CN1456785A - Selective multi-stage inner pipe cementing process and cemented tubular column there from - Google Patents
Selective multi-stage inner pipe cementing process and cemented tubular column there from Download PDFInfo
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- CN1456785A CN1456785A CN 03112565 CN03112565A CN1456785A CN 1456785 A CN1456785 A CN 1456785A CN 03112565 CN03112565 CN 03112565 CN 03112565 A CN03112565 A CN 03112565A CN 1456785 A CN1456785 A CN 1456785A
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- cementing
- tubing string
- tubular column
- completion tubular
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Abstract
A selective multi-stage cement-filling technology using internal tube column for consolidating well in oil field features that after a tubular column is put to a designed position in finished well, another tubular column for filling cement, which has a cement filling assemblage and is connected with a feeding tubular column, is put in the tubular column for finished well. Under the drive of feeding tubular column, it can be moved to different positions in well for filling cement.
Description
Technical field
The present invention relates to completion technique and equipment, the particularly selectivity interior pipe multistage cementing technology and the cementing tubing string thereof of petroleum industry, be applicable to the cementing well operation of various wells.
Technical background
In the drilling engineering of petroleum industry, the completion cementing technology be will bore open hole well cementing sealing form can following development equipment well, cementing operation is to be lowered to sleeve pipe in the well of having bored, the cement paste that configures is injected into the annular space of well and sleeve pipe, wait and coagulate, form a firm cement sheath.It mainly acts on is packing oil, gas, water layer, stops the mutual channelling of ground interlayer fluid, the protection producing zone; Packing severe leakage layer or other bad ground such as cave in; Supporting sleeve and prevent the corrosion of underground fluid to sleeve pipe.The quality of cementing quality directly has influence on follow-up petroleum production engineering and oil recovery factor.And, how when guaranteeing cementing quality, can effectively protect oil-gas Layer again for the well that comprises a plurality of oil reservoirs in a bite well, and reduce production costs and working strength of workers, be the emphasis of completion cementing technology research always.Traditional stage cementing job practices be outside sleeve pipe according to the quantity of oil reservoir, sizing collar is installed respectively, with the cement paste that configures by drilling rod and the injection of following parts casing pipe and on return the annular space of well and sleeve pipe.Close or open the sizing collar injection cement of each oil reservoir by dropping into plug, wait and coagulate, form cement sheath.On March 3rd, 1998, Fuller M.S. has delivered one piece and has been entitled as the article of " Innovative Way to Cement a Liner Utilizing a New Inner StringLiner Cementing Process " on the IADC/SPE Drilling Conf. 501-504 of Dallas page or leaf, its translation is " utilizing the fixedly innovative method of bushing pipe of novel inner-string cementing technology ", a kind of inner-string cementing tubing string is disclosed, connect interior pipe with drilling rod, by in sleeve pipe, transferring interior pipe, the grout volume that can accurate Calculation need inject, do not stay cement plug in the sleeve pipe, and can clean and cycle operation.But this tubing string do not realize the layer and section multistage cementing and oil-gas Layer effectively protected, and the completion of high pressure zone or lost-circulation zone is not proposed good solution.
Summary of the invention
The objective of the invention is to design and a kind ofly can protect oil-gas Layer; pipe multistage cementing technology and cementing tubing string thereof in reliable in quality, the easy to operate selectivity; to overcome and to avoid the shortcoming and defect of above-mentioned prior art, reduce production costs, guarantee cementing quality.
The present technique solution can reach above-mentioned purpose:
Pipe multistage cementing technology in the selectivity, be used for cementing operation, in completion tubular column, be lowered to the cementing of cementing tubing string, at first completion tubular column is suspended on the outer sleeve, with the cementing tubing string with send into tubing string and completion tubular column and break away from, the cementing tubing string with send into the tubing string maintenance and be connected and seal; Or be lowered to completion tubular column earlier to design attitude, again the cementing tubing string is lowered in the completion tubular column with sending into tubing string, the cementing tubing string with send into tubing string and keep being connected and sealing.The cementing tubing string is provided with the cementing assembly, drags cementing tubing string mobile stage cementing that carries out in completion tubular column with sending into tubing string.
Be used for the tubing string of pipe multistage cementing technology in the selectivity, comprise cementing tubing string and completion tubular column, the cementing tubing string has interior pipe, the cementing tubing string also is provided with the cementing assembly, completion tubular column is provided with circulating valve, with the cementing tubing string with send into tubing string and be connected, be lowered in the completion tubular column.
Use the present invention's well cementation to have following significant advantage; the present invention can be according to oil reservoir situation and field requirement; the cemented interval of needs is carried out the cementing sealing; do not need cemented interval not contact with cement; thereby protected oil-gas Layer; improve the degree of perfection of oil reservoir, really realized purpose targeted, subsection water injection mud.Can carry out the specific aim well cementation to high pressure zone and lost-circulation zone especially, solve conventional cementing and common inner-string cementing technology high pressure zone and lost-circulation zone are difficult to the effectively purpose of well cementation.Stage cementing with routine is compared with inner-string cementing, has to need not to bore plug, not polluted reservoir, characteristics such as site operation is workable, sealing is firm, preferably resolves the contradictory problems of well cementation and oil layer protection, has improved effect of reservoir development.Owing to possess above-mentioned effect and advantage, thereby reduced cost of production and working strength of workers.
Description of drawings
Accompanying drawing is installation, the utilization structure schematic diagram of cementing tubing string of the present invention.
The specific embodiment
Below in conjunction with drawings and Examples the present invention is done further detailed description: referring to accompanying drawing, pipe multistage cementing technology in the selectivity, be used for cementing operation, in completion tubular column, be lowered to the cementing of cementing tubing string, at first completion tubular column is suspended on the outer sleeve, with the cementing tubing string with send into tubing string 2 and break away from completion tubular column, cementing tubing string and send into tubing string 2 maintenances and be connected and seal; Or be lowered to completion tubular column earlier to design attitude, again the cementing tubing string is lowered in the completion tubular column with sending into tubing string 2, the cementing tubing string with send into tubing string 2 and keep being connected and sealing.Make the cementing tubing string and send into tubing string 2 and become airtight tubing string.The cementing tubing string is provided with the cementing assembly, drags cementing tubing string mobile stage cementing that carries out in completion tubular column with sending into tubing string 2.The cementing assembly of cementing tubing string is provided with locating closing mechanism 15, can make corresponding packer or the sizing collar that needs the cementing interval of cementing assembly, in the cementing tubing string, add hydraulic pressure, cementing tubing string seat in completion tubular column is sealed and the relative completion tubular column of cementing assembly is formed to seal.In the cementing of completion tubular column internal classification, is cementing from bottom to top with the cementing tubing string, annotates the cement sheath of the bottom earlier.Be used for the tubing string of pipe multistage cementing technology in the selectivity, comprise cementing tubing string and completion tubular column, pipe 7 in the cementing tubing string has, the cementing tubing string also is provided with the cementing assembly, completion tubular column is provided with circulating valve 18, with the cementing tubing string with send into tubing string 2 and be connected, be lowered in the completion tubular column.Completion tubular column comprises down parts casing pipe 6, packer 16,19 and 20, sizing collar 17 and 21 and circulating valve 18.Packer 16, sizing collar 17, circulating valve 18, packer 19 are linked in sequence from bottom to top in the outside of following parts casing pipe 6; Packer 20 and sizing collar 21 are connected the inside of upper sleeve 1 from bottom to top.Packer 16 and sizing collar 17 are installed in the bottom position of interlayer 9, and circulating valve 18 and packer 19 are installed in the upper position of interlayer 9.Pipe 7 in the cementing tubing string comprises, cementing assembly and extremely stifled 12, the bottom of pipe 7 in the cementing assembly is connected, extremely stifled 12 be connected in the bottom of pipe 7.The cementing assembly is made up of sealing mechanism 13, locating closing mechanism 15 and cement injecting mechanism 14, and with said mechanism tube connector connection, cement injecting mechanism 14 is provided with injection hole.The sealing mechanism 13 of cementing assembly is made up of last sealing mechanism and lower seal mechanism, and the installation distending direction of fluid sealant spare is relative.
Embodiment:
In drilling process, after upper sleeve 1 is finished, get out well 4, bore and meet portion's oil reservoir 8, interlayer 9 and bottom oil reservoir 10.At first be lowered to completion tubular column, to descend parts casing pipe 6, packer 16, sizing collar 17, circulating valve 18, packer 19, packer 20 and sizing collar 21 to be linked in sequence, be lowered to the cementing tubing string then, dead stifled 12, cementing assembly and interior pipe 7 are linked in sequence, be lowered in the completion tubular column, be connected jointly at last on the hanger 3, arrive design attitude 2 times with sending into tubing string.Or be lowered to completion tubular column earlier to design attitude, again the cementing tubing string is lowered in the completion tubular column with sending into tubing string 2, the cementing tubing string with send into tubing string and keep being connected and sealing.Ground adds hydraulic pressure from sending into tubing string 2, and hanger 3 is hung, and extremely stifled 12, cementing assembly, interior pipe 7 break away from hanger 3, but top also is connected and sends on the tubing string 2 and keep sealing.On submit into tubing string 2, from the bottom up, the cementing assembly is positioned at the position of packer 16, packer 19 and packer 20 respectively, and expands, the annular space of sealing well 4 and following parts casing pipe 6 with the mode that adds hydraulic pressure.Transfer once more and send into tubing string 2, checkmate stifled 12 and the cementing assembly be positioned on the sizing collar 17.Add hydraulic pressure from sending into tubing string 2, open sizing collar 17 and circulating valve 18, cement paste is by sending into tubing string 2, interior pipe 7, cement injecting mechanism 14, sizing collar 17, and the annular space that enters down parts casing pipe 6 and well 4 is up, by circulating valve 18, the annular space of pipe 7 and following parts casing pipe 6 is up in entering.Transfer and send into tubing string 2, utilize the locating closing mechanism 15 of cementing assembly to close sizing collar 17.Well-flushing is washed till ground with unnecessary cement paste, waits and coagulates, and forms cement sheath 5.On submit into tubing string 2, checkmate stifled 12 and the cementing assembly be positioned on the sizing collar 21, add hydraulic pressure from sending into tubing string 2, open sizing collar 21.Cement paste is by sending into tubing string 2, interior pipe 7, cement injecting mechanism 14, sizing collar 21, and the annular space that enters upper sleeve 1 and following parts casing pipe 6 is up.Transfer and send into tubing string 2, utilize locating closing mechanism 15 to close sizing collar 21.Well-flushing is washed till ground with unnecessary cement paste, waits and coagulates, and forms cement sheath 22.At last, will send into tubing string 2, interior pipe 7, cementing assembly and extremely stifled 12 trip out completion.At top oil reservoir 8 and bottom oil reservoir 10 perforations, stay preforation tunnel 11, link up oil flow channel, go into operation.
Claims (8)
1, pipe multistage cementing technology in the selectivity, be used for cementing operation, in completion tubular column, be lowered to the cementing of cementing tubing string, at first completion tubular column is suspended on the outer sleeve, with the cementing tubing string with send into tubing string (2) and completion tubular column and break away from, cementing tubing string and send into tubing string (2) maintenance and be connected and seal; Or be lowered to completion tubular column earlier to design attitude, again the cementing tubing string is lowered in the completion tubular column with sending into tubing string (2), the cementing tubing string with send into tubing string (2) and keep being connected and sealing, it is characterized in that the cementing tubing string is provided with the cementing assembly, drag cementing tubing string mobile stage cementing that carries out in completion tubular column with sending into tubing string (2).
2, pipe multistage cementing technology in the selectivity according to claim 1 and 2, the cementing assembly that it is characterized in that the cementing tubing string is provided with locating closing mechanism (15), make corresponding packer or the sizing collar that needs the cementing interval of cementing assembly, in the cementing tubing string, add hydraulic pressure, cementing tubing string seat in completion tubular column is sealed and the relative completion tubular column of cementing assembly is formed to seal.
3, pipe multistage cementing technology in the selectivity according to claim 1 and 2 is characterized in that using the cementing tubing string in the cementing of completion tubular column internal classification, is cementing from bottom to top, annotates the cement sheath of the bottom earlier.
4, the tubing string that is used for pipe multistage cementing technology in the above-mentioned selectivity, comprise cementing tubing string and completion tubular column, the cementing tubing string has interior pipe (7), it is characterized in that the cementing tubing string also is provided with the cementing assembly, completion tubular column is provided with circulating valve (18), with the cementing tubing string with send into tubing string (2) and be connected, be lowered in the completion tubular column.
5, the tubing string of pipe multistage cementing technology in the selectivity according to claim 4, it is characterized in that completion tubular column comprises parts casing pipe (6) down, packer (16), (19) and (20), sizing collar (17) and (21) and circulating valve (18) are linked in sequence packer (16), sizing collar (17), circulating valve (18), packer (19) in the outside of following parts casing pipe (6) from bottom to top; Packer (20) and sizing collar (21) are connected the inside of upper sleeve (1) from bottom to top; Packer (16) and sizing collar (17) are installed in the bottom position of interlayer (9), and circulating valve (18) and packer (19) are installed in the upper position of interlayer (9).
6, the tubing string of pipe multistage cementing technology in the selectivity according to claim 4, it is characterized in that the cementing tubing string comprises interior pipe (7), cementing assembly and dead stifled (12), the cementing assembly is connected the bottom of interior pipe (7), and dead stifled (12) are connected the bottom of interior pipe (7).
7, the tubing string of pipe multistage cementing technology in the selectivity according to claim 6, it is characterized in that the cementing assembly is made up of sealing mechanism (13), locating closing mechanism (15) and cement injecting mechanism (14), with said mechanism tube connector connection, cement injecting mechanism (14) is provided with injection hole.
8, the tubing string of pipe multistage cementing technology in the selectivity according to claim 7 is characterized in that the sealing mechanism (13) of cementing assembly is made up of last sealing mechanism and lower seal mechanism, and the installation distending direction of fluid sealant spare is relative.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03112565 CN1456785A (en) | 2003-05-30 | 2003-05-30 | Selective multi-stage inner pipe cementing process and cemented tubular column there from |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03112565 CN1456785A (en) | 2003-05-30 | 2003-05-30 | Selective multi-stage inner pipe cementing process and cemented tubular column there from |
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| CN1456785A true CN1456785A (en) | 2003-11-19 |
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| CN 03112565 Pending CN1456785A (en) | 2003-05-30 | 2003-05-30 | Selective multi-stage inner pipe cementing process and cemented tubular column there from |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975041A (en) * | 2010-10-13 | 2011-02-16 | 中国石油集团钻井工程技术研究院 | Well cementing method around coal bed and device thereof |
| CN101307679B (en) * | 2008-04-15 | 2012-06-27 | 中国石化集团胜利石油管理局石油开发中心 | Thin interlayer steam injection thermal production well mixing-proof well completion process |
| CN102635335A (en) * | 2012-04-09 | 2012-08-15 | 中国石油大学(华东) | Well structure for delaying casing damage on fault |
| CN102691492A (en) * | 2012-05-30 | 2012-09-26 | 西南石油大学 | System and process of screen pipe completion and cross oil layer cementing for steam injection heavy oil well |
| CN108979583A (en) * | 2018-07-12 | 2018-12-11 | 马弘毅 | A kind of sidetracked hole layer and section cementing unit and application method |
| CN109281637A (en) * | 2018-10-17 | 2019-01-29 | 中石化石油工程技术服务有限公司 | A kind of cementing method suitable for leakiness ultradeep well |
| CN110905441A (en) * | 2018-09-17 | 2020-03-24 | 中国石油化工股份有限公司 | Well cementation method of low-pressure easy-to-leak well and casing string |
| CN110984900A (en) * | 2019-12-09 | 2020-04-10 | 北京慧坤科技有限公司 | Device and method for stopping water in drilling |
| CN111101886A (en) * | 2018-10-25 | 2020-05-05 | 中国石油化工股份有限公司 | Sectional well cementing tool and technological method |
| CN115596395A (en) * | 2021-07-08 | 2023-01-13 | 中国石油天然气股份有限公司（Cn） | Safe abandoned well plugging method |
-
2003
- 2003-05-30 CN CN 03112565 patent/CN1456785A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101307679B (en) * | 2008-04-15 | 2012-06-27 | 中国石化集团胜利石油管理局石油开发中心 | Thin interlayer steam injection thermal production well mixing-proof well completion process |
| CN101975041A (en) * | 2010-10-13 | 2011-02-16 | 中国石油集团钻井工程技术研究院 | Well cementing method around coal bed and device thereof |
| CN101975041B (en) * | 2010-10-13 | 2013-03-20 | 中国石油集团钻井工程技术研究院 | Well cementing method for avoiding coal bed and device thereof |
| CN102635335B (en) * | 2012-04-09 | 2016-06-08 | 中国石油大学(华东) | A kind of casing programme delaying tomography place set to damage |
| CN102635335A (en) * | 2012-04-09 | 2012-08-15 | 中国石油大学(华东) | Well structure for delaying casing damage on fault |
| CN102691492A (en) * | 2012-05-30 | 2012-09-26 | 西南石油大学 | System and process of screen pipe completion and cross oil layer cementing for steam injection heavy oil well |
| CN102691492B (en) * | 2012-05-30 | 2014-06-11 | 西南石油大学 | System and process of screen pipe completion and cross oil layer cementing for steam injection heavy oil well |
| CN108979583A (en) * | 2018-07-12 | 2018-12-11 | 马弘毅 | A kind of sidetracked hole layer and section cementing unit and application method |
| CN108979583B (en) * | 2018-07-12 | 2020-11-17 | 福州宇卓科技有限公司 | Sidetracking well layering and segmenting cementing device and using method |
| CN110905441A (en) * | 2018-09-17 | 2020-03-24 | 中国石油化工股份有限公司 | Well cementation method of low-pressure easy-to-leak well and casing string |
| CN109281637A (en) * | 2018-10-17 | 2019-01-29 | 中石化石油工程技术服务有限公司 | A kind of cementing method suitable for leakiness ultradeep well |
| CN111101886A (en) * | 2018-10-25 | 2020-05-05 | 中国石油化工股份有限公司 | Sectional well cementing tool and technological method |
| CN111101886B (en) * | 2018-10-25 | 2023-08-04 | 中国石油化工股份有限公司 | Sectional well cementation tool and process method |
| CN110984900A (en) * | 2019-12-09 | 2020-04-10 | 北京慧坤科技有限公司 | Device and method for stopping water in drilling |
| CN115596395A (en) * | 2021-07-08 | 2023-01-13 | 中国石油天然气股份有限公司（Cn） | Safe abandoned well plugging method |
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