CN201288544Y - Combined test instrument for flow seal inspection - Google Patents
Combined test instrument for flow seal inspection Download PDFInfo
- Publication number
- CN201288544Y CN201288544Y CNU2008201403688U CN200820140368U CN201288544Y CN 201288544 Y CN201288544 Y CN 201288544Y CN U2008201403688 U CNU2008201403688 U CN U2008201403688U CN 200820140368 U CN200820140368 U CN 200820140368U CN 201288544 Y CN201288544 Y CN 201288544Y
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Abstract
The utility model discloses a flow sealing checking combination tester which is used for testing the water injection wall of oil field, the flow sealing checking combination tester comprises a centralizer assembly, a sealing joint, a device outer tube, an electronic circuit board with a singlechip microcomputer, a plug-and-socket and a battery. The electronic circuit board is connected with the battery through the plug-and-socket. The centralizer assembly is connected with the upper end of sealing joint through screw connection. The device outer tube is connected with the lower end of sealing joint through screw connection. The inner part of device outer tube is fixedly connected with an upper pressure sensor, a lower pressure sensor, an upper flow sensor and a lower flow sensor which are connected with the electronic circuit board. The flow sealing checking combination tester according to the utility model can test water injection amount and sealing in one well entering, and realizes the function of one machine with multiple use.
Description
Technical field
The utility model relates to a kind of flow and tests envelope combined test instrument, is used for the oil injection well testing.
Background technology
Water injection well in oil fields is used for injecting water under high pressure to each oil reservoir of down-hole, drives crude stream in contiguous oil well.Because the difference of each oil reservoirs geological conditions, every layer water injection rate and water injection pressure have nothing in common with each other.Adopt a plurality of packers (the special-purpose down-hole of oil equipment) that each layer kept apart on the engineering.But because the packer outside is made by elastomeric material, regular meeting causes the rubber tube breakage in the process of going into the well, and causes adjacent two water filling layers to lose sealing.Judge whether equivalent layer position, down-hole has occurred this kind situation, and the oil field uses routine to test the envelope tester always.Its test philosophy is a force value of utilizing seal-checking instrument with two pressure sensors to test each packer upper and lower.If there is pressure differential, judge that then packer lost efficacy.Simultaneously, in order to grasp the water injection rate of each layer of down-hole, use various conventional flow meters to measure.
At present, conventional downhole testing will be finished by secondary operation.One is lowered to the sealing that seal-checking instrument is checked each layer packer earlier, is lowered to flow meter again behind the taking-up seal-checking instrument, tests the injection flow of each interval.Obviously, need to use the two kinds of instruments and the test jobs of going into the well for twice at least, cause operating cost to increase, work progress is loaded down with trivial details, and especially pressure that records for twice and flow data do not possess strict sync correlation, have limited the practical value of test data greatly.
The utility model content
Technical problem to be solved in the utility model provides a kind of flow and tests envelope combined test instrument, and the test of checking sealing of packer sealing and flux of separated-zone water infection is finished simultaneously, has both guaranteed the correlation of test data, reduces the test job amount again at double.
For solving the problems of the technologies described above, technical scheme provided by the utility model is: a kind of flow is tested envelope combined test instrument, this tester includes centralizer assembly, seal nipple, instrument outer tube, the electronic circuit board that has single-chip microcomputer, plugs and sockets and battery, the bottom of described centralizer assembly is a hollow, described electronic circuit board, plugs and sockets and battery are located in the centralizer assembly, and described electronic circuit board is connected with battery by plugs and sockets; Described seal nipple and instrument outer tube all are tubulose; Described centralizer assembly is threaded in the upper end of seal nipple, and described instrument external pipe thread is connected the lower end of seal nipple;
Described seal nipple is that the side is provided with through hole, and the upper pressure sensor is installed in the described through hole;
Have liquid pass hole on the tube wall of described instrument outer tube; The internal fixation of described instrument outer tube is connected with sensor connector, bottom pressure sensor, top flow transmitter and bottom flow transmitter, and described sensor connector is a hollow form, is fixedly connected on the bottom of instrument outer tube; Described bottom pressure sensor is located at the bottom in the sensor connector; Described bottom flow transmitter be located at liquid pass hole below; Described top flow transmitter be located at liquid pass hole above;
Described upper pressure sensor, bottom pressure sensor, top flow transmitter and bottom flow transmitter all are connected with electronic circuit board.
Offer crossed beam trunking on the tube wall of described instrument outer tube, described crossed beam trunking is provided with and protects the line pressure lid accordingly.
Be provided with O shape rubber seal between described centralizer assembly and the seal nipple.
Described seal nipple bottom is stopped up the first sealing plug; The top of described sensor connector is stopped up the second sealing plug.
Described liquid pass hole is provided with 6, is divided into two-layerly, and every layer is mutually 120 ° diametrically.
The advantage that the utlity model has: topology layout is reasonable, easy operating and maintenance; Flow is to carry out synchronously with testing the envelope test in time, and the test data correlation is good; One-stop operation is gone into the well, and can finish flow simultaneously and test envelope test, testing time-effectiveness height.
Description of drawings:
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is a sectional view of the present utility model.
The specific embodiment:
A kind of flow is as shown in Figure 1 tested envelope combined test instrument, this tester includes centralizer assembly 1, seal nipple 5, instrument outer tube 15, the electronic circuit board 4 that has single-chip microcomputer, plugs and sockets 3 and battery 2, the bottom of described centralizer assembly 1 is a hollow, described electronic circuit board 4, plugs and sockets 3 and battery 2 are located in the centralizer assembly 1, and described electronic circuit board 4 is connected with battery 2 by plugs and sockets 3; Described seal nipple 5 and instrument outer tube 15 all are tubulose; Described centralizer assembly 1 is threaded in the upper end of seal nipple 5, and described instrument outer tube 15 is threaded in the lower end of seal nipple 5; Described seal nipple 5 is equipped with upper pressure sensor 7 for the side is provided with through hole in the described through hole; Have liquid pass hole 16 on the tube wall of described instrument outer tube 15; The internal fixation of described instrument outer tube 15 is connected with sensor connector 17, bottom pressure sensor 14, top flow transmitter 9 and bottom flow transmitter 12, and described sensor connector 17 is a hollow form, is fixedly connected on the bottom of instrument outer tube 15; The bottom that described bottom pressure sensor 14 is located in the sensor connector 17; Described bottom flow transmitter 12 be located at liquid pass hole 16 below; Described top flow transmitter 9 be located at liquid pass hole 16 above; Described upper pressure sensor 7, bottom pressure sensor 14, top flow transmitter 9 and bottom flow transmitter 12 all are connected with electronic circuit board 4.
In order to make the combination instrument in water injection string, be in the axial centre position, with the accuracy of dependable flow test.Selected conventional spring leaf centralizer assembly 1 in the design for use, the core of this centralizer assembly 1 becomes the symmetric form resiliency supported by the spring plate group of 4 lantern shapes, one end can be free to slide on center-pole, when spring leaf during by radial compression, can guarantee that still apparatus subject is in the middle position always.
In order to make the combination instrument can measure the interlayer pressure of being kept apart simultaneously, be provided with two pressure sensors 7 and 14 by packer.Lay for side direction one of its middle and upper part, is used to measure the pressure corresponding to packer top, and another is installed in the Instrument shell bottom, is used to measure the pressure corresponding to the packer bottom, finishes with this and tests the envelope test function.
In order to make combination instrument energy measurement flux of separated-zone water infection, designed ultrasonic flowmeter, it is formed ultrasonic wave by two ultrasonic flow sensors 9 and 12 up and down and alternately transmits and receives system, utilizes traditional interval transit time principle to finish flow measurement.
Adopt skill in frame for movement design, take the method opening crossed beam trunking 10 and conduit bushing plate 11 is set on combination instrument instrument outer tube 15 tube walls, emphasis has solved the electrical lead wire problem of bottom pressure sensor 14 and bottom flow transmitter 12.
For collection measurement and the data storage of finishing two-way pressure and flow, being provided with the SCM system is the electronic circuit part of core.It is made up of electronic circuit board 4 and plugs and sockets 3 and the battery 2 that is used to power.The lead-in wire of upper pressure sensor 7 and bottom pressure sensor 14, the lead-in wire of top flow transmitter 9 and bottom flow transmitter 12 all draw and are soldered on the electronic circuit board 4.
For the high-pressure fluid that makes combination instrument outside can not invade instrument internal, be provided with O type O-ring seal 6 in seal nipple 5 and centralizer assembly 1 junction, on seal nipple 5 and sensor connector 17, used the first sealing plug 8 and the second sealing plug 13 respectively.
For clearly demonstrating the utility model instrument, provide preferred embodiment below and be described with reference to the accompanying drawings, referring to Fig. 1, bottom pressure sensor 14 is installed in the sensor connector 17, the electrical lead wire of pressure sensor 14 is drawn by the second sealing plug 13, and sealing plug 13 makes external high pressure can not enter the inside of pressure sensor 14.Sensor connector 17 is fixed on the lower position of instrument outer tube 15 by engage thread.Make the pressure of 14 corresponding packers of impression of bottom pressure sensor bottom.Top flow transmitter 9 and bottom flow transmitter 12 are fixed on the central bore two ends of instrument outer tube 15 by engage thread.The corresponding position of flow transmitter up and down has liquid pass hole 16 on the tube wall of instrument outer tube 15, radially be mutually 120 °, and totally 6 holes make the fluid that flows through in water injection string to flow to outflow by liquid pass hole 16, guarantee that flow transmitter records correct flow.
For the electrical connecting wires that makes bottom pressure sensor 14 and bottom flow transmitter 12 can be incorporated on the electronic circuit board 4, on the tube wall of instrument outer tube 15, have crossed beam trunking 10, the electrical connecting wires wire harness is striden across up and down flow transmitter (9 and 12) and connect within the instrument outer tube 15 in crossed beam trunking 10.Wire harness is subjected to outside scratching in the groove in order to avoid, and in the external Design of crossed beam trunking 10 conduit bushing plate 11 is arranged, and utilizes the trip bolt at its two ends, and conduit bushing plate 11 and instrument outer tube 15 are tightened to one.The wire harness that draws in the electrical lead wire of top flow transmitter 9 and the crossed beam trunking 10 is implemented sealing by sealing plug 8 and is passed through, and the cable-through hole through seal nipple 5 inside draws and is soldered on the electronic circuit board 4.Upper pressure sensor 7 is installed in the side down hole on the seal nipple 5, and its electric on line is also passed to draw behind the mesopore and is soldered on the electronic circuit board 4.The bottom of seal nipple 5 tightens together by thread connecting mode and instrument outer tube 15, the sealing drum of its top and centralizer assembly 1 bottom adopts engage thread to spin, and O shape O-ring seal 6 is installed at the thread root of seal nipple 5, make outside high-pressure fluid can't invade sealing drum inside.Be on the electronic circuit board 4 of sealing drum inside SCM system is being set, be used to finish programmable data collection and storage.The top of electronic circuit board 4 is connecting supplying cell 2 by plugs and sockets 3, and the electric energy of electronic system is provided by supplying cell 2.
Instrument is gone into the well when using, and at first disintegrates with sealing drum place, centralizer assembly 1 lower end at seal nipple 5, pulls up battery 2.Use RS232 serial communication bundle of lines computer and socket 3 online, import this test software programs, start two pressure sensors (7 and 14) and enter working programme.Pull out connection then, plug battery 2, screw on centralizer assembly 1.Simultaneously, in order to adapt to the engineering configuration of underground water-injection tubing string, screw on oil and test the supporting special tool " testing seal section " of envelope test construction on instrument outer tube 15 lower ends, this instrument rises in test separates impulse and conflux positioning action.So far, the combination instrument use of can going into the well.
The combination instrument hangs the test of going into the well by steel wire system, successively is enclosed in the injection well downhole flow regulator position of water injection well tubing string from the bottom to top, records the seal pressure data of testing and the flow data of each layer respectively, and its test data is stored in the SCM system on the electronic circuit board 4.After test finished, the combination instrument was carried go back to ground, and the back of disintegrating is with calculating the machine-readable test data that goes out to be stored in instrument internal, after ground-based computer is for data processing, and output flow and test to seal and test photo information.
Claims (5)
1, a kind of flow is tested envelope combined test instrument, it is characterized in that: this tester includes centralizer assembly, seal nipple, instrument outer tube, the electronic circuit board that has single-chip microcomputer, plugs and sockets and battery, the bottom of described centralizer assembly is a hollow, described electronic circuit board, plugs and sockets and battery are located in the centralizer assembly, and described electronic circuit board is connected with battery by plugs and sockets; Described seal nipple and instrument outer tube all are tubulose; Described centralizer assembly is threaded in the upper end of seal nipple, and described instrument external pipe thread is connected the lower end of seal nipple;
Described seal nipple is that the side is provided with through hole, and the upper pressure sensor is installed in the described through hole;
Have liquid pass hole on the tube wall of described instrument outer tube; The internal fixation of described instrument outer tube is connected with sensor connector, bottom pressure sensor, top flow transmitter and bottom flow transmitter, and described sensor connector is a hollow form, is fixedly connected on the bottom of instrument outer tube; Described bottom pressure sensor is located at the bottom in the sensor connector; Described bottom flow transmitter be located at liquid pass hole below; Described top flow transmitter be located at liquid pass hole above;
Described upper pressure sensor, bottom pressure sensor, top flow transmitter and bottom flow transmitter all are connected with electronic circuit board.
2, flow according to claim 1 is tested envelope combined test instrument, it is characterized in that: offer crossed beam trunking on the tube wall of described instrument outer tube, described crossed beam trunking is provided with and protects the line pressure lid accordingly.
3, flow according to claim 1 is tested envelope combined test instrument, it is characterized in that: be provided with O shape rubber seal between described centralizer assembly and the seal nipple.
4, flow according to claim 1 is tested envelope combined test instrument, it is characterized in that: described seal nipple bottom is stopped up the first sealing plug; The top of described sensor connector is stopped up the second sealing plug.
5, flow according to claim 1 is tested envelope combined test instrument, and it is characterized in that: described liquid pass hole is provided with 6, is divided into two-layerly, and every layer is mutually 120 ° diametrically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201403688U CN201288544Y (en) | 2008-11-14 | 2008-11-14 | Combined test instrument for flow seal inspection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201403688U CN201288544Y (en) | 2008-11-14 | 2008-11-14 | Combined test instrument for flow seal inspection |
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| Publication Number | Publication Date |
|---|---|
| CN201288544Y true CN201288544Y (en) | 2009-08-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2008201403688U Expired - Fee Related CN201288544Y (en) | 2008-11-14 | 2008-11-14 | Combined test instrument for flow seal inspection |
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| CN (1) | CN201288544Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900427A (en) * | 2012-11-08 | 2013-01-30 | 焦春红 | Double-tracing thin layer recognizer |
| CN103015972A (en) * | 2012-12-14 | 2013-04-03 | 中国海洋石油总公司 | Oil-based mud measuring polar plate |
| CN103075151A (en) * | 2013-01-24 | 2013-05-01 | 西南石油大学 | Flow measurement tool for small section |
| CN103147736A (en) * | 2013-02-01 | 2013-06-12 | 中国石油天然气股份有限公司 | Underground electric control direct-reading type seal checking instrument for water injection well |
| CN104990672A (en) * | 2015-06-29 | 2015-10-21 | 株洲时代新材料科技股份有限公司 | Method and device for testing sealing performance of rubber sleeve of packer |
| CN109779620A (en) * | 2019-01-25 | 2019-05-21 | 中国石油天然气集团有限公司 | A kind of azimuthal density image logging while drilling apparatus |
-
2008
- 2008-11-14 CN CNU2008201403688U patent/CN201288544Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900427A (en) * | 2012-11-08 | 2013-01-30 | 焦春红 | Double-tracing thin layer recognizer |
| CN102900427B (en) * | 2012-11-08 | 2015-01-21 | 焦春红 | Double-tracing thin layer recognizer |
| CN103015972A (en) * | 2012-12-14 | 2013-04-03 | 中国海洋石油总公司 | Oil-based mud measuring polar plate |
| CN103015972B (en) * | 2012-12-14 | 2015-08-19 | 中国海洋石油总公司 | A kind of oil-base mud measuring pad |
| CN103075151A (en) * | 2013-01-24 | 2013-05-01 | 西南石油大学 | Flow measurement tool for small section |
| CN103075151B (en) * | 2013-01-24 | 2015-08-26 | 西南石油大学 | Flow measurement tool for small section |
| CN103147736A (en) * | 2013-02-01 | 2013-06-12 | 中国石油天然气股份有限公司 | Underground electric control direct-reading type seal checking instrument for water injection well |
| CN103147736B (en) * | 2013-02-01 | 2015-09-16 | 中国石油天然气股份有限公司 | Underground electric control direct-reading type seal checking instrument for water injection well |
| CN104990672A (en) * | 2015-06-29 | 2015-10-21 | 株洲时代新材料科技股份有限公司 | Method and device for testing sealing performance of rubber sleeve of packer |
| CN104990672B (en) * | 2015-06-29 | 2018-09-18 | 株洲时代新材料科技股份有限公司 | Packing element sealing performance test method and sealing property testing equipment |
| CN109779620A (en) * | 2019-01-25 | 2019-05-21 | 中国石油天然气集团有限公司 | A kind of azimuthal density image logging while drilling apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20090812 Termination date: 20141114 |
|
| EXPY | Termination of patent right or utility model |