CN206429233U - A kind of open hole packer fracturing string of use anti-sticking ball fracturing valve - Google Patents

A kind of open hole packer fracturing string of use anti-sticking ball fracturing valve Download PDF

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Publication number
CN206429233U
CN206429233U CN201621286209.XU CN201621286209U CN206429233U CN 206429233 U CN206429233 U CN 206429233U CN 201621286209 U CN201621286209 U CN 201621286209U CN 206429233 U CN206429233 U CN 206429233U
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CN
China
Prior art keywords
sliding sleeve
fracturing
valve
ring
lower contact
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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
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CN201621286209.XU
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Chinese (zh)
Inventor
费二战
彭刚
Original Assignee
王新岗
韩昭海
胡克剑
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Priority to CN201621286209.XU priority Critical patent/CN206429233U/en
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Publication of CN206429233U publication Critical patent/CN206429233U/en
Expired - Fee Related legal-status Critical Current
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Abstract

The utility model is related to a kind of open hole packer fracturing string of use anti-sticking ball fracturing valve, including oil pipe, hydraulic anchor, circulating valve, sealing intubation, tie-back sleeve of giving up, hanging packer, multiple fracturing valves, multiple open hole packers, pressure difference sliding sleeve, ball seat, float collar and guide shoe;Fracturing valve is anti-sticking ball fracturing valve, including:Top connection, anti-rotation pin, sealing ring, back-up ring, inner sliding sleeve, sliding sleeve body, outer sliding sleeve, shear pin, jump ring and lower contact;Top connection and lower contact are connected to the two ends of sliding sleeve body by respective external screw thread respectively;There is radial direction slotted eye on barrel in the middle part of sliding sleeve body, there is shear pin above slotted eye, outer sliding sleeve is connected in sliding sleeve body by shear pin, and joint face is provided with sealing ring, inner sliding sleeve is arranged on outer sliding sleeve, and the end of one end of top connection is provided with back-up ring in inner sliding sleeve;Outer sliding sleeve is provided with the first groove on one end outer wall of lower contact, and jump ring is in the first groove.It prevents card ball impact production capacity after pressure.

Description

A kind of open hole packer fracturing string of use anti-sticking ball fracturing valve
Technical field
The utility model is related to a kind of open hole packer pressure break downhole tool, particularly a kind of to use anti-sticking ball fracturing valve Open hole packer fracturing string.Belong to water of oil-gas field horizontal well fracturing technique field.
Background technology
Open hole packer staged fracturing technique has segmentation reliable, and construction friction is low, and high flow rate operation, horizontal segment can be achieved Setting of casing, comprehensive shaft building low cost and other advantages, do not apply relatively broad in oil gas field.The usual fracturing string is using ascending The unlatching for throwing various sizes of ball sealer to complete sliding sleeves at different levels and the isolation for having transformed section.It is at different levels due in fracturing process The sand-passing amount of sliding sleeve is the superposition of the total sand-passing amount of men working ahead section, certainly will cause the abrasion of sliding sleeve, with scope of construction item gradually Increase, sliding sleeve abrasion aggravates, and often in work progress, ball sealer occurs and does not fall the phenomenon of sliding sleeve, or card ball occur and show Liquid outlet as blocking previous stages, causes the row of returning after pressure difficult, on the other hand due to being limited by sliding sleeve size, existing tubing string Later stage can not carry out the operations such as horizontal segment sand washing, gas lift liquid drainage, and a kind of bore hole envelope of use anti-sticking ball fracturing valve has been invented for this Every device fracturing string.
Utility model content
The purpose of this utility model is:A kind of open hole packer fracturing string of use anti-sticking ball fracturing valve is provided, to solve Card ball impact production capacity after certainly pressing, the later stage can not carry out the problem of the operations such as sand washing.
The technical solution adopted in the utility model is:
A kind of open hole packer fracturing string of use anti-sticking ball fracturing valve, it includes oil pipe, hydraulic anchor, circulating valve, close Seal intubation, tie-back sleeve of giving up, hanging packer, multiple fracturing valves, multiple open hole packers, pressure difference sliding sleeve, ball seat, float collar and draw Footwear;It is characterized in that:Described fracturing valve is anti-sticking ball fracturing valve, and anti-sticking ball fracturing valve at least includes:Top connection, anti-rotation pin, Sealing ring, back-up ring, inner sliding sleeve, sliding sleeve body, outer sliding sleeve, shear pin, jump ring and lower contact;Described top connection and lower contact The two ends of sliding sleeve body are connected to by respective external screw thread respectively;Barrel is provided with radial direction slotted eye, slotted eye in the middle part of sliding sleeve body Top is provided with shear pin, and described outer sliding sleeve is connected in sliding sleeve body by shear pin, and joint face two ends are provided with sealing Circle, described inner sliding sleeve is arranged on outer sliding sleeve, and the end of one end of top connection is provided with back-up ring in inner sliding sleeve;Outer sliding sleeve The first groove is provided with one end outer wall of lower contact, jump ring is arranged in the first groove.
Described top connection and lower contact is fixed with the part that sliding sleeve body is connected by anti-rotation pin.
Described sliding sleeve body is provided with the second groove on one end inwall of lower contact.
The interior latus rectum of every grade of described outer sliding sleeve is consistent;Since the inner sliding sleeve of the second level, the interior latus rectum of every grade of inner sliding sleeve It is all higher than the interior latus rectum of its upper level inner sliding sleeve.
The inner sliding sleeve is soluble material.
The beneficial effects of the utility model:
Firstth, fracturing valve of the present utility model is used after anti-sticking ball fracturing valve pressure, can be made using anti-sticking ball fracturing valve Open hole packer fracturing string keeps big orifice to carry out closing layer discharge opeing, production;The inner sliding sleeve of anti-sticking ball fracturing valve is using solvable interior Sliding sleeve can avoid card ball phenomenon from occurring, and eliminate the influence to reservoir productivity.
Secondth, the utility model is after after the dissolving of solvable inner sliding sleeve, and outer sliding sleeve latus rectums at different levels are consistent, and downhole pipeline is that can be achieved Full-bore, beneficial to later stage operation.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the open hole packer fracturing string of use anti-sticking ball fracturing valve of the utility model;
Fig. 2 is the structural representation of anti-sticking ball fracturing valve;
In figure, 1, top connection;2nd, anti-rotation pin;3rd, sealing ring;4th, back-up ring;5th, inner sliding sleeve;6th, sliding sleeve body;7th, outer cunning Set;8th, shear pin;9th, jump ring;10th, lower contact;11st, oil pipe;12nd, hydraulic anchor;13rd, circulating valve;14th, sealing intubation;15th, lose Hand tie-back sleeve;16th, hanging packer;17th, fracturing valve;18th, open hole packer;19th, pressure difference sliding sleeve;20th, ball seat;21st, float collar; 22nd, guide shoe;23rd, the first groove;24th, the second groove.
Embodiment
Embodiment 1
A kind of open hole packer fracturing string of use anti-sticking ball fracturing valve, it includes oil pipe 11, hydraulic anchor 12, circulating valve 13rd, sealing intubation 14, tie-back sleeve 15 of giving up, hanging packer 16, multiple fracturing valves 17, multiple open hole packers 18, pressure difference are slided Set 19, ball seat 20, float collar 21 and guide shoe 22;Described fracturing valve 17 is anti-sticking ball fracturing valve, and anti-sticking ball fracturing valve at least includes: Top connection 1, anti-rotation pin 2, sealing ring 3, back-up ring 4, inner sliding sleeve 5, sliding sleeve body 6, outer sliding sleeve 7, shear pin 8, jump ring 9 and under Joint 10;Described top connection 1 and lower contact 10 are connected to the two ends of sliding sleeve body 6 by respective external screw thread respectively;Sliding sleeve The middle part barrel of body 6, which is provided with above radial direction slotted eye, slotted eye, is provided with shear pin 8, and described outer sliding sleeve 7 is connected by shear pin 8 It is connected in sliding sleeve body 6, and joint face two ends are provided with sealing ring 3, described inner sliding sleeve 5 is arranged on outer sliding sleeve 7, in inner sliding sleeve 5 are provided with back-up ring 4 close to the end of one end of top connection 1;Outer sliding sleeve 7 is provided with first on one end outer wall of lower contact 10 Groove 23, jump ring 9 is arranged in the first groove 23.
Embodiment 2
As shown in figure 1, on a kind of open hole packer fracturing string of use anti-sticking ball fracturing valve, the tubing string from top to bottom according to Secondary to be connected with oil pipe 11, the bottom of oil pipe 11 is connected with hydraulic anchor 12, and the bottom of hydraulic anchor 12 is connected with circulating valve 13, circulating valve 13 bottom is connected with sealing intubation 14, and 14 bottoms of sealing intubation are connected with tie-back sleeve 15 of giving up, the bottom for tie-back sleeve 15 of giving up Hanging packer 16 is connected with, the bottom of hanging packer 16 is connected with fracturing valve 17 and open hole packer 18, multiple fracturing valves 17 Be serially connected with open hole packer 18, and each fracturing valve 17 and open hole packer 18 are arranged at intervals, between it is (short by oil pipe Section) connect, tubing length is determined according to the depth of construction Oil/gas Well and the depth of payzone, bottom fracturing valve 17 and bore hole packing The bottom of device 18 is connected with pressure difference sliding sleeve 19, and the bottom of pressure difference sliding sleeve 19 is connected with ball seat 20, and the bottom of ball seat 20 is connected with float collar 21, the bottom of float collar 21 is connected with guide shoe 22.
As shown in Fig. 2 described fracturing valve 17 is anti-sticking ball fracturing valve, it at least includes:Top connection 1, anti-rotation pin 2, Sealing ring 3, back-up ring 4, inner sliding sleeve 5, sliding sleeve body 6, outer sliding sleeve 7, shear pin 8, jump ring 9 and lower contact 10;Connect on described First 1 and lower contact 10 two ends of sliding sleeve body 6 are connected to by respective external screw thread respectively;Set on the middle part barrel of sliding sleeve body 6 Have and shear pin 8 is provided with above radial direction slotted eye, slotted eye, described outer sliding sleeve 7 is connected in sliding sleeve body 6 by shear pin 8, and Joint face two ends are provided with sealing ring 3, and described inner sliding sleeve 5 is arranged on outer sliding sleeve 7, in inner sliding sleeve 5 close to one end of top connection 1 End be provided with back-up ring 4, prevent it from moving by back-up ring 4;Outer sliding sleeve 7 is provided with one end outer wall of lower contact 10 One groove 23, jump ring 9 is arranged in the first groove 23.Described sliding sleeve body 6 is set on one end inwall of lower contact 10 There is the second groove 24.Jump ring 9 is displaced downwardly to the second groove of bottom of sliding sleeve body 6 after outer sliding sleeve 7 moves down opening, while expanding card In the second groove, the whole position of outer sliding sleeve 7 is locked.
The part that described top connection 1 and lower contact 10 is connected with sliding sleeve body 6 is fixed by anti-rotation pin 2;By anti- Nail 2 of shipping and reselling on another market prevents it from rotating.
The inner sliding sleeve 5 is soluble material.The material is to add rare earth element and by heat treatment by magnesium, aluminum, Refining has high activity, the sacrificial anode material of uniform dissolution.The soluble material at 60 DEG C, using water as medium under, according to applying Length between man-hour, by adjusting material mixture ratio, to adjust dissolution time (including just molten time and be completely dissolved the time).Interior cunning After the dissolving of set 5, the latus rectums of outer sliding sleeve 7 at different levels are consistent, and latus rectum is larger, and unimpeded passage is provided with later stage operation to close to adopt.From Second level inner sliding sleeve starts, and the interior latus rectum of every grade of inner sliding sleeve 5 is all higher than the interior latus rectum of its upper level inner sliding sleeve.
Operation principle:Ball sealer is thrown in well head, pumping ball sealer is sitting on inner sliding sleeve 5, after pump pressure is increased to certain value Shear pin 8 is cut, promotes outer sliding sleeve 7 is overall to move down, the pressure break port exposed on sliding sleeve body 6 carries out pressure break to this section, when Outer sliding sleeve 7 moves down jump ring 9 after opening and is displaced downwardly to the second groove of bottom of sliding sleeve body 6, while expansion is stuck in the second groove, it is right The whole position of outer sliding sleeve 7 is locked.Another ball of input after operation is complete, implements to transform to each layer above successively.
What the utility model was realized in:
(1) drifting tubing string drifting under
Multiple drifting acts drifting drilling tool to net horizontal section bottom.
(2) tripping in of pressing crack construction tubing string.It will be arrived using drilling rod under the latus rectum multistage fracturing technology tubing string such as open-hole horizontal well Design attitude, mud in pit shaft is replaced out.After the completion of wait open hole packer is set, pitching sets hanging packer, then pitching Give up the latus rectum multistage fracturing technology tubing string such as open-hole horizontal well, rise and the give up drilling rod of tie-back sleeve more than 15, then tripping in pressing crack construction Tubing string, the tubing string is mainly made up of oil pipe 11, hydraulic anchor 12, circulating valve 13, sealing intubation 14, and the insertion of sealing intubation 14 is given up In tie-back sleeve 15, the tripping in and docking of pressing crack construction tubing string are completed.
(3) staged fracturing is constructed
A, pressure break first paragraph
First paragraph pressure break:Oil pipe is pressurizeed first, opens differential sliding sleeve 19, and waterpower pressure is implemented to first paragraph by oil pipe Split, transform first paragraph.
B, pressure break second segment
After the completion of first paragraph pressure break, from the corresponding ball sealer of oil pipe input first order inner sliding sleeve, pumping ball sealer is sitting in the On one-level inner sliding sleeve 5, shear pin 8 is cut after pump pressure is increased to certain value, promotes outer sliding sleeve 7 is overall to move down, exposes sliding sleeve Pressure break port on body 6 carries out the pressure break of second segment to this section, and jump ring 9 is displaced downwardly to sliding sleeve sheet after outer sliding sleeve 7 moves down opening The second groove of bottom of body 6, while expansion is stuck in the second groove, is locked to the whole position of outer sliding sleeve 7.
C, in the same way from the corresponding ball sealer of the ascending input of well head, you can complete the pressure break of remaining section.
(4) when pressure break finishes open flow, ball sealer returns out ground, after solvable inner sliding sleeve 5 dissolves, and tubing string can just keep big logical Footpath carries out closing layer discharge opeing, production.
The part and structure that the present embodiment is not described in detail belong to the well-known components and common structure or conventional hand of the industry Section, is not described one by one here.

Claims (4)

1. a kind of open hole packer fracturing string of use anti-sticking ball fracturing valve, it includes oil pipe (11), hydraulic anchor (12), circulation Valve (13), sealing intubation (14), tie-back sleeve of giving up (15), hanging packer (16), multiple fracturing valves (17), the packing of multiple bore holes Device (18), pressure difference sliding sleeve (19), ball seat (20), float collar (21) and guide shoe (22);It is characterized in that:Described fracturing valve (17) is anti- Card ball fracturing valve, anti-sticking ball fracturing valve at least includes:Top connection (1), anti-rotation pin (2), sealing ring (3), back-up ring (4), interior cunning Cover (5), sliding sleeve body (6), outer sliding sleeve (7), shear pin (8), jump ring (9) and lower contact (10);Described top connection (1) and Lower contact (10) is connected to the two ends of sliding sleeve body (6) by respective external screw thread respectively;Set in the middle part of sliding sleeve body (6) on barrel Have and shear pin (8) is provided with above radial direction slotted eye, slotted eye, described outer sliding sleeve (7) is connected to sliding sleeve body by shear pin (8) (6) in, and joint face two ends are provided with sealing ring (3), and described inner sliding sleeve (5) is arranged on outer sliding sleeve (7), in inner sliding sleeve (5) End close to one end of top connection (1) is provided with back-up ring (4);Outer sliding sleeve (7) is set on one end outer wall of lower contact (10) The first groove (23) is equipped with, jump ring (9) is arranged in the first groove (23).
2. a kind of open hole packer fracturing string of use anti-sticking ball fracturing valve according to claim 1, it is characterized in that:Institute The part that the top connection (1) and lower contact (10) stated are connected with sliding sleeve body (6) is fixed by anti-rotation pin (2).
3. a kind of open hole packer fracturing string of use anti-sticking ball fracturing valve according to claim 1, it is characterized in that:Institute The sliding sleeve body (6) stated is provided with the second groove (24) on one end inwall of lower contact (10).
4. a kind of open hole packer fracturing string of use anti-sticking ball fracturing valve according to claim 1, it is characterized in that:Institute Inner sliding sleeve (5) is stated for soluble material.
CN201621286209.XU 2016-11-28 2016-11-28 A kind of open hole packer fracturing string of use anti-sticking ball fracturing valve Expired - Fee Related CN206429233U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621286209.XU CN206429233U (en) 2016-11-28 2016-11-28 A kind of open hole packer fracturing string of use anti-sticking ball fracturing valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621286209.XU CN206429233U (en) 2016-11-28 2016-11-28 A kind of open hole packer fracturing string of use anti-sticking ball fracturing valve

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108625841A (en) * 2018-03-16 2018-10-09 中国石油天然气股份有限公司 A kind of refracturing method that the sealing of horizontal well annular space is made with pitching sliding sleeve connection
CN109812245A (en) * 2017-11-21 2019-05-28 中国石油化工股份有限公司 A kind of fracturing sliding bush
CN112324416A (en) * 2020-11-05 2021-02-05 中国石油天然气股份有限公司 Multi-packer process pipe column and method for selective and repeated reconstruction of old well
CN112502682A (en) * 2020-11-05 2021-03-16 中国石油天然气股份有限公司 Production method of preset small-diameter pipe for side drilling well and small-hole well

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109812245A (en) * 2017-11-21 2019-05-28 中国石油化工股份有限公司 A kind of fracturing sliding bush
CN108625841A (en) * 2018-03-16 2018-10-09 中国石油天然气股份有限公司 A kind of refracturing method that the sealing of horizontal well annular space is made with pitching sliding sleeve connection
CN112324416A (en) * 2020-11-05 2021-02-05 中国石油天然气股份有限公司 Multi-packer process pipe column and method for selective and repeated reconstruction of old well
CN112502682A (en) * 2020-11-05 2021-03-16 中国石油天然气股份有限公司 Production method of preset small-diameter pipe for side drilling well and small-hole well
CN112502682B (en) * 2020-11-05 2022-05-10 中国石油天然气股份有限公司 Production method of preset small-diameter pipe for side drilling well and small-hole well
CN112324416B (en) * 2020-11-05 2022-08-30 中国石油天然气股份有限公司 Multi-packer process pipe column and method for selective and repeated reconstruction of old well

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20170822

Termination date: 20171128

CF01 Termination of patent right due to non-payment of annual fee