CN202745846U - Perforating, fracturing and sand washing integrated tubular column for coiled tubing - Google Patents

Perforating, fracturing and sand washing integrated tubular column for coiled tubing Download PDF

Info

Publication number
CN202745846U
CN202745846U CN 201220338058 CN201220338058U CN202745846U CN 202745846 U CN202745846 U CN 202745846U CN 201220338058 CN201220338058 CN 201220338058 CN 201220338058 U CN201220338058 U CN 201220338058U CN 202745846 U CN202745846 U CN 202745846U
Authority
CN
China
Prior art keywords
fracturing
coiled tubing
sand washing
housing
perforation
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 201220338058
Other languages
Chinese (zh)
Inventor
姜勇
任国富
王治国
邵媛
张丽娟
胡相君
任勇
王在强
冯飞
蒙鑫
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.)
Petrochina Co Ltd
Original Assignee
Petrochina 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 Petrochina Co Ltd filed Critical Petrochina Co Ltd
Priority to CN 201220338058 priority Critical patent/CN202745846U/en
Application granted granted Critical
Publication of CN202745846U publication Critical patent/CN202745846U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Earth Drilling (AREA)

Abstract

The utility model discloses a coiled tubing perforation, fracturing and sand washing integration tubular column is designed for the integration operation that realizes perforation, fracturing and sand washing behind the pressure, by coiled tubing, connector, shearing giving up, mechanical type sleeve pipe collar locator, sprayer and tail pipe are connected and are formed, the sprayer outside is equipped with rightting piece and by pressing the fixed nozzle of cap, the tail pipe outside is equipped with righting piece, inside is equipped with cross baffle and steel ball, the tail pipe lower part has the guide shoe of the little through-hole of fluid for the equipartition. The string utilizes the tail pipe to replace and bear all functions of a conventional coiled tubing fracturing string centralizer, a check valve and a guide shoe, can shorten the distance from a nozzle to a sand surface, enables the ejector to have positive sand washing capacity, can realize perforation, fracturing and sand washing of an oil-gas layer by one string, and is high in construction efficiency. This tubular column is pressed through coiled tubing and is dragged and carry out sand packing between the layer and seal and separate, makes the construction section number unrestricted, adopts coiled tubing perforation and annular space fracturing, does benefit to increase fracturing construction scale, and after the fracturing, the pit shaft can keep big latus rectum, the later stage secondary of the oil gas well of being convenient for reforms transform the operation.

Description

Coiled tubing perforation, pressure break and sand washing integrated pipe column
Technical field
The utility model relates to a kind of coiled tubing perforation, pressure break and sand washing integrated pipe column, belongs to oil and gas wells in oil fields fracturing technique field.
Background technology
Long celebrating oil gas field multilayer build-up, opening as far as possible more multi-layered number has become one of effective way that improves well yield.Conventionally adopt the mode of mechanical packer and sliding bush combination to carry out separate stratum fracfturing, but limited with the hop count of this technological transformation, the pit shaft latus rectum is less after the pressure break.Although well completion of casing sliding sleeve separate stratum fracfturing technique can address the above problem, high to the cementing quality requirement, because there not being the perforation link, the phenomenon of the layer of not turning up the soil can appear pressing in the fracturing process.
The coiled tubing fracturing technique have transform the number of plies unrestricted, can with pressurely drag operation and pressure break after pit shaft keep the advantages such as large latus rectum, at present, be subjected to the restriction of coiled tubing size, each major oil and gas field uses the reforming technology of coiled tubing hydraulic jet perforation, annular fracturing usually, and this technique can be taked back-up sand layering and mechanical packer layering dual mode.The downhole tool of mechanical packer layering is complicated, has larger bit freezing risk.Because domestic fracturing pipe column of continuous oil pipe do not possess the sand washing function, in fracturing process and in the sand washing operation of pressure break after complete, be lowered to sand-flushing pipe column one time, so construction sequence is many, the cycle is long.
Summary of the invention
The purpose of this utility model is to provide a kind of coiled tubing perforation, pressure break and sand washing integrated pipe column, and it can with pressurely drag realizes perforation, pressure break and press the rear integrated operation of sand washing.
Concrete technical scheme of the present utility model is as follows:
This integrated pipe column coiled tubing lower end connects connector, and the connector lower end connects to shear gives up, and shears the lower end of giving up and connects the mechanical type casing collar locator (CCL), and mechanical casing collar locator lower end connects ejector, ejector lower end union tail.
The housing outer wall top of ejector is provided with uniform wiper block, and the housing barrel is provided with radially screw, and nozzle is fixed on radially in the screw by pressure cap.
The housing outer wall top of tail pipe is provided with uniform wiper block, the inner walls top cross baffle that is threaded, and steel ball is located at housing internal taper hole bottom, and lower housing portion is guide shoe, is evenly equipped with the fluid small through hole on the guide shoe barrel.
The utility model integrated pipe column utilizes tail pipe to substitute and bear the repertoire of conventional fracturing pipe column of continuous oil pipe centralizer, ball-and-seat and guide shoe, can shorten nozzle apart from the distance of sand face, make the standby positive sand washing ability of ejector, do not need to descend specially again sand-flushing pipe column, but one-trip string is realized perforation, pressure break and the sand washing of oil-gas Layer, and efficiency of construction is high.Carry out interlayer back-up sand packing by with pressure the dragging of coiled tubing, make the construction hop count unrestricted, adopt coiled tubing perforation and annular fracturing, can make string friction little, be beneficial to the pressing crack construction scale that increases, after pressure break finishes, pit shaft can keep large latus rectum, is convenient to the Late reformation operation of Oil/gas Well.
Description of drawings
Fig. 1 is coiled tubing perforation, pressure break and sand washing integrated pipe column schematic diagram.
Fig. 2 is the ejector sectional drawing.
Fig. 3 is the tail pipe sectional drawing.
The specific embodiment
Further specify referring to figs. 1 through 3 couples of embodiment of the present utility model:
Embodiment:
This integrated pipe column coiled tubing 1 lower end connects connector 2, connector 2 lower ends connect to shear gives up 3, shearing 3 lower ends of giving up connect mechanical type casing collar locator (CCL) 4, and mechanical casing collar locator 4 lower ends connect ejector 5, ejector 5 lower end union tails 6.
The housing 51 outer wall tops of ejector 5 are provided with six uniform wiper blocks 54, and housing 5 barrels are provided with the radially screw that three apertures are φ 4.0~φ 5.5mm, and nozzle 53 is fixed on radially in the screw by pressure cap 52.
The housing 61 outer wall tops of tail pipe 6 are provided with six uniform wiper blocks 65, and steel ball 63 is located at housing 61 internal taper hole bottoms, and the cross baffle 62 of restriction steel ball 63 scopes of activities is threaded in housing 61 upper inside wall.Housing 61 bottoms are the columnar guide shoe 64 of back cover, are evenly equipped with the fluid small through hole on guide shoe 64 barrels.
The utility model coiled tubing perforation, pressure break and the sand washing integrated pipe column course of work are as follows:
1. be lowered to integrated pipe column, by mechanical casing collar locator 4 location, ejector 5 aimed at the first floor position that needs transformation.
2. hydraulic jet perforation: inject perforating fluid and carry out hydraulic perforating from coiled tubing 1, when load fluid to the distance of nozzle 53 is 200m, improve discharge capacity, abrasive perforating, perforating fluid injects from coiled tubing 1, returns out from oil, cover annular space.
3, annular fracturing: after perforation is finished, inject fracturing fluid from oil, cover annular space, coiled tubing 1 keeps 0.1m simultaneously 3The fracturing fluid discharge capacity of/min.
4, the anti-back-up sand that circulates: behind the complete first paragraph of pressure break, replace corresponding sand amount by main pressure break latter end oil, cover annular space, sedimentation was visited the sand face after 1 hour.Such as needs, can carry out the reverse circulation sand washing by this tubing string, adjust sand face height.
5, reverse circulation sand washing: repeat the 1-4 step and finish all the other two-layer pressure breaks, utilize the direct circulation of this tubing string sand grains to be rushed (because tail pipe 6 length are shorter, nozzle 53 is apart from sand washing sand identity distance from also corresponding shortening, sand cleaning fluid out can feed through to the sand washing sand face that needs from nozzle 53, and sand grains is rushed), then adopt anti-circulation that sand grains is carried out pit shaft, finish the sand washing operation.
6, completion: after sand washing is finished, trip out integrated pipe column, be lowered to conventional flow string, completion production.

Claims (1)

1. a coiled tubing perforation, pressure break and sand washing integrated pipe column is characterized in that:
The coiled tubing lower end connects connector (2), connector (2) lower end connects shears give up (3), shearing (3) lower end of giving up connects mechanical type casing collar locator (CCL) (4), mechanical casing collar locator (4) lower end connects ejector (5), ejector (5) lower end union tail (6);
Housing (51) the outer wall top of ejector (5) is provided with uniform wiper block (54), and housing (5) barrel is provided with radially screw, and nozzle (53) is fixed on radially in the screw by pressure cap (52);
Housing (61) the outer wall top of tail pipe (6) is provided with uniform wiper block (65), housing (61) the upper inside wall cross baffle (62) that is threaded, steel ball (63) is located at housing (61) internal taper hole bottom, housing (61) bottom is guide shoe (64), is evenly equipped with the fluid small through hole on guide shoe (64) barrel.
CN 201220338058 2012-07-12 2012-07-12 Perforating, fracturing and sand washing integrated tubular column for coiled tubing Expired - Fee Related CN202745846U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220338058 CN202745846U (en) 2012-07-12 2012-07-12 Perforating, fracturing and sand washing integrated tubular column for coiled tubing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220338058 CN202745846U (en) 2012-07-12 2012-07-12 Perforating, fracturing and sand washing integrated tubular column for coiled tubing

Publications (1)

Publication Number Publication Date
CN202745846U true CN202745846U (en) 2013-02-20

Family

ID=47705263

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220338058 Expired - Fee Related CN202745846U (en) 2012-07-12 2012-07-12 Perforating, fracturing and sand washing integrated tubular column for coiled tubing

Country Status (1)

Country Link
CN (1) CN202745846U (en)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103244083A (en) * 2013-04-25 2013-08-14 中国石油天然气股份有限公司 Foam-assisted hydraulic sand-blasting perforation process pipe column and method
CN103306645A (en) * 2013-06-20 2013-09-18 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 Once drilling fracturing completion pipe string of horizontal well and drilling fracturing completion technology
CN103498648A (en) * 2013-10-17 2014-01-08 中国科学院广州能源研究所 Method and device for exploiting aquo-complex through combination of pressure reducing technology and hydraulic fracturing technology
CN104213895A (en) * 2013-06-05 2014-12-17 中国石油天然气股份有限公司 Hydraulic sand-blasting perforation fracturing and sand-filling combined process method
CN104213891A (en) * 2013-06-05 2014-12-17 中国石油天然气股份有限公司 Coiled tubing controllable packer process pipe column for old well repeated reconstruction
CN104481489A (en) * 2014-11-11 2015-04-01 中国石油天然气股份有限公司 Coiled tubing fracturing and well completion integrated process method for gas well vertical well
CN105089553A (en) * 2014-05-14 2015-11-25 中国石油天然气股份有限公司 Oil field horizontal well pressurized multi-section fracturing transformation operation valve and reverse well-flushing unfreezing method
CN105089554A (en) * 2014-05-14 2015-11-25 中国石油天然气股份有限公司 Oil field horizontal well pressurized dragging fracturing reconstruction operation valve and reverse well-flushing unfreezing method
CN105201461A (en) * 2015-09-02 2015-12-30 北京泰坦通源天然气资源技术有限公司 Multistage sand jet perforation and fracture combined operation method adopting coiled tubing and bottom packer
CN104453798B (en) * 2014-10-31 2017-02-15 克拉玛依市红都有限责任公司 PVC sleeve pipe waterpower sand blasting perforation device and using method thereof
CN107905776A (en) * 2017-12-04 2018-04-13 中国石油天然气股份有限公司 Gas well fracturing liquid drainage system and method
CN108104757A (en) * 2017-08-17 2018-06-01 中国石油天然气股份有限公司 Unfreezing tool and unfreezing method
CN109469463A (en) * 2018-10-23 2019-03-15 中国石油集团渤海钻探工程有限公司 The more shower holes of straight well coiled tubing and back-up sand connection make fracturing process
CN109989723A (en) * 2017-12-29 2019-07-09 中国石油天然气股份有限公司 Multi-cluster perforation combined fracturing sealing device for blasting releasing
CN111877999A (en) * 2020-08-24 2020-11-03 中国石油化工股份有限公司 Coiled tubing hydraulic sand blasting perforation setting bridge plug integrated tubular column and construction method
CN112443286A (en) * 2019-09-04 2021-03-05 中国石油化工股份有限公司 Plasma cutting device and method for underground oil casing
CN113818878A (en) * 2021-10-28 2021-12-21 烟台杰瑞石油装备技术有限公司 Hydraulic fracturing rock breaking method and system

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103244083B (en) * 2013-04-25 2015-10-14 中国石油天然气股份有限公司 Foam-assisted hydraulic sand-blasting perforation process pipe column and method
CN103244083A (en) * 2013-04-25 2013-08-14 中国石油天然气股份有限公司 Foam-assisted hydraulic sand-blasting perforation process pipe column and method
CN104213895B (en) * 2013-06-05 2018-02-02 中国石油天然气股份有限公司 Hydraulic sand-blasting perforation fracturing and sand-filling combined process method
CN104213895A (en) * 2013-06-05 2014-12-17 中国石油天然气股份有限公司 Hydraulic sand-blasting perforation fracturing and sand-filling combined process method
CN104213891A (en) * 2013-06-05 2014-12-17 中国石油天然气股份有限公司 Coiled tubing controllable packer process pipe column for old well repeated reconstruction
CN103306645A (en) * 2013-06-20 2013-09-18 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 Once drilling fracturing completion pipe string of horizontal well and drilling fracturing completion technology
CN103306645B (en) * 2013-06-20 2015-10-28 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 Horizontal well the pressure of the drill splits completion tubular column and technique thereof
CN103498648A (en) * 2013-10-17 2014-01-08 中国科学院广州能源研究所 Method and device for exploiting aquo-complex through combination of pressure reducing technology and hydraulic fracturing technology
CN105089553A (en) * 2014-05-14 2015-11-25 中国石油天然气股份有限公司 Oil field horizontal well pressurized multi-section fracturing transformation operation valve and reverse well-flushing unfreezing method
CN105089554A (en) * 2014-05-14 2015-11-25 中国石油天然气股份有限公司 Oil field horizontal well pressurized dragging fracturing reconstruction operation valve and reverse well-flushing unfreezing method
CN104453798B (en) * 2014-10-31 2017-02-15 克拉玛依市红都有限责任公司 PVC sleeve pipe waterpower sand blasting perforation device and using method thereof
CN104481489A (en) * 2014-11-11 2015-04-01 中国石油天然气股份有限公司 Coiled tubing fracturing and well completion integrated process method for gas well vertical well
CN105201461A (en) * 2015-09-02 2015-12-30 北京泰坦通源天然气资源技术有限公司 Multistage sand jet perforation and fracture combined operation method adopting coiled tubing and bottom packer
CN108104757A (en) * 2017-08-17 2018-06-01 中国石油天然气股份有限公司 Unfreezing tool and unfreezing method
CN108104757B (en) * 2017-08-17 2020-04-10 中国石油天然气股份有限公司 Unfreezing tool and unfreezing method
CN107905776A (en) * 2017-12-04 2018-04-13 中国石油天然气股份有限公司 Gas well fracturing liquid drainage system and method
CN109989723A (en) * 2017-12-29 2019-07-09 中国石油天然气股份有限公司 Multi-cluster perforation combined fracturing sealing device for blasting releasing
CN109989723B (en) * 2017-12-29 2021-11-02 中国石油天然气股份有限公司 Multi-cluster perforation combined fracturing sealing device for blasting releasing
CN109469463A (en) * 2018-10-23 2019-03-15 中国石油集团渤海钻探工程有限公司 The more shower holes of straight well coiled tubing and back-up sand connection make fracturing process
CN112443286A (en) * 2019-09-04 2021-03-05 中国石油化工股份有限公司 Plasma cutting device and method for underground oil casing
CN112443286B (en) * 2019-09-04 2023-12-29 中国石油化工股份有限公司 Underground oil casing plasma cutting device and method
CN111877999A (en) * 2020-08-24 2020-11-03 中国石油化工股份有限公司 Coiled tubing hydraulic sand blasting perforation setting bridge plug integrated tubular column and construction method
CN113818878A (en) * 2021-10-28 2021-12-21 烟台杰瑞石油装备技术有限公司 Hydraulic fracturing rock breaking method and system

Similar Documents

Publication Publication Date Title
CN202745846U (en) Perforating, fracturing and sand washing integrated tubular column for coiled tubing
CN108979569A (en) A kind of method of three layers of de-plugging of fixed tubular column
CN101270639A (en) Packer packing multilayer hydraulic sand blasting perforation and fracturing integrated process method
CN101343991A (en) Single-inner-diameter well completion well body structure and well completion method
CN202900225U (en) Stage-number-unlimited intelligent well cementation sliding sleeve layered fracturing reconstruction process pipe column
CN104213895A (en) Hydraulic sand-blasting perforation fracturing and sand-filling combined process method
CN103334717A (en) Oil pumping device for oil field oil pumping well
CN104563997A (en) Hydraulic jet and bridge plug combined process pipe column and working method thereof
CN202500541U (en) Multistage layered fracturing process pipe column for gas well vertical well
CN202000977U (en) Sandblast perforating fracturing machine
CN205370460U (en) Sandblast perforation allies oneself with with bridging plug makes tubular column that carries out staged fracturing
CN202170789U (en) Sliding sleeve adaptor
CN204941904U (en) A kind of sand-proof oil-well pump and plunger thereof
CN202596633U (en) Tool for expandable casing in open hole section
CN204024624U (en) Multistage large-drift-diameter annular throttling sand blower
CN203879719U (en) Integrated gas injecting and oil extracting pump
CN107989578A (en) Liquid discharge system and method of recyclable nitrogen jet pump of coiled tubing
CN204041042U (en) A kind of coiled tubing drag fracturing tubing string
CN103437742A (en) Sand-replenishing tool for rapidly opening and closing filling channel
CN203394497U (en) Hydraulic perforation oil casing pressure integrated separate-layer fracturing string
CN103806882A (en) Method and device for gas-lift liquid mining
CN203161114U (en) Hydraulic centralizer suitable for multistage hydraulic jet fracturing
CN103362488A (en) Sand blasting device allowing fracturing sliding sleeve to be fished
CN202531150U (en) Fishable fracturing sliding sleeve sand spraying device
CN202370495U (en) Sand blasting perforation annular mechanical packing multilayer fracturing tool tubular column for oil-gas well

Legal Events

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

Granted publication date: 20130220

Termination date: 20210712

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