CN201180538Y - Test device for down-hole drop ply position - Google Patents
Test device for down-hole drop ply position Download PDFInfo
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- CN201180538Y CN201180538Y CNU2008200628665U CN200820062866U CN201180538Y CN 201180538 Y CN201180538 Y CN 201180538Y CN U2008200628665 U CNU2008200628665 U CN U2008200628665U CN 200820062866 U CN200820062866 U CN 200820062866U CN 201180538 Y CN201180538 Y CN 201180538Y
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- 238000012360 testing method Methods 0.000 title claims description 64
- 238000005553 drilling Methods 0.000 claims abstract description 43
- 230000006641 stabilisation Effects 0.000 claims description 6
- 238000011105 stabilization Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 abstract 4
- 239000012530 fluid Substances 0.000 description 28
- 238000000034 method Methods 0.000 description 18
- 239000007788 liquid Substances 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 238000010205 computational analysis Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000005649 metathesis reaction Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 238000001308 synthesis method Methods 0.000 description 1
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Abstract
The utility model relates to an underground lost circulation zone detector, belonging to the technical field of lost circulation zone detecting equipment manufacture, and comprising hardware and software. The hardware comprises a loaded short circuit and a flow detector; the loaded short circuit body is provided with a loading platform; two ends of the loading platform are connected with an upper stabilized current short circuit and a low stabilized current short circuit; the flow detector comprises a detection bin and a circuit bin; the detection bin is provided with an electrode section and a detection section; the circuit bin is provided with a power supply and a memory; and the detection bin is connected with the circuit bin by a cable. The utility model provides a detector for detecting the lost circulation zone after entering a well with a drilling tool, which solves the problem that artificial observation and following subjective judgment lead to large inaccuracy. The detector is connected with the drilling tool and is sent to the underground to acquire data, analyze the acquired data and draw a graph of the depth of flow speed, thereby having the characteristic of rapidly detecting the lost circulation zone.
Description
Technical field:
A kind of test device for down-hole drop ply position is applicable to the test of drop ply position after the generation leakage in the oil and gas well drilling process, belongs to the electronic equipment manufacturing technology field of testing drop ply position.
Background technology:
In the process of implementing oil and gas well drilling, because the reset condition difference on stratum, the pressure coefficient on stratum is also inequality, when running into the crack, perhaps during bigger stratum, other slits, because drilling fluid injects pit shaft having under the pressure status, so drilling fluid will leak from the annular space of pit shaft to inside, stratum, in the time of serious, the drilling fluid that injects the stratum stratum of can all bleeding causes the mistake of ground drilling liquid to be returned; After leakage takes place, in order to implement plugging operations, at first to determine the position of drop ply, could analyze drop ply character, formulate rational and effective Slot Handling scheme, at present, the method of determining drop ply position mainly contains analysis by synthesis method, well logging method, pump pressure method of changing before and after the leakage, positive crossover-circulating type method, circulation timei method, look for leakage method etc., the shortcoming of domestic prior art is: these methods all are to use other construction equipments, perhaps rely on manual observation to draw data, carry out the artificial subjective judgement of hydraulics calculating and log data then according to these data, therefore the resultant error of test is bigger; External in order to solve the problem of the drop ply degree of depth, special-purpose drop ply position detecting instrument and method have mainly been used, with tester with special equipment G.I.H, the basic functional principle of these instruments is that the flow velocity pressure head is converted to the signal of telecommunication, the signal of telecommunication is transferred to the receiving device on ground by the cable that is connected with instrument, the unusual judgement drop ply degree of depth according to the change in electric rule, the external equipment that leaks hunting and the shortcoming of method are: employing be that cable is connected G.I.H with tester, so a complete set of equipment such as needing cable reel is tested in enforcement and special technology troop just can carry out, in test process, also to therefore exist Measuring Time long to pit shaft continous pouring liquid, the cost height, the problem of positional accuracy difference.
Summary of the invention:
The purpose of this utility model is at prior art problems, adopts the underground electromagnetic flow test record, and the method for automatic analysis and judgment is downloaded on ground, designs a kind of down-hole drop ply position test macro that can utilize the drilling tool G.I.H to implement the drop ply test.
The utility model comprises hardware and software, it is characterized in that: described hardware components comprises carrying short circuit and flow rate test device, and carrying short circuit body is provided with a carrying platform, is connected with current stabilization short circuit and following current stabilization short circuit at the two ends of carrying platform; The flow rate test device comprises test chamber and circuit cabin, is provided with electrode section in the test chamber and surveys section, is provided with power supply and memory in the circuit cabin, and test chamber is connected with the circuit cabin by cable;
Described carrying short circuit be provided with guide shoe foremost;
The diameter of described carrying short circuit is greater than the diameter of drilling rod, and the diameter of carrying short circuit is less than the diameter of pit shaft;
Described flow rate test device is fixed on the carrying platform of carrying short circuit by fixing card and fixed bolt hole;
Be provided with exploring electrode in the described electrode section, survey in the section and be provided with the pressure and temperature sensor;
Also be provided with download interface on the memory in the described circuit cabin;
The task of test chamber is that flow, the pressure and temperature data to drilling fluid are implemented to gather in the down-hole, and the task in circuit cabin is the data that drilling fluid flow velocity under power supply, record and the storage well is provided for test chamber; When implementing the drop ply test, select the carrying short circuit of different-diameter for use according to different borehole sizes, then the flow rate test device is installed on the carrying short circuit, the carrying short circuit that connects the flow rate test device is connected the lower end of drilling rod, along with the drilling tool G.I.H, diameter can carry out space metathesis with the drilling fluid of staying in the pit shaft greater than the carrying short circuit of drill string, when the carrying short circuit that has the flow rate test device moves downward more than boundary at the bottom of the drop ply, by the up outflow pit shaft of drilling fluid part edge carrying short circuit annular space of carrying short circuit displacement, another part can be pushed into drop ply, when therefore liquid flow through the flow rate test device, its flow velocity was also slower, and flowing velocity can be noted by the flow rate test device, when the boundary is following at the bottom of the carrying short circuit that is provided with the flow rate test device arrives drop ply, owing to there is not drop ply below, the pressure of displacement drilling fluid can become greatly, therefore, the flow velocity of drilling fluid will be very fast, this flow velocity is also noted by the flow rate test device, according to the variation of two kinds of flow velocitys, just can determine the well depth on boundary at the bottom of the drop ply; In trip-out process, pour into drilling fluid by the constant current amount to annular space, when carrying short circuit when the boundary moves upward at the bottom of the drop ply, enter pit shaft drilling fluid some be pushed into drop ply, so drilling fluid downward flow also can be slower, after the carrying short circuit arrives the drop ply upper bound, because entering the drilling fluid of mineshaft annulus no longer misses, so it is big that pressure becomes, the downward flow velocity of drilling fluid also can be accelerated, and these flow-data are write down and store by the flow rate test device; After trip-out finishes, download in the computer, by analysis software and carry out data interpretation, determine the well depth position on circle, drop ply top by the data download interface that is provided with initial data with record.
The beneficial effects of the utility model are: the flow rate test device is connected with drilling tool sends into the down-hole, mode by well head perfusion drilling fluid in the process that makes a trip or make a trip, gather initial data and storages such as flow velocity, time, can reduce the use of special equipment in a large number, reduce the cost of test; Adopt first data acquisition, the method of computational analysis is carried out in the back on ground, can utilize software that the initial data of gathering is analyzed, handled, draw flow velocity-depth curve figure and determine the drop ply position well depth, have the advantages that to measure drop ply position quickly and easily, especially after long bore hole section leakage takes place, can improve the efficient of handling leakage and shorten the cycle of handling leakage, reduce the leakage loss.
Description of drawings:
Fig. 1 is the assembling schematic top plan view of the utility model carrying short circuit and flow rate test device.
Fig. 2 is the assembling schematic side view of the utility model carrying short circuit and flow rate test device.
Fig. 3 is the amplification partial schematic sectional view of the utility model flow rate test device.
The specific embodiment:
Provide embodiment of the present utility model below in conjunction with accompanying drawing, the utility model is made up of hardware and software two parts, hardware components comprises carrying short circuit 3 and flow rate test device, the diameter of carrying short circuit 3 is greater than drill string 1, carrying short circuit 3 bodies are provided with a carrying platform 6, be connected with current stabilization short circuit 2 and following current stabilization short circuit 7 at the two ends of carrying platform 6, the flow rate test device is fixed on the carrying platform 6 of carrying short circuit 3 by fixing card 11 and fixed bolt hole 8; The flow rate test device comprises test chamber 9 and circuit cabin 5, be provided with electrode section 4 in the test chamber 9 and survey section 10, in electrode section 4, be provided with exploring electrode 14, in surveying section 10, be provided with pressure and temperature sensor 15, main task is in the down-hole flow of drilling fluid, pressure and temperature data to be implemented to gather, and is provided with rope socket 13 at the front end of test chamber; Be provided with power supply and memory in the circuit cabin 5, the exploring electrode 14 in the test chamber 9, pressure and temperature sensor 15 are connected with memory with the power supply in circuit cabin 5 by the cable that is arranged on flow rate test device inside; For the flow velocity initial data of the down-hole drilling fluids of downloaded stored in memory, also be provided with download interface on the memory in circuit cabin 5, the task in circuit cabin is the data that power supply, record and storage downhole testing drilling fluid flow velocity are provided for test chamber; When implementing the drop ply test, select the carrying short circuit 3 of different-diameter for use according to different casing programmes and drill string size, the diameter of carrying short circuit 3 is greater than the diameter of drilling rod 1, the diameter of carrying short circuit 3 is less than the diameter of pit shaft, then the flow rate test device is installed on the carrying short circuit 3, the carrying short circuit 3 that connects the flow rate test device is connected the lower end of drilling rod 1, smooth for what bore down, be provided with guide shoe 12 foremost at carrying short circuit 3, in going down process, along with being lowered to of drilling tool, because the diameter of carrying short circuit 3 is greater than drilling rod 1, therefore can form the displacement in extruding and space to the drilling fluid of down-hole, drilling fluid in the well will be subjected to downward extruding under the promotion of carrying short circuit 3, when the carrying short circuit 3 that has the flow rate test device moves more than boundary at the bottom of the drop ply, the drilling fluid some that is promoted displacement by carrying short circuit 3 along the annular space of carrying short circuit 3 to up outflow pit shaft, another partly can be pushed and enter drop ply, therefore the pressure that promotes is less, under these circumstances, when liquid upwards flows through the flow rate test device that is arranged on the carrying short circuit 3, its flow velocity is also slower, flowing velocity that this is slower and pressure data can be set at the exploring electrode 14 of the flow rate test device on the carrying short circuit 3, pressure and temperature sensor 15 is noted, when the boundary is following at the bottom of the carrying short circuit 3 that is provided with the flow rate test device arrives drop ply, owing to there is not drop ply here, the pressure that promotes and replace drilling fluid can become big, therefore, when liquid flows through the flow rate test device that is arranged on the carrying short circuit 3, the flow velocity of drilling fluid will be very fast, this flow velocity also can be set at the exploring electrode 14 of the flow rate test device on the carrying short circuit 3, pressure and temperature sensor 15 is noted, according to the variation of two kinds of flow velocitys, just can determine the well depth on boundary at the bottom of the drop ply; Equally, in trip-out process, by pouring into drilling fluid to annular space with constant current float amount, when carrying short circuit 3 when the boundary moves upward at the bottom of the drop ply, enter pit shaft drilling fluid some be pushed into drop ply, less so upward pressure, flowing that drilling fluid is downward also can be slower, after carrying short circuit 3 arrives the drop ply upper bound, because entering the drilling fluid of mineshaft annulus no longer misses, can become big so upward pressure, the downward flow velocity of drilling fluid also can be accelerated, and these flow velocitys that flow velocity of drop ply well section arranged and do not have a drop ply well section are recorded and store when exploring electrode 14 by being arranged on the flow rate test device on the carrying short circuit 3 and pressure and temperature sensor 15; After trip-out finishes, the flow rate test device is taken off from the carrying short circuit, by the data download interface that is provided with the initial data that writes down is downloaded in the computer, carry out data readback by analysis software, and carry out data interpretation, owing to do not have the flow velocity of drop ply well section and have the flow velocity of drop ply well section inequality fully, therefore can be by drawing the well depth that flow velocity-depth curve figure determines drop ply position, and the formation of the data after will explaining data file, preserve for printout and data.
Claims (5)
1, a kind of test device for down-hole drop ply position comprises hardware and software, it is characterized in that:
Described hardware components comprises carrying short circuit and flow rate test device, and carrying short circuit body is provided with a carrying platform, is connected with current stabilization short circuit and following current stabilization short circuit at the two ends of carrying platform; The flow rate test device comprises test chamber and circuit cabin, is provided with electrode section in the test chamber and surveys section, is provided with power supply and memory in the circuit cabin, and test chamber is connected with the circuit cabin by cable.
2, test device for down-hole drop ply position according to claim 1 is characterized in that: described carrying short circuit be provided with guide shoe foremost.
3, test device for down-hole drop ply position according to claim 1 is characterized in that: the diameter of described carrying short circuit is greater than the diameter of drilling rod, and the diameter of carrying short circuit is less than the diameter of pit shaft.
4, test device for down-hole drop ply position according to claim 1 is characterized in that: described flow rate test device is fixed on the carrying platform of carrying short circuit by fixing card and fixed bolt hole.
5, test device for down-hole drop ply position according to claim 1 is characterized in that: be provided with exploring electrode in the described electrode section, survey in the section and be provided with the pressure and temperature sensor, also be provided with download interface on the memory in the circuit cabin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200628665U CN201180538Y (en) | 2008-04-11 | 2008-04-11 | Test device for down-hole drop ply position |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200628665U CN201180538Y (en) | 2008-04-11 | 2008-04-11 | Test device for down-hole drop ply position |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201180538Y true CN201180538Y (en) | 2009-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200628665U Expired - Fee Related CN201180538Y (en) | 2008-04-11 | 2008-04-11 | Test device for down-hole drop ply position |
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| Country | Link |
|---|---|
| CN (1) | CN201180538Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101109280B (en) * | 2007-08-17 | 2011-05-18 | 中国石油集团川庆钻探工程有限公司钻采工艺技术研究院 | Test device for down-hole drop ply position |
| CN108150157A (en) * | 2017-12-15 | 2018-06-12 | 中国石油集团川庆钻探工程有限公司 | Method for determining puncture condition and position of drilling tool by using tracer gas |
| CN112211619A (en) * | 2020-11-19 | 2021-01-12 | 中国石油天然气集团有限公司 | Method for rapidly determining lost circulation position in long open hole section |
| CN113803059A (en) * | 2021-08-02 | 2021-12-17 | 中石化石油工程技术服务有限公司 | Methods of finding and plugging lost circulation in long open-hole sections |
-
2008
- 2008-04-11 CN CNU2008200628665U patent/CN201180538Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101109280B (en) * | 2007-08-17 | 2011-05-18 | 中国石油集团川庆钻探工程有限公司钻采工艺技术研究院 | Test device for down-hole drop ply position |
| CN108150157A (en) * | 2017-12-15 | 2018-06-12 | 中国石油集团川庆钻探工程有限公司 | Method for determining puncture condition and position of drilling tool by using tracer gas |
| CN112211619A (en) * | 2020-11-19 | 2021-01-12 | 中国石油天然气集团有限公司 | Method for rapidly determining lost circulation position in long open hole section |
| CN113803059A (en) * | 2021-08-02 | 2021-12-17 | 中石化石油工程技术服务有限公司 | Methods of finding and plugging lost circulation in long open-hole sections |
| CN113803059B (en) * | 2021-08-02 | 2024-04-02 | 中石化石油工程技术服务有限公司 | Leakage finding and plugging method for long open hole section well leakage |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090114 Termination date: 20110411 |