CN201537404U - Three-phase separator preventing corrosion due to acid and sulphur - Google Patents
Three-phase separator preventing corrosion due to acid and sulphur Download PDFInfo
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- CN201537404U CN201537404U CN2009202470824U CN200920247082U CN201537404U CN 201537404 U CN201537404 U CN 201537404U CN 2009202470824 U CN2009202470824 U CN 2009202470824U CN 200920247082 U CN200920247082 U CN 200920247082U CN 201537404 U CN201537404 U CN 201537404U
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- knockout drum
- separation tank
- valve
- acid
- high pressure
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Abstract
The utility model relates to a three-phase separator preventing corrosion due to acid and sulphur, which is applied to ground metering in oil testing construction at the oil and gas well containing sulfureted hydrogen and acid drainage well after acidification. The separation tank uses a horizontal circular tank, having an inlet pore at the end of the separation tank. The separation tank is fixed onto the seat with a frame. A liquid inlet is provided on one end of the separation tank, which is connected with a liquid inlet pipe, and a spherical valve is connected with the liquid inlet pipe. A pressure meter and a pressure valve are fixed onto the upper portion of the separation tank. An air discharge opening is provided on the other end of the separation tank, the air discharge opening is connected with a high pressure pipeline, a pore plate valve and a pneumatic regulation valve are connected with the high pressure pipeline. An oil discharging port and a water discharging port are provided on the other end of the separation tank, an exhaust discharging port is provided on the lower portion of the separation tank. A layer of 316L stainless steel inner layer is explosively welded on the inner wall of the separation tank. The effect is that the formation fluid containing sulfureted hydrogen and acid liquid with pH value of 2 to 3 can be independently metered under the condition that the sand content is less than 0.2%.
Description
Technical field
The utility model relates to the separation technology field of oil field mining liquid, be particularly related to the three phase separator of a kind of acid-proof, anti-sulfur corrosion, be applicable to the ground gage work of acid discharge well formation testing construction after sulfide hydrogen oil gas well, the acidifying, belong to a kind of testing equipment in oil gas well surveying examination field.
Background technology
At present, the oil field mining liquid three phase separator is widely used in after the formation fluid of flowing well is sprayed onto ground, oil gas water being carried out three phase separation in the oil gas well surveying examination process, measures the output of three-phase fluid respectively, and obtains the work of its chemistry, physical property.
The structure of existing import separator is very ripe.Its project organization and manufacturing process respectively have advantage.The principle that the horizontal three-phase separator application of weight is separated is separated oil gas water three phase.Inner chamber top at separator is air chamber, and the outlet of gas is on top; Weir plate is divided into grease chamber and hydroecium with the container bottom again, and the fluid that enters separator at first reaches hydroecium top, and under the gravity effect, water is separated to the bottom, and face waterborne is an oil, and the top of oil is natural gas.Here it is separator is with the principle of formation fluid three phase separation.
Along with deepening continuously of gas reservoir exploration exploitation, just become increasingly conspicuous at the contradiction that exploitation faced of hypotonic gas reservoir, especially at the hyposmosis carbonate gas reservoirs.Have 80% to rely on the fracture acidizing measure to obtain in 5,600,000 tons of output of system in Tahe Oilfield.Along with the extensive use of acidizing fracturing process, the workload of acid discharge ground metering also increases thereupon after the acidifying.Ground installation will be worked under low pH value situation for a long time, and particularly the operating mode of separator will be disliked slightly more.The existing in prior technology deficiency is: general shell separator, end socket are selected the SA-516-70 carbon steel for use, and container combination is partly selected the SA-105.6000# carbon steel for use, and the material of these materials meets the standard of anti-hydrogen sulfide fully.But the antiseptic property to acidic liquid can not satisfy production requirement.The first, it is very serious that inner body wall can be corroded under high temperature, high pressure.The second, each pipeline flows in acid solution, the quiescent period also can be corroded.The 3rd, each by-pass valve control comprises that ball valve and pneumatic control valve soak the corrosion that is subjected to equally in various degree in acid solution.There are three: the first, thickening in order to solve the method that above three point problem adopted in the past.Press NACE regulation body and reserve 3mm, pipeline is reserved 2mm, if thickening 5mm, equipment will be very big, very heavy.Rolled steel dosage increases, and cost also increases thereupon.And increasing reasonability, the aesthetic property of its layout, the thickness of by-pass valve control can decline to a great extent.The second, add undercoating.It is very low to increase the undercoating cost, puts at non-pressure vessel and adopts this technology in the acidic liquid corrosion mostly.But because the flowability of operating pressure, operating temperature and the liquid of separator, undercoating comes off easily.Under the situation of bubbling, ftracture, come off etc. in undercoating acidic liquid to the corrosion of container with uncontrollable.
The utility model content
The purpose of this utility model is: the three phase separator that the anti-sulfur corrosion of a kind of acid-proof is provided, be used for acid discharge well ground test after the acidifying, can reach at the pH value of formation fluid behind the acid fracturing under 2～3 the situation, carry out that oil gas water three phase is separated, metering, the service life of improving three phase separator.
The technical solution adopted in the utility model is: the three phase separator of the anti-sulfur corrosion of acid-proof, mainly form by knockout drum 1, high pressure line 2, base 3, Pressure gauge 5, safety valve 6, ball valve 7, pneumatic control valve 8 and orifice valve 9.Knockout drum 1 adopts horizontal round can, and there is manhole the end of knockout drum 1.It is characterized in that: knockout drum 1 is fixed on the base 3 that has framework.End at knockout drum 1 has inlet 4, and inlet 4 is connected with feed tube, is connected with ball valve 7 on the feed tube.Be fixed with Pressure gauge 5 and safety valve 6 on the top of knockout drum 1.Exhaust outlet 10 is arranged at the other end top at knockout drum 1, and exhaust outlet 10 connects high pressure line 2, is connected with orifice valve 9 and pneumatic control valve 8 at high pressure line 2.In the other end bottom of knockout drum 1 oil drain out 11 and discharge outlet 12 are arranged; In the bottom of knockout drum 1 sewage draining exit 13 is arranged.At knockout drum 1 inwall explosive welding one deck 316L stainless steel internal layer.Solved the three phase separation work of acid discharge well formation testing construction after h2s gas well, the acidifying effectively.Integral body has reached the purpose of anti-sulphur, acid-proof EE level like this.So both reduce cost, also reached the corrosion-resistant effect.
The beneficial effects of the utility model: the three phase separator of the anti-sulfur corrosion of the utility model acid-proof, it is material that knockout drum 1 is selected mild steel for use, knockout drum 1 inwall explosive welding one deck 316L stainless steel internal layer, parts such as pipeline are stainless steel or stainless steel composite material, anti-sulphur rank is the EE level, and hydrogen sulfide and acidic liquid are all had good corrosion-resisting function.Being not more than in sand content under 0.2% the situation all can separate measurement to containing the formation fluid that hydrogen sulfide and pH value reach 2～3 acidic liquid.
Description of drawings
Fig. 1 is the three phase separator structural representation of the anti-sulfur corrosion of the utility model acid-proof.
Among the figure, 1. knockout drum, 2. high pressure line, 3. base, 4. inlet, 5. Pressure gauge, 6. safety valve, 7. ball valve, 8. pneumatic control valve, 9. orifice valve, 10. exhaust outlet, 11. oil drain outs, 12. discharge outlet, 13. sewage draining exits.
The specific embodiment
Embodiment 1: the three phase separator with the anti-sulfur corrosion of an acid-proof is an example, and the utility model is described in further detail.
Consult Fig. 1.The three phase separator of the anti-sulfur corrosion of the utility model acid-proof is made up of knockout drum 1, high pressure line 2, base 3, Pressure gauge 5, safety valve 6, ball valve 7, pneumatic control valve 8 and orifice valve 9.Knockout drum 1 adopts horizontal round can, and there is a horizontal manhole right part of knockout drum 1.Knockout drum 1 is fixed on the base 3 that has framework.The parts on knockout drum 1 and knockout drum 1 top are in framework.
An inlet 4 is arranged at the left end top of knockout drum 1, and inlet 4 is connected with feed tube, is connected with ball valve 7 on the feed tube.Stratum just extraction liquid enters in the knockout drum 1 by ball valve 7 and feed tube.Be fixed with Pressure gauge 5 and safety valve 6 on the top of knockout drum 1.On the right-hand member top of knockout drum 1 exhaust outlet 10 is arranged, exhaust outlet 10 connects high pressure line 2, is connected with orifice valve 9 and pneumatic control valve 8 at high pressure line 2.The natural gas of separating is discharged by orifice valve 9 and pneumatic control valve 8.In the right-hand member bottom of knockout drum 1 oil drain out 11 and discharge outlet 12 are arranged, the oil of separating is discharged by oil drain out 11; The water of separating is discharged by discharge outlet 12.In the bottom of knockout drum 1 sewage draining exit 13 is arranged.
At knockout drum 1 inwall blast composite welding one deck 316L stainless steel internal layer.Reached the purpose of anti-sulphur, acid-proof EE level.
Claims (1)
1. the three phase separator of the anti-sulfur corrosion of an acid-proof, mainly by knockout drum (1), high pressure line (2), base (3), Pressure gauge (5), safety valve (6), ball valve (7), pneumatic control valve (8) and orifice valve (9) are formed, knockout drum (1) adopts horizontal round can, there is manhole the end of knockout drum (1), it is characterized in that: knockout drum (1) is fixed on the base (3) that has framework, end at knockout drum (1) has inlet (4), inlet (4) is connected with feed tube, be connected with ball valve (7) on the feed tube, be fixed with Pressure gauge (5) and safety valve (6) on the top of knockout drum (1), on the other end top of knockout drum (1) exhaust outlet (10) is arranged, exhaust outlet (10) connects high pressure line (2), be connected with orifice valve (9) and pneumatic control valve (8) at high pressure line (2), oil drain out (11) and discharge outlet (12) are arranged in the other end bottom of knockout drum (1); In the bottom of knockout drum (1) sewage draining exit (13) is arranged, at knockout drum (1) inwall explosive welding one deck 316L stainless steel internal layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202470824U CN201537404U (en) | 2009-11-17 | 2009-11-17 | Three-phase separator preventing corrosion due to acid and sulphur |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202470824U CN201537404U (en) | 2009-11-17 | 2009-11-17 | Three-phase separator preventing corrosion due to acid and sulphur |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201537404U true CN201537404U (en) | 2010-08-04 |
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ID=42588855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202470824U Expired - Lifetime CN201537404U (en) | 2009-11-17 | 2009-11-17 | Three-phase separator preventing corrosion due to acid and sulphur |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201537404U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103835692A (en) * | 2012-11-27 | 2014-06-04 | 中国石油化工股份有限公司 | Sealed formation testing process of high hydrogen sulfide well |
-
2009
- 2009-11-17 CN CN2009202470824U patent/CN201537404U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103835692A (en) * | 2012-11-27 | 2014-06-04 | 中国石油化工股份有限公司 | Sealed formation testing process of high hydrogen sulfide well |
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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: 20100804 |