CN210105839U

CN210105839U - Combined logging instrument for output profile of coal-bed gas well

Info

Publication number: CN210105839U
Application number: CN201920232977.4U
Authority: CN
Inventors: 宋绪琴
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-02-25
Filing date: 2019-02-25
Publication date: 2020-02-21
Anticipated expiration: 2029-02-25

Abstract

A coal bed gas well output profile combined logging instrument comprises an electrically connected well temperature and pressure magnetic positioning function pup joint, a thermal tracing-probe pushing pup joint and a microwave-turbine flowmeter pup joint, wherein a single-core plug and a first interface are arranged at two ends of the well temperature and pressure magnetic positioning function pup joint, and a magnetic positioning sensor, a first electronic circuit, a temperature sensor and a pressure sensor are arranged between the single-core plug and the first interface; a second connector and a second interface are arranged at two ends of the hot tracing-probe pushing nipple, a second electronic circuit, a support arm, a push rod, a coupler, a ball screw and a direct current speed reduction motor are arranged between the first connector and the second interface, and a hot tracing sensor and a probe sensor are arranged on the support arm; and a second joint and a handle are arranged at two ends of the short section of the microwave-turbine flowmeter, and a third electronic circuit, a microwave sensor and a turbine flowmeter are arranged between the second joint and the handle. The utility model discloses structural design is compact, highly integrated, can carry out the multi-parameter measurement simultaneously, and application method is simple.

Description

Combined logging instrument for output profile of coal-bed gas well

Technical Field

The utility model relates to a coal bed gas well detects apparatus, in particular to coal bed gas well output profile combination logging instrument.

Background

The coal bed gas well is mostly produced in multiple layers, the gas and water yield of the productivity condition of each production layer needs to be determined, and the main coal beds for producing water and gas are determined.

SUMMERY OF THE UTILITY MODEL

The utility model provides a coal bed gas well output profile combination logging instrument, its simple structure, convenient popularization to the above-mentioned among the prior art.

In order to achieve the above object, the utility model adopts the following technical scheme:

a coal-bed gas well output profile combined logging instrument comprises a well temperature and pressure magnetic positioning function pup joint, a thermal tracing-probe pushing pup joint and a microwave-turbine flowmeter pup joint which are electrically connected, wherein a single-core plug and a first interface are respectively arranged at two ends of the well temperature and pressure magnetic positioning function pup joint, and a magnetic positioning sensor, a first electronic circuit, a temperature sensor and a pressure sensor which are electrically connected are sequentially arranged between the single-core plug and the first interface; a second connector and a second interface are respectively arranged at two ends of the hot tracing-probe pushing nipple, a second electronic circuit, a support arm, a push rod, a coupler, a ball screw and a direct current speed reduction motor which are electrically connected are sequentially arranged between the first connector and the second interface, and a hot tracing sensor and a probe sensor which are electrically connected with the second electronic circuit are arranged on the support arm; and a second joint and a handle are respectively arranged at two ends of the short section of the microwave-turbine flowmeter, and a third electronic circuit, a microwave sensor and a turbine flowmeter which are electrically connected are sequentially arranged between the second joint and the handle.

Preferably, the first interface and the second interface are both provided with multi-core contacts.

Preferably, the first joint and the second joint are both provided with multi-core contact slip rings matched with the multi-core contacts.

Preferably, the push rod is connected with the ball screw through a ball screw nut.

Preferably, the first electronic circuit, the second electronic circuit and the third electronic circuit are all recording and measuring circuits.

The utility model has the advantages that: the device has compact structural design and high integration of mechanical and circuit parts, can simultaneously carry out multi-parameter measurement, is suitable for testing various complex two-phase flowing coal bed gas wells, and has simple and reliable use method.

Drawings

FIG. 1 is a schematic structural diagram of a combined logging tool for the output profile of a coal-bed gas well;

FIG. 2 is a schematic structural view of the middle well temperature pressure magnetic positioning function nipple of the utility model;

fig. 3 is a schematic structural diagram of the hot tracing-probe pushing nipple of the present invention;

fig. 4 is a schematic structural diagram of a short joint of the microwave-turbine flowmeter of the present invention;

1-single core plug, 2-magnetic positioning sensor, 3-first electronic circuit, 4-temperature sensor, 5-pressure sensor, 6-first interface, 7-first joint, 8-second electronic circuit, 9-supporting arm, 10-heat tracing sensor, 11-probe sensor, 12-push rod, 13-ball screw nut, 14-ball screw, 15-coupler, 16-direct current gear motor, 17-second socket, 18-second joint, 19-third electronic circuit, 20-microwave sensor, 21-turbine sensor, 22-handle, A-well temperature and pressure magnetic positioning function pup joint, B-heat tracing-probe pushing pup joint and C-microwave-turbine flowmeter pup joint.

Detailed Description

In order to make the content of the present invention more clearly understood, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the attached drawings in the embodiment of the present invention.

As shown in fig. 1-4, a combined logging instrument for the output profile of a coal-bed gas well comprises an electrically connected well temperature and pressure magnetic positioning function pup joint a, a thermal tracing-probe pushing pup joint B and a microwave-turbine flowmeter pup joint C, wherein a single core plug 1 and a first interface 6 are respectively arranged at two ends of the well temperature and pressure magnetic positioning function pup joint a, a multi-core contact is arranged in the first interface 6, and a magnetic positioning sensor 2, a first electronic circuit 3, a temperature sensor 4 and a pressure sensor 5 which are electrically connected are sequentially arranged between the single core plug and the first interface;

a second connector 7 and a second interface 17 are respectively arranged at two ends of the hot tracing-probe pushing nipple B, a multi-core contact slip ring matched with the multi-core contact is arranged on the first connector 7, a second electronic circuit 8, a support arm 9, a push rod 12, a ball screw 14, a coupler 15 and a direct-current speed reducing motor 16 which are electrically connected are sequentially arranged between the first connector 7 and the second interface 17, a hot tracing sensor 10 and a probe sensor 11 which are electrically connected with the second electronic circuit 8 are arranged on the support arm 9, and the push rod 12 is connected with the ball screw 14 through a ball screw 14 nut 13;

a second joint 18 and a handle 22 are respectively arranged at two ends of the microwave-turbine flowmeter pup joint C, a multi-core contact slip ring matched with the multi-core contact is arranged on the second joint 18, and a third electronic circuit 19, a microwave sensor 20 and a turbine flowmeter which are electrically connected and used for recording measurement are sequentially arranged between the second joint 18 and the handle 22.

The utility model discloses fluid to output in the coal bed gas well is measured, push away and use direct current motor as power, it is rotatory to drive ball 14 to this

drive ball

14, 13 rectilinear movement of nut, and release the outer relevant position of instrument casing with the sensor, the fluid can fully flow through corresponding needle type sensor (needle type sensor measures the component change in the mixed phase), measure fluidic physical parameter by temperature sensor 4, pressure sensor 5, the last quantitative calculation is given vent to anger, the double-phase component characteristic of water.

The utility model discloses mainly by a plurality of function nipple joints promptly well temperature pressure magnetism locate function nipple joint A20, heat trace-probe pushing away nipple joint B21 and microwave-turbine flowmeter nipple joint C22 and constitute, each function nipple joint is through multicore contact, multicore contact sliding ring electrical connection, namely first joint 7 is connected with second interface 17, second joint 18 is connected with second interface 17, make well temperature pressure magnetism locate function nipple joint A, heat trace-probe pushing away nipple joint B, microwave-turbine flowmeter nipple joint C constitute once to connect and form wholly; each functional pup joint is provided with electronic circuits for recording measurement, namely a first electronic circuit 3, a second electronic circuit 8 and a third electronic circuit 19, a direct current speed reducing motor 16, a coupler 15, a ball screw 14, the ball screw 14, a nut 13 and a push rod 12 which are used for pushing in each functional pup joint, a probe type sensor and a microwave sensor 20 which are used for measuring water components, a heat tracing turbine flow sensor which is used for measuring gas-water two-phase components, a temperature sensor 4 and a pressure sensor 5 which are used for measuring a profile in a well and the like to form a measuring system, and the measurement of flow, gas and water contents is completed.

When the utility model is used for logging, firstly, the well temperature and pressure magnetic positioning function short section A20, the thermal tracing-probe pushing short section B21 and the microwave-turbine flowmeter short section C22 are connected in sequence and put into the well, the magnetic positioning sensor 2 in the well temperature and pressure magnetic positioning function short section A20, the first electronic circuit 3, the temperature sensor 4, the pressure sensor 5 continuously measures corresponding parameters, then the microwave sensor 20 in the microwave-turbine flowmeter short section C22, the turbine sensor 21, continuously measure the water content and the fluid flow, at the moment, the direct current speed reducing motor 16 is supplied with positive electricity, the direct current speed reducing motor 16 outputs the rotation in the anticlockwise direction, the shaft coupling 15 connected with the direct current speed reducing motor rotates, then the ball screw 14 fixed together with the shaft coupling 15 rotates in the anticlockwise direction, meanwhile, the ball screw nut 13 drives the rotation of the ball screw 14 to be converted into linear motion, because the ball screw nut 13, the push rod 12 and the support arm 9 are connected and the heat tracing sensor 10 and the probe sensor are fixed on the support arm 9, the whole moves forwards in a straight line; pushing the heat tracing sensor 10 and the probe sensor 11 out to proper positions, wherein at the moment, fluid in the well flows through the heat tracing sensor 10 and the probe sensor 11 to measure the water content and the fluid flow at fixed points of the fluid, at the moment, negative electricity is supplied to the direct current speed reducing motor 16, the direct current speed reducing motor 16 outputs clockwise rotation to drive the coupling 15 connected with the direct current speed reducing motor to rotate, then the ball screw 14 fixed with the coupling 15 is driven to rotate clockwise, meanwhile, the ball screw nut 13 converts the rotation of the ball screw 14 into linear motion, and as the ball screw nut 13, the push rod 12 and the support arm 9 are connected and the heat tracing sensor 10 and the probe sensor are fixed on the support arm 9, the whole moves backwards and linearly; finally, the heat trace sensor 10 fixed on the arm 9 and the probe sensor are retracted to the original position together, and a test is completed.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the structure design is compact, the mechanical and circuit parts are highly integrated, and multi-parameter measurement can be carried out simultaneously;

(2) the sensor is pushed out of the corresponding position outside the instrument shell by a pushing method, and when each component in the coal bed gas well flows through the sensor, the corresponding physical parameter can be measured.

(3) By adopting different modes of pushing point measurement and continuous measurement, the measured result can quantitatively or qualitatively explain the problem of gas-water two-phase output profile test under the normal production condition of the coal-bed gas well, and the method is suitable for testing various complicated two-phase flowing coal-bed gas wells, and is simple and reliable.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, and all modifications, equivalents, improvements and the like that are made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The combined logging instrument for the output profile of the coal-bed gas well is characterized by comprising a well temperature and pressure magnetic positioning function pup joint (A), a heat tracing-probe pushing pup joint (B) and a microwave-turbine flowmeter pup joint (C) which are electrically connected, wherein a single-core plug (1) and a first interface (6) are respectively arranged at two ends of the well temperature and pressure magnetic positioning function pup joint (A), and a magnetic positioning sensor (2), a first electronic circuit (3), a temperature sensor (4) and a pressure sensor (5) which are electrically connected are sequentially arranged between the single-core plug (1) and the first interface (6); a second first connector (7) and a second interface (17) are respectively arranged at two ends of the hot tracing-probe pushing pup joint (B), a second electronic circuit (8), a support arm (9), a push rod (12), a ball screw (14), a coupler (15) and a direct-current speed reduction motor (16) which are electrically connected are sequentially arranged between the first connector (7) and the second interface (17), and a hot tracing sensor (10) and a probe sensor (11) which are electrically connected with the second electronic circuit (8) are arranged on the support arm (9); and a second joint (18) and a handle (22) are respectively arranged at two ends of the short section (C) of the microwave-turbine flowmeter, and a third electronic circuit (19), a microwave sensor (20) and the turbine flowmeter which are electrically connected are sequentially arranged between the second joint (18) and the handle (22).

2. The combined logging instrument for the output profile of a coal-bed gas well as the production profile of the coal-bed gas well as the: and multi-core contacts are arranged in the first interface (6) and the second interface (17).

3. The combined logging instrument for the output profile of a coal-bed gas well as the production profile of the coal-bed gas well as the: and multi-core contact slip rings matched with the multi-core contacts are arranged on the first joint (7) and the second joint (18).

4. The combined logging instrument for the output profile of a coal-bed gas well as the production profile of the coal-bed gas well as the: the push rod (12) is connected with the ball screw (14) through a ball screw nut (13).

5. The combined logging instrument for the output profile of a coal-bed gas well as the production profile of the coal-bed gas well as the: the first electronic circuit (3), the second electronic circuit (8) and the third electronic circuit (19) are all recording and measuring circuits.