CN110735620B - Functional pipe column for communicating reservoir and method for communicating reservoir - Google Patents
Functional pipe column for communicating reservoir and method for communicating reservoir Download PDFInfo
- Publication number
- CN110735620B CN110735620B CN201810791739.7A CN201810791739A CN110735620B CN 110735620 B CN110735620 B CN 110735620B CN 201810791739 A CN201810791739 A CN 201810791739A CN 110735620 B CN110735620 B CN 110735620B
- Authority
- CN
- China
- Prior art keywords
- support
- branch pipe
- pipe
- reservoir
- nipple joint
- 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.)
- Active
Links
Images
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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/17—Interconnecting two or more wells by fracturing or otherwise attacking the formation
-
- 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/11—Perforators; Permeators
- E21B43/112—Perforators with extendable perforating members, e.g. actuated by fluid means
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention provides a functional pipe column for communicating a reservoir and a method for communicating the reservoir, wherein the pipe column comprises: the method comprises the following steps: casing, production increase nipple joint, support nipple joint and bleeder, wherein include a plurality of interconnect's casing and support nipple joint, the one end of last support nipple joint is connected to last a lesson casing, and the production increase nipple joint is connected to the other end of last support nipple joint, and the bleeder passes from interconnect's casing and support nipple joint, just the both ends of bleeder construct: the tail end of the branch pipe is connected into the oblique through hole of the yield increasing short section and faces the direction of the reservoir stratum, the branch pipe is limited to extend out under the natural condition, and the branch pipe extends out to communicate with the peripheral reservoir stratum when the set condition is met. The tubular column can realize the purpose of communicating fracture-cavity type and hole type reservoirs in a long-distance, large-range and high-efficiency manner, reduce the times of tripping the tubular column and improve the oil extraction efficiency.
Description
Technical Field
The invention relates to the technical field of petroleum downhole completion tools, in particular to a functional pipe column for communicating reservoirs and a method for communicating the reservoirs.
Background
In oil extraction, it is an important process to open oil flow channels. In the prior art, where perforating the oil flow path includes perforating the oil flow path with shaped charges, the majority of the perforation patterns in more than half of the world have not changed fundamentally. Although the perforation process, the tool and the method are all greatly improved, the problem of pollution of compaction zones generated by the perforation on the reservoir cannot be overcome, the effective permeability of the reservoir is greatly reduced, and the method is extremely unfavorable for crude oil production. For this reason, a hydraulic sand-blasting perforation process is used, but the scale of application of this process is limited due to the conditions such as nozzle material, high-pressure pump, and perforation communication range.
Patent 200610001128.5 and patent 201110096631.4 disclose a high-pressure water jet deep-penetrating transmission hole and auxiliary fracturing method and a device used for the method, the device punches a small hole in a sleeve and a stratum through a piston, a wedge body and a punch, then a jet hose is conveyed into the small hole, clean water is injected into the ground, and the self-advancing nozzle is used for carrying out rock breaking while the self-advancing nozzle carries out jet and extends into the stratum. Although the method can generate the pore canal with a certain length, the pore canal communication range is still far from enough, and the rock breaking effect of the jet is limited. In addition, the small pore channels of the main pipe need to be perforated in advance, the process is complicated, only one pore channel can be drilled in the stratum in each operation, if a plurality of pore channels are drilled, the pipe column needs to be pulled out and put down for corresponding construction for many times, the operation is complicated, the time consumption is too long, the construction cost is high, and the applicability of the method is reduced.
Disclosure of Invention
Aiming at part or all of the technical problems in the prior art, the invention provides the functional pipe column for communicating the reservoir and the method for communicating the reservoir, which can realize the purpose of communicating the fracture-cavity type reservoir and the hole type reservoir in a long distance, a large range and high efficiency, reduce the times of tripping the pipe column and improve the oil extraction efficiency.
In order to achieve the above object, in one aspect, the present invention provides a functional string for communicating reservoirs, having the following structure, including: casing, production increase nipple joint, support nipple joint and bleeder, wherein include a plurality of interconnect's casing and support nipple joint, the one end of last support nipple joint is connected to last a lesson casing, and the production increase nipple joint is connected to the other end of last support nipple joint, and the bleeder passes from interconnect's casing and support nipple joint, just the both ends of bleeder construct: the tail end of the branch pipe is connected into the oblique through hole of the yield increasing short section and faces the reservoir direction, and the branch pipe is limited to extend out under the natural condition; when the set conditions are met, the branch pipes extend out of the reservoir layers around the communication.
In the invention, the tail end of the branch pipe is connected to the production increasing short joint, and when a set condition is reached, the branch pipe can extend out of the communication reservoir. The extension length of the branch pipe can extend under pressure and form jet in a certain range, so that the branch pipe can communicate with the reservoir stratum around the fracture-cavity type and the hole type in a long distance, large range and high efficiency. After the fracture-cavity reservoir stratum and the hole-cavity reservoir stratum are communicated, the oil can be effectively exploited, and the oil extraction efficiency is improved. Meanwhile, the aim of exploitation can be achieved by once putting the pipe column, and the times of pulling and putting the pipe column are reduced. In addition, due to the structure comprising a plurality of sleeves and supporting short sections, the number of the sleeves and the supporting short sections can be selected according to the depth of a reservoir stratum, so that the method is suitable for common oil production wells, ultra-deep wells, inclined wells and the like, and can better meet the requirement of oil extraction.
In one embodiment, the support nipple and the casing are connected by a cooperating thread structure and a tubing buckle.
In an embodiment, prop nipple joint one end and be equipped with the first internal thread that is used for connecting, the nipple joint other end is equipped with the external screw thread that is used for connecting, prop the nipple joint and be close to first internal thread one end inboard still be equipped with be used for the chucking and support the chucking supporting component of lateral pipe.
In one embodiment, the clamping support assembly comprises a clamping sleeve and a support sleeve, the clamping sleeve is connected with a second internal thread arranged in the support short section, and the diameter of the second internal thread is smaller than that of the first internal thread; one end of the supporting sleeve abuts against the clamping sleeve, and the other end of the supporting sleeve abuts against the inner shoulder of the supporting short section.
In one embodiment, a convex ring is arranged in the middle of the outer surface of the support sleeve, bearings are sleeved on annular concave portions on two sides of the convex ring, and the support sleeve abuts against the inner surfaces of the clamping sleeve and the support short section through the bearings.
In one embodiment, four channels for the branch pipes to pass through are arranged in the middle of the support sleeve, and the four channels are uniformly distributed in the support sleeve.
In one embodiment, the branch pipe is installed in the supporting sleeve, and the beginning of the branch pipe is connected with a soluble spacing pin. In the running process of the pipe column, the soluble limiting pin can play a role in limiting the branch pipes.
In one embodiment of the process of the present invention,
the end of lateral pipe is equipped with the end, the end includes:
a nozzle connected to the branch pipe;
the sealing assembly is connected between the tail end of the branch pipe and the inner wall of the yield increasing short section where the inclined through hole is located in a sealing mode;
the nut compression ring is connected in the oblique through hole of the yield increasing short section; and
and the soluble limiting ring is arranged between the nut pressing ring and the sealing assembly.
In another aspect, the present invention provides a method of communicating a reservoir, the method comprising the steps of:
connecting the functional pipe strings and then putting the functional pipe strings into the well;
pumping acid liquor into the pipe column, and dissolving a soluble limiting pin arranged at the starting end of the branch pipe and a soluble limiting ring arranged in the end head of the tail end of the branch pipe to realize pressure building in the pipe;
and pumping and injecting acid liquor continuously to enable the branch pipe to extend out of the target reservoir stratum and communicate with the reservoir stratum near the wellbore.
In one embodiment, when the lower deep position of the production increasing pup joint reaches the target reservoir position, acid liquor is pumped into the pipe, the acid liquor causes the acid release valve at the bottom of the well completion pipe column to be closed, the soluble limiting ring at the tail end of the branch pipe and the soluble limiting pin at the starting end of the branch pipe are dissolved, and the branch pipe is not restrained; and continuously pumping acid liquor, and when the pressure in the pipe reaches a certain value, extending the branch pipe out of the reservoir near the communication shaft under the hydraulic traction action formed by the nozzle.
Compared with the prior art, the invention has the advantages that:
1) the branch pipe is generally a hose, is preset in a functional pipe column and is put into the well along with a well completion pipe column to reach the position of a reservoir stratum, and the operations of perforation, branch pipe extension and remote reservoir stratum communication are completed by one time of the pipe column, so that the efficiency is high and the cost is low.
2) The functional pipe column can be changed according to the length of the branch pipe, so that the purpose of reservoir communication in different length ranges is achieved, and the reservoir communication range is large.
3) Four branch pipes can be preset in the functional pipe column and are symmetrically distributed, and when the pump injects acid liquor, the four branch pipes lose restraint at the same time, so that the four branch pipes are pricked into the reservoir at different angles, the communication area is large, and the effect is good.
Drawings
Preferred embodiments of the present invention will be described in detail below with reference to the attached drawing figures, wherein:
FIG. 1 is a schematic structural diagram of one embodiment of a functional string according to the present invention;
FIG. 2 is a schematic structural diagram of the connection part of the stimulation nipple and the branch pipe in FIG. 1;
FIG. 3 is an enlarged partial view A of the end of the branch pipe of FIG. 2, with the branch pipe in a natural state;
FIG. 4 is an enlarged partial view A' of the end of the branch pipe of FIG. 3, with the branch pipe in an extended position;
FIG. 5 is a schematic structural diagram of the support nipple in FIG. 1;
FIG. 6 is a schematic view of a partial structure of the end of the lateral pipe engaged with the short bracing segment;
FIG. 7 is a schematic cross-sectional view of a support nipple after installation of the lateral pipe.
In the drawings, like parts are provided with like reference numerals. The figures are not drawn to scale.
Detailed Description
In order to make the technical solutions and advantages of the present invention more apparent, exemplary embodiments of the present invention are described in further detail below with reference to the accompanying drawings. It is clear that the described embodiments are only a part of the embodiments of the invention, and not an exhaustive list of all embodiments. And the embodiments and features of the embodiments may be combined with each other without conflict.
The inventor notices in the invention process that the existing method for deeply penetrating the transmission hole and assisting fracturing through high-pressure water jet has limited rock-breaking effect by spraying, and the operation is complicated because a pipe column needs to be lifted and lowered for corresponding construction for many times when the hole is drilled.
In view of the above disadvantages, embodiments of the present invention provide a functional string for communicating reservoirs and a method for using the same, which will be described in detail below.
FIG. 1 shows a schematic diagram of one embodiment of a functional string for communicating with a reservoir according to the present invention. In this embodiment, the functional string for communicating reservoirs of the present invention mainly comprises: a production increasing short section 4, a branch pipe 3, a plurality of interconnected casings 1 and a support short section 2. Wherein, the last casing pipe 13 is connected with one end of the last support short section 23, and the other end of the last support short section 23 is connected with the production increasing short section 4. The branch pipe 3 passes through the casing 1 and the support nipple 2 which are connected with each other in sequence, and the end head 300 of the branch pipe 3 is connected into an inclined through hole 41 on the stimulation nipple 4 and faces the direction of the reservoir. In addition, both ends of the branch pipe 3 are configured to: the branch pipe 3 is blocked from extending under natural conditions, and the branch pipe 3 is extended out to communicate with the reservoir when the set conditions are reached. This arrangement is primarily to achieve efficient injection by waiting until the lateral 3 reaches the target reservoir location.
In one embodiment, as shown in fig. 1, at least two or more casings 1 and short joints 2 are included. The structure of the functional pipe string and the interconnection relationship between the components are explained below by taking the functional pipe string comprising three casings 1 and three support nipples 2 as an example. The upper end of the first section of casing 11 is connected with the pipe column 6 through external threads. The lower end of the first section of casing 11 is connected with the internal thread at the upper end of the first support nipple 21 through external threads. The external thread at the lower end of the first support nipple 21 is connected with the upper end of the middle casing 12 through a tubing buckle 5. The oil pipe buckle 5, the sleeve 1 and the support short section 2 are in threaded connection or welded connection. The lower end of the intermediate casing 12 passes through an intermediate support sub 22. The middle support short joint 22 is connected with the last oil pipe section 13 through an oil pipe buckle. The lower end of the last oil pipe section 23 is connected with the last support short section 23 through threads. And the last support short joint 23 is connected with the internal thread of the production increasing short joint 4 through external threads. Thereby constituting a tubular body portion of the functional string.
In one embodiment, as shown in fig. 5 and 6, each support sub 2 comprises a sub body 200, one end of the sub body 200 is provided with a first internal thread 201 for connecting with the casing 1, and the other end of the sub body 200 is provided with an external thread 202 for connection. The inner side of the end, close to the first internal thread 201, of the nipple body 200 is also provided with a clamping and supporting assembly for clamping and supporting the branch pipe 3.
In one embodiment, as shown in fig. 5 and 6, the clamping support assembly mainly comprises a clamping sleeve 203 and a support sleeve 204. Wherein, the clamping sleeve 203 and the second internal thread of the support short section 2 form a fastening structure through threaded connection. And the diameter of second internal thread is less than the diameter of first internal thread 201, can conveniently put into nipple joint body 200 with clamping sleeve 203 like this and carry on spacingly to support cover 204. One end of the support sleeve 204 abuts against the clamping sleeve 203, and the other end of the support sleeve 204 abuts against an inner shoulder of the nipple body 200 of the support nipple 2.
In a preferred embodiment, as shown in fig. 5 and 6, a convex ring is provided at the middle of the outer surface of the support sleeve 204, and a bearing 205 is sleeved on the annular concave part at both sides of the convex ring. Support sleeve 204 abuts against clamping sleeve 203 and the inner surface of sub body 200 of support sub 2 via bearings 205. The main function of the clamping sleeve 203 and the support sleeve 204 arranged in the support nipple 2 is to support and restrain the branch pipe 3 in the pipe. Meanwhile, the bearing 205 is arranged to increase the flexibility of the support nipple 2, and even if the branch pipe is rotated by the acting force, the support sleeve 204 can also rotate instead of directly clamping the branch pipe 3, so that the branch pipe 3 is not damaged.
In one embodiment, as shown in fig. 1, 6 and 7, the middle of the support sleeve 204 is provided with four channels for four branch pipes to pass through. The four channels are uniformly distributed in the support sleeve 204 (as shown in fig. 7), the four branch pipes 3 respectively pass through the channels, and the support sleeve 204 is configured to prevent the four branch pipes 3 from being entangled and interfering with each other. And after the branch pipe 3 is installed in the support sleeve 204, the tail end of the branch pipe 3 is connected with a soluble spacing pin 7. This soluble spacer pin 7 goes into the well in-process under the function tubular column, plays the effect that restriction bleeder 3 removed during natural state, guarantees that the tubular column transfers the in-process, and bleeder 3 does not because of the slippage of self gravity reason. When acid liquor is pumped into the pipe in the operation process, the soluble limiting pin 7 is dissolved in the acid liquor environment, the tail part of the branch pipe 3 is not restrained, and the branch pipe can extend out under the hydraulic traction action of the front-end nozzle 302 (the front end is the tail end of the branch pipe 3).
In one embodiment, the end 300 of the lateral is connected into the slanted bore 41 in the stimulation sub 4 and directed towards the reservoir. Here the stimulation nipple 4 acts as a support for the end 300 acting as a lateral 3. The four oblique through holes 41 are distributed on the yield increasing nipple 4 in an axially and uniformly distributed structure. In a further preferred embodiment, the angled through hole 41 is angled at 15 ° to 60 ° to the axial direction of the function string. When the angle is larger, in order to prevent the influence of the reaction force of the fluid in the branch pipe 3 on the stimulation nipple 4, it is conceivable to provide a connection structure between the tip 300 of the branch pipe and the stimulation nipple 4 to prevent the influence of the reaction force.
In one embodiment, as shown in FIG. 3, the tip 300 of the branch pipe essentially comprises: nozzle 302, seal assembly 301, nut press ring 304, and soluble stop collar 303. The nozzle 302 is attached to the end of the branch pipe 3 by welding or screwing. The sealing assembly 301 is sleeved outside the branch pipe 3 and exceeds the plane of the nozzle 302, and the sealing assembly 301 is installed between the branch pipe 3 and the inner wall of the oblique through hole 41 of the yield increasing nipple 4. The sealing assembly 301 mainly realizes the sealing of the annular space between the outer wall of the branch pipe 3 and the yield increasing nipple 5, and ensures that all liquid in the inner cavity of the yield increasing nipple 5 can be sprayed out only through the branch pipe 3 and a nozzle 302 at the front end of the branch pipe. The front end of the nozzle 302 is designed with a soluble spacing ring 303, and is fixed by a nut pressing ring 304. The soluble confinement ring 303 abuts between the nut collar 304 and the seal assembly 302. The nut pressing ring 304 is connected in the inclined through hole 41 of the yield increasing nipple 4 through threads to limit the soluble limiting ring 303. The soluble stop collar 303 prevents the branch pipe 4 and nozzle 302 from protruding from the interior of the branch pipe tip 300 when the well is in its natural state.
In one embodiment, as shown in fig. 4, after pumping acid solution into the functional string, the soluble spacer pin 7 and the soluble spacer ring 303 gradually dissolve in an acid solution environment. The branch pipe 3 and the nozzle 302 at the front end thereof are out of the way and extend outwards under the hydraulic traction of the nozzle 9 to communicate with the reservoir near the wellbore.
In another aspect, the present invention also provides a method for communicating a reservoir, the method using a functional string as described above and comprising the steps of:
connecting the pipe columns and then putting the pipe columns into the position of a reservoir in the well;
pumping acid liquor into the pipe column, and dissolving a soluble limiting pin 7 arranged at the front end of the branch pipe 3 and a soluble limiting ring 303 arranged in an end head 300 of the branch pipe 3 to realize pressure building in the pipe column;
and pumping acid liquor continuously so that the branch pipe 3 extends out of the reservoir near the communication well bore.
In one embodiment, the entire functional string is run into the well as part of the completion string after the connection, and when the deep location below the stimulation sub 4 reaches the target reservoir location, acid is pumped into the tubing, which causes the completion string bottom acid release valve (a check valve on the completion, normally open, release closed upon exposure to acid) to close, the soluble stop collar 303 at the front end of the lateral 3 and the soluble stop pin 7 at the end to dissolve, and the lateral 3 is left unconstrained. And then, the pressure in the pipe is suppressed, acid liquor is continuously pumped and injected, and when the pressure in the pipe reaches a certain value, the branch pipe 3 extends out of a reservoir near a communication shaft under the action of hydraulic traction formed by the nozzle 302. The depth range of the functional column communication is determined by the length of the branch pipe 3. In addition, the number of the connected sleeves 1 and the number of the connected support short sections 2 can be flexibly arranged according to the length of the branch pipes 3, and theoretically, the length of the branch pipes 3 is not restricted under the condition that construction water horsepower is enough.
In one embodiment, after the depth position of the stimulation sub in the functional string reaches the target reservoir, acid fluid is pumped into the surface, and acid fluid is sprayed out from the nozzle 302 at the front end of the branch pipe 3 (typically a hose) for hydraulic injection. The pore-forming is realized under the combined action of acid liquor corrosion and hydraulic jet, meanwhile, the branch pipes in an acid liquor environment are not restrained, and the four branch pipes are completely extended out and pricked into the reservoir under the action of hydraulic traction, so that the aim of communicating a fracture-cavity type reservoir and a hole type reservoir in a long-distance, large-range and high-efficiency manner is fulfilled, and the recovery ratio of an oil well is improved.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, the appended claims are intended to be construed to include preferred embodiments and all such changes and/or modifications as fall within the scope of the invention, and all such changes and/or modifications as are made to the embodiments of the present invention are intended to be covered by the scope of the invention.
Claims (9)
1. A functional string for communicating with a reservoir, comprising: casing, production increase nipple joint, support nipple joint and bleeder, wherein include a plurality of interconnect's casing and support nipple joint, the one end of last support nipple joint is connected to last a lesson casing, and the production increase nipple joint is connected to the other end of last support nipple joint, and the bleeder passes from interconnect's casing and support nipple joint, just the both ends of bleeder construct: the tail end of the branch pipe is connected into the oblique through hole of the yield increasing short section and faces the reservoir direction, and the branch pipe is limited to extend out under the natural condition; when the set conditions are met, the branch pipes extend out of the peripheral reservoir,
wherein the starting end of the branch pipe is connected with a soluble limit pin,
the end of lateral pipe is equipped with the end, the end includes: a nozzle connected to the branch pipe; the sealing assembly is connected between the tail end of the branch pipe and the inner wall of the yield increasing short section where the inclined through hole is located in a sealing mode; the nut compression ring is connected in the oblique through hole of the yield increasing short section; and the soluble limiting ring is arranged between the nut pressing ring and the sealing assembly.
2. The string of claim 1, wherein the support sub and the casing are connected by a cooperating threaded arrangement and tubing buckle.
3. The pipe string according to claim 1 or 2, wherein one end of the support nipple is provided with a first internal thread for connection, the other end of the support nipple is provided with an external thread for connection, and a clamping and supporting assembly for clamping and supporting the branch pipe is further arranged on the inner side of one end of the support nipple close to the first internal thread.
4. The pipe string of claim 3, wherein the clamping support assembly comprises a clamping sleeve and a support sleeve, the clamping sleeve is connected with a second internal thread arranged in the support nipple, and the diameter of the second internal thread is smaller than that of the first internal thread; one end of the supporting sleeve abuts against the clamping sleeve, and the other end of the supporting sleeve abuts against the inner shoulder of the supporting short section.
5. The pipe string as claimed in claim 4, wherein a convex ring is arranged in the middle of the outer surface of the support sleeve, bearings are sleeved on annular concave parts on two sides of the convex ring, and the support sleeve abuts against the inner surfaces of the clamping sleeve and the support short section through the bearings.
6. A pipe string according to claim 4, wherein four channels for the passage of branch pipes are provided in the middle of the support sleeve, and the four channels are evenly distributed in the support sleeve.
7. A pipe string according to claim 4 wherein the lateral is mounted within a support sleeve.
8. A method of communicating reservoirs, the method comprising the steps of:
connecting and running a functional string according to any one of claims 1 to 7 into a well;
pumping acid liquor into the pipe column, and dissolving a soluble limiting pin arranged at the starting end of the branch pipe and a soluble limiting ring arranged in the end head of the tail end of the branch pipe to realize pressure building in the pipe;
and pumping and injecting acid liquor continuously to enable the branch pipe to extend out of the target reservoir stratum and communicate with the reservoir stratum near the wellbore.
9. The method of claim 8, wherein when the lower deep position of the stimulation sub reaches the target reservoir position, acid liquid is pumped into the pipe, the acid liquid causes the acid release valve at the bottom of the completion pipe string to be closed, the soluble limiting ring at the tail end of the branch pipe and the soluble limiting pin at the starting end of the branch pipe to be dissolved, and the branch pipe is out of restraint; and continuously pumping acid liquor, and when the pressure in the pipe reaches a certain value, extending the branch pipe out of the reservoir near the communication shaft under the hydraulic traction action formed by the nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810791739.7A CN110735620B (en) | 2018-07-18 | 2018-07-18 | Functional pipe column for communicating reservoir and method for communicating reservoir |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810791739.7A CN110735620B (en) | 2018-07-18 | 2018-07-18 | Functional pipe column for communicating reservoir and method for communicating reservoir |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110735620A CN110735620A (en) | 2020-01-31 |
| CN110735620B true CN110735620B (en) | 2021-10-19 |
Family
ID=69234911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810791739.7A Active CN110735620B (en) | 2018-07-18 | 2018-07-18 | Functional pipe column for communicating reservoir and method for communicating reservoir |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110735620B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100999989A (en) * | 2006-01-13 | 2007-07-18 | 中国石油大学(北京) | High pressure water jet-flow deep penetrating perforating and its auxiliary crushing method and apparatus |
| CN102747999A (en) * | 2011-04-18 | 2012-10-24 | 中联煤层气有限责任公司 | Method for developing coal bed gas by deeply penetrating radial horizontal well by hydraulic power |
| CN105370240A (en) * | 2015-10-13 | 2016-03-02 | 中国石油天然气股份有限公司 | Bridge plug for easy pumping of bi-directional seat hanger |
| CN105443085A (en) * | 2014-09-24 | 2016-03-30 | 中国石油化工股份有限公司 | Oil gas exploitation apparatus and method |
| CN106988686A (en) * | 2016-01-20 | 2017-07-28 | 中国石油化工股份有限公司 | Tubing string |
| CN107013180A (en) * | 2017-06-02 | 2017-08-04 | 中国石油天然气集团公司 | The solvable expansion plugging device of pit shaft |
| CN107461152A (en) * | 2016-06-02 | 2017-12-12 | 中国石油化工股份有限公司 | Multilateral Wells sidetracking device and Multilateral Wells sidetracking method |
| CN107461186A (en) * | 2016-06-02 | 2017-12-12 | 中国石油化工股份有限公司 | Multilateral Wells reservoir reconstruction device and remodeling method |
| CN107461151A (en) * | 2016-06-02 | 2017-12-12 | 中国石油化工股份有限公司 | The static pressure sidetracking device and remodeling method of pinniform Multilateral Wells |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7387165B2 (en) * | 2004-12-14 | 2008-06-17 | Schlumberger Technology Corporation | System for completing multiple well intervals |
| CA2886934C (en) * | 2014-03-31 | 2023-01-24 | Cenovus Energy Inc. | Establishing fluid communication for hydrocarbon recovery using surfactant |
-
2018
- 2018-07-18 CN CN201810791739.7A patent/CN110735620B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100999989A (en) * | 2006-01-13 | 2007-07-18 | 中国石油大学(北京) | High pressure water jet-flow deep penetrating perforating and its auxiliary crushing method and apparatus |
| CN102747999A (en) * | 2011-04-18 | 2012-10-24 | 中联煤层气有限责任公司 | Method for developing coal bed gas by deeply penetrating radial horizontal well by hydraulic power |
| CN105443085A (en) * | 2014-09-24 | 2016-03-30 | 中国石油化工股份有限公司 | Oil gas exploitation apparatus and method |
| CN105370240A (en) * | 2015-10-13 | 2016-03-02 | 中国石油天然气股份有限公司 | Bridge plug for easy pumping of bi-directional seat hanger |
| CN106988686A (en) * | 2016-01-20 | 2017-07-28 | 中国石油化工股份有限公司 | Tubing string |
| CN107461152A (en) * | 2016-06-02 | 2017-12-12 | 中国石油化工股份有限公司 | Multilateral Wells sidetracking device and Multilateral Wells sidetracking method |
| CN107461186A (en) * | 2016-06-02 | 2017-12-12 | 中国石油化工股份有限公司 | Multilateral Wells reservoir reconstruction device and remodeling method |
| CN107461151A (en) * | 2016-06-02 | 2017-12-12 | 中国石油化工股份有限公司 | The static pressure sidetracking device and remodeling method of pinniform Multilateral Wells |
| CN107013180A (en) * | 2017-06-02 | 2017-08-04 | 中国石油天然气集团公司 | The solvable expansion plugging device of pit shaft |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110735620A (en) | 2020-01-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105443085B (en) | Oil and gas exploitation device and method | |
| CN107489405B (en) | Method for dragging sand-blasting perforation and annular sand-filling staged fracturing by continuous oil pipe | |
| CN203201467U (en) | Steering tool for jet drilling radial well through hydraulic-controlled hollow spherical joint connection | |
| CN205063914U (en) | Perforation, sand control, lose rifle integration completion pipe string | |
| RU177980U1 (en) | Fracturing Device | |
| CN104832092A (en) | Hydraulic jet sidetracking process | |
| CN208137872U (en) | A kind of jet stream de-plugging tubing string | |
| CN106437522A (en) | Deep-level and high-ground-stress coal uncovering and drilling construction device and method | |
| CN214035591U (en) | Downhole tool for deep sea drillless permanent abandoned well | |
| CN110735620B (en) | Functional pipe column for communicating reservoir and method for communicating reservoir | |
| CN108301769A (en) | A kind of RW types horizontal well construction method and its drilling tool used | |
| RU2529460C2 (en) | Flushing device | |
| CN103806882B (en) | Liquid method and device is adopted in a kind of gaslift | |
| CN109763784B (en) | Split bridge plug hydraulic setting tool and setting method thereof | |
| CN114183076B (en) | Hydraulic jet drilling pipe column and hydraulic jet drilling method | |
| CN101446188B (en) | Single upper seal sand blasting perforation fracturing technology | |
| CN204899858U (en) | Radial well plain type recycle valve | |
| RU84917U1 (en) | HYDROMONITOR DEVICE FOR CAVITY FORMATION IN UNDERGROUND FORMATIONS THROUGH A WELL | |
| CN109281615B (en) | Radial hydraulic jet perforation pipe column with preset tool | |
| CN108868614B (en) | High-pressure hose and hydraulic jet radial drilling method | |
| CN208280910U (en) | Naked eye sieve tube completion horizontal well is for the outer mud of pipe and acidification integral process tubing string | |
| CN112324377A (en) | Downhole operation tool and operation method for deep-sea drillless permanent abandoned well | |
| CN114810021A (en) | Gas well full life cycle coiled tubing completion pipe string and process method thereof | |
| CN103362470B (en) | Oil/gas Well annular mechanical packing packer | |
| CN111058792A (en) | Coiled tubing perforation-free under-pressure operation-free well completion device and method |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |