Fracturing construction operation system
Technical Field
The utility model relates to a reservoir transformation construction technical field, in particular to fracturing construction operating system.
Background
The hydraulic fracturing technology is a necessary technology for developing compact oil. Because the physical property of a compact oil reservoir is poor, almost no industrial capacity exists in the natural state, and the economic capacity can be obtained only by means of hydraulic fracturing, the multi-section fracturing construction process plays an important role in the development process of compact oil and even the whole unconventional resource. At present, the fracturing construction scale of a horizontal well is getting larger and larger, and the fracturing construction is completed by means of the common cooperation of multiple sections, multiple clusters, large liquid amount, large sand amount, multiple sets of equipment and multiple modules, which can be called as industrial fracturing.
At present, when a horizontal well is subjected to horizontal well multi-section clustering fracturing, a plurality of horizontal wells are generally arranged on the same platform, and the volume of oil deposit production can be effectively increased by matching a synchronous fracturing technology or a chain fracturing technology with a horizontal well multi-section clustering fracturing technology, but no adaptive fracturing construction operation system exists.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a fracturing construction operating system suitable for adopt synchronous fracturing technique or chain fracturing technique to horizontal well multistage clustering fracturing.
Therefore, the utility model discloses technical scheme as follows:
the fracturing construction operation system comprises a water storage area, a liquid distribution area, a fracturing construction operation area, a test oil blowout operation area and a sand reservoir area which are distributed in a well field from inside to outside, and CO positioned at the adjacent side of the fracturing construction operation area2The construction method comprises the following steps of (1) operating areas and sand reservoir areas located on the adjacent sides of construction wells; wherein,
the water storage area comprises at least one soft tank for storing clear water;
the liquid distribution area comprises a first buffer tank group, a second buffer tank group, a third buffer tank group, a continuous mixing truck and a first crane which are arranged in a straight line; the first buffer tank group comprises a plurality of medicament tanks, the second buffer tank group comprises a plurality of fracturing liquid storage tanks, and the third buffer tank group comprises a plurality of acid liquid storage tanks; the soft tank is respectively connected with the tank bodies one by one through a plurality of water conveying pipelines and communicated with the tank bodies one by one, and each water conveying pipeline is provided with a flow control valve; the continuous mixing truck and the first crane are arranged between the soft tank and the buffer tank group; the liquid inlet end of the continuous mixing truck is connected and communicated with the soft tank through a water delivery pipeline, a flow control valve is arranged on the water delivery pipeline, and the liquid outlet end of the continuous mixing truck is respectively connected with the sand mixing truck through a liquid delivery pipeline;
the fracturing construction operation area is arranged adjacent to a construction well and comprises a plurality of fracturing pump truck groups for pumping fracturing fluid and a fracturing pump truck group for pumping supercritical CO2The fracturing pump truck group, a plurality of instrument trucks and a plurality of sand mixing trucks; the number of the instrument trucks is consistent with that of the fracturing pump truck groups, and each instrument truck is respectively connected with each fracturing pump truck in the corresponding fracturing pump truck group through a data transmission line so as to monitor each data in the working state of the instrument truck; each fracturing pump truck is communicated to a wellhead through a high-pressure manifold;
the sand mixing trucks are positioned between the construction wells and the fracturing pump truck groups, and the number of the sand mixing trucks is integral multiple of the number of the construction wells; the sand outlet end of each sand mixing truck is connected with each fracturing pump truck of the corresponding fracturing pump truck group through a sand conveying pipeline, and the liquid inlet end of each sand mixing truck is provided with a liquid conveying pipeline with a plurality of branch pipes, so that the sand outlet end of each sand mixing truck can be connected with the liquid outlet ends of a fracturing liquid storage tank, a medicament storage tank and/or an acid liquid tank through the liquid conveying pipelines to prepare fracturing sand mixing liquid according to a preset proportion;
CO2the working area comprises a plurality of liquid CO2Storage tank and plurality of liquid CO2A booster pump; liquid CO2Number of booster pumps and method for pumping supercritical CO2The number of the fracturing pump trucks in the fracturing pump truck group is consistent, and each liquid CO2The storage tank is filled with liquid CO2Infusion line and a liquid CO2The liquid inlet end of the booster pump is connected to ensure that the liquid carbon dioxide is in liquid CO2Pressurizing to supercritical liquid CO under the action of a booster pump2State, outlet end passing liquid CO2Infusion line and method for pumping supercritical CO2Is connected with one fracturing pump truck in the fracturing pump truck group and is positioned in liquid CO2Liquid CO between booster pump and corresponding fracturing pump truck2The infusion lines are all provided with a flow regulating valve;
the cable perforation operation area is arranged at the adjacent side of the construction well, and a tool rack for placing a cable perforation operation perforation tool string and related pipes is arranged in the cable perforation operation area;
the oil testing open flow operation area is arranged between the construction well and the well site inlet and comprises open flow pipelines and outlet tanks, the number of the open flow pipelines is consistent with that of the construction well, and the number of the outlet tanks is consistent with that of the construction well; each outlet tank is communicated with one construction well and a high-pressure manifold through a blowout pipeline, and each blowout pipeline is provided with an opening and closing valve;
the sand storehouse area is arranged on one side of the well site inlet, two sand hopper cars are arranged in the sand storehouse area, and a second crane is further arranged on the adjacent side of the sand storehouse area.
Furthermore, the soft tank is a tank body formed by connecting a plurality of small soft tanks in series.
Further, the fracturing construction operation system also comprises a living operation area arranged on the other side of the wellsite inlet, and the living operation area comprises at least one duty room, at least one conference room and at least one rest room.
Compared with the prior art, the fracturing construction operation system reasonably arranges the functional areas while reasonably arranging the different functional areas, so that the occupied area of the whole operation system is small, the functional arrangement is compact, the requirement of performing safe operation on a plurality of horizontal wells on the same platform by adopting a synchronous fracturing technology or a chain fracturing technology can be met, and the oil reservoir yield increasing volume is effectively improved.
Drawings
Fig. 1 is the utility model discloses a fracturing construction work system's schematic structure diagram.
Detailed Description
The present invention will be further described with reference to the following drawings and specific examples, but the following examples are by no means limiting the present invention.
As shown in fig. 1, the fracturing construction operation system is used in a fracturing construction operation well field of two horizontal wells located in the same construction area, and specifically comprises a water storage area, a sand reservoir area and CO which are reasonably distributed in the operation area2The system comprises an operation area, a liquid distribution area, a fracturing construction operation area, a cable perforation operation area and a test oil blowout operation area.
The water storage area is positioned at the innermost side of the operation area and comprises a soft tank 1 for storing clear water; specifically, the soft tank 1 can be a large tank body or a plurality of small soft tanks connected in series, so that the residual liquid amount in the water tank can be observed conveniently to supplement water in time.
The liquid distribution area is positioned adjacent to the water storage area and comprises a first buffer tank group 2, a second buffer tank group 3, a third buffer tank group 4, a continuous mixing truck 5 and a first crane 6; the first buffer tank group 2 comprises five medicament tanks arranged in parallel, the second buffer tank group comprises nine fracturing liquid storage tanks arranged in parallel, and the third buffer tank group comprises two acid liquid tanks arranged in parallel; the soft tank 1 is respectively connected with and communicated with each tank body in the first buffer tank group 2, the second buffer tank group 3 and the third buffer tank group 4 one by one through sixteen water conveying pipelines, and each water conveying pipeline is provided with a flow control valve to realize the opening and closing and the flow control of the water conveying pipelines; the continuous mixing truck 5 and the first crane 6 are arranged between the soft tank 1 and the buffer tank group; the liquid inlet end of the continuous mixing truck 5 is connected and communicated with the soft tank 1 through a water conveying pipeline, a flow control valve is arranged on the water conveying pipeline to realize the opening and closing and flow control of the water conveying pipeline, the liquid outlet end of the continuous mixing truck 5 is respectively connected with the sand mixing truck through a liquid conveying pipeline according to actual needs, and the mixing proportion of the fracturing sand and the fracturing liquid is controlled by simultaneously connecting a metering pump on the liquid conveying pipeline;
in the liquid preparation area, five medicament tanks in a first buffer tank group 2 are used for preparing different types of fracturing liquid additives, nine fracturing liquid storage tanks in a second buffer tank group 3 are used for preparing fracturing liquid, two acid liquid tanks in a third buffer tank group 4 are used for preparing acid liquid, and a continuous mixing truck 5 is used for dissolving guar gum in advance to prepare a guar gum solution; according to the liquid preparation requirement, the soft tank 1 pumps clear water to a fracturing liquid storage tank, a medicament tank, an acid liquid tank and/or a continuous blending vehicle 5; clear water in the soft tank 1 is provided by an external water delivery pipeline of a well site, and a water pump is arranged in the soft tank, so that the clear water is respectively pumped into the tank bodies with different functions to complete the preparation of guar gum liquid, fracturing liquid additive, acid liquid and the like in the early stage of fracturing; the crane 6 is used for adding solid guar gum, solid chemical reagents and the like into the continuous mixing truck 5 or different tank bodies in a hoisting mode.
The fracturing construction operation area is positioned between the liquid distribution area and a wellhead and comprises a first fracturing pump truck group 8-1, a second fracturing pump truck group 8-2, a third fracturing pump truck group 8-3, three instrument trucks and two sand mixing trucks; wherein,
the first fracturing pump truck group 8-1 and the second fracturing pump truck group 8-2 are both composed of six fracturing pump trucks and are respectively used for pumping fracturing fluid to the first construction well 10-1 and the second construction well 10-2; the third fracturing pump truck group 8-3 consists of two fracturing pump trucks which are respectively used for pumping supercritical liquid CO to the first construction well 10-1 and the second construction well 10-22(ii) a Each fracturing pump truck is communicated to a wellhead through a high-pressure manifold 9;
the three instrument trucks are respectively connected with the fracturing pump trucks in the first fracturing pump truck group 8-1, the fracturing pump trucks in the second fracturing pump truck group 8-2 and the fracturing pump trucks in the third fracturing pump truck group 8-3 through data transmission lines to monitor various data in the working state of the three instrument trucks;
the two sand mulling trucks are arranged between the buffer tank group and the fracturing pump truck group; the first sand mixing truck 7-1 is used for preparing fracturing sand mixing liquid for the first construction well 10-1 and is respectively connected with six fracturing pump trucks in the first fracturing pump truck group 8-1 through sand conveying pipelines; the second sand mixing truck 7-2 is used for preparing fracturing sand mixing liquid for the second construction well 10-2, and is respectively connected with six fracturing pump trucks in the second fracturing pump truck group 8-2 through sand conveying pipelines; the liquid inlet ends of the two sand mixing trucks are provided with a transfusion pipeline with a plurality of branch pipes, so that the sand mixing trucks can be connected with the liquid outlet ends of the fracturing liquid storage tank, the medicament storage tank and/or the acid liquid tank through the transfusion pipeline according to actual conditions, and the fracturing sand mixing liquid is prepared according to a preset proportion;
CO2the working area comprises four liquid CO2Storage tank and two liquid CO2A booster pump; every two liquid CO2The storage tanks are respectively filled with liquid CO2Infusion line and a liquid CO2The liquid inlet end of the booster pump is connected to ensure that the liquid carbon dioxide is in liquid CO2Is increased to supercritical liquid CO under the action of a booster pump2A state; two liquid CO2The outlet ends of the booster pumps respectively pass through liquid CO2The liquid conveying pipeline is connected with two fracturing pump trucks in the third fracturing pump truck group 8-3 and is positioned in liquid CO2Liquid CO between booster pump and fracturing pump truck2The infusion lines are respectively provided with a flow regulating valve; the CO is2The operation area is used for enhancing the penetration of reservoir stratum and making complicated seams before fracturing, and liquid CO is used2Pressurizing to form supercritical liquid CO2Then the fracturing pump truck is used for driving the fracturing fluid into the well bottom.
The cable perforation operation area is arranged at the adjacent sides of the two construction wells, because each section of fracturing is completed, the next section of cable perforation is constructed to be used as a bridge sealing plug, the cable takes the bridge perforating pipe column to go down to the sealing position, ignition is carried out to seal and a plurality of clusters of perforation at the lower end are completed; the cable perforating operation area is provided with a tool rack for placing cable perforating operation perforating tool strings, related pipes and the like.
The test oil blowout operation area is arranged between the two construction wells and the well site inlet and comprises two blowout pipelines and two outlet tanks; specifically, a first outlet tank 12-1 is respectively communicated with a first construction well 10-1 and a high-pressure manifold 9 through a first open-flow pipeline 11-1, a second outlet tank 12-2 is respectively communicated with a second construction well 10-2 and the high-pressure manifold 9 through a second open-flow pipeline 11-2, and each open-close valve is arranged on each open-flow pipeline; this test oil open flow operation district is used for carrying out open flow work after the fracturing construction is whole to be accomplished, and the fracturing returns the flowing back well head and is flowed to the open flow jar by the blowout preventer, and the liquid measure is measured out every day, goes out oil quantity, and well head pressure changes, returns flowing back liquid temperature and changes, is in addition exactly whether go out sand, whether have combustible toxic gas to produce etc. accomplish data acquisition work under the various working system.
The sand reservoir area 14 is arranged at one side far away from the water storage area, particularly at an inlet of a well site, the sand reservoir area is used for storing fracturing sand, two sand hopper trucks are arranged in the sand reservoir area and used for conveying the fracturing sand to the fracturing blending truck, and the second crane 15 is arranged at the adjacent side of the sand reservoir area 14 and is convenient for unloading the fracturing sand conveyed to the well site and conveying the fracturing sand to the sand reservoir area 14;
the living operation area is arranged at the other side of the well site inlet and specifically comprises a duty room 16-1, a rest room 16-2 and a meeting room 16-3.