CN201687423U - Ball pitching tool for pressurized coring - Google Patents

Ball pitching tool for pressurized coring Download PDF

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Publication number
CN201687423U
CN201687423U CN2010201516202U CN201020151620U CN201687423U CN 201687423 U CN201687423 U CN 201687423U CN 2010201516202 U CN2010201516202 U CN 2010201516202U CN 201020151620 U CN201020151620 U CN 201020151620U CN 201687423 U CN201687423 U CN 201687423U
Authority
CN
China
Prior art keywords
hole
plug
leading screw
ball
pitching
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2010201516202U
Other languages
Chinese (zh)
Inventor
李龙涛
钱可贵
张士超
向峰
于智峰
刘春来
李玉海
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daqing Petroleum Administration Bureau
Original Assignee
Daqing Petroleum Administration Bureau
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Daqing Petroleum Administration Bureau filed Critical Daqing Petroleum Administration Bureau
Priority to CN2010201516202U priority Critical patent/CN201687423U/en
Application granted granted Critical
Publication of CN201687423U publication Critical patent/CN201687423U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a ball pitching tool for pressurized coring, which can be used for coring in petroleum drilling. The utility model mainly solves the problem that the traditional ball pitching process results in high possibility of underground accidents and great labor intensity. The utility model is characterized in that the body of the ball pitching tool is fixed on the side wall of a pipe body, three holes (A, B and C) which are communicated with each other are formed on the body, the hole B is communicated with the pipe body, a steel ball and a push plug are arranged from bottom to top inside the hole A, the top end of the hole A is connected with a plug, a slender rod is arranged in the hole of the plug and is connected with the push plug, a spring on the slender rod is propped against the end surface of the push plug, the top end of the hole C is connected with a screw outer body, the inner hole of the screw outer body is matched with a screw, the lower end of the screw is connected with a movable block capable of moving up and down, a triangular open slot is formed on the movable block, the inclination angle of the lower side surface of the triangular open slot is equal to that of the hole B, and more than one steel ball can be accommodated inside the triangular open slot. Upon the reconnection of a mud line, the ball pitching tool allows the pitching of more than one ball, with no risk of underground accident and less labor intensity required.

Description

A kind ofly be used for the pitching instrument that adding pressure type is cored
Technical field:
The utility model relates to the coring tool that a kind of oil drilling is cored and used, and a kind ofly specifically is used for the pitching instrument that adding pressure type is cored.
Background technology:
Use the adding pressure type coring tool core finish after, need to carry drilling tool, drop into several steel balls, steel ball drops on the gap that adds crimp head and pressure rod, pressurization makes core grabber shrink core breaking to pressure rod to press down drilling tool then.Prior art needs termination of pumping when pitching, dismantle mud line and drop into steel ball, connects the mud line turn on pump then ball is punched in the coring tool, and once can only throw a ball.Labour intensity is big, and operating procedure is many, and frequent termination of pumping has increased the probability of causing danger in the down-hole.
The utility model content:
For not frequent termination of pumping when coring pitching, reduce the probability of causing danger in the down-hole, reduce labour intensity, the utility model provides a kind of pitching instrument that adding pressure type is cored that is used for.This instrument can connect before coring on mud line, core finish after, only dismantle and drop into several balls under the situation of a mud line, avoid causing the down-hole to cause danger, and reduce labor intensity because of frequent termination of pumping.
Technical solutions of the utility model are: a kind ofly be used for the pitching instrument that adding pressure type is cored, comprise body, fixed body on the sidewall of described body has three the hole A that communicate, hole B and hole C on the body; Its mesopore B communicates with body again; Be equipped with steel ball and plunger in the A of hole from bottom to up successively, the top of hole A connects plug, and the hole of plug is built-in with thin bar and is connected with plunger, and the spring on the thin bar withstands on the end face of plunger; The upper end of hole C connects the leading screw ectosome, leading screw ectosome endoporus cooperates leading screw, and the lower end of leading screw connects loose piece moving up and down, and the triangle open mouth groove is arranged on the loose piece, the angle of inclination of the downside of triangle open mouth groove is identical with the angle of inclination of hole B, can put a steel ball in the triangle open mouth groove at least.
The shoulder of described leading screw ectosome is stuck on the upper surface of hole C, and and body and leading screw between be equipped with sealing ring D and sealing ring E; Be equipped with sealing ring F between plug and hole A.
The beneficial effects of the utility model are: because the pitching instrument that this adding pressure type is cored adopts technique scheme, utilize three holes that communicate, under the situation that does not need termination of pumping, driving loose piece by moving up and down of leading screw throws into several steel balls in the coring tool in the mud line, reduced the probability that caused danger in the down-hole because of frequent termination of pumping, simple to operate; This instrument only need mount and dismount mud line one time at a bite well, compared with prior art, both increases work efficiency, and has alleviated labour intensity again.
Description of drawings:
Accompanying drawing 1 is a structural representation of the present utility model
Accompanying drawing 2 is the partial view of accompanying drawing 1.
1-plug among the figure, the thin bar of 2-, 3-spring, 4-plunger, 5-screw mandrel, 6-leading screw ectosome, 7-loose piece, 8-body, 9-body, 10-steel ball, 11-sealing ring F, 12-sealing ring E, 13-sealing ring D, 14-hole A, 15-hole B, 16-hole C, 17-triangle open mouth groove.
The specific embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing:
Shown in accompanying drawing 1, this is used for the pitching instrument that adding pressure type is cored, and comprises body 9, fixed body 8 on the sidewall of described body 9, porose A14, hole B15 and hole C16 on the body 8, and the end of its mesopore B15 communicates with body 9, the other end communicates with hole C16, and hole C16 communicates with hole A14; And be equipped with steel ball 10 and plunger 4 in the A14 of hole from bottom to up successively, the top of the hole A14 plug 1 that is threaded, the hole of plug 1 is built-in with thin bar 2, and the other end of thin bar 2 is threaded with plunger 4, spring 3 on the thin bar 2 withstands on the end face of plunger 4, is equipped with sealing ring F11 between plug 1 and hole A14; Hole C16 upper end screw thread connecting filament thick stick ectosome 6, the shoulder of leading screw ectosome 6 is stuck on the upper surface of hole C16, and 8 of leading screw ectosome 6 and bodies are equipped with sealing ring D13, leading screw ectosome 6 endoporus cooperate leading screw 5, and and 5 of leading screws be equipped with sealing ring E12, the lower end of leading screw 5 connects loose piece 7, and loose piece 7 can move up and down in the C16 of hole under the drive of leading screw 5; One triangle open mouth groove 17 is arranged on the sidewall of loose piece 7, and the angle of inclination of the angle of inclination of the following groove face of triangle open mouth groove 17 and hole B15 is all α, as shown in Figure 2, so that steel ball 10 falls into hole B15 smoothly; At least can put a steel ball 10 in the triangle open mouth groove 17, when loose piece 7 moved up, triangle open mouth groove 17 was corresponding with hole A14, and when loose piece 7 moved down, triangle open mouth groove 17 was corresponding with hole B15.
When using the pitching instrument that this adding pressure type cores, the two ends of body 9 are connected with mud line, several steel balls 10 are put into hole A14, with thin bar 2, plunger 4, spring 3 and after plug 1 is connected, plug 1 is threaded onto the top of hole A14, and this moment, spring 3 was compacted, and plunger 4 has thrust to steel ball 10 under the effect of spring 3, so that after the steel ball of front 10 drops in the wells, it is descending to promote next steel ball 10; Rotating threaded shaft 5 drives loose piece 7 and moves in the C16 of hole, makes the triangle open mouth groove 17 on the loose piece 7 corresponding with the bottom of hole A14, and triangle open mouth groove 17 is built-in with a steel ball 10.When needing pitching after the end of coring, it is descending that rotating threaded shaft 5 drives loose piece 7, it is descending that then loose piece 7 drives the steel ball 10 that enters triangle open mouth groove 17, when triangle open mouth groove 17 and hole B15 to after last, steel ball 10 falls into the passage of body 9 by hole B15, and falls in the mud line and poured in the coring tool by mud; Rotating threaded shaft 5 drive loose pieces 7 are up again, triangle open mouth groove 17 on the loose piece 7 is with after hole A14 is corresponding, then next steel ball enters in the triangle open mouth groove 17 of loose piece 7 under the thrust of spring 3 and plunger 4, and then rotating threaded shaft 5 makes and is about to steel ball 10 under it and sends in the mud line.So repeatedly for several times can be under the situation that only needs a mud line of installation and removal several steel balls be dropped in the coring tool in wells, reduced the probability that caused danger in the down-hole because of frequent termination of pumping, simple to operate, labour intensity is low.

Claims (3)

1. one kind is used for the pitching instrument that adding pressure type is cored, and comprises body (9), it is characterized in that: fixed body (8) on the sidewall of body (9) has three the hole A (14) that communicate, hole B (15) and hole C (16) on the body (8); Its mesopore B (15) communicates with body (9) again; Be equipped with steel ball (10) and plunger (4) in the hole A (14) from bottom to up successively, the top of hole A (14) connects plug (1), and the hole of plug (1) is built-in with thin bar (2) and is connected with plunger (4), and the spring (3) on the thin bar (2) withstands on the end face of plunger (4); The upper end of hole C (16) connects leading screw ectosome (6), leading screw ectosome (6) endoporus cooperates leading screw (5), the lower end of leading screw (5) connects loose piece moving up and down (7), triangle open mouth groove (17) is arranged on the loose piece (7), the angle of inclination of the downside of triangle open mouth groove (17) is identical with the angle of inclination of hole B (15), can put a steel ball (10) in the triangle open mouth groove (17) at least.
2. a kind of pitching instrument that adding pressure type is cored that is used for according to claim 1, it is characterized in that: the shoulder of leading screw ectosome (6) is stuck on the upper surface of hole C (16), and and body (8) and leading screw (5) between be equipped with sealing ring D (13) and sealing ring E (12).
3. a kind of pitching instrument that adding pressure type is cored that is used for according to claim 1 is characterized in that: be equipped with sealing ring F (11) between plug (1) and hole A (14).
CN2010201516202U 2010-04-07 2010-04-07 Ball pitching tool for pressurized coring Expired - Fee Related CN201687423U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010201516202U CN201687423U (en) 2010-04-07 2010-04-07 Ball pitching tool for pressurized coring

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010201516202U CN201687423U (en) 2010-04-07 2010-04-07 Ball pitching tool for pressurized coring

Publications (1)

Publication Number Publication Date
CN201687423U true CN201687423U (en) 2010-12-29

Family

ID=43375707

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010201516202U Expired - Fee Related CN201687423U (en) 2010-04-07 2010-04-07 Ball pitching tool for pressurized coring

Country Status (1)

Country Link
CN (1) CN201687423U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104790932A (en) * 2015-04-21 2015-07-22 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 Continuous layered fracturing ball injector and control method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104790932A (en) * 2015-04-21 2015-07-22 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 Continuous layered fracturing ball injector and control method thereof
CN104790932B (en) * 2015-04-21 2017-07-25 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 A kind of continuous stratification pressure break ball injector and its control method

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20101229

Termination date: 20170407