CN106801590A - A kind of dissolvable slips and bridging plug - Google Patents
A kind of dissolvable slips and bridging plug Download PDFInfo
- Publication number
- CN106801590A CN106801590A CN201710042586.1A CN201710042586A CN106801590A CN 106801590 A CN106801590 A CN 106801590A CN 201710042586 A CN201710042586 A CN 201710042586A CN 106801590 A CN106801590 A CN 106801590A
- Authority
- CN
- China
- Prior art keywords
- slips
- dissolvable
- bridging plug
- slip insert
- main body
- 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.)
- Pending
Links
- 238000003466 welding Methods 0.000 claims abstract description 12
- 239000002195 soluble material Substances 0.000 claims abstract description 11
- 239000000956 alloy Substances 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 7
- 239000002904 solvent Substances 0.000 claims abstract description 7
- 238000005516 engineering process Methods 0.000 claims description 8
- 229910000838 Al alloy Inorganic materials 0.000 claims description 7
- 229910000861 Mg alloy Inorganic materials 0.000 claims description 7
- 239000012266 salt solution Substances 0.000 claims description 3
- 239000002198 insoluble material Substances 0.000 abstract description 8
- 239000000463 material Substances 0.000 description 5
- 238000005553 drilling Methods 0.000 description 4
- 238000004090 dissolution Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 239000003125 aqueous solvent Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices, or the like
- E21B33/134—Bridging plugs
Abstract
The present invention provides a kind of dissolvable slips and bridging plug.The dissolvable slips includes slips main body and slip insert, wherein, the slips main body is made up of soluble material, and the soluble material can be dissolved in response to solvent；The slip insert is made of high strength alloy material, and is welded to slips body surfaces using welding procedure.The present invention can to greatest extent reduce the volume and quality of insoluble material, it is to avoid insoluble material blocks pipeline and is easy to the row of returning, meanwhile, workover cost is saved, increase economic efficiency.
Description
Technical field
The present invention relates to oil well drilling and production technology field, more particularly to a kind of dissolvable slips and bridging plug.
Background technology
Current China's major part oil field has been enter into exploiting stage intermediary and later stages, and oil recovery difficulty is increasing, hole condition is more and more multiple
Miscellaneous, well workover task also becomes more and more heavier；At the same time, the labour intensity of well workover workman is very high, the environmental condition of well workover
Also it is very severe.So, for the labour intensity for improving well workover efficiency, mitigating well workover workman, wellhead equipment mechanization becomes
The Main way of research.
Wherein, during oil and gas well testing, carry out when multiple zone completion, temporary transient interlayer etc. are operated, it is necessary to use bridge blinding point
Layer instrument carries out Oil-gas Separation, for example：Maintenance personal is when testing Oil/gas Well, it is necessary to blocking well head with bridging plug insulates oil
Gas is in case Oil/gas Well oil spout.And slips is an important component in bridging plug, for clamping and hang for go into the well drilling rod, bore
Quickly, the instrument such as power drilling tool, sleeve pipe.
As shown in figure 1, being bridging plug structural representation, bridging plug in the course of the work, is added by bridging plug central tube
Press and heaved so as to set after rubber is pressurized, set after rubber is heaved and well head is set, wherein, upper slipses and lower slipses pass through
Slip insert is fixed on bridging plug, on the one hand prevents from setting in rubber that pressure is excessive to be destroyed, and is on the other hand played fixation and being set
The effect of rubber.
Realize it is of the invention during, inventor find at least there is following technical problem in the prior art：
At present, China's drilling well slips typically uses insoluble slips, this insoluble slips typically to use ferrous material
It is made, the larger slip insert of volume is mounted to immobilising device inside slips by way of punching, this slips is in well workover
After the completion of operation, labor intensive, material resources are larger during releasing slips, sometimes even occur that slips is difficult to the feelings for releasing
Condition, so as to cause whole oil field unavailable.
The content of the invention
A kind of dissolvable slips and bridging plug that the present invention is provided, can to greatest extent reduce the volume of insoluble material, keep away
Exempt from insoluble material and block pipeline, meanwhile, workover cost is saved, increase economic efficiency.
In a first aspect, the present invention provides a kind of dissolvable slips, including slips main body and slip insert, wherein,
The slips main body is made up of soluble material, and the soluble material can be dissolved in response to solvent；
The slip insert is made of high strength alloy material, and is welded to slips body surfaces using welding procedure.
Alternatively, the soluble material is aluminium alloy or magnesium alloy materials.
Alternatively, the solvent is water.
Alternatively, the welding procedure is ion-conductance welding technology or laser welding technology.
Second aspect, the present invention provides a kind of bridging plug, and the bridging plug includes above-mentioned dissolvable slips.
Alternatively, the dissolvable slips is fixed on the bullet of the bridging plug by way of snapping.
Dissolvable slips provided in an embodiment of the present invention and bridging plug, by using the aluminium alloy or magnesium alloy material that are dissolved in water
Material makes slips, and the dissolvable slips is fixed on the bullet of bridging plug, can to greatest extent reduce insoluble material
Volume, it is to avoid insoluble material blocks pipeline, meanwhile, save workover cost, increase economic efficiency.
Brief description of the drawings
Fig. 1 is bridging plug structural representation in the prior art；
Fig. 2 is the structural representation that one embodiment of the invention can dissolve slips.
Specific embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only
Only it is a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill
The every other embodiment that personnel are obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
The present invention provides a kind of slips, as shown in Fig. 2 including slips main body 11 and slip insert 12, wherein,
The slips main body 11 is made up of soluble material, and the soluble material can be dissolved in response to solvent；
The slip insert 12 is made of high strength alloy material, and is welded to the table of slips main body 11 using welding procedure
Face.
Dissolvable slips provided in an embodiment of the present invention and bridging plug, by using the aluminium alloy or magnesium alloy that are dissolved in salt solution
Material makes slips, and the dissolvable slips is fixed on the bullet of bridging plug, can to greatest extent reduce insoluble material
The volume of material, it is to avoid insoluble material blocks pipeline, meanwhile, workover cost is saved, increase economic efficiency.
Alternatively, the soluble material is aluminium alloy or magnesium alloy materials.
Alternatively, the solvent is salt solution.
Specifically, the slips being made up of aluminium alloy or magnesium alloy materials can occur electrochemistry in the aqueous solvent
Reaction, and then the dissolvable slips is dissolved.
Alternatively, the welding procedure is ion-conductance welding technology or laser welding technology.
Specifically, the dissolvable slips can be according to real time needs, by allocating aluminium element in the aluminium alloy
The dissolution velocity different from the ratio acquisition of gallium element and phosphide element.
Specifically, the dissolvable slips can be according to real time needs, by allocating magnesium elements in the magnesium alloy
The dissolution velocity different from the ratio acquisition of Zn-ef ficiency and manganese element.
Alternatively, the quantity of the slip insert determines according to slips pressure-bearing size.
The embodiment of the present invention also provides a kind of bridging plug, and the bridging plug includes above-mentioned dissolvable slips.
Alternatively, the dissolvable slips is fixed on the bullet of the bridging plug by way of snapping.
The above, specific embodiment only of the invention, but protection scope of the present invention is not limited thereto, and it is any
Those familiar with the art the invention discloses technical scope in, the change or replacement that can be readily occurred in, all should
It is included within the scope of the present invention.Therefore, protection scope of the present invention should be defined by scope of the claims.
Claims (7)
1. a kind of dissolvable slips, it is characterised in that including slips main body and slip insert, wherein,
The slips main body is made up of soluble material, and the soluble material can be dissolved in response to solvent；
The slip insert is made of high strength alloy material, and is welded to slips body surfaces using welding procedure.
2. dissolvable slips according to claim 1, it is characterised in that the soluble material is aluminium alloy or magnesium alloy
Material.
3. dissolvable slips according to claim 1, it is characterised in that the solvent is salt solution.
4. dissolvable slips according to claim 1, it is characterised in that the welding procedure is ion-conductance welding technology or swashs
Flush weld connection technology.
5. dissolvable slips according to claim 1, it is characterised in that the quantity of the slip insert is big according to slips pressure-bearing
Small determination.
6. a kind of bridging plug, it is characterised in that the bridging plug includes the dissolvable slips as any one of claim 1 to 5.
7. bridging plug according to claim 6, it is characterised in that the dissolvable slips is fixed on institute by way of snapping
State on the bullet of bridging plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710042586.1A CN106801590A (en) | 2017-01-20 | 2017-01-20 | A kind of dissolvable slips and bridging plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710042586.1A CN106801590A (en) | 2017-01-20 | 2017-01-20 | A kind of dissolvable slips and bridging plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106801590A true CN106801590A (en) | 2017-06-06 |
Family
ID=58987020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710042586.1A Pending CN106801590A (en) | 2017-01-20 | 2017-01-20 | A kind of dissolvable slips and bridging plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106801590A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108222881A (en) * | 2017-11-08 | 2018-06-29 | 中国石油天然气股份有限公司 | Dissolvable bridge plug and its material preparation method |
| CN108868734A (en) * | 2018-04-24 | 2018-11-23 | 中国石油天然气股份有限公司 | Gas well solvable packer multiple fracturing completion integral partial pressure tubular column and method |
| WO2019153905A1 (en) * | 2018-02-09 | 2019-08-15 | 北京中科金腾科技有限公司 | Method for manufacturing soluble slip and soluble slip manufactured by same |
| CN110259412A (en) * | 2019-05-29 | 2019-09-20 | 北京中科金腾科技有限公司 | A method of temporarily stifled oil gas well shaft |
| CN110513074A (en) * | 2019-08-16 | 2019-11-29 | 中国石油集团长城钻探工程有限公司 | Dissolvable bridge plug |
| CN111677488A (en) * | 2020-05-26 | 2020-09-18 | 中国石油化工股份有限公司 | Ball throwing and selecting injection pipe column and ball throwing device |
| CN112943122A (en) * | 2021-01-20 | 2021-06-11 | 中国石油天然气股份有限公司 | Dissolvable support slip, dissolvable metal wellbore switching system and methods of use |
| US11313192B2 (en) | 2017-11-08 | 2022-04-26 | Petrochina Company Ltd. | Method for lowering oil pipe in gas well without well-killing, soluble bridge plug and material preparation method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110048743A1 (en) * | 2004-05-28 | 2011-03-03 | Schlumberger Technology Corporation | Dissolvable bridge plug |
| CN103547766A (en) * | 2011-05-19 | 2014-01-29 | 贝克休斯公司 | Easy drill slip with degradable materials |
| CN103982158A (en) * | 2013-02-12 | 2014-08-13 | 韦特福特/兰姆有限公司 | Downhole tool having slip inserts composed of different materials |
| CN204663479U (en) * | 2015-05-28 | 2015-09-23 | 陕西延长石油(集团)有限责任公司研究院 | A kind of nonmetal easy brill bridging plug |
| CN204782915U (en) * | 2015-06-12 | 2015-11-18 | 吉林市旭峰激光科技有限责任公司 | Dual -grip bridging plug based on metal seal sleeve |
| CN205172471U (en) * | 2015-06-12 | 2016-04-20 | 吉林市旭峰激光科技有限责任公司 | Single deck tape -recorder tile structure of packer |
| CN105756596A (en) * | 2014-12-17 | 2016-07-13 | 中国石油天然气股份有限公司 | Slip structure and bridge plug assembly provided with same |
-
2017
- 2017-01-20 CN CN201710042586.1A patent/CN106801590A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110048743A1 (en) * | 2004-05-28 | 2011-03-03 | Schlumberger Technology Corporation | Dissolvable bridge plug |
| CN103547766A (en) * | 2011-05-19 | 2014-01-29 | 贝克休斯公司 | Easy drill slip with degradable materials |
| CN103982158A (en) * | 2013-02-12 | 2014-08-13 | 韦特福特/兰姆有限公司 | Downhole tool having slip inserts composed of different materials |
| CN105756596A (en) * | 2014-12-17 | 2016-07-13 | 中国石油天然气股份有限公司 | Slip structure and bridge plug assembly provided with same |
| CN204663479U (en) * | 2015-05-28 | 2015-09-23 | 陕西延长石油(集团)有限责任公司研究院 | A kind of nonmetal easy brill bridging plug |
| CN204782915U (en) * | 2015-06-12 | 2015-11-18 | 吉林市旭峰激光科技有限责任公司 | Dual -grip bridging plug based on metal seal sleeve |
| CN205172471U (en) * | 2015-06-12 | 2016-04-20 | 吉林市旭峰激光科技有限责任公司 | Single deck tape -recorder tile structure of packer |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108222881A (en) * | 2017-11-08 | 2018-06-29 | 中国石油天然气股份有限公司 | Dissolvable bridge plug and its material preparation method |
| US11313192B2 (en) | 2017-11-08 | 2022-04-26 | Petrochina Company Ltd. | Method for lowering oil pipe in gas well without well-killing, soluble bridge plug and material preparation method thereof |
| WO2019153905A1 (en) * | 2018-02-09 | 2019-08-15 | 北京中科金腾科技有限公司 | Method for manufacturing soluble slip and soluble slip manufactured by same |
| CN108868734A (en) * | 2018-04-24 | 2018-11-23 | 中国石油天然气股份有限公司 | Gas well solvable packer multiple fracturing completion integral partial pressure tubular column and method |
| CN110259412A (en) * | 2019-05-29 | 2019-09-20 | 北京中科金腾科技有限公司 | A method of temporarily stifled oil gas well shaft |
| CN110513074A (en) * | 2019-08-16 | 2019-11-29 | 中国石油集团长城钻探工程有限公司 | Dissolvable bridge plug |
| CN111677488A (en) * | 2020-05-26 | 2020-09-18 | 中国石油化工股份有限公司 | Ball throwing and selecting injection pipe column and ball throwing device |
| CN112943122A (en) * | 2021-01-20 | 2021-06-11 | 中国石油天然气股份有限公司 | Dissolvable support slip, dissolvable metal wellbore switching system and methods of use |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 124107 Great Wall Drilling and Fracturing Company, Panshan New County Town, Panjin City, Liaoning Province Applicant after: FRACTURING COMPANY OF CNPC GREATWALL DRILLING CO. Applicant after: BEIJING ZHONGKE JINTENG TECHNOLOGY Co.,Ltd. Address before: Zheng Fu Zhuang village 102607 Beijing city Daxing District anding town north 800 meters Applicant before: BEIJING ZHONGKE JINTENG TECHNOLOGY Co.,Ltd. Applicant before: FRACTURING COMPANY OF CNPC GREATWALL DRILLING CO. |
|
| CB02 | Change of applicant information | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20201022 Address after: No. 6, liupukang, Xicheng District, Beijing 100120 Applicant after: CHINA NATIONAL PETROLEUM Corp. Applicant after: CNPC GREATWALL DRILLING Co. Applicant after: BEIJING ZHONGKE JINTENG TECHNOLOGY Co.,Ltd. Address before: 124107 Great Wall Drilling and Fracturing Company, Panshan New County Town, Panjin City, Liaoning Province Applicant before: FRACTURING COMPANY OF CNPC GREATWALL DRILLING Co. Applicant before: BEIJING ZHONGKE JINTENG TECHNOLOGY Co.,Ltd. |
|
| TA01 | Transfer of patent application right | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170606 |
|
| RJ01 | Rejection of invention patent application after publication |