6-K

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

Form 6-K

REPORT OF FOREIGN PRIVATE ISSUER
PURSUANT TO RULE 13a-16 OR 15d-16
UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of December 2017

Commission File Number: 000-24027

NXT Energy Solutions Inc.
(Translation of registrant's name into English)

Suite 302
3320 - 17th Avenue SW
Calgary, Alberta, Canada, T3E 0B4
(Address of principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.
Form 20-F [ X ]      Form 40-F [   ]

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): __

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): __

Indicate by check mark whether by furnishing the information contained in this Form, the registrant is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934: __

If “Yes” is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b): __

The Issuer is filing material documents not previously filed.

On December 12, 2017, the Registrant issued a press release, a copy of which is attached hereto as Exhibit 99.1 and is incorporated herein by reference.

(c) Exhibit 99.1. Press release dated December 12, 2017

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

	NXT Energy Solutions Inc.
	(Registrant)
Date: December 12, 2017	/s/ Charles Shelby
	Charles Shelby
	Chief Financial Officer

EX-99.1

EXHIBIT 99.1

NXT Energy Solutions Advises of Successful Drilling of SFD® Recommendations in Argentina

CALGARY, Alberta, Dec. 12, 2017 (GLOBE NEWSWIRE) -- NXT Energy Solutions Inc. (“NXT Energy” or the “Company”) (TSX:SFD) (OTCQB:NSFDF) is pleased announce that its client Petroquímica Comodoro Rivadavia (PCR) has drilled multiple successful wells as part of their 2016/2017 drilling campaign corresponding to SFD^® recommendations made in their Colhue Huapi exploration concession subsequent to a SFD^® survey carried out in 2012.

The airborne SFD^® data was acquired and interpreted using a grid survey over the 4,000 km² exploration area. This generated multiple SFD^® Leads that exhibited signal patterns consistent with a valid trapping mechanism and were recommended for further geological and geophysical investigation.  Seismic surveys were later designed by PCR to cover the recommended areas and subsequent integration of the SFD^® and seismic/geologic data resulted in the selection of the drilling locations.

Mr. Miguel Torilo, Manager of Oil and Gas at PCR commented, “We utilized the SFD^® technology in order to optimize our seismic acquisition program and to focus our exploration resources on the most prospective regions of our block. Ensuing integration of the SFD^® data with other geological and geophysical data combined with the drilling results to date are indicative of the effectiveness of the SFD^® technology within the exploration cycle.”

Mr. George Liszicasz, President and CEO of NXT commented, “We are pleased to be able to contribute effectively to PCR and to our worldwide clients’ hydrocarbon exploration programs and to help them reach their objectives.”

NXT Energy is a Calgary based company whose proprietary Stress Field Detection ("SFD^®") survey system utilizes quantum-scale sensors to detect gravity field perturbations in an airborne survey method which can be used both onshore and offshore to remotely identify areas with exploration potential for traps and reservoirs.  The SFD^® survey system enables our clients to focus their hydrocarbon exploration decisions concerning land commitments, data acquisition expenditures and prospect prioritization on areas with the greatest potential.  SFD^® is environmentally friendly and unaffected by ground security issues or difficult terrain, and is the registered trademark of NXT Energy Solutions Inc.  NXT Energy provides its clients with an effective and reliable method to reduce time, costs, and risks related to exploration.

Forward-Looking Statements

This news release may include forward-looking statements. When used in this document, words such as “intends”, “plans”, “anticipates”, “expects” and “scheduled”, are forward-looking statements. Forward-looking statements are subject to a wide range of risks and uncertainties, and although the Company believes that the expectations represented by such forward-looking statements are reasonable, there can be no assurance that such expectations will be realized.  Any number of factors can cause actual results to differ materially from those in the forward-looking statements.  Risk factors facing NXT Energy are described in its most recent MD&A for the period ended 30^th June 2016, which has been filed electronically by means of the System for Electronic Document Analysis and Retrieval ("SEDAR") located at www.sedar.com.  Such forward-looking statements are made as at the date of this news release, and the Company assumes no obligation to update or revise them, either publicly or otherwise, to reflect new events, information or circumstances, except as may be required under applicable securities law.

For further information, please contact:

George Liszicasz
President & CEO
NXT Energy Solutions Inc.
+1-403-206-0800
nxt_info@nxtenergy.com
www.nxtenergy.com

Neither the TSX nor its Regulation Services Provider (as that term is defined in the policies of the TSX) nor the OTC QB Markets accept responsibility for the adequacy or accuracy of this release.