CN204457591U - Single channel Oil/gas Well casing programme - Google Patents
Single channel Oil/gas Well casing programme Download PDFInfo
- Publication number
- CN204457591U CN204457591U CN201520093694.8U CN201520093694U CN204457591U CN 204457591 U CN204457591 U CN 204457591U CN 201520093694 U CN201520093694 U CN 201520093694U CN 204457591 U CN204457591 U CN 204457591U
- Authority
- CN
- China
- Prior art keywords
- oil
- cement sheath
- oil pipe
- pipe
- single channel
- 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
Abstract
The utility model discloses a kind of single channel Oil/gas Well casing programme, be made up of sleeve pipe, cement sheath, oil pipe and storm valve, storm valve is arranged on oil pipe top, and oil pipe top is arranged in sleeve pipe, oil pipe bottom is arranged in cement sheath, and oil-pipe external wall and cement sheath are sealed and matched, and cement sheath upper end and its lower end are sealed and matched, cement sheath lower end closed, forms flow channel in oil pipe.The operation of the utility model perforation completion does not take rig time, can improve oil and gas development efficiency, reduce and bore Completion cost and oil field whole development cost.
Description
Technical field
The utility model relates to a kind of brill completion system, particularly relates to a kind of single channel Oil/gas Well casing programme, belongs to oil-gas field development technical field.
Background technology
Traditional Oil/gas Well casing programme has two flow channels, is called for short binary channels.One is the oil pipe for production of hydrocarbons, and another is oil, casing annulus for the kill-job that circulates.Namely one is the passage formed in oil pipe, and oil pipe is arranged storm valve and circulating valve, one is the passage formed between oil pipe and sleeve pipe, arranges packer between oil pipe and sleeve pipe.Such as, the disclosed a kind of horizontal cementing of China Patent No. " 201410372272.4 " exempts to bore blind plate circulation cementing method, and publication date is on October 22nd, 2014.
The subject matter adopting this kind of Oil/gas Well casing programme to exist is:
(1) bored shaft diameter is large, and rig workload is large, and the activity duration is long;
(2) well is large, and drilling fluid consumption is large;
(3) because well is large, the annular space of bore hole inside wall and sleeve outer wall is large, and cementing concrete consumption is large;
(4) drilling tool size is large, and use large scale sleeve pipe, rolled steel dosage is large;
(5) because well is large, drilling machine power is large, and equipment volume is large, and energy consumption is high;
(6) freight volume of equipment and material is huge;
(7) bore Completion cost expensive, cause well quantity little, substantially additionally do not find the possibility of reservoir.
Summary of the invention
The purpose of this utility model is the problems referred to above overcoming prior art existence, provides a kind of single channel Oil/gas Well casing programme.The operation of the utility model perforation completion does not take rig time, can improve oil and gas development efficiency, reduce and bore Completion cost and oil field whole development cost.
For achieving the above object, the technical solution adopted in the utility model is as follows:
A kind of single channel Oil/gas Well casing programme, it is characterized in that: be made up of sleeve pipe, cement sheath, oil pipe and storm valve, storm valve is arranged on oil pipe top, and oil pipe top is arranged in sleeve pipe, oil pipe bottom is arranged in cement sheath, and oil-pipe external wall and cement sheath are sealed and matched, and cement sheath upper end and its lower end are sealed and matched, cement sheath lower end closed, forms flow channel in oil pipe.
Described cement sheath bottom is formed with perforated interval.
The thickness of described cement sheath is 5-10mm.
Employing the utility model has the advantage of:
One, the utility model is adopted to reach following effect:
(1) perforation completion operation does not take rig time;
(2) well is little, saves drilling fluid consumption;
(3) annular space is little, saves cementing concrete;
(4) drilling tool size used and casing size little, saving steel;
(5) rig and corollary equipment little, energy consumption is low;
(6) rig selected is little, drilling tool and casing size little, decrease freight volume;
(7) little to the pollution of environment;
(8) also there is a lot of benefit to oil recovery in slim-hole, as: rod weight alleviates, and pumping unit diminishes, energy-conservation etc.
Two, the utility model single channel is compared with existing binary channels, and the large scale in former binary channels is overlapped effective small size oil pipe and replace, the thickness of cementing concrete ring is at 5-10mm, and the cement sheath more than routine is thin, greatly saves the consumption of cementing concrete.
To sum up, the utility model oil pipe replaces sleeve pipe, and implements a kind of production of hydrocarbons well brill completion structure of well cementation and perforation to oil pipe, adopts this technology that brill completion practice expense will be made to reduce by 20% to 30%.Casing programme only has oil pipe flow channel, and this casing programme saves sleeve pipe, packer, circulating valve etc. and bores completion equipment, under enter these equipment operation just can correspondingly save.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation
Be labeled as in figure: 1, sleeve pipe, 2, cement sheath, 3, oil pipe, 4, storm valve, 5, perforated interval.
Detailed description of the invention
A kind of single channel Oil/gas Well casing programme, be made up of sleeve pipe 1, cement sheath 2, oil pipe 3 and storm valve 4, storm valve 4 is arranged on oil pipe 3 top, and oil pipe 3 top is arranged in sleeve pipe 1, oil pipe 3 bottom is arranged in cement sheath 2, and oil pipe 3 outer wall and cement sheath 2 are sealed and matched, and cement sheath 2 upper end and sleeve pipe 1 lower end are sealed and matched, cement sheath 2 lower end closed, forms flow channel in oil pipe 3.
Preferred embodiment of the present utility model is, described cement sheath 2 bottom is formed with perforated interval 5.
Another preferred embodiment of the present utility model is, the thickness of described cement sheath 2 is 5-10mm.
The utility model is mainly applicable to the little oil gas field of reserves abundance, and can the Oil/gas Well of blowing in whole product term.The mining term of single channel Oil/gas Well is general shorter, and well yield is low.The oil gas field adopting single channel to bore completion technique exploitation needs to bore many wells, and well spacing scope can be wider.From the angle of geological prospecting, drilling well more being conducive to finds more fluvial facies oil gas field reserves.
Claims (3)
1. a single channel Oil/gas Well casing programme, it is characterized in that: be made up of sleeve pipe (1), cement sheath (2), oil pipe (3) and storm valve (4), storm valve (4) is arranged on oil pipe (3) top, and oil pipe (3) top is arranged in sleeve pipe (1), oil pipe (3) bottom is arranged in cement sheath (2), oil pipe (3) outer wall and cement sheath (2) are sealed and matched, cement sheath (2) upper end and sleeve pipe (1) lower end are sealed and matched, cement sheath (2) lower end closed, forms flow channel in oil pipe (3).
2. single channel Oil/gas Well casing programme according to claim 1, is characterized in that: described cement sheath (2) bottom is formed with perforated interval (5).
3. single channel Oil/gas Well casing programme according to claim 1 and 2, is characterized in that: the thickness of described cement sheath (2) is 5-10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520093694.8U CN204457591U (en) | 2015-02-10 | 2015-02-10 | Single channel Oil/gas Well casing programme |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520093694.8U CN204457591U (en) | 2015-02-10 | 2015-02-10 | Single channel Oil/gas Well casing programme |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204457591U true CN204457591U (en) | 2015-07-08 |
Family
ID=53664493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520093694.8U Active CN204457591U (en) | 2015-02-10 | 2015-02-10 | Single channel Oil/gas Well casing programme |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204457591U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106593382A (en) * | 2017-02-09 | 2017-04-26 | 撒占东 | Method for collecting natural gas from producing well |
-
2015
- 2015-02-10 CN CN201520093694.8U patent/CN204457591U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106593382A (en) * | 2017-02-09 | 2017-04-26 | 撒占东 | Method for collecting natural gas from producing well |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102080526B (en) | Method for extracting gas from bedding level fractured well of ground coal seam roof | |
| CN110029938A (en) | A kind of air reverse circulation drilling method | |
| CN103161434A (en) | Mining method for low permeability reservoir of shale gas and the like | |
| CN205117236U (en) | Geology resource prospection bores well casing ball formula rigidity righting device | |
| CN103912304A (en) | Method for locally extracting gas of soft coal seams | |
| CN102434192A (en) | Device and method for enhancing coal seam fracturing effect | |
| CN202108424U (en) | Perforating, fracturing and draining integrated tubular column for oil well | |
| CN204457591U (en) | Single channel Oil/gas Well casing programme | |
| CN203716919U (en) | Open hole packer | |
| Miao et al. | Development status and prospect of staged fracturing technology in horizontal wells | |
| CN205211283U (en) | Experimental device for two gradient well drillings of efflux under simulation well | |
| CN202381046U (en) | Negative pressure flow string for oilfield pumping well | |
| RU138113U1 (en) | CHISEL WITH ADVANCED BLADES | |
| CN203756034U (en) | Hydraulic expansion drilling following hole opener | |
| CN216517904U (en) | Well mouth sealing device for oil extraction in oil field | |
| CN102758616B (en) | Multi-point formation pressure measuring instrument | |
| CN202215193U (en) | Water-swelling self-sealing type packer | |
| CN201225121Y (en) | Oil gas well selective completion tool | |
| CN204532329U (en) | Borehole accuracy precise control device | |
| CN203022620U (en) | Drilling equipment used in petroleum exploitation process | |
| CN201810213U (en) | Hydraulic mechanical cave forming tool | |
| CN203499618U (en) | Gas drive oil production annular test decentralized wellhead device | |
| CN202483513U (en) | Sliding sleeve for separate layer reconstruction | |
| CN205858270U (en) | A kind of selectivity cementing unit | |
| CN202673258U (en) | Filling device for well completion in oil exploitation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |