CN202900060U - Process string for coiled tubing perforation, casing fracturing and bridge plug packing - Google Patents
Process string for coiled tubing perforation, casing fracturing and bridge plug packing Download PDFInfo
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- CN202900060U CN202900060U CN 201220591947 CN201220591947U CN202900060U CN 202900060 U CN202900060 U CN 202900060U CN 201220591947 CN201220591947 CN 201220591947 CN 201220591947 U CN201220591947 U CN 201220591947U CN 202900060 U CN202900060 U CN 202900060U
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- coiled tubing
- fracturing
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- perforation
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Abstract
The utility model discloses a process string for coiled tubing perforation, casing fracturing and bridge plug packing and designs the string for safe, efficient implementation of cluster segmental fracturing of horizontal wells. A connector, a hydraulic releaser, a casing hoop positioner, an ejector, a slide bushing connected with the ejector, a centralizing slide bushing seat, a hydraulic setting tool and a fast-drilling bridge plug are sequentially connected to a horizontal segment of coiled tubing. The fast-drilling bridge plug of the process string is driven to operate by the coiled tubing, is safe, efficient, and reliable in packing, and is free of modification segment number. The coiled tubing is dragged under pressure. Multi-cluster perforation and post-peroration optical casing fracturing can be completed according to the requirement of 'volumetric fracturing'. String friction resistance is small, and fracturing scale can be widened. After drilling and grinding, large full aperture of the casing can be kept, and late secondary modification of oil and gas wells is facilitated.
Description
Technical field
The utility model relates to a kind of coiled tubing perforation, casing fracturing and bridging plug packing process pipe string, belongs to the oil-gas field fracturing technical field.
Background technology
At present, the oil gas field staged fracturing of horizontal well mainly contains the techniques such as open hole packer, hydraulic sand blasting and waterpower bridging plug, but the waterpower bridging plug has the characteristics such as the reliable light casing fracturing of packing and staged fracturing progression is unrestricted, is the ideal chose of realizing sub-clustering multistage pressure break.The waterpower bridging plug mainly is by waterpower pumping or crawl device fast brill bridging plug and perforating gun connection that cable connects to be made drilling tool down to the precalculated position, setting and discharge bridging plug after, break away from perforating gun, on carry perforating gun to perforation position and carry out many showers hole by design, then drilling tool is carried to well head, adopted low sticking clear water or mixing water to carry out the construction of light casing fracturing, finish successively a plurality of interval operations from bottom to top, adopt at last the continuous tubing drill bridging plug, completion.It is high that crawl device is lowered to the bridging plug cost, and the waterpower pumping then easily is subject to the impact of well track, and the cycle of pumping electric cable bridge plug is longer in horizontal well.Adopt the cable multistep ignition to realize that many showers hole can be subject to the impact of cable load-bearing, multistep ignition perforation hop count can be restricted, in case and can not give up after bridging plug sets in the work progress, cable will be cut off, and causes down-hole accident.
Summary of the invention
The purpose of this utility model is to provide a kind of coiled tubing perforation, casing fracturing and bridging plug packing process pipe string, and it can guarantee that horizontal well sub-clustering multistage pressure break implements safely and efficiently.
Concrete technical scheme of the present utility model is as follows:
Be connected with sliding sleeve, righting type sleeve base, the hydraulic setting tool of connector, hydraulic releasing, casing collar locator (CCL), ejector and connection thereof in turn and bore soon bridging plug at the coiled tubing horizontal segment.
This process pipe string drives the fast bridging plug operation of boring by coiled tubing, and safety, efficient, packing is reliable and it is unrestricted to transform hop count.Coiled tubing is with pressure to be dragged, and can finish light casing fracturing behind many showers hole and the perforation according to " volume fracturing " demand, and string friction is little, is beneficial to the pressing crack construction scale that increases.After the brill mill is complete, can keep the large latus rectum of sleeve pipe, the later-stage secondary of being convenient to Oil/gas Well is transformed operation.
Description of drawings
Fig. 1 is coiled tubing perforation, casing fracturing and bridging plug packing process pipe string structural representation.
The specific embodiment
With reference to Fig. 1 embodiment of the present utility model is further specified:
Embodiment:
This process pipe string is by coiled tubing 1, connector 2, hydraulic releasing 3, casing collar locator (CCL) 4, ejector 5, sliding sleeve 6, righting type sleeve base 7, hydraulic setting tool 8 and bore soon bridging plug 9 and form:
Be connected with connector 2, hydraulic releasing 3, casing collar locator (CCL) 4, ejector 5 in turn and the sliding sleeve 6, righting type sleeve base 7, the hydraulic setting tool 8 that connect by pin and bore soon bridging plug 9 at coiled tubing 1 horizontal segment.
The course of work of coiled tubing perforation, casing fracturing and bridging plug packing process pipe string is as follows:
1, first through wash well operations is lowered to the utility model process pipe string, and by casing collar locator (CCL) 4 location, when fast brill bridging plug 9 arrived design attitude, the ball of throwing φ 15.88mm from ground was to hydraulic setting tool 8 ball seats, and coiled tubing 1 pressurization is finished and set, gives up.
First paragraph perforation, pressing crack construction:
Hydraulic perforation: hydraulic perforation: bridging plug pressure testing 40Mpa, behind the voltage stabilizing 5min, by casing collar locator (CCL) 4 location, on carry coiled tubing 1 to ejector 5 and aim at first bunch of design perforation position; Throw the ball of φ 19.05mm from ground, treat that ball drops on the sliding sleeve 6, the pin that connects ejector 5 and sliding sleeve 6 is sheared in coiled tubing 1 pressurization, and sliding sleeve 6 and steel ball are together fallen on the righting type sleeve base 7, the passage below the shutoff; Inject perforating fluid from coiled tubing 1, carry out the coiled tubing hydraulic perforating; When load fluid during to nozzle distance 200m, improve the discharge capacity abrasive perforating.During perforation, perforating fluid injects from coiled tubing 1, and the oil jacket annular space returns out.After shooting away first bunch, carry 1m on the coiled tubing, repeat the first shower hole step and finish the second shower hole, finish successively the perforation of all the other each bunches.
Light casing fracturing: after perforation is finished, carry to shaft mouth anti-blowout pipe on the coiled tubing 1, inject fracturing fluid from sleeve pipe and finish pressing crack construction.
2, the first paragraph operation complete after, repeating step 1 is finished all the other each section hydraulic jet perforation, light casing fracturing.
3, bridging plug bores the mill operation: be lowered to continuous tubing drill plug instrument, the disposable brill mill operation of finishing all bridging plugs.
4, completion: after the brill mill is finished, trip out continuous tubing drill plug tubing string, be lowered to flow string.
Claims (1)
1. a coiled tubing perforation, casing fracturing and bridging plug packing process pipe string is characterized in that:
Be connected with connector (2), hydraulic releasing (3), casing collar locator (CCL) (4), ejector (5) and the sliding sleeve (6) that connects thereof, righting type sleeve base (7), hydraulic setting tool (8) and the fast bridging plug (9) that bores in turn at coiled tubing (1) horizontal segment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220591947 CN202900060U (en) | 2012-11-12 | 2012-11-12 | Process string for coiled tubing perforation, casing fracturing and bridge plug packing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220591947 CN202900060U (en) | 2012-11-12 | 2012-11-12 | Process string for coiled tubing perforation, casing fracturing and bridge plug packing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202900060U true CN202900060U (en) | 2013-04-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220591947 Expired - Fee Related CN202900060U (en) | 2012-11-12 | 2012-11-12 | Process string for coiled tubing perforation, casing fracturing and bridge plug packing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202900060U (en) |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470242A (en) * | 2013-09-14 | 2013-12-25 | 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 | Oilfield horizontal well volume fracturing method |
| CN104141476A (en) * | 2013-10-12 | 2014-11-12 | 中国石油化工股份有限公司 | Perforation device and perforation method by using same |
| CN104196464A (en) * | 2014-08-27 | 2014-12-10 | 杰瑞能源服务有限公司 | Tubular column string and bridge plug setting and sand blasting perforation combining 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 tubular column for repeated oil well transformation |
| CN104278979A (en) * | 2013-07-05 | 2015-01-14 | 中国石油天然气股份有限公司 | Coiled tubing perforation bridge plug sealing, separating and fracturing method |
| CN104563997A (en) * | 2013-10-29 | 2015-04-29 | 中国石油天然气股份有限公司 | Water-jet and bridge plug combined process tubing string and work thereof |
| CN104564003A (en) * | 2014-12-23 | 2015-04-29 | 中国石油天然气股份有限公司 | Drilling-plug-free pumping-in hydraulic bridge plug staged fracturing method |
| CN104632168A (en) * | 2013-11-15 | 2015-05-20 | 中国石油天然气股份有限公司 | Hydraulic sand blasting perforation large-displacement fracturing technological tubing string and method |
| CN104695923A (en) * | 2013-12-05 | 2015-06-10 | 中国石油天然气股份有限公司 | Method for realizing sectional multi-cluster fracture of horizontal well by adopting soluble balls |
| 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 |
| CN105525902A (en) * | 2016-01-21 | 2016-04-27 | 中国石油化工股份有限公司 | Horizontal well up-going fracturing method for screen pipe suspension well completion |
| CN105822253A (en) * | 2015-01-06 | 2016-08-03 | 中国石油天然气股份有限公司 | Bushing sliding sleeve and hydraulic bridge plug combined type completion pipe string and rapid fracturing method |
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| CN108868729A (en) * | 2018-06-12 | 2018-11-23 | 中国石油集团渤海钻探工程有限公司 | A kind of pressure break process method for well completion |
| CN110130867A (en) * | 2019-04-16 | 2019-08-16 | 中国石油天然气股份有限公司 | A kind of more cluster fracturing process of Slim Hole Sidetracking Technology horizontal well in segments |
| CN111691844A (en) * | 2020-07-07 | 2020-09-22 | 中国石油天然气集团有限公司 | Double-sealing water and gas production string for plugging and use 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 |
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2012
- 2012-11-12 CN CN 201220591947 patent/CN202900060U/en not_active Expired - Fee Related
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| 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 tubular column for repeated oil well transformation |
| CN104278979A (en) * | 2013-07-05 | 2015-01-14 | 中国石油天然气股份有限公司 | Coiled tubing perforation bridge plug sealing, separating and fracturing method |
| CN103470242B (en) * | 2013-09-14 | 2015-08-19 | 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 | A kind of oilfield horizontal well volume fracturing method |
| CN103470242A (en) * | 2013-09-14 | 2013-12-25 | 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 | Oilfield horizontal well volume fracturing method |
| CN104141476A (en) * | 2013-10-12 | 2014-11-12 | 中国石油化工股份有限公司 | Perforation device and perforation method by using same |
| CN104141476B (en) * | 2013-10-12 | 2016-08-17 | 中国石油化工股份有限公司 | Perforating system and the method using its perforation |
| CN104563997A (en) * | 2013-10-29 | 2015-04-29 | 中国石油天然气股份有限公司 | Water-jet and bridge plug combined process tubing string and work thereof |
| CN104632168A (en) * | 2013-11-15 | 2015-05-20 | 中国石油天然气股份有限公司 | Hydraulic sand blasting perforation large-displacement fracturing technological tubing string and method |
| CN104632168B (en) * | 2013-11-15 | 2017-10-17 | 中国石油天然气股份有限公司 | A kind of hydraulic jet perforation huge discharge fracturing technology tubing string and method |
| CN104695923A (en) * | 2013-12-05 | 2015-06-10 | 中国石油天然气股份有限公司 | Method for realizing sectional multi-cluster fracture of horizontal well by adopting soluble balls |
| CN104196464A (en) * | 2014-08-27 | 2014-12-10 | 杰瑞能源服务有限公司 | Tubular column string and bridge plug setting and sand blasting perforation combining method |
| CN104196464B (en) * | 2014-08-27 | 2018-01-30 | 杰瑞能源服务有限公司 | Tubing string string and bridging plug set the method made with abrasive perforating connection |
| CN104564003A (en) * | 2014-12-23 | 2015-04-29 | 中国石油天然气股份有限公司 | Drilling-plug-free pumping-in hydraulic bridge plug staged fracturing method |
| CN105822253A (en) * | 2015-01-06 | 2016-08-03 | 中国石油天然气股份有限公司 | Bushing sliding sleeve and hydraulic bridge plug combined type completion pipe string and rapid fracturing 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 |
| CN105525902A (en) * | 2016-01-21 | 2016-04-27 | 中国石油化工股份有限公司 | Horizontal well up-going fracturing method for screen pipe suspension well completion |
| CN105525902B (en) * | 2016-01-21 | 2019-01-22 | 中国石油化工股份有限公司 | Fracturing process is returned on a kind of complete well water horizontal well of suspension screen casing |
| CN107476793A (en) * | 2016-06-08 | 2017-12-15 | 中国石油化工股份有限公司 | A kind of deep layer shale gas fracturing string and fracturing technology method |
| CN107476793B (en) * | 2016-06-08 | 2020-02-21 | 中国石油化工股份有限公司 | Deep shale gas fracturing pipe column and fracturing process method |
| CN108204228A (en) * | 2016-12-16 | 2018-06-26 | 中国石油化工股份有限公司 | A kind of composite fracturing process pipe string and its application method |
| CN108868729A (en) * | 2018-06-12 | 2018-11-23 | 中国石油集团渤海钻探工程有限公司 | A kind of pressure break process method for well completion |
| CN110130867A (en) * | 2019-04-16 | 2019-08-16 | 中国石油天然气股份有限公司 | A kind of more cluster fracturing process of Slim Hole Sidetracking Technology horizontal well in segments |
| CN110130867B (en) * | 2019-04-16 | 2021-08-31 | 中国石油天然气股份有限公司 | Staged multi-cluster fracturing method for slim-hole sidetracking horizontal well |
| CN111691844A (en) * | 2020-07-07 | 2020-09-22 | 中国石油天然气集团有限公司 | Double-sealing water and gas production string for plugging and use method |
| CN111691844B (en) * | 2020-07-07 | 2024-03-01 | 中国石油天然气集团有限公司 | Double-sealing water-plugging gas production pipe column and use method thereof |
| 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 |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130424 Termination date: 20211112 |