Multiple drilling rig with simplified layout of assembly

FIELD: oil and gas production.

SUBSTANCE: multiple drilling rig consists of units made in form of modules including frames with process equipment, unit of well cementing, unit of circulation system, pump unit with drill pumps, unit of electrical equipment, compressor unit, and also derrick-hoist unit and receive bridge with drilling pipes mounted on guides for horizontal transfer. The rig is composed of two rows on 4 parallel guides. Also, the units-modules are connected with a system of communication and can change their relative position. The receiving bridge with drilling pipes is set in space between rows and is connected with the derrick-hoist unit. The latter is mounted on internal guides and can be retracted beyond overall line of the assembly formed with units-modules. This layout reduces area for drilling rig maintenance and communications between units-modules.

EFFECT: installation of additional shelters for heating working areas; reduced heat losses from shelter surface; raised efficiency of rig operation.

5 cl, 5 dwg

 

The invention relates to oil and gas equipment, namely, drilling rigs, and is intended for pad drilling exploration and production oil and gas wells.

The famous "Repair drilling unit (Patent RF №2320842, the priority date of 29.06.2006, the patent owner: limited liability Company "Licensed Company "KUNGUR"), the Equipment placed on the platform, which is installed on the rail guides. The unit is designed for servicing oil and gas wells, especially in the specific conditions of the cluster development wells. However, the design of unit not provided by the application of additional units to expand its capabilities for use of the unit when Bush exploration and production of oil and gas wells.

For pad drilling exploration and production oil and gas wells of Russian and foreign manufacturers produce special well drilling rigs, which allows multiple drilling (drilling multiple wells on one rig floor when moving complex rig special-tables-guides or special basis).

The famous "Rig" (Patent of RF # 24231, the priority date of 05.10.2001, the patent: "the Engineer is Nero-economic innovation center Open joint stock company "Surgutneftegas"), contains blocks-modules with the drilling equipment installed echelon fastened together quick couplings and connected through a passage from the work site until the end of the module. The disadvantage of this arrangement is the complexity of the operation for the replacement of this module in case of its failure, as well as installation of additional modules.

Other well known drilling rigs also contain blocks-modules with the drilling equipment: cable hoist block, block circulation system, unit drilling pumps, cementing unit, compressor unit and the unit of electrical equipment that are mounted on a common guide with the possibility of lateral movement on two rails. While the equipment units of the receiving bridge with shelving for working with pipes located on the side generally perpendicular to the direction of movement of the drilling rig, which when moving train to another well blocks placed at the side of the train have to be removed.

A similar design has, for example, well drilling rig BU 5000/320 EUK-I ("a New generation of drilling rigs Uralmash plant in Western Siberia" Vggallery and other reference book. 2002).

The location of blocks of well drilling rig on two General guides to move has su is the natural enemy weaknesses. The process equipment in the blocks sequentially in a single line (echelon) excludes the possibility of installation in the immediate vicinity of the wellhead, which degrades the performance of technological operations (for example, the cementing unit is located at the end of the echelon part of the well drilling rig), makes it impossible for the extra blocks, which reduces the efficiency of operation of the installation.

Partially the drawbacks are solved in the famous "Well drill rig" (Patent of RF # 83280, priority date 23.10.2008, the patentee "closed joint stock company "Uralmekhanooborudovanie", EN). Well drilling rig includes cable hoist block, block circulation system, block mud pump, compressor unit, the unit of electrical equipment, cementing unit, which are arranged in echelon, with each unit made in the form of a module that is installed on the guide beams can travel on them. For more efficient operations well-drilling installation design allows you to install additional units. This analog is the closest to the problem at hand and therefore taken as the prototype of the claimed invention.

The disadvantage of the prototype is that when installing additional blocks well drilling set the WHC increases significantly in length (100 meters or more), that increases the length of the linking technological and electrical communications, increases the energy cost of pumping solutions and space heating, complicates the maintenance of the rig. Moreover, the arrangement of blocks echelon leads to a significant increase in the area for well drilling rig, consuming additional space for its placement and operation that increases the operating costs of the installation and makes it ineffective.

The technical objective of the claimed invention is to increase the efficiency of operation of well drilling rig in the construction of wells in remote Northern regions.

Technical result is achieved by the claimed fundamentally new simplified layout of well drilling rig, which contains blocks made in the form of modules, consisting of frames with technological equipment: block cementing, block circulating system, the pump block with drilling pumps, power equipment, compressor unit, as well as cable hoist unit and the receiving bridge with drilling pipes that are installed on the rails with the possibility of lateral movement, according to the invention the installation are arranged in two rows of four parallel rails, p. and this blocks the modules connected to the communication system and is installed with the possibility of changing their mutual provisions and receiving bridge with drilling pipes made with shelter and installed in the space between the rows, and the receiving bridge is connected with a cable hoist unit, which is installed on the inner rails with the nomination for the overall line layout formed by the blocks-modules, in addition, the receiving bridge with drilling pipes are also installed on the inner rails with the possibility of lateral movement or can be mounted on the frame units and to connect with them, in addition, the receiving bridge with drilling pipes provided with one or more racks, made in the form of units with shelter, and the racks can to be installed in any number of layout with the possibility of connecting them with the foster bridge.

The invention is illustrated by drawings.

Figure 1 shows a simplified schematic layout of well drilling rig.

Figure 2 shows a side view of the layout of well drilling rig.

Figure 3 shows a top view layout of well drilling rig.

Figure 4 shows the site for the well drilling rig with a simplified layout (declared).

Figure 5 shows a site for the well drilling rig (prototype).

The claimed invention "Well drilling rig with a simplified layout" (IG, 2), which contains blocks made in the form of modules, consisting of frames with technological equipment (figure 3): the unit of cementing 1, block circulation system 2, the pump block with drill pumps 3, unit 4 electrical, compressor block 5, as well as cable hoist unit 6 and the receiving bridge with drilling pipe 7, the rack 8, mounted on the rails with the possibility of lateral movement. The installation is arranged in two series: series a and series B in four parallel rails 9, 10, 11, 12. With this arrangement, the guide is formed of a Central pair of rails 10. 11. In each row blocks-modules are interconnected helical rods and axes, and also connected to the communications system and is installed with the possibility of changing their relative position.

The receiving bridge with drilling pipe 7 is made with a cover (not shown) and installed in the space between the rows a, B on the guides 10, 11, when receiving the axle is connected with a cable hoist unit 6, which is also mounted on the guides 10, 11 nominations for the overall line layout In the generated blocks-modules. The receiving bridge with drilling pipes can be installed on the surface of the guides 10, 11 with the possibility of lateral movement or on the surface of the RAM block-modules, between which it is installed. Receiving the OST drill pipe provided with one or more racks 8, made in the form of units. Racks can be installed in any number of layout, this should be made a connection of the racks with the foster bridge. All blocks with technological equipment, including receiving bridge and racks to him, have shelter from unwanted exposure to climatic conditions.

The job description

In the well construction cycle consists of preparatory work, the installation of the drilling rig, pre-drilling, the drilling process, the strengthening of the well casing, the strengthening of well cementing.

Before installation, well drilling rig prepares courts, Playground shown conventionally in figure 4, and for comparison, figure 5 shows the relative space of the prototype. On the ground (figure 4) establish parallel to each other 4 guides 9, 10, 11, 12 (figure 3). Then make installation design well drilling rig. Blocks-modules, consisting of frames with technological equipment, placed in two rows a And B on the guides 9, 10, 11, 12 in accordance with their functional purpose. Cable hoist block is placed between two rows of blocks of the modules on the Central pair of rails 10, 11. For cable hoist unit sets the receiving bridge with drilling pipes, while near the receiving bridge in any number of link sets CTE is lazhi. Followed by the connection of the racks with the foster bridge and establish shelter 13 (2) on the receiver bridge and shelves.

After installation of all blocks of well drilling rig on the shelves and receiving bridge stack drill pipe to supply them directly on the drilling floor. Drilling produces a lowering of the drilling tool on a drill string with a simultaneous flow of drilling fluid along the contour of its circulation. After drilling the first well drilling string is removed from the wells are dismantled on candles (folded pairs of drill pipe) and installed on the rig floor. On the shelves and receiving bridge place casing pipe for lowering into the borehole. Casing serves on the drilling floor, where they rolled and column lowered into a drilled well. The annulus between casing and borehole wall concreted using equipment unit cementing. Having finished cementing, well drilling rig moves within the wells four guides from hole to hole along with the technological and electrical equipment located on the blocks module without disassembly of all units, including the receiving bridge and pipe racks. In the prototype when moving the drilling rig to the next SLE is Gina have to dismantle the block-modules and pipe racks, which are located on the sides of the train on additional guides.

This placement of the blocks well drilling rig provides the reduction of communication to 30%, the reduction in the area to service the rig up to 40% (figure 4, 5) and reduce heat loss from the surface of a cover of the entire drilling system up to 30%. In addition covered and installed heating of work areas receiving bridge with shelving that allows you to increase the mechanization of working with pipes, and to improve the performance and security of these works, to ensure ease of maintenance and repair unit installation. Decreased distance from the installation to the barn, which increased the efficiency of the process of removing drill cuttings from the barn.

The use of declared well drilling rig with a simplified layout:

- reduced footprint and size of the drilling rig service, which reduced the costs of producing wells;

- decreased the time needed for shifting the equipment from hole to hole;

- optimized the location of technological equipment of the drilling rig and improved quality of work;

- created a favorable climate pipes and drilling tool, see who was the opportunity to automate the execution of these works, therefore enhancing the quality and productivity of work;

- reduced heat loss to the environment by optimizing geometric forms well drilling rig.

Stated well drilling rig with a simplified layout in "two rows" instead of known composition "echelon" can improve the safety and productivity of the staff, to reduce the number of "dismissed from the labor army days" (downtime)associated with adverse climatic conditions, to improve the working conditions of personnel during the operations, thereby enhancing the efficiency of operation of well drilling rig when Bush exploration and production of oil and gas wells, particularly in remote Northern regions.

1. Well drilling rig with a simplified circuit layout containing blocks, made in the form of modules, consisting of frames with technological equipment, the unit cementing, block circulating system, the pump block with drilling pumps, power equipment, compressor unit, as well as cable hoist unit and the receiving bridge with drilling pipes that are installed on the rails with the possibility of lateral movement, characterized in that the installation are arranged in two rows of four parallel what's guides, when this blocks the modules connected to the communication system and is installed with the possibility of changing their relative position, and the receiving bridge with drilling pipes installed in the space between the rows, while the receiving bridge is connected with a cable hoist unit, which is installed on the inner rails with the nomination for the overall line layout formed by blocks of modules.

2. Well drilling rig according to claim 1, characterized in that the receiving bridge with drilling pipe is installed on the inner rails with the possibility of lateral movement.

3. Well drilling rig according to claim 1, characterized in that the receiving bridge with drilling pipes installed on the frame units and connected them with the possibility of lateral movement.

4. Well drilling rig according to claim 1, characterized in that the receiving bridge with a drill pipe provided with a rack, made in the form of units with shelter, and racks can be several, and they are installed in any number of layout with the possibility of connecting them with the foster bridge.

5. Well drilling rig according to claim 1, characterized in that the receiving bridge with drilling pipes made with shelter.



 

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