Methods and materials for evaluating and improving production of geo-specific shale reservoirs

A shale, surface technology, applied in directional drilling, earthmoving, wellbore/well components, etc., can solve problems such as inefficient recovery

Inactive Publication Date: 2018-04-17
BAKER HUGHES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Potential problems associated with water flooding techniques include inefficient recovery due to variable permeability or similar conditions affecting fluid transport within the reservoir

Method used

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  • Methods and materials for evaluating and improving production of geo-specific shale reservoirs
  • Methods and materials for evaluating and improving production of geo-specific shale reservoirs
  • Methods and materials for evaluating and improving production of geo-specific shale reservoirs

Examples

Experimental program
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Embodiment Construction

[0012] Using a single wellbore or "single hole" approach to obtain hydrocarbon fluids from subterranean formations, even if directional drilling and hydraulic fracturing are implemented, there are several limitations. These limitations include, but are not necessarily limited to, the main reason for obtaining information about the direct environment of a single wellbore. method.

[0013] It has been found that the use of at least one diagnostic lateral wellbore adjacent or close to at least one main lateral wellbore or another diagnostic lateral wellbore can provide information about the at least one main lateral wellbore and / or the diagnostic lateral wellbore and / or the surface surrounding these wellbores. A large amount of information under the volume, that is, empirical knowledge (defined as data in this article). As defined herein, in one non-limiting embodiment, the auxiliary or diagnostic wellbore is a lateral wellbore that is drilled for: in one or more fracturing sections...

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Abstract

Diagnostic or assisting lateral wellbores can have a significant benefit for injecting and distributing treatment fluids and other materials within complex fracture networks that surpass conventionalinjection at the primary lateral wellbore perforations for acquiring empirical knowledge about the numerous processes that influence shale reservoir production which occur after primary shale reservoir stimulation. Injection of diagnostic treatment fluids or treating chemicals for understanding production optimization, such as water-block removal, fines migration removal, and treating chemicals for prevention of scale and paraffin deposition, can be injected along the diagnostic lateral wellbore or fracture interval lateral wellbores to give broader and/or deeper distribution into the fracturenetwork than by using mono-bore-centric diagnostic injection techniques. Diagnostic lateral treatment techniques can also improve fluid or chemical distribution, such as the use of gas injection to help energize fluid flow to the primary lateral during production optimization treatments, including reverse diversion methodology.

Description

Technical field [0001] The present invention relates to a method of using multiple wellbores to obtain information about subterranean formations and their characteristics, and more specifically, in a non-limiting embodiment, to using multiple wellbores to obtain information about unconventional shale subterranean formations and their characteristics The method for processing the unconventional shale subterranean formation and its characteristics, the plurality of wellbores includes at least one main lateral wellbore and at least one adjacent diagnostic lateral wellbore. technical background [0002] As we all know, hydrocarbons (for example, crude oil and natural gas) are recovered from underground formations by drilling a wellbore into the underground reservoir where the hydrocarbons are located, and using the natural pressure of the hydrocarbons or other lifting mechanisms (such as, Pumping, air lift, electric submersible pump (ESP)) or another mechanism or principle to produce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/30E21B43/26E21B43/267E21B37/06E21B7/06
CPCE21B43/26E21B47/10E21B47/0025
Inventor J·B·克鲁斯T·黄R·S·赫特
Owner BAKER HUGHES INC
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