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Novel electro-hydraulic integral bridge plug release tool

A bridge plug and tool technology, applied in the field of new electro-hydraulic integrated bridge plug delivery tools, can solve the problems of low efficiency and long working time, and achieve good bidirectional pressure bearing capacity, low cost and wide application range

Active Publication Date: 2015-02-25
BC P INC CHINA NAT PETROLEUM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Among them, the oil pipe transmission hydraulic setting method is safe, reliable and low in cost, but the operation time is long and the efficiency is low; the operation of the cable transmission explosive setting method is relatively simple, but there are greater risks in the storage, transportation and installation of civil explosives

Method used

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  • Novel electro-hydraulic integral bridge plug release tool
  • Novel electro-hydraulic integral bridge plug release tool
  • Novel electro-hydraulic integral bridge plug release tool

Examples

Experimental program
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Effect test

Embodiment 1

[0022] A novel electro-hydraulic integrated bridge plug delivery tool is characterized in that it includes a removable bridge plug, a hydraulic joint and a piston cylinder 13, and the removable bridge plug is composed of an upper piston 2, a lower piston 3, a tension rod 4. The mandrels 6 are connected in series in sequence, the rear end of the upper piston 2 is connected to the hydraulic electric pump interface 1, the tension rod 4 is covered with a rubber tube 5, and the mandrel 6 is covered with a slip cone 7, a slip 8 and a slip cone 7 At the rear end of the slips 8; the hydraulic nipple is composed of a check valve 14, a relief valve 15, a high and low pressure oil pipe 16, a pressure balance piston 18, a hydraulic electric pump 19, a magnetic coupling 20, a shaft coupling 21, The motor 22 and the fuel tank 25 are composed of one end of the high and low pressure oil pipe 16 covered with a pressure balance piston 18 respectively connected with the one-way valve 14 and the o...

Embodiment 2

[0024] Such as figure 1 with image 3 As shown, a new electro-hydraulic integrated bridge plug delivery tool includes a removable bridge plug, a hydraulic nipple and a piston cylinder 13. The removable bridge plug is composed of an upper piston 2, a lower piston 3, a tension rod 4, a core Axis 6 is connected in series in sequence, the rear end of upper piston 2 is connected to hydraulic electric pump interface 1, tension rod 4 is covered with rubber tube 5, mandrel 6 is covered with slip cone 7, slip 8 and slip cone 7 is in the slip 8 rear end; the hydraulic joint is composed of check valve 14, overflow valve 15, high and low pressure oil pipe 16, pressure balance piston 18, hydraulic electric pump 19, magnetic coupling 20, shaft coupling 21, motor 22 and The oil tank 25 is composed of one end of the high and low pressure oil pipe 16 jacketed with a pressure balance piston 18 respectively connected with the one-way valve 14 and the overflow valve 15, and the other end is conn...

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Abstract

The invention relates to a novel electro-hydraulic integral bridge plug release tool. After the tool is arranged on a setting part, the tool is connected with a power source through a cable to drive an underground hydraulic electric pump to start up; high pressure liquid is injected into a piston cylinder through a water hole by a pump; the piston cylinder is pushed to go down to compress a removable bridge plug setting; the release tool comprises a removable bridge plug and a hydraulic short section, wherein the removable bridge plug is composed of an upper piston, a lower piston, a tension rod and a central spindle which are connected in series; the rear end of the upper piston is connected with a hydraulic electric pump interface; a rubber sleeve is sleeved outside the tension rod; a slip cone and a slip are sleeved outside the central spindle; the slip cone is arranged at the rear end of the slip; the hydraulic short section comprises a one-way valve, an overflow valve, a high-low pressure oil pipe, a pressure balance piston, the hydraulic electric pump, a magnetic coupling, a coupler, a motor and an oil tank. The novel electro-hydraulic integral bridge plug release tool combines the respective characteristics of a cable transmission bridge plug and an oil pipe hydraulic setting bridge plug to carry out transmission, depth checking and positioning by utilizing the cable, and supply power for underground power sources after reaching a preset position; and the hydraulic pump is driven by electric energy to realize bridge plug setting and releasing.

Description

technical field [0001] The invention belongs to downhole plugging equipment, in particular a novel electro-hydraulic integrated bridge plug delivery tool, which is widely used in downhole operations such as layered testing, well testing, fracturing, acidizing, etc., and can also be used for water plugging, plugging Missing work. When it is necessary to mine and communicate with the layers below the bridge plug, the bridge plug can be drilled or salvaged with special tools. Background technique [0002] At present, the commonly used bridge plugs are mainly divided into two types: oil pipe transmission hydraulic setting and cable transmission explosive setting. When the oil pipe transmission bridge plug is set, the oil pipe is pressurized to push the piston to compress the rubber tube, and at the same time push the slips to open and support on the casing wall. The plug is released to realize the setting, and the setting tool is lifted out of the wellhead with the oil pipe; w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B33/1295E21B33/128E21B23/06E21B23/10
Inventor 苏敏文韩虎成邓小强许建伟梁陇霞张宏波侯俊耀田军
Owner BC P INC CHINA NAT PETROLEUM CORP
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