Filling pipe string and sand control completion method

A technology for a pipe string and an outer pipe string is applied in the fields of filling pipe strings and sand control and completion, and can solve the problems of poor sand control and water control.

Inactive Publication Date: 2020-11-13
东营市瑞丰石油技术发展有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the first aspect of the present invention is to provide a filling pipe string, which can solve the technical problem of poor sand control and water control in the background art

Method used

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  • Filling pipe string and sand control completion method
  • Filling pipe string and sand control completion method
  • Filling pipe string and sand control completion method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Such as Figure 1-Figure 3 As shown, the embodiment of the present invention provides a filling pipe string, including an outer pipe string, the outer pipe string includes a filling tool 20, a water control screen 30 and a sliding sleeve screen 40, and the upper end of the water control screen 30 and the filling tool 20 The lower end of the water control screen pipe 30 is connected with the sliding sleeve screen pipe 40. A guide shoe 50 is connected to the bottom of the sliding sleeve screen pipe 40 .

[0035]By setting the packing tool 20, the water control screen 30 and the sliding sleeve screen 40, the packing tool 20 can be used to carry out gravel packing on the packing string outside the water control screen 30 and the wellbore annulus, and the gravel is controlled by the water control screen. 30 is blocked outside the water control screen 30, a small part of the filling liquid enters the water control screen 30 and returns, and most of the filling liquid returns...

Embodiment 2

[0057] The sand control completion method provided in this embodiment adopts the filling string of the aforementioned embodiment, and includes the following steps:

[0058] After the filling string is put in place, throw the ball, and press it, set the top packer 10, continue to press, open the filling port of the filling tool 20, turn the string forward before filling, and throw it back. Then, the sand control pump is used to fill the water control screen 30 filling pipe string and the annulus of the borehole wall, the gravel is blocked by the water control screen 30 outside the water control screen 30, and a small part of the filling fluid passes through the water control screen 30 The hole of the water control valve enters in the water control screen pipe 30, and returns through the flushing pipe 80, and most of the filling liquid passes through the sliding sleeve screen pipe 40, enters the flushing pipe 80 and returns.

[0059] Specifically, the filling liquid passes throu...

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Abstract

The invention belongs to the technical field of well completion of petroleum drilling, and particularly relates to a filling pipe string and a sand control completion method. The filling pipe string comprises an outer pipe string, wherein the outer pipe string comprises a filling tool, a water control screen pipe, and a sliding sleeve screen pipe, the upper end of the water control screen pipe isconnected with the filling tool, and the lower end of the water control screen pipe is connected with the sliding sleeve screen pipe. The filling pipe string solves the technical problem of poor sandcontrol and water control effects, and achieves the technical effect of achieving effective return of filling liquid to ensure the filling effect.

Description

technical field [0001] The invention belongs to the technical field of well completion of petroleum drilling, and in particular relates to a filling pipe string and a sand control well completion method. Background technique [0002] With the continuous development of oil recovery technology in the world, horizontal well development is more and more used in reservoir development due to its advantages of large contact area with oil and gas. With the extension of the development time of horizontal wells, the problem of edge water and bottom water has become an important factor that inhibits the production of oil and gas wells. In the production process, there will be problems such as different pressure systems of different layers, different permeability of different layers, and different distances from the oil-water interface, which will easily lead to interlayer interference and interlayer crossing, which will affect the overall development effect of the reservoir. And the u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/08E21B43/04E21B34/06
CPCE21B34/06E21B43/04E21B43/086
Inventor 张斌梁作愿武洪鑫孔洋苏延龙张玉涛
Owner 东营市瑞丰石油技术发展有限责任公司
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