(57) Abstract:Usage: in the separation installations in particular, can be used for primary separation of products of oil wells for oil, gas, and water in the system of collection and preparation. Ensures the efficiency of the device at different stages of development of an oil field. The inventive device includes an input gas separator with depulsators, heater and gasometrical. He arranged, with additional depulsators. The latter is connected with depulsators input gas separator horizontal lintel. It is located at the same height with horizontal sections of both demolatorul. The device also has a sump for water separator, buffer tanks for oil and water pumps for pumping oil and water. All components of the functional elements arranged in the form of modules. They are common technological unit. They are connected by piping with the possibility of their inclusion or exclusion from the process unit depending on the stage of exploitation. 1 Il. The invention relates to the separation installations and can be used to p> Known fractionation device (1) including inlet oil and gas separator with depulsators, gasometrical, sump water separator, buffer tanks for oil and water pumps for pumping oil and water.A disadvantage of the known centrifuges is time consuming reconstructions its technological units, the need for which is due to the stages of development of an oil field, defined by the percentage of water content in crude production. Reconstruction requires the addition, by combination with existing, necessary technological blocks of different functional purpose or to replace them, and this entails a reconstruction of the whole system: automation, electrical, industrial sites, etc. that, in the end, leads to an increase in the cost of production.The objective of the invention is the reduction of production costs at the expense of the health of a separation unit n and coupled with depulsators input gas separator horizontal pipe jumper located at the same height with horizontal sections of both demolatorul, all integral functional elements Sep the service piping with shutoff elements, with the possibility of their inclusion or exclusion from the process unit depending on the stage of exploitation.Comparative analysis with the prototype shows that the proposed separation system characterized by the presence of additional depositor and arrangement of its constituent functional elements in the form of modules connected by piping with shutoff elements. These distinctive features not found in the analysis of the prior art and this allows to conclude that the claimed separation system is new and involves an inventive step.The drawing shows a diagram of a separation unit.Separation system consists of a stilling pipe 1, the input gas separator 2 with depulsators 3 for separating gas released from the oil collection system, a heater 4, a three-phase separator-the separator 5 with additional depulsators 6 for selection of gas released by heating the oil, a buffer tank 7 for collecting the partially dehydrated oil pump 8 for pumping oil treatment unit, pressure tanks 9 to clean detachable water reservoir, the buffer tank 10, a pump II for QCD is ora 2 horizontal pipe crosspiece 12, located at the same height with horizontal sections of both separators. This arrangement of the pipe jumpers 12 eliminates the occurrence of secondary pulsations and thereby save stratified for oil and gas before entering the three-phase separator-the separator 5.Separation system operates as follows.In the first stage, when the water content is less than 30%, the input oil separator 2 and the oil heater 4 is reserved and excluded from the circuit by closing the inlet valves. Production wells, passing them from depositor 3 horizontal pipe crosspiece 12 is fed through additional depositor 6 in three-phase separator-the separator 5, which performs in this case the role of the inlet separator.With increasing oil water cut up to 30% and above for the destruction of stable oil-water emulsions require heating, which determines the need for the selection and separation of gas from the stream in front of the heater 4 and its incorporation into the work. For this purpose the valve on the pipe crosspiece 12 is closed, and input the oil separator 2 and the heater 4 open. When this separation system works full version.In delineating its resistance decreases, that leads to the exclusion of its heating, and input the oil separator 2 and the heater 4 can again be excluded from the scheme.Thus, the proposed construction of a separation unit provides mobility technology and the possibility of its work in all stages of operation of an oil field without substantial reconstruction.Used sources of information:
1.Guidance on the design and operation of separation units oil fields, the selection and arrangement separting equipment. RD-0004-90. Vniisptneft, Ufa, 1990, P. 31-32. Separation system including inlet oil and gas separator with depulsators, heater, gasometrical, sump water separator, buffer tanks for oil and water pumps for pumping oil and water, characterized in that it is equipped with extra depulsators linked with gazavtosistema and related depulsators input gas separator horizontal pipe jumper located at the same height with horizontal sections of both demolatorul, all integral functional elements of a separation unit of sompon the inclusion and exclusion from the process unit depending on the stage of exploitation.
FIELD: oil extractive industry.
SUBSTANCE: device includes exposure chamber, U-shaped branch pipe on it for passing of oil with picking of oil from upwards, made in form of five pipes inserted into one another with common ceiling and bottom and apertures in upper and lower portions of pipe, forming serially placed U-shaped and upturned U-shaped branch-pipe, and channel for passing of water with picking of water from downwards, having common output from device.
EFFECT: higher efficiency.
1 ex, 1 dwg
FIELD: oil and gas production.
SUBSTANCE: invention relates to gas-liquid systems coming from oil production wells. Mixture is separated into liquid and gas in separator. Liquid is periodically accumulated in separator container and then displaced with gas. During this operation, differential pressure for liquid reaching its lower and upper recorded levels and time required for filling recorded volumes are measured as well as absolute pressure and temperature of gas in container. Liquid flow value expressed in weight is calculated using special mathematical dependence. At oil field, liquid and gas enter separator from preliminary gas intake installation or from the first separation step.
EFFECT: increased accuracy of measurement due to avoided gas density registration and excluded necessity of using strictly cylindrically-shaped measuring container.
FIELD: oil extractive industry.
SUBSTANCE: mixture is separated on liquid and gas in separator. Liquid is periodically collected and forced away by gas while measuring absolute pressure and gas temperature in separator tank near upper and lower fixed liquid levels, and times of forcing away of fixed liquid volume. Additionally measured are absolute pressure and temperature in moment when liquid reaches intermediate fixed level. Then liquid is forced from intermediate fixed level to lower fixed level separator is switched off from well, and mass loss of gas is calculated from provided relation. Device for realization of method consists of separator with feeding pipe, in which a three-drive valve is mounted, and draining pipe, which through said valve is connected to liquid outlet channel and to gas outlet channel. Separator is provided with sensors of temperature and pressure and sensors of upper, intermediate and lower levels, mounted in such a manner, that they separate fixed volumes between each other in separator tank, in case of equality of which calculations are simplified.
EFFECT: higher precision.
2 cl, 1 dwg
FIELD: oil industry.
SUBSTANCE: method includes mixing water-oil emulsion with drain water in line of inlet of first electric hydrator by dispersing drain water in volume 8-15% from volume of prepared oil at temperature 40-50°C. As washing water drain water is used from same oil deposit with mineralization less than saturation limit.
EFFECT: higher efficiency.
FIELD: oil industry.
SUBSTANCE: method includes feeding oil emulsion to reservoir with flow 0,5-1 m3/hour through layer of drain water of same oil deposit with mineralization less than saturation limit at temperature 20-30°C and bed thickness of drain water 6-8 m. in reservoir oil is separated and directed to inlet of oil preparation plant.
EFFECT: higher efficiency, broader functional capabilities.
FIELD: oil industry.
SUBSTANCE: method includes dispersing water in oil emulsion at input of accumulator. As water, drain-water of the same oil deposit is used with content of oil products no less than 60 mg/l and hard suspended particles no more than 50 mg/l in volume 8-15% of volume of prepared oil at a temperature 5-25°.
EFFECT: higher efficiency.
FIELD: oil industry, particularly to prevent salt deposits in collector and measuring installations during oil production and transportation.
SUBSTANCE: method involves mixing product flows and transporting thereof, wherein compatible liquids are chosen for further mixing so that during mixing of above liquids oversaturated salt solution does not appear to prevent salt precipitation. Liquid for mixing is taken in amount enough to reduce salt concentration to value, which does not exceed saturated concentration and provides mineralization obtaining after liquid mixing. Mixing of liquid flows is performed out of process equipment and in tubes provided with release coating applied on inner tube surfaces.
EFFECT: increased simplicity due to elimination of chemical reagent usage and due to reduced number of stages.
FIELD: oil production industry, particularly for oil product separation.
SUBSTANCE: method involves mixing gaseous hydrocarbon with aqueous acid solution with pH value of not more than 4 so that hydrate-generation gas is converted into hydrate phase under hydrate phase forming control.
EFFECT: increased efficiency due to increased separation degree, increased simplicity, possibility to utilize separation products and enhanced safety.
15 cl, 2 dwg
FIELD: oil production, oil refining, oil chemistry and other fields connected with emulsion breakdown, particularly adapted for formation fluid separation into such components as oil, gas and water.
SUBSTANCE: method involves subjecting formation fluid flow to magnetic treatment to provide emulsified water droplet coalescence; breaking inhibiting shells at oil-water interface to provide additional water droplet collision. To increase rate of water-gas-oil emulsion stratification, to improve quality of emulsion separation into oil, gas and water and to reduce emulsifier consumption above magnetic treatment is carried out in field directed transversely to fluid flow and having strength H = 5-10kA/m and magnetic field strength gradient dH/dr=2-5·106 A/m2. Unidirectional unipolar point constant magnets are used for above magnetic field creation. Inhibiting shells are broken with the use of vibration having 10-100 Hz frequency and 0.5-10 mm amplitude.
EFFECT: increased emulsion breakdown rate along with decreased hydrocarbon concentration in water and water content in hydrocarbon, as well as reduced demulsifier consumption.
1 tbl, 2 dwg
FIELD: water production from boreholes.
SUBSTANCE: method involves drilling production and injection borehole systems; penetrating borehole by perforation thereof; applying vibroacoustic pressure oscillations to formation, wherein the pressure oscillations are excited by acoustic borehole tools lowered in boreholes; producing water from boreholes. Injection borehole pipes are not perforated and are filled with working liquid. Acoustic oscillations are initially applied to production boreholes so that pressure in production boreholes preliminarily filled with fracturing liquid should be at least 2 times greater than formation breakdown pressure. Acoustic borehole device is located within perforation area. After crack opening water is lifted from production boreholes. During water lifting acoustic pressure oscillations are applied to formation through injection boreholes.
EFFECT: provision of water production in dry territories, increased economy and efficiency.