Three-open pickling integrated completion string and method

A well completion string and pickling technology, which is used in earth-moving drilling, wellbore/well components, cleaning equipment, etc. The effect of cleaning and completion process and improving efficiency

Active Publication Date: 2018-05-22
山东普瑞思德石油技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, domestic oil well three-opening pickling and completion technology adopts three-opening pickling and completion string first, and then runs the well cleaning string for pickling, which takes a long time to take up the well, high operating costs, poor pickling effect, and there are stuck pipe strings. risks of

Method used

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  • Three-open pickling integrated completion string and method

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Embodiment Construction

[0021] The present invention will be described in further detail below in conjunction with specific examples, but not as a limitation of the present invention. In the following description, different "one embodiment" or "embodiment" do not necessarily refer to the same embodiment. Furthermore, the particular features, structures, or characteristics of one or more embodiments may be combined in any suitable manner.

[0022] figure 1 It is a structural schematic diagram of the three-opening acid-washing integrated completion string in the embodiment of the present invention. Such as figure 1 As shown, the three-opening acid-washing integrated completion string includes the hanging packer 1, the three-opening acid-washing integrated well-staying string 100 and the three-opening acid-washing integrated service string 200, and the hanging packer 1 is For the double-suspension packer, the three-opening acid-washing integrated well-staying string is connected to the outer suspensi...

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Abstract

The invention discloses a three-opening and acid-washing integrated well completion pipe string and a method, wherein the integrated well-completion pipe string includes a hanging packer, a three-opening acid-washing integrated well retention pipe string and a three-opening acid-washing integrated service. The pipe string, the suspension packer is a double suspension packer, the three-open pickling integrated well retention pipe string is connected to the external suspension head of the double suspension packer, and the three-open acid-washing integrated service pipe string is connected with the double suspension packer The three-open pickling integrated service pipe string is located inside the three-open pickling integrated well retention pipe string, and the three-open pickling integrated well-retaining pipe string includes a pickling valve and a valve located at the lower part of the pickling valve. The perforated pipe, the sliding seal between the three-open pickling integrated service string and the three-open pickling integrated well retention pipe string, the three-open pickling integrated well-retaining pipe string and the three-open pickling integrated service pipe string. The seal is located between the pickling valve and the perforated pipe. The invention simplifies the steps of pickling and well completion and improves the operation efficiency.

Description

technical field [0001] The invention relates to the technical field of oil well pickling and completion, in particular to a three-opening pickling integrated well completion string and a method. Background technique [0002] At present, domestic oil well three-opening pickling and completion technology adopts three-opening pickling and completion string first, and then runs the well cleaning string for pickling, which takes a long time to take up the well, high operating costs, poor pickling effect, and there are stuck pipe strings. risks of. Contents of the invention [0003] In view of this, the embodiment of the present invention provides a three-opening acid washing integrated completion pipe string and method, the main purpose of which is to simplify the acid washing and completion process of oil, gas and water wells and improve efficiency. [0004] In order to achieve the above object, the present invention mainly provides the following technical solutions: [0005...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B37/06
Inventor 李江涛韩军军许清华薛学朝张帅
Owner 山东普瑞思德石油技术有限公司
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