CN103015998A - In-situ sampling device applied to drilling process - Google Patents
In-situ sampling device applied to drilling process Download PDFInfo
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- CN103015998A CN103015998A CN2012101259796A CN201210125979A CN103015998A CN 103015998 A CN103015998 A CN 103015998A CN 2012101259796 A CN2012101259796 A CN 2012101259796A CN 201210125979 A CN201210125979 A CN 201210125979A CN 103015998 A CN103015998 A CN 103015998A
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- piston
- sampling
- sampling bottle
- plunger shaft
- drilling process
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Abstract
The invention relates to an in-situ sampling device applied to drilling process. The in-situ sampling device is characterized by comprising a drilling rod joint, a packer, a piston, a piston spring, a piston cavity, a rubber ring, a stop pin, a pin connection body, a screw nut, a sampling spring, a sampling rod, a piston cap, a sampling bottle outer cavity, a sampling bottle, a piston cap and a sealing rod, wherein a water inlet through hole is arranged in the drilling rod joint, the left end part of the drilling rod joint is connected with the drilling rod head through screw threads, the right part of the drilling rod joint is connected with the left end part of the packer through screw threads, a floral tube is arranged in the packer, a floral tube water opening is arranged on the floral tube, a rubber capsule is arranged on the outer wall of the floral tube, the floral tube water opening is communicated with a piston cavity water opening, the left end part of the piston cavity is connected with the right end part of the drilling rod joint through screw threads, the piston cavity water opening is arranged on the piston cavity, the right end part of the piston cavity is connected with the left end part of the pin connection body through screw threads, the stop pin is arranged on the pin connection body, and the stop pin is covered by the rubber ring. The in-situ sampling device has the characteristics that the reliability is good, the use is convenient, the structure is simple, and the cost is low.
Description
Technical field
The present invention relates to a kind of device that carries out in situ sampling for drilling process for drilled strata.
Background technology
In the geological drilling process, when formation lithology is analyzed and researched, also often need to sample to the original position fluid that the stratum discharges, for example: analysis of water, water Minerals content analysis, gas content analysis etc. all need the original position sample to analyze.Various mineral matters and the gas resource of this class technical work to containing in the deep understanding stratum, the safe working of mine and production, the Ground Treatment Schemes formulations the when analysis and prediction of geological disaster and engineering construction etc. are important in inhibiting all.
Summary of the invention
The object of the invention is to provide a kind of good reliability in the drilling process, easy to use, simple in structure, situ sampling device and that cost is low of being applied in.
For achieving the above object, the technical solution used in the present invention is: a kind of situ sampling device and that is applied in the drilling process is characterized in that it comprises tool joint, packer, piston, piston spring, plunger shaft, rubber ring, backing pin, pin joint body, nut, sampling spring, thief rod, piston cap, sampling bottle exocoel, sampling bottle, closed rod; Be provided with in the tool joint into the water through hole, left part and the drilling rod of tool joint are threaded connection, and the right part of tool joint and the left part of packer are threaded connection; Be provided with floral tube in the packer, floral tube is provided with the floral tube mouth of a river, and the floral tube outer wall is provided with the rubber capsule, and the floral tube mouth of a river communicates with the plunger shaft mouth of a river, and hydraulic pressure can make the rubber capsule expand when increasing, carry out hydraulic seal; The left part of plunger shaft is threaded with the right part of tool joint, and plunger shaft is provided with the plunger shaft mouth of a river; The left part of the right part of plunger shaft and pin joint body is threaded connection, and the pin joint body is provided with backing pin, and backing pin is wrapped up by rubber ring, and can fall in the draw-in groove at piston rear portion stuck piston; Piston is mobile in plunger shaft and pin joint body, is provided with piston spring between the right part of piston and the plunger shaft; The right part of packer and sampling bottle exocoel are threaded connection, and sampling bottle is connected by the both sides piston cap with the sampling bottle exocoel; Sampling bottle is provided with thief rod, and thief rod is used for space sealing between thief rod and the sampling bottle, and thief rod is provided with closed rod, and closed rod is used for sampling bottle sealing, and the left part of thief rod is connected with nut thread, and the right part of thief rod is positioned at sampling bottle; The sampling spring housing is on thief rod, and the sampling spring is between nut and sampling bottle.
The invention has the beneficial effects as follows: 1, adopt above-mentioned situ sampling device and good reliability, easy to use, simple in structure, cost is low, finishes sampling in the mode of pure machinery, and is simple to operate, greatly simplified the complex operations of traditional sampling device; 2, using method is simple, directly can carry out hydraulic seal by drilling rod, guarantees that institute's sample thief is the original position sample that the stratum discharges.
Description of drawings
The invention will be further described below in conjunction with description of drawings and embodiment.
Fig. 1 is the packer pressurization boring stage (sampling bottle is emptying)
Fig. 2 packer pressure release bleeding stage (sampling is finished)
Among the figure, 1-tool joint, 2-packer, 3-piston, 4-piston spring, 5-plunger shaft, 6-rubber ring, 7-backing pin, 8-pin joint body, 9-nut, 10-sampling spring, 11-thief rod, 12-piston cap, 13-sampling bottle exocoel, 14-sampling bottle, 15-piston cap, 16-closed rod, the 17-plunger shaft mouth of a river, 18-draw-in groove, 19-rubber capsule, the 20-floral tube mouth of a river.
The specific embodiment
In Fig. 1, embodiment shown in Figure 2, during pressurization, hydraulic pressure presses the conehead of piston 3, and then compression piston spring 4, piston 3 is moved to right, and water can flow to along the inlet opening of plunger shaft 5 in the packer 2, and simultaneously piston spring 4 bounce-backs are so that the conehead of piston 3 squeezes into the water hole, make the water-stop that flows into packer 2, rubber capsule 19 expands.Continue pressurization, rubber capsule 19 continues to expand, and when rubber capsule 19 expand into when being close to drill hole wall, has just finished the hydraulic seal to boring, can stop pressurization.Meanwhile, compressed at Water Pressure down-sampling spring 10, it is emptying with sampling bottle 14 to promote thief rod 11.
After stratum release has certain fluid, need to finish deblocking, thereby sampling apparatus is taken out from boring.The deblocking process as shown in Figure 2, continue pressurization, so that move on to the position of backing pin 7 behind the draw-in groove 18 of piston 3,6 pairs of backing pins 7 of rubber ring have a precompression, backing pin 7 can be fallen into draw-in groove 18 seized pistons 3 under this precompression effect, so that piston spring 4 can not resilience, the conehead of piston 3 can not seal the inlet opening.This moment, intake tunnel kept often opening, and rubber capsule 19 releasing pressure automaticallies shrink, packer 2 deblockings.Simultaneously, the resilience under suction function of compressed sampling spring 10, sampling bottle 14 sampling fluids are finished, and seal up the bottleneck of sampling bottle 14 by closed rod 16, finish sampling.
Claims (7)
1. situ sampling device and that is applied in the drilling process, it is characterized in that: it comprises tool joint, packer, piston, piston spring, plunger shaft, rubber ring, backing pin, pin joint body, nut, sampling spring, thief rod, sampling bottle exocoel, sampling bottle, piston cap, closed rod; Be provided with in the tool joint into the water through hole, left part and the drilling rod of tool joint are threaded connection, and the right part of tool joint and the left part of packer are threaded connection; Be provided with floral tube in the packer, floral tube is provided with the floral tube mouth of a river, and the floral tube outer wall is provided with the rubber capsule, and the floral tube mouth of a river communicates with the plunger shaft mouth of a river, and hydraulic pressure can make the rubber capsule expand when increasing, carry out hydraulic seal.
2. according to claims 1 described a kind of situ sampling device and that is applied in the drilling process, it is characterized in that: the left part of described plunger shaft is threaded with the right part of tool joint, and plunger shaft is provided with the plunger shaft mouth of a river.
3. according to claims 1 described a kind of situ sampling device and that is applied in the drilling process, it is characterized in that: the right part of described plunger shaft is threaded with the left part of pin joint body, the pin joint body is provided with backing pin, backing pin is wrapped up by rubber ring, and can fall in the draw-in groove of piston rear portion stuck piston.
4. according to claims 1 described a kind of situ sampling device and that is applied in the drilling process, it is characterized in that: described piston is mobile in plunger shaft and pin joint body, is provided with piston spring between the right part of piston and the plunger shaft.
5. according to claims 1 described a kind of situ sampling device and that is applied in the drilling process, it is characterized in that: the right part of described packer is threaded with the sampling bottle exocoel, and sampling bottle leans on the both sides piston cap, is connected with the sampling bottle exocoel.
6. according to claims 1 or 5 described a kind of situ sampling device ands that are applied in the drilling process, it is characterized in that: described sampling bottle is provided with thief rod, thief rod is used for space sealing between thief rod and the sampling bottle, thief rod is provided with closed rod, closed rod is used for sampling bottle sealing, the left part of thief rod is connected with nut thread, and the right part of thief rod is positioned at sampling bottle.
7. according to claims 1 described a kind of situ sampling device and that is applied in the drilling process, it is characterized in that: the sampling spring housing is on thief rod, and the sampling spring is between nut and sampling bottle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210125979.6A CN103015998B (en) | 2012-04-25 | 2012-04-25 | In-situ sampling device applied to drilling process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210125979.6A CN103015998B (en) | 2012-04-25 | 2012-04-25 | In-situ sampling device applied to drilling process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103015998A true CN103015998A (en) | 2013-04-03 |
| CN103015998B CN103015998B (en) | 2015-06-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210125979.6A Expired - Fee Related CN103015998B (en) | 2012-04-25 | 2012-04-25 | In-situ sampling device applied to drilling process |
Country Status (1)
| Country | Link |
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| CN (1) | CN103015998B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107966316A (en) * | 2017-11-10 | 2018-04-27 | 东南大学 | A kind of fixed sampler of hydraulic pressure and its sampling method |
Citations (8)
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|---|---|---|---|---|
| US3976136A (en) * | 1975-06-20 | 1976-08-24 | Halliburton Company | Pressure operated isolation valve for use in a well testing apparatus and its method of operation |
| CN2926503Y (en) * | 2006-07-03 | 2007-07-25 | 中国石化集团河南石油勘探局地球物理测井公司 | Single-layer packing sampling tester for oil well |
| EP2039880A2 (en) * | 2007-09-24 | 2009-03-25 | Commissariat A L'energie Atomique | Multi-level static sampler |
| CN201396153Y (en) * | 2008-12-15 | 2010-02-03 | 中国石油化工集团公司 | Multi-time underground sampling device |
| CN201620889U (en) * | 2010-02-10 | 2010-11-03 | 中国石油天然气股份有限公司 | Small-tube-diameter underground annular sampler |
| US20110114310A1 (en) * | 2009-11-16 | 2011-05-19 | Simon Ross | Downhole formation tester |
| CN202117667U (en) * | 2011-06-03 | 2012-01-18 | 中国石油天然气股份有限公司 | Downhole sampler of injection well |
| CN202117668U (en) * | 2011-07-04 | 2012-01-18 | 中国石油化工股份有限公司 | Pressure control sampler |
-
2012
- 2012-04-25 CN CN201210125979.6A patent/CN103015998B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3976136A (en) * | 1975-06-20 | 1976-08-24 | Halliburton Company | Pressure operated isolation valve for use in a well testing apparatus and its method of operation |
| CN2926503Y (en) * | 2006-07-03 | 2007-07-25 | 中国石化集团河南石油勘探局地球物理测井公司 | Single-layer packing sampling tester for oil well |
| EP2039880A2 (en) * | 2007-09-24 | 2009-03-25 | Commissariat A L'energie Atomique | Multi-level static sampler |
| CN201396153Y (en) * | 2008-12-15 | 2010-02-03 | 中国石油化工集团公司 | Multi-time underground sampling device |
| US20110114310A1 (en) * | 2009-11-16 | 2011-05-19 | Simon Ross | Downhole formation tester |
| CN201620889U (en) * | 2010-02-10 | 2010-11-03 | 中国石油天然气股份有限公司 | Small-tube-diameter underground annular sampler |
| CN202117667U (en) * | 2011-06-03 | 2012-01-18 | 中国石油天然气股份有限公司 | Downhole sampler of injection well |
| CN202117668U (en) * | 2011-07-04 | 2012-01-18 | 中国石油化工股份有限公司 | Pressure control sampler |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107966316A (en) * | 2017-11-10 | 2018-04-27 | 东南大学 | A kind of fixed sampler of hydraulic pressure and its sampling method |
| CN107966316B (en) * | 2017-11-10 | 2019-10-15 | 东南大学 | The hydraulic fixed sampler of one kind and its sampling method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103015998B (en) | 2015-06-24 |
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Granted publication date: 20150624 Termination date: 20180425 |