CN202381090U - Impact-type underground sampling device - Google Patents
Impact-type underground sampling device Download PDFInfo
- Publication number
- CN202381090U CN202381090U CN2012200002662U CN201220000266U CN202381090U CN 202381090 U CN202381090 U CN 202381090U CN 2012200002662 U CN2012200002662 U CN 2012200002662U CN 201220000266 U CN201220000266 U CN 201220000266U CN 202381090 U CN202381090 U CN 202381090U
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- push rod
- bump
- piston
- sampling
- sampling tube
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Abstract
The utility model relates to an impact-type underground sampling device which is applied to stratum test of an oil well, a gas well and a water well and is used for sampling fluid produced by the stratum. The impact-type underground sampling device is convenient and accurate to sample and is simple and reliable to operate. The utility model adopts the technical scheme that: an upper connector is connected with the upper end of an upper sampling cylinder through threads, and the junction between the upper connector and the upper end of the upper sampling cylinder is sealed by a rectangular cross sectional sealing ring; the lower end of the upper sampling cylinder is connected with a locking block, the lower end of the locking block is connected with a lower sampling cylinder, the lower end of the lower sampling cylinder is connected with an impact outer cylinder to form a main shell; a push rod is installed inside the main shell, the push rod is fixedly connected with the locking block through a shearing pin, a piston is installed on the push rod, the lower end of the push rod is connected with an impact head, and the impact head is fixed on the outer cylinder through the shearing pin; and an O-shaped sealing ring is respectively arranged between the piston and the lower sampling cylinder, the push rod and the piston, the push rod and the impact head and between the impact head and the impact outer cylinder. The impact-type underground sampling device is used for open well test sampling, a sampling hole is arranged on the bottom end of the sampling device, so that the sampling device can approach the production layer as far as possible, the sampling precision is improved, and the sampling device is convenient and reliable to sample.
Description
Technical field
The utility model relates to a kind of oil gas water well formation testing that is used for, the impacting type downhole sampler that the stratum produced fluid is taken a sample.
Background technology
In the conventional formation test tool, subsidiary on testing valve have downhole sampler, sampler must be positioned at more than the packer, at closing well simultaneously, obtains the formation fluid downhole sample, carries out analytical test after taking ground to.But in formation testing, part payzone position is very low, and conventional downhole fluid sampler sample inflow channel position is higher, and is far away apart from payzone, is difficult to accurately get corresponding payzone fluid sample.Therefore reduce the sampler sample and flow into channel position, make it as far as possible then can to improve downhole fluid sampling accuracy near payzone.The subsidiary sampler runner of conventional formation test tool institute is crooked, can not be used to carry out the operation of acid fracturing measures to reform.
In the formation testing, currently used throwing type downhole sampler adopts the pipe nipple of taking a sample to combine with the bump cover, forms the bottom sampling instrument, and piston is cut off shear pin between lock sleeve and lock dog under the inflow sample effect, loosen piston, closes sample tap.This sampling instrument complex structure, instrument shakes greatly in the impact process, the setting-out inconvenient operation, the sampling pipe nipple overlaps the employing steel ball with bump to be fixed, and is difficult for mounting or dismounting.
Summary of the invention
The purpose of the utility model is: accurate, easy to operate, simple and reliable for structure to stratum payzone fluid sampling in the oil gas water well formation testing, the spy provides a kind of impacting type downhole sampler.
In order to achieve the above object; The utility model adopts following technical scheme: a kind of impacting type downhole sampler; Form by top connection, last sampling tube, push rod, lock dog, following sampling tube, piston, bump urceolus and bump head; It is characterized in that: top connection and last sampling tube upper end are with being threaded employing square-section, junction sealing ring; Last sampling tube lower end and lock dog be with being threaded and sealing, and lock dog lower end and following sampling tube be with being threaded and sealing, following sampling tube lower end again with the bump urceolus with being threaded and sealing, the formation monolithic case; Its inner push rod of installing, push rod is fixedly connected with lock dog with shear pin A, and piston is installed on push rod, connects the bump head in the push rod lower end, and the bump head is fixed on the bump urceolus with shear pin B; Install between piston and following sampling tube between piston exterior seal ring, push rod and piston space installation piston inner seal ring, push rod and bump head an installation bump exterior seal ring between push rod seal circle, bump head and bump urceolus is installed, piston exterior seal ring, piston inner seal ring, push rod seal circle, a bump exterior seal ring are all used the O RunddichtringO; Sampler is carried to the setting-out of ground, and the oiling joint is installed in the dismounting top connection, and dismounting bump head is installed access sleeve.
The step axle is adopted on the utility model push rod top, is drilled with three and is uniformly distributed with hydraulic oil channel; The push rod middle part is provided with the shaft shoulder, and the push rod bottom is provided with sealing ring; The bump head is fixed in the bump urceolus through shear pin; The bump head is provided with the slip locating slot, and the bump primary drying hits, and cuts off pin, and sample liquids flows out along the perforate of bump cover in the slip locating slot, reduces the sampler impact shock; Carry on the sampler in the process, the bump head is fixed in the bump urceolus through slide jaw and locating slot; Sampler is carried to the setting-out of ground, and the oiling joint is installed in dismounting top connection earlier, and dismounting bump head is installed access sleeve, and upwards sampling tube injects hydraulic oil then, promotes descent of piston, and fluid sample is extruded sampling tube.
The beneficial effect of the utility model is: this downhole sampler adopts the monolithic push rod to accomplish sampling action and self-styled action, and is simple in structure; Adopt the high-performance sealing ring, good seal performance; Thief hole is positioned at the sampler bottom, and sampling accurately;
Adopt special-purpose oiling joint and access sleeve, setting-out is simple to operate.
Description of drawings
Fig. 1 is the utility model impacting type downhole sampler assembly structure sketch map.
Fig. 2 is the utility model bump header structure sketch map.
Fig. 3 carries the setting-out structural representation to ground on the utility model.
Shown in the figure: 1-top connection, 2-square-section sealing ring, the last sampling tube of 3-, 4-push rod, 5-lock dog; Sampling tube under the 6-, 7-shear pin A, 8-piston exterior seal ring, 9-piston inner seal ring, 10-piston; 11-clashes into urceolus, and 12-clashes into an exterior seal ring, 13-push rod seal circle, 14-shear pin B; The 15-slide jaw, 16-clashes into head, 17-oiling joint, 18-access sleeve.
The specific embodiment
The utility model is installed by top connection, last sampling tube, lock dog, following sampling tube, bump urceolus, push rod, piston, bump head, shear pin, 0 RunddichtringO and square-section sealing ring and is constituted.
Below in conjunction with accompanying drawing the utility model is described further:
As shown in Figure 1, this downhole sampler is an impacting type, and top connection 1 is threaded with last sampling tube 3; Last sampling tube 3 is threaded with lock dog 5; Lock dog 5 is threaded with following sampling tube 6, and following sampling tube 6 is threaded with bump urceolus 11, and square-section sealing ring 2 is adopted in the junction; Piston 10 and following sampling tube 6, push rod 4 and piston 10, push rod 4 and bump 16, bump 16 seal with bump urceolus 11 employing O RunddichtringOs; Push rod 4 and lock dog 5 adopts shear pin A7 to be fixedly connected, bump 16 with clash into urceolus 11 and be fixedly connected by shear pin B14.
The utility model injecting hydraulic oil in the sampling tube 6 down, by the tubing string G.I.H, falls into the shaft bottom payzone over against screen casing earlier in the process of driving a well.Sampler bottom bump 16 is clashed into by the screen casing central tray, cuts off and clashes into shear pin B14 between urceolus, the up downhole fluid sample flow channel of opening; Flowing into sample strain, to promote piston 10 up, and piston 10 promotes down in the sampling tube 6 hydraulic oil and is uniformly distributed with boring through push rod 4 and 5 toroidal cavities of lock dog, push rod 4 three on tops and gets into upward sampling tube 3 and take a sample; Piston 10 is up near the push rod 4 middle part shaft shoulders, promote that push rod 4 is cut off and lock dog between shear pin A7, push rod 4 is flowing under the sample strain effect uply, sealing sample flow channel keeps sample strain, accomplishes sampling.
Sampling is carried on the sampler in the process after finishing, and the bump head is fixed in the bump urceolus by a slide jaw 15 and a bump slip locating slot (as shown in Figure 2).
As shown in Figure 3, the sampler sampling finishes to carry to ground on the back, carries out setting-out; Oiling joint 17 is installed in dismounting top connection 1, and dismounting bump 16 is installed access sleeve 18; Upwards inject hydraulic oil in the sampling tube 3, it is descending to promote piston 10, and fluid sample is extruded sampling tube 6 down.
Claims (3)
1. impacting type downhole sampler; Form by top connection, last sampling tube, push rod, lock dog, following sampling tube, piston, bump urceolus and bump head; It is characterized in that: top connection (1) and last sampling tube (3) upper end is with being threaded junction employing square-section sealing ring (2); Last sampling tube (3) lower end and lock dog (5) be with being threaded and sealing, and lock dog (5) lower end and following sampling tube (6) be with being threaded and sealing, following sampling tube (6) lower end again with bump urceolus (11) with being threaded and sealing, the formation monolithic case; Its inner push rod (4) of installing; Push rod (4) is fixedly connected with lock dog (5) with shear pin A (7); Go up installation piston (10) at push rod (4), connect bump head (16) in push rod (4) lower end, bump (16) is fixed on the bump urceolus (11) with shear pin B (14); Install between piston (10) and following sampling tube (6) to install between piston exterior seal ring (8), push rod (4) and piston (10) to install between piston inner seal ring (9), push rod (4) and bump head (16) a bump exterior seal ring (12) is installed between push rod seal circle (13), bump head (16) and bump urceolus (11), piston exterior seal ring (8), piston inner seal ring (9), push rod seal circle (13), a bump exterior seal ring (12) are all used the O RunddichtringO; Sampler is carried to the setting-out of ground, and oiling joint (17) is installed in dismounting top connection (1), and dismounting bump head (16) is installed access sleeve (18).
2. according to the said impacting type downhole sampler of claim 1, it is characterized in that: the step axle is adopted on above-mentioned push rod (4) top, is drilled with three and is uniformly distributed with hydraulic oil channel; Push rod (4) middle part is provided with the shaft shoulder.
3. according to the said impacting type downhole sampler of claim 1, it is characterized in that: bump head (16) is provided with the slip locating slot, and bump head (16) is fixed on the bump urceolus (11) with slide jaw (15) and slip locating slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200002662U CN202381090U (en) | 2012-01-04 | 2012-01-04 | Impact-type underground sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200002662U CN202381090U (en) | 2012-01-04 | 2012-01-04 | Impact-type underground sampling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202381090U true CN202381090U (en) | 2012-08-15 |
Family
ID=46629603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200002662U Expired - Fee Related CN202381090U (en) | 2012-01-04 | 2012-01-04 | Impact-type underground sampling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202381090U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106285663A (en) * | 2016-09-13 | 2017-01-04 | 中国石油集团渤海钻探工程有限公司 | Retrievable type bottom-hole sampling instrument |
| CN108716996A (en) * | 2018-07-17 | 2018-10-30 | 湖南唯科拓石油科技服务有限公司 | A kind of down-hole liquid sampling instrument |
| CN108798663A (en) * | 2017-04-28 | 2018-11-13 | 中石化石油工程技术服务有限公司 | A kind of shale formation drilling and coring delivery hydrocarbon entrapment device |
| CN109577973A (en) * | 2018-11-01 | 2019-04-05 | 中国石油天然气集团有限公司 | A kind of situ downhole brill survey device |
| CN112211629A (en) * | 2019-07-10 | 2021-01-12 | 中国石油化工股份有限公司 | Mixed slurry obtaining device and using method thereof |
-
2012
- 2012-01-04 CN CN2012200002662U patent/CN202381090U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106285663A (en) * | 2016-09-13 | 2017-01-04 | 中国石油集团渤海钻探工程有限公司 | Retrievable type bottom-hole sampling instrument |
| CN108798663A (en) * | 2017-04-28 | 2018-11-13 | 中石化石油工程技术服务有限公司 | A kind of shale formation drilling and coring delivery hydrocarbon entrapment device |
| CN108716996A (en) * | 2018-07-17 | 2018-10-30 | 湖南唯科拓石油科技服务有限公司 | A kind of down-hole liquid sampling instrument |
| CN109577973A (en) * | 2018-11-01 | 2019-04-05 | 中国石油天然气集团有限公司 | A kind of situ downhole brill survey device |
| CN112211629A (en) * | 2019-07-10 | 2021-01-12 | 中国石油化工股份有限公司 | Mixed slurry obtaining device and using method thereof |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120815 Termination date: 20130104 |