by lowering the bottom gauge to the bottom without help of the tubing, the wire line, and the slick line, Lt; / RTI >

In addition, the use of such carriers is not limited to the gauge gauge, but can be applied to many of the observing devices that have been downsized using existing wire and slick lines, such as VSP equipment or geostationary cameras, It is also possible to construct a passive sized array in the production chamber when the geophones are sequentially routed down.

1 is a diagram showing an initial configuration of a gauge carrier according to the present embodiment.
Fig. 2 is a view showing a state in which the gauge carrier according to the present embodiment reaches the bottom of the gauge.
3 is a view showing a state in which the valve of the high-pressure vessel according to the present embodiment is opened.
4 is a view showing a state in which the piston is lowered as the valve of the high-pressure vessel according to the present embodiment is opened.
5 is a view showing a state in which the recovery activator of the fixing device is lowered and the anchor is folded as the piston is lowered according to the present embodiment.
6 is a view showing a state in which the gauge carrier according to the present embodiment is lifted in the tubing.
7 shows a flow chart showing a method of measuring temperature and pressure in a jig using a gauge carrier according to the present embodiment.

Hereinafter, some embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that, in the drawings, like reference numerals are used to denote like elements in the drawings, even if they are shown in different drawings. In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present disclosure rather unclear.

In describing the constituent elements of this embodiment, first, second, i), ii), a), b) and the like can be used. Such a code is intended to distinguish the constituent element from other constituent elements, and the nature of the constituent element, the order or the order of the constituent element is not limited by the code. It is also to be understood that when an element is referred to as being "comprising" or "comprising", it should be understood that it does not exclude other elements unless explicitly stated to the contrary, do.

Hereinafter, a gauge carrier according to an embodiment of the present invention and a method of measuring temperature and pressure in a gauge using the gauge carrier will be described with reference to the accompanying drawings.

1 is a diagram showing an initial configuration of a gauge carrier according to the present embodiment. Fig. 2 is a view showing a state in which the gauge carrier according to the present embodiment reaches the bottom of the gauge. 3 is a view showing a state in which the valve of the high-pressure vessel according to the present embodiment is opened. 4 is a view showing a state in which the piston is lowered as the valve of the high-pressure vessel according to the present embodiment is opened. 5 is a view showing a state in which the recovery activator of the fixing device is lowered and the anchor is folded as the piston is lowered according to the present embodiment. 6 is a view showing a state in which the gauge carrier according to the present embodiment is lifted in the tubing.

First, the configuration of the gauge carrier and the role of each configuration will be described with reference to FIG.

The gauge carrier 20 includes a high-pressure vessel 100, a piston assembly 200, a fastening device 300, and a weight 400.

The high-pressure vessel 100 may further include a valve 120, a timer 110, and a vertical fin 130. The high-pressure vessel 100 compresses and stores carbon dioxide so that the carrier 20 is higher than the reservoir pressure. The gas may be an inert gas other than carbon dioxide.

The high-pressure vessel 100 is in the form of a cylinder or quadrangle, and the upper surface of the high-pressure vessel 100 is connected to the gauge 10. The gauge 10 is fixed above the high-pressure vessel 100 for stable temperature and pressure measurements.

The valve 120 is for opening and closing between the high-pressure vessel 100 and the piston assembly 200 to be described later and is on the lower surface of the high-pressure vessel 100, and the valve 120 Is opened to the inside of the high-pressure vessel 100 so as not to be easily opened. 3, the valve 120 is opened, and the carbon dioxide in the high-pressure vessel 100 is higher than the pressure in the reservoir layer so that the piston assembly 200, described below, .

The vertical pin 130 may be installed in the space between the high-pressure vessel 100 and the piston assembly 200 in case the timer 110 fails, and the vertical pin 130 may be installed in the space between the high- The valve 120 is forced in the direction of the high-pressure vessel 100 to open it.

The piston assembly 200 includes a cylinder 220, a piston 210 and a water outlet 240 as a space for creating the buoyancy required for the carrier 20 to rise.

The piston 210 is a device that can move up and down inside a cylinder 220 in a cylindrical form. In an initial state, the piston 210 is positioned above the cylinder 220. The interior of the cylinder 220 in the initial state is filled with water. In this case, the buoyant force is small and the carrier is lowered.

4, when the piston 210 of the high-pressure vessel 100 is opened and the high-pressure carbon dioxide is diffused and the piston 210 is pushed to the bottom of the cylinder 220, And is discharged to the outside of the cylinder 220 through the discharge port 240. The inside of the cylinder 220 is filled with carbon dioxide.

The buoyancy of the high pressure vessel 100 and the cylinder 220 is proportional to the volume so that the weight of the carrier 20 and the gauge 10 can be increased so that the weight of the gauge including the carrier 20 can be raised. .

Between the piston 210 and the cylinder 220, water or carbon dioxide is completely adhered to prevent the passage of water or carbon dioxide.

At the center of the lower surface of the piston 210, there is a push rod 230 extending perpendicularly to the lower surface in the direction of the fastening device 300. The push rod 230 connects the recovering activator 330 and the piston 210 to transmit the force generated by the descent of the piston 210 to the recovery activator 330 as shown in FIG.

The push rod 230 may further include a connecting rod 250 at the lower end thereof and the connecting rod 250 may be received by the piston 210 without the push rod 230 hitting the upper end of the anchor 320. [ And sends the force to the recovery activator 330 to push the recovery activator 330 downward. The connection rod 250 is connected to the recovery activator 330 by two or more rods so that when the piston 210 moves to the lower portion of the cylinder 220, the push rod 230 contacts the connection rod 250 and the recovery activator 330, .

The water outlet 240 is a plurality of holes located below the cylinder 220 so that water can freely pass through the inside and outside of the cylinder 220. When the valve 120 of the high pressure vessel 100 is opened, The water in the cylinder 220 is discharged out of the cylinder 220 so as to be easily lowered.

1, the securing device 300 of the present disclosure secures the carrier 20 to the tubing 30 so that the gauge 10 can stably measure the required pressure and temperature at the bottom of the housing, An anchor 320, a recovery activator 330, and a setting activator 340. The anchor 320, the recovery activator 330,

The upper portion of the housing 310 is connected to the piston assembly 200 and the push rod 230 passes through the center of the upper portion of the fixing device 300 Holes are formed.

The anchor 320 functions to fix the carrier 20 in contact with the inside of the tubing 30 and the anchor 320 fixes the upper portion of the two long bars with pins or the like so that the lower portion of the bar is folded, V 'in the reverse direction.

The two bars include a fixing portion 360 protruding outward from the housing 310 of the fixing device 300 by being bent in the outward direction of the fixing device so as to be in a straight line shape but a part of the lower side is horizontal with the ground.

The fixing portion 360 is a lower portion of the two bars constituting the anchor 320 and is a portion that is in close contact with the tubing 30. A hole is formed in a side surface of the housing 310 where the fixing portion 360 is positioned so that a part of the fixing portion 360 may be exposed to the outside of the fixing device 300.

A portion of the fixing portion 360 is exposed to the outside of the housing 310 through the hole located at the side of the housing 310 and is always located in the side hole of the housing 310, As the anchor 320 is folded and unfolded, the fixing portion 360 performs a linear motion in the left and right directions.

When the anchor 320 is folded or unfolded, the fixing part 360 linearly moves in a direction perpendicular to the surface of the housing 310 which is in contact with the side surface thereof, so that the fixing part 360 contacts the tubing 30, Fall off.

The end of the fixing portion 360 is a portion where the fixing portion 360 meets the tubing 30 and includes a number of protrusions 365 for increasing the degree of tightness with the tubing 30. A large number of protrusions 365 push the tubing 30 against the pressure So that the carrier 20 can be fixed to the tubing 30 with a strong pressing force by the tubular member 30.

A compression spring 350 is connected between the two bars of the anchor 320 and the compression spring 350 is connected to the lower portion of the bar to maintain a force for moving the two bars of the anchor 320 away from each other. Accordingly, if there is no other external force, the anchor 320 is held in the deployed state by the compression spring 350 and is brought into close contact with the tubing 30.

In this way, a tension spring may be connected between the bar and the housing 310 in order to strengthen the force with which the fixing part 360 is brought into close contact with the tubing 30, thereby helping the two bars to move away.

The fixing pin 370 is mounted under the anchor 320 to prevent the anchor 320 from being unfolded accidentally when the wire 390 is not initially tensioned. The fixing pin 370 is inserted into the tubing so that the tension is applied to the wire 390 so that the anchor 320 can be unfolded when the setting activator 340 is moved.

The setting activator 340 is connected to the weight 400 to maintain the anchor 320 in a folded state so that the anchor 320 does not come into contact with the inside of the tubing 30 and has a ring shape. The setting activator 340 is connected to the weight 400 through a wire 390. [ Accordingly, the tensile force is retained on the wire 390 by the weight 400 when the carrier 20 is lowered.

It may further include an X-shaped wire 380 in the form of an 'X' inside the loop to connect between the wire 390 and the setting activator 340, and may further include a wire 390 directly connected to the setting activator 340 It is also possible to connect.

1, due to the weight of the weight 400 when the carrier 20 descends in the tubing 30, the setting activator 340 may be pulled down to maintain the anchor 320 in a folded state So that the projecting portion of the anchor 320 does not touch the tubing 30, so that the carrier 20 can be easily lowered in the tubing 30.

2, when the carrier 20 comes down to the bottom of the tubing 30 and the weight 400 touches the floor and the wire 390 loosens, the weight 400 moves down the setting activator 340 The anchor 320 is unfolded due to the force of the compression spring 350 to unfold the anchor 320. As the anchor 320 is unfolded, the setting activator 340 moves up to the top of the anchor 320 I will go.

It is preferable that the portion where the setting activator 340 meets the anchor 320 is provided with a bearing or the like so that the setting activator 340 can easily ascend to the upper portion of the anchor 320.

The recovery activator 330 folds the anchor 320 so as to separate the fixing portion 360 which is the lower portion of the anchor 320 from the tubing 30 when the carrier 20 is to be lifted after a predetermined time, And has a ring shape similar to the setting activator 340. [

5, the recovery activator 330 is connected to the push rod 230 so that when the piston 210 descends, the push rod 230 connected to the piston 210 vertically contacts the recovery activator 330 It pushes down.

Accordingly, the recovery activator 330 pushes down the setting activator 340 and collapses the deployed anchor 320 so that the anchor 320's fixed portion 360 is separated from the tubing 30, So that it can move.

7 shows a flow chart showing a method of measuring temperature and pressure in a jig using a gauge carrier according to the present embodiment.

Hereinafter, a method of measuring the temperature and the pressure at the bottom of the gauge carrier using the gauge carrier according to the present embodiment will be described.

The user proceeds to a step S100 of setting a timer. The user sets the timer 110 in consideration of the time at which the gauge 10 and the carrier 20 descend the tubing 30 and the time at which the gauge 10 measures the temperature or pressure at the down hole.

The process proceeds to step S200 in which the gauge and carrier descend. The carrier 20 including the gauge 10 is lowered toward the bottom of the tubing 30 as shown in FIG. The carrier 20 and the gauge 10 are naturally lowered due to the weight of the carrier 20 including the weight 400 and the gauge 10.

At this time, the carbon dioxide in the high-pressure vessel 100 is maintained in a liquid state, and when the ambient temperature reaches a critical temperature during the descent of the gauge carrier, it is converted to a gaseous state,

The process of expanding the anchor (S300) is performed. 2, when the carrier 20 reaches the bottom and the weight 400 is brought into contact with the ground, the tension that the weight 400 pulls the setting activator 340 through the wire 390 disappears, ) Is loosened. The anchor 320 is expanded by the compression spring 350 between the anchors 320 so that the anchor 320 of the anchor 320 is brought into close contact with the tubing 30, Is fixed.

When the anchor 320 is unfolded, the setting activator 340 naturally rises to the top of the anchor 320, and in this case, in order to facilitate raising the setting activator 340 to the top of the anchor 320, It is also possible to provide a bearing at a portion where the setting activator 340 abuts the anchor 320.

The gauge proceeds to a step of measuring temperature or pressure (S400). The gauges 10 secured to the top of the high-pressure vessel 100 of the carrier 20 are also located at the inner one-point depth of the tubing 30 because the carrier 20 is fixed at the bottom.

Since the gauge 10 is in a stationary state, the temperature and the pressure can be stably measured, and the measurement can be performed by the timer 110 until the valve 120 of the high-pressure vessel 100 is opened.

The process of opening the valve (S500) is performed. The temperature and pressure of the lower portion of the tubing 30 are measured by the gauge 10 and the valve 120 of the high pressure vessel 100 is opened as shown in FIG. Since the high-pressure carbon dioxide is compressed and stored in the high-pressure vessel 100, when the valve 120 is opened, carbon dioxide in the high-pressure vessel 100 is diffused toward the piston assembly 200 in which the valve 120 is opened.

However, if there is no timer 110 or if the timer 110 fails, the valve 120 must be forcibly opened and the valve 120 is opened using the vertical pin 130 under the high- Can be opened and performed.

The process proceeds to step S600 in which the piston descends. The carbon dioxide in the high-pressure vessel 100 is diffused into the piston assembly 200 and the piston 210 is lowered as shown in FIG. As the piston 210 descends, the water in the cylinder 220 flows out of the cylinder 220 through the water outlet 240.

As the piston 210 descends, the inside of the cylinder 220 is cooled with gas such as carbon dioxide in addition to the high-pressure vessel 100. The gas thus expanded provides buoyancy in accordance with the density difference with water present on the outside, and becomes an energy source that causes the carrier 20 to float on its own.

Since the buoyancy is proportional to the size of the space containing the carbon dioxide, the size of the piston assembly 20 and the size of the high-pressure vessel (not shown) may be adjusted to have buoyancy to float the carrier 20 including the weight 400 and the gauge 10 100 should be designed in consideration of the degree of compression of carbon dioxide.

The process proceeds to step S700 where the anchor is folded. As the piston 210 in the cylinder 220 descends as shown in FIG. 5, the push rod 230 connected to the piston 210 pushes the recovery activator 330 downward. The recovery activator 330 pushes down the setting activator 340 and at the same time collapses the anchor 320 so that the anchors 320 under the anchors 320 are detached from the tubing 30.

The carrier 20 can be moved away from the fixed state to the tubing 30 by moving the fixed portion 360 of the anchor 320 away from the tubing 30.

The process proceeds to step S800 in which the gauge and carrier ascend. The anchor 320 is folded so that the carrier 20 can move and the carrier 20 can be lifted due to the buoyancy in the carrier 20. As a result, The carrier 20 and the gauge 10 attached to the upper portion can be recovered.

The present invention is not intended to limit the scope of the present invention but to limit the scope of the present invention. The scope of protection of the present invention should be construed according to the claims, and all technical ideas considered to be equivalent or equivalent thereto should be construed as being included in the scope of the present invention.

100: high pressure vessel 200: piston assembly
300: Fixing device 320: Anchor
330: Recovery activator 340: Setting activator
400: Chu

Claims

In a gauge carrier moving within a tubing,
A high pressure vessel for compressing and storing air higher than the pressure of the reservoir;
A piston assembly including a piston therein and lowering the piston to a lower portion of the cylinder when the high-pressure vessel is opened;
A fixing device connected to a lower portion of the piston assembly to fix the gauge carrier at a lower portion of the tubing; And
And a weight coupled to the securing device to help the gauge carrier move down the tubing,
The fastening device
An anchor that contacts the interior of the tubing to secure the gauge carrier;
A setting activator coupled to the weight to prevent the anchor from contacting the tubing; And
And a recovery activator for folding a lower portion of the anchor as the piston descends to move the carrier.

delete

The method according to claim 1,
The anchor is composed of two bars fixed to the upper part,
Wherein the lower portion of the bar includes a fixed portion that is in close contact with the tubing,
In order to increase the degree of contact with the tubing, the fixing portion has a plurality of projections
Further comprising a gauge carrier.

The method of claim 3,
And a compression spring for pushing the anchor outwardly under the anchor to secure the carrier to the tubing.

5. The method of claim 4,
A fixing pin for preventing the anchor from being opened when the carrier is lowered;
Further comprising a gauge carrier.

6. The method of claim 5,
Wherein the weight and the setting activator are connected by a wire.

The method according to claim 1,
The piston assembly
And a water outlet for forming a plurality of holes in a lower portion of the piston assembly so that the piston can be easily lowered,
The piston including a push rod extending perpendicularly to the bottom surface and connected to the recovery activator.

8. The method of claim 7,
Wherein the size of the piston assembly is designed in consideration of buoyancy that can raise the gauge carrier.

The method according to claim 1,
The high-
A valve for opening and closing between the high-pressure vessel and the piston assembly, and
And a timer for signaling to open the valve after the set time.

10. The method of claim 9,
Wherein the high pressure vessel further comprises a vertical pin forcibly opening the valve regardless of the timer.

A method of measuring temperature and pressure in a grate using a gage carrier comprising a high pressure vessel including a valve and a timer, a piston assembly and a fixture including an anchor,
(A) a process in which a gage and a carrier descend;
(B) the process of unfolding an anchor;
(C) the process in which the gauge measures temperature or pressure;
(D) opening the valve;
(E) a process in which the piston descends;
(F) The process of folding an anchor; And
(G) the process of gage and carrier ascending;
Wherein the temperature and pressure are measured in a gauge carrier using a gauge carrier.

12. The method of claim 11,
(A) The process in which the user sets a timer before the process
Wherein the temperature and pressure are measured in a gauge carrier using a gauge carrier.