CN2243534Y - Oil well underground fracturing data collecting apparatus - Google Patents
Oil well underground fracturing data collecting apparatus Download PDFInfo
- Publication number
- CN2243534Y CN2243534Y CN95221722U CN95221722U CN2243534Y CN 2243534 Y CN2243534 Y CN 2243534Y CN 95221722 U CN95221722 U CN 95221722U CN 95221722 U CN95221722 U CN 95221722U CN 2243534 Y CN2243534 Y CN 2243534Y
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- cylindrical
- top connection
- pressure
- outer tube
- hole
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Abstract
The utility model relates to an oil well underground fracturing data collecting apparatus. The utility model is composed of a metal cylindrical inner tube 4 and a metal cylindrical outer tube 5; a circular ring column 6 is arranged between the metal cylindrical inner tube 4 and the metal cylindrical outer tube 5, external threads of cones of an upper joint 7 and a lower joint 8 are connected with the metal cylindrical outer tube 5 to seal the utility model; the external threads of an outer cone of the upper end of the upper joint are used for connecting with a well tool; a multi-core socket 17 is fixed on a through hole 22 arranged on the side wall of the upper joint; a pressure and temperature sensor 1, a data processing and storage circuit 2 and a charge battery 3 are all fixed in the circular ring column 6. The utility model can be directly placed in the underground well and conduct real time acquisition and store data of pressure and temperature changes. The utility model has the advantages of high precision and wide measurement range.
Description
Oil underground fracture data acquisition unit is mainly used under the oil well in the high pressure fracturing process time dependent parameter of acquisition and recording pressure and the time dependent parameter of temperature in real time.
Still incompetent now device in the direct acquisition and recording pressure in the down-hole of 60MPa pressure break state, variations in temperature data.And in order to improve the output of oil well, oil exploitation department often adopts fracturing technique.During pressure break, oil well is to the real-time response process of pressure and variations in temperature in the fracturing section, and promptly p-t, T-t curve are unique basic datas that the oil reservoir dynamic characteristic can be provided, and is prediction petroleum reserves and the key foundation that improves oil production rate.
The purpose of this utility model is a kind of directly going deep under the oil well of design, gathers and store the device of pressure, variations in temperature data in fracturing process in real time.
The utility model is made up of housing, pressure and temperature sensor, data processing and memory circuit, rechargeable battery.Housing is made up of cylindrical inside and outside metal tube, and cylindrical outer tube is shorter than pipe in cylindrical, and cylindrical interior tube hub is a through hole, injects the passage of high pressure and quartz sand when this through hole is pressure break in well.The annulus post that forms between the cylindrical inner and outer pipes is sealed it by top connection and lower contact, and last lower contact all adopts conical external screw thread to be connected with cylindrical outer tube.It is conical that the upper end of top connection also is, and have external screw thread, is used for being connected with the well tool.The pressure and temperature sensor is fixed in the annulus post, has a through hole in the sidewall of top connection, is used to receive pressure signal.Data processing and memory circuit and rechargeable battery all are sealed in the annulus post.The utility model is with extraneous transfer of data and charge the battery and is connected by a multi-core socket, and multi-core socket is fixed in the screw of top connection, and getting in touch finishes is sealed it by bolt.
The utility model, is accepted to give the time of putting the underground work parameter and starting working on ground behind communication instrument and microcomputer network, and the utility model also has self-checking function, reaches in the oil underground fracture section after performance is normal and works.Because the utility model has adopted single-chip microcomputer and interface circuit thereof, so can directly carry out the data acquisition and the storage of fracturing process in real time.Thereby the data that the utlity model has collection are accurate, precision is high, and (resolution ratio of pressure can reach 0.017%FS, and the resolution ratio of temperature can reach 0.01%FS.), broad quantum (pressure is at 0～60MPa, and temperature is at 0～100 ℃), surveying work time long (greater than 100 hours), adapt to the advantage of operating ambient temperature range wide (55～125 ℃).That the utility model also has is low in energy consumption, abnormal conditions take place also has the automatic power cutoff protector function.Go up lower contact interconnection system structure because housing adopts, be convenient to assembling, maintenance and externally communication, whole housing compressive property is good, and sealing performance is better.
Fig. 1 is an overall structure schematic diagram of the present utility model.
Embodiment: present embodiment is made up of housing, pressure and temperature sensor 1, data processing and memory circuit 2, rechargeable battery 3.Housing is made up of pipe 4 and cylindrical metal outer tube 5 in the cylindrical metal.In cylindrical between pipe 4 and the cylindrical outer tube 5 the annulus post 6 of formation by top connection 7 and lower contact 8 with its sealing, top connection 7 all adopts conical external screw thread 9 to be connected with Outer cylindrical pipe 5 with 10 with lower contact 8.The lower end of lower contact 8 and cylindrical interior pipe 4 joints are added with a sealing shroud 11, the outside of sealing shroud 11 is with a pressure cuffs 12 again, the lower end of sealing shroud 11 and pressure cuffs 12 is added with a pressurization packing ring 13 again, and the lower end of pressurization packing ring 13 is fastened in the cylindrical metal by pressurizing nut 14 and manages on 4.It is conical that the upper end of top connection 7 is, and band external screw thread 15, is used for being connected with the well tool.When connecting, discord well tool seals by a female cone nut 16.Be fixed with a multi-core socket 17 in the sidewall of top connection 7 with in annulus post 6 through hole 22 mutually, through hole 22 by bolt 18 with its sealing.Pressure and temperature sensor 1 is fixed in the annulus post 6, has a through hole 19 on the sidewall of top connection, is filled with antiseptic oil 23 in through hole 19, is used to transmit pressure signal and gives pressure sensor 1, and through hole 19 communicates with the receive window of sensor 1.Data processing and memory circuit 2 and rechargeable battery 3 all sealing and fixing are sealed by wiper seal circle 20 between pressure and temperature sensor 1 and the annulus post 6 in annulus post 6.
Claims (5)
1, oil underground fracture data acquisition unit is by housing, pressure and temperature sensor (1), data are handled and memory circuit (2), rechargeable battery (3) is formed, it is characterized in that housing is made up of pipe (4) and cylindrical metal outer tube (5) in the cylindrical metal, cylindrical outer tube (5) is shorter than pipe (4) in cylindrical, in cylindrical the center of pipe (4) be through hole (21) cylindrical in the annulus post (6) of formation between pipe (4) and the cylindrical outer tube (5) by top connection (7) and lower contact (8) with its sealing, top connection (7) all adopts conical external screw thread (9) to be connected with cylindrical outer tube (5) with (10) with lower contact (8), the upper end of top connection (7) also is the cylindrical taper, and band external screw thread (15), be used for being connected with the well tool; Be fixed with a multi-core socket (17) in the through hole (22) that the sidewall of top connection (7) is interior with annulus post (6) communicates, pressure and temperature sensor (1) is fixed in the annulus post (6), on the sidewall of top connection (7), have a hole (19), this hole (19) communicates with the receive window of pressure sensor (1), data handle and memory circuit (2), rechargeable battery (3) all sealing and fixing in annulus post (6).
2, oil underground fracture data acquisition unit according to claim 1, lower end and cylindrical interior pipe (4) joint of it is characterized in that lower contact (8) are added with a sealing shroud (11), the outside of sealing shroud (11) is with a pressure cuffs (12) again, the lower end of sealing shroud (11) and pressure cuffs (12) is added with a pressurization packing ring (13) again, and the lower end of pressurization packing ring (13) is fastened on the cylindrical interior pipe (4) by pressurizing nut (14).
3, oil underground fracture data acquisition unit according to claim 1, the through hole (22) that it is characterized in that fixing multi-core socket (17) by bolt (18) with its sealing.
4, oil underground fracture data acquisition unit according to claim 1, when the upper end discord well tool that it is characterized in that top connection (7) connects, by a female cone nut (16) with its sealing.
5, oil underground fracture data acquisition unit according to claim 1 is characterized in that being filled with antiseptic oil (23) in the areole (19) of top connection (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95221722U CN2243534Y (en) | 1995-09-12 | 1995-09-12 | Oil well underground fracturing data collecting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95221722U CN2243534Y (en) | 1995-09-12 | 1995-09-12 | Oil well underground fracturing data collecting apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2243534Y true CN2243534Y (en) | 1996-12-25 |
Family
ID=33869267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95221722U Expired - Fee Related CN2243534Y (en) | 1995-09-12 | 1995-09-12 | Oil well underground fracturing data collecting apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2243534Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101598014B (en) * | 2009-04-07 | 2012-10-10 | 中国石油集团川庆钻探工程有限公司 | Perforation simulated target device for high temperature and high pressure laboratory |
| CN105756663A (en) * | 2016-04-01 | 2016-07-13 | 中国石油化工股份有限公司 | Down-hole parameter monitoring device for fracturing |
-
1995
- 1995-09-12 CN CN95221722U patent/CN2243534Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101598014B (en) * | 2009-04-07 | 2012-10-10 | 中国石油集团川庆钻探工程有限公司 | Perforation simulated target device for high temperature and high pressure laboratory |
| CN105756663A (en) * | 2016-04-01 | 2016-07-13 | 中国石油化工股份有限公司 | Down-hole parameter monitoring device for fracturing |
| CN105756663B (en) * | 2016-04-01 | 2018-10-26 | 中国石油化工股份有限公司 | A kind of pressure break downhole parameters monitoring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |