CN102155202A - Quick connecting and fixing device for orientated perforator - Google Patents

Quick connecting and fixing device for orientated perforator Download PDF

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Publication number
CN102155202A
CN102155202A CN2011100983358A CN201110098335A CN102155202A CN 102155202 A CN102155202 A CN 102155202A CN 2011100983358 A CN2011100983358 A CN 2011100983358A CN 201110098335 A CN201110098335 A CN 201110098335A CN 102155202 A CN102155202 A CN 102155202A
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CN
China
Prior art keywords
orientation
single joint
rifle head
screw thread
joint
Prior art date
Application number
CN2011100983358A
Other languages
Chinese (zh)
Inventor
董经利
张�林
张波
张脉全
刘云刚
刘增
张志强
Original Assignee
中国石油化工集团公司
中国石化集团胜利石油管理局测井公司
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 中国石油化工集团公司, 中国石化集团胜利石油管理局测井公司 filed Critical 中国石油化工集团公司
Priority to CN2011100983358A priority Critical patent/CN102155202A/en
Publication of CN102155202A publication Critical patent/CN102155202A/en

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Abstract

The invention discloses a quick connecting and fixing device for an orientated perforator. In an orientated gun head, the tail end of a sealing groove on the outer side of an original conventional pressure or collision gun head is provided with a fixing screw thread and a fixing clamping band; a perforating gun is connected with the gun head through a single joint, thus the length of an original middle joint is reduced; the tail ends of sealing grooves at the two ends of an oriented single joint are provided with fixing external threads and fixing clamping bands; a transverse-H-shaped clamping groove is formed in the middle of the oriented single joint; and the inner side of the upper end of the oriented single joint is provided with a centering hole. The gun head, the single joint and the perforating gun are fixed, retreat outwards through the clamping band and form reverse extruding with the screwing of the gun head of the perforating gun, so that quick self-locking of an adjustable position is realized, and the consistence of blind hole directions between perforators and the consistence of the blind hole direction of the perforating gun and the measuring direction of an oriented pipe nipple are realized.

Description

A kind of oriented perforator is connected and fixed device fast

Technical field

The present invention relates to oriented perforator, specifically a kind of oriented perforator is connected and fixed device fast.

Background technology

The ratio of extra-low permeability accounts for more than 70% in the new proved reserves in some oil fields or oil district at present, and hypotonic, special low permeability reservoirs exploration and development difficulty is big, and the well recovery that has is lower, even the well that has must can be built product through fracturing reform.The oriented perforation technology is applied in the oil field now, has improved the effect of fracturing reform.Such as publication number is 101824978A, open day be a kind of high accuracy oriented perforator of Chinese patent application of 2010-0908, comprises perforating gun head, adjusts ring, the positioning and locking ring, goes up top connection in the middle of perforating gun body, the orientation, the middle lower contact of orientation, following perforating gun body, perforation gun breech and ripple spring.Now be connected and fixed device positioning accuracy height with oriented perforator, safe and reliable, but complex structure, complex operation, and perforator between connection still adopt and descend twin adapter to be connected and fixed mode traditionally, the shortening to the perforation blind area distance between perforating gun and the rifle does not improve, and blind area length reaches 49mm, has reduced perforating bullet cloth hole number.

Summary of the invention

The objective of the invention is defective at the prior art existence, provide a kind of oriented perforator to be connected and fixed device fast, simple in structure, can connect fast with position adjustable fixing fast, shorten the perforation blind area length between the perforating gun simultaneously, increased effective cloth hole number of oriented perforator.

The technical solution adopted for the present invention to solve the technical problems is: a kind of oriented perforator is connected and fixed device fast, and its structure comprises orientation rifle head, orientation joint; Described orientation joint is the single joint of orientation, and described orientation rifle head connects oriented perforator by the single joint of orientation.

The single joint outer surface of described orientation rifle head and orientation is provided with trapezoidal external screw thread and fixing external screw thread, and the fixedly external screw thread of the single joint of described orientation rifle head and orientation all is with fixing hoop.

The trapezoidal external screw thread of the single joint of described orientation rifle head and orientation and fixedly the external surface between the external screw thread be provided with seal groove, also be provided with I shape Card trough and standard spanner duct at orientation rifle head and the single joint of orientation in addition.

Described orientation rifle head inner chamber offers priming device and connects internal thread, detonating fuse passage; Between priming device connection internal thread, detonating fuse passage, offer and set upright the colloid groove.

The single joint inner chamber of described orientation offers the detonating fuse centralizer body guiding groove and the detonating fuse passage of mutual perforation.

A kind of oriented perforator of the present invention is connected and fixed device fast and compares with prior art, has following beneficial effect:

The orientation rifle head that oriented perforator of the present invention is connected and fixed device fast is at former conventional pressure type or impacting type rifle head outside seal groove end fixedly screw thread and fixing hoop to be set; Being connected between perforating gun and the rifle head changes single joint into by original twin adapter and connects, shortened the length of original transition joint, the sealed at both ends groove end of the single joint of orientation all is provided with fixedly external screw thread and fixing hoop, and the centre is provided with the I shape draw-in groove, and the inboard, upper end is provided with righting hole.Fixing of rifle head, single joint and perforating gun, by the outside rollback of clip, form reverse extruding with the perforating gun head precession, realize that the position adjustable fast self-locking is tight, realize that the unanimity and the blind holes of perforating gun direction of blind hole direction between the perforator is consistent with orientation pipe nipple direction of measurement.The present invention is simple in structure, can realize that position adjustable is connected and fixed fast between the oriented perforator, and has shortened the length of perforation blind area between the perforating gun string, and blind area length only has 23mm, and single the effective cloth hole number of oriented perforation rifle has improved 4 holes.

Description of drawings

Fig. 1 is connected and fixed the structural representation of the orientation rifle head of device fast for a kind of oriented perforator of the present invention;

Fig. 2 is connected and fixed the structural representation of the single joint of orientation of device fast for a kind of oriented perforator of the present invention.

Among the figure: trapezoidal external screw thread 101, seal groove 102, fixedly external screw thread 103, fixing hoop 104, standard spanner duct 105, I shape Card trough 106, priming device connect internal thread 107, set upright colloid groove 108, detonating fuse path 10 9 forms; Trapezoidal external screw thread 201, seal groove 202, fixedly external screw thread 203, fixing hoop 204, standard spanner duct 205, I shape Card trough 206, detonating fuse centralizer body guiding groove 207, detonating fuse passage 208.

The specific embodiment

Next explain below with reference to Figure of description a kind of oriented perforator of the present invention being connected and fixed the device work fast.

A kind of oriented perforator is connected and fixed device fast, and its structure comprises orientation rifle head, orientation joint; Described orientation joint is the single joint of orientation, and described orientation rifle head connects oriented perforator by the single joint of orientation.The single joint outer surface of described orientation rifle head and orientation is provided with trapezoidal external screw thread and fixing external screw thread, and the fixedly external screw thread of the single joint of described orientation rifle head and orientation all is with fixing hoop.The trapezoidal external screw thread of the single joint of described orientation rifle head and orientation and fixedly the external surface between the external screw thread be provided with seal groove, also be provided with I shape Card trough and standard spanner duct at orientation rifle head and the single joint of orientation in addition.Described orientation rifle head inner chamber offers priming device and connects internal thread, detonating fuse passage; Between priming device connection internal thread, detonating fuse passage, offer and set upright the colloid groove.The single joint inner chamber of described orientation offers the detonating fuse centralizer body guiding groove and the detonating fuse passage of mutual perforation.

With reference to accompanying drawing 1: fixedly external screw thread 103 is formed quick fixing systems with fixing hoop 104.Fixing hoop 104 inboards are provided with internal thread, are screwed in fixedly on the external screw thread 103, and original state is threaded to inner end.

Orientation rifle head is by trapezoidal external screw thread 101, be connected rifle upper end, perforating gun string top, screwing into certain position stops, outside rollback fixing hoop 104, form reverse extruding with top rifle precession direction, realize the position adjustable self-locking, can realize that the blind hole direction of perforating gun string is consistent with the orientation pipe nipple location survey direction that its upper end connects; Screw thread 107 is used for connecting the propagation of explosion device that detonates in connecting, can realize perforating gun string with its on the fixedlying connected fast of kit.

With reference to accompanying drawing 2: fixedly external screw thread 203 is formed quick fixing systems with fixing hoop 204.Fixing hoop 204 inboards are provided with internal thread, are screwed in fixedly on the external screw thread 203, and original state is threaded to inner end.

The single joint of orientation is connected between two perforating guns by the trapezoidal external screw thread 201 in two ends, can implement in two steps: at first single joint should be connected earlier on the perforating gun of below, and tightens; Secondly the top perforating gun is connected single upper end of joint, makes the blind hole direction unanimity of upper and lower perforating gun,, realize self-locking by last fixing hoop 204 outside rollbacks.

The above embodiment is a kind of of the more preferably concrete embodiment of the present invention, and common variation that those skilled in the art carries out in the technical solution of the present invention scope and replacement all should be included in protection scope of the present invention.

Claims (5)

1. an oriented perforator is connected and fixed device fast, and its structure comprises orientation rifle head, orientation joint; It is characterized in that: described orientation joint is the single joint of orientation, and described orientation rifle head connects oriented perforator by the single joint of orientation.
2. a kind of oriented perforator according to claim 1 is connected and fixed device fast, it is characterized in that: the single joint outer surface of described orientation rifle head and orientation is provided with trapezoidal external screw thread and fixing external screw thread, and the fixedly external screw thread of the single joint of described orientation rifle head and orientation all is with fixing hoop.
3. a kind of oriented perforator according to claim 2 is connected and fixed device fast, it is characterized in that: the trapezoidal external screw thread of the single joint of described orientation rifle head and orientation and fixedly the external surface between the external screw thread be provided with seal groove, also be provided with I shape Card trough and standard spanner duct at orientation rifle head and the single joint of orientation in addition.
4. a kind of oriented perforator according to claim 3 is connected and fixed device fast, it is characterized in that: described orientation rifle head inner chamber offers priming device and connects internal thread, detonating fuse passage; Between priming device connection internal thread, detonating fuse passage, offer and set upright the colloid groove.
5. a kind of oriented perforator according to claim 3 is connected and fixed device fast, it is characterized in that: the single joint inner chamber of described orientation offers the detonating fuse centralizer body guiding groove and the detonating fuse passage of mutual perforation.
CN2011100983358A 2011-04-19 2011-04-19 Quick connecting and fixing device for orientated perforator CN102155202A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011100983358A CN102155202A (en) 2011-04-19 2011-04-19 Quick connecting and fixing device for orientated perforator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011100983358A CN102155202A (en) 2011-04-19 2011-04-19 Quick connecting and fixing device for orientated perforator

Publications (1)

Publication Number Publication Date
CN102155202A true CN102155202A (en) 2011-08-17

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CN2011100983358A CN102155202A (en) 2011-04-19 2011-04-19 Quick connecting and fixing device for orientated perforator

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CN (1) CN102155202A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103184858A (en) * 2011-12-29 2013-07-03 四川安东油气工程技术服务有限公司 Limiting device
CN104314529A (en) * 2014-09-22 2015-01-28 西安物华巨能爆破器材有限责任公司 Interior orientation autorotation impact initiating device for oil gas well completion

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020092650A1 (en) * 2000-02-15 2002-07-18 Tolman Randy C. Method and apparatus for stimulation of multiple formation intervals
CN2846739Y (en) * 2005-09-27 2006-12-13 大庆油田有限责任公司 Position locating perforator
CN201209435Y (en) * 2008-06-20 2009-03-18 大庆万事达石油科技有限公司 Intermediate joint of perforation gun
CN201262072Y (en) * 2008-08-23 2009-06-24 大庆油田有限责任公司 Screwing type inner blind hole composite perforating tool
CN101691837A (en) * 2009-09-11 2010-04-07 中国兵器工业第二一三研究所 Detonation energization explosion-propagating device for perforating gun string
CN101824978A (en) * 2010-04-29 2010-09-08 中国石油化工集团公司 High accuracy oriented perforator
CN201786342U (en) * 2010-04-29 2011-04-06 中国石油化工集团公司 High-precision oriented perforator
CN202431259U (en) * 2011-04-19 2012-09-12 中国石油化工股份有限公司 Rapid connecting and fixing device of orientation perforator

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020092650A1 (en) * 2000-02-15 2002-07-18 Tolman Randy C. Method and apparatus for stimulation of multiple formation intervals
CN2846739Y (en) * 2005-09-27 2006-12-13 大庆油田有限责任公司 Position locating perforator
CN201209435Y (en) * 2008-06-20 2009-03-18 大庆万事达石油科技有限公司 Intermediate joint of perforation gun
CN201262072Y (en) * 2008-08-23 2009-06-24 大庆油田有限责任公司 Screwing type inner blind hole composite perforating tool
CN101691837A (en) * 2009-09-11 2010-04-07 中国兵器工业第二一三研究所 Detonation energization explosion-propagating device for perforating gun string
CN101824978A (en) * 2010-04-29 2010-09-08 中国石油化工集团公司 High accuracy oriented perforator
CN201786342U (en) * 2010-04-29 2011-04-06 中国石油化工集团公司 High-precision oriented perforator
CN202431259U (en) * 2011-04-19 2012-09-12 中国石油化工股份有限公司 Rapid connecting and fixing device of orientation perforator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103184858A (en) * 2011-12-29 2013-07-03 四川安东油气工程技术服务有限公司 Limiting device
CN103184858B (en) * 2011-12-29 2016-06-08 四川安东油气工程技术服务有限公司 Stop means
CN104314529A (en) * 2014-09-22 2015-01-28 西安物华巨能爆破器材有限责任公司 Interior orientation autorotation impact initiating device for oil gas well completion

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Application publication date: 20110817