Tubular column string and bridge plug setting and sand blasting perforation combining method

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, reliable bridge plug sealing and less process

Active Publication Date: 2014-12-10
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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  • Tubular column string and bridge plug setting and sand blasting perforation combining method
  • Tubular column string and bridge plug setting and sand blasting perforation combining method

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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 solution of the invention described in the claims.

[0041] see figure 1 and 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 co...

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PUM

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Abstract

The embodiment of the invention discloses a tubular column string. The tubular column string at least comprises a coiled tubing connector, a mechanical releasing tool, a centering device, a collar locator, a sand blasting perforation sliding sleeve, a hydraulic setting tool and a bridge plug. The sand blasting perforation sliding sleeve, the hydraulic setting tool and the bridge plug are sequentially connected in series in the direction from one end to the other end of the coiled tubing connector of the tubular column string, and the coiled tubing connector is used for being connected with coiled tubing. The whole operation of bridge plug tripping and setting can be completed through coiled tubing equipment, so that less equipment is used in construction, working procedures are few, and manual work is less; pyrotechnics equipment can be avoided, safety performance is high, the coiled tubing equipment is high in adaptability to well conditions, and large-discharge-capacity staged fracturing of a casing horizontal well can be achieved due to the full bore after the bridge plug is removed through drilling. The invention further discloses a bridge plug setting and sand blasting perforation combining method.

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 Applications(China)
IPC IPC(8): E21B17/00E21B43/11E21B33/134E21B43/267
Inventor 宁世品梅鹏
Owner JEREH ENERGY SERVICES
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