SPECIAL NOTICE
66 -- 66--Downhole Seismic Sonde
- Notice Date
- 8/16/2021 1:11:36 PM
- Notice Type
- Special Notice
- NAICS
- 334519
— Other Measuring and Controlling Device Manufacturing
- Contracting Office
- OFFICE OF ACQUISITON GRANTS SACRAMENTO CA 95819 USA
- ZIP Code
- 95819
- Solicitation Number
- 140G0321Q0177
- Response Due
- 8/24/2021 1:00:00 PM
- Archive Date
- 09/08/2021
- Point of Contact
- Allan-Loucks, Dana, Phone: 916-278-9344
- E-Mail Address
-
dallan-loucks@usgs.gov
(dallan-loucks@usgs.gov)
- Description
- Notice of Intent This is a notice of intent to solicit from a single source. The U.S. Geological Survey (USGS), intends to award a purchase order to Advanced Seismic Instrumentation Research, Carbondale, CO for downhole seismic sondes as described in the attached Salient Characteristics. Award will be made in accordance with Federal Acquisition Regulation (FAR) 13.106-1(b) and the procedures at FAR Part 12 entitled, Acquisition of Commercial Items and FAR Part 13 entitled, Simplified Acquisition Procedures. Advanced Seismic Instrumentation Research is, to the USGS' knowledge, the only source who can provide unique equipment to meet the government's requirements. The purpose of this notice is to satisfy the requirements of FAR Subpart 5.2. This notice of intent is not a request for competitive quotes. However, all responsible parties may submit a quotation by the closing date of this announcement which shall be considered by the agency. No solicitation will be issued. A determination not to compete this action based upon responses received is in the sole discretion of the Government. The NAICS code for this action is 334519, Other Measuring & Controlling Device Manufacturing. Responses or inquiries shall only be accepted through electronic mail addressed to dallan-loucks@usgs.gov and must be uploaded and received in their entirety no later than 08/24/2021 1500 ES. Responses submitted by hardcopy shall not be accepted or considered. Specifications for Seismic Sonde: Background: The USGS Earthquake Science Center is requesting purchase of a 3-component, 15-Hz seismic sensor in a high-pressure/temperature waterproof housing (seismic sonde) to be installed on a 7-conductor electromechanical cable directly within the San Andreas Fault zone at measured depths of up to 10,546 ft in the SAFOD borehole, where the borehole is inclined at 53 degrees from the vertical (see figure below). The sonde will be installed 50 meters above a repeating magnitude 2 earthquake to study the processes associated with earthquake nucleation, rupture propagation and arrest. To ensure long-term reliability, this purchase needs to include a spare sonde (in case the first one fails over time) and field engineering assistance, which is described in more detail below. Minimum salient characteristics: The seismic sonde selected for this purchase order must possess the following characteristics: 1. Contain a 3-component, passive, 15-Hz omnidirectional seismic sensor in a high-pressure/temperature waterproof housing that can work at inclinations of up to 61 degrees from the vertical and at measured depths (i.e., as measured along the borehole) up to 10,546 ft (3214 m) in the SAFOD borehole for an indefinite period of time. Since the SAFOD borehole is significantly deviated from the vertical (see figure below), this measured depth of 10,546 ft corresponds to a true vertical depth of 8682 ft (2646 m). 2. Each of the three orthogonal components must consist of three moving-coil geophones wired in series for maximum signal-to-noise ratio during transmission over long cables without downhole amplification. The characterizes of these geophones must meet the following specifications: natural frequency 15 Hz � 10 %, sensitivity 205 V/m/s � 10 %, distortion < 0.3 %, and damping 0.7 � 10 %. The sensors must be able to function reliably at temperatures of up 234 deg F (112 deg C) for an extended period. 3. Due to the high dissolved gas content (mostly methane-series gases) in the SAFOD borehole fluid, the sonde housing cannot have any elastomers (O-rings or other rubber components) directly exposed to the borehole fluid. This will require a specialized cable head termination at the top of the sonde containing dense Krytox Oil (manufactured by Dow Corning) to maintain a low gas solubility, gravitationally stable oil reservoir and prevent degradation of the internal rubber boot and fluid intrusion into the sonde. Solid seals such as epoxy in the cable head housing have been found to degrade and leak over time during prior SAFOD installations and are not acceptable. 4. The sonde housing -- including cable head termination -- must be manufactured with stainless steel and be able to withstand an external pressure of up to 4500 psi and temperatures of up to 234 deg F (112 deg C) without leakage. 5. Although the internal diameter of the lowermost (7 inch) liner in SAFOD is 6.276 inches, the outside diameter of the sonde housing must be less than 73 mm, to allow for use in 3-1/2� N80, 9.3 lbs/ft EUE tubing during later phases of the SAFOD project. 6. The sonde housing must be external flush, tapered on top and bottom, and include a solid stainless steel sinker bar on the bottom of the sonde housing (with the same O.D.) to facilitate passage of the sonde over the 7-inch-liner hanger and casing joints. Installation requirement: A field engineer associated with the Contractor will need to bring the seismic sonde out to the SAFOD site and perform the following tasks on site: 1. Install the sensor on the end of the USGS�s 7-conductor, 7/16-inch-diameter, 14,000-ft-long electromechanical cable (which is permanently installed at the SAFOD site). 2. Verify high-quality (high signal/noise, correct polarities on each channel, minimum crosstalk between channels) signal transmission through this cable and recording on a three-channel RefTek seismic data recorder (which the USGS will provide) at the surface. 3. Assist with lowering the tool to the bottom of the SAFOD borehole on the USGS electromechanical cable and associated hoist unit and verify adequate cable tension to minimize post-installation stick-slip behavior. 4. Verify satisfactory sonde performance once the sonde is installed at target depth and recording on the RefTek system. This includes verifying that high-quality data is being received, as described under step 2 for the surface test. 5. If satisfactory performance is not achieved, then the Contractor�s field engineer will conduct diagnostic tests and attempt to remedy the situation. This may include removal of the sonde from the borehole and repeating of steps 1-4.
- Web Link
-
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- Record
- SN06097854-F 20210818/210816230113 (samdaily.us)
- Source
-
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