Layered acidification and layered water injection measurement and adjustment integrated multi-functional pipe column

A layered water injection and multi-functional technology, applied in the direction of production fluid, wellbore/well components, earthwork drilling and production, etc., can solve the problem of poor effect of layered acidification and layered water injection, lack of flow testing and deployment, and technical solutions same problem

Pending Publication Date: 2019-02-26
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Compared with this application, the above disclosed technology has different technical solutions, technical effects and technical problems to be solved. The effects of layered acidification and layered water injection are not as good as this application, and there is no way to test and adjust the flow rate while testing and deploying. and other functions

Method used

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  • Layered acidification and layered water injection measurement and adjustment integrated multi-functional pipe column
  • Layered acidification and layered water injection measurement and adjustment integrated multi-functional pipe column
  • Layered acidification and layered water injection measurement and adjustment integrated multi-functional pipe column

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] as attached Figure 1 to Figure 4 As shown in the figure, the multi-functional pipe string integrated with layered acidification and layered water injection measurement and adjustment, the oil pipe is equipped with an integrated water distributor for acidification measurement and adjustment 101, an upper washable well packer 102, and an integrated water distributor for lower acidification measurement and adjustment 104. The lower washable well packer 105, wherein the upper washable well packer 102 and the lower washable well packer 105 are respectively located in the upper acidizing integrated water distributor 101 and the lower acidified integrated water distributor 104 position below.

[0029] A limiting sealing device 103 is also arranged on the oil pipe, and the limiting sealing device 103 is located between the upper washable well packer 102 and the lower integrated water distributor 104 for acidification measurement and adjustment.

[0030] The oil pipe is also p...

Embodiment 2

[0043] as attached Figure 1 to Figure 4 As shown, the multifunctional pipe string integrated with layered acidification and layered water injection measurement and adjustment, the oil pipe is equipped with an integrated water distributor for acidification measurement and adjustment 1, an upper washable well packer 2, and an integrated water distributor for lower acidification measurement and adjustment 4. The lower flushable packer 5, wherein the upper flushable packer 2 and the lower flushable packer 5 are respectively located in the upper integrated water distributor for acidification measurement and regulation 1 and the lower integrated water distributor for acidification measurement and regulation 4 position below. The oil pipe is also provided with a setting and acidizing integrated water distributor 7 , and the setting and acidizing integrated water distributor 7 is located below the lower flushable packer 5 . The oil pipe is also provided with an integrated water dist...

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PUM

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Abstract

The invention discloses a layered acidification and layered water injection measurement and adjustment integrated multi-functional pipe column which comprises an oil pipe; the oil pipe is provided with an upper acidizing measuring and adjusting integrated water distributor, an upper washable well packer, a lower acidizing measuring and adjusting integrated water distributor, and a lower washable packer. The upper washable packer and the lower washable packer are respectively located below the upper acidizing measuring and adjusting integrated water distributor and the lower acidizing measuringand adjusting integrated water distributor. The invention effectively overcomes or avoids the shortcomings and deficiencies in the prior art mentioned above, and adopts a single-column string to realize multi-stage layered acidification and layered water injection, reducing operation steps, saving tool costs and operation costs. The flow test and deployment are carried out in the same manner as the measurement and adjustment, and the measurement efficiency and the adjustment precision are improved.

Description

technical field [0001] The invention relates to a pipe column for layered acidification and layered water injection, in particular to a multifunctional pipe string integrated with layered acidification and layered water injection measurement and adjustment. Background technique [0002] The layered acidification process of water injection well is one of the effective measures to solve the single layer under-injection or multi-layer general acidification unevenness of water injection well. At present, separate injection wells implement layered acidizing, and the well is usually completed by running a layered acidizing string first, and then a layered water injection string. This completion method needs to lift the pipe string twice, which increases the operation process and operation time, and prolongs the well occupation period; at the same time, it causes waste of tool materials and operation costs. The deployment method of throwing and fishing cores in separate injection ...

Claims

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Application Information

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IPC IPC(8): E21B43/20E21B43/22E21B43/27
CPCE21B43/16E21B43/20Y02E10/10
Inventor 马艳洁王宏万孙金峰张卫卫刘晋伟丁晓芳戴群毛振东
Owner CHINA PETROLEUM & CHEM CORP
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