CN204457595U - Oil pipe bridge plug - Google Patents
Oil pipe bridge plug Download PDFInfo
- Publication number
- CN204457595U CN204457595U CN201420802121.3U CN201420802121U CN204457595U CN 204457595 U CN204457595 U CN 204457595U CN 201420802121 U CN201420802121 U CN 201420802121U CN 204457595 U CN204457595 U CN 204457595U
- Authority
- CN
- China
- Prior art keywords
- bridge plug
- oil
- dissolvable
- central tube
- plug part
- 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
Links
- 239000010458 rotten stone Substances 0.000 claims description 11
- 230000007423 decrease Effects 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract description 16
- 238000000034 method Methods 0.000 abstract description 8
- 239000007788 liquid Substances 0.000 description 14
- 239000000463 material Substances 0.000 description 12
- 239000000243 solution Substances 0.000 description 11
- 238000007789 sealing Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 239000002253 acid Substances 0.000 description 6
- 238000004090 dissolution Methods 0.000 description 6
- 229920002239 polyacrylonitrile Polymers 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000004744 fabric Substances 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 238000005086 pumping Methods 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 239000004593 Epoxy Substances 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 238000000638 solvent extraction Methods 0.000 description 3
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- XQCFHQBGMWUEMY-ZPUQHVIOSA-N Nitrovin Chemical compound C=1C=C([N+]([O-])=O)OC=1\C=C\C(=NNC(=N)N)\C=C\C1=CC=C([N+]([O-])=O)O1 XQCFHQBGMWUEMY-ZPUQHVIOSA-N 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 235000013824 polyphenols Nutrition 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000002195 soluble material Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000002734 clay mineral Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 229920003986 novolac Polymers 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model discloses an oil pipe bridge plug, which comprises a bridge plug body and a dissolvable bridge plug piece positioned in the bridge plug body; the dissolvable bridge plug piece is arranged in the bridge plug body and used for plugging the central tube of the bridge plug body. The utility model provides an oil pipe bridging plug, because the shutoff the dissolvable bridging plug of bridging plug body center tube is dissolvable, so when needs are relieved the bridging plug, do not need extra process to bore the bridging plug specially and get in order to relieve the bridging plug to can shorten construction cycle, raise the efficiency.
Description
Technical field
The utility model embodiment relates to the downhole tool technology of Oil/gas Well Application and Development, particularly relates to a kind of oil-pipe bridge plug.
Background technology
In Oil/gas Well exploration and development, pressure break improves one of area, Oil/gas Well shaft bottom payzone permeability major measure realizing increasing yield and injection, in Oil/gas Well exploration and development, pressure break improves one of area, Oil/gas Well shaft bottom payzone permeability major measure realizing increasing yield and injection, bridging plug at present in Oil/gas Well cased hole completion staged fracturing mainly contains detachable bridge plug, drillable bridge is matched, the types such as compound rapid drilling type bridging plug, these bridging plugs are due to himself structure and problem of materials, all need follow-up to drill through technique after the transformation of cased hole completion staged fracturing, can not directly completion go into operation, add the drilling operation after casing section pressing crack construction technique, cause long construction period.
Utility model content
The utility model provides a kind of oil-pipe bridge plug, in order to solve in oil gas well mining, needs to drill through to remove bridging plug to bridging plug, causes the defect of long construction period.
The utility model provides a kind of oil-pipe bridge plug, comprising:
Bridging plug body;
Be arranged in the dissolvable bridge plug part of described bridging plug body, described dissolvable bridge plug part is arranged in described bridging plug body, and described dissolvable bridge plug part is used for the central tube of bridging plug body described in shutoff.
Preferably, described dissolvable bridge plug part is made up of tripoli.
Preferably, described dissolvable bridge plug part is spherical.
Preferably, described dissolvable bridge plug part is cylindric.
Preferably, the diameter of described central tube is 50-62 millimeter.
Preferably, described central tube comprises the internal diameter tube that interior diameter successively decreases, and described dissolvable bridge plug part is stuck in described internal diameter tube.
Preferably, the maximum inner diameter of described internal diameter tube and the difference of minimum interior diameter are 5-10 millimeter.
Preferably, described central tube is made up of composite material.
Preferably, described bridging plug body also comprises: the top connection be connected with described central tube and lower contact.
The utility model provides a kind of oil-pipe bridge plug, by being arranged in the dissolvable bridge plug part of described bridging plug body, carry out the central tube of bridging plug body described in shutoff, because dissolvable bridge plug is soluble, so when needs are removed bridging plug, do not need extra operation to drill through to remove bridging plug to bridging plug specially, thus can construction period be shortened, raise the efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of the oil-pipe bridge plug according to the utility model embodiment one;
Fig. 2 is the sectional drawing of the dissolvable bridge plug part according to the utility model embodiment three;
Fig. 3 is the stereogram of the dissolvable bridge plug part according to the utility model embodiment four;
Fig. 4 is a kind of structural representation of the central tube according to the utility model embodiment six;
Fig. 5 is another structural representation of the central tube according to the utility model embodiment six;
Fig. 6 is the structural representation of the oil-pipe bridge plug according to the utility model embodiment eight.
Detailed description of the invention
For making the object of the utility model embodiment, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Embodiment one
The oil-pipe bridge plug that the utility model provides can be used in Oil/gas Well exploration and development, but is not limited to this.
Fig. 1 is the structural representation of the oil-pipe bridge plug according to the utility model embodiment one, and as shown in Figure 1, the oil-pipe bridge plug that the utility model provides comprises: bridging plug body 1 and dissolvable bridge plug part 2.
Wherein, dissolvable bridge plug part 2 is arranged in bridging plug body 1, and dissolvable bridge plug part 2 is for the central tube 3 of blocked bridge plug body 1.
Concrete, in Oil/gas Well staged fracturing process, the bridging plug body 1 provided by the utility model is connected with electric cable bridge plug perforation tool, rely on the strength of gravity or liquid pumping that bridging plug body 1 is pumped into assigned address together with electric cable bridge plug perforation tool, bridging plug body 1 to be set on sleeve pipe and perforation by electric cable bridge plug setting tool, drop in Oil/gas Well by the dissolvable bridge plug part 2 of bridging plug body 1 before pressing crack construction, dissolvable bridge plug part 2 can drop in the central tube 3 of bridging plug body 1.
The oil-pipe bridge plug that the present embodiment provides, by the central tube 3 of dissolvable bridge plug part 2 blocked bridge plug body 1, thus realize the effect of fluid partitioning in staged fracturing, due to dissolvable bridge plug part 2 can meet the solution such as water, acid after rapidly-soluble characteristic, after staged fracturing has been constructed, do not needed to drill through oil-pipe bridge plug, dissolvable bridge plug part 2 meeting automatic dissolving, thus make the central tube 3 of oil-pipe bridge plug unimpeded, and then realize Oil/gas Well and go into operation fast, shorten construction period.
Embodiment two
The present embodiment is the supplementary notes of carrying out on the basis of above-described embodiment, and preferably, dissolvable bridge plug part 2 is made up of tripoli.Because dissolvable bridge plug part 2 needs to meet shutoff central tube 3 and degradation function automatically in the given time, such as, so dissolvable bridge plug part 2 preferably adopts the degradation material with certain sealing function to make, tripoli etc. simultaneously.Because the granularity of tripoli is very thin, and containing certain clay mineral, wherein the comparision contents of alumina is high, and has certain caking property and plasticity, therefore, utilize tripoli can ensure that it has good sealing to make dissolvable bridge plug part 2, make central tube 3 by abundant shutoff, thus the liquid at oil-pipe bridge plug two ends is completely isolated, ensure construction effect, plasticity in addition due to tripoli is strong, when being made into dissolvable bridge plug part 2, can simplify complex manufacturing technology degree.
Alternatively, dissolvable bridge plug part 2 can also be aluminum.Because the material making dissolvable bridge plug part 2 is different, the speed be dissolved in the liquid such as water, acid is also different, the material making dissolvable bridge plug part 2 can be selected according to actual conditions, as dissolvable bridge plug part 2 needs to dissolve completely in 24 hours, can be different with needing to dissolve complete used material in 48 hours.
The oil-pipe bridge plug that the present embodiment provides, tripoli is utilized to manufacture dissolvable bridge plug part 2, granularity due to tripoli is very thin and have certain caking property, therefore the dissolvable bridge plug part 2 be made can be made to have good sealing, abundant shutoff central tube 3, thus the liquid at oil-pipe bridge plug two ends is completely isolated.Because the main component in tripoli is, alumina is dissolvable in water in acid solution, and containing acid solution in the liquid of oil-pipe bridge plug isolation, therefore, after construction completes, the dissolvable bridge plug part 2 made of tripoli can automatic dissolving, ensure central tube 3 unimpeded, make Oil/gas Well can anti-drain body fast, prevent liquid blocking stratum, and then realize Oil/gas Well and go into operation fast, shorten construction period.
Embodiment three
The present embodiment is the supplementary notes of carrying out on the basis of above-described embodiment, and preferably, dissolvable bridge plug part 2 is in spherical.
Concrete, in Oil/gas Well staged fracturing process, dissolvable bridge plug part 2 and bridging plug body 1 are separated, first bridging plug body 1 is connected with electric cable bridge plug perforation tool, rely on the strength of gravity or liquid pumping that bridging plug body 1 is pumped into assigned address together with electric cable bridge plug perforation tool, bridging plug body 1 to be set on sleeve pipe and perforation by electric cable bridge plug setting tool, before pressing crack construction, the dissolvable bridge plug part 2 of bridging plug body 1 is dropped in Oil/gas Well, dissolvable bridge plug part 2 can drop in central tube 3, because dissolvable bridge plug part 2 is in spherical, can Free-rolling, and the shape of each angle is identical, so when throwing in Oil/gas Well, extra aid is not needed to be sent into assigned address, and its placed angle is set, therefore, decrease workload when dissolvable bridge plug part 2 is thrown in, improve operating efficiency.
Alternatively, dissolvable bridge plug part 2 also can be arranged to georama, concrete, and dissolvable bridge plug part 2 is arranged to georama, while meeting shutoff central tube 3, can also material be saved, in addition, the dissolvable bridge plug part 2 consoluet time also can be made to shorten, ensure the unimpeded of central tube 3 as early as possible, make Oil/gas Well can anti-drain body fast, prevent liquid from blocking stratum, and then realize Oil/gas Well and go into operation fast.
Alternatively, dissolvable bridge plug part 2 also can be arranged to solid ball, Fig. 2 is the sectional drawing of the dissolvable bridge plug part according to the utility model embodiment three, as shown in Figure 2, this solid ball is made up of two parts, Part I is little ball 21, and Part II is be wrapped in the georama 22 outside this little ball 21, and wherein little ball 21 external surface contacts completely with georama 22 inner surface.Little ball 21 and georama 22 can use different soluble material to make, but the material of sealing effectiveness shortcoming fast for dissolution velocity, can be used to make little ball 21 part, for there is good sealing property but the slow material of dissolution velocity, can be used to make this georama 22 part, because georama 22 contacts with the inclined-plane 31 of central tube 3, the sealing that georama is good can make central tube 3 completely by shutoff, thus the liquid at oil-pipe bridge plug two ends is completely isolated, ensure construction effect.After pressure break completes, dissolvable bridge plug part 2 needs to dissolve as early as possible, after georama 22 dissolves, because little ball 21 is made up of the material that dissolution velocity is fast, so little ball 21 can dissolve in a short period of time, thus ensure dissolvable bridge plug part 22 rapid solution at short notice, make Oil/gas Well can anti-drain body fast, and then realize Oil/gas Well and go into operation fast.
The oil-pipe bridge plug that the present embodiment provides, dissolvable bridge plug part 2 is made spherical, due in spherical can Free-rolling, and the shape of each angle is identical, so when throwing in Oil/gas Well, sent into assigned address without the need to extra aid, and its placed angle is set, therefore, decrease workload when dissolvable bridge plug part 2 is thrown in, improve operating efficiency.
Embodiment four
The present embodiment is the supplementary notes of carrying out on the basis of above-described embodiment one and embodiment two, and preferably, dissolvable bridge plug part 2 is cylindric.
Concrete, in Oil/gas Well staged fracturing process, dissolvable bridge plug part 2 and bridging plug body 1 are separated, first bridging plug body 1 is connected with electric cable bridge plug perforation tool, rely on the strength of gravity or liquid pumping that bridging plug body 1 is pumped into assigned address together with electric cable bridge plug perforation tool, bridging plug body 1 to be set on sleeve pipe and perforation by electric cable bridge plug setting tool, drop in Oil/gas Well by the dissolvable bridge plug part 2 of bridging plug body 1 before pressing crack construction, dissolvable bridge plug part 2 can drop in central tube 3.Because dissolvable bridge plug part 2 is in cylindric, so need position when calculating placement and angle when throwing in, just can fall in central tube 3 with dissolvable bridge plug part 2 after making input, or use extra aid to be sent in central tube 3 by dissolvable bridge plug part 2.
When the diameter of dissolvable bridge plug part 2 should be set to put into central tube 3, just shutoff central tube 3, due to the length of dissolvable bridge plug part 2 can be suitable lengthening, so when shutoff central tube 3, the length of dissolvable bridge plug part 2 can be lengthened according to actual conditions, thus obtain better plugging effect, make shutoff tighter.
Alternatively, dissolvable bridge plug part 2 also can be arranged to the cylinder be made up of inside and outside two parts, Fig. 3 is the stereogram of the dissolvable bridge plug part according to the utility model embodiment four, as shown in Figure 3, dissolvable bridge plug part 2 two parts are formed, Part I is small cylinder 23, and Part II is be wrapped in the hollow cylinder 24 outside this small cylinder 23, and wherein small cylinder 23 external surface tightly contacts with hollow cylinder 24 inner surface.Small cylinder 23 and hollow cylinder 24 can use different soluble material to make, but the material of sealing effectiveness shortcoming fast for dissolution velocity, can be used to make small cylinder 23 part, for there is good sealing property but the slow material of dissolution velocity, can be used to make this hollow cylinder 24 part, because hollow cylinder 24 contacts with central tube 3, hollow cylinder 24 can make central tube 3 completely by shutoff, thus the liquid at oil-pipe bridge plug two ends is completely isolated, ensure construction effect.After pressure break completes, dissolvable bridge plug part 2 needs to dissolve as early as possible, after hollow cylinder 24 dissolves, because small cylinder 23 is made up of the material that dissolution velocity is fast, so small cylinder 23 can dissolve in a short period of time, thus ensure dissolvable bridge plug part 2 rapid solution at short notice, make Oil/gas Well can anti-drain body fast, and then realize Oil/gas Well and go into operation fast.
The oil-pipe bridge plug that the present embodiment provides, dissolvable bridge plug part 2 is made cylindric, make the lengthening that the length of dissolvable bridge plug part 2 can be suitable, so when shutoff central tube 3, the length of dissolvable bridge plug part 2 can be lengthened according to actual conditions, to obtain better plugging effect, make shutoff tighter.Alternatively, dissolvable bridge plug part 2 can also make other shapes, such as taper shape or elliposoidal etc.
Embodiment five
The present embodiment is the supplementary notes of carrying out on the basis of above-described embodiment, and preferably, the diameter of central tube 3 can be set to 50-62 millimeter.
Concrete, after dissolvable bridge plug part 2 dissolves, central tube 3 can become unimpeded, and the diameter of central tube 3 is set to 50-62 millimeter, can accelerate the speed that anti-drain body is discharged, realize Oil/gas Well and go into operation fast, shortens construction period.
Optionally, the diameter of central tube 3 can also be arranged in conjunction with actual conditions, to ensure that anti-drain body can flow out fast.
The oil-pipe bridge plug that the present embodiment provides, is set to 50-62 millimeter by central tube 3, can accelerate the speed that anti-drain body is discharged, realize Oil/gas Well and go into operation fast, shortens construction period.
Embodiment six
The present embodiment is the supplementary notes of carrying out on the basis of above-described embodiment three, and further, central tube 3 comprises the internal diameter tube that interior diameter successively decreases, and dissolvable bridge plug part 2 is stuck in internal diameter tube.In the present embodiment, interior diameter successively decreases the diameter of internal diameter tube of the one end referred near oil-pipe bridge plug top than large away from the diameter of the internal diameter tube of one end of oil-pipe bridge plug.Fig. 4 is a kind of structural representation of the central tube according to the utility model embodiment six, as shown in Figure 4, the upper end 32 of central tube is larger than the interior diameter of lower end 33, inclined-plane 31 connects upper end 32 and lower end 33, wherein, upper end 32 and lower end 33 belong to the different internal diameter tube of interior diameter, and inclined-plane 31 both can belong to a part for upper end 32, also can belong to a part for lower end 33.Dissolvable bridge plug part 2 enters from the upper end 32 of central tube, because dissolvable bridge plug part 2 is in spherical, and the upper end 32 of central tube 3 is larger than the diameter of lower end 33, so dissolvable bridge plug part 2 can be stuck on inclined-plane 31, thus central tube 3 is closed, realize the effect of fluid partitioning in staged fracturing.After staged fracturing has been constructed, because dissolvable bridge plug part 2 can meet rapid solution after the solution such as water, acid, and containing the solution such as water, acid in the liquid of oil-pipe bridge plug isolation, dissolvable bridge plug part 2 and these liquid directly contact, so dissolvable bridge plug part 2 can rapid solution, after dissolvable bridge plug part 2 dissolves, the central tube 3 of oil-pipe bridge plug becomes unobstructed, make Oil/gas Well can anti-drain body fast, prevent liquid from blocking stratum, and then realize Oil/gas Well and go into operation fast.
Further, the maximum inner diameter of internal diameter tube and the difference of minimum interior diameter are 5-10 millimeter., make the slope on inclined-plane 31 remain in certain scope, while dissolvable bridge plug part 2 can be made steadily to be stuck on inclined-plane 31, good sealing can also be kept.
Further, Fig. 5 is another structural representation of the central tube according to the utility model embodiment six, as shown in Figure 5, central tube 3 comprises upper end 35, lower end 36 and bottom part 34, wherein, upper end 32 and lower end 33 belong to the different internal diameter tube of interior diameter, bottom part 34 is the bottom of upper end 35, the structure of this central tube 3 is equally applicable to dissolvable bridge plug part 2 in spherical situation, in addition, the structure of this central tube 3 is also applicable to the cylindrical situation of dissolvable bridge plug part 2, dissolvable bridge plug part 2 is blocked by bottom part 34, thus the upper end 35 of shutoff central tube 3, realize the effect of fluid partitioning in staged fracturing.
Embodiment seven
Further, on the basis of above-described embodiment, central tube is made up of composite material, composite material mainly comprises polyacrylonitrile carbon cloth/epoxy novolac prepreg cloth, polyacrylonitrile carbon cloth/epoxy resin, short silk/the epoxy phenolics of polyacrylonitrile carbon fiber, metal insert and the short silk/epoxy phenolics of polyacrylonitrile carbon fiber, polyacrylonitrile carbon cloth/epoxy resin.Under the condition meeting intensity, the lighter weight of oil-pipe bridge plug can be ensured, reduce the manpower consumption in handling process.
Embodiment eight
Further, on the basis of above-described embodiment, Fig. 6 is the structural representation of the oil-pipe bridge plug according to the utility model embodiment eight, as shown in Figure 6, bridging plug body 1 also comprises: top connection 4 and lower contact 5, wherein the lower end of top connection 4 connects the upper end 32 of central tube 3 by external screw thread, and the lower end 33 of central tube 3 is connected with lower contact 5 by external screw thread.The upper end of top connection 4 is connected in lower going-into-well with special setting instrument by screw thread, thus oil-pipe bridge plug is sent to the position needing shutoff.Can design in lower contact 5 and larger-diameter pumping ring is housed, thus the waterpower realizing horizontal well pumps into.
Last it is noted that above embodiment is only in order to illustrate the technical solution of the utility model, be not intended to limit; Although be described in detail the utility model with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of each embodiment technical scheme of the utility model.
Claims (9)
1. an oil-pipe bridge plug, is characterized in that, comprising:
Bridging plug body;
Be arranged in the dissolvable bridge plug part of described bridging plug body, described dissolvable bridge plug part is arranged in described bridging plug body, and described dissolvable bridge plug part is used for the central tube of bridging plug body described in shutoff.
2. oil-pipe bridge plug according to claim 1, is characterized in that, described dissolvable bridge plug part is made up of tripoli.
3. oil-pipe bridge plug according to claim 1 and 2, is characterized in that, described dissolvable bridge plug part is spherical.
4. oil-pipe bridge plug according to claim 1 and 2, is characterized in that, described dissolvable bridge plug part is cylindric.
5. oil-pipe bridge plug according to claim 1, is characterized in that, the diameter of described central tube is 50-62 millimeter.
6. oil-pipe bridge plug according to claim 3, is characterized in that, described central tube comprises the internal diameter tube that interior diameter successively decreases, and described dissolvable bridge plug part is stuck in described internal diameter tube.
7. oil-pipe bridge plug according to claim 6, is characterized in that, the maximum inner diameter of described internal diameter tube and the difference of minimum interior diameter are 5-10 millimeter.
8., according to the arbitrary described oil-pipe bridge plug of claim 5-7, it is characterized in that, described central tube is made up of composite material.
9. oil-pipe bridge plug according to claim 1, is characterized in that, described bridging plug body also comprises: the top connection be connected with described central tube and lower contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420802121.3U CN204457595U (en) | 2014-12-16 | 2014-12-16 | Oil pipe bridge plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420802121.3U CN204457595U (en) | 2014-12-16 | 2014-12-16 | Oil pipe bridge plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204457595U true CN204457595U (en) | 2015-07-08 |
Family
ID=53664497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420802121.3U Expired - Fee Related CN204457595U (en) | 2014-12-16 | 2014-12-16 | Oil pipe bridge plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204457595U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105672941A (en) * | 2016-02-02 | 2016-06-15 | 四机赛瓦石油钻采设备有限公司 | Degradable drilling-free bridge plug fracturing process |
| CN105888606A (en) * | 2016-04-29 | 2016-08-24 | 陕西艾瑞斯新材料科技有限公司 | Fast drilling bridge plug made of composite material |
| CN107304658A (en) * | 2016-04-22 | 2017-10-31 | 中国石油化工股份有限公司 | A kind of penetration type plugging device |
| CN108678707A (en) * | 2018-07-10 | 2018-10-19 | 中国石油天然气股份有限公司 | Dissolvable bridge plug for fracturing |
-
2014
- 2014-12-16 CN CN201420802121.3U patent/CN204457595U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105672941A (en) * | 2016-02-02 | 2016-06-15 | 四机赛瓦石油钻采设备有限公司 | Degradable drilling-free bridge plug fracturing process |
| CN107304658A (en) * | 2016-04-22 | 2017-10-31 | 中国石油化工股份有限公司 | A kind of penetration type plugging device |
| CN105888606A (en) * | 2016-04-29 | 2016-08-24 | 陕西艾瑞斯新材料科技有限公司 | Fast drilling bridge plug made of composite material |
| CN108678707A (en) * | 2018-07-10 | 2018-10-19 | 中国石油天然气股份有限公司 | Dissolvable bridge plug for fracturing |
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| 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: 20150708 |
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| CF01 | Termination of patent right due to non-payment of annual fee |