Volume fracturing device for horizontal well and operating method adopting same

A technology of volume fracturing and operation method, which is applied in the direction of production fluid, earth drilling, wellbore/well components, etc., which can solve the problems of unsatisfactory fracturing effect and achieve the effect of improving fracturing effect

Inactive Publication Date: 2015-06-24
成都科特柯本科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a horizontal well volumetric fracturing device and its operating method in order to overcome the shortcomings of the unsatisfactory fracturing effect in the prior art

Method used

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  • Volume fracturing device for horizontal well and operating method adopting same
  • Volume fracturing device for horizontal well and operating method adopting same

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Embodiment Construction

[0022] The present invention is described in further detail now in conjunction with accompanying drawing. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, so they only show the configurations related to the present invention.

[0023] like figure 1 As shown, a volumetric fracturing device for horizontal wells includes a rotor 1, a packer 8, a differential pressure control circulation valve 9, an ultrasonic transducer 2, an injector 10, a conduit 3, a booster valve 5 and The liquid inlet 6, the rotor 1 wraps several conical sub-rotors, and there are liquid outlet holes between each sub-rotor, and the liquid outlet holes communicate with the conduit 3 through a one-way valve. 1 can rotate along the axis of the guide tube 3, and the guide tube 3 is also sleeved with a centralizer 4.

[0024] As a preference, the centralizer 4 is provided with two through holes 7, and the two through h...

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Abstract

The invention relates to a volume fracturing device for a horizontal well and an operating method adopting the same. The volume fracturing device for the horizontal well comprises a swivel, a packer, a pressure difference control circulating valve, an ultrasonic transducer, an ejector, a guide pipe, a booster valve and a liquid inlet, wherein the swivel, the packer, the pressure difference control circulating valve, the ultrasonic transducer, the ejector, the guide pipe, the booster valve and the liquid inlet are connected in sequence, the swivel comprises a plurality of conical sub-swivels, liquid outlets are formed between the sub-swivels, all the liquid outlets are communicated with the guide pipe through one-way valves, the swivel can rotate along the axis of the guide pipe, and the guide pipe is further sleeved with a centralizer. The operating method adopting the volume fracturing device for the horizontal well comprises the following steps of downward drilling, setting, sand blasting, shake drilling and ultrasonic crack expanding, and setting, sand blasting, shake drilling and ultrasonic crack expanding are conducted in a circulating mode. According to the volume fracturing device for the horizontal well and the operating method adopting the same, volume fracturing in the horizontal well is achieved through the combination of ultrasonic vibrating and liquid sand blasting and impacting by means of rotary vibration of the swivel, and the fracturing effect is improved.

Description

technical field [0001] The invention relates to the field of oil and gas field exploitation, in particular to a horizontal well volume fracturing device and an operating method thereof. Background technique [0002] Volume fracturing is proposed by the new modern theory of volume fracturing. Through hydraulic fracturing to reform the reservoir, while forming one or more main fractures, the natural fractures will continue to expand and brittle delay to produce shear slip. However, due to geological differences, it is difficult to generate secondary or even tertiary fractures after the main fractures are generated only by the impact of liquid jets, and additional operations are required to achieve this. It is very troublesome, and it is easy to damage the internal structure of the rock formation and cause losses. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a horizontal well volumetric fracturing device and it...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/26
CPCE21B43/26
Inventor 王长春
Owner 成都科特柯本科技有限公司
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