CN205297479U - Be used for oil gas well pit shaft drifting instrument - Google Patents
Be used for oil gas well pit shaft drifting instrument Download PDFInfo
- Publication number
- CN205297479U CN205297479U CN201521112002.6U CN201521112002U CN205297479U CN 205297479 U CN205297479 U CN 205297479U CN 201521112002 U CN201521112002 U CN 201521112002U CN 205297479 U CN205297479 U CN 205297479U
- Authority
- CN
- China
- Prior art keywords
- scraper
- pit shaft
- oil gas
- centralizer
- well pit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model provides a be used for oil gas well pit shaft drifting instrument, include from last fishing head, centralizer and the scraper that connects gradually extremely down, the centralizer is the column solid, the equidistant dovetail groove of outer surface distribution, scraper cavity, bottom center are equipped with the accessibke porosity, through -hole and capillary punch combination in both sides upper portion is equipped with in turn. The utility model discloses collect drifting, pipe cleaning and sample in an organic whole, reduce the operation frequency, simple structure, with low costs, the manufacturing of being convenient for practices thrift manufacturing cost, scraper and centralizer threaded connection, be convenient for the on the one hand collection of sample and the washing of collecting vat have realized circulation reuse, on the other hand scraper wearing and tearing back only needs to change this part, has reduced the input cost.
Description
Technical field
This utility model is specifically related to a kind of for oil gas water well pit shaft drifting instrument, mainly for the collection of the soft dirt removing of pit shaft and solid-state, liquid sample.
Background technology
Ordos Basin gas field of pacifying the border region is typical high sulfur-containing natural gas, highly mineralized formation brines gas field. In drifting operation process over the years, repeatedly occurring that pit shaft is hampered, meets card situation, the type that is hampered is mainly soft resistance, affects gas well and normally produces and the carrying out of downhole testing. Shaft in wall fouling, adherent corrosion product and external enter the pit shaft undergauge that causes such as well agent pyrolysis product, gas well fluid-carrying capability, test jobs and production capacity will be had a strong impact on and play, cause that gas well enters hydrops and Batch Process phase in advance.
Regular drifting is conducive to dynamically grasp pit shaft chocking-up degree; Regular snaking ensure pit shaft properly functioning meanwhile, it is capable to reduce produce frictional resistance, improve gas well deliverability; Dirt sample, water sample collection be convenient for the qualification of scale sample ingredient, the analysis of blocking mechanism, de-plugging medicament preferably and the determination on de-plugging opportunity. And drift size gauge tool function singleness conventional at present, snaking poor-performing, scraper 8 scaling effect is undesirable, the acquisition function etc. of n.s. Therefore, it is badly in need of developing the instrument of a kind of safety coefficient height, the pit shaft drifting of better performances, pipe cleaning and sampling.
Utility model content
The purpose of this utility model is to overcome pit shaft fouling to have a strong impact on gas well deliverability and the normal problem produced, and meets and is periodically subject to the maintainability operations such as pit shaft drifting, snaking and sampling, it is ensured that the unobstructed operation of pit shaft.
For this, this utility model provides a kind of for oil gas water well pit shaft drifting instrument, including the fishing head being sequentially connected with from top to bottom, centralizer and scraper, described centralizer is column solid, outer surface is distributed equally spaced dovetail groove, described scraper hollow, bottom centre is provided with accessibke porosity, and two upper lateral parts are alternately provided with inner via hole and pore group.
In described scraper, bottom is provided with collecting tank.
Described collecting tank is two, is symmetrically set in scraper central shaft both sides, and described collecting tank is that two hypotenuse upper ends of said two collecting tank are connected with accessibke porosity with scraper side for the downward right angled triangle of right-angle side and drift angle.
Described centralizer and scraper are threaded connection.
Described scraper outer surface is uniformly distributed 8 pore groups.
The beneficial effects of the utility model are:
1, the design of dovetail groove, pore group, collecting tank, greatly enhances scaling effect, and achieves the acquisition function of down-hole liquid, dirt sample;
2, drifting, pipe cleaning and sampling are integrated in one, reduce the operation frequency, save production cost;
3, scraper 8 is threadeded with centralizer, is easy to the collection of sample and the cleaning of collecting tank on the one hand, it is achieved that circulation recycling, only need to change this part on the other hand, reduce input cost after scraper abrasion;
4, this tool construction is simple, and cost is low, it is simple to processing and manufacturing.
It is described in further details below in conjunction with accompanying drawing.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1, fishing head; 2, centralizer; 3, dovetail groove; 4, accessibke porosity; 5, pore group; 6, inner via hole; 7, collecting tank; 8, scraper.
Detailed description of the invention
Embodiment 1:
Present embodiments provide a kind of for oil gas water well pit shaft drifting instrument, including the fishing head 1 being sequentially connected with from top to bottom, centralizer 2 and scraper 8, described centralizer 2 is column solid, outer surface is distributed equally spaced dovetail groove 3, described scraper 8 hollow, bottom centre is provided with accessibke porosity 4, and two upper lateral parts are alternately provided with inner via hole 6 and pore group 5.
The pit shaft drifting instrument principle of the present embodiment offer and work process:
With the connection of drifting tool string when fishing head 1 is for operation, and instrument surprisingly falls the salvaging after well. Centralizer 2, is mainly used in centralizing tool and drifting operation process removes the desilting of shaft in wall attachment, fouling and other products. The accessibke porosity 4 of scraper 8 bottom centre is that the tamper that drops enters the main thoroughfare of scraper 8 and circulation of air flow, inner via hole 6 discharges the main duct with circulation of air flow for tamper, guaranteeing that drifting is descending smoothly, the distribution of scraper 8 outer surface has pore group 5, acts on similar with nozzle.
Operationally, downhole well fluid and the tamper that drops enter in scraper 8 by accessibke porosity 4, in drifting process, the gentle stream of tamper is discharged by inner via hole 6, simultaneously, a part of fluid, by spraying to the space between scraper 8 and tube inner wall by pore group 5 high speed, reaches the effect of secondary cleaning and scale removal.
The pit shaft drifting instrument that the present embodiment provides can be periodically subject to pit shaft drifting, snaking maintainability operation, solves pit shaft fouling and has a strong impact on the problem such as gas well deliverability and normal production, it is ensured that the unobstructed operation of pit shaft.
Embodiment 2:
On the basis of embodiment 1, present embodiments provide a kind of as shown in Figure 1 for oil gas water well pit shaft drifting instrument, in described scraper 8, bottom is provided with collecting tank 7. Collecting tank 7 is two, is symmetrically set in scraper 8 central shaft both sides, and described collecting tank 7 is that two hypotenuse upper ends of said two collecting tank 7 are connected with accessibke porosity 4 with scraper 8 side for the downward right angled triangle of right-angle side and drift angle.
In the present embodiment, collecting tank 7 can be used for the storage of solid-state, liquid sample, and the sample being collected is removed scraper 8 after reaching ground and just can be collected.
The present embodiment implementation process:
Operationally, downhole well fluid and the tamper that drops enter in scraper 8 by accessibke porosity 4, in drifting process, fluid carries tamper and enters collecting tank 7, unnecessary tamper and fluid and air-flow are discharged by inner via hole 6, meanwhile, a part of fluid, by spraying to the space between scraper 8 and tube inner wall by pore group 5 high speed, reaches the effect of secondary cleaning and scale removal.
In the present embodiment, centralizer 2 and scraper 8 are threaded connection, and are easy to the collection of sample and the cleaning of collecting tank 7 on the one hand, it is achieved that circulation recycling, only need to change this part on the other hand, reduce input cost after scraper 8 abrasion.
Present embodiments provide a kind of integrated tool meeting oil gas water well pit shaft drifting, pipe cleaning and sampling demand. For being periodically subject to the maintainability operations such as pit shaft drifting, snaking and sampling, reduce the pit shaft coefficient of friction resistance, solve pit shaft fouling and have a strong impact on the problem such as gas well deliverability and normal production, it is ensured that the unobstructed operation of pit shaft. Sample analysis work can grasp individual well, block or even whole oil-gas reservoir characteristic of production dynamic, provides scientific basis to downhole scaling trend, corrosion product and the degree analyzing that shakes out. Along with the prolongation of Oil/gas Well production time, wellbore services will become later stage measure one important technology of volume increase, and can ensure that downhole testing dynamic monitoring and the smooth of plunger lift water pumping gas production project are implemented,
The present embodiment does not have specifically described part to broadly fall into known general knowledge and the known technology of the art, no longer describes in detail one by one herein.
Exemplified as above is only to illustration of the present utility model, is not intended that the restriction to protection domain of the present utility model, every belongs within protection scope of the present invention with the same or analogous design of this utility model.
Claims (5)
1. one kind is used for oil gas water well pit shaft drifting instrument, it is characterized in that: include the fishing head (1), centralizer (2) and the scraper (8) that are sequentially connected with from top to bottom, described centralizer (2) is column solid, outer surface is distributed equally spaced dovetail groove (3), described scraper (8) hollow, bottom centre is provided with accessibke porosity (4), and two upper lateral parts are alternately provided with inner via hole (6) and pore group (5).
2. one according to claim 1 is used for oil gas water well pit shaft drifting instrument, it is characterised in that: described scraper (8) interior bottom is provided with collecting tank (7).
3. one according to claim 2 is used for oil gas water well pit shaft drifting instrument, it is characterized in that: described collecting tank (7) is two, it is symmetrically set in scraper (8) central shaft both sides, described collecting tank (7) is that two hypotenuse upper ends of said two collecting tank (7) are connected with accessibke porosity (4) with scraper (8) side for the downward right angled triangle of right-angle side and drift angle.
4. one according to claim 2 is used for oil gas water well pit shaft drifting instrument, it is characterised in that: described centralizer (2) and scraper (8) are threaded connection.
5. the one according to any one of claim 1-4 is used for oil gas water well pit shaft drifting instrument, it is characterised in that: described scraper (8) outer surface is uniformly distributed 8 pore groups (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521112002.6U CN205297479U (en) | 2015-12-29 | 2015-12-29 | Be used for oil gas well pit shaft drifting instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521112002.6U CN205297479U (en) | 2015-12-29 | 2015-12-29 | Be used for oil gas well pit shaft drifting instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205297479U true CN205297479U (en) | 2016-06-08 |
Family
ID=56474179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521112002.6U Active CN205297479U (en) | 2015-12-29 | 2015-12-29 | Be used for oil gas well pit shaft drifting instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205297479U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111663914A (en) * | 2019-03-05 | 2020-09-15 | 中国石油天然气股份有限公司 | Sampling device |
| CN117127970A (en) * | 2023-10-26 | 2023-11-28 | 四川圣诺油气工程技术服务有限公司 | Liquid detection sampling open well integrated operation tool and use method |
-
2015
- 2015-12-29 CN CN201521112002.6U patent/CN205297479U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111663914A (en) * | 2019-03-05 | 2020-09-15 | 中国石油天然气股份有限公司 | Sampling device |
| CN117127970A (en) * | 2023-10-26 | 2023-11-28 | 四川圣诺油气工程技术服务有限公司 | Liquid detection sampling open well integrated operation tool and use method |
| CN117127970B (en) * | 2023-10-26 | 2024-01-12 | 四川圣诺油气工程技术服务有限公司 | Liquid detection sampling open well integrated operation tool and use method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203022643U (en) | Loss oil layer double-tube continuous sand removal tubular column | |
| CN205404570U (en) | A small -size footpath flow field device for monitoring of earth's surface soil erosion and water loss | |
| CN205297479U (en) | Be used for oil gas well pit shaft drifting instrument | |
| CN205038071U (en) | Water sample, dual -purpose collector of bed mud | |
| CN203634951U (en) | Automatic dirt-discharging cyclone separator | |
| RU2474672C1 (en) | Device for liquid cleaning in well shaft | |
| CN106053014B (en) | A kind of river erosion and deposition depth detection apparatus and detection method | |
| CN206258275U (en) | Portable seashore wetland sediment sampler | |
| CN208526169U (en) | Air deduster | |
| CN205532576U (en) | Floating oil well metering device of whirl | |
| CN107715515A (en) | A kind of new sewage oil interceptor frizing mud scraper | |
| CN204064991U (en) | Water Content in Oil on-Line Monitor Device | |
| CN206008312U (en) | A kind of automatic dust removing apparatus | |
| CN205796647U (en) | A kind of improved level pipe sedimentation tank | |
| CN208728234U (en) | A kind of petroleum pipeline inner wall grease cleaning plant | |
| RU184421U1 (en) | DEVICE FOR CLEANING THE WALLS OF OPERATIONAL COLUMNS AND BOTTOM FLUID | |
| CN207571120U (en) | A kind of easy cleaning and the good sewage detection device of collecting effect | |
| CN205626584U (en) | Sputum drainage ware | |
| CN204241266U (en) | A kind of surface water water sampler | |
| CN205078239U (en) | Oil pipe scraper in pit | |
| CN206769840U (en) | A kind of anti-blocking drilling rod | |
| CN111827998A (en) | Real-time sampling device for methane detection in fracturing flow-back fluid | |
| CN204422519U (en) | A kind of soil erosion amount monitoring facilities | |
| CN208545393U (en) | A kind of separatory oily-water seperating equipment of plants essential oil | |
| CN203929764U (en) | A kind of underground soil erosion monitoring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |