Combined method of pipe string, bridge plug setting and sandblasting perforation

A technology of sand blasting perforation and pipe string, which is applied in the direction of drill pipe, casing, earthwork drilling and mining, etc., which can solve the problems of poor safety and achieve the effect of less equipment, less process and high safety performance

Active Publication Date: 2018-01-30
JEREH ENERGY SERVICES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of this, the object of the present invention is to provide a method for the combination of pipe string and bridge plug setting and sandblasting perforation, so as to avoid the problem of poor safety caused by the need to use pyrotechnic equipment

Method used

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  • Combined method of pipe string, bridge plug setting and sandblasting perforation
  • Combined method of pipe string, bridge plug setting and sandblasting perforation

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Embodiment Construction

[0039] The core of the present invention is to provide a method for combining pipe strings and bridge plug setting with sandblasting and perforating, so as to avoid the problem of poor safety caused by the need to use pyrotechnic equipment.

[0040] Hereinafter, an embodiment will be described with reference to the drawings. In addition, the examples shown below do not limit the content of the invention described in the claims in any way. In addition, all the contents of the configurations shown in the following embodiments are not limited to be essential to the solutions of the invention described in the claims.

[0041] see figure 1 with figure 2 , figure 1 It is a schematic structural diagram of a pipe string provided by an embodiment of the present invention; figure 2 A cross-sectional view of a bridge plug provided by an embodiment of the present invention.

[0042] The tubing string provided by the embodiment of the present invention includes a serially connected ...

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PUM

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Abstract

The embodiment of the present invention discloses a string of pipe strings, which at least includes serially connected coiled tubing connectors, mechanical throwers, centralizers, collar positioners, sandblasting and perforating sliding sleeves, hydraulic setting tools and bridge plugs; The sandblasting and perforating sliding sleeve, the hydraulic setting tool and the bridge plug are sequentially connected in series from one end to the other end of the coiled tubing connector of the string; the coiled tubing connector is used to connect with the coiled tubing. The invention can complete the whole operation of running the bridge plug and setting the bridge plug by using the coiled tubing equipment, so less equipment is used during construction, less process, less labor, and the use of pyrotechnic equipment can be avoided, the safety performance is high, and the well condition is not affected Strong adaptability, after the bridge plug is drilled out, the full diameter can realize the large-displacement staged fracturing of the casing horizontal well. The invention also discloses a combined method of bridge plug setting and sand blasting perforation.

Description

technical field [0001] The invention relates to the field of petroleum technology, and more specifically relates to a method for combining pipe strings and bridge plug setting with sandblasting and perforating. Background technique [0002] When carrying out bridge plug and perforation operations in horizontal wells, the method of hydraulic pumping bridge plugs and perforating guns is usually used. This method has the characteristics of reliable isolation, unlimited stages of staged fracturing, and accurate placement of fractures. In recent years, it has been widely used in unconventional oil and gas reservoirs at home and abroad. [0003] The existing method of hydraulic pumping bridge plugs and perforating guns is to use cables to lower the bridge plugs and perforation pipe strings, and then pump liquid into the well, and the flow of liquid will push the bridge plugs and their associated tools. to the predetermined location. Then power on the bridge plug setting tool thr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B17/00E21B43/11E21B33/134E21B43/267
Inventor 宁世品梅鹏
Owner JEREH ENERGY SERVICES
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