CN201347732Y - Non-pumping off continuous sand washing device for oil water well - Google Patents
Non-pumping off continuous sand washing device for oil water well Download PDFInfo
- Publication number
- CN201347732Y CN201347732Y CNU2009200989920U CN200920098992U CN201347732Y CN 201347732 Y CN201347732 Y CN 201347732Y CN U2009200989920 U CNU2009200989920 U CN U2009200989920U CN 200920098992 U CN200920098992 U CN 200920098992U CN 201347732 Y CN201347732 Y CN 201347732Y
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- blowout preventer
- self
- central tube
- sand washing
- circulation
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Abstract
A non-pumping off continuous sand washing device for oil water well solves the problems of single liquid feeding and intermittent opening type cycling of the prior sand washing device, and is characterized in that a recyclable self-close blowout preventer is connected with a semi-close blowout preventer (1), and an oil pipe penetrating the semi-close blowout preventer (1) and the recyclable self-close blowout preventer is connected with a two-way single current valve. The device has the characteristics of two-way liquid feeding and continuous uninterrupted close recycling.
Description
Technical field:
The utility model relates to down-hole construction operation achievement used sand flushing device, especially not termination of pumping of oil-water well continuous sand flushing device in the oil recovery field, oil field.
Background technology:
In oil recovery field, oil field, adopt liquid measure in order to improve, often need oil-water well is carried out the sand washing construction operation.According to the investigation in early stage, well workover construction team under the Daqing oil field, in carrying out oil-water well sand washing work progress, all adopt single feed liquor, termination of pumping makes up a joint and is interrupted the sand washing operating type, this kind sand washing mode can't realize continuously uninterrupted circulation, exist to connect and change the sedimentation of single oil pipe termination of pumping overlong time sandinteeter and easily cause lock of tool drilling, can't realize sealing and circulating when making up a joint again, sand cleaning fluid return tell overflow that ground pollutes, sandinteeter falls after rise and causes the repetition sand washing to prolong the problem of construction period, influenced operating efficiency.
The utility model content:
For the problem that solves the existing single feed liquor of sand flushing device, is interrupted open circulation, the utility model provides a kind of not termination of pumping of oil-water well continuous sand flushing device, and this not termination of pumping of oil-water well continuous sand flushing device has the characteristics of two-way feed liquor and continuously uninterrupted sealing and circulating.
The technical solution of the utility model is: this not termination of pumping of oil-water well continuous sand flushing device comprises half envelope blowout preventer, partly seals and is connected with self-sealing blowout preventer capable of circulation on the blowout preventer, passes on the oil pipe of half envelope blowout preventer and self-sealing blowout preventer capable of circulation and is connected with two-way ball-and-seat;
Described self-sealing blowout preventer capable of circulation is made up of housing, self-styled plug, housing shaft is to the through hole that passes oil pipe is arranged, there is the interface that is connected with the fluid power distributor by pipeline the housing side, and self-styled plug is fixed on the interior lower surface of housing, and self-styled plug axially has the through hole with the oil pipe interference fit;
Described two-way ball-and-seat is made up of seating nipple, central tube and sliding sleeve, lower contact on the seating nipple band, on the work barrel inlet opening is arranged radially, there is the lid of band edge eaves the central tube upper end, inlet opening is radially arranged on the center tube wall, the central tube lower end is connected in the seating nipple lower contact, and sliding sleeve is slidingly connected at outside the central tube, and the sealing ring that seals mutually with seating nipple and central tube is arranged inside and outside the sliding sleeve.
The utlity model has following beneficial effect: this not termination of pumping of oil-water well continuous sand flushing device partly seals blowout preventer and self-sealing blowout preventer capable of circulation because employing connects successively on big four, the structure that is used in combination that connects two-way ball-and-seat at the sand washing tubing string, utilization is passed through radially, vertical two-way independent feed liquor, vertically the operating principle of fluid realizes the circulating system that two-way foundation is independent.During normal sand washing construction operation, sand cleaning fluid is through the fluid power distributor two-way ball-and-seat that leads, and masterpiece is used for two way seal sliding sleeve upper surface, makes it descendingly expose inlet opening on the central tube, and sand cleaning fluid is realized the direct circulation sand washing in the central tube inlet opening enters the sand washing tubing string; Before connecing down single oil pipe, close half envelope blowout preventer, the fluid power distributor with the sand cleaning fluid conductance to encircling the self-sealing blowout preventer interface, fluid power inlet opening on self-sealing blowout preventer capable of circulation interface channel, two-way ball-and-seat seating nipple acts on the sliding sleeve lower surface, make its up inlet opening that exposes on the central tube, sand cleaning fluid enters in the sand washing tubing string through the inlet opening of central tube, realizes the direct circulation sand washing.In this way until sand washing to projected depth.
Description of drawings:
Accompanying drawing 1 is the utility model structural representation.
1-partly seals blowout preventer among the figure, 2-housing, the self-styled plug of 3-, 4-interface, 5-seating nipple, 6-central tube, 7-sliding sleeve.
The specific embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing:
Shown in accompanying drawing, this not termination of pumping of oil-water well continuous sand flushing device comprises half envelope blowout preventer 1, partly seals and is connected with self-sealing blowout preventer capable of circulation on the blowout preventer 1, passes on the oil pipe 7 of half envelope blowout preventer 1 and self-sealing blowout preventer capable of circulation and is connected with two-way ball-and-seat;
Described self-sealing blowout preventer capable of circulation is made up of housing 2, self-styled plug 3, housing 2 axially has the through hole that passes oil pipe, there is the interface 4 that is connected with the fluid power distributor by pipeline housing 2 sides, self-styled plug 3 is fixed on the housing 2 interior lower surfaces, and self-styled plug 3 axially has the through hole with oil pipe 7 interference fit;
Described two-way ball-and-seat is by seating nipple 5, central tube 6 and sliding sleeve 7 are formed, seating nipple 5 is with lower contact, last lower contact works the effect of connecing, on seating nipple 5 walls inlet opening is arranged radially, there is the lid of band edge eaves central tube 6 upper ends, cap seal closes central tube 6 upper ends, make sand cleaning fluid enter the sand washing tubing string through inlet opening, the limit eaves that covers works to prevent that sliding sleeve 7 from skidding off central tube 6, on central tube 6 walls inlet opening is arranged radially, when making up a joint, by radially inlet opening commutation on seating nipple 5 and central tube 6 walls, central tube 6 lower ends are connected in seating nipple 5 lower contacts, and sliding sleeve 7 is slidingly connected at outside the central tube 6, and the sealing ring that seals mutually with seating nipple 5 and central tube 6 is arranged inside and outside the sliding sleeve 7.
During actual the use, with the construction screw bolt well, elicite sand face degree of depth 1166.1m after tripping out former well, the artificial bottom of a well is 1203.7m, and calculating the high 37.4m of sand post is example.Adopt this not termination of pumping of cover oil-water well continuous sand flushing composite set to carry out the sand washing operation, select clear water as sand cleaning fluid.
At first will partly seal blowout preventer 1 with bolt is connected on the big four, with bolt self-sealing blowout preventer capable of circulation is connected on the half envelope blowout preventer 1 again, transfer the sand washing tubing string at last, when the sand washing tubing string arrives the sand washing position, two-way ball-and-seat is connected on the sand washing tubing string, connects how many two-way ball-and-seats and depend on the sand washing degree of depth.The top connection of two-way ball-and-seat connects the sand washing pipeline, and fluid power distributor inflow direction is linked to each other with pump truck, and one of two water outlet pipeline is connected with two-way ball-and-seat upper accepting water is leading, and another valve with self-sealing blowout preventer interface 4 capable of circulation is connected.
When normal sand washing process, the sand washing tubing string is down to the precalculated position, open the valve and the well head big four load fluid outlet valve of blowout preventer interface 4 capable of circulation, fluid power distributor water supply direction is transferred to the water tap pipeline direction that connects on the two-way ball-and-seat, sand cleaning fluid is through the fluid power distributor two-way ball-and-seat that leads, sand cleaning fluid is during along the sand washing elbow to two-way ball-and-seat master inlet opening feed liquor, pump pressure 3Mpa, discharge capacity 20m
3/ h exports discharge capacity 20m this moment
3/ h.Fluid power acts on sliding sleeve 7 upper surfaces of two-way ball-and-seat, sand cleaning fluid is descending with the annular space promotion sliding sleeve 7 of central tube 6 through seating nipple 5, on central tube 6 walls radially inlet opening expose, sand cleaning fluid on central tube 6 walls radially inlet opening enter in the sand washing tubing string, realize the direct circulation sand washing.
Before connecing following single oil pipe, close half envelope blowout preventer 1, the self-styled plug of self-sealing blowout preventer capable of circulation 3 with partly seal the combination of blowout preventer 1 flashboard, in housing 2, produce annular seal space, fluid power distributor water supply direction is transferred on the self-sealing blowout preventer interface 4 capable of circulation, and when pump pressure reached 1.6MPa, two-way ball-and-seat began feed liquor, dismantle the sand washing elbow, box cupling top does not have sand cleaning fluid and overflows.Sand cleaning fluid enters the annular chamber space that produces in the housing 2 through self-sealing blowout preventer interface 4 capable of circulation, continue to enter into the space of 6 of seating nipple 5 and central tubes, sand cleaning fluid acts on sliding sleeve 7 lower surfaces, it is up to promote sliding sleeve 7, making on central tube 6 walls radially, inlet opening exposes, sand cleaning fluid enters in the sand washing tubing string, realizes the direct circulation sand washing.Pump pressure rises to 3MPa, discharge capacity 20m
3/ h exports discharge capacity 20m this moment
3/ h.From 1166.1～1203.7m, sand cleaning fluid 30m continuously circulates
3, sand washing drilling depth 37.4m goes out reservoir sand 0.47m
3
Having changed when single, open half envelope blowout preventer, fluid power distributor water supply direction is transferred to two-way ball-and-seat upper accepting water tap pipeline direction, repeat aforesaid operations until sand washing to projected depth.
Show through above evidence, this oil-water well not pumping off continuous sand washing device in use procedure Middle working stability, functional, can satisfy the requirement of oil-water well sand wash construction fully, and There is following some clear superiority.
One, using this oil-water well not in the middle of the pumping off continuous sand washing device sand washing work progress, by In having set up the uninterrupted circulatory system, realized that sand cleaning fluid keeps continual continuous circulation shape eventually Attitude prevents the falling of sandinteeter, has evaded the sedimentation of original scouring equipment sand washing sandinteeter and has caused card The risk of brill accident.
Two, use this oil-water well not pumping off continuous sand washing device sand washing construction connect the single process of changing In, sand cleaning fluid is through double-direction single-flow valve side inlet opening feed liquor, and oil pipe direction interface is in closed condition, Stop sand cleaning fluid to overflow, solved original scouring equipment and changed that sand cleaning fluid overflows in the single process connecing The problem that ground pollutes.
Three, using this oil-water well not in the pumping off continuous sand washing device sand washing work progress, because This device is in uninterrupted closed circulation duty, thus every rushed an oil pipe after, adjust Fluid power distributor sand cleaning fluid changes by the circulation of side inlet opening feed liquor, can not produce the sandinteeter sedimentation and ask Topic, the positive feed pathway of oil pipe is in closed condition simultaneously, can connect immediately and change single oil pipe, saves Circulation timei, shortened the engineering time, saved cost.
Thus this oil-water well not pumping off continuous sand washing device have two-way feed liquor and continuously not between The characteristics of disconnected sealing and circulating.
Claims (1)
1, a kind of not termination of pumping of oil-water well continuous sand flushing device, comprise half envelope blowout preventer (1), it is characterized in that: partly seal on the blowout preventer (1) and be connected with self-sealing blowout preventer capable of circulation, pass on the oil pipe of half envelope blowout preventer (1) and self-sealing blowout preventer capable of circulation and be connected with two-way ball-and-seat;
Described self-sealing blowout preventer capable of circulation is made up of housing (2), self-styled plug (3), housing (2) axially has the through hole that passes oil pipe, there is the interface (4) that is connected with the fluid power distributor by pipeline housing (2) side, self-styled plug (3) is fixed on the interior lower surface of housing (2), and self-styled plug (3) axially has the through hole with the oil pipe interference fit;
Described two-way ball-and-seat is made up of seating nipple (5), central tube (6) and sliding sleeve (7), seating nipple (5) is with lower contact, on seating nipple (5) wall inlet opening is arranged radially, there is the lid of band edge eaves central tube (6) upper end, on central tube (6) wall inlet opening is arranged radially, central tube (6) lower end is connected in seating nipple (5) lower contact, and sliding sleeve (7) is slidingly connected at outside the central tube (6), and the sealing ring that seals mutually with seating nipple (5) and central tube (6) is arranged inside and outside the sliding sleeve (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200989920U CN201347732Y (en) | 2009-01-21 | 2009-01-21 | Non-pumping off continuous sand washing device for oil water well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200989920U CN201347732Y (en) | 2009-01-21 | 2009-01-21 | Non-pumping off continuous sand washing device for oil water well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201347732Y true CN201347732Y (en) | 2009-11-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200989920U Expired - Fee Related CN201347732Y (en) | 2009-01-21 | 2009-01-21 | Non-pumping off continuous sand washing device for oil water well |
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| CN (1) | CN201347732Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102383750A (en) * | 2011-09-28 | 2012-03-21 | 张作阳 | Continuous positive and negative integrated sand washing device for oil well |
| CN103470199A (en) * | 2013-09-27 | 2013-12-25 | 中国石化江汉油田分公司井下作业处 | Reversing slide sleeve, sand washing operation device and sand washing operation method adopting same |
| CN106761549A (en) * | 2016-12-01 | 2017-05-31 | 中国石油天然气股份有限公司 | Self-balancing positive and negative bidirectional continuous circulation operation device |
| CN108798563A (en) * | 2018-05-28 | 2018-11-13 | 中石化石油工程技术服务有限公司 | Fluid-power motor and its anti-block apparatus |
| CN113882819A (en) * | 2021-11-02 | 2022-01-04 | 克拉玛依市恩能胜石油科技有限公司 | Deep well sand removal system |
-
2009
- 2009-01-21 CN CNU2009200989920U patent/CN201347732Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102383750A (en) * | 2011-09-28 | 2012-03-21 | 张作阳 | Continuous positive and negative integrated sand washing device for oil well |
| CN102383750B (en) * | 2011-09-28 | 2014-04-02 | 张作阳 | Continuous positive and negative integrated sand washing device for oil well |
| CN103470199A (en) * | 2013-09-27 | 2013-12-25 | 中国石化江汉油田分公司井下作业处 | Reversing slide sleeve, sand washing operation device and sand washing operation method adopting same |
| CN106761549A (en) * | 2016-12-01 | 2017-05-31 | 中国石油天然气股份有限公司 | Self-balancing positive and negative bidirectional continuous circulation operation device |
| CN108798563A (en) * | 2018-05-28 | 2018-11-13 | 中石化石油工程技术服务有限公司 | Fluid-power motor and its anti-block apparatus |
| CN113882819A (en) * | 2021-11-02 | 2022-01-04 | 克拉玛依市恩能胜石油科技有限公司 | Deep well sand removal system |
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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: 20091118 Termination date: 20180121 |