CN117307098A - Differential pressure type wellhead dosing device skid block and use method thereof - Google Patents
Differential pressure type wellhead dosing device skid block and use method thereof Download PDFInfo
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- CN117307098A CN117307098A CN202311602119.1A CN202311602119A CN117307098A CN 117307098 A CN117307098 A CN 117307098A CN 202311602119 A CN202311602119 A CN 202311602119A CN 117307098 A CN117307098 A CN 117307098A
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- pipe
- differential pressure
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- 238000000034 method Methods 0.000 title claims abstract description 10
- 239000003814 drug Substances 0.000 claims abstract description 113
- 239000007788 liquid Substances 0.000 claims abstract description 91
- 238000010438 heat treatment Methods 0.000 claims abstract description 46
- 238000001914 filtration Methods 0.000 claims abstract description 25
- 239000003129 oil well Substances 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 33
- 238000002347 injection Methods 0.000 claims description 19
- 239000007924 injection Substances 0.000 claims description 19
- 239000010865 sewage Substances 0.000 claims description 13
- 238000005485 electric heating Methods 0.000 claims description 12
- 238000004321 preservation Methods 0.000 claims description 6
- 238000009792 diffusion process Methods 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 4
- 229940079593 drug Drugs 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 230000000087 stabilizing effect Effects 0.000 claims description 3
- 230000008676 import Effects 0.000 claims 2
- 239000003921 oil Substances 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 4
- 239000010779 crude oil Substances 0.000 abstract description 3
- 238000006073 displacement reaction Methods 0.000 abstract description 3
- 238000000605 extraction Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000000126 substance Substances 0.000 description 7
- 238000009413 insulation Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 239000003899 bactericide agent Substances 0.000 description 1
- 239000000701 coagulant Substances 0.000 description 1
- 239000013065 commercial product Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- -1 flocculant Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002455 scale inhibitor Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/30—Injector mixers
- B01F25/31—Injector mixers in conduits or tubes through which the main component flows
- B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/40—Mixing liquids with liquids; Emulsifying
- B01F23/45—Mixing liquids with liquids; Emulsifying using flow mixing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/80—Forming a predetermined ratio of the substances to be mixed
- B01F35/83—Forming a predetermined ratio of the substances to be mixed by controlling the ratio of two or more flows, e.g. using flow sensing or flow controlling devices
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B37/00—Methods or apparatus for cleaning boreholes or wells
- E21B37/06—Methods or apparatus for cleaning boreholes or wells using chemical means for preventing, limiting or eliminating the deposition of paraffins or like substances
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
- E21B41/02—Equipment or details not covered by groups E21B15/00 - E21B40/00 in situ inhibition of corrosion in boreholes or wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/18—Water-storage heaters
- F24H1/20—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes
- F24H1/201—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes using electric energy supply
- F24H1/202—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes using electric energy supply with resistances
Abstract
The invention relates to the technical field of oil field wellhead dosing devices, in particular to a differential pressure wellhead dosing device skid block and a use method thereof. The technical proposal is as follows: the medicine tank, the heating device and the filtering device are arranged in the cabinet body, the other side of the filtering device is connected to the heating device through a pipeline, the heating device is connected to the differential pressure transmitter and the jet flow medicine sucking device through a pipeline, the outlet end of the jet flow medicine sucking device is connected with the mixed well inlet pipeline, the other liquid inlet of the jet flow medicine sucking device is connected to the medicine tank through a pipeline and a check valve, and the integrating instrument is arranged on the upper side of the inner cavity of the cabinet body. The beneficial effects are that: 1. the invention adds the mixing pipe with the bell mouth structure, so that the liquid and the liquid medicine are mixed uniformly and then added into the wellhead of the oil well, the oil collecting and displacement effect is better, and the crude oil extraction rate is improved; 2. the water-medicine proportion is controlled through a mechanical structure, and the medicine adding amount can be increased and reduced along with the increase of the liquid input amount, so that scientific and reasonable medicine adding is realized.
Description
Technical Field
The invention relates to the technical field of oil field wellhead dosing devices, in particular to a differential pressure wellhead dosing device skid block and a use method thereof.
Background
In oil field development, the problems of thick oil, wax deposition, corrosion and the like are frequently encountered, particularly during the period of high water content, corrosion brings great difficulty to production, and the problems are to be treated, so that the chemical adding through a wellhead is an effective and feasible method in the current development, such as: demulsifier, scale inhibitor, bactericide, corrosion inhibitor, surfactant, flocculant, coagulant aid, deoxidizer and other liquid medicines.
At present, a chemical adding device skid block for injecting chemical liquid into an oilfield wellhead is generally used for injecting a single plunger pump, required chemical liquid flow can be calculated through wellhead water injection flow and water-chemical ratio, and then the flow of the injected chemical liquid is manually adjusted, so that the chemical adding device skid block has the following defects: firstly, water and liquid medicine are added in a branching way, the mixing is not uniform, and the oil collecting and displacement effect is poor; secondly, the accumulated flow of the liquid medicine can not be displayed, and the water-medicine ratio can not be accurately mastered so as to obtain the optimal water-medicine ratio, so that the most scientific and reasonable medicine adding is achieved; thirdly, the injection flow of the liquid medicine can be manually adjusted, remote operation and control can not be performed, and time and labor are wasted in field debugging and the like; if the plunger pump is replaced by a plunger pump capable of automatically adjusting the flow, high cost is required.
Disclosure of Invention
The invention aims at overcoming the defects in the prior art, and provides a skid block of a pressure-difference type wellhead dosing device and a use method thereof, wherein the water-drug ratio is controlled through a mechanical structure, the dosing amount is increased and reduced along with the increase of the liquid inflow, so that reasonable dosing is realized, the oil collecting and displacing effect is better, and the crude oil extraction rate is improved.
The invention relates to a skid block of a differential pressure type wellhead dosing device, which adopts the technical scheme that: including medicament jar and feeding pipeline, wherein, still include heating device, filter equipment, blowdown pipeline, mix into well pipeline, jet flow medicine suction device, totalizer, the cabinet body, differential pressure transmitter, at the internal medicament jar of installing of cabinet, heating device and filter equipment, the water supply pipeline is installed to filter equipment's upside, and the blowdown pipeline is installed to the downside, passes through the pipeline connection to heating device at filter equipment's opposite side, pass through the input of pipeline connection differential pressure transmitter on the heating device, the jet flow medicine suction device is connected to differential pressure transmitter's output, jet flow medicine suction device's exit end and mix into well pipeline connection, another inlet of jet flow medicine suction device passes through the pipeline connection uniflow valve, the other end of uniflow valve passes through into medicine pipeline connection to medicament jar, the totalizer is installed to the inner chamber upside of the cabinet body.
Preferably, the medicament tank comprises a tank body, a heat preservation layer, a liquid medicine outlet, a heat tracing belt, a liquid level temperature sensor and a liquid medicine inlet, wherein the heat preservation layer is arranged outside the tank body, the heat tracing belt is arranged in the heat preservation layer, and the heat tracing belt is wound on the tank body; the inner cavity of the tank body is provided with a liquid level temperature sensor, the bottom of the tank body is provided with a liquid medicine outlet, and the top of the tank body is provided with a liquid medicine inlet.
Preferably, the filtering device comprises a liquid outlet, a sewage outlet, a filter screen, a filter cover, a liquid inlet pipe, a filter screen bracket and a shell, wherein the liquid outlet is arranged at the lower side of the shell, the sewage outlet is arranged at the other side of the shell, the liquid inlet pipe is arranged at the upper side of the shell, the filter screen bracket is arranged in the inner cavity of the shell, the filter screen is arranged on the filter screen bracket, and the filter cover is arranged at the top of the shell.
Preferably, the lower side of the filter cover is movably connected with a filter screen handle arranged on the filter screen, the top of the filter cover is provided with a knob, and the filter cover is in threaded connection with the upper end of the shell; the filter screen support is obliquely arranged and fixed with the inner wall of the shell.
Preferably, the heating device comprises a heating tank body, a liquid outlet, a temperature transmitter, a pressure transmitter, an electric heating pipe and a liquid inlet, wherein the liquid inlet is arranged on one side of the heating tank body, the liquid outlet is arranged on the other side of the heating tank body, the electric heating pipe is arranged in an inner cavity of the heating tank body, and the temperature transmitter and the pressure transmitter are arranged at the top of the heating tank body.
Preferably, the above-mentioned jet flow medicine sucking device includes liquid inlet pipe, injection pipe, medicine sucking pipe, mixing pipe and medicine sucking device main part, liquid inlet pipe is connected to one end of medicine sucking device main part, and mixing pipe is connected to the other end, is equipped with medicine sucking pipe in one side of medicine sucking device main part, and the fixed injection pipe in the inner chamber of liquid inlet pipe, the injection head of injection pipe is located the inner chamber of medicine sucking device main part.
Preferably, one end of the injection head is connected with the tail end of the injection pipe through a conical cavity connecting pipe, and the inner diameter of the injection head is smaller than that of the injection pipe.
Preferably, the mixing tube comprises a mixing tube body, a drainage end and a diffusion tube, wherein the drainage end is arranged at one end of the mixing tube body, and the diffusion tube with a horn mouth structure is arranged at the other end of the mixing tube body.
The invention relates to a method for using a skid block of a differential pressure type wellhead dosing device, which comprises the following steps:
hoisting a skid block of a differential pressure type wellhead dosing device beside a wellhead through a crane, connecting a water supply pipeline with a water inlet pipeline connected with a filtering device, connecting a mixed well inlet pipeline connected with a jet flow drug sucking device to the wellhead, and connecting a sewage pipeline at the lower side of the filtering device into a sewage pool through a pipeline;
secondly, starting valves of a water inlet pipeline, a mixed well inlet pipeline and a medicine inlet pipeline, enabling water to enter a filtering device along the water inlet pipeline, filtering and stabilizing pressure through the filtering device, and then entering an inner cavity of a heating device, wherein an electric heating pipe is arranged in the heating device, so that the filtered water is heated, and then is sent into a jet flow medicine suction device through a liquid outlet and a differential pressure transmitter;
and thirdly, after the dosing is finished, closing valves of the water inlet pipeline, the mixed well inlet pipeline and the dosing pipeline, opening a filter cover of the filter device, taking out the filter screen, pouring out the filter material, discharging dirt at the bottom of the filter device through a sewage discharge pipeline, treating, finishing the dosing of an oil well, and hoisting a differential pressure type wellhead dosing device skid block to another wellhead through a crane for dosing operation.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention adds the mixing pipe with the bell mouth structure, so that the liquid and the liquid medicine are mixed uniformly and then added into the wellhead of the oil well, the oil collecting and displacement effect is better, and the crude oil extraction rate is improved;
2. according to the invention, the proportion of water to medicine is controlled through a mechanical structure, the medicine adding amount can be increased along with the increase of the liquid input amount, and the medicine adding amount is reduced along with the decrease, so that the scientific and reasonable medicine adding into an oil well is realized;
3. the invention also adds an integrating instrument which is provided with a wireless data transmission module and a PLC control system, can realize remote operation, is simple, quick and efficient, and saves manpower and material resources; in addition, the skid-mounted structure is convenient to move, the dosing of one oil well is completed, and the dosing operation is carried out by hoisting the oil well to the other well through the crane, so that the dosing efficiency is improved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic top view of the present invention;
FIG. 3 is a schematic structural view of a medicament canister;
FIG. 4 is a schematic view of the structure of the filtering device;
FIG. 5 is a schematic view of the structure of the heating device;
FIG. 6 is a schematic side view of a heating device;
FIG. 7 is a schematic structural view of a jet inhaler;
FIG. 8 is a schematic structural view of a mixing tube;
in the upper graph: the medicine tank 1, the medicine inlet pipeline 2, the heating device 3, the filtering device 4, the sewage disposal pipeline 5, the water inlet pipeline 6, the mixed well pipeline 7, the jet flow medicine suction device 8, the integrating instrument 9, the cabinet 10, the differential pressure transmitter 11, the check valve 12, the tank 1.1, the heat insulation layer 1.2, the medicine liquid outlet 1.3, the heat tracing belt 1.4, the liquid level temperature sensor 1.5, the medicine liquid inlet 1.6, the heating tank 3.1, the liquid outlet 3.2, the temperature transmitter 3.3, the pressure transmitter 3.4, the electric heating pipe 3.5, the liquid inlet 3.6, the liquid outlet 4.1, the sewage disposal port 4.2, the filter screen 4.3, the filter cover 4.4, the liquid inlet 4.5, the filter screen bracket 4.6, the shell 4.7, the filter screen handle 4.3.1, the knob 4.4.1, the liquid inlet pipe 8.1, the jet pipe 8.2, the medicine suction pipe 8.3, the mixing pipe 8.4, the medicine suction pipe body 8.5, the medicine suction pipe 8.2, the conical cavity 8.2, the jet pipe 8.2.2, the mixing pipe 35.2.35, and the drain pipe 35.2.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present invention only, and are not intended to limit the present invention.
Referring to fig. 1-8, the differential pressure wellhead dosing device skid block comprises a medicament tank 1 and a medicament inlet pipeline 2, and further comprises a heating device 3, a filtering device 4, a pollution discharge pipeline 5, a mixed well pipeline 7, a jet flow medicament suction device 8, an integrating instrument 9, a cabinet body 10 and a differential pressure transmitter 11, wherein a lifting lug is arranged at the top of the cabinet body 10, the medicament tank 1, the heating device 3 and the filtering device 4 are arranged in the cabinet body 10, the water inlet pipeline 6 is arranged at the upper side of the filtering device 4, the pollution discharge pipeline 5 is arranged at the lower side of the filtering device 4, the other side of the filtering device 4 is connected to the heating device 3 through a pipeline, the heating device 3 is connected to the input end of the differential pressure transmitter 11 through the pipeline, the output end of the differential pressure transmitter 11 is connected with the jet flow medicament suction device 8, the outlet end of the jet flow medicament suction device 8 is connected with the mixed well pipeline 7, the other liquid inlet of the jet flow medicament suction device 8 is connected with a single flow valve 12 through the pipeline, and the other end of the single flow valve 12 is connected with the medicament inlet pipeline 2 to the inner cavity 9 of the cabinet body 10.
Referring to fig. 3, the medicament tank 1 comprises a tank body 1.1, a heat insulation layer 1.2, a liquid medicament outlet 1.3, a heat tracing belt 1.4, a liquid level temperature sensor 1.5 and a liquid medicament inlet 1.6, wherein the heat insulation layer 1.2 is arranged outside the tank body 1.1, the heat tracing belt 1.4 is arranged in the heat insulation layer 1.2, and the heat tracing belt 1.4 is wound on the tank body 1.1 and is used for heating liquid medicament; the inner cavity of the tank body 1.1 is provided with a liquid level temperature sensor 1.5, the liquid level temperature sensor 1.5 can realize high and low liquid level alarm, and can measure the temperature of the liquid medicine to keep proper temperature, thereby preventing icing or overtemperature failure; the bottom of the tank body 1.1 is provided with a liquid medicine outlet 1.3, and the top of the tank body 1.1 is provided with a liquid medicine inlet 1.6.
Referring to fig. 4, the filtering device 4 of the present invention includes a liquid outlet 4.1, a drain outlet 4.2, a filter screen 4.3, a filter cover 4.4, a liquid inlet pipe 4.5, a filter screen support 4.6 and a housing 4.7, wherein the lower side of the housing 4.7 is provided with the liquid outlet 4.1, the other side is provided with the drain outlet 4.2, the upper side is provided with the liquid inlet pipe 4.5, the inner cavity of the housing 4.7 is provided with the filter screen support 4.6, the filter screen 4.3 is arranged on the filter screen support 4.6, the top of the housing 4.7 is provided with the filter cover 4.4, and the filter cover 4.4 can be designed to be in threaded connection with the upper end of the housing 4.7.
The lower side of the filter cover 4.4 is movably connected with a filter screen handle 4.3.1 arranged on the filter screen 4.3, so that when the filter cover 4.4 is unscrewed, the filter device 4 can be quickly opened, the filter screen 4.3 is taken out to clean impurities, a knob 4.4.1 is arranged at the top of the filter cover 4.4, and the filter cover 4.4 is in threaded connection with the upper end of the shell 4.7; the filter screen support 4.6 is obliquely arranged and fixed with the inner wall of the shell 4.7.
Referring to fig. 5-6, the heating device 3 of the invention comprises a heating tank body 3.1, a liquid outlet 3.2, a temperature transmitter 3.3, a pressure transmitter 3.4, an electric heating pipe 3.5 and a liquid inlet 3.6, wherein one side of the heating tank body 3.1 is provided with the liquid inlet 3.6, the other side is provided with the liquid outlet 3.2, the electric heating pipe 3.5 is arranged in the inner cavity of the heating tank body 3.1, and the temperature transmitter 3.3 and the pressure transmitter 3.4 are arranged at the top of the heating tank body 3.1;
in addition, the heating device 3 is designed to be of a low-in high-out structure, so that the electric heating tube 3.5 is prevented from being damaged by dry burning; the temperature transmitter 3.3 is used for measuring the temperature of the liquid in the tank and feeding back to the integrating instrument 9, and the integrating instrument 9 controls the start and stop of the electric heating pipe 3.5 to keep the temperature of the liquid in the heating tank body 3.1 in a required temperature range.
Referring to fig. 7, the jet flow medicine sucking device 8 of the present invention comprises a liquid inlet pipe 8.1, a jet pipe 8.2, a medicine sucking pipe 8.3, a mixing pipe 8.4 and a medicine sucking device main body 8.5, wherein one end of the medicine sucking device main body 8.5 is connected with the liquid inlet pipe 8.1, the other end is connected with the mixing pipe 8.4, the medicine sucking pipe 8.3 is arranged at one side of the medicine sucking device main body 8.5, the jet pipe 8.2 is fixed in the inner cavity of the liquid inlet pipe 8.1, and a jet head 8.2.1 of the jet pipe 8.2 is positioned in the inner cavity of the medicine sucking device main body 8.5.
One end of the injection head 8.2.1 is connected with the tail end of the injection pipe 8.2 through a conical cavity connecting pipe 8.2.2, and the inner diameter of the injection head 8.2.1 is smaller than that of the injection pipe 8.2.
Referring to fig. 8, the mixing tube 8.4 of the present invention includes a mixing tube body 8.4.1, a drainage end 8.4.2, and a diffuser 8.4.3, wherein one end of the mixing tube body 8.4.1 is provided with the drainage end 8.4.2, and the other end is provided with a diffuser 8.4.3 with a bell mouth structure.
In addition, the integrating instrument 9 is a commercial product and is composed of a PLC control system, a signal collecting and transmitting module, a wireless data transmission module and the like, wherein the PLC control system can collect and display signals such as temperature, pressure difference, liquid level and the like, and a flow calculation formula such as a Bernoulli equation and the like is embedded in the PLC control system, so that instantaneous flow and accumulated flow can be calculated; the wireless data transmission module can wirelessly transmit data to each platform and can receive data adjustment of each platform.
The invention relates to a method for using a skid block of a differential pressure type wellhead dosing device, which comprises the following steps:
the method comprises the steps of firstly, hoisting a differential pressure type wellhead dosing device skid block beside a wellhead through a crane, connecting an incoming water pipeline 6 connected with a filter device 4 with a water supply pipeline, connecting a mixed well inlet pipeline 7 connected with a jet flow dosing device 8 to the wellhead, and connecting a sewage pipeline 5 at the lower side of the filter device 4 into a sewage pool through a pipeline;
secondly, starting valves of an inflow pipeline 6, a mixed well pipe 7 and a medicine inlet pipeline 2, enabling water to enter a filtering device 4 along the inflow pipeline 6, filtering and stabilizing pressure through the filtering device 4, then entering an inner cavity of a heating device 3, heating filtered water due to the fact that an electric heating pipe 3.5 is arranged in the heating device 3, sending the filtered water into a jet medicine suction device 8 through a liquid outlet 3.2 and a differential pressure transmitter 11, wherein a orifice plate type throttling device is additionally arranged in the differential pressure transmitter 11, local contraction of liquid is caused near the throttling device, the flow speed of the water is increased, pressure difference is generated, an integrating instrument 9 calculates instantaneous overcurrent flow and integrating flow, then the instantaneous overcurrent flow is sprayed out at a high speed through a spraying pipe 8.2, a vacuum area is formed in the inner cavity of a medicine suction device main body 8.5, liquid medicine from a medicine tank 1 is sucked into the mixed pipe 8.4 through the medicine inlet pipeline 2, a single flow valve 12 and the medicine suction pipe 8.3, and finally, water medicine mixed liquid is added into a wellhead through the mixed well pipe 7;
and thirdly, after the dosing is finished, closing valves of the water inlet pipeline 6, the mixed well inlet pipeline 7 and the dosing pipeline 2, opening a filter cover 4.4 of the filter device 4, taking out the filter screen 4.3, pouring out the filtered matters, discharging dirt at the bottom of the filter device 4 through the sewage discharge pipeline 5 for treatment, finishing the dosing of one oil well, and hoisting a differential pressure type wellhead dosing device skid block to another wellhead through a crane for dosing operation.
The above description is only a few preferred embodiments of the present invention, and any person skilled in the art may make modifications to the above described embodiments or make modifications to the same. Accordingly, the corresponding simple modifications or equivalent changes according to the technical scheme of the present invention fall within the scope of the claimed invention.
Claims (9)
1. The utility model provides a pressure differential well head dosing device sledge piece, includes medicament jar (1) and advances medicine pipeline (2), characterized by: still include heating device (3), filter equipment (4), blow off pipeline (5), mix well pipe way (7), jet flow medicine suction device (8), totalizer (9), cabinet body (10), differential pressure transmitter (11), install medicament jar (1), heating device (3) and filter equipment (4) in cabinet body (10), water pipe way (6) are installed to the upside of filter equipment (4), and blow off pipeline (5) are installed to the downside, pass through pipeline connection to heating device (3) at the opposite side of filter equipment (4), be connected to the input of differential pressure transmitter (11) through the pipeline on heating device (3), jet flow medicine suction device (8) are connected to the output of differential pressure transmitter (11), the exit end and the mix well pipe way (7) of jet flow medicine suction device (8) are connected, another inlet of jet flow medicine suction device (8) is through pipeline connection uniflow valve (12), and the other end of uniflow valve (12) is connected to medicament jar (1) through advancing medicine pipeline (2), the inner chamber upside of cabinet body (10) installs totalizer (9).
2. The differential pressure wellhead dosing device skid of claim 1, wherein: the medicament tank (1) comprises a tank body (1.1), a heat preservation layer (1.2), a liquid medicine outlet (1.3), a heat tracing belt (1.4), a liquid level temperature sensor (1.5) and a liquid medicine inlet (1.6), wherein the heat preservation layer (1.2) is arranged outside the tank body (1.1), the heat tracing belt (1.4) is arranged in the heat preservation layer (1.2), and the heat tracing belt (1.4) is wound on the tank body (1.1); the liquid level temperature sensor (1.5) is arranged in the inner cavity of the tank body (1.1), the liquid medicine outlet (1.3) is arranged at the bottom of the tank body (1.1), and the liquid medicine inlet (1.6) is arranged at the top of the tank body (1.1).
3. The differential pressure wellhead dosing device skid of claim 2, wherein: the filtering device (4) comprises a liquid outlet (4.1), a drain outlet (4.2), a filter screen (4.3), a filter cover (4.4), a liquid inlet pipe (4.5), a filter screen support (4.6) and a shell (4.7), wherein the liquid outlet (4.1) is arranged at the lower side of the shell (4.7), the drain outlet (4.2) is arranged at the other side of the shell, the liquid inlet pipe (4.5) is arranged at the upper side of the shell, the filter screen support (4.6) is arranged in an inner cavity of the shell (4.7), the filter screen (4.3) is arranged on the filter screen support (4.6), and the filter cover (4.4) is arranged at the top of the shell (4.7).
4. A differential pressure wellhead dosing device skid as defined in claim 3, wherein: the lower side of the filter cover (4.4) is movably connected with a filter screen handle (4.3.1) arranged on the filter screen (4.3), a knob (4.4.1) is arranged at the top of the filter cover (4.4), and the filter cover (4.4) is in threaded connection with the upper end of the shell (4.7); the filter screen bracket (4.6) is obliquely arranged and fixed with the inner wall of the shell (4.7).
5. The differential pressure wellhead dosing device skid of claim 4, wherein: heating device (3) including heating jar body (3.1), liquid export (3.2), temperature transmitter (3.3), pressure transmitter (3.4), electric heating pipe (3.5), liquid import (3.6), one side of heating jar body (3.1) is equipped with liquid import (3.6), the opposite side is equipped with liquid export (3.2), is equipped with electric heating pipe (3.5) at the inner chamber of heating jar body (3.1), is equipped with temperature transmitter (3.3) and pressure transmitter (3.4) at the top of heating jar body (3.1).
6. The differential pressure wellhead dosing device skid of claim 5, wherein: jet flow medicine suction device (8) including coming liquid entry pipe (8.1), jet pipe (8.2), medicine suction pipe (8.3), hybrid tube (8.4) and medicine suction apparatus main part (8.5), liquid entry pipe (8.1) is connected to one end of medicine suction apparatus main part (8.5), hybrid tube (8.4) are connected to the other end, are equipped with medicine suction pipe (8.3) in one side of medicine suction apparatus main part (8.5), fixed jet pipe (8.2) in the inner chamber that comes liquid entry pipe (8.1), jet head (8.2.1) of jet pipe (8.2) are located the inner chamber of medicine suction apparatus main part (8.5).
7. The differential pressure wellhead dosing device skid of claim 6, wherein: one end of the injection head (8.2.1) is connected with the tail end of the injection pipe (8.2) through a conical cavity connecting pipe (8.2.2), and the inner diameter of the injection head (8.2.1) is smaller than the inner diameter of the injection pipe (8.2).
8. The differential pressure wellhead dosing device skid of claim 7, wherein: the mixing tube (8.4) comprises a mixing tube body (8.4.1), a drainage end (8.4.2) and a diffusion tube (8.4.3), wherein one end of the mixing tube body (8.4.1) is provided with the drainage end (8.4.2), and the other end of the mixing tube body is provided with the diffusion tube (8.4.3) with a horn mouth structure.
9. A method of using the differential pressure wellhead dosing device skid of claim 8, comprising the steps of:
hoisting a differential pressure type wellhead dosing device skid block beside a wellhead through a crane, connecting an incoming water pipeline (6) connected with a filtering device (4) with a water supply pipeline, connecting a mixed well inlet pipeline (7) connected with a jet flow drug sucking device (8) to the wellhead, and connecting a sewage pipeline (5) at the lower side of the filtering device (4) into a sewage pool through a pipeline;
secondly, starting valves of an incoming water pipeline (6), a mixed well pipeline (7) and a medicine inlet pipeline (2), enabling water to enter a filtering device (4) along the incoming water pipeline (6), filtering and stabilizing pressure through the filtering device (4), then entering an inner cavity of a heating device (3), heating filtered water due to the fact that an electric heating pipe (3.5) is arranged in the heating device (3), sending the filtered water into a jet medicine suction device (8) through a liquid outlet (3.2) and a differential pressure transmitter (11), wherein a orifice plate type throttling device is additionally arranged in the differential pressure transmitter (11), liquid is locally contracted near the throttling device, the flow speed of the water is increased, pressure difference is generated, an instantaneous overcurrent flow and an integrating flow are calculated by an integrating instrument (9), then, the water is sprayed out at a high speed through an injection pipe (8.2), a vacuum area is formed in the inner cavity of a medicine suction device main body (8.5), liquid medicine from a medicine tank (1) is sucked into the mixed well pipeline (8.4) through the medicine inlet pipeline (2), a uniflow flow valve (12) and the medicine suction pipe (8.3), and finally, and the mixed liquid is added into a well mouth (7);
and thirdly, after the dosing is finished, closing valves of the water inlet pipeline (6), the mixed well inlet pipeline (7) and the dosing pipeline (2), opening a filter cover (4.4) of the filter device (4), taking out the filter screen (4.3), pouring out the filtered matters, discharging dirt at the bottom of the filter device (4) through the sewage discharging pipeline (5), treating, finishing the dosing of one oil well, and hoisting a differential pressure type wellhead dosing device skid block to another wellhead through a crane for dosing operation.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311602119.1A CN117307098A (en) | 2023-11-28 | 2023-11-28 | Differential pressure type wellhead dosing device skid block and use method thereof |
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| CN202311602119.1A CN117307098A (en) | 2023-11-28 | 2023-11-28 | Differential pressure type wellhead dosing device skid block and use method thereof |
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