CN2227194Y

CN2227194Y - Assembly preventer for oil recovery well head

Info

Publication number: CN2227194Y
Application number: CN 95212050
Authority: CN
Inventors: 李胜利; 王宪周; 刘训义; 罗绍伟; 田文伟
Original assignee: LUDA ECONOMIC DEVELOPMENT CORP ZHONGYUAN PETROLEUM PROSPECTING BUREAU
Current assignee: LUDA ECONOMIC DEVELOPMENT CORP ZHONGYUAN PETROLEUM PROSPECTING BUREAU
Priority date: 1995-05-30
Filing date: 1995-05-30
Publication date: 1996-05-15
Anticipated expiration: 2005-05-30

Abstract

The utility model relates to an assembly type protection device for an oil exploitation well opening. The assembly type protection device for an oil exploitation well opening is assembled into a closed structure by a bottom plate, a lateral plate, a rear plate, a top plate, a door plate, a screw plug protection device, a disk root protection device, and a code lock which are assembled by inner bolts through a connecting plate. Well opening equipment is closed. The bottom plate and the well opening equipment are fixed. The assembly type protection device for an oil exploitation well opening is convenient to assemble and disassemble on the spot, and is convenient to open. The assembly type protection device for an oil exploitation well opening is difficult to disassemble and damage from the exterior. The assembly type protection device for an oil exploitation well opening has superior anti-theft and anti-destroying effect. The damage of environment to oil exploitation equipment is reduced, and the hidden danger of fires is eliminated.

Description

Assembly type production wellhead protector

The utility model relates to a kind of assembly type production wellhead protector.

The production wellhead of oil play places under the field extreme environment usually, because artificial and natural destruction, oil extraction operation can not be carried out smoothly, for addressing this problem, at present indivedual Oilfield using cement houses formula protector, be about to production wellhead and place a house, but it is big that this device exists volume, the dismounting difficulty, the daily operation difficulty of well head is carried out or the like shortcoming, in addition, because pressure-relief valve is in protector, make in the protector and oil production equipment is in the natural gas high concentration region, therefore also have disaster hidden-trouble.

The purpose of this utility model provide a kind of improved, assembly type, easy to assemble, be fixed on the protector on the oil extraction well mouth equipment, this protector can prevent from artificially to reach natural destruction wellhead equipment effectively, convenient again simultaneously daily operation, and can get rid of disaster hidden-trouble simultaneously.

The purpose of this utility model is achieved in that by the assembled on site precast segment, oil production equipment is closed, but except polished rod and the pressure-relief valve, prevents from artificially to reach the destruction of environment to oil production equipment thereby reach.

Below in conjunction with the structure of accompanying drawing 1 detailed description the utility model assembly type production wellhead protector, and installation and working condition.

Label implication among Fig. 1 is: 1-base plate, 2-side plate, 3-side plate, 4-top board, 5-door-plate, 6-back plate, 7-plug protective device, 8-packing protective device, 9-junction plate, 10-inner bolt, 11-flange hole, 12-coded lock.

The utility model assembly type production wellhead protector comprises base plate [1]; side plate [2]; [3]; top board [4]; door-plate [5]; back plate [6]; plug protective device [7]; packing protective device [8]; coded lock [12]; wherein base plate [1] has flange hole [11]; be fixed on the flange of oil extraction well mouth equipment by this flange hole [11]; side plate [2]; [3] be fixed on the base plate [1] by inner bolt [10] by junction plate [9]; back plate [6] is fixed on base plate [1] by junction plate [9] by inner bolt [10]; side plate [2]; [3] on; top board [4] is fixed on side plate [2]; [3] and on back plate [6], door-plate [5] is installed on the side plate [2] by interior door-hinge (not shown), by coded lock [12] and side plate [3] locking; plug protective device [7] is fixed on the side plate [3] by inner bolt [10], and packing protective device [8] is fixed on the top board [4] by inner bolt [10].

When install at the utility model assembly type production wellhead protector scene; at first base plate [1] is fixed on the oil production equipment; successively by junction plate [9] inner bolt [10] fixed side [2], [3], back plate [6], top board [4], plug protective device [7], packing protective device [8]; by interior door-hinge door-plate [5] is installed at last, with dense block [12] locking.

Each precast segment of the utility model device can adopt straight carbon steel, and wall thickness can be 4-12mm, and weight is 15-70 kilograms.

The utility model assembly type production wellhead protector has following characteristics and advantage:

1, this device is by the assembling of the lightweight prefabricated component of single-piece, thereby staff's assembled on site, convenient disassembly, and is promptly detachable under the condition of not interrupting oil producing operation.

2, volume is little, and is rational in infrastructure, and it is convenient that the staff opens with private key.

3, this device adopts the fixing full-closed structure of inner bolt, and is fixed together with wellhead equipment, dismantles destruction from the outside and move very difficult, antitheft, tamper-proof effect superior.

4, this device is closed oil production equipment and has reduced the destruction of environment to oil production equipment.

5, this device places the device outside with pressure-relief valve, and therefore natural gas, is not formed the natural gas high concentration region by emptying in this device, got rid of disaster hidden-trouble.

Claims

1; a kind of assembly type production wellhead protector; it is characterized in that this device comprises base plate [1]; side plate [2]; [3]; top board [4]; door-plate [5]; back plate [6]; plug protective device [7]; packing protective device [8]; coded lock [12]; wherein base plate [1] has flange hole [11]; be fixed on the flange of oil extraction well mouth equipment by this flange hole [11]; side plate [2]; [3] be fixed on the base plate [1] by inner bolt [10] by junction plate [9], back plate [6] is fixed on base plate [1] by junction plate [9] by inner bolt [10]; side plate [2]; [3] on, top board [4] is fixed on side plate [2]; [3] and on back plate [6]; door-plate [5] is installed on the side plate [2] by interior door-hinge; by coded lock [12] and side plate [3] locking, plug protective device [7] is fixed on the side plate [3] by inner bolt [10], and packing protective device [8] is fixed on the top board [4] by inner bolt [10].

2, according to the device of claim 1, it is characterized in that wherein each precast segment is straight carbon steel, wall thickness is 4-12mm, weight is 15-70 kilograms.