CN200985784Y - Oilfield sewage oil slick recovery device - Google Patents

Abstract

The utility model provides an oil field sewage floating oil recovery unit, comprises float aspirator, body, stainless steel hose, hose nipple, suction pump, characterized by: the floating suction device is arranged on the floating body and is connected with the stainless steel hose and the hose joint and the suction pump. The floating body floats on the liquid level, the sinking depth of the fixed floating suction device is adjusted, the stainless steel hose and the stainless steel hose joint are connected with the oil float device and the suction pump, the suction pump is started, the floating oil stored on the liquid level in the oil removing tank can be sucked out of the oil removing tank, and the oil content of the reinjection water is reduced. The effect is as follows: the utility model discloses can accomplish the oil slick and retrieve, not restricted by the fluctuation of the interior liquid level height of jar, force suction, arrange outward, retrieve the oil slick in real time, initiatively. Overcomes the defect of manual oil discharge.

Description

Oilfield sewage oil slick recovery device

technical field

The utility model relates to the technical field of oil slick recovery in oil field sewage tanks, in particular to an oil slick oil recovery device in oil field sewage tanks, in particular to an oil slick recovery device in oil field sewage settling tanks.

Background technique

At present, in the surface process of oil extraction in oil fields, a large amount of oily sewage is separated from the produced liquid every day in each joint station during production, and is discharged to the oil removal tank in the water area. The density of oil is lighter than that of water, and a certain thickness of slick oil is accumulated on the upper part of the sewage in the tank. When the liquid level rises to the position of the fixed oil collection tank designed in the tank, the staff at the post start the oil pump to recover the floating oil on the liquid surface and improve the water quality of the injection water. Due to the uneven liquid intake of the degreasing tank, it is necessary to go up to the top of the degreasing tank frequently to observe whether the dirty oil should be collected. The oil collection time and the height of the liquid level rise are all based on feeling and experience to recover the oil slick on the liquid surface. It is difficult to ensure the oil content of the external water, resulting in high oil content in the reinjection water. The water quality of reinjection water has high oil content, which will cause great damage to water injection equipment and formation. The long-term high oil content of reinjection water can even block the formation channels of water injection wells. At this time, the water injection pressure must be increased or the workover operation must be carried out to inject water into the formation again.

Utility model content:

The purpose of this utility model is to provide an oil slick recovery device for oil field sewage, which can complete the oil slick stored in the liquid area in the oil removal tank, and the device is not limited by the fluctuation of the liquid level in the tank, and the floating suction device can adjust with the height of the liquid level. Floating, forced suction oil slick, with simple structure, less investment in equipment, good oil collection effect, saving manpower, reducing labor intensity, and reducing the oil content of externally transported water and sewage.

The technical scheme adopted by the utility model is: the oilfield sewage oil slick recovery device is composed of a floating suction device, a floating body, a stainless steel hose, a stainless steel hose joint, and a suction pump. The floating suction device is installed on the floating body to make the floating suction device float on the liquid surface , The buoyant suction device is connected to the stainless steel hose and the stainless steel hose joint to connect with the suction pump.

The floating body can use 3 cylindrical welded sealing cylinders to make the buoyant suction device float on the liquid surface. Three steel pipes are used to fix the three floating bodies in a triangular manner.

The depth requirement of the floating suction device sinking into the liquid surface is relatively strict, which is also an important condition for the normal operation of the floating suction device. In order to adjust the sinking depth of the fixed buoyant suction device, a lifting connector and a lifting slideway are fixed at the joint of the steel pipe. The buoyant suction device is connected on the lifting connector and the lifting slideway. When adjusting the water depth of the float suction device, rotate the lift connector handle, and the float suction device moves up and down along the lift slideway. Choose a height that is more suitable for the work of the floating suction device, and fix and lock the lifting connector, so that the floating suction device can play a good role in floating suction.

The floating suction device is available in the market, and the general power of the floating suction device is 0.4~1.5kW, the lift is 28~44m, and the displacement is 0.6~2.4m ³ /h

Stainless steel hoses are available in the market. The stainless steel hoses used have a nominal diameter of 19-38mm and a length of 10-15m. Stainless steel hose joints are available in the market, with a nominal diameter of 19-38mm.

Suction pumps are available in the market, with a power of 0.4-2.0kW, a lift of 0-50m, a suction range of 7-12m, and a displacement of 0-2.4m ³ /h.

The three floating bodies float on the liquid surface, adjust the sinking depth of the fixed floating suction device, and connect the oil floating device and the suction pump with stainless steel hoses and stainless steel hose connectors. Start the suction pump to suck the slick oil stored in the liquid area of the oil removal tank to the outside of the oil removal tank, reducing the oil content of the reinjection water.

Beneficial effects of the utility model: From the process of recovering floating oil with the utility model, it is not difficult to see that the utility model is not limited by the fluctuation of the liquid level in the tank, and the utility model can be forced to suck and discharge, and recover the floating oil in real time and actively. Oil. It overcomes the shortage of regularly raising the liquid level to the position of the fixed oil collection tank designed in the tank, and then starting the pump to recover. It avoids the disadvantages that it is difficult to find out the thickness of the slick oil, and the oil collection time and the height of the liquid level rise are all controlled by feeling and experience.

The utility model can be applied to the fields of oily sewage treatment and automatic collection of floating oil in various types of sewage settling tanks in the process of marine and continental petroleum development and oil recovery.

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail.

Description of drawings

Fig. 1 is a schematic diagram of the longitudinal section structure of the oilfield sewage oil slick recovery device of the utility model.

FIG. 2 is a top view of FIG. 1 .

Among the figure, 1, floating body, 2, stainless steel pipe, 3, lifting slideway, 4, lifting regulator, 5, floating suction device, 6, stainless steel hose, 7, hose connector, 8, suction pump.

Detailed ways

Embodiment: referring to accompanying drawing 1. Oilfield sewage oil slick recovery device, the power of the floating suction device (5) is 1.0kW, the head is 30m, and the displacement is 1.4m3/h. The stainless steel hose (6) has a nominal diameter of 25mm and a length of 10m. The hose connector (7) has a nominal diameter of 25mm. Suction pump (8) power is 1.0kW, head 30m, suction 9m, displacement 1.0m3/h. Refer to attached drawing 2. The floating body (1) adopts a sealed cylinder with a diameter of 500mm and a cylindrical stainless steel plate with a height of 800mm. Three steel pipes (2) are used to fix the three sealing cylinders in a triangular manner. The buoyant suction device (5) is installed in the middle of the floating body (1). Refer to accompanying drawing 1. A lifting connector (4) and a lifting slideway (3) are fixed at the junction of the steel pipes (2), and the floating suction device (5) is connected to the lifting connector (4) and the lifting slideway (3). The buoyant suction device (5) is connected with the stainless steel hose (6) and the hose joint (7) and is connected with the suction pump (8).

Claims (6)

1, a kind of oilfield sewage oil spill skimmer, form by floating haustorium (5), buoyancy aid (1), stainless steel flexible hose (6), hose coupling (7), suction pump (8), it is characterized in that: floating haustorium (5) is installed on the buoyancy aid (1), and floating haustorium (5) connects stainless steel flexible hose (6) and is connected with hose coupling (7) and with suction pump (8).

2, oilfield sewage oil spill skimmer according to claim 1 is characterized in that: buoyancy aid (1) adopts 3 cylindrical welded seal tubes, adopts 3 steel pipes (2) mode triangular in shape to fix between 3 buoyancy aids (1).

3, oilfield sewage oil spill skimmer according to claim 1 is characterized in that: be fixed with lifting connector (4) and hoistway (3) in steel pipe (2) junction, floating haustorium (5) is connected on lifting connector (4) and the hoistway (3).

4, according to claim 1 or 2 or 3 described oilfield sewage oil spill skimmers, it is characterized in that: the power of described floating haustorium (5) is 0.4～1.5kW, lift 28～44m, discharge capacity 0.6～2.4m ³/ h.

5, according to claim 1 or 2 or 3 described oilfield sewage oil spill skimmers, it is characterized in that: stainless steel flexible hose (6) nominal diameter is between 19～38mm, and length is 10～15m; Stainless steel soft union (7) nominal diameter 19～38mm.

6, according to claim 1 or 2 or 3 described oilfield sewage oil spill skimmers, it is characterized in that: suction pump (8) power is 0.4～2.0kW, and lift 0～50m inhales journey 7～12m, discharge capacity 0.6～2.4m ³/ h.

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