CN205297466U - It washes valve to be applicable to hollow sucker rod heat of directional well - Google Patents
It washes valve to be applicable to hollow sucker rod heat of directional well Download PDFInfo
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- CN205297466U CN205297466U CN201520947115.1U CN201520947115U CN205297466U CN 205297466 U CN205297466 U CN 205297466U CN 201520947115 U CN201520947115 U CN 201520947115U CN 205297466 U CN205297466 U CN 205297466U
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Abstract
The utility model provides an it washes valve to be applicable to hollow sucker rod heat of directional well, this heat is washed the valve and is included the top connection, and liquid nipple joint and lower clutch are crossed the both ends of liquid nipple joint and are connected with top connection, lower clutch respectively excessively, are provided with the pressure cap excessively in the liquid nipple joint upper end, press the cap lower extreme to be connected with the ball seat main part, the lower extreme of ball seat main part is connected with the valve ball, be provided with the valve ball centralizer between valve ball and the lower clutch, the cover is equipped with the spring on the valve ball centralizer, press cap, ball seat main part, valve ball, valve ball centralizer and spring all to be located the liquid nipple joint. The utility model discloses valve and hollow sucker rod mating reaction are washed to heat, do not receive the available inclined shaft of hole deviation restriction also to can be used to the straight well. The utility model discloses utilize empty core rod to pour into the heat carrier into, wash valve oil pipe on the pump through heat and establish positive circulation system with empty core rod to hollow sucker rod inner chamber is passed through to the continuous or mode of being interrupted, improves the pit shaft temperature to pouring into heat carrier (hot water, heat oil, steam) in the well into, reduces crude oil viscosity, elimination pit shaft wax deposition.
Description
Technical field
This utility model belongs to oil field development petroleum production engineering field, is applicable to directional well hollow rod heated scrubing valve particularly to one.
Background technology
Hot-washing wax remover is the wax removal technology that oil well is the most frequently used, on-the-spot basic employing backwash method, namely injects a certain amount of high-temp liquid to oil casing annular space, carries out heat exchange with oil pipe from outside to inside and make wax deposition come off and drain into ground. The shortcoming of this thermal washing method is to need a large amount of thermal washing liquid, and thermal loss is big, and the thermal efficiency is low, to the easy polluted reservoir of low pressure oil well, causes the phenomenons such as the underproduction, not fuel-displaced and holddown.
At present this technology is mainly used on straight well, but exists for directional well heated scrubing valve and be not closed completely, open the problems such as pressure is high, for this, devise hollow rod heated scrubing valve for directional well, foot thermal washing efficiency is high, the not requirement such as polluted reservoir.
Utility model content
In order to overcome the inefficient problem with polluted reservoir of existing thermal washing, this utility model provides one to be applicable to directional well hollow rod heated scrubing valve, this utility model utilizes hollow stem to inject heat carrier, direct circulation system is set up by heated scrubing valve oil pipe and hollow stem on pump, in continuously or discontinuously mode by hollow rod inner chamber, in well, inject heat carrier (hot water, deep fat, steam) improve temperature in wellbore, reduce viscosity of crude, eliminate wax deposition. This utility model and hollow rod mating reaction, do not limited by hole deviation, available inclined shaft, it is also possible in straight well.
The technical solution adopted in the utility model is:
A kind of suitable in directional well hollow rod heated scrubing valve, including top connection, cross liquid pipe nipple and lower contact, the described two ends crossing liquid pipe nipple are connected with top connection, lower contact respectively, described mistake in liquid pipe nipple upper end is provided with pressure cap, described pressure cap lower end is connected to ball seat main body, the lower end of described ball seat main body is connected to valve ball, valve ball centralizer it is provided with between described valve ball and lower contact, being arranged with spring on described valve ball centralizer, described pressure cap, ball seat main body, valve ball, valve ball centralizer and spring were respectively positioned in liquid pipe nipple.
One end of described spring is fixed on valve ball centralizer, and the other end is fixed in lower contact.
Described top connection is connected with hollow rod.
Described lower contact connecting with pumping rod.
Described heated scrubing valve overall length is 460mm.
The beneficial effects of the utility model:
This utility model heated scrubing valve, with hollow rod mating reaction, do not limited by hole deviation, available inclined shaft, it is also possible in straight well, this utility model utilizes hollow stem to inject heat carrier, set up direct circulation system by heated scrubing valve oil pipe and hollow stem on pump, in continuously or discontinuously mode by hollow rod inner chamber, in well, inject heat carrier (hot water, deep fat, steam) improve temperature in wellbore, reduce viscosity of crude, eliminate wax deposition.
Below in conjunction with the drawings and the specific embodiments, this utility model is described further.
Accompanying drawing explanation
Fig. 1 is that this utility model one is applicable to directional well hollow rod heated scrubing valve.
In figure, 1-top connection; 2-pressure cap; 3-ball seat main body; 4-valve ball; 5-crosses liquid pipe nipple; 6-valve ball centralizer; 7-spring; 8-lower contact.
Detailed description of the invention
Embodiment 1:
In order to overcome the inefficient problem with polluted reservoir of existing thermal washing, this utility model provides one to be applicable to directional well hollow rod heated scrubing valve, this utility model utilizes hollow stem to inject heat carrier, direct circulation system is set up by heated scrubing valve oil pipe and hollow stem on pump, in continuously or discontinuously mode by hollow rod inner chamber, in well, inject heat carrier (hot water, deep fat, steam) improve temperature in wellbore, reduce viscosity of crude, eliminate wax deposition. This utility model and hollow rod mating reaction, do not limited by hole deviation, available inclined shaft, it is also possible in straight well.
A kind of suitable in directional well hollow rod heated scrubing valve, including top connection 1, cross liquid pipe nipple 5 and lower contact 8, the described two ends crossing liquid pipe nipple 5 are connected with top connection 1, lower contact 8 respectively, described mistake in liquid pipe nipple 5 upper end is provided with pressure cap 2, described pressure cap 2 lower end is connected to ball seat main body 3, the lower end of described ball seat main body 3 is connected to valve ball 4, it is provided with valve ball centralizer 6 between described valve ball 4 and lower contact 8, being arranged with spring 7 on described valve ball centralizer 6, described pressure cap 2, ball seat main body 3, valve ball 4, valve ball centralizer 6 and spring 7 were respectively positioned in liquid pipe nipple 5.
Directional well hollow rod heated scrubing valve is mainly made up of top connection 1, valve ball 4, valve ball centralizer 6, spring 7, excessively liquid pipe nipple 5, lower contact 8. Wherein top connection 1 is connected with hollow rod, lower contact 8 connects with sucker rod, during hot-washing wax remover, fluid is entered by hollow rod, opens under pressure at 1MPa, and spring 7 shrinks, valve ball 4 is opened, fluid passed through liquid pipe nipple 5 and entered oil pipe, formed direct circulation, lifted entrance ground flow in the lump with oil liquid in pipe. Valve ball centralizer 6 all can automatic centering in different hole angle situations, it is ensured that during thermal washing, valve ball is normally-open and after loop ends, valve ball 4 is closed. After the end of job, valve ball 4 is closed rapidly under spring 7 acts on, and makes oil well return to normal production state. This design simple in construction, during hot-washing wax remover and saving water resource, prevents from again pouring in down a chimney oil reservoir.
Embodiment 2:
On basis based on embodiment 1, in the present embodiment, one end of spring 7 is fixed on valve ball centralizer 6, and the other end is fixed in lower contact 8.
Top connection 1 is connected with hollow rod.
Lower contact 8 connecting with pumping rod.
This utility model directional well heated scrubing valve, mainly by top connection 1, pressure cap 2, ball seat main body 3, valve ball 4, cross liquid pipe nipple 5, valve ball centralizer 6, spring 7, lower contact 8 forms.Heated scrubing valve overall length is 460mm. The diameter of pressure cap 2 is more than the diameter of valve ball 4, according to the oil well paraffinication well section degree of depth during design, it is determined that the depth of setting of heated scrubing valve, generally from well head about 500m. Heated scrubing valve top all adopts hollow rod, top connection 1 connect, lower contact 8 connecting with pumping rod. Thermal washing liquid is entered by hollow rod, and under the unlatching pressure condition overcoming valve ball 4, valve ball 4 is opened, and enters oil pipe by crossing liquid pipe nipple 5, forms direct circulation, complete hot cleanout and paraffin removal of oil well. After the end of job, valve ball 4 is closed rapidly under spring 7 acts on, and makes oil well return to normal production state.
Claims (5)
1. one kind is applicable to directional well hollow rod heated scrubing valve, it is characterized in that: this heated scrubing valve includes top connection (1), cross liquid pipe nipple (5) and lower contact (8), described cross liquid pipe nipple (5) two ends respectively with top connection (1), lower contact (8) connects, described mistake in liquid pipe nipple (5) upper end is provided with pressure cap (2), described pressure cap (2) lower end is connected to ball seat main body (3), the lower end of described ball seat main body (3) is connected to valve ball (4), valve ball centralizer (6) it is provided with between described valve ball (4) and lower contact (8), described valve ball centralizer (6) is arranged with spring (7), described pressure cap (2), ball seat main body (3), valve ball (4), valve ball centralizer (6) and spring (7) were respectively positioned in liquid pipe nipple (5).
2. one according to claim 1 is applicable to directional well hollow rod heated scrubing valve, it is characterised in that: one end of described spring (7) is fixed on valve ball centralizer (6), and the other end is fixed in lower contact (8).
3. one according to claim 1 is applicable to directional well hollow rod heated scrubing valve, it is characterised in that: described top connection (1) is connected with hollow rod.
4. one according to claim 1 is applicable to directional well hollow rod heated scrubing valve, it is characterised in that: described lower contact (8) connecting with pumping rod.
5. one according to claim 1 is applicable to directional well hollow rod heated scrubing valve, it is characterised in that: described heated scrubing valve overall length is 460mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520947115.1U CN205297466U (en) | 2015-11-25 | 2015-11-25 | It washes valve to be applicable to hollow sucker rod heat of directional well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520947115.1U CN205297466U (en) | 2015-11-25 | 2015-11-25 | It washes valve to be applicable to hollow sucker rod heat of directional well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205297466U true CN205297466U (en) | 2016-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520947115.1U Active CN205297466U (en) | 2015-11-25 | 2015-11-25 | It washes valve to be applicable to hollow sucker rod heat of directional well |
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| CN (1) | CN205297466U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105401916A (en) * | 2015-11-25 | 2016-03-16 | 中国石油天然气股份有限公司 | Hollow sucker rod thermal-washing valve suitable for directional well |
| CN109469461A (en) * | 2018-12-06 | 2019-03-15 | 中国石油天然气股份有限公司 | A kind of horizontal well in segments is handled up sand control installation |
-
2015
- 2015-11-25 CN CN201520947115.1U patent/CN205297466U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105401916A (en) * | 2015-11-25 | 2016-03-16 | 中国石油天然气股份有限公司 | Hollow sucker rod thermal-washing valve suitable for directional well |
| CN109469461A (en) * | 2018-12-06 | 2019-03-15 | 中国石油天然气股份有限公司 | A kind of horizontal well in segments is handled up sand control installation |
| CN109469461B (en) * | 2018-12-06 | 2023-09-26 | 中国石油天然气股份有限公司 | Sand control device is hugged and disbursed in horizontal well segmentation |
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