CN203308442U

CN203308442U - φ95mm ground direct control distributor

Info

Publication number: CN203308442U
Application number: CN2013203747578U
Authority: CN
Inventors: 黄有泉; 孙晓明; 郝伟东; 王立勋; 梁洪松
Original assignee: Petrochina Co Ltd; Daqing Oilfield Co Ltd
Current assignee: Petrochina Co Ltd; Daqing Oilfield Co Ltd
Priority date: 2013-06-27
Filing date: 2013-06-27
Publication date: 2013-11-27
Anticipated expiration: 2023-06-27

Abstract

The utility model relates to a φ95mm ground direct control distribution device. It mainly solves the problem that the existing casing damaged oil well cannot be finely subdivided. It is characterized in that: the opening end of the sealing head and the lower joint are respectively equipped with a first-level seal; the upper part of the inner cavity of the body is sequentially threaded with a pressure-resistant outer cover II and a pressure-resistant outer cover I; the upper port of the inner cavity of the pressure-resistant outer cover I is fixed with a seal Plug, the upper part of the sealing plug is connected to the secondary seal; the body cavity is longitudinally opened with a cable channel h, and the middle part of the body is radially opened with a through hole from the outer wall to the cable channel h, and a compression screw A and a pressure sensor are built in the through hole ;The lower part of the cable channel h is connected with a secondary seal; the pressure-resistant outer cover Ⅰ, the pressure-resistant outer cover Ⅱ and the inner cavity of the body are connected with sealing plugs, circuit components, circuit board brackets, motor covers, motor combinations, and shaft couplings in sequence from top to bottom. Device assembly, dynamic seal assembly, transmission shaft, upper piston barrel, piston, lower piston barrel. The φ95mm surface direct-controlled proration device can realize the layered production of casing damaged oil wells.

Description

φ 95mm ground direct controlled type production mandrel

Technical field

The utility model relates in the oil field development technical field a kind of production mandrel used, especially OnePlant φ 95mm ground direct controlled type production mandrel.

Background technology

Conventional automatically controlled layered bottom-hole regulator technology is mature on the whole at present, and reliably, switch motion is flexible, can meet the needs of on-the-spot test and regulation and control, for the separate zone production of oil well end provides effective means for the sealing of going into the well, insulation.But along with the growth of oil field development and the exploitation time limit, the casing damaged well increasing year by year, and, due to size restrictions, the automatically controlled layered bottom-hole regulator of routine can not be applied in to cover and damage on the oil well of repairing.Therefore for cover, damage oil well and can't realize meticulous separate zone production.

Summary of the invention

The utility model is to overcome the cover damage oil well existed in background technology can't realize the problem of separate zone production, and provides OnePlant φ 95mm ground direct controlled type production mandrel.This φ 95mm ground direct controlled type production mandrel, can realize overlapping the meticulous separate zone production of damaging oil well.

The invention for solving the technical problem can reach by following technical solution: this φ 95mm ground direct controlled type production mandrel, comprise seal head, the positive and negative box cupling of top connection, body, the positive and negative box cupling of lower contact, lower contact, the positive and negative box cupling upper and lower side of described top connection connects respectively the upper end of seal head and body, the positive and negative box cupling upper and lower side of lower contact connects respectively body lower end and lower contact, in described seal head openend and lower contact, have cable passage, lower cable passage, in upper cable passage, lower cable passage, primary seal is housed respectively; Chamber body top be threaded successively resistance to compression outer cover II and resistance to compression outer cover I; Resistance to compression outer cover I inner chamber upper port is fixed with seal plug, and seal plug top connects secondary seal; The body cavity vertically has cable passage h, and the body middle part radially has through hole by outer wall to cable passage h, and through hole is built-in with and compresses plug screw A and pressure sensor, compresses plug screw A pressure sensor is fixed on body; Cable passage h bottom is connected with secondary seal; On the positive and negative box cupling of body and top connection, have the passageway bridge of UNICOM; Resistance to compression outer cover I, resistance to compression outer cover II and chamber body are connected with seal plug, circuit unit, circuit board support, motor cover, motor combination, coupling assembly, dynamic sealing assembly, power transmission shaft, upper piston cylinder, piston, lower piston cylinder from top to bottom in turn; Wherein circuit unit is arranged on circuit board support, motor combination is equipped with motor cover outward, the motor combination bottom connects coupling assembly and power transmission shaft, and the power transmission shaft outside of coupling assembly bottom is equipped with dynamic sealing assembly, between power transmission shaft and coupling assembly, dynamic sealing assembly is arranged; The power transmission shaft lower end piston that is threaded, the piston outside is equipped with upper piston cylinder and lower piston cylinder.

The utility model is compared and can be had following beneficial effect with the above-mentioned background technology: this φ 95mm ground direct controlled type production mandrel, owing to adopting said structure, by cable and ground instrument, at any time Φ 95mm production mandrel is carried out various test jobs and carries out the switch motion of valve, by analyzing the zonal pressure that measure each period, Temperature numerical, understand the reservoir parameter Changing Pattern, and carry out reserve estimate and production capacity budget, find main product layer and high aquifer formation to control, thereby realize multilayer layering intelligent stratum test, intelligent control, for damaging repairing and reinforcement well segmentation exploitation, casing damaged well and cover provide technical support.

The accompanying drawing explanation:

Accompanying drawing 1 is structural representation of the present utility model;

Accompanying drawing 2 is structural representations of the utility model primary seal;

Accompanying drawing 3 is structural representations of the utility model secondary seal.

In figure: 1. primary seal, 2. secondary seal, 3. seal head, 4. seal plug, 5. sealing ring, 6. resistance to compression outer cover I, 7. resistance to compression outer cover II, 8. circuit unit, 9. circuit board support, 10. motor cover, 11. motor combination, 12. the positive and negative box cupling of top connection, 13. coupling assembly, 14. passageway bridge, 15. dynamic sealing assembly, 16. power transmission shaft, 17. upper piston cylinder, 18. piston, 19. pressure sensor, 20. compress plug screw A, 21. body, 22. lower piston cylinder, 23. the positive and negative box cupling of lower contact, 24. lower contact, 25. clamp nut, 26. sealing bead, 27. compression plug screw, 28. sealing-plug, 29. copper packing, the h cable passage.

The specific embodiment:

The utility model is described in further detail below in conjunction with accompanying drawing:

As shown in Figure 1, this φ 95mm ground direct controlled type production mandrel, comprise seal head 3, the positive and negative box cupling 12 of top connection, body 21, the positive and negative box cupling 23 of lower contact, lower contact 24, positive and negative box cupling 12 upper and lower sides of described top connection connect respectively the upper end of seal head 3 and body 21, and positive and negative box cupling 23 upper and lower sides of lower contact connect respectively body 21 lower ends and lower contact 24; In described seal head 3 openends and lower contact 24, have cable passage, lower cable passage, in upper cable passage, lower cable passage, primary seal 1 is housed respectively; Body 21 inner chamber tops be threaded successively resistance to compression outer cover II 7 and resistance to compression outer cover I 6; Resistance to compression outer cover I 6 inner chamber upper port are fixed with seal plug 4, and 4 of resistance to compression outer cover I 6 and seal plugs are equipped with sealing ring 5, and seal plug 4 tops connect secondary seal 2; Body 21 cavitys vertically have cable passage h, and body 21 middle parts radially have through hole by outer wall to cable passage h, and through hole is built-in with and compresses plug screw A20 and pressure sensor 19, compresses plug screw A20 pressure sensor 19 is fixed on to test pressure on body 21; Cable passage h bottom is connected with secondary seal 2; On the positive and negative box cupling 12 of body 21 and top connection, have the passageway bridge 14 of UNICOM, make liquid in lower floor's oil pipe from moving to upper stream under the effect of oil pumper passageway bridge 14; Resistance to compression outer cover I 6, resistance to compression outer cover II 7 and body 21 inner chambers are connected with seal plug 4, circuit unit 8, circuit board support 9, motor cover 10, motor combination 11, coupling assembly 13, dynamic sealing assembly 15, power transmission shaft 16, upper piston cylinder 17, piston 18, lower piston cylinder 22 from top to bottom in turn; Wherein circuit unit 8 is arranged on circuit board support 9, control the regular rotation of motor combination 11, the outer motor cover 10 that is equipped with of motor combination 11, motor combination 11 bottoms connect coupling assembly 13 and power transmission shaft 16, motor combination 11 drives power transmission shaft 16 and rotates under the effect of coupling assembly 13, power transmission shaft 16 outsides of coupling assembly 13 bottoms are equipped with dynamic sealing assembly 15, have dynamic sealing assembly 15 to guarantee the sealing of motor combination 11 upper ends between power transmission shaft 16 and coupling assembly 13; The power transmission shaft 16 lower ends piston 18 that is threaded, piston 18 outsides are equipped with upper piston cylinder 17 and lower piston cylinder 22; Piston 18 and power transmission shaft 16 are delivered in upper piston cylinder 17 and 22, lower piston cylinder is done rectilinear motion through screw thread, realize opening, close and fixing aperture of stratum liquid measure switch; Cable is introduced circuit unit 8 through primary seal 1, secondary seal 2, seal plug 4, cable is from being divided into two parts on circuit unit 8 after compressing stifled 9, a part is connected to motor combination 11, another part is divided into two parts after going downwards to cable passage h, part cable is connected to pressure sensor 19, and another part enters into the cable-passing packer of next stage along the descending primary seal 1 connected successively in secondary seal 2, lower cable passage of cable passage h.

As shown in Figure 2, described primary seal 1 is connected to sealing bead 26 for clamp nut 25 upper ends; As shown in Figure 3, described secondary seal 2 comprises clamp nut 25, sealing bead 26, sealing-plug 28, compresses plug screw 27 and copper packing 29, compress plug screw 27 upper grooves and be built-in with clamp nut 25, clamp nut 25 bottoms are connected to sealing bead 26, compress plug screw 26 lower recess and be built-in with sealing-plug 28, compress plug screw 27 ends, bottom and be pressed with copper packing 29.

When described φ 95mm ground direct controlled type production mandrel uses, φ 95mm ground direct controlled type production mandrel is connected in the flow string below, by a plurality of minor diameter cable-passing packers and a plurality of Φ 95mm ground direct controlled type production mandrel, constitute and join the product tubing string, be lowered to cover and damage designated depth in oil well.Ground control unit is controlled the circuit unit of Φ 95mm ground direct controlled type production mandrel by cable, circuit unit is controlled the regular rotation of motor, motor drives power transmission shaft and rotates under the effect of shaft coupling, piston and power transmission shaft are under the transfer function of screw thread, do rectilinear motion, realize opening, close and fixing aperture of switch; Recovery pressure at switch closed condition lower pressure sensor formation testing, stream in switch closed condition lower pressure sensor test oil pipe is pressed, liquid in lower floor's oil pipe is from moving to upper stream under the effect of oil pumper the passageway bridge of body, until flow string is to well head.

Claims

1. A φ95mm ground direct control distribution device, including a sealing head (3), an upper joint positive and negative coupling (12), a body (21), a lower joint positive and negative coupling (23), a lower joint (24) , the upper and lower ends of the positive and negative couplings (12) of the upper joint are respectively connected to the upper end of the sealing head (3) and the body (21), and the upper and lower ends of the positive and negative couplings (23) of the lower joint are respectively connected to the lower end and the lower end of the body (21) The joint (24) is characterized in that: the opening end of the sealing head (3) and the lower joint (24) are respectively provided with an upper cable channel and a lower cable channel, and the upper cable channel and the lower cable channel are respectively equipped with a first-level seal (1); The upper part of the inner cavity of the main body (21) is threaded in turn with the pressure-resistant outer cover II (7) and the pressure-resistant outer cover I (6); the pressure-resistant outer cover I (6) is fixed with a sealing plug (4) on the upper port of the inner cavity , the upper part of the sealing plug (4) is connected to the secondary seal (2); the cavity of the body (21) is longitudinally opened with a cable channel h, and the middle part of the body (21) is radially opened with a through hole from the outer wall to the cable channel h, and the through hole Built-in compression plug A (20) and pressure sensor (19), the compression plug A (20) fixes the pressure sensor (19) on the body (21); the lower part of the cable channel h is connected with a secondary seal (2 ); the main body (21) and the positive and negative collars of the upper joint (12) have a bridge-like channel (14) for communication; the pressure-resistant outer cover I (6), the pressure-resistant outer cover II (7) and the inner cavity of the main body (21) The sealing plug (4), the circuit assembly (8), the circuit board support (9), the motor cover (10), the motor assembly (11), the coupling assembly (13), and the dynamic sealing assembly are connected sequentially from top to bottom (15), transmission shaft (16), upper piston cylinder (17), piston (18), lower piston cylinder (22); wherein the circuit assembly (8) is installed on the circuit board bracket (9), and the motor assembly (11) There is a motor cover (10) outside, the lower part of the motor combination (11) is connected to the coupling assembly (13) and the drive shaft (16), and the drive shaft (16) at the bottom of the coupling assembly (13) is equipped with a dynamic seal assembly (15), there is a dynamic sealing assembly (15) between the transmission shaft (16) and the coupling assembly (13); the lower end of the transmission shaft (16) is threaded to the piston (18), and the piston (18) is equipped with an upper piston cylinder (17) and the lower cylinder (22).

2. The φ95mm ground direct-control distributing device according to claim 1, characterized in that: the cable passes through the first-level seal (1) of the opening end of the sealing head (3), the second-level seal (2) inside, The sealing plug (4) is introduced into the circuit assembly (8), and the cable is divided into two parts from the circuit assembly (8) through the compression plug (9), one part is connected to the motor assembly (11), and the other part goes down to the cable channel h Finally, it is divided into two parts, one part of the cable is connected to the pressure sensor (19), and the other part is connected to the secondary seal (2) inside the front and back collars (23) of the lower joint and the first-level seal in the lower cable channel along the cable channel h. The seal (1) enters into the cable packer of the next stage.

3. The φ95mm ground direct-control distribution device according to claim 1 or 2, characterized in that: said primary seal (1) is a sealing ball (26) connected to the lower end of the compression nut (25).

4. The φ95mm ground direct control distribution device according to claim 1 or 2, characterized in that: the secondary seal (2) includes a compression nut (25), a sealing ball (26), a sealing plug (28), compression screw plug (27) and copper pad (29), compression nut (25) is built in the upper groove of compression screw plug (27), and the lower part of compression nut (25) is connected with sealing ball ( 26), a sealing plug (28) is built in the lower groove of the compression plug (27), and a copper pad (29) is pressed at the lower end of the compression plug (27).