Bridge type concentric direct reading testing and commissioning instrument

Patent metadata

Field	Value
Publication number	US-9874089-B2
Application number	US-201314765287-A
Country	US
Kind code	B2
Filing date	Jun 6, 2013
Priority date	Feb 1, 2013
Publication date	Jan 23, 2018
Grant date	Jan 23, 2018

Abstract

A bridge concentric direct-reading testing and adjusting instrument, comprising a cable head connected to a pressure sensor; a supporting mechanism having a pair of supporting arms; a sliding power mechanism including a power motor, a spring, an impact hammer and a one-way clutch assembly, the impact hammer slidably connected to the power motor to be rotated along with rotation of the power motor, a lower end of the impact hammer detachably connected to the one-way clutch assembly, and the one-way clutch assembly connecting the supporting arms via a transmission assembly to control opening and closing of the supporting arms; a flowmeter; and an adjusting actuator including an adjusting motor, an adjusting connector and an adjusting arm, the adjusting arm used for adjusting a waterflooding flow rate through rotation of the adjusting arm.

First claim

The invention claimed is:

1. A bridge concentric direct-reading testing and adjusting instrument, comprising:
a cable head ( 1 ) having a lower end connected to a pressure sensor ( 3 ) via a circuit board ( 2 );
a supporting mechanism ( 4 ) having a supporting arm fixing base ( 4 b ) and a pair of supporting arms ( 4 a ) connected to the supporting arm fixing base ( 4 b );
an inclination well sliding power mechanism ( 5 ) positioned below the pressure sensor ( 3 ), the power mechanism being connected above the supporting mechanism ( 4 ) and including a power motor ( 5 a ), a spring ( 5 b ), an impact hammer ( 5 c ) and a one-way clutch assembly ( 5 d ), the spring ( 5 b ) positioned between the power motor ( 5 a ) and the impact hammer ( 5 c ), the impact hammer ( 5 c ) slidably connected to the power motor ( 5 a ) and to be rotated along with rotation of the power motor ( 5 a ), a lower end of the impact hammer ( 5 c ) detachably connected to the one-way clutch assembly ( 5 d ), and the one-way clutch assembly ( 5 d ) connecting the supporting arms ( 4 a ) via a transmission assembly ( 5 e ) to control opening and closing of the supporting arms ( 4 a );
a flowmeter ( 6 ) positioned below the supporting mechanism ( 4 ) and connected to the circuit board ( 2 ); and
an adjusting actuator ( 7 ) connected below the flowmeter ( 6 ) and including an adjusting motor ( 7 a ), an adjusting connector ( 7 b ) and an adjusting arm ( 7 c ), the adjusting motor ( 7 a ) being connected to the adjusting arm ( 7 c ) via the adjusting connector ( 7 b ), wherein the adjusting arm ( 7 c ) can adjust a waterflooding flow rate through rotation of the adjusting arm ( 7 c ).

2. The bridge concentric direct-reading testing and adjusting instrument according to claim 1 , wherein the one-way clutch assembly ( 5 d ) includes an one-way clutch shaft ( 5 d 1 ), an one-way clutch fixing base ( 5 d 2 ), an one-way thrust ball bearing ( 5 d 3 ) and an one-way clutch ( 5 d 4 ), the one-way clutch fixing base ( 5 d 2 ) being fitted outside the one-way clutch shaft ( 5 d 1 ), the one-way clutch ( 5 d 4 ) being provided between the one-way clutch fixing base ( 5 d 2 ) and the one-way clutch shaft ( 5 d 1 ), a shaft head of the one-way clutch shaft ( 5 d 1 ) having an embedding portion ( 5 d 5 ), the one-way thrust ball bearing ( 5 d 3 ) being fitted outside the one-way clutch shaft ( 5 d 1 ) and provided between the shaft head and the one-way clutch fixing base ( 5 d 2 ), one end of the transmission assembly ( 5 e ) being circumferentially and fixedly connected to the inside of the one-way clutch shaft ( 5 d 1 ), and a lower end of the impact hammer ( 5 c ) being fixedly connected to a shaft sleeve ( 5 c 1 ) which is embedded in the embedding portion ( 5 d 5 ) when the one-way clutch ( 5 d 4 ) is unlocked and which is detached from the embedding portion ( 5 d 5 ) when the one-way clutch ( 5 d 4 ) is locked.

3. The bridge concentric direct-reading testing and adjusting instrument according to claim 2 , wherein the transmission assembly ( 5 e ) includes a transmission shaft ( 5 e 1 ), a supporting wheel ( 5 e 2 ) and a cam ( 5 e 3 ), the transmission shaft ( 5 e 1 ) being circumferentially and fixedly connected to the inside of the one-way clutch shaft ( 5 d 1 ), the supporting wheel ( 5 e 2 ) and the cam ( 5 e 3 ) being respectively circumferentially and fixedly fitted outside the transmission shaft ( 5 e 1 ), the cam ( 5 e 3 ) being positioned below the supporting wheel ( 5 e 2 ), the outside of the cam ( 5 e 3 ) being connected to one end of the supporting arms ( 4 a ), and the other end of the supporting arms ( 4 a ) being opened or closed as the cam ( 5 e 3 ) rotates.

4. The bridge concentric direct-reading testing and adjusting instrument according to claim 3 , wherein the outside of the transmission shaft ( 5 e 1 ) is fitted by a base pressing ring ( 5 e 4 ) and a transmission spring ( 5 e 5 ), the base pressing ring ( 5 e 4 ) being circumferentially fixed relative to the transmission shaft ( 5 e 1 ) and being positioned below the one-way clutch assembly ( 5 d ), one end of the transmission spring ( 5 e 5 ) abutting against the base pressing ring ( 5 e 4 ), and the other end thereof abutting against the supporting wheel ( 5 e 2 ).

5. The bridge concentric direct-reading testing and adjusting instrument according to claim 2 , wherein the shaft head of the one-way clutch shaft ( 5 d 1 ) includes a functional conversion portion including a group of two-eared pulleys ( 5 d 6 ) and a group of dual-spiral slopes ( 5 d 7 ), an end face of the two-eared pulley ( 5 d 6 ) being the dual-spiral slope ( 5 d 7 ), and the embedding portion ( 5 d 5 ) being formed between the two-eared pulleys ( 5 d 6 ).

6. The bridge concentric direct-reading testing and adjusting instrument according to claim 1 , wherein the bridge concentric direct-reading testing and adjusting instrument further comprises a bladder actuator ( 8 ) and a sealing bladder assembly ( 9 ), the bladder actuator ( 8 ) being connected above the sealing bladder assembly ( 9 ), and the sealing bladder assembly ( 9 ) being connected below the adjusting actuator ( 7 ) and including a sealing bladder ( 9 a ), which can be expanded or contracted via the bladder actuator ( 8 ).

7. The bridge concentric direct-reading testing and adjusting instrument according to claim 6 , wherein the bladder actuator ( 8 ) includes a bladder motor ( 8 a ), a cylindrical cam ( 8 b ), an inner sliding sleeve ( 8 c ) and an outer sliding sleeve ( 8 d ), the bladder motor ( 8 a ) driving the cylindrical cam ( 8 b ) to rotate, the outer sliding sleeve ( 8 d ) being connected to the outside of the inner sliding sleeve ( 8 c ), the inner sliding sleeve ( 8 c ) and the outer sliding sleeve ( 8 d ) capable of sliding upwards or downwards together as the cylindrical cam ( 8 b ) rotates, and the sealing bladder assembly ( 9 ) driving the sealing bladder ( 9 a ) to be expanded by pressing or contracted by pulling as the outer sliding sleeve ( 8 d ) slides upwards or downwards.

8. The bridge concentric direct-reading testing and adjusting instrument according to claim 7 , wherein the sealing bladder assembly ( 9 ) further includes:
a bladder fixing sleeve ( 9 b ) having an upper end connected to the outer sliding sleeve ( 8 d ) and capable of sliding upwards or downwards;
a bladder supporting shaft ( 9 c ) in the form of a stepped shaft having a first shaft portion ( 9 c 1 ) and a second shaft portion ( 9 c 2 ), with a stepped surface ( 9 c 3 ) being provided between the first shaft portion ( 9 c 1 ) and the second shaft portion ( 9 c 2 ), one end of the sealing bladder ( 9 a ) being fixedly connected to the bladder fixing sleeve ( 9 b ), and the other end of the sealing bladder ( 9 a ) being fixedly connected to the bladder supporting shaft ( 9 c ); and
a restoration spring ( 9 d ) fitted outside the first shaft portion ( 9 c 1 ) and having one end abutting against the bladder fixing sleeve ( 9 b ) and the other end abutting against the stepped surface ( 9 c 3 ) of the bladder supporting shaft ( 9 c ).

9. The bridge concentric direct-reading testing and adjusting instrument according to claim 8 , wherein the outer sliding sleeve ( 8 d ) is formed into a first outer sliding sleeve ( 8 d 1 ) and a second outer sliding sleeve ( 8 d 2 ) in an up-down order, with the first outer sliding sleeve ( 8 d 1 ) fixedly connected to the inner slid

Assignees

• Petrochina Co Ltd

Inventors

• Liu He
• Pei Xiaohan
• Sun Fuchao
• Zheng Lichen
• Yang Qinghai
• Gao Yang

Classifications

• E21B47/10 Primary

  Locating fluid leaks, intrusions or movements · CPC title

• E21B23/00

  Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells (setting of casings, screens or liners E21B43/10) · CPC title

• E21B43/20

  Displacing by water · CPC title

• E21B4/06

  Down-hole impacting means, e.g. hammers (boring rams E21B11/02) · CPC title