CN203050606U - Large-drift-diameter open-hole packer - Google Patents

Large-drift-diameter open-hole packer Download PDF

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Publication number
CN203050606U
CN203050606U CN 201220651548 CN201220651548U CN203050606U CN 203050606 U CN203050606 U CN 203050606U CN 201220651548 CN201220651548 CN 201220651548 CN 201220651548 U CN201220651548 U CN 201220651548U CN 203050606 U CN203050606 U CN 203050606U
Authority
CN
China
Prior art keywords
packing element
piston
parent tube
hole packer
long
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
CN 201220651548
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Chinese (zh)
Inventor
王玥
张荣文
张恒
张立娜
张永忠
张文华
杨文领
于学良
刘洋
徐鹏
孙巍巍
周刚
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.)
China National Petroleum Corp
CNPC Bohai Drilling Engineering Co Ltd
Original Assignee
CNPC Bohai Drilling Engineering Co Ltd
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 CNPC Bohai Drilling Engineering Co Ltd filed Critical CNPC Bohai Drilling Engineering Co Ltd
Priority to CN 201220651548 priority Critical patent/CN203050606U/en
Application granted granted Critical
Publication of CN203050606U publication Critical patent/CN203050606U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a large-drift-diameter open-hole packer, which comprises a base pipe, a lower joint, a lifting nipple, combined compression rubber sleeves and a compact hydraulic cylinder part. The top part of the base pipe is connected with the lifting nipple. The compact hydraulic cylinder part is arranged at the middle part of the base pipe. The lower joint is arranged at the bottom part of the base pipe. The two ends of the base pipe are respectively provided with a combined compression rubber sleeve. The large-drift-diameter open-hole packer disclosed by the utility model has the advantages that the structure is compact, the drift diameter is large and the requirements on construction in various pipes can be satisfied; and since four rubber sleeves which take a sealing effect are arranged at the two ends, the sealing performance is reliable and the application scope is wide.

Description

Big latus rectum open hole packer
Technical field
The utility model relates to well and bores field, particularly a kind of big latus rectum open hole packer.
Background technology
Domestic common open hole packer has three kinds at present, be respectively that radially hydraulic expansion formula packer, chance oil are met water self-expanding packer and compression packing element formula packer, they respectively have characteristics: radially hydraulic expansion formula packing element is long, packing is effective, bearing capacity is higher, but because packing element internal construction complexity, make it latus rectum little, be unfavorable for follow-up construction; Chance oil is met water packing element length, interior latus rectum is big, but domestic expansion packing element intensity is low, can't bear bigger pressure reduction; The compression Tubing Packer is easy to use, bearing capacity is high, internal diameter is big, but packing element is short, and the effect of packing bore hole is not as radially hydraulic expansion formula packer and chance oil are met water self-expanding packer.
The utility model content
Increase latus rectum when technical problem to be solved in the utility model provides a kind of guaranteed strength, shorten length, improve the big latus rectum open hole packer of bore hole sealing performance.
To achieve these goals, the technical solution of the utility model is as follows:
A kind of big latus rectum open hole packer, comprise parent tube, lower contact, lifting sub, combined type compression packing element and compact hydraulic cylinder part, described parent tube top is connected with described lifting sub, this parent tube middle part is provided with described compact hydraulic cylinder part, the bottom is connected with lower contact, and the two ends of described parent tube respectively are provided with a described combined type compression packing element.
Preferred described combined type compression packing element is disposed with described wedge shape protection packing element, Z type spacer ring, secondary packing element, T type spacer ring, main packing element, Z type spacer ring and wedge shape protection packing element according to the piston thrust direction; described Z type spacer ring lower end is arranged in the wedge shape protection packing element; the upper end is arranged at the secondary packing element outside, describedly all is arranged at outside main packing element and the secondary packing element for the T type spacer ring upper end that main packing element and secondary packing element are separated.
Preferred described compact hydraulic cylinder part comprises short lock piston, short piston, fluid cylinder, shear pin, lock dog, long-term job plug, long lock piston and attachment cap, described short lock piston is fixedly installed on the parent tube, described short piston is fixedly set in correspondence position on the described short lock piston by lock dog, this weak point piston is provided with by the fixing long-term job plug of shear pin, and fixedly connected by screw thread with described fluid cylinder, described long lock piston is arranged in the fluid cylinder, and described attachment cap is fixedlyed connected by screw thread with the long-term job plug.
Be provided with between preferred described combined type compression packing element and the compact hydraulic cylinder part and mend the shape ring.
The hardness of preferred described wedge shape protection packing element is greater than the hardness of secondary packing element, and the hardness of secondary packing element is greater than the hardness of main packing element.
The advantage of big latus rectum open hole packer described in the utility model is:
(1) simple, the compact conformation of tool operation, latus rectum are big, can satisfy construction requirement in a few class pipes;
(2) four packing elements that seal have been used at two ends, and sealing performance is reliable;
(3) at the designing requirement optimal design of packing bore hole combined type compression packing element, guarantee that packing element has high bearing capacity in bore hole, and packing element can not cause damage because of overcompression in bore hole;
(4) be widely used, this packer can be used in the interior construction operation of managing outer and completion of pipe of all types of wells.
Description of drawings
Fig. 1 is structural representation of the present utility model,
Fig. 2 is left side of the present utility model partial schematic diagram,
Fig. 3 is right side of the present utility model partial schematic diagram.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:
As shown in Figure 1 to Figure 3, a kind of big latus rectum open hole packer of the present utility model, comprise parent tube 4, lower contact 19, lifting sub 100, combined type compression packing element 101 and compact hydraulic cylinder part 102, described parent tube 4 tops are connected with described lifting sub 100, these parent tube 4 middle parts are provided with described compact hydraulic cylinder part 102, the bottom is connected with lower contact 19, and the two ends of parent tube 4 respectively are provided with a described combined type compression packing element 101.
Preferred described combined type compression packing element 101 is disposed with described wedge shape protection packing element 5, Z type spacer ring 6, secondary packing element 9, T type spacer ring 8, main packing element 7, Z type spacer ring 6 and wedge shape protection packing element 5 according to the piston thrust direction; described Z type spacer ring 6 lower ends are arranged in the wedge shape protection packing element 5, and the upper end is arranged at secondary packing element 9 outsides.
Preferred described compact hydraulic cylinder part 102 comprises short lock piston 11, short piston 12, fluid cylinder 13, shear pin 14, lock dog 15, long-term job plug 16, long lock piston 17 and attachment cap 18, described short lock piston 11 is fixedly installed on the parent tube 4, described short piston 12 is fixedly set in correspondence position on the described short lock piston 11 by lock dog 15, this weak point piston 12 is provided with the long-term job plug of fixing by shear pin 14 16, and fixedly connected by screw thread with described fluid cylinder 13, described long lock piston 17 is arranged in the fluid cylinder 13, and described attachment cap 18 and long-term job plug 16 are fixedlyed connected by screw thread.
Be provided with between preferred described combined type compression packing element 101 and the compact hydraulic cylinder part 102 and mend shape ring 10.
The hardness of preferred described wedge shape protection packing element 5 is greater than the hardness of secondary packing element 9, and the hardness of secondary packing element 9 is greater than the hardness of main packing element 7.
Preferred described lifting sub 100 comprises box cupling 1, short sleeve 2, parent tube adapter sleeve 3, described box cupling 1 links to each other with short sleeve 2 by sleeve pipe taper button 20, short sleeve 2 is connected with parent tube adapter sleeve 3 by taper button 20, and parent tube adapter sleeve 3 is connected on the parent tube 4 by trapezoid buckle 21.
During work, piston in the compact hydraulic cylinder part 102 is stressed to be stretched out, highly pressurised liquid flow between short piston 12 and the long-term job plug 16 by the flowing hole on the parent tube 4, shear pin 14 stressed the cutting off of fixing short piston 12 and long-term job plug 16, first group of combination compression packing element 101 that correspondence position is pushed in long-term job plug 16 motion earlier makes it to expand, after long-term job plug 16 is walked enough certain strokes, lock dog 15 restriction cancellation and outwards slippage release, short piston 12 related fluid cylinders 13 are setting in motion also, second group of combination compression packing element 101 pushing correspondence position makes it to expand, long-term job plug 16 can be locked together itself and fluid cylinder 13 by long lock piston 17 in motion process, after 16 motions of long-term job plug put in place, long lock piston 17 can fall into the continuation campaign that corresponding groove is used for restriction long-term job plug 16, short piston 12 related fluid cylinders 13 can be locked on the parent tube 4 by short lock piston 11 in motion process, after short piston 12 motions put in place, short lock piston 11 can fall into the continuation campaign that corresponding groove is used for the short piston 12 of restriction, two groups of combined type compression packing elements 101 are all squeezed and are expanded thus, the plug of long-term job simultaneously 16, short piston 12, fluid cylinder 13 and parent tube 4 lock mutually, occurrence positions does not change again, realizes the purpose of packing bore hole.
In sum, content of the present utility model is not limited in the above-described embodiment, and those skilled in the art can propose other embodiment within technological guidance's thought of the present utility model, but this embodiment is included within the scope of the present utility model.

Claims (5)

1. one kind big latus rectum open hole packer, comprise parent tube (4), lower contact (19), lifting sub (100), combined type compression packing element (101) and compact hydraulic cylinder part (102), described parent tube (4) top is connected with described lifting sub (100), this parent tube (4) middle part is provided with described compact hydraulic cylinder part (102), the bottom is connected with lower contact (19), it is characterized in that: the two ends of described parent tube (4) respectively are provided with a described combined type compression packing element (101).
2. big latus rectum open hole packer according to claim 1; it is characterized in that: described combined type compression packing element (101) is equipped with wedge shape protection packing element (5), Z type spacer ring (6), secondary packing element (9), T type spacer ring (8), main packing element (7), Z type spacer ring (6) and the wedge shape protection packing element (5) that is arranged on the described parent tube (4) successively according to the piston thrust direction; described Z type spacer ring (6) lower end is arranged in the wedge shape protection packing element (5), and the upper end is arranged at secondary packing element (9) outside.
3. big latus rectum open hole packer according to claim 1, it is characterized in that: described compact hydraulic cylinder part (102) comprises short lock piston (11), short piston (12), fluid cylinder (13), shear pin (14), lock dog (15), long-term job plug (16), long lock piston (17) and attachment cap (18), described short lock piston (11) is fixedly installed on the parent tube (4), described short piston (12) is fixedly set in correspondence position on the described short lock piston (11) by lock dog (15), this weak point piston (12) is provided with by the fixing long-term job plug (16) of shear pin (14), and fixedly connected by screw thread with described fluid cylinder (13), described long lock piston (17) is arranged in the fluid cylinder (13), and described attachment cap (18) is fixedlyed connected by screw thread with long-term job plug (16).
4. big latus rectum open hole packer according to claim 1 is characterized in that: be provided with between described combined type compression packing element (101) and the compact hydraulic cylinder part (102) and mend shape ring (10).
5. big latus rectum open hole packer according to claim 2 is characterized in that: the hardness of described wedge shape protection packing element (5) is greater than the hardness of secondary packing element (9), and the hardness of secondary packing element (9) is greater than the hardness of main packing element (7).
CN 201220651548 2012-11-29 2012-11-29 Large-drift-diameter open-hole packer Expired - Fee Related CN203050606U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220651548 CN203050606U (en) 2012-11-29 2012-11-29 Large-drift-diameter open-hole packer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220651548 CN203050606U (en) 2012-11-29 2012-11-29 Large-drift-diameter open-hole packer

Publications (1)

Publication Number Publication Date
CN203050606U true CN203050606U (en) 2013-07-10

Family

ID=48733571

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220651548 Expired - Fee Related CN203050606U (en) 2012-11-29 2012-11-29 Large-drift-diameter open-hole packer

Country Status (1)

Country Link
CN (1) CN203050606U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104018805A (en) * 2014-06-16 2014-09-03 中国海洋石油总公司 Dual-rubber-sleeve thermal recovery packer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104018805A (en) * 2014-06-16 2014-09-03 中国海洋石油总公司 Dual-rubber-sleeve thermal recovery packer
CN104018805B (en) * 2014-06-16 2017-03-08 中国海洋石油总公司 Double packing element thermal packers

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20201221

Address after: 100007 No. 9 North Main Street, Dongcheng District, Beijing, Dongzhimen

Patentee after: CHINA NATIONAL PETROLEUM Corp.

Patentee after: CNPC Bohai Drilling Engineering Co.,Ltd.

Address before: 300457 Tianjin Binhai New Area Development Zone Huanghai Road 106 Bohai Drilling Engineering Co., Ltd. science and Technology Development Office

Patentee before: CNPC Bohai Drilling Engineering Co.,Ltd.

TR01 Transfer of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130710

Termination date: 20211129

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