CN201650255U - Remote-control cock type steel ball injector - Google Patents

Remote-control cock type steel ball injector Download PDF

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Publication number
CN201650255U
CN201650255U CN2010201703730U CN201020170373U CN201650255U CN 201650255 U CN201650255 U CN 201650255U CN 2010201703730 U CN2010201703730 U CN 2010201703730U CN 201020170373 U CN201020170373 U CN 201020170373U CN 201650255 U CN201650255 U CN 201650255U
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China
Prior art keywords
steel ball
cock
actuator
high pressure
pressure
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Expired - Fee Related
Application number
CN2010201703730U
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Chinese (zh)
Inventor
孙虎
邓继学
刘培润
白珠叶
曹欣
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.)
Changqing Downhole Operation Co of CNPC Chuanqing Drilling Engineering Co Ltd
Original Assignee
Changqing Downhole Operation Co of CNPC Chuanqing Drilling Engineering Co Ltd
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Priority to CN2010201703730U priority Critical patent/CN201650255U/en
Application granted granted Critical
Publication of CN201650255U publication Critical patent/CN201650255U/en
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Expired - Fee Related legal-status Critical Current

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Abstract

The utility model belongs to the oil and gas industry, particularly the supporting technology of immobile string separate layer fracturing techniques in underground technical operation, and relates to a remote-control cock type steel ball injector which is characterized in that at least one tee connected to a high-pressure pipeline in fracturing construction is comprised; two straight ends of the tee lead the high-pressure pipeline to be communicated and a high-pressure cock is connected to the vertical end of the tee; steel balls with different diameters are arranged in the high-pressure cock; an actuator is connected with the high-pressure cock and is electrically connected with a controller; the steel balls, 1 to 3 in number, are distributed from small to large; the high-pressure cock adopts a high-pressure cock with the specification ranging from 2 econd to 3 second; the actuator adopts a hydraulic actuator or an electric actuator; and the maximum torque of the actuator can reach 500Nm. The remote-control cock type steel ball injector has the advantages of good safety, time conservation and good manufacturability.

Description

The remote control cock type steel ball delivery device
Technical field
The utility model belongs to oil and gas industry, the supporting technology of fixed tubular column separate stratum fracfturing technology in the technical operation of down-hole particularly, and the remote control cock type steel ball delivery device of definitely saying so is used to throw safely and efficiently steel ball and carries out separate stratum fracfturing.
Background technology
In the fixed tubular column separate stratum fracfturing construction, termination of pumping to throw steel ball, the cover that skids carries out separate stratum fracfturing, and existing mode with the throwing steel ball is after the first floor pressure break is finished, and utilizes valve on the fracture well head to drop into.At first will be under the high pressure of 30-40MPa, total valve on the well head is shut, pressure with well head top bleeds off again, the pressing crack construction pipeline is disassembled, again steel ball is dropped into the top of well head, shut the valve on well head top then, open total valve, steel ball is dropped in the well, connect high pressure line again and construct.Do like this and have following problem:
(1) under high pressure conditions, controlled valve is relatively more dangerous, and also very effort is bothersome, and two valves of switch need 15 minutes approximately, in case valve goes wrong, will injure site operation personnel and equipment;
(2) the pressure break high pressure line of a well head of dismounting also is the thing that wastes time and energy very much, and workload is big, and also very effort is bothersome, needs 15 minutes approximately;
(3) in the time of in the middle of steel ball places two valves of well head, because of the borehole pressure height, carried out emptying between two valves, when head valve is opened, liquid can be flushed to steel ball the bypath valve place of well head in the well when two valve spaces pour, after well head pressure is recovered, tend to the situation that the steel ball throwing is not gone down occur, cause the separate stratum fracfturing failure.
Summary of the invention
The purpose of this utility model provide a kind of safety good, save time, the remote control cock type steel ball delivery device of good manufacturability.
The purpose of this utility model is achieved in that the remote control cock type steel ball delivery device, it is characterized in that: comprise threeway at least, be connected on the high pressure line of pressing crack construction; Threeway two straight-through ends connect high pressure line; A high pressure cock is connected the vertical end of threeway, and the steel ball of different-diameter is arranged in the high pressure cock; Actuator is connected with the high pressure cock, and actuator is electrically connected with controller.
Described steel ball is to arrange from small to large, and the steel ball number is at 1-3.
Described high pressure cock is the high pressure cock of 2 " 3 ".
Described actuator is surge actuator or YE, and described actuator peak torque can reach 500Nm.
The diameter of described maximum steel ball is 70mm.
The course of work of the present utility model and advantage are: because steel ball is placed in this cock, when fixed tubular column separate stratum fracfturing construction, after first lamination is intact, when needing the throwing steel ball to carry out second layer pressure break, as long as certain angle is opened in cock, make steel ball free fall into high pressure line, high pressure line high speed flowing liquid just can be brought steel ball in the well into, reaches the requirement of separate stratum fracfturing; Can drop into the steel ball (2-3 the steel ball of once can packing into) of different-diameter respectively according to the aperture and the pairing diameter of steel ball of cock, reach the requirement that dividing potential drop is skidded and overlapped; Can also can not termination of pumping throw steel ball by termination of pumping throwing steel ball in the pitching process, reach the requirement of accurate remote control control and safe and efficient construction.
Description of drawings
The utility model is described in further detail below in conjunction with the embodiment accompanying drawing:
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model course of work key diagram;
Fig. 3 is a control cabinet power supply knob schematic diagram.
Among the figure: 1, threeway; 2, high pressure cock; 3, plug; 4, actuator; 5, controller; 6, high pressure line; 7, steel ball.
The specific embodiment
As depicted in figs. 1 and 2, on the high pressure line 6 of pressing crack construction, a threeway 1 is installed, the high pressure cock 2 of one 2 " or 3 " is installed in threeway 1 again, the steel ball 7 of different-diameter is placed in this high pressure cock 2, high pressure cock 2 upper ends fixedly 3, one actuators 4 of plug are connected with high pressure cock 2, are used to control the opening degree of high pressure cock; One controller 5 is electrically connected with actuator 4, is used for the command signal to actuator 4 inputs one opening degree, makes the opening degree of actuator 4 corresponding control high pressure cocks 2 consistent with steel ball 7 diameters of input.Steel ball 7 is to arrange to big with little, and the steel ball number is at 1-3.The diameter of maximum steel ball 7 is 70mm.
When the fixed tubular column separate stratum fracfturing is constructed, after first lamination is intact, when needing the throwing steel ball to carry out second layer pressure break, as long as by the controller input parameter, actuator is opened to cock the angle of selecting parameter according to parameter, make steel ball free fall into high pressure line, high pressure line high speed flowing liquid just can be brought steel ball in the well into, reaches the requirement of separate stratum fracfturing; 2-3 the steel ball of once can packing into can drop into the steel ball 7 of different-diameter respectively according to the aperture and the pairing diameter of steel ball of cock, reaches the skid requirement of cover of dividing potential drop; Can also can not termination of pumping throw steel ball by termination of pumping throwing steel ball in the pitching process.
As depicted in figs. 1 and 2, high pressure cock 2 is high pressure cocks of 2 " 3 ", and the spool of high pressure cock 2 can carry out remote control, and steel ball 7 is in high pressure cock 2, and steel ball 7 is to the big 2-3 of arrangement in high pressure cock 2 with little.Utilize the open degree of spool corresponding, reach and to drop into 2-3 different-diameter steel ball at every turn with steel ball size.Following table is the interior operating pressure of cock and the relation table of actuator operation torque:
Valve pocket internal pressure (Mpa) 0 15 28 40 60 70
Open and close moment (Nm) 15 40 55 90 110 120
Actuator 4 adopts surge actuator or YE, and its peak torque can reach 500Nm.The controller 5 of control actuator 4 comprises a keyboard, display, control module and RCI, import the steel ball size of the input of needs by keyboard, be presented on the display, through confirm errorless after, start acknowledgement key, control module sends signal by RCI to actuator, is opened the opening degree of selected steel ball size by the cock of actuator control high pressure and throws in steel ball.
Minimumly in the present embodiment can throw 1-3 steel ball, be in order to guarantee fracturing without pulling string technology pressure break 2-4 layer continuously.
High pressure cock 2 in the present embodiment is the high-pressure fluid controllers in the pressure break high pressure pipe joint, it mainly acts on is under the state of high-pressure fluid, closing or open the fluid passage of high pressure line, is the main element of steel ball delivery device, also is one of ripe high-pressure fluid controlling parts.Actuator is the open degree of control cock valve accurately, presses the size of steel ball size, comes the open degree of control cock.Highpressure Tee 1 is one of main fluid control member of pressure break high pressure pipe joint, is it to be scurried be connected on the pressure break high pressure line in main effect, and the cock type steel ball delivery device is communicated with the high voltage charge line, steel ball can be thrown in the high pressure line.One end of cock 2 links to each other with Highpressure Tee, and the other end is that a plug 3 is with its shutoff, with high pressure linker of pressure break pipeline formation.
The utility model middle controller 5 has two kinds of mode of operations, by the determining positions of power switch:
1. test model
As shown in figures 1 and 3, the method of test cock valve opening: earlier the power switch knob is screwed into operating position (clockwise direction rotation), the test switch knob be screwed into the return position → by in controller 5 keyboards ▲ key or ▼ key reach by the parameter value command value and tentatively want the value set, → the test switch knob is screwed into duty position (side's rotation clockwise), → plug valve just under the driving of actuator, is opened to the position of setting gradually.If steel ball, illustrates that the command value (parameter) of giving setting earlier is excessive in advance by plug valve, the command value that shows in the time of therefore will in time writing down steel ball by plug valve; If steel ball illustrate that by plug valve the aperture of plug valve is not enough, can pin this moment in controller 5 keyboards ▲ key, by plug valve, write down the parameter value of demonstration this moment up to steel ball.For construction safety, the top-operation step must repeat to do one twice, and is accurate to guarantee command value (parameter).With the parameter value that top method obtains, just become when the work shape and set
Figure 511685DEST_PATH_IMAGE001
Value value of order of key (knob).Affirmation uses the same method
Figure 84617DEST_PATH_IMAGE002
Key,
Figure 395513DEST_PATH_IMAGE003
The command value of key.
Being worth ben is: also can open smoothly under the high pressure operating mode in order to guarantee plug valve, the pressure reduction up and down of balanced plug valve is necessary selection. Give the aperture of staying for the last downforce of balanced plug valve exactly.Its aperture should be less than the aperture of minimum ball by plug valve.
After the command value in four sites is determined.To test knob and be screwed into the return position, next step instruction that just can carry out each site is provided with.
2. mode of operation
The instruction of (1) four site switch is provided with coefficient
Control cabinet can be provided with and store four instructions.After instruction was sent, actuator just began to move and accurately be parked in the position of giving elder generation's setting.Four instructions respectively by
Figure 542777DEST_PATH_IMAGE004
,
Figure 21032DEST_PATH_IMAGE001
,
Figure 819224DEST_PATH_IMAGE002
, Four rotary switch controls.Four instructions are corresponding one by one respectively with four knobs.Must write the coefficient that is provided with of this knob before the modify instruction earlier.
Figure 280478DEST_PATH_IMAGE004
F2.30
Figure 805000DEST_PATH_IMAGE001
F2.31
F2.32
Figure 234025DEST_PATH_IMAGE003
F2.33
(2) modify instruction
Earlier will
Figure 413202DEST_PATH_IMAGE005
Knob is moved the operating position to,
Figure 374205DEST_PATH_IMAGE004
,
Figure 22355DEST_PATH_IMAGE001
, ,
Figure 127900DEST_PATH_IMAGE003
Knob is moved the return position to, begins following operating procedure then:
Figure 129671DEST_PATH_IMAGE007
(numerical value of demonstration is the instruction numerical value of setting last time) → strengthen or reduce to instruct numerical value by ▲ key or ▼ key, up to reaching numerical value (the omnidistance percentage number of instruction numerical value actuator action just that needs, for example: want to allow actuator move 15% of total travel, command value just is set at
Figure 739644DEST_PATH_IMAGE008
).Press once more at last Key.Revise (perhaps confirming)
Figure 196219DEST_PATH_IMAGE004
The work of knob instruction is just accused and is finished.Being shown as of this moment
Figure 84541DEST_PATH_IMAGE010
Press again Key twice just can carry out The modification of knob instruction numerical value.Use the same method, use
Figure 855554DEST_PATH_IMAGE012
,
Figure 480439DEST_PATH_IMAGE013
Coefficient modifying is set , The command value of knob.
(3) send instruction
After the instruction modification work in each site is finished, just can move one by one as required
Figure 955917DEST_PATH_IMAGE004
,
Figure 536940DEST_PATH_IMAGE001
,
Figure 292406DEST_PATH_IMAGE002
,
Figure 760428DEST_PATH_IMAGE003
Knob sends instruction to the operating position, the position that allows actuator move to set.Be noted that: after the instruction of certain knob executes, this knob must be moved back to the return position, next knob just can send instruction.

Claims (5)

1. the remote control cock type steel ball delivery device is characterized in that: comprise threeway at least, be connected on the high pressure line of pressing crack construction; Threeway two straight-through ends connect high pressure line; A high pressure cock is connected the vertical end of threeway, and the steel ball of different-diameter is arranged in the high pressure cock; Actuator is connected with the high pressure cock, and actuator is electrically connected with controller.
2. remote control cock type steel ball delivery device according to claim 1 is characterized in that: described steel ball is to arrange to big with little, and the steel ball number is at 1-3.
3. remote control cock type steel ball delivery device according to claim 1 is characterized in that: described high pressure cock is the high pressure cock of 2 " 3 ".
4. remote control cock type steel ball delivery device according to claim 1 is characterized in that: described actuator is surge actuator or YE, and described actuator peak torque is 500Nm.
5. remote control cock type steel ball delivery device according to claim 1 is characterized in that: the maximum gauge of described steel ball is 70mm.
CN2010201703730U 2010-04-26 2010-04-26 Remote-control cock type steel ball injector Expired - Fee Related CN201650255U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010201703730U CN201650255U (en) 2010-04-26 2010-04-26 Remote-control cock type steel ball injector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010201703730U CN201650255U (en) 2010-04-26 2010-04-26 Remote-control cock type steel ball injector

Publications (1)

Publication Number Publication Date
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Country Status (1)

Country Link
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102383775A (en) * 2011-07-21 2012-03-21 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 Double-cock ball throwing device and ball throwing method
CN103498657A (en) * 2013-10-12 2014-01-08 兰州城临石油钻采设备有限公司 Full-series large-capacity automatic ball installing and digital control staged fracturing ball injector
US8636055B2 (en) 2011-05-05 2014-01-28 Oil States Energy Services, L.L.C. Controlled aperture ball drop
US9739111B2 (en) 2011-05-05 2017-08-22 Oil States Energy Services, L.L.C. Controlled aperture ball drop
CN108468521A (en) * 2018-04-27 2018-08-31 中国石油天然气集团有限公司 Continuous pipe pitching auxiliary tool, pitching mechanism and pitching method

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8636055B2 (en) 2011-05-05 2014-01-28 Oil States Energy Services, L.L.C. Controlled aperture ball drop
US8839851B2 (en) 2011-05-05 2014-09-23 Oil States Energy Services, L.L.C. Controlled apperture ball drop
US9739111B2 (en) 2011-05-05 2017-08-22 Oil States Energy Services, L.L.C. Controlled aperture ball drop
US9869151B2 (en) 2011-05-05 2018-01-16 Oil States Energy Services, L.L.C. Controlled aperture ball drop
CN102383775A (en) * 2011-07-21 2012-03-21 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 Double-cock ball throwing device and ball throwing method
CN102383775B (en) * 2011-07-21 2014-04-30 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 Double-cock ball throwing device and ball throwing method
CN103498657A (en) * 2013-10-12 2014-01-08 兰州城临石油钻采设备有限公司 Full-series large-capacity automatic ball installing and digital control staged fracturing ball injector
CN103498657B (en) * 2013-10-12 2015-12-02 兰州城临石油钻采设备有限公司 A kind of complete series Large Copacity fills the digital control staged fracturing ball injector of ball automatically
CN108468521A (en) * 2018-04-27 2018-08-31 中国石油天然气集团有限公司 Continuous pipe pitching auxiliary tool, pitching mechanism and pitching method

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

Granted publication date: 20101124

Termination date: 20150426

EXPY Termination of patent right or utility model