Power system for downhole toolstring

a power system and toolstring technology, applied in the direction of charging equalisation circuit, arrangement of several simultaneous batteries, borehole/well accessories, etc., can solve the problems of increasing complexity of the hydrocarbon search, many problems encountered, and the general inability of present-day instruments to operate in such environments, etc., to improve the efficiency of drilling dynamics comprising

Inactive Publication Date: 2015-04-23
FASTCAP SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Benefits of technology

[0022]In another aspect, the invention provides a method of improving the efficiency of drilling dynamics comprising using any data system described herein.

Problems solved by technology

As people and companies continue to search for and extract oil, the quest for hydrocarbons has grown increasingly complex.
While drilling of the wellbore permits individuals and companies to evaluate sub-surface materials and to extract desired hydrocarbons, many problems are encountered in these harsh environments, where downhole temperatures may range up to or in excess of 300 degrees Celsius.
Moreover, present day instrumentation is generally not built to operate in such an environment, and will fail well before reaching ambient temperatures within this range.
This complication has given rise to all sorts of complex instrumentation.
Consistent with other segments of technology, increasing complexity of instrumentation presents users with increasing power demands.
In particular, elevated temperatures often present technical limitations where conventional systems fail.
For example, conventional power systems comprising electronics and energy storage will fail at temperatures found in downhole environments either due to degradation or destruction of the conventional energy storage or of the conventional electronics.
Moreover, improved instrumentation systems often demand greater capabilities of power systems.

Method used

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  • Power system for downhole toolstring
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first embodiment

[0533]With regard to anions 11 suited for use in an ionic liquid that provides the electrolyte 6, various organic anions 11 may be used. Exemplary anions 11 and structures thereof are provided in Table 6. In a first embodiment, (No. 1), exemplary anions 11 are formulated from the list of substitute groups (á) provided above, or their equivalent. In additional embodiments, (Nos. 2-5), exemplary anions 11 are formulated from a respective base structure (Y2, Y3, Y4, . . . Yn) and a respective number of anion substitute groups (á1, á2, á3, . . . án), where the respective number of anion substitute groups (á) may be selected from the list of substitute (á) groups provided above, or their equivalent. Note that in some embodiments, a plurality of anion substitute groups (á) (i.e., at least one differing anion substitute group (á)) may be used in any one embodiment of the anion 11. Also, note that in some embodiments, the base structure (Y) is a single atom or a designated molecule (as desc...

second embodiment

[0791]Specific examples of glass-to-metal seals that have been used in the ultracapacitor 10 include two different types of glass-to-metal seals. A first one is from SCHOTT with a US location in Elmsford, N.Y. This embodiment uses a stainless steel pin, glass insulator, and a stainless steel body. A second glass-to-metal seal is from HERMETIC SEAL TECHNOLOGY of Cincinnati, Ohio. This second embodiment uses a tantalum pin, glass insulator and a stainless steel body. Varying sizes of the various embodiments may be provided.

[0792]An additional embodiment of the glass-to-metal seal includes an embodiment that uses an aluminum seal and an aluminum body. Yet another embodiment of the glass-to-metal seal includes an aluminum seal using epoxy or other insulating materials (such as ceramics or silicon).

[0793]A number of aspects of the glass-to-metal seal may be configured as desired. For example, dimensions of housing and pin, and the material of the pin and housing may be modified as approp...

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Abstract

A downhole power system is provided that includes an energy storage adapted to operate at high temperatures, and a modular signal interface device that serves to control the energy storage component as well as offer a means of data logging at high temperatures. The controller is fabricated from pre-assembled components that may be selected for various combinations to provide desired functionality. The energy storage may include at least one ultracapacitor.

Description

CROSS REFERENCE TO RELATED APPLICATION[0001]The present application claims the benefit of U.S. Provisional Patent Application No. 61 / 896,009, filed Oct. 25, 2014; the present application is also a continuation in part of International Patent Application No. PCT / US2014 / 029992 filed Mar. 15, 2014, which in turn claims priority to U.S. patent application Ser. No. 13 / 843,746 filed Mar. 15, 2013, and to U.S. Provisional Patent Application No. 61 / 888,133 filed Oct. 8, 2013. The entire contents of each of the foregoing references is incorporated herein by reference.BACKGROUND OF THE INVENTION[0002]Systems and methods directed to providing power to instruments in a downhole environment are generally described.[0003]As people and companies continue to search for and extract oil, the quest for hydrocarbons has grown increasingly complex. For example, it is well known that the “easy oil” is generally gone, and exploration now requires searching to greater depths than ever before by drilling a ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): E21B41/00
CPCE21B41/0085H02J7/345H02J7/0016H02J7/007192H02J7/04H02J7/007182Y02E60/13H01G11/62
Inventor SIGNORELLI, RICCARDOCOOLEY, JOHN JACOB
Owner FASTCAP SYST
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