CN203161184U - Well-flushing anti-pollution acidification production tool - Google Patents
Well-flushing anti-pollution acidification production tool Download PDFInfo
- Publication number
- CN203161184U CN203161184U CN 201320089033 CN201320089033U CN203161184U CN 203161184 U CN203161184 U CN 203161184U CN 201320089033 CN201320089033 CN 201320089033 CN 201320089033 U CN201320089033 U CN 201320089033U CN 203161184 U CN203161184 U CN 203161184U
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- sleeve
- sliding sleeve
- acidifying
- well
- flushing
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Abstract
The utility model discloses a well-flushing anti-pollution acidification production tool and relates to the technical field of production tools for oil extraction for oil wells. The lower portion of an upper joint is connected with the upper portion of a sleeve, a sliding bush is arranged in the sleeve in a penetrating mode, the upper end of the sliding bush abuts against the lower end of the upper joint, the top of the sliding bush protrudes outwards to form a diameter expansion portion, a plurality of first through grooves are formed in the sliding bush from the top along the axial direction, and stop ends of the first through grooves are arranged above a filling hole of the sliding bush, the diameter expansion portion is in clearance fit with the inner wall of the sleeve, and the bottom surface of the diameter expansion portion of the sliding bush is an inclined plane and attached to the inner wall of the sleeve; the lower portion of the sleeve is in threaded connection with the upper portion of a lower joint; and a plurality of second through grooves are formed in the lower joint from the tail end of the lower joint along the axial direction, and stop ends of the second through grooves are arranged below a sealing ring of the lower joint, and the lower portion of the lower joint is in threaded connection with the upper portion of a connecting tube. The production tool is simple and easy to use, applicable to construction sites of well flushing and acidification operations, safe and reliable and capable of meeting requirements of production increasing measures such as unimpeded oil extraction, oil reservoir separation during well flushing, and service pipe column casting for oil reservoir general acidification.
Description
Technical field:
The utility model relates to well recovery tool of production technical field, is specifically related to the anti-pollution acidifying tool of production of a kind of well-flushing.
Background technology:
In the process of oil field development, need take well-flushing and acidifying because of a variety of causes the oil gas well is carried out operation, for low pressure sensitiveness oil reservoir, well-flushing easily causes oil reservoir and pollutes, and causes low yield.Still there is not at present a kind of product that also can carry out acidizing treatment for anti-pollution well-flushing.
The utility model content:
The purpose of this utility model provides the anti-pollution acidifying tool of production of a kind of well-flushing, it is simple and easy to use, be applicable to well-flushing and acidizing treatment job site, safe and reliable, can satisfy the demand that realizes in the oilfield development process that without hindrance oil recovery, well-flushing isolation oil reservoir, following service tube-column are carried out well stimulations such as the general acidifying of oil reservoir.
In order to solve the existing problem of background technology, the utility model is to adopt following technical scheme: it comprises a sealing off and covering anchorage and decides the A of mechanism, the B of acidifying mechanism, without hindrance production passage mechanism C, deblocking and salvaging mechanism, the downside that the seat sealing off and covering anchorage is decided the A of mechanism is provided with the B of acidifying mechanism, the downside of the B of acidifying mechanism is provided with without hindrance production passage mechanism C, the downside of without hindrance production passage mechanism C is provided with deblocking and salvaging mechanism, the described acidifying B of mechanism comprises top connection 1, sleeve 2, sliding sleeve 3, lower contact 4, tube connector 5, top connection 1 bottom is connected with sleeve 2 tops, sliding sleeve 3 is installed in the sleeve 2, sliding sleeve 3 upper ends withstand on top connection 1 lower end, sliding sleeve 3 tops outwards convex to form wide diameter portion, on the sliding sleeve 3 from its top along offering several first groove 6 on its axial direction, first groove, 6 not-go-end are arranged on sliding sleeve 3 pack holes top, sliding sleeve 3 wide diameter portions and sleeve 2 inwall matched in clearance, the wide diameter portion bottom surface of sliding sleeve 3 are the inclined-plane and fit with sleeve 2 inwalls; Sleeve 2 bottoms are threaded with lower contact 4 tops; Be arranged on lower contact 4 sealing rings below from its tail end along offering several second groove, 11, the second grooves, 11 not-go-end on its axial direction in the lower contact 4, lower contact 4 bottoms are threaded with tube connector 5 tops.
Described without hindrance production passage mechanism C comprises steel ball 7, retainer ring 8, ball valve 9 and valve body 10, tube connector 5 bottoms are connected with valve body 10 tops, steel ball 7 is set in retainer ring 8 inside, retainer ring 8 is threadedly connected to valve body 10 inside, ball valve 9 is sleeved on valve body 10 inside and its upper end is connected with retainer ring 8 lower ends, and valve body 10 tops are connected with tube connector 5 bottoms.
The utlity model has following advantage: be simple and easy to use, be applicable to well-flushing and acidizing treatment job site, safe and reliable, can satisfy the demand that realizes in the oilfield development process that without hindrance oil recovery, well-flushing isolation oil reservoir, following service tube-column are carried out well stimulations such as the general acidifying of oil reservoir.
Description of drawings:
Fig. 1 is structural representation of the present utility model,
Fig. 2 is the structural representation of the B of acidifying mechanism in the utility model,
Fig. 3 is the structural representation of without hindrance production passage mechanism C in the utility model.
The specific embodiment:
Referring to Fig. 1-Fig. 3, this specific embodiment adopts following technical scheme: it comprises a sealing off and covering anchorage and decides the A of mechanism, the B of acidifying mechanism, without hindrance production passage mechanism C, deblocking and salvaging mechanism, the downside that the seat sealing off and covering anchorage is decided the A of mechanism is provided with the B of acidifying mechanism, the downside of the B of acidifying mechanism is provided with without hindrance production passage mechanism C, the downside of without hindrance production passage mechanism C is provided with deblocking and salvaging mechanism, the described acidifying B of mechanism comprises top connection 1, sleeve 2, sliding sleeve 3, lower contact 4, tube connector 5, top connection 1 bottom is connected with sleeve 2 tops, sliding sleeve 3 is installed in the sleeve 2, sliding sleeve 3 upper ends withstand on top connection 1 lower end, sliding sleeve 3 tops outwards convex to form wide diameter portion, on the sliding sleeve 3 from its top along offering several first groove 6 on its axial direction, first groove, 6 not-go-end are arranged on sliding sleeve 3 pack holes top, sliding sleeve 3 wide diameter portions and sleeve 2 inwall matched in clearance, the wide diameter portion bottom surface of sliding sleeve 3 are the inclined-plane and fit with sleeve 2 inwalls; Sleeve 2 bottoms are threaded with lower contact 4 tops; Be arranged on lower contact 4 sealing rings below from its tail end along offering several second groove, 11, the second grooves, 11 not-go-end on its axial direction in the lower contact 4, lower contact 4 bottoms are threaded with tube connector 5 tops.
Described without hindrance production passage mechanism C comprises steel ball 7, retainer ring 8, ball valve 9 and valve body 10, tube connector 5 bottoms are connected with valve body 10 tops, steel ball 7 is set in retainer ring 8 inside, retainer ring 8 is threadedly connected to valve body 10 inside, ball valve 9 is sleeved on valve body 10 inside and its upper end is connected with retainer ring 8 lower ends, and valve body 10 tops are connected with tube connector 5 bottoms.
The operating principle of this specific embodiment is as follows:
Directly produce: be lowered to flow string and go into operation, crude oil leaves ball valve 9 from oil reservoir through lower contact 4 up promotion steel balls 7, moves to lower contact 4 diameter shrinkage parts, and crude oil enters ground system through flow string lifting extraction again by second groove 11 in the lower contact 4.
Well-flushing: flushing fluid promotes the steel ball seat of steel ball 7 to ball valve 9 during well-flushing; stop flushing fluid to enter the stratum; effectively protect oil reservoir; for the low pressure reservoir of setting up the circulation difficulty; upper tool part pressure system and bottom formation pressure system can be isolated; make the well-flushing circulation easily set up, improve well-flushing efficient, and can protect low pressure sensitiveness oil reservoir.
Acidifying: trip out flow string earlier, be lowered to the tubing string of bottom band acidifying intubate then, to the anti-pollution acidifying tool of production of well-flushing place, press down 3～5 tons, acidifying intubate assembly inserts sliding sleeve 3, and applied thrust sliding cover 3, since sliding sleeve 3 reduced diameter portion end faces with axially have certain angle, the radial component that produces in sliding sleeve 3 hole enlargement part lower surfaces divides large-diameter portion to shrink, and when the large-diameter portion branch is contracted to when identical with the bottom, sliding sleeve 3 is descending, open the acidifying passage and carry out the operation of acidifying mud, acidizing treatment finishes to carry acidifying intubate assembly on the back, and sliding sleeve 3 is up, closes acidifying mud passage, sliding sleeve 3 hole enlargements simultaneously partly enter sleeve 2 inner hole enlargement parts, stop sliding sleeve 3 descending, trip out acidifying intubate assembly tubing string, finish the pickling operation.
This specific embodiment has following advantage: be simple and easy to use, be applicable to well-flushing and acidizing treatment job site, safe and reliable, can satisfy the demand that realizes in the oilfield development process that without hindrance oil recovery, well-flushing isolation oil reservoir, following service tube-column are carried out well stimulations such as the general acidifying of oil reservoir.
Claims (2)
1. the anti-pollution acidifying tool of production of well-flushing, it comprises a sealing off and covering anchorage and decides mechanism (A), acidifying mechanism (B), without hindrance production passage mechanism (C), deblocking and salvaging mechanism, the downside that the seat sealing off and covering anchorage is decided mechanism (A) is provided with acidifying mechanism (B), the downside of acidifying mechanism (B) is provided with without hindrance production passage mechanism (C), the downside of without hindrance production passage mechanism (C) is provided with deblocking and salvaging mechanism, it is characterized in that described acidifying mechanism (B) comprises top connection (1), sleeve (2), sliding sleeve (3), lower contact (4), tube connector (5), top connection (1) bottom is connected with sleeve (2) top, sliding sleeve (3) is installed in the sleeve (2), sliding sleeve (3) upper end withstands on top connection (1) lower end, sliding sleeve (3) top outwards convexes to form wide diameter portion, sliding sleeve (3) is gone up from its top along offering several first groove (6) on its axial direction, first groove (6) not-go-end is arranged on sliding sleeve (3) pack hole top, sliding sleeve (3) wide diameter portion and sleeve (2) inwall matched in clearance, the wide diameter portion bottom surface of sliding sleeve (3) are the inclined-plane and fit with sleeve (2) inwall; Sleeve (2) bottom is threaded with lower contact (4) top; Lower contact (4) is gone up from its tail end along offering several second groove (11) on its axial direction, and second groove (11) not-go-end is arranged on lower contact (4) sealing ring below, and lower contact (4) bottom is threaded with tube connector (5) top.
2. the anti-pollution acidifying tool of production of well-flushing according to claim 1, it is characterized in that described without hindrance production passage mechanism (C) comprises steel ball (7), retainer ring (8), ball valve (9) and valve body (10), tube connector (5) bottom is connected with valve body (10) top, steel ball (7) is set in retainer ring (8) inside, retainer ring (8) is threadedly connected to valve body (10) inside, ball valve (9) is sleeved on valve body (10) inside and its upper end is connected with retainer ring (8) lower end, and valve body (10) top is connected with tube connector (5) bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320089033 CN203161184U (en) | 2013-02-27 | 2013-02-27 | Well-flushing anti-pollution acidification production tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320089033 CN203161184U (en) | 2013-02-27 | 2013-02-27 | Well-flushing anti-pollution acidification production tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203161184U true CN203161184U (en) | 2013-08-28 |
Family
ID=49022376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320089033 Expired - Lifetime CN203161184U (en) | 2013-02-27 | 2013-02-27 | Well-flushing anti-pollution acidification production tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203161184U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107816330A (en) * | 2016-09-13 | 2018-03-20 | 中国石油天然气股份有限公司 | A kind of well-flushing sealing device |
-
2013
- 2013-02-27 CN CN 201320089033 patent/CN203161184U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107816330A (en) * | 2016-09-13 | 2018-03-20 | 中国石油天然气股份有限公司 | A kind of well-flushing sealing device |
| CN107816330B (en) * | 2016-09-13 | 2019-10-11 | 中国石油天然气股份有限公司 | A kind of well-flushing sealing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130828 |