RU57358U1 - Plastic pressure support system - Google Patents

Plastic pressure support system Download PDF

Info

Publication number
RU57358U1
RU57358U1 RU2006118287/22U RU2006118287U RU57358U1 RU 57358 U1 RU57358 U1 RU 57358U1 RU 2006118287/22 U RU2006118287/22 U RU 2006118287/22U RU 2006118287 U RU2006118287 U RU 2006118287U RU 57358 U1 RU57358 U1 RU 57358U1
Authority
RU
Russia
Prior art keywords
pressure
low
water
injection wells
valve
Prior art date
Application number
RU2006118287/22U
Other languages
Russian (ru)
Inventor
Рустем Бариевич Фаттахов
Андрей Александрович Арсентьев
Альфия Анваровна Фасхутдинова
Original Assignee
Открытое акционерное общество "Татнефть" им. В.Д. Шашина
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Открытое акционерное общество "Татнефть" им. В.Д. Шашина filed Critical Открытое акционерное общество "Татнефть" им. В.Д. Шашина
Priority to RU2006118287/22U priority Critical patent/RU57358U1/en
Application granted granted Critical
Publication of RU57358U1 publication Critical patent/RU57358U1/en

Links

Abstract

The proposal relates to the oil industry, and in particular to systems for waterflooding and maintaining reservoir pressure during the development of oil fields, which allow cleaning of water pipes, tubing and bottom-hole zone of the oil reservoir in injection wells during operation of low-permeable formations or that have worsened their performance due to contamination of the borehole zones. The essence of the utility model is that the input line of the high-pressure pump is equipped with a low-pressure pump, and the high-pressure pump is covered by a bypass line with a valve, while the conduit in the estuary zone of the low-pressure injection well is equipped with an additional line with a valve. The technical and economic efficiency of the proposed system for maintaining reservoir pressure is achieved by maintaining the injectivity of injection wells at the design level, disposing of contaminants removed from the bottom-hole zone of the formation by removing them from the water conduit system, and additionally cleaning the internal cavity of the water conduits by washing. The use of this proposal allows for small additional capital costs using the existing reservoir pressure maintenance system to restore the injectivity of low-permeability formations without underground and overhaul of wells due to liquid spills and disposal of contaminants carried out from the bottom-hole formation zone partially into high-pressure injection wells, as well as with subsequent removal contaminants from the water supply system by rinsing them with clean water from the head plant structures, to significantly reduce the pollution of distribution pipelines by spill contamination due to their additional washing, to increase the time between overhauls of the bottom-hole zone of injection wells and, as a result, to save material costs for maintaining reservoir pressure. 3 ill. on 1 sheet

Description

The proposal relates to the oil industry, and in particular to systems for waterflooding and maintaining reservoir pressure during the development of oil fields, which allow cleaning of water pipes, tubing and bottom-hole zone of the oil reservoir in injection wells during operation of low-permeable formations or that have worsened their performance due to contamination of the borehole zones.

A well-known system of maintaining reservoir pressure, containing water conduits, pumps, distributing water conduits, injection wells (see the book: VA Eronin and others. The operation of the reservoir water flooding system. - M .: Nedra, 1964, p.142-146).

The system allows you to transport water to each of the injection rows and further to the reservoir to replenish its energy spent in oil production.

The disadvantage of the system is that the system does not provide protection of the bottomhole formation zone from contamination by oil and solids by suspended particles contained in the injected water, the accumulation of which in the bottomhole formation zone leads to a decrease in injectivity.

Closest to the proposed one is a "System for maintaining reservoir pressure" in formations of various permeability (RF Patent No. 39643 E 21 B 43/20. Published. 08/10/2004 BI No. 22), including hydrodynamic systems, each of which contains pumps, injection high and low injection wells combined by water conduits, while the conduit in the estuary zone of the low-pressure injection well is connected by additional pipelines through the fluid flow regulator to the conduit of the estuary zone of the high-pressure injection well us uniform hydrodynamic system and / or adjacent hydrodynamic systems.

The disadvantage of this system is that it is necessary to build a network of additional water pipelines connecting the estuarine zones of injection wells of various injections, while the injectivity rate of injection wells during their operation is unstable and, as a rule, is constantly reduced due to colmatization of the pore space of the open-hole well zone reservoir contamination in the injected water, resulting in

initially, a highly-responsive injection well as a result of mudding of the bottom-hole zone of the formation can be equal in injectivity to a neighboring low-pressure injection well, between which an additional water conduit was constructed, which at the same time loses its original functionality and can no longer clean the bottom-hole zone of the formation of a low-pressure injection well.

The technical task of the proposed utility model is to reduce the loss of injectivity of low-permeability formations, increase the time between cleanings of the bottom-hole zone of injection wells and, as a result, save material costs for maintaining reservoir pressure.

The stated technical problem is solved by the proposed reservoir pressure maintenance system, including pumps, injection wells of high and low injectivity, combined by water conduits in a single hydrodynamic system.

What is new is that the inlet line of the high-pressure pump is equipped with a low-pressure pump, and the high-pressure pump is covered by a bypass line with a valve, while the conduit in the estuary zone of the low-pressure injection well is equipped with an additional line with a valve.

Figure 1 shows the proposed system for maintaining reservoir pressure.

Figure 2 shows an enlarged diagram of the strapping of pumps at the cluster pump station.

Figure 3 shows an enlarged diagram of the proposed system for maintaining reservoir pressure in the estuarine zone of a low-pressure injection well.

In this case, in Figs. 1 and 3: I - water injection into the reservoir, II - water spout from a low-pressure injection well into a water conduit and then into a highly-sensitive injection well, III - removal of spill contamination.

The reservoir pressure maintenance system (FIG. 1) comprises a head treatment plant 1, a pump as a part of a cluster pump station 2, water conduits 3, highly responsive injection wells 4 and low-sensitivity injection wells 5. A high pressure pump 6 located at the cluster pump station 2 (FIG. 2) ) is connected by an input line 7 with a valve 8 to a low pressure pump 9, and a flow line 10 with a valve 11 is connected to a water conduit 3, while the high pressure pump 6 is covered by a bypass line 12 containing a valve 13. In the near-mouth zone and a heisty injection well 5 (Fig. 3) is connected to the water conduit 3 through valves 14 and 15 and an additional line 16 through the valve 17 to remove contaminants of the spout, for example, into a mobile tank 18, while the tubing

pipes 19 are connected hydraulically to the conduit 3 with the reservoir 20 through the bottom-hole zone of the reservoir 21. Additionally, the conduit 3 is equipped with a sampler nozzle 22.

The system for maintaining reservoir pressure works as follows (for example, a specific implementation).

A group of low-pressure injection wells 5 with an injection rate of 50 to 200 m 3 / day at a wellhead pressure of 10 MPa and a group of high-pressure injection wells 4 with an injection rate of 800 m 3 / day at a wellhead pressure of 5 MPa in a single hydrodynamic system are distinguished (Figure 1) .

The water prepared at the head treatment plants 1 is supplied by a low-pressure pump 9 and a high-pressure pump 6 (Figure 2) as part of a cluster pumping station 2 (Figure 1) into water conduits 3 and is pumped into injection wells 4 and 5 of different injectivity (stream I) in a single hydrodynamic system through tubing 19 (Figure 3) with a flow rate of 1050 m 3 / day and a pressure of 11 MPa on the discharge of the high pressure pump 6 (Figure 2) to maintain reservoir pressure in the reservoir 20 (Figure 3) , while the valve 8 (Figure 2) on the input line 7 and the valve 11 on flow line 10 of the high pressure pump 6 is open, the valve 13 on the bypass line 12 is closed. The low pressure pump 9 develops a pressure of about 0.8 MPa on the outflow and can be located both as part of a cluster pumping station 2 (Figure 1), and in the territory of the head treatment facilities 1. The injected water has a low concentration of oil particles and suspended solids (about 10 ... 20 mg / l) with insignificant sizes - about 2 ... 20 microns.

When stopping the operation of pumps 6 and 9 (Figure 2), for example, in accordance with the schedule of periodic (cyclic) injection, a depression of up to 5 MPa is created in the hydrodynamic system. Wellhead pressure on low-pressure injection wells 5 (FIG. 1) drops to 5 MPa, and from low-pressure injection wells with low-permeability formations 20 (FIG. 3), liquid is poured (stream II) into water conduits 3 and from water conduits 3 to high-pressure injection wells 4 (Figure 1) in a volume of the order of 10 ... 20 m 3 . The spout can also be organized forcibly by draining the water from the conduit to the tank at the cluster pump station 2. When the fluid moves from low-pressure injection wells 5 to conduit 3 (Figure 3), contaminants are removed from the bottom-hole zone of the formation 21. The outflowing fluid contains a significant concentration of contaminants (250 ... 1200 mg / l, and in individual portions reaching tens and hundreds of g / l), carried out from the bottom-hole zone of the formation 21 and consisting of oil globules and solid suspended particles. Highly responsive

injection well 4 (FIG. 1), into which the spout from the low-acceptivity injection well 5 is directed, are selected in accordance with the reservoir properties of the highly permeable productive layer uncovered by it, which allow receiving contaminated spout water (stream II).

Before resuming the injection of water into the low-injection well 5, the valve 8 is closed (Figure 2) on the inlet line 7 and the valve 11 on the flow line 10 of the high pressure pump 6, the valve 13 is opened on the bypass line 12 (Figure 2), while at the mouth low-injection wells 5 (Figure 3), close the valve 15, install an additional line 16 with a valve 17, which connects the hydraulic conduit 3 with a mobile tank 18. Next, start the low pressure pump 9 (Figure 2), which transports water through the bypass line 12 with head of treatment facilities 1 (Fig. 1) to the mouth of a low-pressure injection well 5, and the pollutants produced by the spout are flushed by directing contaminated water from a water conduit 3 (Fig. 3) to a mobile tank 18 along an additional line 16 (stream III) through an open valve 17. The low pressure developed by the low pressure pump 9 (Figure 2) allows you to safely carry out work near the mobile tank 18 (Figure 3), connected by an additional line 16 to the wellhead fittings of the low-pressure injection well 5 compared to high yes leniem that develops high-pressure pump 6 (Figure 2). The volume of water drawn from the conduit 3 into the mobile tank 18 (Figure 3) is equal to the volume of the section of the conduit from the mouth of the low-pressure injection well 5 (Figure 1) to the tee-outlet to the high-pressure injection well 4 (in the specific embodiment, 3 m 3 ) If the spout was made forcibly into the tank at the cluster pumping station 2 (Figure 1), then the volume of water taken from the conduit 3 when flushing into the mobile tank 18 (Figure 3) is equal to the volume of the conduit from the cluster pumping station 2 (Figure 1) to the mouth of the low-pressure injection well 5 (in the example of a specific implementation - 5 m 3 ). The physical volume of water taken into the mobile tank 18 (FIG. 3) is controlled, for example, using an overhead flow meter and counting the time of the spout, or by the level of the mobile tank 18. The visually impurity content in the water (stream III) is controlled by sampling through a sampler 22. With a significant reduction in the content of contaminants in the withdrawn water (stream III), the washing of the water conduit 3 is completed and the initial technological scheme of pumping water into the highly sensitive injection wells 4 (Figure 1) and low hemisty injection wells 5, while opening the valve 15 (Figure 3), close

the valve 17 and dismantle the additional line 16, and also at the cluster pump station close the valve 13 (Figure 2) on the bypass line 12, open the valve 8 on the input line 7 and the valve 11 on the flow line 10 of the high pressure pump 6 and start it in work with a flow rate of 1050 m 3 / day and a pressure of 11 MPa on the outlet to maintain reservoir pressure in the reservoir.

Thus, the proposed system for maintaining reservoir pressure allows cleaning the bottom-hole zone of the reservoir of low-pressure injection wells by pouring a portion of the injected water, which occurs when there is a hydraulic connection between the wells that have opened the reservoirs of various permeabilities, as well as flushing the water pipelines with water under low pressure before resuming its injection, preventing contamination of the spout from entering the low-pressure injection well and re-contamination of the bottomhole formation zone of the low and ismous injection wells.

The technical and economic efficiency of the proposed system for maintaining reservoir pressure is achieved by maintaining the injectivity of injection wells at the design level, disposing of contaminants removed from the bottom-hole zone of the reservoir by removing them from the water conduit system, and additionally cleaning the internal cavity of the water conduits by washing.

The use of this proposal allows for small additional capital costs using the existing reservoir pressure maintenance system to restore the injectivity of low-permeability formations without underground and overhaul of wells due to liquid spills and disposal of contaminants carried out from the bottom-hole formation zone partially into high-pressure injection wells, as well as with subsequent removal contaminants from the water supply system by rinsing them with clean water from the head plant structures, to significantly reduce the pollution of distribution pipelines by spill contamination due to their additional washing, to increase the time between overhauls of the bottom-hole zone of injection wells and, as a result, to save material costs for maintaining reservoir pressure.

Claims (1)

  1. The reservoir pressure maintenance system, including a high pressure pump, injection wells of high and low injectivity, combined by water conduits in a single hydrodynamic system, characterized in that the input line of the high pressure pump is equipped with a low pressure pump and the high pressure pump is covered by a bypass line with a valve, the water conduit in the near-mouth zone of the low-pressure injection well is equipped with an additional line with a valve.
    Figure 00000001
RU2006118287/22U 2006-05-26 2006-05-26 Plastic pressure support system RU57358U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2006118287/22U RU57358U1 (en) 2006-05-26 2006-05-26 Plastic pressure support system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2006118287/22U RU57358U1 (en) 2006-05-26 2006-05-26 Plastic pressure support system

Publications (1)

Publication Number Publication Date
RU57358U1 true RU57358U1 (en) 2006-10-10

Family

ID=37436096

Family Applications (1)

Application Number Title Priority Date Filing Date
RU2006118287/22U RU57358U1 (en) 2006-05-26 2006-05-26 Plastic pressure support system

Country Status (1)

Country Link
RU (1) RU57358U1 (en)

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2450120C1 (en) * 2010-12-17 2012-05-10 Открытое акционерное общество "Татнефть" имени В.Д. Шашина System to pump water and clean bottomhole formation zone of injection well
USD683230S1 (en) 2012-06-07 2013-05-28 Colgate-Palmolive Company Container
USD683229S1 (en) 2012-06-07 2013-05-28 Colgate-Palmolive Company Container
USD683237S1 (en) 2012-06-07 2013-05-28 Colgate-Palmolive Company Container
USD683631S1 (en) 2012-06-07 2013-06-04 Colgate-Palmolive Company Container
USD684064S1 (en) 2012-06-07 2013-06-11 Colgate-Palmolive Company Container
USD684473S1 (en) 2012-06-07 2013-06-18 Colgate-Palmolive Company Container
USD684864S1 (en) 2012-06-07 2013-06-25 Colgate-Palmolive Company Container
USD688130S1 (en) 2012-06-07 2013-08-20 Colgate-Palmolive Company Container
USD688131S1 (en) 2012-06-07 2013-08-20 Colgate-Palmolive Company Container
USD688558S1 (en) 2012-06-07 2013-08-27 Colgate-Palmolive Company Container
USD689367S1 (en) 2012-06-07 2013-09-10 Colgate-Palmolive Company Container
USD689775S1 (en) 2012-06-07 2013-09-17 Colgate-Palmolive Company Container
RU2493361C1 (en) * 2012-02-27 2013-09-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Тюменский государственный нефтегазовый университет" (ТюмГНГУ) Method for controlling multimachine complex of reservoir pressure maintenance system
USD690204S1 (en) 2012-06-07 2013-09-24 Colgate-Palmolive Company Container
USD691045S1 (en) 2012-06-07 2013-10-08 Colgate-Palmolive Company Container closure
USD691042S1 (en) 2012-06-07 2013-10-08 Colgate-Palmolive Company Container closure
USD691043S1 (en) 2012-06-07 2013-10-08 Colgate-Palmolive Company Container closure
USD691044S1 (en) 2012-06-07 2013-10-08 Colgate-Palmolive Company Container closure
USD694629S1 (en) 2012-06-07 2013-12-03 Colgate-Palmolive Company Container
USD694630S1 (en) 2012-06-07 2013-12-03 Colgate-Palmolive Company Container
USD694631S1 (en) 2012-06-07 2013-12-03 Colgate-Palmolive Company Container
USD708948S1 (en) 2012-06-07 2014-07-15 Colgate-Palmolive Company Cap for a container
USD708949S1 (en) 2012-06-07 2014-07-15 Colgate-Palmolive Company Cap for a container

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2450120C1 (en) * 2010-12-17 2012-05-10 Открытое акционерное общество "Татнефть" имени В.Д. Шашина System to pump water and clean bottomhole formation zone of injection well
RU2493361C1 (en) * 2012-02-27 2013-09-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Тюменский государственный нефтегазовый университет" (ТюмГНГУ) Method for controlling multimachine complex of reservoir pressure maintenance system
USD683229S1 (en) 2012-06-07 2013-05-28 Colgate-Palmolive Company Container
USD683237S1 (en) 2012-06-07 2013-05-28 Colgate-Palmolive Company Container
USD683631S1 (en) 2012-06-07 2013-06-04 Colgate-Palmolive Company Container
USD684064S1 (en) 2012-06-07 2013-06-11 Colgate-Palmolive Company Container
USD684473S1 (en) 2012-06-07 2013-06-18 Colgate-Palmolive Company Container
USD684864S1 (en) 2012-06-07 2013-06-25 Colgate-Palmolive Company Container
USD688130S1 (en) 2012-06-07 2013-08-20 Colgate-Palmolive Company Container
USD688131S1 (en) 2012-06-07 2013-08-20 Colgate-Palmolive Company Container
USD688558S1 (en) 2012-06-07 2013-08-27 Colgate-Palmolive Company Container
USD689367S1 (en) 2012-06-07 2013-09-10 Colgate-Palmolive Company Container
USD689775S1 (en) 2012-06-07 2013-09-17 Colgate-Palmolive Company Container
USD683230S1 (en) 2012-06-07 2013-05-28 Colgate-Palmolive Company Container
USD690204S1 (en) 2012-06-07 2013-09-24 Colgate-Palmolive Company Container
USD691045S1 (en) 2012-06-07 2013-10-08 Colgate-Palmolive Company Container closure
USD691042S1 (en) 2012-06-07 2013-10-08 Colgate-Palmolive Company Container closure
USD691043S1 (en) 2012-06-07 2013-10-08 Colgate-Palmolive Company Container closure
USD691044S1 (en) 2012-06-07 2013-10-08 Colgate-Palmolive Company Container closure
USD694629S1 (en) 2012-06-07 2013-12-03 Colgate-Palmolive Company Container
USD694630S1 (en) 2012-06-07 2013-12-03 Colgate-Palmolive Company Container
USD694631S1 (en) 2012-06-07 2013-12-03 Colgate-Palmolive Company Container
USD694624S1 (en) 2012-06-07 2013-12-03 Colgate-Palmolive Company Container closure
USD700056S1 (en) 2012-06-07 2014-02-25 Colgate-Palmolive Company Container
USD708948S1 (en) 2012-06-07 2014-07-15 Colgate-Palmolive Company Cap for a container
USD708949S1 (en) 2012-06-07 2014-07-15 Colgate-Palmolive Company Cap for a container

Similar Documents

Publication Publication Date Title
CN101921023B (en) Gas breaking and gas stripping linked double-phase vacuum underground water pumping in-situ repair method
US6467994B1 (en) Apparatus and method for beneficial use or handling of run-off or collected water
US3053320A (en) Fluid injection apparatus wells
JP2004524467A (en) How to remove sediment from a sand trap
AU5426401A (en) Gray-water recycling system
CN104612235B (en) The dirty separate system of intelligent rain
CN105298490B (en) Underground fluid Stratified Sampling apparatus and method based on U-tube technology
KR101830288B1 (en) Apparatus for remediating oil-polluted ground water
CN101164920A (en) Deep treatment and resource regeneration method for oil field extracted waste water
KR20100044505A (en) Waterway structure for prevention of foam formation at the discharge channel of the power plant
CN104445693B (en) The production unit of emulsion dedicated water is joined under a kind of mine
EP0646213A1 (en) Process and tool for laying underground collector mains for liquids and gases
CN105649578A (en) Vertical-well double-layer partial-pressure commingling method and device for coalbed methane
RU2415253C1 (en) Immersed pump with cleaned in well filter
CN101215829A (en) Controllable siphon discharging device and operation method for reservoir drainage or flood discharge
RU2411055C1 (en) Complex cluster installation for dehydration of oil and purification and utilisation of produced reservoir water
CN106277406B (en) Series progressive underground water heavy metal pollution in-situ remediation system and restorative procedure
CN205839923U (en) A kind of novel intelligent grid storm water man-agement system
CN105544697B (en) Region burst rainwater based on combined system pipe network shunts, regulated and stored and processing system
CN105399245B (en) The prosthetic device and its restorative procedure of hexavalent chromium polluted underground water
KR101622222B1 (en) Rainwater utilizing apparatus for drought and flood damage and sink hole prevention
TWI454618B (en) Pump system for conveying a first fluid using a second fluid
CN104245081A (en) Integrated unit for intake and pretreatment with local backwashing
BRPI0619753A2 (en) a method and apparatus for separating and injecting water from a stream containing descending water and hydrocarbon into a production well
WO2001066910A1 (en) Device and method for separating oil and water

Legal Events

Date Code Title Description
MM1K Utility model has become invalid (non-payment of fees)

Effective date: 20150527